CN108429036A - Plug-assembly, compressor starter and compressor assembly - Google Patents

Abstract

The invention discloses a plug assembly, a compressor starter and a compressor assembly. The plug assembly includes a plug body and at least one connecting column, at least one installation through hole is formed on the plug body, and the connecting column is passed through the One end of each connecting column is located in the installation through hole so as to be suitable for plugging and connecting with the terminal of the compressor, and the other end of each connecting column extends beyond the installation through hole. holes for connection to the control board. According to the plug assembly of the present invention, the structure is simple, and when the plug assembly is applied to a compressor starter, the connection between the compressor starter and the compressor is facilitated and the connection is reliable.

Description

Plug Assemblies, Compressor Starters and Compressor Assemblies

technical field

The invention relates to the technical field of compressors, in particular to a plug assembly, a compressor starter and a compressor assembly.

Background technique

Compressors are becoming more and more efficient, and are developing in the direction of simple and reliable installation. In related technologies, most refrigerator compressors use common starters and protectors to start and protect the compressors. Common starters have a power consumption of about 2.2W. In order to reduce power consumption, some manufacturers have begun to use electronic starters. However, , the connection between the electronic starter and the compressor is relatively cumbersome.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to propose a plug assembly, the plug assembly is simple in structure, when the plug assembly is applied to the compressor starter, the connection between the compressor starter and the compressor is facilitated, and the connection is reliable .

Another object of the present invention is to provide a compressor starter having the above-mentioned plug assembly.

Another object of the present invention is to provide a compressor assembly having the above-mentioned compressor starter.

The plug assembly according to the embodiment of the first aspect of the present invention includes: a plug body, at least one installation through hole is formed on the plug body; One end of each of the connecting posts is located in the installation through hole to be suitable for plugging connection with the terminal of the compressor, and the other end of each of the connecting posts extends beyond the installation through hole to be suitable for connecting with the control board connected.

According to the plug assembly of the embodiment of the present invention, at least one installation through hole is provided on the plug body, and the connecting post is penetrated in the installation through hole, so that one end of the connecting post is located in the installation through hole, and the other end of the connecting post extends To exceed the installation through hole, so that when the plug assembly is applied to the compressor starter, the above-mentioned one end of the connecting post can be plugged and connected with the terminal of the compressor, and the above-mentioned other end of the connecting post can be connected with the control board of the compressor starter , which facilitates the connection between the compressor starter and the compressor, and ensures the reliability of the connection between the compressor starter and the compressor.

According to some embodiments of the present invention, there are three installation through holes, and the three installation through holes are arranged in a triangle.

According to some embodiments of the present invention, the plug body includes three installation parts spaced apart from each other and arranged in parallel, each of the installation parts is formed with one installation through hole penetrating in the axial direction of the installation part , the three installation parts are connected through three first connecting plates and three second connecting plates, one end of the three first connecting plates is connected and surrounded by the central line of the three mounting parts The inner centers of the triangles formed are coincident, the other ends of the three first connecting plates are connected to the outer peripheral walls of the corresponding mounting parts, and two adjacent mounting parts are connected through the second connecting plate, and The three first connecting plates are located inside the figure enclosed by the three second connecting plates and the three mounting parts.

According to some embodiments of the present invention, the outer contour shape of the cross-section of each of the mounting parts is circular, and each of the second connecting plates is formed as a triangle surrounded by a line connecting the centers of the three mounting parts. The inner concave arc-shaped plate, and each second connecting plate is respectively tangent to the two mounting parts connected thereto.

According to some embodiments of the present invention, each of the first connecting plates is formed as a flat plate.

According to some embodiments of the present invention, the distance between the central axes of two adjacent installation through holes is x, and the x satisfies: x=11.6±0.5mm.

According to some embodiments of the present invention, the connecting column includes a first connecting column and a second connecting column arranged coaxially, the installation through hole includes a first installing hole and a second installing hole arranged coaxially, and the first connecting column A connecting column fits in the first mounting hole, a part of the second connecting column fits in the second mounting hole, and the other part extends beyond the second mounting hole, and the outer circumference of the first mounting hole A wall is located outside the peripheral wall of the second mounting hole.

According to some embodiments of the present invention, both the first installation hole and the second installation hole are formed as circular holes, the diameter of the first installation hole is d, and the d satisfies: d=2.2±0.5mm , the cross-sections of the first connecting column and the second connecting column are adapted to the first mounting hole and the second mounting hole respectively, the outer diameter of the first connecting column is D, and the D satisfies : D=2.2±0.5mm.

According to some embodiments of the present invention, the axial length of the first installation hole is h, and the h satisfies: h=8.5±0.5 mm.

