TWI708031B - Light projecting device having a modular base unit and a base unit thereof - Google Patents

Abstract

The present invention discloses a light projecting device having a modular base unit. The light projecting device comprising a light machine assembly, a base unit, a heat conductive connection member, and a heat radiating unit. The base unit includes a main body portion and a positioning lug provided on the peripheral edge of the main body portion. The main body is provided with a mounting hole. The positioning lug has a light-shaped adjustment hole. The first end of the thermally conductive connecting member is thermally connected to the light machine assembly, and a stopper protrusion is provided on the outer surface of the first end adjacent to the heat conductive connecting member, and the second end of the heat conducting connecting member passes through the mounting hole of the base unit. The heat radiating unit is detachably provided at the second end of the heat conductive connection member and is thermally connected to the heat conductive connection member. Whereby the base unit of the present invention can be alternatively assembled to the heat conductive connecting member and abuts against the restricting protrusions and can be light-shaped by the light-shaped adjusting hole, and can be modularly adapted to various lamp base structure.

Description

Light projection device with modular base unit and base unit thereof

The invention relates to a light projection device for vehicle lamps, in particular to a light projection device with a modular base unit and a base unit thereof.

In order that when the vehicle is traveling in an environment with insufficient light sources (such as at night or inside a tunnel), passers-by (including vehicle driving and other drivers or pedestrians around) can still grasp the movement of the vehicle and the changes in the surrounding environment, the lighting device is obviously not available on the vehicle. Optional equipment. In addition, with the rapid development of lighting technology in recent years, the luminous light source used in car lights has gradually evolved from the original incandescent lamp, halogen lamp and xenon lamp to the most common LED lamp today. The use of LED lights as the lighting source not only has more excellent lighting performance, but also has the advantages of environmental protection and energy saving. Therefore, not only the combination of car headlights, the mainstream of LED lights, but also the use of car lighting Fog lights, indoor reading lights and warning lights have gradually adopted LED lights as their main light sources.

In view of the fact that the heat generated during the operation of the LED lamp will not only affect the service life of the LED lamp, but the high temperature generated by the accumulation of heat will also affect the LED lamp and cause light decay problems, directly affecting the lighting performance in use, and the aforementioned The problem is especially obvious when using higher power LED lights. Therefore, LED lights used in high-power applications such as car headlights pay special attention to the heat dissipation effect during use. Therefore, most of these LED lights use thermally conductive metal as the material of their base, and are designed with various heat dissipation structures. To avoid heat accumulation.

At present, there are many kinds of lamp source structures used in car lamps. The related lamp source structures in ECE R37 in the Regulations of United Nations Economic Commission for Europe (ECE regulations) include but are not limited to: H1 , H4, H14, H15, H17, H19, HS1, S2, HB3A (also known as 9005), HB4A (also known as 9006), H7 or H18, etc. The foregoing classification is mainly based on the shape of the main body of the base unit (metal base) and the number of lamp pins. Among them, the specifications of the H1, H4, and H7 bulbs are all round base units, H1 is a single lamp pin, H4 is a three lamp pin, and H7 is a double lamp pin; in addition, for the convenience of identification and distinction and the adaptation between the lamp holders Insert the card, the base unit of the H1 size bulb, there is no protruding positioning lug (also called the catch) on the side of the main body, and the base unit of the H4 size bulb has three protrusions on the outer periphery of the main body. The raised positioning lug, the base unit of the H7 bulb, is provided with a raised positioning lug on only one side of the main body. The specifications of H11, HB3A and HB4A bulbs use a plastic base, and there are different numbers of small protruding teeth inside the interface. Among them, the H11 bulb has a long tooth protruding from the bottom edge, and the HB3 bulb is on the top. Two short teeth protrude from the edge, and one short tooth protrudes from the upper edge of the bulb of HB4. The H3 specification bulb is quite special, with only a single extended electrical connection wire as the lamp pin, and its metal base is also oval when viewed from above, which is convenient for the driver to distinguish.

It can be seen from the above description that there are many types of bulbs currently used in car lamps, and lamps of different specifications must be used in order to be installed and used. This not only causes problems such as high manufacturing and development costs for manufacturers, but also for users. The freedom of selection and replacement of the bulb is greatly restricted, and there is obviously a need for further improvement.

The technical problem to be solved by the present invention is to provide a light projection device with a modular base unit and its base unit in view of the shortcomings of the prior art.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a light projection device with a modular base unit, which includes an opto-mechanical assembly, a base unit, a thermally conductive connector, and a Cooling unit. The base unit includes a main body and at least one positioning lug provided on the periphery of the main body. The main body is provided with a mounting hole, and the positioning lug is provided with a light-shaped adjustment hole. A first end of the thermally conductive connecting piece is thermally connected to the opto-mechanical component, a limiting protrusion is provided on the outer surface of the first end adjacent to the thermally conductive connecting piece, and one of the thermally conductive connecting pieces The second end passes through the mounting hole of the base unit, so that the base unit is replaceably assembled to the thermally conductive connector, and the main body portion of the base unit abuts against The limiting convex portion. The heat dissipation unit is detachably arranged at the second end of the heat conduction connector, and is thermally connected to the heat conduction connector.

Another technical solution adopted by the present invention is to provide a base unit of a light projection device, and the base unit is used for positioning an opto-mechanical component on a lamp holder structure of an illumination device. The base unit includes a main body and at least one positioning lug. The main body is provided with a mounting hole, and the opto-mechanical component passes through the mounting hole to be combined with the base unit into a single component. The positioning lug is arranged on the periphery of the main body, the base unit is mutually positioned with the lamp holder structure through the positioning lug, and a light-shaped adjustment hole is opened on the positioning lug.

One of the beneficial effects of the present invention is that the light projection device and its base unit provided by the embodiments of the present invention can utilize the technical solution of "the positioning lug is provided with a light-shaped adjustment hole", so that the base unit can be Modularization can achieve the technical effect of "adapting various lamp holder structures for light shape adjustment".

