WO2022022034A1 - Ventilation device - Google Patents

Abstract

A ventilation device, comprising a frame (2), a frame flange (26), a mask (4), a connector (3), a side wall connector installation opening (21a), a ventilation air outlet wall (25), a ventilation air outlet (25a), and an installation space (S). The connector (3) is used for connecting an internal space and an external space of the frame (2) and is provided with a connector plate (30) and a pipeline connecting part (31) which are installed in the frame (2). The side wall connector installation opening (21a) is formed in the side wall of the frame (2), the ventilation air outlet wall (25) is provided in the inner space of the frame (2) and located on the upstream side of the side wall connector installation opening (21a), and the ventilation air outlet (25a) is formed in the ventilation air outlet wall (25) and is opposite to the side wall connector installation opening (21a). The installation space (S) is used for installing the connector plate (30) and is formed between a side wall provided with the side wall joint installation opening (21a) and the ventilation air outlet wall (25). The ventilation device can be suitable for a common suspended ceiling and an integrated suspended ceiling at the same time and is good in installation sealing performance.

Description

ventilation device technical field

The utility model relates to the technical field of household appliances, in particular to a ventilation device.

Background technique

The types of ceilings on the market mainly include ordinary ceilings and integrated ceilings. Integrated ceiling usually includes keel, electrical body and gusset plate; ordinary ceiling is made of traditional ceiling (wood board), keel and other materials, it only has the function of ceiling, there is no electrical module, it needs to be installed on the wooden board before installing electrical appliances Cut the opening.

As an electrical appliance suitable for both ordinary ceilings and integrated ceilings, the ventilation device can suck indoor air into its interior and then discharge it to the outdoors through pipes to meet users' needs for indoor ventilation. FIG. 1 is a known ventilation fan. As shown in FIG. 1 , a joint 13 connected to the air outlet 15 is attached to the outside of the side wall of the ventilation fan housing 11 . The joint 13 includes a joint plate 16 connected to the frame body 11 and a pipeline connecting portion 17 connected to the pipeline. Before using the ventilating fan, the pipe is put on the pipe connecting part 17 of the joint 13, and the air blown out from the air outlet 15 can be guided to be blown to the outside through the joint 13 and the pipe.

When the above-mentioned ventilating fan is installed on the integrated ceiling, in order to maintain the overall consistency of the indoor integrated ceiling and improve the overall aesthetics of the living room environment, the overall size of the bottom surface of the frame body 11 (including the frame body flange 19) can be The size refers to the dimension of the component in the direction parallel to the gusset of the integrated ceiling or the board of the ordinary ceiling when the ventilation fan is installed, the same below) is smaller than the size of one gusset, and the size of the mask 12 of the ventilation fan is the same as The size of the gusset plate is the same, so that the mask 12 of the ventilation fan can replace a gusset plate to cover the frame body opening and the frame body flange 19 at the bottom of the frame body and be installed, which can be consistent with the height of the surrounding gusset plate, rather than protruding in the direction of the indoor side and lower than the surrounding gussets. However, when the size of the gusset plate of the integrated ceiling is small, such as the gusset plate size is 300mm*300mm, and the size of the mask matching the gusset plate is also set to 300mm*300mm, the frame opening size plus the frame flange size is the overall The size needs to be less than 300mm*300mm. In order to ensure sufficient air duct volume and component installation space inside the frame, the size of the frame opening cannot be set too small, therefore, the size of the frame flange 19, that is, the frame flange 19 extends outward from the frame opening. The length needs to be reduced.

When the above-mentioned ventilating fan is installed on a common ceiling, a ceiling opening that is larger than the opening of the frame and smaller than the total size of the opening of the frame plus the flange 19 of the frame is cut on the ceiling in advance; The flap 161 at the lower end of the joint plate 16 is close to the bottom of the ceiling, and the screw is used to penetrate the opening 162 on the lower end flap 161 of the joint plate 16 and the ceiling with screws from below the ceiling, so as to fix the joint 13 on the ceiling; then the frame body 11 Push through the ceiling opening toward the roof until the frame flange 19 is close to the ceiling, and at the same time, the protruding piece 151 above the frame air outlet 15 is snapped into the long hole 163 above the connector 13, so that the connector plate 16 is locked in place. The outer side of the frame body 11; then use the screw to penetrate the opening 191 on the frame body flange 19 and the ceiling, so that the frame body 11 is fixed on the ceiling, and finally cover the mask 12 on the opening of the frame body, so that the mask 12 covers the frame body method The blue 19 and the frame body are open. However, in order to adapt to the installation of the integrated ceiling, the ventilation fan needs to reduce the size of the frame flange 19 and the mask 12, so that when the ventilation fan is installed on a common ceiling, the lower surface 164 of the joint plate 16 and the flap 161 may protrude from the edge of the mask 12 , so that the frame flange 19 and the mask 12 cannot be closely attached to the bottom of the ceiling, and the mask 12 is lifted from the ceiling downward (indoor side), and a gap is generated between the mask 12 and the ceiling, resulting in air leakage.

In order to solve the above problems, the present invention provides a joint installation structure which can be applied to both common ceiling and integrated ceiling ventilation devices.

Utility model content

The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art, and to provide a joint installation structure that can be applied to both ordinary ceiling and integrated ceiling ventilation devices. The ventilation device has good installation sealing and is not prone to air leakage. .