According to some embodiments of the present invention, a stepped portion is formed between the first mounting hole and the second mounting hole, and a groove is formed on the stepped portion, and the groove is annular and surrounds the second mounting hole. Mounting hole settings.

According to some embodiments of the present invention, in the radial direction of the installation through hole, the outer peripheral wall of the groove is flush with the outer peripheral wall of the first installation hole.

According to some embodiments of the present invention, the groove is open towards the first mounting hole.

According to some embodiments of the present invention, the one end of the connecting column is opened to form a slot, and at least one open slot is formed on the peripheral wall of the slot, and the open slot penetrates the peripheral wall of the slot.

According to some embodiments of the present invention, there are two opening slots, and the two opening slots are arranged opposite to each other along the radial direction of the connecting column.

According to some embodiments of the present invention, the one end of the connecting column has a guiding part, and the cross-sectional area of the guiding part first decreases and then increases along the axial direction of the connecting column.

According to some embodiments of the present invention, at least three bosses are provided on a side of the plug body adjacent to the control board, and free ends of the bosses abut against the control board.

According to some embodiments of the present invention, each of the bosses is located on the edge of the plug body.

According to some embodiments of the present invention, the height of each of the bosses is t, and the t satisfies: t≤0.6mm.

The compressor starter according to the embodiment of the second aspect of the present invention includes: a control board, on which a control circuit is provided; a plug assembly, the plug assembly is the plug assembly according to the above embodiment of the first aspect of the present invention, The other end of the connecting post of the plug assembly is connected to the control board.

According to the compressor starter of the embodiment of the present invention, by using the above-mentioned plug assembly, it is convenient to quickly connect the compressor starter to the compressor, and at the same time ensure the reliability of the connection between the compressor starter and the compressor.

The compressor assembly according to the embodiment of the third aspect of the present invention includes: a compressor, the compressor has a terminal; a compressor starter, the compressor starter is the compressor according to the embodiment of the second aspect of the present invention The starter is plugged and connected with the terminal.

According to the compressor assembly of the embodiment of the present invention, by using the above-mentioned compressor starter, the assembly of the compressor assembly is facilitated, and the assembly efficiency of the compressor assembly is improved.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic structural view of a plug assembly according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another angle of the plug assembly shown in Fig. 1;

Figure 3 is an exploded view of the plug assembly shown in Figure 1;

Fig. 4 is a schematic structural view of the plug body shown in Fig. 3;

Fig. 5 is a partial schematic diagram of the plug body shown in Fig. 4;

Figure 6 is a cross-sectional view of the plug body shown in Figure 4;

FIG. 7 is a schematic structural diagram of the connecting column shown in FIG. 4 .

Reference signs:

plug assembly 100,

Plug body 1, installation through hole 10, first installation hole 10a, second installation hole 10b, step portion 10c, groove 10d, installation portion 11, first connecting plate 12, second connecting plate 13, boss 14,

The connecting column 2, the first connecting column 21, the slot 21a, the opening groove 21b, the guide part 21c, the locking piece 211,

The second connecting column 22 and the guiding surface 221 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "inner", "outer", "axial", "radial", "circumferential" etc. is based on the orientation or position shown in the drawings The relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes a plug assembly 100 according to an embodiment of the first aspect of the present invention with reference to FIGS. 1-7 .

As shown in FIGS. 1-7 , a plug assembly 100 according to an embodiment of the present invention includes a plug body 1 and at least one connecting column 2 .

At least one installation through hole 10 is formed on the plug body 1, and the connecting posts 2 are penetrated in the installation through hole 10, and one end of each connecting post 2 is located in the installation through hole 10 so as to be suitable for plugging and connecting with the terminals of the compressor. , the other end of each connecting column 2 extends beyond the installation through hole 10 to be suitable for connecting with the control board.

For example, as shown in Figures 1-7, the installation through-holes 10 can run through both ends of the plug body 1 in the axial direction, and each installation through-hole 10 can be pierced with a connecting column 2, and a part of the connecting column 2 is located in the installation through-hole. In the hole 10, the other part of the connecting column 2 protrudes out of the installation through hole 10, so that when the plug assembly 100 is applied to the compressor starter, the end of the connecting column 2 located in the installation through hole 10 can be connected to the terminal of the compressor. Connected directly, one end of the connecting column 2 outside the installation through hole 10 can be fitted in the installation hole of the control panel of the compressor starter to be fixedly connected with the control panel, which facilitates the connection between the compressor starter and the compressor. connection, while ensuring the reliability of the connection between the compressor starter and the compressor.