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description, and are not used to limit the present invention.

U, U’: Light projection device

1. 1’: Optical and mechanical components

11: Thermal interface unit

113: The first optical positioning structure

12, 12’: Carrying unit

121: second optical positioning structure

122: thermal interface unit installation slot

123: Extension fixed part

13: reflection unit

14: lens unit

15: Lens hood

111: The first light-emitting structure

112: second light emitting structure

2, 2’: Base unit

21, 21’: Main body

211, 211’: Mounting hole

212, 212’: sleeve part

213: Adaptation gap

212A: Angle adjustment hole

212B: Angle adjustment hole

212A’: Angle adjustment hole

22, 22’: Positioning lug

221, 221’: Light shape adjustment hole

3: Thermal connection

301: The first half of the cooling column

302: The second half of the cooling column

31: Limit convex

311: The first half limit protrusion

312: The second half limit protrusion

32: Thermal interface unit accommodating slot

321: Combination convex column

322: Combination hole

331, 332: thermal pad

34: Wiring channel

35: Angle fixed column

36: external thread

3A: The first section

3B: Section 2

3C: The third paragraph

4: Cooling unit

41: Internal thread

5: Washer

6: Support

61: Upper support part

62: Lower support part

P: reflective structure

S: Screw

L1, L2: light

Fig. 1 is a three-dimensional assembly diagram of the first embodiment of the present invention.

2 is a perspective view of the base unit assembled to the thermally conductive connector according to the first embodiment of the present invention.

3 is a perspective view of the connection relationship between the thermally conductive connector and the thermally conductive interface unit of the present invention.

4 is a three-dimensional schematic diagram of the connection relationship between the components of the optical-mechanical assembly of the present invention.

FIG. 5 is another three-dimensional schematic diagram of the connection relationship between the components of the optical-mechanical assembly of the present invention.

FIG. 6 is a schematic diagram of the connection relationship between the optical-mechanical component and the thermally conductive connector according to one embodiment of the present invention.

FIG. 7 is a schematic diagram of light projection of the light emitting unit of the present invention.

FIG. 8 is a three-dimensional schematic diagram of the base unit of the first embodiment of the present invention.

FIG. 9 is another schematic diagram of light projection of the light-emitting unit of the present invention.

Fig. 10 is a schematic front view of the base unit through a section.

Fig. 11 is a three-dimensional assembly diagram of the second embodiment of the present invention.

Fig. 12 is a perspective schematic view of the base unit assembled to the thermally conductive connector according to the second embodiment of the present invention.

Fig. 13 is a perspective view of a base unit according to a second embodiment of the present invention.

14 is a schematic diagram of one of the light projections of the light-emitting unit according to the second embodiment of the present invention.

15 is another schematic diagram of light projection of the light emitting unit according to the second embodiment of the present invention.

The following is a specific example to illustrate the implementation of the "light projection device with modular base unit and its base unit" disclosed in the present invention. Those skilled in the art can understand the present invention from the content disclosed in this specification. The advantages and effects of fruit. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not described in terms of actual size. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the technical scope of the present invention.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., these elements or signals should not be limited by these terms. These terms are used to distinguish one element from another, or one signal from another signal. In addition, as used herein, the term "or" may include any one or all combinations of more of the associated listed items as appropriate.

[First Embodiment]

First, please refer to Figures 1 and 2, where Figure 1 is a perspective view of the assembly of the first embodiment of the present invention, and Figure 2 is a perspective view of the base unit 2 assembled to the thermally conductive connector 3 of the first embodiment of the present invention. Schematic. The present invention provides a light projection device U having a modular base unit 2. The light projection device U includes an opto-mechanical assembly 1, a base unit 2, a heat conduction connector 3 and a heat dissipation unit 4. Wherein, the light projection device U is fixed to the lamp holder structure (not shown in the figure) of the lighting device through the base unit 2. Specifically, the light projection device U in this embodiment is fixed to the lamp holder structure of the vehicle lamp through the base unit 2.

In addition, the base unit 2 includes a main body 21 and at least one positioning lug 22. The main body 21 is provided with a mounting hole 211, and the optical-mechanical assembly 1 is integrated with the base unit 2 through the mounting hole 211. The specific assembly method and structural details will be described in detail later. The positioning lug 22 is provided on the periphery of the main body 21. When the light projection device U is fixed to the lamp holder structure through the base unit 2, the positioning lug 22 will match the configuration of the positioning recess in the lamp holder structure to make the base The socket unit 2 is mutually positioned with the lamp socket structure through the positioning lug 22. For example, if you want to install a lamp that is compatible with H7 bulbs In the seat structure, the base unit 2 with a single positioning lug 22 should be selected. However, in this embodiment, the base unit 2 has three positioning lugs 22, and this base unit 2 can not only be mounted to The lamp holder structure adapted to the H4 specification bulb can also be adapted to the lamp holder structure similar to the H4 specification bulb, the details of which will be further detailed later.

The optical-mechanical assembly 1 and the heat dissipation unit 4 of the light projection device U are thermally connected to the heat-conducting connector 3. In other words, the optical-mechanical assembly 1 is thermally connected to the heat-dissipating unit 4 through the heat-conducting connector 3. Wherein, the optical machine assembly 1 is arranged at the first end of the thermally conductive connecting piece 3, and the heat dissipation unit 4 is detachably arranged at the second end of the thermally conductive connecting piece 3. Through the foregoing arrangement, the thermal energy generated during the operation of the optical-mechanical assembly 1 can be transferred to the heat dissipation unit 4 through the thermally conductive connector 3, so that the operating temperature of the optical-mechanical assembly 1 can be reduced.

