Dustproof sealing wiring structure of reluctance motor

Abstract

The utility model provides a dustproof sealing wiring structure of a reluctance motor. The dustproof sealing wiring structure of the reluctance motor comprises a bottom plate, a wiring box, a sealing gasket and an annular sealing strip. According to the dustproof sealing wiring structure of the reluctance motor provided by the utility model, the bottom plate is arranged, the junction box is detachably arranged above the bottom plate, the bottom of the junction box is provided with the connecting plate in a bending manner, the connecting plate is fixedly connected with the bottom plate through the bolt, and the bolt penetrates through the connecting plate and is in threaded connection with the bottom plate. A sealing gasket is arranged between the connecting plate and the bottom plate, and the sealing gasket is of an annular structure integrally, so that sealing between the connecting plate and the bottom plate is achieved. In addition, an annular sealing strip is installed on the inner side wall of the junction box, when the junction box is installed on the bottom plate, the annular sealing strip abuts against the bottom plate to achieve second sealing, the dustproof sealing effect can be effectively achieved on the connecting position of the junction box and the bottom plate, and the stability of the wiring position in the operation process of the motor is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor manufacturing technology, and specifically relates to a dustproof and sealed wiring structure for a reluctance motor. Background Technology

[0002] Motor wiring typically involves installing a junction box on the motor body, which connects the motor's wiring to the external power supply line. To ensure motor safety during operation, a junction box is usually installed over the outside of the terminals, providing a sealed connection between the junction box and the motor housing for dust prevention. Currently, during installation, a sealing ring is placed between the junction box and the motor housing for dust prevention. However, if the sealing ring fails, dust can easily enter the junction box, potentially causing terminal discharge. In severe cases, this can lead to a short circuit, affecting the normal operation of the motor. Utility Model Content

[0003] This utility model provides a dustproof and sealed wiring structure for a reluctance motor, which aims to solve the problem of poor sealing effect of existing motor wiring structures, affecting the normal use of the motor.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a dustproof and sealed wiring structure for a reluctance motor, comprising:

[0005] A base plate is fixedly installed on the motor housing, and wiring terminals are installed on the base plate;

[0006] A junction box is installed on the base plate and covers the outside of the terminal block. A conduit is provided on the side wall of the junction box, and a connecting plate for fixing to the base plate is provided at the bottom of the junction box that is bent outward.

[0007] A sealing gasket is installed between the base plate and the junction box;

[0008] An annular sealing strip is installed on the inside of the junction box, and when the junction box is installed on the base plate, the annular sealing strip abuts against the base plate.

[0009] In one possible implementation, the junction box is provided with a slot for installing the annular sealing strip, and a limit protrusion is provided on one inner wall of the slot.

[0010] In one possible implementation, the annular sealing strip has a protrusion corresponding to the limiting protrusion, and when the annular sealing strip is installed inside the slot, the protrusion is located on the side of the annular sealing strip closer to the limiting protrusion.

[0011] In one possible implementation, the junction box includes a housing for fixing to the base plate and a cover plate detachably mounted on the housing, the cover plate being provided with an annular sealing strip that is sealed to the housing.

[0012] In one possible implementation, the cover plate is provided with a mounting groove for mounting the annular sealing strip, the annular sealing strip is located inside the mounting groove, and the box body is provided with an annular protrusion for abutting against the sealing strip.

[0013] In one possible implementation, the annular protrusion slides into the mounting groove, and when the cover is installed on the box, the annular protrusion is located inside the mounting groove.

[0014] In one possible implementation, the housing is threaded with a plurality of fasteners for securing the cover plate to the housing, and the plurality of fasteners are evenly spaced along the circumference of the housing on the outer side of the housing.

[0015] In one possible implementation, the conduit includes:

[0016] The pipe body is fixedly installed on the junction box and extends through the side wall of the junction box;

[0017] A sealing sleeve is slidably disposed inside the tube body, and a limiting platform for limiting the sealing sleeve is provided inside the tube body;

[0018] A gasket is installed inside the tube body and abuts against the end of the sealing sleeve away from the limiting platform;

[0019] A tightening sleeve is threadedly connected to the tube body, and the end of the tightening sleeve abuts against the washer to push the washer to press the sealing sleeve against the limiting platform.

