Junction box structure for motor controller

Abstract

The utility model relates to a junction box structure used for a motor controller, comprising a controller housing, the controller housing is provided with a wiring port, the wiring port is covered with a junction box cover plate, one end of the junction box cover plate is also provided with a connecting band, the controller housing is provided with a connecting column, and the connecting band is connected with the connecting column. According to the utility model, the connecting belt is arranged on the junction box cover and the connecting column is arranged on the controller shell, so that the junction box cover can flow along with the controller shell in a product off-line test stage, the junction box cover does not fall off even if a screw is not locked, and a wiring opening can be protected constantly.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor controller structures, and in particular relates to a junction box structure for a motor controller. Background Art

[0002] The motor controller consists of a housing and components such as a PCB board, an inductor, and a power tube arranged inside the housing. The housing of the motor controller is usually made of metal or non-metallic materials, and has the characteristics of resisting external impact, protecting internal components, providing good heat dissipation performance, and ensuring electrical insulation. The housing usually includes a housing body and a bottom cover, and the housing body is fixed to the bottom cover by bolts. The housing body is an integrated structure. Among them, the bottom cover and the housing body are made of aluminum alloy materials by gravity casting.

[0003] Wiring holes are also provided on the shell body to facilitate the connection of internal circuit components with motors or other equipment. A junction box cover is generally provided on the wiring hole, which forms a sealed protection with the motor controller casing under the condition of screw locking. However, this cover is generally placed freely and without constraints without screw locking. This will result in the risk of other debris falling into the wiring opening if the cover is not installed during the off-line test phase. If the cover is installed but the screws are not locked, the cover may fall off and form no effective protection. At the same time, the above-mentioned risks also exist when installing the high-voltage busbar or performing after-sales maintenance on the vehicle end. If the operation is not standardized, the junction box cover is easy to be lost. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a junction box structure for a motor controller, the cover of which is not easy to lose and can effectively protect the wiring port.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] A junction box structure for a motor controller comprises a controller housing, wherein a wiring port is provided on the controller housing, and a junction box cover is provided on the wiring port. A connecting belt is also provided at one end of the junction box cover. A connecting column is provided on the controller housing, and the connecting belt is connected to the connecting column.

[0007] As a preferred solution: a through hole is provided on the connecting belt, the connecting column is a hook, and the connecting belt is buckled on the hook through the through hole.

[0008] As a preferred solution: a step surface is also provided on the controller housing, the wiring port is located in the middle of the step surface, the junction box cover is placed on the step surface, and is fixed to the controller housing by bolts.

[0009] As a preferred solution: an avoidance groove for accommodating the connecting belt is further provided between the step surface and the hook.

[0010] As a preferred solution: the junction box cover is further provided with a circle of grooves, and a sealing ring is embedded in the grooves.

[0011] As a preferred solution: the connecting belt and the sealing ring are integrally formed.

[0012] As a preferred solution: the controller housing includes a controller box body and a controller cover plate fixed to each other, and the hook, step surface, avoidance groove and wiring port are all arranged on the controller cover plate.

[0013] The utility model provides a connection belt on the junction box cover and a connection column on the controller housing, so that during the product offline testing stage, the junction box cover can flow with the controller housing and will not fall off even if the screws are not tightened, thereby providing constant protection for the wiring opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0015] Figure 1 It is a structural schematic diagram of the motor controller housing of the utility model;

[0016] Figure 2 It is a schematic diagram of the disassembly and assembly structure of the motor controller housing and the junction box cover of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the motor controller housing of the utility model with the junction box cover opened;

[0018] Figure 4 It is a structural schematic diagram of a junction box cover plate of the utility model.

[0019] The reference numerals are: 1, controller box body; 2, controller cover; 21, hook; 22, step surface; 23, wiring port; 24, avoidance groove; 3, wiring box cover; 30, sealing ring; 31, connecting belt; 32, through hole. DETAILED DESCRIPTION

[0020] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection 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.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0027] like Figures 1 to 4 A terminal box structure for a motor controller shown in the figure includes a controller housing, a wiring port 23 is opened on the controller housing, and the wiring port 23 is covered with a terminal box cover 3. One end of the terminal box cover 3 is also provided with a connecting belt 31. The controller housing is provided with a connecting column, and the connecting belt 31 is connected to the connecting column.

[0028] As a specific structural form, a through hole 32 is provided on the connecting belt 31 , the connecting column is a hook 21 , and the connecting belt 31 is buckled on the hook 21 through the through hole 32 .

[0029] The controller housing is also provided with a step surface 22, the wiring port 23 is located in the middle of the step surface 22, the junction box cover 3 is placed on the step surface 22 and fixed to the controller housing by bolts. An escape groove 24 for accommodating the connecting belt 31 is also provided between the step surface 22 and the hook 21.

[0030] The controller housing includes a controller box body 1 and a controller cover plate 2 which are fixed to each other. The hook 21 , the step surface 22 , the avoidance groove 24 and the wiring port 23 are all arranged on the controller cover plate 2 .

[0031] The junction box cover 3 is also provided with a circle of grooves, in which a sealing ring 30 is embedded. The connecting belt 31 and the sealing ring 30 are integrally formed.

[0032] The connecting belt 31 of the utility model extends from the edge of the sealing ring on the junction box cover to a structure similar to a strap. The structure and the sealing ring body are made of soft rubber vulcanized into one. The through hole on the strap is installed on the buckle-like bolt point on the controller cover 2 (the size of the strap through hole can be appropriately expanded and contracted), thereby forming a protection for the junction box cover that can be freely moved but not lost.

[0033] The structure of the junction box for the motor controller of the utility model has little change compared with the existing structure, and has basically no impact on the cost; however, the above structure can enable the junction box cover to flow with the controller cover during the offline testing phase, and will not fall off even if the screws do not need to be locked, thereby providing real-time protection for the wiring opening; at the same time, when the high-voltage busbar is installed at the vehicle end or during subsequent maintenance, it is also relatively convenient to disassemble and assemble the junction box cover, and the cover is not easy to be lost.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A junction box structure for a motor controller, comprising a controller housing, the controller housing being provided with a wiring port (23), the wiring port (23) being covered with a junction box cover (3), characterized in that: A connection belt (31) is also provided at one end of the junction box cover plate (3), a connection column is provided on the controller housing, and the connection belt (31) is connected to the connection column.

2. A junction box structure for a motor controller according to claim 1, characterized in that: The connecting belt (31) is provided with a through hole (32), the connecting column is a hook (21), and the connecting belt (31) is buckled onto the hook (21) through the through hole (32).

3. The junction box structure for a motor controller according to claim 1, characterized in that: The controller housing is also provided with a step surface (22), the wiring port (23) is located in the middle of the step surface (22), and the junction box cover (3) is placed on the step surface (22) and fixed to the controller housing by bolts.

4. A junction box structure for a motor controller according to claim 3, characterized in that: An escape groove (24) for accommodating the connecting belt (31) is also provided between the step surface (22) and the hook (21).

5. The junction box structure for a motor controller according to claim 1, characterized in that: The junction box cover plate (3) is also provided with a circle of grooves, and a sealing ring (30) is embedded in the groove.

6. A junction box structure for a motor controller according to claim 5, characterized in that: The connecting belt (31) and the sealing ring (30) are integrally formed.

7. The junction box structure for a motor controller according to claim 2, characterized in that: The controller housing comprises a controller box body (1) and a controller cover plate (2) which are fixed to each other, and the hook (21), the step surface (22), the avoidance groove (24) and the wiring port (23) are all arranged on the controller cover plate (2).

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