The base unit 2 of the present invention is installed on the thermally conductive connector 3 from the second end of the thermally conductive connector 3. In other words, the second end of the thermally conductive connector 3 passes through the mounting hole 211 of the base unit 2 so that the base unit 2 can be assembled to the thermally conductive connector 3 interchangeably. Specifically, in this embodiment, a limiting protrusion 31 is provided on the outer surface adjacent to the first end of the thermally conductive connector 3, and at least one gasket 5 is sleeved on the outer surface of the thermally conductive connector 3. When the base unit 2 is assembled from the second end of the thermally conductive connector 3 to the thermally conductive connector 3, the main body 21 of the base unit 2 abuts against the gasket 5, and the gasket 5 abuts against the limiting protrusion 31. In other words, the base unit 2 indirectly abuts against the limiting protrusion 31 by abutting against the washer 5.

Due to the design differences of different lamp holder structures, the reflection structure P in the lamp holder structure is also slightly different in shape and structure. More importantly, in order to adapt to different lamp holder structures, the high beam source and the reflection structure must be adjusted appropriately The angle and distance between P. Among them, in order to enable the high beam source and the reflecting structure P to accurately match each other in distance after replacing the different base units 2 and installing them to different lamp holder structures, the present invention can adjust the number of turns of the gasket 5 Or, change the distance between the high beam source and the reflecting structure P by using gaskets of different thicknesses. In other words, the base unit 2 and the limit At least one gasket 5 with different turns or thickness can be arranged between the convex parts 31 to change the distance between a light-emitting unit of the optical-mechanical assembly 1 and the reflective structure P.

Next, the details of the assembly between the components of this embodiment are further described with reference to FIGS. 3 to 5. Please refer to FIGS. 3 to 5 in conjunction with FIG. 2. FIG. 3 is a perspective view of the connection relationship between the thermally conductive connector 3 and the thermally conductive interface unit 11 of the present invention. 4 is a three-dimensional schematic diagram of the connection relationship between the components of the optical-mechanical assembly 1 of the present invention. FIG. 5 is another three-dimensional schematic diagram of the connection relationship between the components of the optical-mechanical assembly 1 of the present invention. The optical machine assembly 1 of the present invention further includes a thermal interface unit 11, a carrying unit 12, a reflecting unit 13, a lens unit 14, and a light emitting unit (including a first light emitting structure 111 and a second light emitting structure 112). Please refer to FIG. 4 first to illustrate the connection relationship between the thermally conductive connector 3 and the thermally conductive interface unit 11. As mentioned earlier, the optical-mechanical component 1 is thermally connected to the first end of the thermally conductive connecting member 3. Specifically, one end of the thermal interface unit 11 of the optical-mechanical component 1 is fixed to the first end of the thermally conductive connector 3 and is thermally connected to the first end of the thermally conductive connector 3. In this embodiment, the heat conduction connector 3 includes a first half heat dissipation post 301 and a second half heat dissipation post 302, and the heat conduction interface unit 11 is clamped to the heat conduction connector by the first half heat dissipation post 301 and the second half heat dissipation post 302. The first end of 3. In this embodiment, the limiting protrusion 31 is composed of a first half limiting protrusion 311 provided on the first half heat dissipation pillar 301 and a second half limiting protrusion 312 provided on the second half heat dissipation pillar 302. However, the present invention is not limited to each other. It is also possible to provide a structure for the base unit 2 to abut only partially.

The light-emitting unit includes a first light-emitting structure 111 (in this embodiment, a low-beam light source) disposed on the first surface of the heat-conducting interface unit 11, and a second light-emitting structure 112 disposed on the second surface of the heat-conducting interface unit 11 (In this embodiment, the high-beam light source), the thermal interface unit 11 has the function of a circuit board, so that the first light-emitting structure 111 and the second light-emitting structure 112 can receive the power provided by the power supply terminal to provide illumination Features. During the operation of the opto-mechanical assembly 1, the heat generated by the first light-emitting structure 111 or the second light-emitting structure 112 will be transferred to the heat dissipation unit 4 through the thermal interface unit 11 and the thermally conductive connector 3.

Please refer to Figure 3 and Figure 4. From another aspect, the thermally conductive connector 3 of the present invention is sequentially divided into a first section 3A, a second section 3B, and a third section 3C from the first end to the second end. In this preferred embodiment, the thermally conductive interface unit 11 is clamped to the first section 3A of the thermally conductive connector 3. More specifically, in this embodiment, the thermally conductive connector 3 is provided with a thermally conductive interface unit accommodating groove 32 inside the first section 3A, which corresponds to the thermally conductive interface unit accommodating groove 32, and respectively dissipates heat in the first half. Corresponding positions of the pillar 301 and the second half heat dissipation pillar 302 are provided with a coupling protrusion 321 and a coupling hole 322, so that the coupling protrusion 321 and the coupling hole 322 cooperate with each other to make the first half heat dissipation pillar 301 and the second half heat dissipation The pillar 302 and the thermal interface unit 11 are combined into one body. On the other hand, in order to avoid the deflection of the third section 3C, an angle fixing post 35 is further provided inside the thermally conductive connecting piece 3 farther from the first section 3A. In this embodiment, the angle fixing post 35 is arranged at The inside of the second section 3B, but the present invention is not limited to this. In the thermally conductive connector 3 of this embodiment, two thermally conductive pads 331 and 332 are also provided.

In conclusion, the thermal interface unit accommodating groove 32 of this embodiment is opened on the inner side surface of the first half heat dissipation column 301, but the present invention is not limited to this. In the process of assembling the thermally conductive interface unit 11 and the thermally conductive connector 3, two thermally conductive pads 331 and 332 are respectively disposed on the first surface and the second surface of the thermally conductive interface unit 11, and the thermally conductive interface unit 11 and The two thermally conductive pads 331 and 332 are put into the thermally conductive interface unit accommodating groove 32 together. By providing two thermally conductive pads 331 and 332, not only can the assembly of the thermally conductive interface unit 11 and the thermally conductive connector 3 be more stable, but also the efficiency of heat energy transfer can be improved.

