Motor housing of electric air valve and electric air valve

Abstract

The utility model provides a motor cover of an electric air valve and an electric air valve, and relates to the technical field of check valves. The motor cover of the electric air valve provided by the utility model comprises: a box body, the box body comprises a fitting surface, the fitting surface is consistent in shape with the mounting surface on the valve body, so that the fitting surface is tightly against the mounting surface; a card slot is provided on the fitting surface, the card slot runs through the inside and outside of the box body, and the card slot is used to clamp the wiring harness of the motor between the card slot and the mounting surface after the motor cover is connected to the valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a motor housing of an electric air valve and the electric air valve. Background Art

[0002] In order to solve the problems of oil fume backflow and odor in public flues of high-rise residential buildings, many electric damper products are currently launched on the market.

[0003] The electric air valve includes a circular valve body, a motor and a motor cover. The motor is fixed on the outer wall of the circular valve body. The motor cover is connected to the outer wall of the circular valve body and covers the outside of the motor. A connector is provided on the motor cover. The inner end of the connector is connected to the motor, and the outer end of the connector is connected to the wiring harness, so that the wiring harness is electrically connected to the motor.

[0004] The provision of the connector not only creates a risk of short circuit, but also increases production costs. Utility Model Content

[0005] The utility model aims to provide a motor housing of an electric air valve and an electric air valve, so as to alleviate the technical problems that the joints of the existing electric air valves are prone to short circuit and the manufacturing cost is high.

[0006] In a first aspect, the utility model provides a motor housing of an electric damper, comprising: a box body, the box body comprising a fitting surface, the fitting surface having a shape consistent with a mounting surface on a valve body, so that the fitting surface is closely attached to the mounting surface;

[0007] The fitting surface is provided with a slot which passes through the inside and outside of the box body, and is used for clamping the wiring harness of the motor between the slot and the mounting surface after the motor housing is connected to the valve body.

[0008] Furthermore, the fitting surface is an arc-shaped curved surface or a right-angled surface.

[0009] Further, in the length direction of the arc-shaped curved surface, the fitting surface is an arc-shaped curved surface, the box body comprises a first side wall and a second side wall which are parallel and spaced apart, the top ends of the first side wall and the second side wall are connected by a top wall, the lower end of the second side wall is connected with a slot wall, and in a direction from the top of the second side wall to the bottom, the slot wall is inclined toward a side close to the first side wall;

[0010] The lower end surface of the slot wall is a part of the fitting surface, and the slot is arranged on the lower end surface of the slot wall.

[0011] Furthermore, in the length direction of the arc-shaped curved surface, the box body includes a first side wall and a second side wall that are parallel and spaced apart, and the top ends of the first side wall and the second side wall are connected by a top wall;

[0012] The lower end of the second side wall is connected to an extension wall, and the lower end of the extension wall is connected to a slot wall. From the top to the bottom of the second side wall, the extension wall is inclined toward a side away from the first side wall, and the slot wall is inclined toward a side close to the first side wall;

[0013] The lower end surface of the slot wall is a part of the fitting surface, and the slot is arranged on the lower end surface of the slot wall.

[0014] Furthermore, the included angle between the slot wall and the tangent line of the arc-shaped curved surface where the slot wall is located is 90°.

[0015] Further, along the direction from the top end to the bottom end, the length of the first side wall is shorter than the length of the second side wall.

[0016] Furthermore, in the length direction of the arc-shaped curved surface, at least two connection structures connected to the valve body are arranged on the box body.

[0017] Furthermore, the connection structure includes a screw hole.

[0018] In a second aspect, the utility model provides an electric air valve, comprising a valve body, a motor and the above-mentioned motor housing;

[0019] The tail end of the motor has a wiring harness, and a buckle is arranged on the wiring harness. The motor and the motor cover are both connected to the valve body, and the motor cover is arranged on the outside of the motor;

[0020] The clamping groove cooperates with the outer wall of the valve body to clamp the buckle, so that a part of the wiring harness is located inside the motor cover, and a part is located outside the motor cover.

[0021] Furthermore, the motor housing and the valve body are connected via at least two connecting members.

[0022] The utility model has at least the following advantages or beneficial effects:

[0023] The motor cover of the electric air valve provided by the utility model comprises: a box body, the box body comprises a fitting surface, the fitting surface is consistent in shape with the mounting surface on the valve body, so that the fitting surface is in close contact with the mounting surface; a card slot is provided on the fitting surface, the card slot runs through the inside and outside of the box body, and the card slot is used to clamp the wiring harness of the motor between the card slot and the mounting surface after the motor cover is connected to the valve body.

