Alternating current motor terminal compartment sealing device

Abstract

The utility model discloses an alternating current motor wiring bin sealing device, including wiring bin body, sealing washer, wiring bin cover and motor shell, wiring bin body lower extreme is connected with motor shell, and the top of wiring bin body is equipped with the opening, and the upper along outside of bin frame of wiring bin body is equipped with screw hole, and the upper along inside of bin frame of wiring bin body is equipped with the sealing washer groove same with the shape of opening, and the both sides of sealing washer groove are equipped with a plurality of outward positioning tooth slot, and sealing washer and sealing washer groove correspond to cooperate, and the both sides of sealing washer correspond to cooperate positioning tooth and are equipped with the positioning tooth of positioning tooth slot, and sealing washer, positioning tooth are placed in sealing washer groove, positioning tooth slot respectively, and sealing washer top is equipped with the washer layer, and washer layer is higher than sealing washer groove, and the shape of wiring bin cover is same with the shape of wiring bin body top, and wiring bin cover is equipped with the positioning hole corresponding with screw hole. The utility model discloses when alternating current motor wiring bin sealing assembly, not only prevents the string of sealing washer, and wiring bin cover and wiring bin body seal well.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a sealing device for the wiring compartment of an AC motor. Background Technology

[0002] Because cable connections are required inside the motor wiring compartment, there are certain electrical requirements, making the waterproof and sealing performance of the compartment extremely important. In harsh working environments, moisture and dust can easily enter the compartment without a waterproof seal, causing water ingress and dampness into the internal cables, severely impacting the motor's lifespan and safety performance.

[0003] Currently, AC motors use conventional sealing rings installed on the terminal compartment cover to seal the terminal compartment. During assembly, the sealing ring is prone to slipping out of the sealing ring groove or falling off when it is placed in the sealing ring groove, resulting in poor sealing of the terminal compartment, which affects the waterproof performance and safety performance of the motor. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an AC motor terminal compartment sealing device that, when the sealing ring is placed into the sealing ring groove during the sealing assembly of the AC motor terminal compartment, not only will it not run out of the sealing ring groove, but the sealing ring will also not easily fall off, and there will be no situation of poor sealing of the terminal compartment. The device also has a simple structure.

[0005] To solve the above-mentioned technical problems, this utility model adopts an AC motor terminal compartment sealing device, including a terminal compartment body, a sealing ring, a terminal compartment cover, and a motor housing. The lower end of the terminal compartment body is connected to the motor housing. The top of the terminal compartment body has an opening. The outer side of the upper edge of the compartment frame of the terminal compartment body has screw holes. The inner side of the upper edge of the compartment frame of the terminal compartment body has a sealing ring groove with the same shape as the opening. Several outward positioning tooth grooves are provided on both sides of the sealing ring groove. The sealing ring mates with the sealing ring groove. Positioning teeth are provided on both sides of the sealing ring corresponding to the positioning tooth grooves. The sealing ring and positioning teeth are respectively placed in the sealing ring groove and the positioning tooth groove. A gasket layer is provided on the top of the sealing ring, and the gasket layer is higher than the sealing ring groove. The shape of the terminal compartment cover is the same as the shape of the top of the terminal compartment body. The terminal compartment cover has positioning holes corresponding to the screw holes.

[0006] In a preferred embodiment of this utility model, the positioning groove is rectangular and distributed at intervals along the sealing ring groove. The positioning teeth are also rectangular and distributed at intervals along the sealing ring groove, and the positioning teeth are configured to cooperate with the positioning groove.

[0007] In a preferred embodiment of this utility model, the wiring compartment body is cuboid, the opening at the top of the wiring compartment body is rectangular, the sealing ring groove is rectangular and the positioning tooth groove is provided on both sides, the sealing ring is rectangular and the positioning tooth is provided on both sides, the sealing ring and the positioning tooth are respectively corresponding to and cooperate with the sealing ring groove and the positioning tooth groove, the four corners of the outer edge of the frame of the wiring compartment body and the outer side of the sealing ring groove are provided with four screw holes, and the wiring compartment cover is provided with four positioning holes corresponding to the screw holes.