In conclusion, the aforementioned limiting protrusion 31 is provided at the junction of the second section 3B and the first section 3A, but the actual implementation is not limited to this. In this embodiment, the second section 3B has a wiring channel 34 inside, so that the first light-emitting structure 111 and the second light-emitting structure 112 provided in the thermal interface unit 11 can pass through the wiring channel 34. The line (not drawn in the figure) is electrically connected to the power supply terminal. In this embodiment, the outer surface of the third section 3C is provided with an external thread 36, An internal thread 41 is provided inside the element 4, and the external thread 36 and the internal thread 41 are screwed to each other, so that the heat dissipation unit 4 can be detachably mounted to the third section 3C. Since the heat dissipation unit 4 is detachably mounted on the heat conduction connector 3, when the base unit 2 needs to be replaced, only the heat dissipation unit 4 needs to be removed from the heat conduction connector 3, and then the heat conduction connector 3 The base unit 2 is taken out from the second end of 3, which is very convenient in the operation of the replacement operation, which is helpful for the design purpose of the modular adaptation of the present invention.

Next, please refer to FIG. 4 and FIG. 5 to illustrate the connection relationship between the components of the optical machine assembly 1. The carrying unit 12 is disposed on the thermally conductive interface unit 11, and the first optical positioning structure 113 of the thermally conductive interface unit 11 and the second optical positioning structure 121 of the carrying unit 12 match each other, so that the thermally conductive interface unit 11 and the carrying unit 12 are mutually positioned. Specifically, one end opposite to the thermally conductive interface unit 11 is fixed to the thermally conductive connector 3, and a first optical positioning structure 113 is provided adjacent to the other end of the thermally conductive interface unit 11. On the other hand, the second optical positioning structure 121 is arranged at one end of the carrying unit 12, and when the thermally conductive interface unit 11 and the carrying unit 12 are assembled into one body, the first optical positioning structure 113 of the thermally conductive interface unit 11 and the carrying unit 12 The configuration of the second optical positioning structure 121 is matched with each other to stabilize the relative position between the thermal interface unit 11 and the carrying unit 12. More specifically, in this embodiment, the bottom of the carrying unit 12 is provided with a heat-conducting interface unit installation groove 122, so that the end of the heat-conducting interface unit 11 away from the heat-conducting connector 3 can be installed into it, and the second optical positioning structure 121 It is arranged at a position corresponding to the thermal interface unit mounting groove 122 to match the first optical positioning structure 113 of the thermal interface unit 11 installed therein.

The reflecting unit 13 and the lens unit 14 are both arranged on the carrying unit 12, and the light emitted by the first light emitting structure 111 is reflected by the reflecting unit 13 and then passes through the lens unit 14 to provide illumination. Since the thermally conductive interface unit 11 and the carrying unit 12 have been mutually positioned through the matching of the first optical positioning structure 113 and the second optical positioning structure 121, the first light-emitting structure 111 on the thermally conductive interface unit 11 and the carrying unit 12 are also stabilized. The relative position between the reflecting unit 13 and the lens unit 14, so Able to achieve the effect of optical positioning.

It is worth mentioning that, in this preferred embodiment, the reflecting unit 13 and the lens unit 14 are both mounted on the carrying unit 12 by means of thermal welding. The characteristic of this combination is that it is compared with the use of a lock. The solid method combines the reflecting unit 13 and the carrying unit 12 with each other, and the thermal fusion method requires a smaller area on the carrying unit 12. Therefore, on the one hand, the use of thermal fusion bonding is conducive to the miniaturization of the overall device; on the other hand, when the carrying unit 12 of the same size is used, the reflecting unit 13 is joined by thermal fusion. The design of the reflecting surface of the reflecting unit 13 can be maximized, which is beneficial to improve the overall brightness of the light. For the same reason, arranging the lens unit 14 on the carrying unit 12 by thermal fusion is also beneficial to the miniaturization of the device. Of course, the above descriptions are only preferred embodiments of the present invention. In other embodiments of the present invention, the reflecting unit 13 and the lens unit 14 can also be fixed in other ways.

On the other hand, in a preferred embodiment of the present invention, the light projection device U further includes a supporting member 6 for clamping the carrying unit 12 and the thermally conductive connecting member 3. In this embodiment, the support 6 includes an upper support member 61 and a lower support member 62. One end of the upper support member 61 and one end of the lower support member 62 together clamp one end of the carrying unit 12, the other end of the upper support member 61 and The other end of the lower support member 62 is the first end that clamps the thermally conductive connector 3 together. The upper supporting member 61 and the lower supporting member 62 together form the supporting member 6, so that the carrying unit 12 and the thermally conductive connecting member 3 are firmly combined into one body, and the structural stress received by the light projection device U on the structure can also be determined by The support 6 formed by the upper support member 61 and the lower support member 62 can bear it, without the thermal interface unit 11 being affected by external stress, so as to achieve "the separation of the components of the heat conduction path and the load structure bearing the external force" Technical effect.

It should be particularly noted here that, in the preferred embodiment of the present invention, the thermal conductivity of the thermal interface unit 11 is higher than that of the thermally conductive connector 3 and the carrying unit 12. Thermal conductivity (also known as heat transfer coefficient (k), Heat Transfer Coefficient), the unit is W/mK, the thermal conductivity formula is k=(Q/t)×L/(A×T), where k is the thermal conductivity , Q is heat, t Is time, L is length, A is area, and T is temperature difference. More specifically, in this embodiment, the thermal conductivity of the thermal interface unit 11 is higher than the thermal conductivity of the thermally conductive connector 3, and the thermal conductivity of the thermally conductive connector 3 is higher than the thermal conductivity of the carrier unit 12. In terms of the selection of specific materials, the material of the thermal interface unit 11 is preferably copper, the heat conduction connector 3 is preferably aluminum or aluminum alloy, and the carrying unit 12 is preferably a plastic material.