[0024] When assembling the electric air valve, the motor can be connected to the valve body first, and then the motor cover can be connected. Specifically, the wire harness connected to the motor is straightened, so that the wire harness is aligned and inserted into the slot, and then the fitting surface of the motor cover is tightly attached to the outer wall of the valve body. The wire harness is stopped by the outer wall of the valve body, and the wire harness will not move out of the slot, so that the wire harness and the motor cover form a stable connection relationship. The slot is set on the fitting surface of the motor cover, and the wire harness is stopped and limited in coordination with the outer wall of the valve body to complete the fixing of the wire harness. In this way, there is no need to set a connector for connecting the motor and the wire harness on the outer wall of the box body, which reduces the cost. In addition, the wire harness and the motor can be an integral structure, which reduces the number of electrical connection points and reduces the risk of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of a motor housing of an electric air valve provided in Example 1 of the utility model;

[0027] Figure 2 A cross-sectional view of a motor housing of an electric air valve provided in Example 1 of the utility model;

[0028] Figure 3 A schematic diagram of the motor housing and valve body of the electric air valve provided in Example 1 of the utility model after being connected;

[0029] Figure 4 A schematic diagram of the internal structure of the electric air valve after the motor housing and the valve body are connected to each other provided in Example 1 of the utility model;

[0030] Figure 5 A schematic diagram of a motor housing of an electric air valve provided in Example 2 of the utility model;

[0031] Figure 6 A schematic diagram of the connection between the motor housing and the valve body of the electric air valve provided in Example 2 of the utility model;

[0032] Figure 7 This is a schematic diagram of the internal structure of the electric air valve after the motor cover and valve body are connected provided in Example 2 of the utility model.

[0033] Icons: 1-fitting surface; 2-valve body; 3-slot; 4-buckle; 5-motor; 6-motor bracket; 7-first side wall; 71-first screw hole; 8-second side wall; 81-slot wall; 82-connecting wall; 83-second screw hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] The motor cover of the electric air valve provided by the utility model can protect the motor 5 and isolate the oil smoke.

[0042] like Figure 1 - Figure 4 As shown, specifically, the motor housing includes a box body, and the box body includes a fitting surface 1, and the fitting surface 1 has the same shape as the mounting surface on the valve body 2, so that the fitting surface 1 is in close contact with the mounting surface.

[0043] like Figure 3 As shown, the box body may have a left side wall, a front side wall, a right side wall, a rear side wall and a top wall connected to each other, the bottom end of the box body is open, and the open end surface of the box body forms the above-mentioned fitting surface 1, and the shape of the fitting surface 1 corresponds to the valve body 2. In this embodiment, the valve body 2 is a cylindrical structure, so the fitting surface 1 is also an arc-shaped curved surface. Of course, when the shape of the valve body 2 changes, the shape of the corresponding fitting surface 1 also needs to be changed. For example, when the valve body is a rectangular pipe, the fitting surface 1 can be a right-angled surface.

[0044] A card slot 3 is provided on the fitting surface 1, and the card slot 3 runs through the inside and outside of the box body. The card slot 3 is used to clamp the wiring harness of the motor 5 between the card slot 3 and the mounting surface after the motor cover is connected to the valve body 2, wherein a buckle 4 corresponding to the card slot can be provided on the wiring harness to increase the limiting effect.

[0045] like Figure 1As shown, the fitting surface 1 has a slot 3 extending upward away from the fitting surface 1. When the electric air valve is assembled, the motor 5 can be connected to the valve body 2 first, and then the motor housing can be connected. Specifically, the wire harness connected to the motor 5 is straightened, and the buckle 4 on the wire harness is aligned and inserted into the slot 3, and then the fitting surface 1 of the motor housing is tightly attached to the outer wall of the valve body 2. The buckle 4 is stopped by the outer wall of the valve body 2, and the wire harness will not move out of the slot 3. At the same time, the buckle 4 is stopped by the slot 3, and the wire harness will not move relative to the motor housing in the inner and outer directions, so that the wire harness and the motor housing form a stable connection relationship. The slot 3 is set on the fitting surface 1 of the motor housing, and the buckle 4 is stopped and limited by the outer wall of the valve body 2 to complete the fixing of the wire harness. In this way, it is not necessary to set a joint for connecting the motor 5 and the wire harness on the outer wall of the box body, which reduces the cost. In addition, the wire harness and the motor 5 can be an integral structure, which reduces the electrical connection points and reduces the risk of short circuit.

[0046] In the length direction of the arc-shaped curved surface, the box body includes a first side wall 7 and a second side wall 8 which are arranged in parallel and at intervals, and the top ends of the first side wall 7 and the second side wall 8 are connected by a top wall. A slot wall 81 is connected to the lower end of the second side wall 8, and from the top to the bottom of the second side wall 8, the slot wall 81 is inclined toward the side close to the first side wall 7; the lower end surface of the slot wall 81 is a part of the fitting surface 1, and the slot 3 is arranged on the lower end surface of the slot wall 81.