[0008] In a preferred embodiment of this utility model, the positioning grooves are symmetrically distributed along the left and right centerlines and / or the front and back centerlines of the sealing ring grooves on both sides of the sealing ring groove, and the positioning teeth corresponding to the positioning grooves are symmetrically distributed along the left and right centerlines and / or the front and back centerlines of the sealing ring on both sides of the sealing ring.

[0009] In a preferred embodiment of this utility model, twelve positioning grooves are spaced apart on both sides of the rectangular sealing ring groove. One positioning groove is located at the midpoint of the left side of the left groove, and two positioning grooves are spaced apart on the right side of the left groove, symmetrically arranged with the midpoint of the right side of the left groove as the symmetry point. Three positioning grooves are located on the right side of the sealing ring groove, symmetrically arranged with the three positioning grooves of the left groove and the left and right center lines of the sealing ring groove as the symmetry line. One positioning groove is located at the midpoint of the rear side of the front groove of the sealing ring groove, and two positioning grooves are spaced apart on the front side of the front groove, symmetrically arranged with the midpoint of the front side of the front groove as the symmetry point. Three positioning grooves are located on the rear groove of the sealing ring groove, symmetrically arranged with the three positioning grooves of the rear groove and the three positioning grooves of the front groove and the front and rear center lines of the sealing ring groove as the symmetry line. Twelve positioning teeth are spaced apart on both sides of the sealing ring, and the twelve positioning teeth are respectively matched with the twelve positioning grooves.

[0010] In a preferred embodiment of this utility model, the cross-section of the gasket layer is semi-circular.

[0011] In a preferred embodiment of this utility model, the wiring compartment body and the motor housing are integrally formed as a single piece.

[0012] In a preferred embodiment of this utility model, the sealing ring, positioning teeth and gasket layer are integrally formed as a single piece.

[0013] By adopting the above structure, this utility model has the following beneficial effects:

[0014] This utility model relates to a sealing device for an AC motor terminal compartment, comprising a terminal compartment body, a sealing ring, a terminal compartment cover, and a motor housing. The lower end of the terminal compartment body is connected to the motor housing. The top of the terminal compartment body has an opening. The outer side of the upper edge of the compartment frame of the terminal compartment body has screw holes. The inner side of the upper edge of the compartment frame of the terminal compartment body has a sealing ring groove with the same shape as the opening. Several outward positioning tooth grooves are provided on both sides of the sealing ring groove. The sealing ring mates with the sealing ring groove. Positioning teeth are provided on both sides of the sealing ring corresponding to the positioning tooth grooves. The sealing ring and positioning teeth are respectively placed in the sealing ring groove and the positioning tooth groove. A gasket layer is provided on the top of the sealing ring, and the gasket layer is higher than the sealing ring groove. The shape of the terminal compartment cover is the same as the shape of the top of the terminal compartment body. The terminal compartment cover has positioning holes corresponding to the screw holes. In the sealing assembly of the AC motor terminal compartment, the structure of the positioning groove and the positioning teeth prevents the sealing ring from moving around, ensuring that the sealing ring will not run out of the sealing ring groove when it is put in, and that the sealing ring will not easily fall off after being put in. The structure of the gasket layer further improves the sealing of the terminal compartment. The structure of the screw hole and the positioning hole allows the terminal compartment cover to be connected to the terminal compartment body by screws. The terminal compartment cover tightly presses the sealing ring, which enhances the waterproof performance and safety performance of the motor.

[0015] The positioning grooves of this invention are rectangular and spaced apart along the sealing ring grooves. The positioning teeth, corresponding to the positioning grooves, are also rectangular and spaced apart along the sealing ring, and are configured to mate with the positioning grooves. This structure ensures a tighter fit between the positioning teeth and the positioning grooves, further preventing the sealing ring from shifting.

[0016] The wiring compartment body of this utility model is rectangular, with a rectangular opening at the top. The sealing ring groove is rectangular and has positioning tooth grooves on both sides. The sealing ring is rectangular and has positioning teeth on both sides. The sealing ring and positioning teeth are respectively configured to mate with the sealing ring groove and positioning tooth groove. Four screw holes are opened at the four outer corners of the upper edge of the wiring compartment frame and outside the sealing ring groove. The wiring compartment cover has four positioning holes corresponding to the screw holes. This structure is suitable for practical needs.

