External hanging type controller structure

Abstract

The utility model discloses an external hanging type controller structure, comprising a gearbox housing, a motor, a heat radiation surface cover, a PCBA board and a plastic cement housing, the heat radiation surface cover and the plastic cement housing are sealed and covered, the PCBA board is fixed in the plastic cement housing, the side wall of the plastic cement housing is provided with a PIN needle, the PIN needle is in sealed connection with the side wall of the plastic cement housing, one end of the PIN needle is connected with the PCBA board, and the other end of the PIN needle is connected with the PCBA board. An outer sealing groove is formed in the outer wall of the plastic shell, and the outer sealing groove is connected with the outer wall of the gearbox shell in a sealed mode. The device has the advantages that the controller is externally and laterally hung on the gearbox shell, the sealing design requirement of the controller is lowered, meanwhile, the risk that oil infiltrates the controller for a long time is solved, meanwhile, heat of the controller is conveniently exchanged in time, and the heat dissipation and sealing performance of the controller is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive controller technology, and in particular to an external controller structure. Background Technology

[0002] An automotive electronic fuel pump assembly consists of a motor, a gear pump, and a controller. Currently, all fuel pump controller assemblies on the market are oil-immersed controllers.

[0003] The motor, pump body, and controller of the all-oil-immersed controller are completely immersed inside the transmission. The controller needs to be immersed in oil for a long time, and its heat dissipation method is through the transmission oil.

[0004] If the controller is installed in oil, the sealing design of the controller needs to take into account the risk of long-term oil penetration into the controller; if it is immersed in oil for a long time, once the transmission oil rises, the controller will be in a high-temperature cavity for a long time, and it will be difficult to exchange heat. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an external controller structure to address the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0007] An external controller structure includes a gearbox housing, a motor, and a controller. The controller includes a heat dissipation cover, a PCBA board, and a plastic housing. The heat dissipation cover is sealed to the plastic housing. The PCBA board is fixed inside the plastic housing. A pin is provided on the side wall of the plastic housing. The pin is sealed to the side wall of the plastic housing. One end of the pin is connected to the PCBA board, and the other end is used to connect to the motor. An external sealing groove is provided on the outer wall of the plastic housing. The external sealing groove is sealed to the outer wall of the gearbox housing.

[0008] A preferred embodiment is that the outer wall of the heat dissipation cover is provided with a plurality of heat dissipation ribs, and adjacent heat dissipation ribs are parallel to each other.

[0009] A preferred embodiment is that thermal grease is provided between the PCBA board and the inner side of the heat sink cover.

[0010] In a preferred embodiment, the inner side of the plastic housing is provided with an annular inner sealing groove, the inner sealing groove is in close contact with the inner side of the plastic housing, and the heat dissipation cover is fixed to the plastic housing by screws.

[0011] A preferred embodiment is that the external controller structure further includes a wiring harness, one end of which is connected to the motor and the other end is connected to a PIN pin.

[0012] The external controller structure provided by this utility model embodiment has at least the following beneficial effects: by externally mounting the controller to the gearbox housing, the sealing design requirements of the controller are reduced, the risk of long-term oil seepage into the controller is solved, and the controller's heat exchange is facilitated in a timely manner, thereby improving the controller's heat dissipation and sealing performance.

[0013] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is the explosive of this utility model. Figure 1 ;

[0016] Figure 3 This is the explosive of this utility model. Figure 2 ;

[0017] Figure 4 This is a perspective view of the controller and motor connected in this utility model. Detailed Implementation

[0018] To illustrate the ideas and objectives of this application, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," "left," "right," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] like Figures 1 to 4 As shown, an external controller structure includes a gearbox housing 10, a motor 20, and a controller 30. The controller 30 includes a heat dissipation cover 31, a PCBA board 32, and a plastic housing 33. The heat dissipation cover 31 is sealed to the plastic housing 33. The PCBA board 32 is fixed inside the plastic housing 33. The side wall of the plastic housing 33 is provided with a pin 34, which is sealed to the side wall of the plastic housing 33. One end of the pin 34 is connected to the PCBA board 32, and the other end is used to connect to the motor 20. The outer wall of the plastic housing 33 is provided with an outer sealing groove 35, which is sealed to the outer wall of the gearbox housing 10.