[0047] In this embodiment, the first side wall 7 and the second side wall 8 are the left side wall and the right side wall respectively. The slot wall 81 connected to the lower end of the second side wall 8 is in an inclined state, which is inclined toward the inside of the box body, and the lower end surface of the slot wall 81 can be coplanar with the fitting surface 1. The retracted slot wall 81 can play a hiding role, and can effectively utilize the internal space of the motor housing without occupying the external space.

[0048] In order to achieve sealing, the front edge and the rear edge of the slot wall 81 are connected to the front side wall and the right side wall. That is to say, when the box body is connected to the valve body 2, the side wall of the box body basically separates the inside and outside of the box body, reducing the entry of oil into the box body.

[0049] like Figure 2 As shown, the angle θ between the slot wall 81 and the tangent line of the arc-shaped curved surface where the slot wall 81 is located is 90°, and the slot wall 81 can be vertically pressed on the outer wall of the valve body 2 so that the slot 3 is engaged with the wire harness buckle 4.

[0050] Along the direction from the top end to the bottom end, the length of the first side wall 7 is shorter than the length of the second side wall 8 .

[0051] like Figure 4As shown, the head of the motor 5 is close to the first side wall 7, the tail of the motor 5 is close to the second side wall 8, and the tail of the motor 5 leads out the wire harness. The reason for setting the second side wall 8 longer than the first side wall 7 is to give the wire harness a certain space. The shape of the internal space of the box body is consistent with the overall appearance of the motor 5 with the wire harness, and shape matching installation is achieved, which can minimize the volume of the motor 5 housing.

[0052] In the length direction of the arc-shaped curved surface, at least two connection structures connected to the valve body 2 are arranged on the box body.

[0053] The motor housing and the valve body 2 can be connected by two-point positioning, and the connection stability is sufficient to meet the requirements.

[0054] Specifically, Figure 1 As shown, in this embodiment, a first screw hole 71 can be provided on the first side wall 7, and the first screw hole 71 is perpendicular to the first side wall 7. After the screw passes through the first screw hole 71, it is connected with the screw hole on the motor bracket 6. It should be noted that the motor bracket 6 is used to connect the motor 5 with the valve body 2. Before installing the motor cover, the motor bracket 6 and the valve body 2 need to be connected together by screws, and then the motor 5 is connected to the motor bracket 6. In addition, a second screw hole 83 can be provided on the second side wall 8, and the second screw hole 83 extends inwardly and has a certain length, so as to ensure the connection strength. The screw passes through the valve body 2 and is connected to the second screw hole 83, so that the motor cover and the valve body 2 are fixed together by two screws.

[0055] Example 2

[0056] like Figure 5 - Figure 7 As shown, unlike the inwardly retracted slot wall 81 in Example 1, the slot wall 81 in this embodiment is convex. Specifically, in the length direction of the arc-shaped curved surface, the box body includes a first side wall 7 and a second side wall 8 that are parallel and spaced apart, and the top ends of the first side wall 7 and the second side wall 8 are connected by a top wall.

[0057] In this embodiment, the first side wall 7 and the second side wall 8 are the left side wall and the right side wall respectively.

[0058] The lower end of the second side wall 8 is connected to an extension wall, and the lower end of the extension wall is connected to a slot wall 81. From the top to the bottom of the second side wall 8, the extension wall is inclined toward the side away from the first side wall 7, and the slot wall 81 is inclined toward the side close to the first side wall 7; the lower end surface of the slot wall 81 is a part of the fitting surface 1, and the slot 3 is arranged on the lower end surface of the slot wall 81.

[0059] The connecting wall 82 and the slot wall 81 are connected together in a manner of continuous inclination with different inclination directions. Both the connecting wall 82 and the slot wall 81 protrude from the second side wall 8. The lower end surface of the slot wall 81 can fit the outer wall of the valve body 2 to clamp and fix the wiring harness buckle 4 of the motor 5. Unlike the retracted slot wall 81 in embodiment 1, the slot wall 81 in this embodiment is convex. The advantage is that the injection mold structure of the motor housing is relatively simple, but the convex structure will occupy more external space, which will increase the difficulty of installation when the air valve installation space is limited.

[0060] The first screw hole 71 on the first side wall 7 is arranged in the same manner as in Example 1, except that in this embodiment, the second screw hole 83 is arranged on the connecting wall 82. In other feasible solutions, the second screw hole 83 may also be arranged on the second side wall 8.