According to the plug assembly 100 of the embodiment of the present invention, at least one installation through hole 10 is provided on the plug body 1, and the connection post 2 is penetrated in the installation through hole 10, so that one end of the connection post 2 is located in the installation through hole 10 1. The other end of the connecting column 2 extends beyond the installation through hole 10, so that when the plug assembly 100 is applied to a compressor starter, the above-mentioned one end of the connecting column 2 can be plugged and connected with the terminal of the compressor, and the above-mentioned connecting column 2 The other end can be connected with the control board of the compressor starter, which facilitates the connection between the compressor starter and the compressor, and ensures the reliability of the connection between the compressor starter and the compressor.

In some specific embodiments of the present invention, there are three installation through holes 10 , and the three installation through holes 10 are arranged in a triangle. For example, as shown in FIGS. 1-5 , on the cross-section of the plug assembly 100, the projections of the central axes of two adjacent installation through holes 10 are sequentially connected by a straight line to form a triangle, so that the plug body 1 has a simple structure and is convenient for plugging. The assembly 100 is better adapted to the terminals of the compressor.

Specifically, in the examples shown in FIGS. 1-5 , the three installation through holes 10 are arranged in an equilateral triangle, that is to say, on the cross section of the plug assembly 100, the centers of two adjacent installation through holes 10 are sequentially connected by a straight line. The projection of the axis forms an equilateral triangle, which simplifies the structure of the plug body 1 and facilitates the processing of the plug body 1. At the same time, the three connecting columns 2 are arranged in a equilateral triangle, so that the plug assembly 100 is better compatible with the traditional terminals of the compressor. Adaptation improves the applicability of the plug assembly 100 .

Further, as shown in FIGS. 1-5 , the plug body 1 includes three installation parts 11 spaced apart from each other and arranged in parallel. The three installation parts 11 can be arranged in a triangle, and each installation part 11 is formed with a 11 through a mounting through hole 10 in the axial direction. The three mounting parts 11 are connected by three first connecting plates 12 and three second connecting plates 13. In the axial direction of the plug body 1, the first connecting plate 12, the second connecting plate 13 and the can be equal in length. One end of the three first connecting plates 12 is connected and the above-mentioned one end of the three first connecting plates 12 coincides with the inner center of the triangle surrounded by the connecting lines of the centers of the three mounting parts 11, and the other end of the three first connecting plates 12 It is connected with the outer peripheral wall of the corresponding installation part 11, so that the three first connection plates 12 can connect the three installation parts 11, and at the same time, the three first connection plates 12 can support the corresponding installation part 11, so as to improve the stability of the plug body 1. Intensity; two adjacent mounting parts 11 are connected by a second connecting plate 13, that is, one end of the second connecting plate 13 is connected to one of the two adjacent mounting parts 11, and the other end of the second connecting plate 13 is connected to the other end of the second connecting plate 13. The other one of the two adjacent mounting portions 11 is connected, and the three first connecting plates 12 are located inside the figure surrounded by the three second connecting plates 13 and the three mounting portions 11 . Thus, the structure of the plug body 1 is further simplified, and the strength of the plug body 1 is ensured.

For example, in the examples shown in FIGS. 1-5 , the three installation through holes 10 are arranged in an equilateral triangle, one end of the three first connecting plates 12 is connected and the above-mentioned one ends of the three first connecting plates 12 are connected to the three mounting parts 11 The centers of the equilateral triangles surrounded by the central connecting lines overlap, thereby ensuring the strength of the plug body 1 .

Specifically, as shown in FIGS. 1-5 , the outer contour shape of the cross-section of each mounting portion 11 is circular, and each second connecting plate 13 is formed to be surrounded by a connecting line facing the centers of the three mounting portions 11. Triangular inner concave arc-shaped plate, and each second connecting plate 13 is respectively tangent to the two mounting parts 11 connected to it, and one end of the outer surface of the second connecting plate 13 can be connected to the two mounting parts connected to it 11, the outer peripheral wall of one of them is tangent, and the other end of the outer surface of the second connecting plate 13 can be tangent to the outer peripheral wall of the other one of the two mounting parts 11 connected to it, so that the second connecting plate 13 is connected to the outer peripheral wall of the second connecting plate 13. The smooth transition between the two connected installation parts 11 makes the plug body 1 have a good grip feeling, which is convenient for the user to operate.

It can be understood that each second connecting plate 13 can also be formed as a flat plate, so as to simplify the structure of the second connecting plate 13 and also facilitate the user's operation.

Optionally, each first connecting plate 12 is formed as a flat plate, thereby further simplifying the structure of the plug body 1 while ensuring the strength requirement of the plug body 1 , saving the material used for the plug body 1 and reducing the cost.