[0017] The positioning grooves of this invention are symmetrically distributed along the left and right centerlines and / or front and back centerlines of the sealing ring grooves on both sides of the sealing ring groove. Corresponding to the positioning grooves, the positioning teeth are symmetrically distributed along the left and right centerlines and / or front and back centerlines of the sealing ring on both sides of the sealing ring. This structure facilitates installation.

[0018] The present invention comprises a rectangular sealing ring groove with twelve positioning grooves spaced apart on both sides. One positioning groove is located at the midpoint of the left side of the left groove, and two positioning grooves are spaced apart on the right side of the left groove, symmetrically arranged with the midpoint of the right side of the left groove as the symmetry point. Three positioning grooves are located on the right side of the sealing ring groove, symmetrically arranged with the three positioning grooves of the left groove and the left and right center lines of the sealing ring groove as the symmetry line. One positioning groove is located at the midpoint of the rear side of the front groove of the sealing ring groove, and two positioning grooves are spaced apart on the front side of the front groove, symmetrically arranged with the midpoint of the front side of the front groove as the symmetry point. Three positioning grooves are located on the rear groove of the sealing ring groove, symmetrically arranged with the three positioning grooves of the front groove and the front and rear center lines of the sealing ring groove as the symmetry line. Twelve positioning teeth are spaced apart on both sides of the sealing ring, and each of the twelve positioning teeth corresponds to and engages with one of the twelve positioning grooves. This results in a simpler structure, better positioning of the sealing ring, easier processing and installation, better anti-loosening and sealing effects, and a more aesthetically pleasing appearance.

[0019] The gasket layer of this invention has a semi-circular cross-section. This structure allows for better and tighter contact between the junction box cover and the gasket layer, further improving the sealing effect.

[0020] The wiring compartment body and the motor housing described in this invention are integrally molded as a single piece. This facilitates processing and ensures a robust structure.

[0021] The sealing ring, positioning teeth, and gasket layer of this invention are integrally molded as a single piece. This facilitates processing, provides a stable structure, and offers excellent anti-movement, anti-detachment, and sealing performance.

[0022] This utility model has a simple structure, is easy to implement, simple to install and operate, and has low manufacturing cost. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional schematic diagram of the structure of the AC motor wiring compartment sealing device of this utility model.

[0025] Figure 2 This is a three-dimensional schematic diagram of the sealing ring groove of this utility model.

[0026] Figure 3 This is a three-dimensional schematic diagram of the sealing ring of this utility model. Detailed Implementation

[0027] See Figure 1 , Figure 2 and Figure 3 The diagram illustrates a sealing device for an AC motor terminal compartment, comprising a terminal compartment body 1, a sealing ring 2, a terminal compartment cover, and a motor housing 3. The lower end of the terminal compartment body 1 is connected to the motor housing 3. The top of the terminal compartment body 1 has an opening. Screw holes 4 are provided on the outer side of the upper edge of the compartment frame of the terminal compartment body 1. A sealing ring groove 5, identical in shape to the opening, is provided on the inner side of the upper edge of the compartment frame of the terminal compartment body 1. Several outwardly facing positioning grooves 6 are provided on both sides of the sealing ring groove 5. The sealing ring 2 corresponds to and engages with the sealing ring groove 5. Positioning teeth 7 are provided on both sides of the sealing ring 2 corresponding to the positioning grooves 6. The sealing ring 2 and positioning teeth 7 are respectively placed within the sealing ring groove 5 and the positioning grooves 6. A gasket layer 8 is provided on the top of the sealing ring 2, extending above the sealing ring groove 5. The shape of the terminal compartment cover is the same as the top shape of the terminal compartment body 1. The terminal compartment cover has positioning holes corresponding to the screw holes 4. The terminal compartment cover and positioning holes are not shown in the diagram.

[0028] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the positioning groove 6 is rectangular and is distributed at intervals along the sealing ring groove 5. The positioning teeth 7 are also rectangular and are distributed at intervals along the sealing ring 2, corresponding to the positioning groove 6. The positioning teeth 7 are configured to cooperate with the positioning groove 6.

