A controller

Abstract

The utility model discloses a controller, comprising: an upper shell and a lower shell assembled as one; a circuit board installed in a cavity formed by the upper shell and the lower shell; a glue layer filled on the surface of the circuit board and in the gap between the circuit board and the lower shell; a plurality of pipe sleeves, integrally arranged on the upper shell, facing the lower shell, corresponding to and plugging with the plug-in parts of the circuit board; the lower end of the pipe sleeve is submerged in the glue layer. The product of the utility model has the advantages of good waterproof performance, firm installation, good heat dissipation performance, simple and compact structure, and accurate positioning of the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a controller. Background Art

[0002] The connection between the upper shell and the metal bottom plate of the existing motor controller is fixed and pressed with screws, and the gap in the middle is filled with a waterproof sealing ring to achieve waterproofing. However, it is always difficult to solve the waterproofing of the connector part. The waterproofing between the connector and the plastic shell is basically solved by silicone. When it is immersed in water for a long time on rainy days, rainwater can easily enter the shell and cause a short circuit on the circuit board.

[0003] In addition, for one-machine dual-drive controllers, the volume of most products cannot be effectively controlled, their power density is low, and their structure is relatively complex. Utility Model Content

[0004] In order to provide the controller with waterproof performance and simplify the structure at the same time, the utility model provides a controller.

[0005] The technical solution adopted by the utility model is as follows: a controller, comprising: an upper shell and a lower shell assembled as one body; a circuit board installed in a cavity formed by the upper shell and the lower shell; a glue potting layer, which is poured and filled on the surface of the circuit board and in the gap between the circuit board and the lower shell; a plurality of pipe sleeves, which are integrally arranged on the upper shell, facing the lower shell, corresponding to and plug-fitting with the connectors of the circuit board one by one; the lower end of the pipe sleeve is submerged in the glue potting layer.

[0006] Preferably, the upper shell is made of plastic, the lower shell is made of aluminum alloy, and the upper shell is fixedly connected to the lower shell by screws.

[0007] Preferably, the glue potting layer uses a high thermal conductivity sealant.

[0008] Preferably, the lower end of the tube sleeve is 1.5-2.5 mm away from the upper surface of the circuit board, and the upper surface of the glue filling layer is 4-5 mm away from the upper surface of the circuit board.

[0009] Preferably, it comprises: a drainage step, which is arranged at the edge of the upper shell, has a height lower than the connector of the circuit board, and is connected to the pipe sleeve at an adjacent position.

[0010] Preferably, it comprises: a drainage groove, connecting the adjacent pipe sleeves; at least one of the pipe sleeves connected by the drainage groove is connected to the drainage step.

[0011] Preferably, it includes: a positioning pin, which is arranged on the inner wall of the bottom plate of the lower shell and is precisely matched with the positioning hole of the circuit board; a side wall plate, which is arranged on both sides of the lower shell and extends into the upper shell; and a MOS tube mounting hole, which is evenly arranged on the side wall plate.

[0012] Preferably, it includes: an overflow groove, which is opened on the outer wall surface of the bottom plate of the lower shell and extends from one side surface of the lower shell to the other side surface.

[0013] The utility model has the following beneficial effects:

[0014] 1. Good waterproof performance: The surface of the circuit board and the gap between the circuit board and the lower shell are filled with glue, which can effectively prevent external moisture and impurities from penetrating into the controller box. The lower end of the connector sleeve is immersed in the glue layer. After the glue dries, it can be completely waterproof, completely solving the waterproof problem of the connector.

