Shell of electric vehicle brake, electric vehicle brake and electric vehicle

Abstract

The utility model provides an electric car brake shell, electric car brake and electric vehicle, the electric car brake shell comprises a metal upper cover, a metal lower cover and a plastic shell body, the plastic shell body is provided with at least one through hole which is through up and down, the through hole is internally provided with a metal piece, and the metal piece is electrically connected with the metal upper cover and the metal lower cover. The electric car brake shell can effectively solve the hidden danger of static electricity of a metal shell of a brake component and an assembly, and meanwhile large-scale mechanical automatic production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle assembly, especially a shell of a trolley brake. BACKGROUND

[0002] Electrostatic problem is an important problem that needs to be considered in the design and production of trolley brakes. Electrostatic accumulation in the brake shell or inside leads to sensor and electronic component failure, and even damages the brake parts. In addition, electrostatic accumulation can cause brake noise, increase brake pad and brake disc wear, generate more dust, and electrostatic interference can cause uneven braking, increasing energy loss.

[0003] Various methods are used in the prior art to alleviate the electrostatic problem. For example, conductive coating or anti-static coating is applied at key positions, or metal particles or conductive grease is added to the brake pad. However, for the electrostatic problem of the shell and other components, an additional grounding wire is often added. However, the addition of wires requires additional assembly procedures, and there are also defects in assembly reliability.

[0004] In order to overcome the above-mentioned defects existing in the prior art, there is an urgent need in the art for a trolley brake for effectively solving the electrostatic problem of the metal shell of the component and the assembly itself, and at the same time, it can be automatically operated by a robot or mechanical equipment on an automatic production line, mass-produced without manual operation, and the assembly production efficiency is improved. SUMMARY

[0005] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to the more detailed description given later.

[0006] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a shell of a trolley brake, comprising a metal upper cover, a metal lower cover and a plastic shell body, at least one through hole penetrating from top to bottom is arranged on the plastic shell body, a metal piece is arranged in the through hole, and the metal piece is electrically connected with the metal upper cover and the metal lower cover.

[0007] In an embodiment, preferably, the utility model provides a shell of a trolley brake, and the trolley brake comprises a motor, and the metal lower cover is integrated with a metal shell of the motor.

[0008] In an embodiment, preferably, the utility model provides a shell of a trolley brake, and the metal piece is a copper piece.

[0009] In an embodiment, preferably, the utility model provides electric car brake's casing, the metal piece is long strip, and both ends are respectively inserted in the metal upper cover and the metal lower cover.

[0010] In an embodiment, preferably, the utility model provides electric car brake's casing, the metal piece is metal pipe.

[0011] In an embodiment, preferably, the utility model provides electric car brake's casing, the metal pipe's outer diameter size and the inner diameter size of the through -hole form interference fit between.

[0012] In an embodiment, preferably, the utility model provides electric car brake's casing, both ends of the metal pipe are connected with the metal upper cover and the metal lower cover respectively with metal bolt.

[0013] In an embodiment, preferably, the utility model provides electric car brake's casing, the resistance value of the metal bolt is less than 1 mΩ.

[0014] In an embodiment, preferably, the utility model provides electric car brake's casing, the main part of the casing is cuboid, and the through -hole is arranged at the intermediate position of the outer side of two longer sides of the plastic casing body.

[0015] Another aspect of the utility model provides a kind of electric car brake, which includes the casing of electric car brake as described in any of the above.

[0016] The utility model further provides an electric vehicle, and the brake of the vehicle includes the casing of electric car brake as described in any of the above.

[0017] The utility model adds through -hole in the plastic casing body of electric car brake, and installs metal piece in through -hole to electrically connect metal upper cover and metal lower cover of top portion.More preferably, metal piece uses metal pipe, and is reinforced and connected at its upper and lower ends by copper bolt, so that metal upper cover and metal lower cover of top portion are electrically connected, form stable structure while realizing the grounding of shell metal part, relieve the electrostatic problem of brake shell, device assembly is simple and convenient, enhances the use performance and safety performance of vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above features and advantages of the utility model can be better understood after reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar related properties or features can have the same or similar reference numerals.

[0019] Figure 1 It is the overall structure isometric view of electric car brake after being partially cut open according to an embodiment of the utility model.

[0020] Figure 2 Figure 1 is a partial structure enlarged schematic view of a through hole section of an electric car brake according to an embodiment of the present application;

[0021] Figure 3 Figure 2 is a sectional view of a through hole, metal tube and bolt assembly structure of an electric car brake according to an embodiment of the present application; and

[0022] Figure 4 Figure 3 is a complete device structure appearance schematic view of an electric car brake according to an embodiment of the present application.

[0023] For the sake of clarity, a brief explanation of the reference signs is given below:

[0024] 101 metal upper cover

[0025] 102 plastic shell body

[0026] 103 motor metal shell

[0027] 201 plastic shell body

[0028] 202 through hole

[0029] 203 metal tube

[0030] 204 metal upper cover

[0031] 205 motor metal shell

[0032] 301 metal upper cover

[0033] 302 motor metal shell

[0034] 303 bolt

[0035] 304 bolt

[0036] 305 through hole

[0037] 306 metal tube

[0038] 401, 402 through hole

[0039] 403 metal upper cover

[0040] 404 motor metal shell DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Although the description of the present application will be introduced in combination with the preferred embodiments, it does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description.