[0061] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the electric air valve provided by the utility model includes a valve body 2, a motor 5 and the above-mentioned motor cover; the tail end of the motor 5 has a wiring harness, and a buckle 4 is arranged on the wiring harness, the motor 5 and the motor cover are both connected to the valve body 2, and the motor cover is arranged on the outside of the motor 5; the slot 3 cooperates with the outer wall of the valve body 2 to clamp the buckle 4, so that a part of the wiring harness is located on the inside of the motor cover, and a part is located on the outside of the motor cover.

[0062] When assembling the electric air valve, the motor 5 can be connected to the valve body 2 first, and then the motor housing can be connected. Specifically, the wire harness connected to the motor 5 is straightened, and the buckle 4 on the wire harness is aligned and inserted into the slot 3, and then the fitting surface 1 of the motor housing is tightly attached to the outer wall of the valve body 2. The buckle 4 is stopped by the outer wall of the valve body 2, and the wire harness will not move out of the slot 3. At the same time, the buckle 4 is stopped by the slot 3, and the wire harness will not move relative to the motor housing in the inner and outer directions, so that the wire harness and the motor housing form a stable connection relationship. The slot 3 is set on the fitting surface 1 of the motor housing, and the buckle 4 is stopped and limited in cooperation with the outer wall of the valve body 2 to complete the fixing of the wire harness. In this way, there is no need to set a connector for connecting the motor 5 and the wire harness on the outer wall of the box body, which reduces the cost. In addition, the wire harness and the motor 5 can be an integral structure, which reduces the number of electrical connection points and reduces the risk of short circuit.

[0063] The motor housing and the valve body 2 can be connected by two left and right connecting members, such as screws.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A motor housing of an electric damper, characterized in that: include: A box body, the box body comprising a fitting surface (1), the fitting surface (1) being consistent in shape with a mounting surface on a valve body (2), so that the fitting surface (1) is in close contact with the mounting surface; The fitting surface (1) is provided with a slot (3), the slot (3) running through the inside and outside of the box body, and the slot (3) is used to clamp the wiring harness of the motor (5) between the slot (3) and the mounting surface after the motor housing is connected to the valve body (2).

2. The motor housing of the electric damper according to claim 1, characterized in that: The fitting surface (1) is an arc-shaped curved surface or a right-angled surface.

3. The motor housing of the electric damper according to claim 1, characterized in that: The fitting surface (1) is an arc-shaped curved surface. In the length direction of the arc-shaped curved surface, the box body comprises a first side wall (7) and a second side wall (8) which are parallel and spaced apart. The top ends of the first side wall (7) and the second side wall (8) are connected via a top wall. The lower end of the second side wall (8) is connected with a slot wall (81). From the top of the second side wall (8) toward the bottom, the slot wall (81) is inclined toward a side close to the first side wall (7). The lower end surface of the slot wall (81) is a part of the fitting surface (1), and the slot (3) is arranged on the lower end surface of the slot wall (81).

4. The motor housing of the electric damper according to claim 2, characterized in that: In the length direction of the arc-shaped curved surface, the box body comprises a first side wall (7) and a second side wall (8) which are arranged in parallel and at intervals, and the top ends of the first side wall (7) and the second side wall (8) are connected by a top wall; The lower end of the second side wall (8) is connected to an extension wall, and the lower end of the extension wall is connected to a slot wall (81), and from the top to the bottom of the second side wall (8), the extension wall is inclined toward a side away from the first side wall (7), and the slot wall (81) is inclined toward a side close to the first side wall (7); The lower end surface of the slot wall (81) is a part of the fitting surface (1), and the slot (3) is arranged on the lower end surface of the slot wall (81).

5. The motor housing of the electric damper according to claim 3 or 4, characterized in that: The included angle between the slot wall (81) and the tangent line of the arc-shaped curved surface where the slot wall (81) is located is 90°.

6. The motor housing of the electric damper according to claim 3 or 4, characterized in that: Along the direction from the top end to the bottom end, the length of the first side wall (7) is shorter than the length of the second side wall (8).

7. The motor housing of the electric damper according to claim 2, characterized in that: In the length direction of the arc-shaped curved surface, at least two connection structures connected to the valve body (2) are arranged on the box body.

8. The motor housing of the electric damper according to claim 7, characterized in that: The connection structure includes a screw hole.

9. An electric air valve, characterized in that: It comprises a valve body (2), a motor (5) and a motor housing as claimed in any one of claims 1 to 8; The tail end of the motor (5) has a wiring harness, and a buckle (4) is provided on the wiring harness. The motor (5) and the motor cover are both connected to the valve body (2), and the motor cover is arranged on the outside of the motor (5); The clamping groove (3) cooperates with the outer wall of the valve body (2) to clamp the buckle (4), so that a part of the wiring harness is located inside the motor housing, and a part is located outside the motor housing.

10. The electric damper according to claim 9, characterized in that: The motor housing and the valve body (2) are connected via at least two connecting pieces.

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