In addition, it should be particularly noted that in the preferred embodiment of the present invention, in terms of structural strength, the structural strength of the thermally conductive connector 3 is the highest, followed by the thermal interface unit 11, and then the carrying unit 12. The structural strength mentioned here mainly refers to the strength index, and the stiffness of the material can also be considered comprehensively. Among them, strength refers to the ability of a part to resist fracture or residual deformation exceeding the allowable limit after being loaded. In detail, the so-called strength is an important index to measure the carrying capacity of the part itself (that is, the ability to resist failure), and it is also the basic requirement that the mechanical parts should meet first. The generally referred to as strength includes static strength, fatigue strength (bending fatigue and contact fatigue, etc.), fracture strength, impact strength, high and low temperature strength, strength under corrosive conditions, creep, bonding strength and other detailed evaluation items. The experimental study of strength is a comprehensive study, mainly through its stress state to study the stress status of components and predict the conditions and timing of failure. On the other hand, stiffness refers to the ability of a part to resist elastic deformation under load. The rigidity (or rigidity) of a part is usually expressed by the force or moment required for unit deformation. The magnitude of the rigidity depends on the geometry of the part and the type of material (ie, the elastic modulus of the material). The rigidity requirement is particularly important for parts that will affect the working quality of the machine after the elastic deformation exceeds a certain value, such as the spindle, guide rail, and lead screw of the machine tool. In the material selection of the present invention, since the structural stress is mainly carried by the thermally conductive connector 3, materials with higher strength are selected to make the thermally conductive connector 3. The specific selection criteria can be determined by those with ordinary knowledge in the technical field in this specification. Under the instruction, the appropriate material should be selected based on the rigidity of the material.

Incidentally, in this embodiment, when the upper supporting member 61 and the lower supporting member 62 are locked to the carrying unit 12 by the screw S, the screw S will deform the second optical positioning structure 121, thereby causing the first optical The positioning structure 113 and the second optical positioning A tight fit is formed between the positioning structures 121, so that the combination between the thermal interface unit 11 and the carrying unit 12 becomes more stable, thereby having a more excellent optical positioning effect.

On the other hand, please refer to FIG. 6, which is a schematic diagram of the connection relationship between the optical-mechanical component and the thermally conductive connector according to one embodiment of the present invention. In this embodiment of the present invention, the optical-mechanical assembly 1'of the light projection device U is directly fixed to the thermally conductive connecting member 3. Specifically, the carrying unit 12' of the opto-mechanical component 1'has an extension fixing portion 123, and the extension fixing portion 123 is fixed at the first end of the thermally conductive connector 3, so that the bearing unit 12 and the thermally conductive connector 3 are combined into a single unit. And bear the structural stress received by the structure of the light projection device. In actual application, the extension fixing portion 123 can be fixed to the thermally conductive connecting member 3 by direct screwing or mechanical bonding. Since the thermally conductive connector 3 (referring to the carrying unit 12, the thermally conductive interface unit 11 and the thermally conductive connector 3) has the highest structural strength, the thermally conductive connector 3 bears the gravity load of the optical machine assembly 1. In addition, the thermal conductivity of the thermal interface unit 11 is the best of the three. Therefore, heat can be directly transferred from the thermal interface unit 11 to the thermally conductive connector 3. This type of design concept can also be included in the "components and bearing of the thermal conduction path" The technical effect of the separation of the load structure of the external force.

Incidentally, the opto-mechanical assembly 1 of this embodiment is also provided with a hood 15 to shield excess light through the hood 15 to prevent the excess light from affecting the vision of oncoming vehicles when the low beam lighting is turned on. .

Next, under the modular design of the present invention, how to adjust the light pattern of the light emitted by the light projection device U and adjust the projection angle of the light emitted by the light projection device U according to different lamp holder structures is further explained. Please refer to FIGS. 7-10. FIG. 7 is a schematic diagram of one of the light projections of the light-emitting unit of the present invention. FIG. 8 is a three-dimensional schematic diagram of the base unit of the first embodiment of the present invention. FIG. 9 is another schematic diagram of light projection of the light-emitting unit of the present invention. Fig. 10 is a schematic front view of the base unit through a section.

Please refer to FIG. 7, in this embodiment, the base unit 2 is used to position the opto-mechanical assembly 1 on the lamp holder structure of the lighting device, and the first light emitting structure 111 emits L1 is reflected by the reflection unit 13 and passes through the lens unit 14 to provide low-light illumination; on the other hand, the light L2 emitted by the second light-emitting structure 112 is first irradiated to the reflection structure P on the lamp holder structure of the lighting device , And then through the reflection of the reflective structure P to provide far light illumination. In view of the lamp holder structure applicable to different lamp types, the subtle structure will be slightly different. The specific difference may be reflected in two main situations:

(1) The light type of the low beam with cut-off line. For example, the low-beam light type regulated by the European ECE R112 regulations is a light type with no tilt angle up and down and no tilt left and right for the light axis of the car. However, if the optical axis of the light projection device U is slightly different from the light axis of the car light, it may affect the low-beam light type of the light projection device U, resulting in up and down tilt and/or left and right tilt. In this case, it is necessary to cast the light An adjustment mechanism is provided on the device U for fine adjustment.

(2) The relative position of the high beam light source and the reflective structure P. This difference is mainly reflected in the distance between the high-beam light source and the reflective structure P. In order to enable the high-beam light source to be correctly located at the focal point of the reflective structure P, so as to provide a good condensing effect, it is necessary to A distance adjustment mechanism is provided on the projection device U so that the high beam light source can be adjusted.

It can be seen from the above description that even if the present invention adopts the replaceable base unit 2, it can simply replace the base unit 2, so that the opto-mechanical assembly 1 of the light projection device U can be installed to lamps of different lamp models. In terms of the base structure, in order to make the projected light type meet the specification requirements, it is still necessary to fine-tune the angle or distance of the light projection device U relative to the reflective structure P.