Optionally, as shown in Figures 1-5, the central axes of the three installation through holes 10 are parallel to each other, the distance between the central axes of two adjacent installation through holes 10 is x, and x satisfies x=11.6±0.5 mm, that is to say, 11.1mm≤x≤12.1mm, so that there is a suitable processing accuracy between the installation through holes 10, which facilitates the processing of the installation through holes 10. The distance between the central axes of two adjacent terminal posts is 11.66 mm, which makes the plug assembly 100 better compatible with the traditional terminals of the compressor and ensures the versatility of the plug assembly 100. At the same time, the plug assembly 100 is compatible with the wiring The end connection is reliable to ensure the normal operation of the compressor.

In some specific embodiments of the present invention, the connecting column 2 includes a first connecting column 21 and a second connecting column 22 arranged coaxially, and the installation through hole 10 includes a first installing hole 10a and a second installing hole 10b arranged coaxially , the first connecting post 21 fits in the first mounting hole 10a, a part of the second connecting post 22 fits in the second mounting hole 10b, and the other part extends beyond the second mounting hole 10b, and the outer peripheral wall of the first mounting hole 10a is located at The outer side of the outer peripheral wall of the second mounting hole 10b. For example, as shown in Figures 1-7, the mounting through hole 10 can be formed as a stepped hole, the first connecting post 21 can be adapted to the first mounting hole 10a, and the second connecting post 22 can be matched to the second mounting hole 10b. Adaptively, the outer peripheral wall of the first connecting post 21 can be located outside the outer peripheral wall of the second mounting hole 10b. The other side of the hole 10 passes through, so that when the plug assembly 100 is applied to the compressor starter, and one end of the second connecting post 22 protruding from the installation through hole 10 is connected to the control board, the connecting post 2 can limit the plug body 1 along the Its axial movement prevents the plug body 1 from disengaging from the connecting post 2 and ensures the reliability of the plug assembly 100 .

Optionally, as shown in Figure 4 and Figure 6, both the first mounting hole 10a and the second mounting hole 10b are formed as circular holes, so as to facilitate the processing of the first mounting hole 10a and the second mounting hole 10b, wherein the first The aperture of the mounting hole 10a is d, and d satisfies d=2.2±0.5mm, that is, 1.7mm≤d≤2.7mm, so that the first mounting hole 10a has a suitable processing accuracy, and the aperture of the second mounting hole 10b is smaller than the first mounting hole 10a; the cross-sections of the first connecting post 21 and the second connecting post 22 are adapted to the first mounting hole 10a and the second mounting hole 10b respectively, so that the outer peripheral walls of the first connecting post 21 and the second connecting post 22 They are all formed in a circle, the outer diameter of the first connecting column 21 is D, and D satisfies D=2.2±0.5mm, that is, 1.7mm≤D≤2.7mm, and the outer diameter of the second connecting column 22 is smaller than that of the first connecting column 21 outer diameter, so that the first connecting post 21 has appropriate processing accuracy, and the first connecting post 21 can fit well with the first mounting hole 10a, and at the same time, the first connecting post 21 can better connect with the traditional wiring of the compressor The ends are compatible, which ensures the versatility of the plug assembly 100 .

In some optional embodiments of the present invention, as shown in FIG. 6, the axial length of the first mounting hole 10a is h, and h satisfies h=8.5±0.5mm, that is, 8mm≤h≤9mm, so that the first mounting hole 10a has suitable processing accuracy, and the terminal of the compressor can be inserted into the first mounting hole 10a to be plugged and connected with the first connecting column 21, so that the first mounting hole 10a can be connected to the first connecting column 21 and the compressor. The terminals play a certain protective role, ensuring the connection reliability between the terminals of the compressor and the connecting column 2 .

Further, in the example of FIG. 6 , a stepped portion 10c is formed between the first mounting hole 10a and the second mounting hole 10b, and a groove 10d is formed on the stepped portion 10c, the groove 10d is annular and the groove 10d surrounds the second mounting hole. Two mounting holes 10b are provided, and the groove 10d can be formed by indenting part of the surface of one axial end of the stepped portion 10c toward the other axial end of the stepped portion 10c. The groove 10d can be formed in a cylindrical structure and can be connected with the first The two installation holes 10b are arranged at intervals inside and outside, so that when the plug assembly 100 is applied to the compressor starter to be connected with the compressor, during the assembly process, the connecting column 2 is inclined relative to the installation through hole 10 due to external force, and the concave The groove 10d is deformed so that the connecting post 2 and the installation through hole 10 can be arranged out of axis. Thus, by setting the annular groove 10d on the step portion 10c, the deformation of the groove 10d reduces the force between the connecting column 2 and the installation through hole 10, avoiding the force between the connecting column 2 and the installation through hole 10. The large and damaged connecting column 2 or the installation through hole 10 effectively protects the connecting column 2 and the plug body 1 .

