Waterproof structure for motor controller

Abstract

The utility model relates to a waterproof structure for a motor controller, which belongs to the technical field of controllers and comprises a motor controller shell and a motor controller cover, and a waterproof sealing structure is mounted between the motor controller shell and the motor controller cover. The waterproof sealing structure comprises an annular sealing ring, a rubber protection wall is mounted on the outer side of the lower end of the annular sealing ring, a rubber protrusion is mounted on the inner side of the upper end of the annular sealing ring, a mounting groove is formed in the lower end of the rubber protrusion, the waterproof sealing structure is sleeved with the annular groove through the rubber protection wall, and a limiting protrusion is inserted into the mounting groove. The waterproof sealing structure is mounted on the motor controller shell after being sleeved with the waterproof sealing structure, the rubber protrusions are directly inserted into the limiting grooves to form steps and an interlacing structure, face-to-face sealing is achieved, and the sealing effect of the motor controller cover and the motor controller shell can be better.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a waterproof structure for a motor controller. Background Art

[0002] New energy electric vehicles have developed rapidly in recent years and have the trend of gradually replacing traditional internal combustion engine vehicles, with characteristics such as economy, environmental protection, strong power, and smooth acceleration. Existing electric vehicles are controlled by a controller to output power to drive the vehicle forward, and the controller, as a component used in an electric vehicle, needs to have waterproof and dustproof characteristics.

[0003] In the prior art, such as the waterproof structure of a motor controller with the application number CN201721150865.1, the disclosed waterproof structure of the motor controller includes a controller housing and a terminal post. The terminal post is a multi-prismatic body, and further includes a waterproof ring with a through hole. The waterproof ring is sleeved on the terminal post, and the inner wall of the through hole is attached to the outer wall of the terminal post to form a sealing structure, and the waterproof ring is hermetically connected to the controller housing.

[0004] Although the above patent improves the tightness between the waterproof ring and the terminal post, thereby improving the waterproof and dustproof performance of the controller, the installation between the housing and the body of the motor controller is a surface-to-surface installation, and only the connection part is simply sealed, which may lead to poor sealing. If the sealing performance is not good, it is very easy for water or other liquids to seep into the interior of the motor controller through the gaps, thereby damaging the various components inside the motor controller; at the same time, due to the poor sealing performance itself in an environment with frequent immersion in water, the safe use of the motor controller is seriously affected. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems and provides a waterproof structure for a motor controller.

[0006] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0007] A waterproof structure for a motor controller includes a motor controller housing and a motor controller cover, and a waterproof sealing structure is installed between the motor controller housing and the motor controller cover;

[0008] The waterproof sealing structure includes an annular sealing ring, a rubber protective wall is installed on the outer side of the lower end of the annular sealing ring, a rubber protrusion is installed on the inner side of the upper end of the annular sealing ring, and an installation groove is opened at the lower end of the rubber protrusion.

[0009] Preferably, the motor controller housing and the motor controller cover are fixedly connected by screws.

[0010] Preferably, a limiting protrusion is installed inside the motor controller housing, and the limiting protrusion can be installed in the installation groove.

[0011] Preferably, a ring groove for cooperating with the rubber protection wall is formed on the outer side of the upper end of the motor controller housing, and the rubber protection wall can be sleeved in the ring groove.

[0012] Preferably, a limiting groove for cooperating with the rubber protrusion is formed at the lower end of the motor controller cover.

[0013] Preferably, fixing bars are oppositely installed on the inner wall of the motor controller cover, and a rubber strip that can be inserted between the two fixing bars is installed at the lower end of the rubber protrusion.

[0014] Preferably, mounting holes are formed in the annular sealing ring.

[0015] Preferably, a fixing bracket is installed at the lower end of the motor controller housing. The cross-section of the fixing bracket is a Z-shaped structure, and connection holes are formed in the fixing bracket.

