CN220254868U

CN220254868U - Power controller with heat radiation structure

Info

Publication number: CN220254868U
Application number: CN202321892355.7U
Authority: CN
Inventors: 雷子棋; 陈元甫; 齐建通; 黄朓; 闫鸿业
Original assignee: Hanzhong 101 Aviation Electronic Equipment Co ltd
Current assignee: Hanzhong 101 Aviation Electronic Equipment Co ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2023-12-26
Anticipated expiration: 2033-07-18

Abstract

A power controller with a heat radiation structure comprises a shell, an end sealing plate, a heat radiation device and heat conduction pouring sealant; the end sealing plate is arranged at the end part of the shell, one end of the heat radiating device is arranged on the end sealing plate, the other end of the heat radiating device is arranged inside the shell, and heat conducting pouring sealant is filled outside the heat radiating device inside the shell. According to the utility model, the heat conduction pouring sealant filled in the shell isolates the control panel from external heat dissipation airflow, so that factors such as external dust, water and the like which are unfavorable for the control panel are prevented from contacting the control panel, the heat conduction pouring sealant is solidified to form an intermediate heat conductor, the heat conduction efficiency of the control panel to the shell is improved, and the integral heat dissipation efficiency is ensured by combining the two internal air guide pipes and an external fan.

Description

Power controller with heat radiation structure

Technical Field

The utility model belongs to the technical field of controllers, and particularly relates to a power controller with a heat dissipation structure.

Background

The motor controller comprises a shell, a control board is arranged in the shell, the shell is used for protecting the control board and an electric element arranged on the control board, an electric wire is arranged on the control board and used for supplying power to the control board and transmitting electric signals, a plurality of power tubes are electrically connected to the control board, power tube radiating fins are arranged on the power tubes, and the power tube radiating fins have the effect of reducing the temperature rise of the power tubes. In the running process of the electric vehicle, the motor controller is electrified to work, so that the power tube is electrified and heated, and the temperature rise on the power tube can be reduced by arranging the power tube radiating fins on the power tube, so that the effect of protecting the power tube and prolonging the service life of the power tube is achieved. The motor controller is typically mounted in the front cabin of the vehicle, leaving the cabin empty below, and during travel there is an air flow into the front cabin to remove heat from the front cabin. In a road section or a rainy period where dust is much, dust or water mist easily enters the inside of the controller. The internal heat dissipation efficiency of the controller is greatly reduced after a large amount of dust is attached, and the entering water mist affects components on the control panel.

Disclosure of Invention

The utility model aims to provide a power controller with a heat radiation structure, wherein a heat conduction pouring sealant filled in a shell isolates a control panel from contact with air, so that factors such as external dust, water and the like which are unfavorable for the control panel are prevented from contacting with the control panel, and two air guide pipes and an external fan are matched to ensure heat radiation, so that the problem of open heat radiation of the existing controller is solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a power controller with a heat radiation structure comprises a shell, an end sealing plate, a heat radiation device and heat conduction pouring sealant; the end sealing plate is arranged at the end part of the shell, one end of the heat radiating device is arranged on the end sealing plate, the other end of the heat radiating device is arranged inside the shell, and heat conducting pouring sealant is filled outside the heat radiating device inside the shell.

Further, the heat dissipating device comprises two air guide pipes and a fan; two air channels are symmetrically arranged on the end sealing plates, the fans are arranged on the air channels, and each air channel is connected with an air guide pipe.

Further, the air guide pipe comprises a main air pipe, two first air guide bent pipes and two second air guide bent pipes; the outlet of the main air pipe is sequentially connected with two first air guide bent pipes and two second air guide bent pipes.

Further, the air guide pipe is fixed through a limit baffle arranged on the inner side wall of the shell, and air outlets are formed in the side walls of the shell at the positions of the two first air guide bent pipes and the two second air guide bent pipes.

Further, the air guide pipe is made of copper; the copper plate is fixed on the lower surface of the air guide pipe, and a plurality of copper columns are fixed between the upper inner wall and the lower inner wall of the air guide pipe.

Further, the inside wall of the shell is also provided with a guide groove, the control board is arranged on the guide groove in a clamping mode, and the inside wall of the shell is provided with a wiring terminal slot.

Further, the end sealing plates are fixedly connected through an internal thread seat arranged on the shell.