The technical scheme adopted by the utility model is as follows:

A ventilation device, comprising:

The frame body is a hollow structure with a top wall and a side wall, a frame body opening is formed at the bottom and an interior space for accommodating an air supply part for ventilation is formed inside;

a frame body flange, extending from the bottom of the side wall of the frame body to the outer peripheral direction of the frame body;

a face mask, covering the frame body opening and the frame body flange at the bottom of the frame body;

a joint, used to connect the inner space of the frame body and the outer space of the frame body, and has a joint plate installed inside the frame body and a pipe connection part extending from the joint plate to the downstream side;

The side wall joint installation port is arranged on the side wall of the frame body and is used for installing the joint;

The ventilation outlet wall is arranged in the inner space of the frame body, and is located on the upstream side of the side wall joint installation port;

The ventilation outlet is arranged on the wall of the ventilation outlet, and is arranged opposite to the side wall joint installation port;

An installation space for installing the joint plate is formed between the side wall provided with the side wall joint installation port and the wall of the ventilation outlet.

Compared with the structure in which the joint is installed on the outside of the side wall of the frame body in the prior art, the utility model provides a side wall joint installation port on the side wall of the frame body, and a ventilation outlet wall is arranged in the frame body, and the ventilation outlet wall is used. The installation space in the frame is formed between the side wall and the side wall provided with the side wall joint installation port, and the installation space is used to install the joint plate of the joint. This configuration can shorten the part of the bottom of the joint plate beyond the outside of the side wall of the frame body, It solves the problem that in order to match the size of the integrated ceiling gusset and reduce the size of the mask and the flange of the frame, the existing ventilating device causes the part of the bottom of the joint plate beyond the side wall of the frame to protrude out of the edge of the mask when installed on a common ceiling. , the air leakage problem caused by lifting the mask down from the ceiling (indoor side).

The ventilation device of the utility model can be applied to both common suspended ceilings and integrated suspended ceilings, and when installed on the common suspended ceilings, the mask and the ceiling are well sealed, and the problem of air leakage is not easy to occur.

Further, the frame body further includes a connecting piece, and the connecting piece is formed by horizontally extending the inner surface of the side wall with the side wall joint installation opening toward the inner circumference of the frame;

The ventilation outlet wall is formed by the upward extension of the end of the connecting piece close to the inner periphery of the frame, and is arranged opposite to the side wall provided with the side wall joint installation port;

The installation space is composed of the side wall provided with the side wall joint installation port, the connecting piece and the ventilation outlet wall, and can be inserted into the joint plate.

Further, the top wall of the frame body is provided with a top wall joint installation port, and the top wall joint installation port is communicated with the side wall joint installation port, so that the joint plate can be installed from the top wall side of the frame body. insert.

Further, the top wall of the frame body is provided with an engaging tab protruding upward from the top wall near the mounting port of the top wall joint;

The upper end of the joint plate is bent in the opposite direction of the pipe connecting part to form a bent piece;

The bending piece is provided with an insertion hole into which the engaging tab can be inserted.

Further, the side surface of the engaging protruding piece facing the inner peripheral direction of the casing is an engaging protruding piece inclined surface, and the inclined surface of the engaging protruding piece is inclined toward the outer peripheral direction of the casing as it goes upward.

Further, the frame body flange is provided with a frame body flange recess formed by concave downward from its upper surface, and the frame body flange recess is located at the side of the side wall provided with the side wall joint installation port. At the bottom of the frame flange;

A joint flange is provided on the lower end of the joint plate facing the pipe connecting portion side, the joint flange is perpendicular to the joint plate, and can be inserted into the recess of the frame flange.

Further, the top wall of the frame body is provided with a screw column protruding from the top wall near the ventilation outlet;

An extension piece is upwardly extended from the end of the bent piece of the joint;

A screw mounting piece is extended from the end of the extension piece to the inner peripheral direction of the frame body;

The screw mounting piece is provided with a screw hole which can be overlapped with the opening of the screw column.

Further, the joint plate is provided with a longitudinal guide rib at the position below the pipe connecting portion, and the guide rib is formed to protrude from the plane of the joint plate to the outer peripheral direction of the frame, and can be inserted into the In the installation space, the guide rib has a guide rib inclined surface inclined toward the inner peripheral side of the frame as it goes downward.

Further, the outer periphery of the ventilation air outlet is provided with a water blocking sheet that can block liquid from flowing into the ventilation air outlet.

Further, the ventilation outlet is in a square shape, the water blocking sheet includes an upper water blocking sheet, two side water blocking sheets and a connecting water blocking sheet, and the upper water blocking sheet is arranged on the top wall, and It is closer to the inner periphery of the frame than the upper edge of the ventilation outlet; the water blocking sheets on both sides are arranged on the side walls and are located on both longitudinal sides of the ventilation outlet; the connecting water blocking sheets are connected The end of the upper water blocking sheet and the ends of the two side water blocking sheets.

Further, the joint plate is provided with a longitudinal long opening at a position below the pipe connecting portion.

Compared with the prior art, a horizontal opening is arranged on the lower end flap of the joint plate, and screws are used to penetrate the opening on the lower end flap of the joint plate and the ceiling upward from the ceiling, so as to fix the joint on the ceiling. A longitudinal long hole is provided at the position below the pipe connection part. When the ventilation device is installed on a common ceiling, screws can be used to penetrate the long hole and the side of the ceiling from the side of the joint plate facing the ceiling opening, so that the joint It is fixed on the ceiling, so that the lower end of the joint plate does not need to be provided with a flap with screw holes, and only a joint flange that can be clamped to the ceiling needs to be arranged at the lower end of the joint plate. Compared with the flaps in the prior art, the flaps can be designed to be shorter, so as to suppress the possibility of air leakage caused by the flaps protruding beyond the edge of the mask.