[0042] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In addition, "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical" used in the following description should be understood as the orientation shown in the paragraph and the related drawings. Such relative terms are only for the convenience of description, and they do not mean that the devices described should be manufactured or operated in a particular orientation, so they should not be understood as a limitation on the present application.

[0044] It can be understood that although the terms "first", "second", "third" and the like are used herein to describe various components, regions, layers and / or parts, these components, regions, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers and / or parts. Therefore, the first component, region, layer and / or part discussed below can be referred to as the second component, region, layer and / or part without deviating from some embodiments of the present application.

[0045] In order to solve the static problem of the brake component shell in the prior art, the shell is grounded by adding a grounding wire. However, the addition of the wire has many inconveniences in the assembly process, and lacks stable and reliable performance in the use process.

[0046] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a tram brake, which effectively solves the electrostatic problem of the component metal shell and the assembly itself, and can be automatically operated by a robot or a mechanical device on an automatic production line, mass-produced without manual operation, and assembly production efficiency is improved.

[0047] The utility model provides a tram brake's shell, including metal upper cover, metal lower cover and plastic shell body, at least one upper and lower through hole is equipped on the plastic shell body, metal piece is equipped in the through hole, the metal piece electricity is connected this metal upper cover with this metal lower cover.

[0048] After the tram brake shell is assembled to the vehicle, one of the metal upper cover and the metal lower cover is grounded.It can be understood that the ungrounded metal upper cover or metal lower cover also realizes grounding through the electrical connection of the through hole and the metal pipe, thereby reducing the risk of electrostatic problem.

[0049] In an embodiment, the utility model provides a tram brake's shell, and the tram brake includes a motor, and the metal lower cover is integrated with the metal shell of the motor.

[0050] In the preferred embodiment of the utility model, the metal piece is a copper piece.

[0051] In an embodiment, the metal piece is in the shape of a long strip, and the two ends thereof are respectively inserted into the metal upper cover and the metal lower cover, thereby forming an electrical connection.

[0052] Here, only the shape of the metal piece is exemplarily described, which aims to clearly describe the shape of the metal piece, and is not used to limit the protection scope of the utility model, and it can be understood that the metal piece can also adopt other shapes, as long as an effective electrical connection can be formed between the upper and lower metal covers, which can be applied to the brake shell of the utility model, and should also be included in the protection scope of the utility model.

[0053] In a more preferred embodiment, the metal piece is a metal pipe, which will be described in detail below in combination with the illustrated embodiment.

[0054] Figure 1 It is the overall structure isometric view of the tram brake after being partially cut open according to an embodiment of the utility model.

[0055] It can be combined with reference Figure 1 , in Figure 1In the shown embodiment, the electric car brake provided by the utility model includes a motor and a circuit board, the circuit board is arranged in a plastic shell body 102, the motor has a metal shell and is assembled and connected to the bottom of the plastic shell body 102, the motor metal shell 103 is grounded, the top of the plastic shell body 102 is closed by a metal upper cover 101, the plastic shell body 102 is provided with at least one through hole penetrating from top to bottom, a metal pipe is arranged in the through hole and used for connecting the metal upper cover 101 and the motor metal shell 103.

[0056] Figure 2 It is a partial structure enlarged schematic view of the electric car brake in a through hole section according to an embodiment of the utility model.

[0057] It can be combined with reference Figure 2 to the electric car brake provided by the utility model, the plastic shell body 201 is provided with at least one through hole 202 penetrating from top to bottom, a metal pipe 203 is arranged in the through hole 202, the metal pipe 203 connects the metal upper cover 204 and the motor metal shell 205 to realize grounding of the metal upper cover 204.

[0058] Further, in a preferred embodiment, the metal pipe is a copper pipe in the electric car brake provided by the utility model.

[0059] It can be understood that, compared with other metal materials, copper has good conductivity and comprehensive advantages in cost, so that the static electricity generated by the metal upper cover or the lower cover can be effectively transmitted to the metal part grounded on the other side of the through hole, the grounding of the metal part of the brake shell is realized, and the static electricity problem hidden danger of the brake is eliminated.

[0060] In a preferred embodiment, the outer diameter size of the metal pipe and the inner diameter size of the through hole form an interference fit. It can be understood that the interference fit can relatively fix the metal pipe in the through hole, which reduces the assembly difficulty and increases the stability of the device.

[0061] It should be particularly pointed out that in the above preferred embodiment, the outer diameter size of the metal pipe and the inner diameter size of the through hole can adopt interference fit, but in actual application, transition or gap fit can also be adopted, and other ways can be used for installation and fixation. The following will be described in detail in combination with Figure 3 the embodiment.

[0062] Figure 3 It is a sectional view of the through hole, the metal pipe and the bolt assembly structure in the electric car brake according to an embodiment of the utility model.