Specifically, as shown in FIG. 6, in the radial direction of the installation through hole 10, the outer peripheral wall of the groove 10d is flush with the outer peripheral wall of the first installation hole 10a, that is, on the cross section of the installation through hole 10, The projection of the peripheral wall of the groove 10d has the same shape and size as the projection of the peripheral wall of the first mounting hole 10a, thereby facilitating the processing of the groove 10d.

It can be understood that, in the radial direction of the installation through hole 10, the outer peripheral wall of the groove 10d can also be uneven with the outer peripheral wall of the first installation hole 10a, for example, in the radial direction of the installation through hole 10, the outer peripheral wall of the groove 10d The wall can also be located inside the outer peripheral wall of the first installation hole 10a, which can also effectively protect the connecting post 2 and the plug body 1 . In addition, the groove 10d can be arranged coaxially with the installation through hole 10 , or can be arranged asynchronously with the installation through hole 10 .

In some optional embodiments of the present invention, the groove 10d opens toward the first mounting hole 10a. For example, in the example of FIG. 6 , the side of the groove 10d facing away from the first mounting hole 10a is closed, and the side of the groove 10d facing the first mounting hole 10a is open, so that the groove 10d faces the first mounting hole 10a. One side of the hole 10a can move to a certain extent relative to the first mounting hole 10a to deform the groove 10d, ensuring that the deformation of the groove 10d can reduce the force between the connecting column 2 and the mounting through hole 10

Wherein, the cross-sectional shape and size of the groove 10d and the axial depth of the groove 10d can be set according to actual conditions to better meet actual needs.

In other optional embodiments of the present invention, the side of the groove 10d facing the first installation hole 10a is closed, and the side of the groove 10d facing away from the first installation hole 10a is open, so that the side of the groove 10d facing away from the first installation hole 10a is open. One side of the mounting hole 10a can move to a certain extent relative to the first mounting hole 10a to deform the groove 10d, and also ensure that the deformation of the groove 10d can reduce the interaction between the connecting column 2 and the mounting through hole 10 force.

In some specific embodiments of the present invention, one end of the connecting column 2 is opened to form a slot 21a, at least one opening slot 21b is formed on the peripheral wall of the slot 21a, and the opening slot 21b runs through the peripheral wall of the slot 21a. For example, as shown in Figure 3 and Figure 7, the slot 21a can be formed by indenting the part of the end face of the above-mentioned one end of the connecting column 2 towards the above-mentioned other end of the connecting column 2, and the terminal of the compressor can be inserted into the slot 21a The opening groove 21b can also be formed by recessing the above-mentioned other end of the above-mentioned one end of the connecting column 2 toward the above-mentioned other end of the connecting column 2, and the opening groove 21b can penetrate the outer peripheral wall of the slot 21a from the inside to the outside and the opening groove 21b and the slot 21a Connected, since the terminal of the compressor is inserted into the slot 21a, the opening groove 21b is deformed, so that the distance between the opposite side walls of the opening groove 21b along the circumference of the connecting column 2 increases, so that the terminal can Closely fit in the slot 21a, so that the terminal and the slot 21a are automatically fastened, which improves the connection reliability between the connecting column 2 and the compressor terminal, and at the same time facilitates the insertion of the compressor terminal into the slot 21a, the assembly efficiency is improved.

Optionally, as shown in FIG. 3 and FIG. 7 , there are two opening grooves 21b, and the two opening grooves 21b are arranged opposite to each other along the radial direction of the connecting column 2, so that the above-mentioned one end of the connecting column 2 forms a radial direction along the connecting column 2. The two locking pieces 211 are arranged oppositely. When the connection terminal of the compressor is inserted in the slot 21a, the distance between the two locking members 211 increases, so that the connection terminal is tightly fitted in the slot 21a, and the connection between the connection terminal and the slot 21a Automatic fastening ensures reliable connection between the connecting column 2 and the terminal of the compressor.

It can be understood that the opening slot 21b can also be one, three, four, etc., and when there are multiple opening slots 21b, the plurality of opening slots 21b can be arranged at intervals along the circumference of the connecting column 2; When there are two opening slots 21b, the two open slots 21b may not be arranged oppositely along the radial direction of the connecting column 2 .