Next, please refer to FIG. 8. As previously described, the base unit 2 is provided with at least one positioning lug 22. It should be further explained that the positioning lug 22 of the present invention is provided with a light adjustment hole 221. In this embodiment, the base unit 2 has three positioning lugs 22, and each positioning lug 22 is provided with a light-shaped adjustment hole 221. The aforementioned structural design can mainly be matched with a lamp holder structure suitable for H4 or similar specifications.

It should be noted here that, in this embodiment, the periphery of the main body 21 is also recessed with two fitting notches 213. The main purpose of this structural design is to enable this embodiment The base unit 2 of the example is directly applied to the lamp holder structure of the H17 specification (that is, one of the car lights similar to the H4 specification, but the present invention is not limited to this model) lamp holder structure, and does not have to be specific to the car of different specifications. The lamp holder structure replaces different base units 2 repeatedly.

Returning to this embodiment, please refer to FIGS. 7 to 9 together. The light shape adjustment hole 221 is used for the adjustment member (screw S in this embodiment, but not limited to this) to pass through and press against the lamp holder structure of the lighting device. In the embodiment shown in FIG. 7 and FIG. 9, the screw S is pressed against the back of the reflective structure P as a schematic diagram for illustration, but in actual implementation, it may also be against other structures of the car body , I will explain here first. In the state of FIG. 7, the screw S is not completely locked into the light adjustment hole 221, therefore, the base unit 2 is evenly pressed against the back of the reflective structure P; on the contrary, in the state of FIG. 9, because The screw S is completely locked into the light adjustment hole 221. Therefore, the screw S abuts against the back of the reflective structure P, so that the upper half of the base unit 2 is lifted, and the base unit 2 itself is only close to the bottom end. Lie against the back of the reflective structure P. In the state of FIG. 9, the entire light projection device U will be inclined with the base unit 2, and the front end of the light projection device U (referring to the end where the lens unit 14 is located) is lifted up, thus changing the first The relative angle between the light emitting structure 111 and the illuminated object (generally referred to as the road surface). In other words, the depth of the light shape adjustment hole 221 can be locked by the adjustment screw S, so that the low beam light pattern projected by the first light-emitting structure 111 rises accordingly, so that the light shape adjustment effect can be achieved; that is, The adjusting member is locked into the depth of the light shape adjusting hole 221 or against the reflective structure P to change the distance between the light shape adjusting hole 221 and the reflective structure P, and the deflection angle of the light projection device U, thereby changing The type of light projected by the light-emitting unit. Incidentally, through this adjustment method, the relative angle and distance between the second light-emitting structure 112 and the reflective structure P can also be changed to fine-tune the high beam line.

Although the above description mainly takes the light-shaped adjustment hole 221 above the drawing as an example, the invention is not limited to this. Please refer to Figure 8, because this embodiment Each of the three positioning lugs 22 is provided with light adjustment holes 221. Therefore, the screws S located in other light adjustment holes 221 can also be adjusted to change the left-right deflection angle of the light projection device U. The light type projected by the light emitted by the first light emitting structure 111 is changed. Because four-wheeled vehicles usually need to be adjusted appropriately for the light patterns of the left and right side lights (whether it is to pursue the left and right consistency, or adjust to a slightly zigzag shape to avoid affecting the driving of the oncoming vehicle), at this time, use The technical solution provided by the present invention will be able to conveniently adjust the light type that complies with the ECE R112 lighting regulations.

On the other hand, please refer to FIG. 10, in this embodiment, the main body 21 further has a sleeve portion 212 protruding along the axial direction of the mounting hole 211. The thermally conductive connector 3 passes through the mounting hole 211 and is sleeved in the sleeve portion 212, and at least one angle adjustment hole 212A is opened on the wall surface of the sleeve portion 212. When the light projection device U is applied to car lights, according to the corresponding different car models and different lamp holder structures, it is based on the direction of gravity (refers to the vertical direction perpendicular to the optical axis, that is, the dashed line in the vertical direction as shown in the figure. The installation angle of the axis) will be slightly different. For example, in the application of a two-wheeled motorcycle, it is generally 0 degrees, and some models are 4.5 degrees, 7.5 degrees or other deflection angles; in the application of a four-wheeled vehicle, it is generally 0 degrees. In view of this, in order to cope with these differences, the present invention is provided with an angle adjustment hole 212A on the wall surface of the sleeve portion 212. The sleeve portion 212 of this embodiment is provided with two angle adjustment holes 212A. One of the angle adjustment holes 212A corresponds to the angle of the positioning lug 22 at 0 degrees, and the other angle adjustment hole 212B corresponds to the angle of the positioning lug 22. θ is 7.5 degrees. When installing the light projection device U, the user can appropriately rotate the deflection angle of the light projection device U with the optical axis as the axis according to the corresponding car model and lamp holder structure, change the angle between it and the direction of gravity, and selectively The angle adjustment hole 212A or the angle adjustment hole 212B is used for locking to achieve the purpose of angle adjustment.

In summary, because in this preferred embodiment, not only can the base unit 2 with a different structure be easily replaced, but also the number of washers 5, the screw S in the light-shaped adjustment hole 221, and the locked angle adjustment hole 212A can be used. Angle to light projection device U The degree and distance are fine-tuned. Therefore, through the overall modular design, the light projection device U of the present invention can be widely matched and applied to different types of lamp holder structures.

[Second Embodiment]

The following describes the technical details of the second embodiment of the present invention by referring to FIGS. 11 to 15. The following content mainly describes the differences between the second embodiment and the first embodiment in more detail. For the parts not described in detail below, please refer to the content of the first embodiment. It should be particularly noted that although this specification mainly uses the first embodiment and the second embodiment to illustrate the main concepts of the present invention, the present invention is not limited to the technical solutions specifically described in the first and second embodiments. In particular, Those with ordinary knowledge in the technical field can adjust the existing base unit according to the technical content disclosed in this specification to achieve the purpose of modular adaptation of the invention, and the aforementioned modifications should obviously be considered as covered by the invention. Within the scope of protection.