Description of drawings

FIG. 1 is a known ventilation fan.

Fig. 2 is a top perspective view of the ventilation device of the present invention.

3 is a bottom view of the ventilation device of the present invention.

4 is a cross-sectional view of the ventilation device of the present invention when it is installed on a common ceiling.

5 is a cross-sectional view of the ventilation device of the present invention when it is installed on an integrated ceiling.

6 is a bottom view of the frame body and the joint of the ventilation device of the present invention.

7 is a perspective view of the joint of the ventilation device of the present invention being installed on the frame.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments of the present invention are some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "top surface", "lower surface", etc. refers to the direction based on the installation state of the ventilation device or the Positional relationship. For example, the terms "upper" and "top" refer to the position or position away from the construction personnel after the ventilation device is installed between the roof and the ceiling; The location or location close to the construction personnel after the interval. "Outer peripheral direction of the frame" refers to the outward direction relative to the longitudinal center axis of the frame; "inner peripheral direction of the frame" refers to the inward direction relative to the longitudinal center axis of the frame.

The "installation state of the ventilator" refers to the state in which the ventilator is installed between the roof and the ceiling, the mask faces the room, and can operate normally.

Regarding "upstream" and "downstream", when the air blower operates, the air flow from the air inlet to the circulation air outlet or the ventilation air outlet is formed in the casing. "Upstream direction" refers to the reverse direction of the airflow direction; "downstream direction" refers to the airflow direction. The "upstream side" refers to the side located in the upstream direction; the "downstream side" refers to the side located in the downstream direction. "Upstream end" refers to the end in the upstream direction; "downstream end" refers to the end in the downstream direction.

The above-mentioned orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as affecting the present utility model. New type of restriction.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected integrally; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

First, the ventilation device in the present invention will be described with reference to the accompanying drawings. The ventilation device in this embodiment is an air conditioning device that takes indoor air into the interior and blows it out to the outdoors to exchange indoor and outdoor air. In this ventilation device, in addition to the ventilation function, a heater is provided to heat a part of the air and then discharge it into the room to achieve the function of indoor heating.

Fig. 2 is the top oblique view of the ventilation device of the present utility model. For the sake of clarity, Fig. 2 has enlarged the guide rib and the engaging tab, and moved the joint to the top of the frame for display.

FIG. 3 is a bottom view of the ventilation device of the present invention. In order to facilitate the display of components, FIG. 3 shows the frame body, the mask and the filter screen in a disassembled manner.

FIG. 4 is a cross-sectional view of the ventilation device of the present invention when it is installed on a common ceiling. For the sake of clarity, the joint is enlarged in FIG. 4 .

FIG. 5 is a cross-sectional view of the ventilation device of the present invention when it is installed on an integrated ceiling. For the sake of clarity, the joint is enlarged in FIG. 5 .

FIG. 6 is a bottom view of the frame body and the joint of the ventilation device of the present invention. For the sake of clarity, FIG. 6 hides a part of the components in the frame body.

7 is a perspective view of the joint of the ventilation device of the present invention being installed on the frame.

As shown in FIGS. 2 to 7 , the ventilation device includes: a frame body 2, a joint 3, a mask 4, an air inlet 4a, a circulating air outlet 4b, a switch plate 5, an air supply part 6, a heater 7, and a switch plate drive device (not shown in the figure), circuit board box 8 .

The frame body 2 includes: a top wall 20, a side wall 21, a side wall joint installation opening 21a, a top wall joint installation opening 21b, a snap-fit tab 22, a screw post 23, a connecting piece 24, a ventilation outlet wall 25, and an installation space S. The frame flange 26, the ventilation outlet 25a, the upper water blocking sheet 27a, the side water blocking sheets 27b, and the connecting water blocking sheet 27c. The specific structure of the frame body 2 will be described in detail below.

The casing 2 has a hollow structure, and the hollow structure forms an internal space for accommodating a plurality of components such as the air blower 6 and the heater 7 . In order to be applicable to both the integrated ceiling and the common ceiling, the mask 4 is set to be square in accordance with the shape of the gusset plate of the integrated ceiling. The frame body 2 has an irregular shape according to the shape of the internal components, but in order to match the installation of the square mask 4 , a frame body opening K with a square cross-section in the horizontal direction is formed at the bottom of the frame body 2 .

The frame body 2 has a top wall 20 and a side wall 21. The top wall 20 is the surface of the ventilator in the installed state that is parallel to the ground and away from the ground, and is located on the top of the frame body 2 and faces the frame body opening K; the side wall 21 is A surface formed by connecting the top wall 20 and the frame body opening K and extending perpendicular to the plane where the frame body opening K is located, the frame body opening K is surrounded by the bottom of the side wall 21 of the frame body 2 .

The side wall joint mounting opening 21a is an opening provided on one of the side walls 21 of the frame body 2 and used for mounting the joint 3 described later. The area of the side wall joint mounting opening 21a is set larger than the area of the longitudinal section of the pipe connecting portion 31 described later, but smaller than the longitudinal area of the joint plate 30 described later, so that the pipe connecting portion 31 can pass through the side wall joint mounting port 21a , but the joint plate 30 is locked by the side wall 21 provided with the side wall joint installation opening 21a, that is to say, in the state where the joint 3 is connected to the frame body 2, the joint plate 30 is located on the inner peripheral side of the side wall 21, The duct connection portion 31 is located on the outer peripheral side of the side wall 21 .