Further, a triangular prism for guiding air is arranged between the two openings on the end sealing plate.

Further, a gap between the air guide pipe and the inner wall of the shell is coated with heat-conducting silica gel.

Compared with the prior art, the utility model has the following technical effects:

according to the utility model, the heat conduction pouring sealant filled in the shell isolates the control panel from external heat dissipation airflow, so that factors such as external dust, water and the like which are unfavorable for the control panel are prevented from contacting the control panel, the heat conduction pouring sealant is solidified to form an intermediate heat conductor, the heat conduction efficiency of the control panel to the shell is improved, and the integral heat dissipation efficiency is ensured by combining the two internal air guide pipes and an external fan.

According to the utility model, the cooling operation is carried out on the power controller in a sealed state through the matching of the fan, the end sealing plates and the two air guide pipes, the overall heat conduction and radiation structure is compact, the air guide and radiation channels of the air guide pipes are large, the overall wind resistance of the pipeline ventilation streamline design is small, and the heat radiation is generally efficient.

According to the utility model, the two layers of heat conduction air guide pipes which are arranged up and down on the control board and are sealed by the heat conduction pouring sealant are used for heat dissipation on the two sides of the control board, and the three-dimensional heat dissipation has a good integral cooling effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a power controller according to the present utility model.

Fig. 2 is an exploded view of the structure of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a cross-sectional view at A-A in fig. 3.

Fig. 5 is a schematic structural view of the housing.

Fig. 6 is a schematic structural view of the end closure plate.

Fig. 7 is a schematic structural view of the air guide pipe.

Fig. 8 is a schematic cross-sectional view of an air duct.

In the drawings, the list of components represented by the various numbers is as follows:

the air conditioner comprises a shell, a control panel, a 3-end sealing plate, a 4-fan, a 5-air guide pipe, a 6-heat conduction pouring sealant, a 11-guide groove, a 12-wiring terminal slot, a 13-internal thread seat, a 14-air outlet, a 15-limit baffle, a 31-air duct, a 32-triangular prism, a 51-main air pipe, a 52-first air guide bent pipe and a 53-second air guide bent pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

First embodiment:

referring to fig. 1-8, the present utility model is a power controller, which includes a housing 1 with an opening at one end, a control board 2 installed in the housing 1 for power control, an end sealing board 3 for sealing, a fan 4, and two air guiding pipes 5. The control board 2 adopts a control board on a power controller in the prior art, and a pair of guide grooves 11 which are in plug-in fit with the control board 2 are symmetrically fixed on the lower half parts of the opposite side walls inside the shell 1. The side wall of the opposite opening end of the shell 1 is provided with a wiring terminal slot 12 matched with the wiring terminal of the control board 2. The inner wall of the open end of the housing 1 is provided with four internal screw seats 13. The end sealing plate 3 is mounted on four internal thread seats 13 by four bolts. The fan 4 is mounted on the end seal plate 3 by four bolts. The end sealing plate 3 is provided with an air duct 31 which is communicated with the air outlet end of the fan 4 and the two air guide pipes 5. The opposite side wall of the shell 1 is provided with an air outlet 14 matched with the air guide pipe 5.

And a heat-conducting pouring sealant 6 is filled between the control panel 2 and the two air guide pipes 5 in the shell 1. The heat-conducting pouring sealant 6 is a bi-component epoxy resin pouring sealant with high heat conductivity, room temperature curing, long working time and fireproof performance. The heat conduction pouring sealant 6 filled in the shell 1 isolates the control panel 2 from being in contact with air, so that the factors such as external dust, water and the like which are unfavorable for the control panel 2 are prevented from being in contact with the control panel 2, the heat conduction pouring sealant 6 for heat conduction is solidified to form an intermediate heat conductor, the heat conduction efficiency of the control panel 2 to the shell 1 is improved, and the heat diffusion efficiency of the control panel 2 is improved.

The heat generated by the control board 2 is transferred to the shell 1 through the solid heat conduction pouring sealant 6 to actively cool, the whole space conducts heat and dissipates heat, and the two air guide pipes 5 inside and the fan 4 outside are combined to improve the overall heat dissipation efficiency.