[0016] After adopting the above structure, the utility model has the following advantages:

[0017] The waterproof and sealing structure is installed on the motor controller housing by sleeving the rubber protection wall in the ring groove and inserting the limiting protrusion into the installation groove. The rubber protrusion is directly inserted into the limiting groove to form a step and an intersecting structure, realizing face-to-face sealing, which can make the sealing effect between the motor controller cover and the motor controller housing better.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is the first structural schematic diagram of the utility model;

[0021] Figure 2 is the second structural schematic diagram of the utility model;

[0022] Figure 3It is a schematic structural diagram of the waterproof and sealing structure of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the motor controller cover of the present utility model;

[0024] Figure 5 It is an exploded view of the present utility model.

[0025] As shown in the figure: 1. Motor controller housing; 101. Limit protrusion; 102. Ring groove; 2. Motor controller cover; 201. Limit groove; 202. Fixed strip; 3. Waterproof and sealing structure; 301. Annular sealing ring; 302. Rubber protection wall; 303. Rubber protrusion; 304. Installation groove; 4. Connection hole; 5. Rubber strip; 6. Fixed bracket. Specific implementation mode

[0026] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0027] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] The present utility model will be further described in detail below in combination with the full text.

[0029] Combined with the attached Figures 1 - 5 , a waterproof structure for a motor controller includes a motor controller housing 1 and a motor controller cover 2. A waterproof and sealing structure 3 is installed between the motor controller housing 1 and the motor controller cover 2, and the motor controller housing 1 and the motor controller cover 2 are fixedly connected by screws. The waterproof and sealing structure 3 is installed between the motor controller housing 1 and the motor controller cover 2 and is fixedly connected by screws, so that the whole motor controller is isolated from the outside world, achieving the purpose of waterproof and dustproof. The waterproof and sealing structure 3 is an integrally formed structure, which is convenient for processing and reduces the production cost.

[0030] When the present utility model is specifically implemented, such as Figure 2As shown in the figure, a fixed bracket 6 is installed at the lower end of the motor controller housing 1. The cross-section of the fixed bracket 6 is a Z-shaped structure, and a connection hole 4 is provided on the fixed bracket 6. Specifically, the fixed brackets 6 are mirror-symmetrically arranged, and the present utility model can be installed at the required place through the connection holes 4.

[0031] When the present utility model is specifically implemented, as Figures 3 - 5 shown, the waterproof sealing structure 3 includes an annular sealing ring 301. A rubber protective wall 302 is installed on the outer side of the lower end of the annular sealing ring 301, and a rubber protrusion 303 is installed on the inner side of the upper end of the annular sealing ring 301. An installation groove 304 is provided at the lower end of the rubber protrusion 303. A limit protrusion 101 is installed inside the motor controller housing 1, and the limit protrusion 101 can be installed in the installation groove 304. A ring groove 102 for cooperating with the rubber protective wall 302 is provided on the outer side of the upper end of the motor controller housing 1, and the rubber protective wall 302 can be sleeved in the ring groove 102. Specifically, the waterproof sealing structure 3 is installed on the motor controller housing 1 by sleeving the rubber protective wall 302 in the ring groove 102 and inserting the limit protrusion 101 into the installation groove 304. When the motor controller cover 2 is installed, the rubber protrusion 303 is directly inserted into the limit groove 201 to achieve sealed installation. The rubber protective wall 302 and the installation groove 304 of the waterproof sealing structure 3 cooperate with the motor controller cover 2 and the motor controller housing 1 to form a stepped and intersecting structure, which can make the sealing effect between the motor controller cover 2 and the motor controller housing 1 better, solve the problem of poor sealing caused by simple sealing at the connection, prevent water or other liquids from seeping into the interior of the motor controller through the gaps, and avoid damage to the various components inside the motor controller.

[0032] When the present utility model is specifically implemented, as Figure 5 shown, a limit groove 201 for cooperating with the rubber protrusion 303 is provided at the lower end of the motor controller cover 2. Fixed strips 202 are oppositely installed on the inner wall of the motor controller cover 2. A rubber strip 5 that can be inserted between the two fixed strips 202 is installed at the lower end of the rubber protrusion 303. The rubber strip 5 can be limited by being inserted between the two fixed strips 202. When disassembling, the rubber strip 5 can be manually toggled to remove the waterproof sealing structure 3, which is convenient for disassembly.