The top wall joint mounting port 21b is provided on the top wall 20 of the frame body 2 and communicates with the side wall joint mounting port 21a, and is a space for the joint plate 30 to be inserted into the installation space S described later from the top wall 20 side of the frame body 2. Square opening. The top wall joint mounting port 21b and the side wall joint mounting port 21a together constitute an insertion port of the installation space S described later, and the cross section of the insertion port in the longitudinal direction is an inverted "L" shape ("7" shape).

The engaging tab 22 is a protruding piece disposed on the top wall 20 of the frame body 2 near the top wall joint installation opening 21b and protruding upward from the top wall 20 , it has a certain height, and the engaging tab 22 faces the frame body The side surface in the inner circumferential direction forms the engaging protrusion inclined surface 22f which inclines toward the outer circumferential direction of the housing 2 as it goes upward, that is, the horizontal cross-sectional area of the engaging protrusion 22 decreases upward. The side of the engaging tab 22 facing the outer peripheral direction of the frame body 2 can be arranged to be inclined toward the inner peripheral direction of the frame body 2 as it goes upwards, so as to be easier to insert into the insertion hole 33h of the connector 3 described later; it can also be arranged perpendicular to the top. wall 20 to enhance the strength of the snap tab 22 .

The screw stud 23 is disposed on the top wall 20 at a position closer to the inner peripheral side of the frame body 2 than the upper water blocking piece 27 a described later, and the screw stud 23 does not communicate with the inside of the frame body 2 . A plurality of reinforcing pieces may be provided on the outer peripheral wall of the screw column 23 to restrain the deformation or displacement of the screw column 23 .

The connecting piece 24 is disposed inside the frame body 2 , and is formed by horizontally extending the inner surface of the side wall 21 with the side wall joint installation opening 21 a toward the inner peripheral direction of the frame body 2 .

The ventilation outlet wall 25 extends upward from the end of the connecting piece 24 close to the inner peripheral side of the frame body 2 to the top wall 20 of the frame body 2, and the ventilation outlet wall 25 is located on the upstream side of the side wall joint installation port 21a , and is arranged opposite to the side wall 21 provided with the side wall joint installation port 21a.

The installation space S is used to install the joint plate 30 described later, and is formed between the side wall 21 provided with the side wall joint installation port 21 a and the ventilation outlet wall 25 . Specifically, the installation space S is formed in the installation space S that is open to the top wall 20 side, which is constituted by the side wall 21 provided with the side wall joint installation port 21a, the connecting piece 24, and the ventilation outlet wall 25. The installation space S is set in accordance with the shape of the joint plate 30, and can accommodate the joint plate 30 to be inserted therein.

The frame body flange 26 is formed in a flat plate shape and extends from the bottom of the side wall 21 of the frame body 2 to the outer peripheral direction of the frame body 2 to form a close surface contact with the mask 4 . Among the flanges on the four sides of the frame body 2, the length L1 of the flange extending from the bottom of the side wall 21 provided with the side wall joint attachment opening 21a is greater than that of the side wall 21 provided with the side wall joint attachment opening 21a. The flange length L2 extended at the bottom of the two side walls 21 is shorter, and is consistent with the flange length L2 extended at the bottom of the side wall 21 opposite to the side wall 21 provided with the side wall joint installation port 21a, as shown in FIG. 6 . .

The frame flange 26 also has a frame flange recess 26a and a frame flange screw hole 26b.

The frame flange recess 26a is provided at the frame flange 26 extending from the bottom of the side wall 21 where the side wall joint installation opening 21a is provided. The frame body flange 26 itself has a certain thickness in the longitudinal direction, and the frame body flange recess 26a is formed by concave downward from the upper surface of the frame body flange 26, and the cross section of the frame body flange recess 26a in the horizontal direction is rectangular shape, The area is larger than that of the joint flange 32 to be described later.

The frame body flange screw holes 26b are provided on the frame body flanges 26 extending from the bottoms of the two side walls 21 adjacent to the side wall 21 provided with the side wall joint installation opening 21a. Each frame flange 26 is provided with two frame flange screw holes 26b.

The ventilation outlet 25a is provided on the ventilation outlet wall 25 located on the upstream side of the joint installation port, is opposite to the side wall joint installation port 21a, and is closer to the inner peripheral side of the frame body 2 than the side wall joint installation port 21a. square opening. The inner space and the outer space of the frame body 2 are communicated through the ventilation outlet 25a. Specifically, according to the ventilation requirements of the construction workers, the air in the indoor space can be discharged through the ventilation outlet 25a after entering the inner space of the frame body 2 It is discharged to the outside space of the housing 2 through a joint 3 and a duct to be described later to the outside space for ventilation. The position of the ventilation outlet 25a on the ventilation outlet wall 25 may be set according to the position of the air supply part 6 (described in detail below) for realizing ventilation, that is, the position of the ventilation outlet 25a may correspond to the position of the ventilation outlet 25a. The air outlet 6a of the air supply part 6, so that the air processed by the air supply part 6 can be directly discharged to the outdoor space through the ventilation air outlet 25a after being discharged from the air outlet 6a of the air supply part 6, so that the air passage is smoother. Improve ventilation efficiency.

