CN219478405U

CN219478405U - Controller heat radiation structure

Info

Publication number: CN219478405U
Application number: CN202320125240.9U
Authority: CN
Inventors: 冒亚梅
Original assignee: Suzhou Jiuyu Intelligent Control Technology Co ltd
Current assignee: Suzhou Jiuyu Intelligent Control Technology Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-04
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a controller heat radiation structure, which relates to the technical field of controller heat radiation, and comprises a heat radiation fin arranged on the surface of a circuit board, wherein a mounting frame is arranged on the surface of the heat radiation fin, the mounting frame penetrates through preformed holes of the heat radiation fin and the circuit board through screws and is connected with a shell, a fan is arranged in the mounting frame, and a first air guide opening and a second air guide opening corresponding to two ends of the heat radiation fin are respectively arranged on two sides of the shell. When the electronic water pump controller operates, the fan is electrified to operate and the ventilation effect is guaranteed inside the shell through the first air guide opening and the second air guide opening, heat generated by the circuit board and the electronic element can be transferred to the radiating fin, and the fan operates to introduce external air and guide the heat out of the shell, so that the efficient heat dissipation of the circuit board and the internal circuit board of the controller can be conveniently realized.

Description

Controller heat radiation structure

Technical Field

The utility model relates to the technical field of controller heat dissipation, in particular to a controller heat dissipation structure.

Background

The electronic water pump controller is applied to a new energy automobile thermal management system, such as an auxiliary cooling pump, a battery cooling pump and the like of the new energy automobile. The core part of the shell of the controller is a circuit board, and a plurality of power components are arranged on the circuit board to realize the functions of supporting PWM, LIN, CAN and other communication modes, and being compatible with 12V or 24V voltage systems and the like.

The circuit board and the power components can generate a large amount of heat in the working process, the existing electronic water pump controller generally adopts a closed structure to protect the internal components, and the heat generated by the internal circuit board and the electronic components is slowly dissipated by the shell of the controller, so that the internal heat cannot be timely dissipated, if the heat cannot be timely dissipated, the internal power components can be disabled and other bad conditions can be caused, the controller is further caused to control failure and thermal management failure of the water pump, and the dangerous conditions such as spontaneous combustion of a battery can be caused when serious.

The electronic water pump controller that also has adopts the heat dissipation casing and adopts the heat conduction to glue and pour in order to encapsulate circuit board and electronic components inside the heat dissipation casing, and this kind of structure has solved the heat dissipation problem to a certain extent, but pour the structure and lead to the controller once to go on the maintenance once the problem then, consequently need wholly change the controller to lead to huge cost extravagant.

In addition, the patent of application number 202210830905.6 discloses an automobile water pump controller and heat radiation structure thereof, and heat radiation structure includes: a heat dissipation base plate; the double-sided PCB is arranged on one side of the radiating bottom plate and is detachably connected with the radiating bottom plate; the heat conduction silica gel piece is arranged between the heat dissipation bottom plate and the double-sided PCB and is attached to the heat dissipation bottom plate and the double-sided PCB. Through setting up radiating bottom plate, two-sided PCB board and heat conduction silica gel piece to the integrated configuration that separate radiating bottom plate, heat conduction silica gel piece and two-sided PCB board formed has replaced the integral structure that adopts two-sided aluminium base board in the current controller, can effectually reduce the overall cost of car water pump controller, and separate radiating bottom plate, heat conduction silica gel piece and two-sided PCB board are connected the integrated configuration that forms, and the overall structure size is bigger, can effectually promote overall structural strength, non-deformable. However, the heat dissipation structure of the water pump controller in the prior art still adopts heat conduction type heat dissipation, when heat is transferred to the heat conduction silica gel sheet and the heat dissipation bottom plate from the PCB, the heat is dissipated to the inside of the controller shell from the heat dissipation bottom plate, and the heat is dissipated outwards through the shell, so that the problem that the internal heat cannot be dissipated timely to cause failure of internal power components and the like exists, and further the control failure and the thermal management failure of the controller on the water pump are caused, and the dangerous conditions such as spontaneous combustion of a battery are caused when the heat dissipation is serious.

Disclosure of Invention

The utility model aims to provide a controller heat dissipation structure so as to solve the problem that the electronic water pump controller provided by the background art is slow in heat dissipation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a controller heat dissipation structure comprises a shell and a circuit board fixedly arranged in the shell;

the heat radiation structure is including the installation the fin on circuit board surface, the surface of fin is provided with the mounting bracket, the mounting bracket runs through the screw the preformed hole of fin and circuit board and with the casing is connected, the inside of mounting bracket is provided with the fan, the both sides of casing are provided with respectively and correspond first air guide mouth and the second air guide mouth at fin both ends, the both ends of fin respectively with first air guide mouth and second air guide mouth be perpendicular distribution just the horizontal central line of fin, first air guide mouth and second air guide mouth coincide each other.

Wherein: the middle part of first wind guide opening is the through-hole structure just the inner wall both sides of first wind guide opening are provided with the fixture block, the inside grafting of first wind guide opening has the dehumidification box, the inside of dehumidification box is filled with the active carbon dehumidification granule.