First, please refer to FIG. 11 and FIG. 12. FIG. 11 is a three-dimensional assembly diagram of the second embodiment of the present invention. Fig. 12 is a perspective schematic view of the base unit assembled to the thermally conductive connector according to the second embodiment of the present invention. In the second embodiment of the present invention, the light projection device U'also includes an optical-mechanical assembly 1, a base unit 2, a thermally conductive connector 3, and a heat dissipation unit 4. Different from the first embodiment, the base unit 2'with a single positioning lug 22' is selected in this embodiment.

On the other hand, since the H7 type car lights are generally used, the distance between the center of the high beam filament and the reflecting structure P (more specifically, the distance between the high beam filament and the main body 21) is 22.95mm ( millimeter, millimeter), and H4 model car lights or similar to the H4 model car lights, the gap between them is about 1.6mm (H4 model car lights, the distance between the center of the high beam filament and the reflective structure P is 24.55mm, H17 The car lamp of the model and HS1 car lamp is 24.8mm). This gap can be adjusted and calibrated by changing the number of washers 5 on the thermally conductive connector 3 or the thickness of the washers. Compared with the first embodiment using one washer 5, in this embodiment two Washer 5. It is important to mention that, because the present invention adjusts the distance by changing the number or thickness of the 5 washers according to the type of light bulb matched, when the present invention is applied to HB3A or HB4A models, it will be changed accordingly. As for other models of car lights, those with ordinary knowledge in the art can freely refer to the contents disclosed in this manual and make corresponding adjustments according to the manual. I will not list them all here. Repeat.

Next, please refer to FIGS. 13 to 15. FIG. 13 is a perspective view of a base unit according to a second embodiment of the present invention. 14 is a schematic diagram of one of the light projections of the light-emitting unit according to the second embodiment of the present invention. 15 is another schematic diagram of light projection of the light emitting unit according to the second embodiment of the present invention. This part is similar to the first embodiment in that the angle of the light projection device U is changed by adjusting the screw S located in the angle adjustment hole 212A', thereby changing the light projected by the second light emitting structure 112 Light type. It should be noted that, since the base unit generally used in car lights similar to the H7 model has only one positioning lug 22', it is mainly through the light adjustment hole 221' opened in the positioning lug 22' , Adjust the yaw angle in one direction. Incidentally, in this embodiment, the main body 21' of the base unit 2'also has a sleeve portion 212' protruding along the axial direction of the mounting hole 211', and the wall surface of the sleeve portion 212' An angle adjustment hole 212A' is also provided. As mentioned earlier, when installing the light projection device U, the user can first appropriately rotate the deflection angle of the light projection device U'with the optical axis as the axis according to the corresponding car model and lamp holder structure, and then pass the angle adjustment hole 212A 'Lock it to change the angle between the light projection device U'and the direction of gravity, thereby achieving the purpose of angle adjustment.

[Beneficial effects of the embodiment]

One of the beneficial effects of the present invention is that the light projection device and its base unit provided by the embodiments of the present invention can utilize the technical solution of “the positioning lug is provided with a light-shaped adjustment hole”, and can achieve “adaptation” Various types of lamp holder structure to carry out the technical effect of light shape adjustment.

In addition, the technical solution of “the base unit is replaceably assembled to the heat-conducting connector” can also be used to achieve the technical effect of “freely selecting a suitable base unit according to the inserting structure of the lamp holder structure of different models”.

Furthermore, the technical solutions of "the base unit is against at least one gasket, and at least one gasket against the limiting protrusion" and "change the number of gaskets 5" can also be used to achieve "adjustment of high beams". The technical effect of the distance between the center of the filament and the reflective structure P".

On the other hand, it is also possible to use the technical solution of “the peripheral edge of the main body 21 is recessed with two fitting notches 213” to integrate the structure of the base unit 2 of similar models of car lights, and achieve “no need to repeatedly replace different bases Unit 2" technical effect.

Furthermore, the present invention can also use the technical solution of "the peripheral edge of the main body 21 is recessed with two adapting notches 213" to integrate the structure of the base unit 2 of similar models of car lights, and achieve "no need to repeatedly replace different The technical effect of the base unit 2".

The content disclosed above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the present invention. Therefore, all equivalent technical changes made using the content of the description and drawings of the present invention are included in the protection scope of the present invention. Inside.

U: Light projection device

1: Optical machine components

2: base unit

21: Main body

211: mounting hole

22: positioning lug

212: Sleeve

213: Adaptation gap

3: Thermal connection

31: Limit convex

36: external thread

4: Cooling unit

41: Internal thread

5: Washer

6: Support

Claims (21)