The water blocking sheet is arranged on the top wall 20 and the side wall 21 of the frame body 2 on the outer periphery of the ventilation outlet 25a, and is used to block the liquid on the surface of the top wall 20 or the side wall 21 from flowing into the ventilation outlet 25a. Specifically, the water blocking sheet includes an upper water blocking sheet 27a arranged on the top wall 20 and closer to the inner peripheral side of the frame body 2 than the upper edge of the ventilation outlet 25a, and is provided on the side wall 21 and is located at the ventilation outlet. Two side water blocking pieces 27b on both longitudinal sides of 25a and connecting water blocking pieces 27c connecting the ends of the upper water blocking piece 27a and the ends of the two side water blocking pieces 27b. That is to say, except for the lower side of the ventilation outlet 25a, the upper and both sides of the ventilation outlet 25a are surrounded by water blocking sheets. When the liquid approaches the ventilation outlet 25a along the top wall 20 or the side wall 21, It can be blocked by the water blocking sheet and cannot flow into the casing 2 through the gap between the ventilation outlet 25a and the joint 3, so as to prevent the liquid from damaging the components inside the casing 2, such as the heater 7 described later.

The joint 3 is used to connect the ventilation outlet 25a and the pipeline, and has a joint plate 30, a pipeline connecting part 31, a joint flange 32, a bent piece 33, an extension piece 34, a guide rib 35 and a long opening H.

The joint plate 30 is formed into a flat plate shape, and is inserted into the installation space S of the casing 2 so that the joint 3 is attached to the casing 2 . In order to strengthen the joint plate 30 and suppress deformation of the joint plate 30 , a plurality of reinforcing ribs 30r protruding toward the outer peripheral direction of the frame body 2 may be provided on the surface of the joint plate 30 facing the outer peripheral side of the frame body 2 .

The pipe connection portion 31 extends from the joint plate 30 toward the downstream side thereof. The upstream side of the pipe connection portion 31 is formed in a rectangular shape, and the downstream side is formed in a cylindrical shape matching the shape of the pipe connecting the indoor and outdoor. The inner space of the duct connection portion 31 is connected to the ventilation outlet 25a, and guides the air blown out from the inside of the housing 2 to be discharged to the duct. That is, the duct connection portion 31 can connect the ducts, so that the ventilator can exhaust air to the outside.

The joint flange 32 is formed in a flat plate shape, and extends from the lower end of the joint plate 30 to the pipe connecting portion 31 side and is perpendicular to the joint plate 30 . That is, the joint flange 32 and the pipe connecting portion 31 are located on the same side of the joint plate 30 , and are extended in the same direction as the frame flange 26 . The joint flange 32 is positioned above the frame body flange 26 and parallel to the frame body flange 26 when the joint 3 is mounted on the frame body 2 . When the joint 3 is installed in the frame body 2, the position of the joint flange 32 corresponds to the frame flange recess 26a, and it is inserted into the frame flange recess 26a, and the length extending from the joint plate 30 does not exceed (that is, less than or equal to) the length L1 of the frame body flange 26, that is to say, from the bottom of the frame body 2, the flange of the joint plate 30 can be completely covered by the frame body flange 26, and the joint flange 32 is not provided with openings.

The bending piece 33 is bent and extended at the upper end of the joint plate 30 in the opposite direction of the pipe connecting portion 31 . Hole 33h.

An extension piece 34 of a certain height is extended upward from the end of the bending piece 33 , and a screw mounting piece 34 a is extended from the end of the extension piece 34 in the inner peripheral direction of the frame body 2 to the inner peripheral direction of the frame body 2 . The mounting piece 34a is provided with a screw hole 34b that can be overlapped on the screw post 23 of the frame body after the connector plate 30 is inserted into the mounting space S of the frame body 2 .

The guide rib 35 is longitudinally arranged at a position below the pipe connecting portion 31 from the joint plate 30 , and protrudes from the plane of the joint plate 30 toward the outer peripheral direction of the frame body 2 . During the installation of the joint 3 , the guide ribs 35 can be inserted into the installation space S together with the joint plate 30 . The guide rib 35 has a guide rib inclined surface 35f which is inclined toward the inner peripheral side of the frame body 2 as it goes downward.

The long opening H is longitudinally arranged at the position where the joint plate 30 is located below the pipe connecting portion 31 . Specifically, a protruding portion 36 protruding from the surface of the joint plate 30 toward the outer peripheral side of the frame body 2 is provided from the joint plate 30 at a position below the pipe connecting portion 31 , and the protruding portion 36 is provided on a surface parallel to the joint plate 30 . Long opening H.

The mask 4 is in the shape of a flat plate, and the opening K of the frame body is covered by the mask 4 to close the inner space, and the top wall 20, the side wall 21 and the mask 4 of the frame body 2 form the outer contour of the ventilation device. When the ventilation device is installed on a common ceiling, as shown in Figure 4, the mask 4 is located under the ceiling C (such as a wooden board); when the ventilation device is installed on an integrated ceiling, as shown in Figure 5, the mask 4 and the surrounding gussets G is flush, and the specific installation method is explained below. The mask 4 is provided with an air inlet 4a for indoor air to enter the frame body 2 and a circulating air outlet 4b for the air entering the frame body 2 to be blown out into the room after being heated. The downstream side of the air inlet 4a is provided with a filter 41 which can filter the air sucked in from the air inlet 4a. The mask 4 is provided with a mask recess 43 for installing the filter handle 42 at a position near the air inlet 4a. The mask recess 43 is provided with a mask screw hole 43h, and the mask can be screwed through the mask screw hole 43h and the volute shell screw hole 62h by screws. 4 is fixed on the frame body 2. And after the filter handle 42 is installed, the filter handle 42 can cover the mask screw hole 43h to improve the appearance of the mask 4 .