[0015] 2. Firm installation: The plastic upper shell is fixed to the aluminum alloy lower shell by screws, and the tube sleeve of the upper shell is immersed below the glue layer. After the glue dries, the tube sleeve and the glue layer form an integrated structure. When plugging and unplugging the connector, the combined effect of the tube sleeve and the glue layer makes the circuit board have good tensile resistance, thereby playing the role of fixing the circuit board;

[0016] 3. Good heat dissipation performance: The glue layer uses glue with high thermal conductivity, which better guarantees the thermal conductivity of the product and plays a role in heat conduction and heat dissipation;

[0017] 4. Simple and compact structure: The side wall plates on both sides of the lower shell are used to install MOS tubes. This structure is applied to the one-machine dual-drive controller, which effectively reduces the volume of the controller, increases the power density, and simplifies the overall structure;

[0018] 5. Accurate positioning of the circuit board: The lower shell of the aluminum alloy is equipped with positioning pins, which are used to precisely match the corresponding positions of the circuit board to avoid interference with the position of the circuit board due to the installation deviation of the MOS tube, thereby ensuring that the installation errors of each connector and sleeve of the circuit board are controlled within the standard range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the bottom angle of an embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the upper shell in the embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the lower shell in the embodiment of the utility model.

[0023] Upper shell 1; lower shell 2; pipe sleeve 3; drainage step 4; drainage groove 5; positioning pin 6; side wall plate 7; MOS tube mounting hole 8; overflow groove 9. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the embodiments and drawings.

[0025] In the embodiment, Figures 1 to 4 As shown, a controller includes: an upper shell 1 and a lower shell 2 assembled as one; a circuit board installed in the cavity formed by the upper shell 1 and the lower shell 2; a glue layer poured and filled on the surface of the circuit board and in the gap between the circuit board and the lower shell 2; a plurality of pipe sleeves 3, integrally arranged on the upper shell 1, facing the lower shell 2, corresponding to and plugged in with the plug-in parts of the circuit board; the lower end of the pipe sleeve 3 is covered in the glue layer. This embodiment uses the glue layer to pour and fill the surface of the circuit board and the gap between the circuit board and the lower shell, which can effectively prevent external moisture and impurities from penetrating into the controller box, and the lower end of the pipe sleeve 3 of the plug-in part is immersed below the glue layer, and it can be completely waterproof after the glue dries, completely solving the waterproof problem at the connector. On the other hand, after the upper shell 1 and the lower shell 2 are installed, the tube sleeve 3 of the upper shell 1 is immersed below the glue layer. After the glue dries, the tube sleeve 3 and the glue layer form an integrated structure. When plugging and unplugging the connector, the combined effect of the tube sleeve 3 and the glue layer enables the circuit board to have good tensile resistance, thereby strengthening the fixation of the circuit board.

[0026] In the embodiment, Figures 1 to 4 As shown, the upper shell 1 is made of plastic, the lower shell 2 is made of aluminum alloy, and the upper shell 1 and the lower shell 2 are fixedly connected by screws. Multiple pipe sleeves 3 are integrally arranged on the upper shell 1, so the structure of the upper shell 1 is relatively complex, so the use of plastic parts is conducive to production and processing. The lower shell 2 needs to consider heat dissipation, so aluminum alloy is selected.

[0027] In the embodiment, the glue layer uses a high thermal conductivity sealant, usually a silicone or polyurethane-based material, so that the thermal conductivity of the product can be better guaranteed, and the heat conduction and heat dissipation function can be played, which is conducive to the long-term stable and reliable operation of the controller.

[0028] In the embodiment, the lower end of the tube sleeve 3 is 1.5-2.5 mm away from the upper surface of the circuit board, and the upper surface of the glue layer is 4-5 mm away from the upper surface of the circuit board. The lower end of the tube sleeve 3 in this embodiment is approximately 3 mm submerged below the glue layer, thereby achieving good waterproof and fixing effects.

[0029] In the embodiment, Figure 1 , 3As shown, it also includes: a drainage step 4, which is arranged at the edge of the upper housing 1, has a height lower than the height of the plug-in component of the circuit board, and is connected to the pipe sleeve 3 at an adjacent position; a drainage groove 5, which is connected to the adjacent pipe sleeve 3; at least one of the pipe sleeves 3 connected by the drainage groove 5 is connected to the drainage step 4. The arrangement of the drainage step 4 and the drainage groove 5 effectively guides water to flow outside the box body, avoids water accumulation in the box body, and can prevent water from accumulating in the sleeve 3 for a long time to cause water ingress and short circuit of the connector, further enhances the waterproof performance, and prolongs the service life of the controller box.