Further, one end of the connecting column 2 has a guiding portion 21c, and the cross-sectional area of the guiding portion 21c first decreases and then increases along the axial direction of the connecting column 2 . For example, in the example shown in FIG. 3 and FIG. 7 , the guide portion 21c can be roughly formed as a cylindrical structure, and the cross-sectional area of the cylindrical structure first decreases and then increases along the axial direction of the connecting column 2, so that the guide portion 21c The ends of the plugs form bell mouths, and when the plug assembly 100 is applied to a compressor starter, it is convenient for the terminals of the terminals of the compressor to be plugged into the first connecting columns 21 .

In some embodiments of the present invention, at least three bosses 14 are provided on the side of the plug body 1 adjacent to the control board, and the free ends of the bosses 14 abut against the control board. For example, as shown in Fig. 2, Fig. 3 and Fig. 6, the boss 14 can be formed by protruding along the axial direction of the plug body 1 from a part of the surface of the side of the plug body 1 adjacent to the control board, when the plug assembly 100 is applied to compress When starting the starter, the end face of the free end of the boss 14 is in contact with the control board, realizing the positioning of the plug assembly 100 relative to the control board, and facilitating the quick connection between the plug assembly 100 and the control board; Arresting against the control board makes the contact surface formed between the plug assembly 100 and the control board relatively flat, avoiding the uneven surface of the plug assembly 100 and the control board that causes a large force between the plug assembly 100 and the control board , reducing the stress deformation of the plug assembly 100 and the control board; moreover, since the end face of the free end of the boss 14 abuts against the control board, the side surface of the plug body 1 adjacent to the control board is spaced from the control board, Contributes to the heat dissipation of the control board and ensures the reliable operation of the compressor starter.

Here, it should be noted that “the contact surface formed between the plug assembly 100 and the control board” refers to a plane defined by free ends of at least three bosses 14 . Wherein, the height of each boss 14 is t, and t satisfies t≦0.6mm, so that the boss 14 has a proper height, and avoids that the boss 14 is too high and increases the occupation space of the plug assembly 100 . Wherein, the height of each boss 14 may be equal or not completely equal; t may be equal to 0, that is to say, at this time, no boss 14 is provided on the side of the plug body 1 adjacent to the control board.

Optionally, as shown in Fig. 2, Fig. 3 and Fig. 6, each boss 14 is located on the edge of the plug body 1, and the distance between two bosses 14 can be larger, so that the boss 14 can be better The plug body 1 is supported so that when the plug assembly 100 is connected to the control board, the plug body 1 has good stability.

The compressor starter according to the embodiment of the second aspect of the present invention includes a control board and a plug assembly 100, the control board is provided with a control circuit, the plug assembly 100 is the plug assembly 100 according to the embodiment of the first aspect of the present invention, the plug assembly The other end of the connecting column 2 of 100 is connected with the control board. When the compressor starter is connected to the compressor, the control circuit can control the starting of the compressor. Wherein, the compressor starter can be an electronic starter, which can reduce the power consumption of the compressor starter.

According to the compressor starter of the embodiment of the present invention, by using the above-mentioned plug assembly 100, it is convenient to quickly connect the compressor starter to the compressor, and at the same time ensure the reliability of the connection between the compressor starter and the compressor.

The compressor assembly according to the embodiment of the third aspect of the present invention includes a compressor and a compressor starter, the compressor has a terminal, the compressor starter is the compressor starter according to the above-mentioned embodiment of the second aspect of the present invention, and a plug assembly 100 is connected to the terminal plug.

According to the compressor assembly of the embodiment of the present invention, by using the above-mentioned compressor starter, the assembly of the compressor assembly is facilitated, and the assembly efficiency of the compressor assembly is improved.

Other configurations and operations of the compressor assembly according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

The plug assembly 100 according to the embodiment of the present invention will be described in detail in a specific embodiment below with reference to FIGS. 1-7 . It should be understood that the following description is only an illustration rather than a specific limitation to the invention.

As shown in FIGS. 1-7 , the plug assembly 100 includes a plug body 1 and three connecting posts 2. The plug body 1 is an insulator, for example, the plug body 1 is a plastic part, and the connecting posts 2 are conductive parts. For example, the connecting posts 2 are metallic parts. The plug body 1 includes three installation parts 11 spaced apart from each other and arranged in parallel. The three installation parts 11 are arranged in a triangular shape. The outer contour shape of the cross section of each installation part 11 is circular. An installation through hole 10 penetrates axially of the installation part 11, so that the three installation through holes 10 are arranged in an equilateral triangle, and the distance between the central axes of two adjacent installation through holes 10 is x, and x satisfies x=11.6±0.5 mm, that is, 11.1mm≤x≤12.1mm. The three mounting parts 11 are connected by three first connecting plates 12 and three second connecting plates 13. In the axial direction of the plug body 1, the first connecting plate 12, the second connecting plate 13 and the The lengths are all equal, one end of the three first connecting plates 12 is connected and the above-mentioned one end of the three first connecting plates 12 coincides with the center of the equilateral triangle surrounded by the center line of the three mounting parts 11, and the three first connecting plates The other end of the plate 12 is connected to the outer peripheral wall of the corresponding mounting portion 11, so that each first connecting plate 12 extends along the bisectors of the three angles of the above-mentioned equilateral triangle; the second connecting plate passes between two adjacent mounting portions 11 13 connected, each second connecting plate 13 is formed as a concave arc-shaped plate towards the center of the equilateral triangle surrounded by the central line of the three mounting parts 11, and each second connecting plate 13 is connected to the two mounting parts 11. The mounting portions 11 are respectively tangent, and the three first connecting plates 12 are located inside the figure surrounded by the three second connecting plates 13 and the three mounting portions 11 .