[0029] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the wiring compartment body 1 is rectangular, the opening at the top of the wiring compartment body 1 is rectangular, the sealing ring groove 5 is rectangular and has positioning tooth grooves 6 on both sides, the sealing ring 2 is rectangular and has positioning teeth 7 on both sides, the sealing ring 2 and the positioning teeth 7 are respectively configured to cooperate with the sealing ring groove 5 and the positioning tooth groove 6, the four corners of the outer edge of the frame of the wiring compartment body 1 and the outer side of the sealing ring groove 5 are provided with four screw holes 4, and the wiring compartment cover is provided with four positioning holes corresponding to the screw holes 4.

[0030] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the positioning grooves 6 are symmetrically distributed along the left and right centerlines and / or front and back centerlines of the sealing ring grooves 5 on both sides of the sealing ring grooves 5, and the positioning teeth 7 corresponding to the positioning grooves 6 are symmetrically distributed along the left and right centerlines and / or front and back centerlines of the sealing rings 2 on both sides of the sealing rings 2.

[0031] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, twelve positioning grooves 6 are spaced apart on both sides of the rectangular sealing ring groove 5. One positioning groove 6 is located at the midpoint of the left side of the left groove 5-1 of the sealing ring groove 5. Two positioning grooves 6 are spaced apart on the right side of the left groove 5-1, symmetrically arranged with the midpoint of the right side of the left groove 5-1 as the symmetry point. Three positioning grooves 6 are located in the right groove 5-2 of the sealing ring groove 5. These three positioning grooves 6 are symmetrically arranged with the three positioning grooves 6 in the left groove 5-1, with the left and right center lines of the sealing ring groove 5 as the symmetry lines. The front of the sealing ring groove 5... A positioning groove 6 is provided at the midpoint of the rear side of groove 5-3. Two positioning grooves 6 are provided at intervals on the front side of the front groove 5-3. The two positioning grooves 6 are symmetrically arranged with the midpoint of the front side of the front groove 5-3 as the symmetrical point. Three positioning grooves 6 are provided in the rear groove 5-4 of the sealing ring groove 5. The three positioning grooves 6 in the rear groove 5-4 are symmetrically arranged with the three positioning grooves 6 in the front groove 5-3 with the front and rear center lines of the sealing ring groove 5 as the symmetrical line. Twelve positioning teeth 7 are provided at intervals on both sides of the sealing ring 2. The twelve positioning teeth 7 are respectively configured to cooperate with the twelve positioning grooves 6.

[0032] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the cross-section of the gasket layer 8 is semi-circular.

[0033] As a preferred embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the wiring compartment body 1 and the motor housing 3 are integrally formed as a single piece.

[0034] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the sealing ring 2, the positioning teeth 7, and the gasket layer 8 are integrally formed as a single piece.

[0035] In practical applications, the sealing ring 2, positioning teeth 7, and gasket layer 8 of this utility model are made of high-temperature resistant rubber to enhance the sealing effect. The wiring compartment cover and the wiring compartment body 1 are tightly fixed with screws to ensure that the sealing ring 2 is pressed tightly, preventing dust and moisture from entering and extending the service life of the motor.

[0036] After testing, it was found that during assembly, the sealing ring will not fall out of the sealing ring groove when it is placed inside, nor will it easily slip out of the groove. This invention not only prevents the sealing ring from moving around, but also ensures a tight fit between the sealing ring and the sealing ring groove, and a good seal between the terminal compartment cover and the terminal compartment body, guaranteeing the waterproof and safety performance of the motor. Furthermore, the structure is simple and achieves excellent results.