The air inlet 4a can be formed as a rectangular opening on the mask 4, which is provided on the mask 4 at a position opposite to the position of the opening K of the frame body. When the ventilation device is in the installed state, the air inlet 4a faces the room, and communicates with the room and the inside of the frame 2 through the opening K of the frame. The indoor air can enter the frame body 2 through the air inlet 4a and the frame body opening K.

The circulating air outlet 4b can be formed as a rectangular opening on the mask 4 and is spaced apart from the air inlet 4a to prevent mutual interference between the air inlet 4a and the circulating air outlet 4b. The circulation air outlet 4b may be provided in the vicinity of the ventilation air outlet 25a. When the ventilation device is in the installed state, the circulating air outlet 4b faces the room, and communicates with the room and the inner space of the frame body 2 . The air in the casing 2 is blown into the room through the circulating air outlet 4b. In this embodiment, the circulation outlet 4b and the ventilation outlet 25a have a 90-degree positional relationship and are perpendicular to each other. Therefore, the circulation outlet 4b and the ventilation outlet 25a can be opened and closed by the switch plate 5 described later.

The switch plate 5 is in the shape of a plate and is arranged inside the frame body 2. The position between the ventilation outlet 25a and the circulating air outlet 4b is driven by the switch plate driving device, such as a stepping motor, through the ventilation outlet. 25a and the circulating air outlet 4b are rotated to switch the opening and closing of the ventilation air outlet 25a and the circulating air outlet 4b. Specifically, when the switch plate 5 is rotated to completely cover the ventilation outlet 25a, the air can only be blown out through the circulation outlet 4b; when the switch plate 5 is rotated to completely cover the circulation outlet 4b, the air can only be blown out through the ventilation outlet 4b. The air outlet 25a is blown out; when the switch plate 5 is rotated to cover a part of the ventilation air outlet 25a and a part of the circulating air outlet 4b, the air is blown out from the circulating air outlet 4b and the ventilation air outlet 25a at the same time.

The air blowing part 6 is arranged inside the frame body 2 , and includes a fan 60 , a motor 61 for driving the fan 60 to operate, and a scroll casing 62 .

The side of the fan 60 has a plurality of blades, and the rotation of the fan 60 can generate an air flow drawn into the frame body 2 through the air inlet 4a, and then sent to the circulation air outlet 4b and/or the ventilation air outlet 25a. Fan 60 may be a centrifugal fan.

The motor 61 has a rotating shaft that protrudes into the interior space of the housing 2 . The motor 61 rotates its rotating shaft to drive the fan 60 fixed on the rotating shaft to rotate.

The scroll case 62 is provided to surround the outer periphery of the fan 60 and constitute a part of the top wall 20 and the side wall 21 of the casing 2 . Air is guided to flow from the air inlet 4a to the ventilation air outlet 25a and/or the circulation air outlet 4b through the scroll casing 62 .

The heater 7 is provided in the casing 2, and is located on the downstream side of the air blower 6 and on the upstream side of the circulating air outlet 4b. In this embodiment, the heater 7 is provided on the side closer to the circulating air outlet 4b than the air blower 6 . The heater 7 is used to heat the air blown by the blower 6 to the circulating air outlet 4b, and can increase the temperature of the air sent into the room from the circulating air outlet 4b. This embodiment does not limit the type of the heater 7, for example, it may be a PTC heater or the like.

The circuit board case 8 is arranged side by side with the snail shell 62 . Electrical components are provided in the circuit board case 8 . The electrical components connect and control electrical components such as the motor 61 and the heater 7 .

Next, the installation process of the ventilation device will be described.