[0020] The solution shown in this application, compared with the prior art, features a base plate integrally formed with the motor housing. A junction box is detachably mounted on top of the base plate, and a connecting plate is bent at the bottom of the junction box. The connecting plate and the base plate are fixedly connected by bolts, which pass through the connecting plate and are threaded into the base plate. A sealing gasket with an overall annular structure is provided between the connecting plate and the base plate to achieve a seal. Furthermore, this application also installs an annular sealing strip on the inner wall of the junction box. When the junction box is installed on the base plate, the annular sealing strip abuts against the base plate to achieve a second seal, effectively preventing dust and sealing the connection between the junction box and the base plate, and effectively improving the stability of the wiring connection during motor operation. Attached Figure Description

[0021] Figure 1 A schematic diagram of the dustproof and sealed wiring structure of the reluctance motor provided in this embodiment of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0023] Figure 3 for Figure 1 Enlarged view of part B in the middle;

[0024] Figure 4 This is a schematic diagram of the conduit provided in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base plate; 2. Junction box; 21. Box body; 211. Annular protrusion; 22. Cover plate; 23. Connecting plate; 24. Limiting protrusion; 25. Annular sealing strip; 3. Terminal block; 4. Conduit; 41. Conduit body; 42. Sealing sleeve; 43. Washer; 44. Tightening sleeve; 5. Sealing gasket; 6. Annular sealing strip; 61. Protrusion; 7. Fastener. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Please refer to the following: Figures 1 to 4 The dustproof and sealed wiring structure for a reluctance motor provided by this utility model is described below. The dustproof and sealed wiring structure for a reluctance motor includes a base plate 1, a junction box 2, a sealing gasket 5, and an annular sealing strip 6. The base plate 1 is fixedly installed on the motor housing, and a terminal block 3 is installed on the base plate 1. The junction box 2 is installed on the base plate 1 and covers the outside of the terminal block 3. A conduit 4 is provided on the side wall of the junction box 2, and a connecting plate 23 for fixing to the base plate 1 is bent outward at the bottom of the junction box 2. The sealing gasket 5 is installed between the base plate 1 and the junction box 2. The annular sealing strip 6 is installed on the inner side of the junction box 2, and when the junction box 2 is installed on the base plate 1, the annular sealing strip 6 abuts against the base plate 1.

[0029] The dustproof and sealed wiring structure for a reluctance motor provided in this embodiment, compared with the prior art, features a base plate 1 integrally formed with the motor housing. A junction box 2 is detachably mounted on top of the base plate 1. A connecting plate 23 is bent at the bottom of the junction box 2, and the connecting plate 23 is fixedly connected to the base plate 1 by bolts. The bolts pass through the connecting plate 23 and are threadedly connected to the base plate 1. A sealing gasket 5, which is an annular structure, is provided between the connecting plate 23 and the base plate 1 to achieve a seal. Furthermore, an annular sealing strip 6 is installed on the inner wall of the junction box 2. When the junction box 2 is installed on the base plate 1, the annular sealing strip 6 abuts against the base plate 1 to achieve a second seal, effectively preventing dust and sealing the connection between the junction box 2 and the base plate 1, and effectively improving the stability of the wiring connection during motor operation.

[0030] Specifically, in this embodiment, when wiring the motor, the power cord can be passed through the conduit 4 on the junction box 2 into the interior of the junction box 2 and connected to the terminal block 3, with the power cord and conduit 4 forming a sealed connection. The junction box 2 is then installed on the base plate 1, achieving a seal between the junction box 2 and the base plate 1. Even if the sealing gasket 5 fails during long-term use, further sealing can be achieved through the annular sealing strip 6, ensuring stable motor operation.

[0031] In some embodiments, the junction box 2 described above may be as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2 The junction box 2 is provided with a slot for installing the annular sealing strip 6, and a limiting protrusion 24 protrudes from the inner wall of one side of the slot. A baffle is arranged parallel to the inner wall of the junction box 2 at intervals inside the junction box 2, forming the slot with the baffle. The limiting protrusion 24 is located on the baffle. When the annular sealing strip 6 is installed into the slot, it adheres to the inner wall of the junction box 2 through the action of the limiting protrusion 24. Furthermore, when the junction box 2 is installed onto the base plate 1, the annular sealing strip 6 adheres to both the inner wall of the junction box 2 and the base plate 1, achieving sealing in two directions and effectively ensuring the sealing effect between the junction box 2 and the base plate 1.