Claims

1. A sealing device for an AC motor terminal block, comprising a terminal block body (1), a sealing ring (2), a terminal block cover, and a motor housing (3), characterized in that: The lower end of the wiring compartment body (1) is connected to the motor housing (3). The top of the wiring compartment body (1) is provided with an opening. The outer side of the upper edge of the frame of the wiring compartment body (1) is provided with screw holes (4). The inner side of the upper edge of the frame of the wiring compartment body (1) is provided with a sealing ring groove (5) with the same shape as the opening. Several outward positioning tooth grooves (6) are provided on both sides of the sealing ring groove (5). The sealing ring (2) is correspondingly engaged with the sealing ring groove (5). The two sides of the sealing ring (2) are correspondingly engaged with the positioning tooth groove (6) and are provided with positioning teeth (7). The sealing ring (2) and the positioning teeth (7) are respectively placed in the sealing ring groove (5) and the positioning tooth groove (6). The top of the sealing ring (2) is provided with a gasket layer (8). The gasket layer (8) is higher than the sealing ring groove (5). The shape of the wiring compartment cover is the same as the shape of the top of the wiring compartment body (1). The wiring compartment cover is provided with positioning holes corresponding to the screw holes (4).

2. The AC motor terminal block sealing device according to claim 1, characterized in that: The positioning groove (6) is rectangular and is distributed at intervals along the sealing ring groove (5). The positioning teeth (7) are also rectangular and are distributed at intervals along the sealing ring (2). The positioning teeth (7) are configured to cooperate with the positioning groove (6).

3. The AC motor terminal block sealing device according to claim 1, characterized in that: The wiring compartment body (1) is rectangular, the opening at the top of the wiring compartment body (1) is rectangular, the sealing ring groove (5) is rectangular and the positioning tooth groove (6) is provided on both sides, the sealing ring (2) is rectangular and the positioning tooth (7) is provided on both sides, the sealing ring (2) and the positioning tooth (7) are respectively corresponding to and cooperate with the sealing ring groove (5) and the positioning tooth groove (6), the four corners of the outer edge of the frame of the wiring compartment body (1) and the four screw holes (4) are opened on the outer side of the sealing ring groove (5), and the wiring compartment cover is provided with four positioning holes corresponding to the screw holes (4).

4. The AC motor terminal block sealing device according to claim 3, characterized in that: The positioning groove (6) is symmetrically distributed on the left and right center lines and / or front and back center lines of the sealing ring groove (5) on both sides of the sealing ring groove (5), and the positioning teeth (7) corresponding to the positioning groove (6) are symmetrically distributed on the left and right center lines and / or front and back center lines of the sealing ring (2) on both sides of the sealing ring (2).

5. The AC motor terminal block sealing device according to claim 4, characterized in that: The rectangular sealing ring groove (5) has twelve positioning grooves (6) spaced apart on both sides. One positioning groove (6) is located at the midpoint of the left side of the left groove (5-1) of the sealing ring groove (5), and two positioning grooves (6) are spaced apart on the right side of the left groove (5-1). The two positioning grooves (6) are symmetrically arranged with the midpoint of the right side of the left groove (5-1) as the symmetry point. Three positioning grooves (6) are located in the right groove (5-2) of the sealing ring groove (5). The three positioning grooves (6) in the right groove (5-2) are symmetrically arranged with the three positioning grooves (6) in the left groove (5-1) with the left and right center lines of the sealing ring groove (5) as the symmetry lines. The front groove of the sealing ring groove (5) (5-3) A positioning groove (6) is set at the midpoint of the rear side. Two positioning grooves (6) are set at intervals on the front side of the front groove (5-3). The two positioning grooves (6) are symmetrically set with the midpoint of the front side of the front groove (5-3) as the symmetrical point. Three positioning grooves (6) are set on the rear groove (5-4) of the sealing ring groove (5). The three positioning grooves (6) of the rear groove (5-4) are symmetrically set with the three positioning grooves (6) of the front groove (5-3) with the front and rear center lines of the sealing ring groove (5) as the symmetrical line. Twelve positioning teeth (7) are set at intervals on both sides of the sealing ring (2). The twelve positioning teeth (7) are respectively matched with the twelve positioning grooves (6).

6. The AC motor terminal block sealing device according to claim 1, characterized in that: The cross-section of the gasket layer (8) is semi-circular.

7. The AC motor terminal block sealing device according to any one of claims 1 to 6, characterized in that: The wiring compartment body (1) and the motor housing (3) are integrally formed as a single piece.

8. The AC motor terminal block sealing device according to any one of claims 1 to 6, characterized in that: The sealing ring (2), positioning teeth (7) and gasket layer (8) are integrally formed as a single piece.

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