[0030] In the embodiment, Figure 4 As shown, it includes: a positioning pin 6, which is arranged on the inner wall of the bottom plate of the lower shell 2 and plugged into the positioning hole of the circuit board; a side wall plate 7, which is arranged on both sides of the lower shell 2 and extends into the upper shell 1; and a MOS tube installation hole 8, which is evenly arranged on the side wall plate 7. The side wall plates 7 on both sides of the lower shell 2 of this embodiment are used to install MOS tubes. This structure is applied in a one-machine dual-drive controller, which effectively reduces the volume of the controller, increases the power density, and simplifies the overall structure. The aluminum alloy lower shell 2 is provided with a positioning pin 6, which is used to precisely match the corresponding position of the circuit board, which can play a role in accurately positioning the circuit board, avoiding interference with the position of the circuit board due to the installation deviation of the MOS tube, thereby ensuring that the installation error of each connector and the sleeve 3 of the circuit board is controlled within the standard range.

[0031] In the embodiment, Figure 2 As shown, it includes: an overflow groove 9, which is opened on the outer wall surface of the bottom plate of the lower shell 2 and extends from one side surface of the lower shell 2 to the other side surface. After the controller of this embodiment is installed on the vehicle, it may be necessary to apply glue on the outer wall surface of the bottom plate of the lower shell 2. The overflow groove 9 is used to contain excess glue, thereby ensuring that the controller is installed flat and stable.

[0032] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A controller, characterized in that: include: An upper shell (1) and a lower shell (2) assembled into one body; A circuit board is installed in a cavity formed by the upper shell (1) and the lower shell (2); A glue potting layer, which is poured and filled on the surface of the circuit board and in the gap between the circuit board and the lower housing (2); A plurality of pipe sleeves (3) are integrally arranged on the upper housing (1), facing the lower housing (2), and corresponding one-to-one with the connectors of the circuit board and plugged in and matched with each other; The lower end of the pipe sleeve (3) is submerged in the glue potting layer.

2. A controller according to claim 1, characterized in that: The upper shell (1) is made of plastic, the lower shell (2) is made of aluminum alloy, and the upper shell (1) and the lower shell (2) are fixedly connected by screws.

3. A controller according to claim 1, characterized in that: The glue potting layer adopts high thermal conductivity sealing glue.

4. A controller according to claim 1, characterized in that: The lower end of the tube sleeve (3) is 1.5 to 2.5 mm away from the upper surface of the circuit board, and the upper surface of the glue filling layer is 4 to 5 mm away from the upper surface of the circuit board.

5. A controller according to claim 1, characterized in that: include: A drainage step (4) is arranged at the edge of the upper shell (1), has a height lower than that of the connector of the circuit board, and is connected to the pipe sleeve (3) at an adjacent position.

6. A controller according to claim 5, characterized in that: include: A drainage groove (5) communicating with the adjacent pipe sleeves (3); At least one of the pipe sleeves (3) connected to the drainage groove (5) is connected to the drainage step (4).

7. A controller according to claim 1, characterized in that: include: A positioning pin (6) is arranged on the inner wall of the bottom plate of the lower housing (2) and is plugged into and matched with the positioning hole of the circuit board; Side wall plates (7) are arranged on both sides of the lower shell (2) and extend into the upper shell (1); The MOS tube mounting holes (8) are evenly arranged on the side wall plate (7).

8. A controller according to claim 1, characterized in that: include: The overflow groove (9) is formed on the outer wall surface of the bottom plate of the lower shell (2) and extends from one side surface of the lower shell (2) to the other side surface.

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