Referring to FIG. 5 , when the ventilation device is installed on the integrated ceiling, first install the joint 3 on the frame body 2 , specifically, pass the joint plate 30 from above the top wall 20 of the frame body 2 through the top wall joint installation port 21b and the side wall joint installation opening 21a are inserted into the installation space S inside the frame body 2 until the joint flange 32 abuts against the frame body flange recess 26a. Since the length of the lower portion of the guide rib 35 provided on the joint plate 30 protruding from the joint plate 30 is shorter than that of the upper portion, when the joint plate 30 is inserted into the installation space S, the guide rib 35 is inserted into the installation space S first. 30 protrudes from the lower part of the shorter length, so the joint plate 30 can be easily inserted into the installation space S. After the upper part of the guide rib 35 is inserted into the installation space S along the guide rib inclined surface 35f, since the upper part of the guide rib 35 protrudes from the joint plate 30 for a longer length, the guide rib 35 and the installation space S can be engaged more closely. close. Before the bending piece 33 of the connector 3 contacts the top wall 20 of the frame body 2, the insertion hole 33h of the bending piece 33 is penetrated by the engaging tab 22 protruding upward from the top wall 20 of the frame body 2, because The engaging protruding piece 22 forms an engaging protruding piece inclined surface 22f which is inclined toward the outer peripheral direction of the housing 2 as it goes upward on the side surface facing the inner peripheral direction of the frame body 2 , that is, the cross section of the engaging protruding piece 22 in the horizontal direction is formed. The area is reduced upward, so the upper part of the engaging tab 22 with a smaller horizontal cross-section can be easily inserted into the insertion hole 33h on the bent piece 33, and guided by the inclined surface 22f of the engaging tab, the horizontal direction The lower part of the engaging tab 22 with a larger cross-section can also slide smoothly into the insertion hole 33h, which improves the convenience of installation. At this time, the position of the joint 3 has been temporarily fixed, and the joint 3 is completely fixed to the frame by the screw passing through the screw hole 34b on the screw mounting piece 34a of the joint 3 and the screw hole on the screw column 23 of the top wall 20 of the frame body 2 on body 2. Because the screw posts 23 on the top wall 20 of the frame body 2 are arranged upward from the top wall 20 of the frame body 2 and are not communicated with the interior of the frame body 2 , the screws will not be inserted into the interior of the frame body 2 and cause contact with the frame body 2 . Interference with other parts inside. An extension piece 34 with a certain height is extended upward from the end of the bending piece 33 provided at the end of the joint plate 30 , and the screw mounting piece 34 a is from the end of the extension piece 34 in the inner circumferential direction of the frame body 2 to the inside of the frame body 2 . The circumferential direction is extended, that is, the position of the screw mounting piece 34a can be raised upward through the extension piece 34 to match the height of the screw column 23 protruding from the top wall 20 of the frame body 2, so that the joint plate 30 can be inserted into the installation space of the frame body 2. After S, the screw holes 34b on the screw mounting pieces 34a may overlap with the screw holes on the frame body screw posts 23 above the screw holes on the frame body screw posts 23 . Next, insert the frame body 2 and the joint 3 that have been fixed together into the opening left by the gusset plate that has been removed in advance, and fix the frame body 2 on the roof by means of screws. The specific method of fixing the electrical body by means of screws belongs to those skilled in the art The well-known prior art is not described in detail here. Finally, the mask 4 is fixed on the frame body 2 through the screw through the mask screw hole 43h and the volute shell screw hole 62h to complete the installation.

Please refer to FIG. 4, when the ventilation device is installed on a common suspended ceiling, a ceiling opening that is larger than the frame opening K and smaller than the total size of the frame opening K plus the frame flange 26 is cut on the ceiling C in advance; Then put the joint 3 through the ceiling opening until the joint flange 32 at the lower end of the joint plate 30 is close to the ceiling C on the edge of the ceiling opening, and then the joint flange 32 and the protrusion 36 provided on the joint plate 30 are close to the ceiling. C. Since the ceiling C itself has a certain thickness, the joint 3 can be fixed on the ceiling C with screws through the long opening H and the side surface of the ceiling C from the side of the joint plate 30 facing the ceiling opening. That is to say, there is no need to set screw holes on the joint flange 32, and the joint flange 32 only plays the role of positioning the ceiling C during the installation of the joint 3. Therefore, the size of the joint flange 32 itself, that is, the joint flange 32 The length extending from the lower end of the joint plate 30 can be set to be shorter than that in the prior art. After the joint 3 is fixed on the ceiling C, the side wall 21 provided with the side wall joint installation opening 21a is directed towards the joint 3 side, the frame body 2 is pushed through the ceiling opening to the roof direction, and the joint plate 30 is removed from the top wall joint installation opening 21b. and the side wall joint installation port 21a enter into the installation space S inside the frame body 2. Since the lower part of the guide rib 35 provided on the joint plate 30 protrudes from the joint plate 30 in a shorter length than the upper part, the installation space S is placed in the guide rib 30. It is relatively easy for the rib 35 to protrude from the lower part of the joint plate 30 with a shorter length. In addition, it can slide along the inclined surface 35f of the guide rib. When sliding to the upper part of the guide rib 35, the upper part of the guide rib 35 protrudes from the joint plate 30. The length of the guide rib 35 is longer, so the guide rib 35 and the installation space S can be engaged more closely. That is to say, in the process of pushing the frame body 2 toward the roof, the construction personnel can easily cover the installation space S of the frame body 2 outside the joint plate 30 from below the joint plate 30, which improves the convenience of installation. Before the top wall 20 of the frame body 2 contacts the bending piece 33 of the joint 3, the engaging tab 22 protruding upward from the top wall 20 of the frame body 2 is inserted into the insertion hole 33h of the bending piece 33, because The engaging protruding piece 22 forms an engaging protruding piece inclined surface 22f which is inclined toward the outer peripheral direction of the housing 2 as it goes upward on the side surface facing the inner peripheral direction of the frame body 2 , that is, the cross section of the engaging protruding piece 22 in the horizontal direction is formed. The area is reduced upward, so the upper part of the engaging tab 22 with a smaller horizontal cross-section can be easily inserted into the insertion hole 33h on the bent piece 33, and guided by the inclined surface 22f of the engaging tab, the horizontal direction The lower part of the engaging tab 22 with a larger cross-section can also slide smoothly into the insertion hole 33h, which improves the convenience of installation.