The three connecting columns 2 are correspondingly inserted in the three installation through holes 10, and one end of the connecting column 2 (for example, the front end in FIG. Successively, the other end (for example, the rear end in FIG. 3 ) of each connecting post 2 extends beyond the installation through hole 10 to be suitable for fixed connection with the control board.

Specifically, as shown in FIGS. 1-7 , the connecting column 2 includes a first connecting column 21 and a second connecting column 22 arranged coaxially, the rear end of the first connecting column 21 is connected to the front end of the second connecting column 22, The first connecting column 21 is formed as a hollow structure so that the front end of the first connecting column 21 forms a slot 21a, the second connecting column 22 can be formed as a solid structure or a hollow structure, and the rear end of the second connecting column 22 is formed with a guide surface 221 , the guiding surface 221 is roughly formed as a circular table surface, so as to facilitate the connecting post 2 to pass through the installation through hole 10 . The installation through hole 10 is formed as a stepped hole and the installation through hole 10 includes a first installation hole 10a and a second installation hole 10b arranged coaxially. The first installation hole 10a and the second installation hole 10b are both formed as circular holes. The aperture d=2.2±0.5mm of the installation hole 10a, that is, 1.7mm≤d≤2.7mm, the axial length of the first installation hole 10a h=8.5±0.5mm, that is, 8mm≤h≤9mm, and the first connecting column 21 cooperates In the first mounting hole 10a, the outer diameter D of the first connecting column 21 is 2.2±0.5mm, that is, 1.7mm≤D≤2.7mm, and the front end of the second connecting column 22 fits in the second mounting hole 10b. The rear end of the connecting post 22 extends beyond the second mounting hole 10b, and the diameter of the first mounting hole 10a is larger than the diameter of the second mounting hole 10b.

Further, as shown in FIG. 6, a stepped portion 10c is formed between the first mounting hole 10a and the second mounting hole 10b, and a groove 10d is formed on the stepped portion 10c, the groove 10d is annular and the groove 10d surrounds the second The mounting hole 10b is provided, and the groove 10d is formed by indenting a part surface of the front end of the step portion 10c toward the rear end of the step portion 10c, so that the side of the groove 10d facing the first mounting hole 10a is open, and the side of the groove 10d faces away from the rear end of the step portion 10c. One side of the first installation hole 10a is closed, and the groove 10d is roughly formed into a cylindrical structure. An outer peripheral wall of a mounting hole 10a is flush.

As shown in Fig. 3 and Fig. 7, two opening grooves 21b are formed on the outer peripheral wall of the slot 21a, and the two opening grooves 21b are arranged opposite to each other along the radial direction of the connecting column 2, so that the above-mentioned one end of the connecting column 2 is formed along the connecting column. Two locking pieces 211 arranged radially opposite to each other, each opening slot 21b runs through the outer peripheral wall of the slot 21a. The front end of the locking member 211 has a guiding portion 21c, and the cross-sectional area of the guiding portion 21c first decreases and then increases along the axial direction of the connecting column 2 .

Further, as shown in FIG. 2, FIG. 3 and FIG. 6, the side of the plug body 1 adjacent to the control board is provided with three bosses 14, and each boss 14 is located at the edge of the rear end of the corresponding installation part 11, and each The outer surface of each boss 14 is flush with the part of the peripheral wall of the corresponding installation part 11; the height t of each boss 14≤0.6mm, the end surface of the free end of the boss 14 is formed as a plane and when the plug assembly 100 is applied to the compressor When the starter is activated, the end surface of the free end of the boss 14 is against the control board. At this time, the rear end of the second connecting column 22 is pierced in the mounting hole of the control board to be connected with the control board by welding.