[0022] like Figures 1 to 4 As shown, the controller 30 is placed outside the gearbox housing 10, which reduces the difficulty of the controller 30 sealing design. The controller 30 has low requirements for material oil compatibility, a large range of material selection, and reduces material costs. The internal space of the gearbox housing 10 is relatively compact, saving internal space of the gearbox housing 10.

[0023] like Figures 1 to 4 As shown, by externally mounting the controller 30 to the gearbox housing 10, the sealing design requirements of the controller 30 are reduced, the risk of long-term oil seepage into the controller 30 is eliminated, and the heat exchange of the controller 30 is facilitated in a timely manner, thereby improving the heat dissipation and sealing performance of the controller 30.

[0024] like Figures 1 to 4 As shown, the motor 20 is fixedly connected to the outer wall of the gearbox housing 10.

[0025] like Figures 1 to 4 As shown, the outer wall of the heat dissipation cover 31 is provided with a plurality of heat dissipation ribs 311, and adjacent heat dissipation ribs 311 are parallel to each other. The heat dissipation ribs 311 are arranged horizontally to ensure that the front airflow carries away heat from the sides.

[0026] like Figures 1 to 4 As shown, thermal grease is provided between the inner surface of the PCBA board 32 and the heat sink cover 31. Heat-generating components on the PCBA board 32, such as MOS capacitors and inductors, generate a large amount of heat during operation. The thermal grease between the PCBA board 32 and the inner surface of the heat sink cover 31 helps to dissipate the heat through the heat sink cover 31.

[0027] like Figures 1 to 4 As shown, the inner side of the plastic housing 33 is provided with an annular inner sealing groove 331, the inner sealing groove 331 is in close contact with the inner side of the plastic housing 33, and the heat dissipation cover 31 is fixed to the plastic housing 33 by screws.

[0028] like Figures 1 to 4As shown, the inner sealing groove 331 has an annular structure and is sealed to the heat dissipation cover 31.

[0029] like Figures 1 to 4 As shown, the external controller structure also includes a wiring harness 36, one end of which is connected to the motor 20, and the other end is plugged into a PIN pin 34.

[0030] like Figures 1 to 4 As shown, the controller 30 and the motor 20 are connected by a wiring harness 36 to achieve electrical connection between the controller 30 and the motor 20.

[0031] The above are specific embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An add-on controller structure, characterized by The application relates to an external hanging type controller structure, which comprises a gearbox shell, a motor and a controller; the controller comprises a heat dissipation cover, a PCBA board and a plastic shell body, the heat dissipation cover is sealedly covered with the plastic shell body, the PCBA board is fixed in the plastic shell body, a PIN needle is arranged on the side wall of the plastic shell body and is sealingly connected with the side wall of the plastic shell body, one end of the PIN needle is connected with the PCBA board, and the other end is used for being connected with the motor, an outer sealing groove is arranged on the outer wall of the plastic shell body and is sealingly connected with the outer wall of the gearbox shell.

2. The add-on controller structure of claim 1, wherein, The outer wall of the heat dissipation cover is provided with a plurality of heat dissipation ribs which are parallel to each other.

3. The add-on controller structure of claim 1 or 2, wherein, Heat-conducting silicone grease is arranged between the PCBA board and the inner side surface of the heat dissipation cover.

4. The add-on controller structure of claim 1, wherein, The inner side surface of the plastic shell body is provided with an annular inner sealing groove which is in close contact with the inner side surface of the plastic shell body, and the heat dissipation cover and the plastic shell body are fixed through screws.

5. The add-on controller structure of claim 1, wherein, The external hanging type controller structure further comprises a wire harness, one end of the wire harness is connected with the motor, and the other end is inserted into the PIN needle.

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