When the frame flange 26 contacts the lower surface of the ceiling C, the frame flange recess 26a is located below the joint flange 32, in other words, the joint flange 32 is inserted into the frame flange recess 26a, so that the upper surface of the joint flange 32 The upper surface of the frame flange 26 is basically located on the same plane, and the position corresponding to the joint flange 32 on the frame flange 26 will not be tilted downward due to being held up by the joint flange 32. There is no gap between the ceilings C. Even if the construction personnel penetrate the frame flange screw holes 26b and the ceiling C with screws from below the frame flange 26 to install the frame 2 on the ceiling C, the frame flange 26 will not be installed. It will be deformed by being resisted by the joint flange 32 . After the frame body 2 is installed on the ceiling C, the mask 4 is fixed to the frame body 2 by passing screws through the mask screw holes 43h and the volute shell screw holes 62h. Finally, the filter screen 41 is inserted into the upstream side of the air inlet 4a to complete the installation. As described above, when the connector 3 is installed on the frame body 2, the connector plate 30 is inserted into the installation space S inside the frame body 2, that is, the connector plate 30 is not protruded from the vacant space inside the frame body 2. With the side wall 21 of the frame body 2 provided with the side wall joint installation port 21a, even if the size of the mask 4 is reduced to accommodate the installation of the integrated ceiling, the bottom of the joint plate 30 will not protrude from the edge of the mask 4 to cause air leakage. And the joint flange 32 disposed at the lower end of the joint plate 30 does not need to be provided with screw holes, and the length extending from the lower end of the joint plate 30 can be set to be shorter than that of the background art, so even if the size of the mask 4 is suitable for the integrated ceiling. The installation is reduced, and the joint flange 32 will not protrude from the edge of the mask 4 to cause air leakage.

Claims (11)

A ventilation device, characterized in that: comprising: The frame body is a hollow structure with a top wall and a side wall, a frame body opening is formed at the bottom and an interior space for accommodating an air supply part for ventilation is formed inside; a frame body flange, extending from the bottom of the side wall of the frame body to the outer peripheral direction of the frame body; a face mask, covering the frame body opening and the frame body flange at the bottom of the frame body; a joint, used to connect the inner space of the frame body and the outer space of the frame body, and has a joint plate installed inside the frame body and a pipe connection part extending from the joint plate to the downstream side; The side wall joint installation port is arranged on the side wall of the frame body and is used for installing the joint; The ventilation outlet wall is arranged in the inner space of the frame body, and is located on the upstream side of the side wall joint installation port; The ventilation outlet is arranged on the wall of the ventilation outlet, and is arranged opposite to the side wall joint installation port; An installation space for installing the joint plate is formed between the side wall provided with the side wall joint installation port and the wall of the ventilation outlet. The ventilation device according to claim 1, wherein: The frame body further includes a connecting piece, and the connecting piece is formed by horizontally extending the inner surface of the side wall with the side wall joint installation opening toward the inner peripheral direction of the frame; The ventilation outlet wall is formed by the upward extension of the end of the connecting piece close to the inner periphery of the frame, and is arranged opposite to the side wall provided with the side wall joint installation port; The installation space is composed of the side wall provided with the side wall joint installation port, the connecting piece and the ventilation outlet wall, and can be inserted into the joint plate. The ventilation device according to claim 2, wherein: The top wall of the frame body is provided with a top wall joint installation port, the top wall joint installation port is communicated with the side wall joint installation port, and the joint plate can be inserted from the top wall side of the frame body. The ventilation device according to claim 3, wherein: The top wall of the frame body is provided with a snap-fit tab protruding upward from the top wall near the top wall joint installation opening; The upper end of the joint plate is bent in the opposite direction of the pipe connecting part to form a bent piece; The bending piece is provided with an insertion hole into which the engaging tab can be inserted. The ventilation device according to claim 4, wherein: The side surface of the engaging protrusion facing the inner peripheral direction of the casing is an engaging protrusion inclined surface, and the inclined surface of the engaging protrusion is inclined toward the outer peripheral direction of the casing as it goes upward. The ventilation device according to claim 5, wherein: The frame body flange is provided with a frame body flange concave portion formed by concave downward from its upper surface, and the frame body flange concave portion is located in the frame at the bottom of the side wall provided with the side wall joint installation port. body flange; A joint flange is provided on the lower end of the joint plate facing the pipe connecting portion side, the joint flange is perpendicular to the joint plate, and can be inserted into the recess of the frame flange. The ventilation device according to claim 6, wherein: The top wall of the frame body is provided with a screw column protruding from the top wall near the ventilation outlet; An extension piece is upwardly extended from the end of the bent piece of the joint; A screw mounting piece is extended from the end of the extension piece to the inner peripheral direction of the frame body; The screw mounting piece is provided with a screw hole which can be overlapped with the opening of the screw column. The ventilation device according to claim 7, wherein: The joint plate is provided with a longitudinal guide rib at the position below the pipe connection portion, and the guide rib is formed to protrude from the plane of the joint plate to the outer peripheral direction of the frame body, and can be inserted into the installation space and the guide rib has a guide rib inclined surface which is inclined toward the inner peripheral side of the frame as it goes downward. The ventilation device according to claim 8, wherein: The outer periphery of the ventilation outlet is provided with a water blocking sheet which can block the liquid from flowing into the ventilation outlet. The ventilation device according to claim 9, wherein the ventilation outlet is in a square shape, the water blocking sheet comprises an upper water blocking sheet, two side water blocking sheets and a connecting water blocking sheet, and the upper side water blocking sheet The water baffles are arranged on the top wall and are closer to the inner periphery of the frame than the upper edge of the ventilation outlet; the water baffles on both sides are arranged on the side walls and are located on the ventilation outlet. Two longitudinal sides of the air outlet; the connecting water blocking sheet is connected to the end of the upper water blocking sheet and the ends of the two side water blocking sheets. The ventilating device according to any one of claims 1 to 10, wherein the joint plate is provided with a longitudinally long opening at a position below the pipe connecting portion.

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