According to the plug assembly 100 of the embodiment of the present invention, the structure is simple, and has good structural strength; The rear end of the compressor can be connected to the control board of the compressor starter, which facilitates the connection between the compressor starter and the compressor, and ensures the reliability of the connection between the compressor starter and the compressor.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (20)

1. A plug assembly, characterized in that, comprising: A plug body, at least one installation through hole is formed on the plug body; At least one connecting column, the connecting column is passed through the installation through hole, one end of each connecting column is located in the installation through hole so as to be suitable for plugging and connecting with the terminal of the compressor, each of the connecting columns The other end of the connecting column extends beyond the installation through hole so as to be suitable for connecting with the control board. 2. The plug assembly according to claim 1, wherein there are three installation through holes, and the three installation through holes are arranged in a triangle. 3. The plug assembly according to claim 2, wherein the plug body includes three mounting parts spaced apart from each other and arranged in parallel, each of the mounting parts is formed with a One through hole for installation, the three installation parts are connected by three first connecting plates and three second connecting plates, one end of the three first connecting plates is connected and connected with the three The inner centers of the triangles surrounded by the connecting lines of the centers of the installation parts overlap, the other ends of the three first connecting plates are connected with the outer peripheral walls of the corresponding installation parts, and the two adjacent installation parts pass through the The second connection boards are connected together, and the three first connection boards are located inside the figure enclosed by the three second connection boards and the three installation parts. 4. The plug assembly according to claim 3, characterized in that, the outer contour shape of the cross-section of each of the mounting parts is circular, and each of the second connecting plates is formed to face three of the mounting parts. A triangular inner concave arc-shaped plate surrounded by the central connecting line, and each second connecting plate is respectively tangent to the two mounting parts connected thereto. 5. The plug assembly of claim 3, wherein each of the first connection plates is formed as a flat plate. 6. The plug assembly according to claim 2, wherein the three installation through holes are arranged in an equilateral triangle, the distance between the central axes of two adjacent installation through holes is x, and the x satisfies : x=11.6±0.5mm. 7. The plug assembly according to claim 1, wherein the connecting post comprises a coaxially arranged first connecting post and a second connecting post, and the installation through hole comprises a coaxially arranged first installing hole and a second connecting post. a second mounting hole, the first connecting post fits in the first mounting hole, a part of the second connecting post fits in the second mounting hole, and the other part extends beyond the second mounting hole, The peripheral wall of the first mounting hole is located outside the peripheral wall of the second mounting hole. 8. The plug assembly according to claim 7, wherein the first mounting hole and the second mounting hole are both formed as circular holes, the diameter of the first mounting hole is d, and the d Meet: d=2.2±0.5mm, The cross-sections of the first connecting column and the second connecting column are adapted to the first mounting hole and the second mounting hole respectively, the outer diameter of the first connecting column is D, and the D satisfies: D=2.2±0.5mm. 9. The plug assembly according to claim 7, wherein the axial length of the first installation hole is h, and the h satisfies: h=8.5±0.5mm. 10. The plug assembly according to claim 7, wherein a stepped portion is formed between the first mounting hole and the second mounting hole, a groove is formed on the stepped portion, and the groove It is ring-shaped and arranged around the second installation hole. 11. The plug assembly according to claim 10, characterized in that, in the radial direction of the installation through hole, the outer peripheral wall of the groove is flush with the outer peripheral wall of the first installation hole. 12. The header assembly of claim 10, wherein the groove opens toward the first mounting hole. 13. The plug assembly according to claim 1, wherein the one end of the connecting post is opened to form a slot, at least one open slot is formed on the outer peripheral wall of the slot, and the open slot runs through the peripheral wall of the slot. 14 . The plug assembly according to claim 13 , wherein there are two opening slots, and the two opening slots are arranged opposite to each other along the radial direction of the connecting post. 15. The plug assembly according to claim 13, wherein the one end of the connecting post has a guiding part, and the cross-sectional area of the guiding part first decreases and then increases along the axial direction of the connecting post. big. 16. The plug assembly according to any one of claims 1-15, wherein at least three bosses are provided on the side of the plug body adjacent to the control board, and the free ends of the bosses against the control board. 17. The plug assembly of claim 16, wherein each of said bosses is located on an edge of said plug body. 18. The plug assembly according to claim 16, wherein the height of each of the bosses is t, and the t satisfies: t≤0.6mm. 19. A compressor starter, characterized in that it comprises: A control board, the control board is provided with a control circuit; A plug assembly, the plug assembly is the plug assembly according to any one of claims 1-18, the other end of the connecting post of the plug assembly is connected to the control board. 20. A compressor assembly, comprising: a compressor having terminals; A compressor starter, the compressor starter is the compressor starter according to claim 19, the plug assembly is plugged and connected to the terminal.