The middle part of the air duct 31 is fixed with a triangular prism 32 for guiding flow, and two inclined planes of the triangular prism 32 are respectively guided to the air inlet ends of the two air guide pipes 5. Wind resistance is reduced by the two inclined planes of the triangular prism 32, and the effective air inflow entering the air guide pipe 5 is improved.

Wherein the air guide duct 5 comprises a rectangular main air duct 51. The middle part of the main air pipe 51 is symmetrically and fixedly communicated with a pair of first air guide bent pipes 52 relative to the side walls. The air outlet end of the main air pipe 51 is symmetrically provided with a pair of second air guide bent pipes 53. Four air guide bent pipes of the air guide pipe 5 correspond to four air outlets 14.

Wherein, the relative inner wall inside the shell 1 is fixed with a limit baffle 15 for limiting the first air guide elbow 52 or the second air guide elbow 53. The upper limit baffle 15 clamps the upper air guide pipe 5 between the limit baffle 15 and the upper wall of the shell 1. The lower limit baffle 15 clamps the lower air guide pipe 5 between the limit baffle 15 and the lower wall of the shell 1.

Wherein, for more efficient heat conduction and heat dissipation, the air guide pipe 5 is made of copper. The copper plate is fixed on the lower surface of the air guide pipe 5, and a plurality of copper columns are fixed between the upper inner wall and the lower inner wall of the air guide pipe 5. Copper air guide pipe 5 cooperation below fixed surface's copper that is used for expanding the heat conduction face promotes heat conduction pouring sealant 6 to the heat conduction rate of air guide pipe 5, and a plurality of copper posts that air guide pipe 5 inside set up increase the radiating area of air guide pipe 5 under the condition of fan 4 air supply, promote radiating efficiency.

Wherein, the gap between the air guide pipe 5 and the inner wall of the shell 1 is coated with heat conduction silica gel. The gap between the air guide pipe 5 and the aluminum shell 1 is filled with heat conduction silica gel to increase heat conduction between the air guide pipe and the aluminum shell, so that the active heat dissipation efficiency of the aluminum shell is improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The power controller with the heat radiation structure is characterized by comprising a shell (1), an end sealing plate (3), a heat radiation device and a heat conduction pouring sealant (6); the end sealing plate (3) is arranged at the end part of the shell (1), one end of the heat radiating device is arranged on the end sealing plate (3), the other end of the heat radiating device is arranged inside the shell (1), and heat conducting pouring sealant (6) is filled outside the heat radiating device inside the shell (1).

2. A power controller with a heat dissipation structure according to claim 1, characterized in that the heat dissipation device comprises two air guiding pipes (5) and a fan (4); two air channels (31) are symmetrically arranged on the end sealing plate (3), the fan (4) is arranged on the air channels (31), and each air channel (31) is connected with an air guide pipe (5).

3. A power controller with a heat dissipation structure according to claim 2, characterized in that the air duct (5) comprises a main air duct (51), two first air guide elbows (52) and two second air guide elbows (53); the outlet of the main air pipe (51) is sequentially connected with two first air guide bent pipes (52) and two second air guide bent pipes (53).

4. The power controller with the heat radiation structure according to claim 2, characterized in that the air guide pipe (5) is fixed through a limit baffle (15) arranged on the inner side wall of the housing (1), and the air outlets (14) are formed on the side wall of the housing (1) at the positions of the two first air guide bent pipes (52) and the two second air guide bent pipes (53).

5. The power controller with the heat radiation structure according to claim 4, wherein the air guide pipe (5) is made of copper; the copper plate is fixed on the lower surface of the air guide pipe (5), and a plurality of copper columns are fixed between the upper inner wall and the lower inner wall of the air guide pipe (5).

6. The power controller with the heat radiation structure according to claim 1, wherein the inner side wall of the housing (1) is further provided with a guide groove (11), the control board (2) is clamped on the guide groove (11), and the inner side wall of the housing (1) is provided with a wiring terminal slot (12).

7. A power controller with heat dissipation structure according to claim 1, characterized in that the end closure plate (3) is fixedly connected by means of an internally threaded seat (13) provided on the housing (1).

8. A power controller with a heat dissipation structure according to claim 1, characterized in that a triangular prism (32) for guiding air is arranged between two openings in the end sealing plate (3).

9. A power controller with a heat dissipation structure according to claim 2, characterized in that the gap between the air duct (5) and the inner wall of the housing (1) is coated with heat conducting silicone.