[0063] Please refer to Figure 3In a preferred embodiment of the utility model, the trolley brake fastens the metal pipe 306 and the installation and connection of the metal upper cover 301 and the motor metal shell 302 by metal bolts at both ends of the through hole 305.

[0064] It can be understood that, compared with other structures such as strip metal sheet of metal parts, the setting of metal pipe and bolt is simpler in the assembly of device structure, and the formed connection is more stable in mechanical structure and electrical performance, effectively solves the problem of static electricity, reduces the complexity of device, reduces the labor assembly cost, and improves the production efficiency.

[0065] It can be understood by those skilled in the art that the inner side of the metal pipe can be threaded to cooperate with the bolt assembly, or it can not be threaded, and the thread is arranged on the through hole side wall of the metal upper cover or the metal lower cover, and the assembly connection of the metal pipe is fastened by the bolt.

[0066] Further, more preferably, the resistance value of the metal bolt is less than 1mΩ, so that an electrical connection can be formed between the metal upper cover 301 and the motor metal shell 302 without generating additional large impedance, effectively transmitting the charge generated by the metal upper cover 301 to the grounded motor metal shell 302, thereby eliminating the static electricity hazard.

[0067] In an embodiment, the utility model provides a trolley brake shell which is a cuboid, and the through hole is arranged at the middle position of the outer side of the two longer sides of the plastic shell body. The following will be illustrated with the drawings.

[0068] Figure 4 It is a complete device structure appearance schematic diagram of the trolley brake according to an embodiment of the utility model.

[0069] As shown in the figure, Figure 4 In a preferred embodiment of the utility model, the main part of the brake shell is a cuboid, and the through holes 401, 402 are arranged at the middle position of the outer side of the two longer sides of the brake.

[0070] It can be understood that, in the embodiment shown in the figure, Figure 4 The main part of the device component composed of the metal upper cover, the metal lower cover and the plastic shell body is a cuboid, and the through hole is arranged at the middle position of the outer side of the two longer sides of the plastic shell body, which is more conducive to the firm assembly of the device structure.

[0071] It should be noted that the position of the through hole is only illustrative, and is intended to provide a preferred embodiment of the electric vehicle brake shell, and is not intended to limit the scope of the present application. In actual applications, the position of the through hole can be adjusted as needed.

[0072] The present application also provides an electric vehicle, wherein the brake of the vehicle comprises the electric vehicle brake shell as described in any of the above.

[0073] The present application also provides an electric vehicle, wherein the brake of the vehicle comprises the electric vehicle brake shell as described in any of the above.

[0074] The electric vehicle brake shell, the electric vehicle brake and the electric vehicle provided by the present application have the following advantages. A through hole is additionally arranged in the plastic shell body of the electric vehicle brake, and a metal piece made of copper is arranged in the through hole, so that the upper metal cover and the lower metal cover of the brake are electrically connected. When the brake is assembled into the vehicle, one of the upper metal cover and the lower metal cover is grounded. The through hole and the metal piece can make the metal shell of the brake grounded, thereby solving the problem of static electricity. More preferably, the metal piece can have the shape of a metal pipe, and the upper end and the lower end of the metal pipe are fixed and reinforced by copper bolts, so as to ensure and fasten the electrically conductive connection between the upper metal cover and the lower metal cover, form a stable structure, and achieve the grounding of the metal part of the shell of the electric vehicle brake. The above-mentioned solution can solve the problem of static electricity of the brake shell, facilitate the batch automatic mechanical production, improve the production efficiency, and enhance the use performance and safety performance of the vehicle.

[0075] The foregoing description of the present disclosure has been provided for the purposes of enabling any person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the examples described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0076] The foregoing description of the present disclosure has been provided for the purposes of enabling any person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the examples described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A housing for an electric vehicle brake, characterized in that The shell comprises a metal upper cover, a metal lower cover and a plastic shell body, the plastic shell body is provided with at least one through hole, a metal piece is arranged in the through hole, and the metal piece is electrically connected with the metal upper cover and the metal lower cover.

2. The housing of claim 1, wherein The electric vehicle brake comprises a motor, and the metal lower cover is integrated with a metal shell of the motor.

3. The case according to claim 1, characterized by The metal piece is a copper piece.

4. The case according to claim 1, characterized by The metal piece is in a strip shape, and both ends of the metal piece are respectively inserted into the metal upper cover and the metal lower cover.

5. The case according to claim 1, characterized by The metal piece is a metal pipe.

6. The housing of claim 5, wherein, An interference fit is formed between an outer diameter of the metal pipe and an inner diameter of the through hole.

7. The case according to claim 5, characterized in that, Both ends of the metal pipe are connected with the metal upper cover and the metal lower cover by metal bolts.

8. The case according to claim 7, characterized in that The resistance of the metal bolt is less than 1 mΩ.

9. The case of claim 1, wherein, The main body of the shell is in a cuboid shape, and the through hole is arranged at an intermediate position of the outer side of two longer sides of the plastic shell body.

10. An electric vehicle brake, characterized by The shell comprises the electric vehicle brake according to any one of claims 1-9.

11. An electric vehicle characterized by comprising: The brake of the vehicle comprises the shell of the electric vehicle brake according to any one of claims 1-9.

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