[0032] In some embodiments, the annular sealing strip 6 may be adopted as follows: Figure 2 The structure shown. (Participate) Figure 2The annular sealing strip 6 has a protrusion 61 corresponding to the limiting protrusion 24. When the annular sealing strip 6 is installed into the slot, the protrusion 61 is located on the side of the annular sealing strip 6 closest to the limiting protrusion 24. The protrusion 61 protrudes from the side of the annular sealing strip 6 closest to the limiting protrusion 24, and its length is along the length of the annular sealing strip 6. When the annular sealing strip 6 is installed into the slot, the protrusion 61 is limited by the limiting protrusion 24 within the slot, thus fixing the annular sealing strip 6 inside the slot. This simple structure facilitates the installation of the annular sealing strip 6 onto the junction box 2, thereby facilitating the subsequent installation of the junction box 2 onto the base plate 1.

[0033] In some embodiments, the junction box 2 described above may be as follows: Figure 1 , Figure 3 The structure shown. See also... Figure 1 , Figure 3 The junction box 2 includes a housing 21 fixed to a base plate 1 and a cover plate 22 detachably mounted on the housing 21. The cover plate 22 has an annular sealing strip 25 that seals against the housing 21. The junction box 2 consists of the housing 21 and the cover plate 22. The cover plate 22 covers the top of the housing 21, and the annular sealing strip 25 is installed on the top of the cover plate 22. When the cover plate 22 is installed on the housing 21, the annular sealing strip 25 is located between the cover plate 22 and the housing 21, thus achieving a seal between the cover plate 22 and the housing 21.

[0034] Specifically, in this embodiment, by setting the cover plate 22, when the power cord is connected to the terminal 3, the power cord is fixed to the junction box 2 through the conduit 4, and the wiring operation can be completed by opening the cover plate 22. The operation is convenient and facilitates the connection of the power cord on site.

[0035] In some embodiments, the cover plate 22 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The cover plate 22 has a mounting groove for installing an annular sealing strip 25, which is located inside the mounting groove. The box body 21 also has an annular protrusion 211 that abuts against the sealing strip. The mounting groove on the cover plate 22 is annular, and the annular protrusion 211 protrudes from the top side of the box body 21, corresponding to the position of the sealing strip. The sealing strip is secured inside the mounting groove. When the cover is installed on the box body 21, the annular protrusion 211 on the top of the box body 21 abuts against the sealing strip, achieving an effective seal and improving the sealing effect between the cover plate 22 and the box body 21.

[0036] In some embodiments, the housing 21 may be adopted as follows: Figure 3 The structure shown. See also Figure 3The annular protrusion 211 slides into the mounting groove. When the cover plate 22 is installed on the box body 21, the annular protrusion 211 is located inside the mounting groove. A support plate is bent outwards from the top of the box body 21, and the annular protrusion 211 is located on the side of the support plate away from the box body 21. When the cover plate 22 is installed on the box body 21, the annular protrusion 211 slides into the mounting groove. This serves to guide the installation position between the cover plate 22 and the box body 21, and further improves the sealing effect between the cover plate 22 and the box body 21.

[0037] In some embodiments, the housing 21 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The box body 21 is threaded with multiple fasteners 7 for fixing the cover plate 22 to the box body 21. These fasteners 7 are evenly spaced along the circumference of the box body 21 on its outer side. Mounting rings are fixedly installed around the box body 21, and the fasteners 7 are bolts, threadedly connected to the mounting rings. The cover plate 22 has a corresponding fixing ring. When the cover plate 22 is installed onto the box body 21, the fixing ring fits against the top of the mounting ring, and is fixed to the mounting ring by the fasteners 7 passing through it. This design is simple and facilitates the connection between the cover plate 22 and the box body 21.