A light projection device with a modular base unit, comprising: an optomechanical assembly, the optomechanical assembly includes a light emitting unit; a base unit, the base unit is used to position the optomechanical assembly In terms of a lamp holder structure, the base unit includes a main body and at least one positioning lug provided on the periphery of the main body. The main body is provided with a mounting hole, and the positioning lug is provided with a light Shape adjustment hole; a thermally conductive connector, a first end of the thermally conductive connector is thermally connected to the optical machine component, and a limiting protrusion is provided on the outer surface of the first end adjacent to the thermally conductive connector Part, a second end of the thermally conductive connecting piece passes through the mounting hole of the base unit, so that the base unit is replaceably assembled to the thermally conductive connecting piece, and the base The main body portion of the unit abuts against the limiting protrusion; and a heat dissipation unit, the heat dissipation unit is detachably disposed on the second end of the heat conduction connector, and is thermally connected to the heat conduction connector Connection; wherein the light shape adjustment hole is used for an adjustment piece to pass through; wherein the light projection device is locked into the light shape adjustment hole by the adjustment piece to change the light shape Adjusting the distance between the hole and a reflection structure of the lamp holder structure and the deflection angle of the light projection device, thereby changing the light type projected by the light emitting unit. The light projection device according to claim 1, wherein the base unit abuts against at least one gasket, and at least one gasket abuts against the limiting protrusion; wherein, the base unit and The distance between a light-emitting unit of the opto-mechanical assembly and the reflective structure is changed by arranging at least one washer with different turns or thickness between the limiting protrusions. The light projection device according to claim 1, wherein the main body portion is provided with a sleeve portion protruding along the axial direction of the mounting hole, and the heat conduction connecting member passes through the mounting hole. The sleeve is fitted with a hole and is sleeved in the sleeve portion, and at least one angle adjustment hole is opened on the wall surface of the sleeve portion. The light projection device according to claim 1, wherein the base unit has three positioning lugs, and each of the positioning lugs is provided with the light-shaped adjustment hole. The light projection device according to claim 4, wherein the periphery of the main body portion is recessed with two fitting notches. The light projection device according to claim 1, wherein the opto-mechanical assembly further includes: a heat-conducting interface unit, one end of the heat-conducting interface unit is thermally connected to the first end of the heat-conducting connector, A first optical positioning structure is provided adjacent to the other end of the thermally conductive interface unit; a carrying unit, one end of the carrying unit is provided with a second optical positioning structure, and the carrying unit is provided on the thermally conductive interface unit , And the second optical positioning structure and the first optical positioning structure are matched with each other, so that the carrying unit and the thermally conductive interface unit are mutually positioned; a reflecting unit, the reflecting unit is disposed on the carrying unit And a lens unit, the lens unit is disposed on the carrying unit; wherein, the light-emitting unit includes a first light-emitting structure disposed on the first surface of the heat-conducting interface unit and disposed on the heat-conducting interface unit A second light-emitting structure on the second surface of, wherein the light emitted by the first light-emitting structure passes through the lens unit after being reflected by the reflecting unit. The light projection device according to claim 6, wherein the reflecting unit is disposed on the carrying unit by means of thermal fusion. The light projection device according to claim 6, wherein the lens unit is disposed on the carrying unit by means of thermal fusion. The light projection device according to claim 6, wherein the thermal interface unit has The function of the prepared circuit board. The light projection device according to claim 6, wherein the thermal conductivity of the thermal interface unit is higher than the thermal conductivity of the thermally conductive connector. The light projection device according to claim 6, wherein the structural strength of the thermally conductive connector is higher than the structural strength of the thermally conductive interface unit and the structural strength of the carrying unit. The light projection device according to claim 6, wherein the heat conduction connecting member includes a first half heat dissipation column and a second half heat dissipation column, and the heat conduction interface unit is formed by the first half heat dissipation column and the second half heat dissipation column. The two halves of the heat dissipation column are clamped together on the first end of the thermally conductive connecting piece. The light projection device according to claim 6, wherein the thermally conductive connecting member is sequentially divided into a first section from the first end to the second end, and the first section is clamped The heat conduction interface unit; a second section with a wiring channel inside the second section, and the limiting protrusion is disposed at the junction of the second section and the first section; And a third section, the outer surface of the third section is provided with an external thread, and the heat dissipation unit cooperates with the external thread to be screwed on the third section. The light projection device according to claim 6, further comprising a support member for bearing the structural stress received by the structure of the light projection device, the support member includes an upper support member and a lower support member, the One end of the upper support member and one end of the lower support member jointly clamp one end of the carrying unit, and the other end of the upper support member and the other end of the lower support member jointly clamp all the heat conduction connectors. The first end. The light projection device according to claim 6, wherein the bearing unit has an extension fixing portion, and the extension fixing portion is fixed to the first end of the heat conduction connecting member, so that the bearing unit and The thermally conductive connecting piece is combined into a single And bear the structural stress received by the structure of the light projection device. A base unit is applied to a light projection device, and the base unit is used to position an opto-mechanical component of the light projection device on a lamp holder structure of a lighting device, and the base unit The base unit includes: a main body part, the main body part defines a mounting hole through which the opto-mechanical component is combined with the base unit into a single component; and at least one positioning lug, the positioning protrusion The ears are arranged on the periphery of the main body, the base unit is mutually positioned with the lamp holder structure through the positioning lugs, and a light-shaped adjustment hole is opened on the positioning lugs; wherein, the light-shaped The adjustment hole is used for an adjustment piece to pass through; wherein, the base unit is locked into the depth of the light shape adjustment hole by the adjustment piece to change the light shape adjustment hole and the lamp holder structure The distance between a reflective structure and the deflection angle of the light projection device further change the light type projected by a light emitting unit of the light projection device. The base unit according to claim 16, wherein the main body portion is provided with a sleeve portion protruding along the axial direction of the mounting hole, and the thermally conductive connecting member passes through the mounting hole and is sleeved on the In the sleeve portion, at least one angle adjustment hole is opened on the wall surface of the sleeve portion. The base unit according to claim 16, wherein the base unit has three positioning lugs, and each of the positioning lugs is provided with the light-shaped adjustment hole. The base unit according to claim 18, wherein the peripheral edge of the main body portion is recessed with two fitting notches. The base unit according to claim 16, wherein the opto-mechanical component is thermally connected to a heat dissipation unit through a thermally conductive connector, and the base unit is replaceably assembled to the thermally conductive connector to communicate with The optical machine assembly is combined into the single component. The base unit according to claim 16, wherein a limiting protrusion is provided on the outer surface of the thermally conductive connector, the base unit abuts on at least one gasket, and at least one gasket abuts In the limiting protrusion; wherein, between the base unit and the limiting protrusion, at least one washer with a different number of turns or thickness is provided to change the optomechanical component The distance between the light-emitting unit and the reflective structure.

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