[0033] Installation holes are provided on the annular sealing ring 301 for screw connection between the motor controller housing 1 and the motor controller cover 2. Specifically, a circuit board is installed inside the motor controller housing 1.

[0034] Embodiment 1:

[0035] The waterproof sealing structure 3 is installed between the motor controller housing 1 and the motor controller cover 2 and is fixedly connected by screws. The waterproof sealing structure 3 is sleeved in the annular groove 102 through the rubber protective wall 302, and the limiting protrusion 101 is inserted into the installation groove 304 to complete the installation of the waterproof sealing structure 3 on the motor controller housing 1. When the motor controller cover 2 is installed, the rubber protrusion 303 is directly inserted into the limiting groove 201 to achieve a sealed installation. The rubber protective wall 302 and the installation groove 304 of the waterproof sealing structure 3 are used in conjunction with the motor controller cover 2 and the motor controller housing 1 to form a step and an interlaced structure, which can make the sealing effect of the motor controller cover 2 and the motor controller housing 1 better.

[0036] Embodiment 2:

[0037] The waterproof sealing structure 3 is installed between the motor controller housing 1 and the motor controller cover 2. A circuit board is installed in the motor controller housing 1. The circuit board screws are installed in the motor controller housing 1. The motor controller cover 2 is installed on the motor controller housing 1 by screws. The device is installed in the required place through the connecting hole 4 of the fixing bracket 6. When the circuit board needs to be maintained or the waterproof sealing structure 3 is replaced, the motor controller cover 2 can be removed. For circuit board maintenance, the rubber strip 5 is manually moved, and the waterproof sealing structure 3 is taken out by pulling the rubber strip 5, which is convenient for disassembly and replacement. The new waterproof sealing structure 3 is installed between the motor controller housing 1 and the motor controller cover 2, and fixedly connected by screws.

[0038] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A waterproof structure for a motor controller, comprising a motor controller housing (1) and a motor controller cover (2), characterized in that, A waterproof sealing structure (3) is installed between the motor controller housing (1) and the motor controller cover (2); The waterproof sealing structure (3) includes an annular sealing ring (301). A rubber protective wall (302) is installed on the outer side of the lower end of the annular sealing ring (301). A rubber protrusion (303) is installed on the inner side of the upper end of the annular sealing ring (301). An installation groove (304) is opened at the lower end of the rubber protrusion (303).

2. The waterproof structure for a motor controller according to claim 1, wherein: The motor controller housing (1) and the motor controller cover (2) are fixedly connected by screws.

3. The waterproof structure for a motor controller according to claim 1, characterized in that: A limiting protrusion (101) is installed on the inner side of the motor controller housing (1), and the limiting protrusion (101) can be installed in the installation groove (304).

4. The waterproof structure for a motor controller according to claim 1, characterized in that: A ring groove (102) for cooperating with the rubber protective wall (302) is opened on the outer side of the upper end of the motor controller housing (1), and the rubber protective wall (302) can be sleeved in the ring groove (102).

5. The waterproof structure for a motor controller according to claim 1, wherein: A limiting groove (201) for cooperating with the rubber protrusion (303) is opened at the lower end of the motor controller cover (2).

6. The waterproof structure for a motor controller according to claim 1, wherein: Fixing strips (202) are oppositely installed on the inner wall of the motor controller cover (2), and a rubber strip (5) that can be inserted between the two fixing strips (202) is installed at the lower end of the rubber protrusion (303).

7. The waterproof structure for a motor controller according to claim 1, wherein: Installation holes are opened on the annular sealing ring (301).

8. The waterproof structure for a motor controller according to claim 1, characterized in that: A fixing bracket (6) is installed at the lower end of the motor controller housing (1). The cross-section of the fixing bracket (6) is a Z-shaped structure, and a connection hole (4) is opened on the fixing bracket (6).

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