[0038] In some embodiments, the conduit 4 described above can be as follows: Figure 4 The structure shown. See also Figure 4The conduit 4 includes a conduit body 41, a sealing sleeve 42, a washer 43, and a tightening sleeve 44. The conduit body 41 is fixedly installed on the junction box 2 and extends through the side wall of the junction box 2. The sealing sleeve 42 is slidably disposed inside the conduit body 41, and a limiting platform for limiting the sealing sleeve 42 is provided inside the conduit body 41. The washer 43 is installed inside the conduit body 41 and abuts against the end of the sealing sleeve 42 away from the limiting platform. The tightening sleeve 44 is threadedly connected to the conduit body 41, and the end of the tightening sleeve 44 abuts against the washer 43 to push the washer 43 to press the sealing sleeve 42 against the limiting platform. The conduit body 41 and the junction box 2 are integrally formed. The conduit body 41 is used to communicate the inside of the junction box 2 with the outside. A limiting platform protrudes from the inner wall of the conduit body 41, and a clearance hole for avoiding the power cord is provided in the middle of the limiting platform. A sealing sleeve 42 is slidably disposed inside the tube body 41. When installing a power cord, the power cord can be threaded through the tube body 41, and the sealing sleeve 42, gasket 43, and tightening sleeve 44 are fitted onto the outside of the power cord. The tightening sleeve 44 is then tightened so that its end abuts against the gasket 43. The gasket 43 compresses and deforms the sealing sleeve 42, causing its outer ring to abut against the inner wall of the tube body 41. The compression of the gasket 43 tightly holds the power cord, thus achieving a seal between the tube body 41 and the power cord, ensuring a good seal between them.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof and sealed wiring structure for a reluctance motor, characterized in that, include: A base plate (1) is fixedly installed on the motor housing, and a wiring terminal (3) is installed on the base plate (1); A junction box (2) is installed on the base plate (1) and covers the outside of the terminal block (3). A conduit (4) is provided on the side wall of the junction box (2). A connecting plate (23) for fixing to the base plate (1) is bent outward at the bottom of the junction box (2). A sealing gasket (5) is installed between the base plate (1) and the junction box (2); An annular sealing strip (6) is installed on the inner side of the junction box (2), and when the junction box (2) is installed on the base plate (1), the annular sealing strip (6) abuts against the base plate (1).

2. The dustproof and sealed wiring structure for a reluctance motor as described in claim 1, characterized in that, The junction box (2) is provided with a slot for installing the annular sealing strip (6), and a limit protrusion (24) is provided on one side of the inner wall of the slot.

3. The dustproof and sealed wiring structure for a reluctance motor as described in claim 2, characterized in that, The annular sealing strip (6) is provided with a protrusion (61) corresponding to the limiting protrusion (24). When the annular sealing strip (6) is installed inside the slot, the protrusion (61) is located on the side of the annular sealing strip (6) close to the limiting protrusion (24).

4. The dustproof and sealed wiring structure for a reluctance motor as described in claim 1, characterized in that, The junction box (2) includes a box body (21) for fixing to the base plate (1) and a cover plate (22) detachably mounted on the box body (21), wherein the cover plate (22) is provided with an annular sealing strip (25) that is sealed to the box body (21).

5. The dustproof and sealed wiring structure for a reluctance motor as described in claim 4, characterized in that, The cover plate (22) is provided with an installation groove for installing the annular sealing strip (25), the annular sealing strip (25) is located inside the installation groove, and the box body (21) is provided with an annular protrusion (211) for abutting against the sealing strip.

6. The dustproof and sealed wiring structure for a reluctance motor as described in claim 5, characterized in that, The annular protrusion (211) slides in conjunction with the mounting groove. When the cover plate (22) is installed on the box body (21), the annular protrusion (211) is located inside the mounting groove.

7. The dustproof and sealed wiring structure for a reluctance motor as described in claim 4, characterized in that, The box body (21) is threaded with a plurality of fasteners (7) for fixing the cover plate (22) to the box body (21), and the plurality of fasteners (7) are evenly spaced along the circumference of the box body (21) on the outside of the box body (21).

8. The dustproof and sealed wiring structure for a reluctance motor as described in claim 1, characterized in that, The conduit (4) includes: The pipe body (41) is fixedly installed on the junction box (2) and extends through the side wall of the junction box (2); A sealing sleeve (42) is slidably disposed inside the tube body (41), and a limiting platform for limiting the sealing sleeve (42) is provided inside the tube body (41); A gasket (43) is installed inside the tube body (41) and abuts against the end of the sealing sleeve (42) away from the limiting platform; A tightening sleeve (44) is threadedly connected to the tube body (41). The end of the tightening sleeve (44) abuts against the washer (43) to push the washer (43) to press the sealing sleeve (42) against the limiting platform.

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