Wherein: one side of the inner wall of the second air guide opening is fixed with a first inclined plate, and the other side of the inner wall of the second air guide opening is fixed with a second inclined plate.

Further: the first inclined plate and the second inclined plate are distributed at equal intervals, and a cross distribution structure is arranged between the first inclined plate and the second inclined plate.

Wherein: sealing strips are adhered to the outer walls of the first air guide opening and the second air guide opening.

Wherein: the outer surface of the shell is provided with a protective shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the circuit board for controlling the electronic water pump is arranged on the inner wall of the shell, the two sides of the radiating fin correspond to the first air guide opening and the second air guide opening respectively, when the electronic water pump controller operates, the fan is electrified to operate, so that the first air guide opening and the second air guide opening ensure that the inside of the shell has a ventilation effect, an electronic element for controlling the electronic water pump can be transferred to the radiating fin when generating heat, and the fan operates to introduce external air and guide the heat out of the shell, thereby being convenient for realizing the efficient heat dissipation of the circuit board in the controller;

2. the dehumidification box filled with the activated carbon dehumidification particles is clamped and installed along the inner side opening of the first air guide opening, so that the dehumidification box is guaranteed to be tightly installed on the inner side of the first air guide opening, when the fan operates, the drying and dehumidification effects are achieved when the inner air and the outer air of the shell circulate and enter the air, and the reliability of components such as a circuit board inside the machine body is guaranteed.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic view of the bottom cross-sectional structure of the present utility model;

fig. 3 is a schematic front view of a heat sink according to the present utility model.

In the figure: 1. a housing; 2. a protective shell; 3. a circuit board; 4. a heat sink; 41. a mounting frame; 42. a screw; 43. a fan; 5. a first air guide port; 51. a clamping block; 52. a dehumidifying box; 6. a second air guide port; 61. a first swash plate; 62. a second swash plate; 7. and (5) a sealing strip.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Examples

Referring to fig. 1-3, embodiment 1 provides a heat dissipation structure of a controller, the controller includes a housing 1 and a circuit board 3 fixedly installed in the housing 1; the heat radiation structure includes the fin 4 on the 3 surface of installation circuit board, the surface of fin 4 is provided with mounting bracket 41, mounting bracket 41 runs through the preformed hole of fin 4 and circuit board 3 and is connected with casing 1 through screw 42, the inside of mounting bracket 41 is provided with fan 43, the both sides of casing 1 are provided with first air guide opening 5 and second air guide opening 6 corresponding fin 4 both ends respectively, the both ends of fin 4 are perpendicular distribution and the horizontal central line of fin 4, first air guide opening 5 and second air guide opening 6 each other coincide with first air guide opening 5 and second air guide opening 6 respectively.

When embodiment 1 is specifically implemented, the circuit board 3 is installed inside the housing 1, so that two sides of the cooling fin 4 correspond to the first air guide opening 5 and the second air guide opening 6 respectively, and the fan 43 in the mounting frame 41 is connected with a power supply through a power line, when the electronic water pump controller operates, the fan 43 is electrified to operate, the ventilation effect inside the housing 1 is ensured through the first air guide opening 5 and the second air guide opening 6, the circuit board and the electronic component for controlling the electronic water pump can transfer heat to the cooling fin 4 when generating heat, and the fan 43 operates to introduce external air and guide the heat out of the housing 1, so that the electronic water pump controller is ensured to have the effect of accelerating heat dissipation, and the efficient heat dissipation of the circuit board 3 in the controller is realized.

Examples

Based on embodiment 1 and referring to fig. 2-3, in embodiment 2, the middle part of the first air guide opening 5 is of a through hole structure, two sides of the inner wall of the first air guide opening 5 are provided with clamping blocks 51, a dehumidifying box 52 is inserted into the first air guide opening 5, active carbon dehumidifying particles are filled in the dehumidifying box 52, the dehumidifying box 52 is of an isosceles trapezoid structure, the length of an external opening of the first air guide opening 5 is smaller than the minimum length of the dehumidifying box 52, and the maximum length of the dehumidifying box 52 is smaller than the interval between the two groups of clamping blocks 51.

In the embodiment 2, the dehumidifying box 52 filled with the activated carbon dehumidifying particles is inserted along the opening of the inner side of the first air guide opening 5, and the dehumidifying box 52 is blocked and limited by the two groups of clamping blocks 51, so that the dehumidifying box 52 can be tightly attached to the inner side of the first air guide opening 5, and when the fan 43 operates, the drying and dehumidifying effects are realized when the air inside and outside the shell 1 circulates and enters the air, and the operation of components such as the circuit board 3 inside the shell 1 is ensured to have safety; by pressing the dehumidifying box 52 along the outer opening of the first air guide opening 5, the dehumidifying box 52 is separated along the clamping block 51, and the activated carbon dehumidifying particles in the dehumidifying box 52 are convenient to replace.

Examples

Based on embodiment 1 or 2 and referring to fig. 2-3, in embodiment 3, a first inclined plate 61 is fixed on one side of the inner wall of the second air guide 6, and a second inclined plate 62 is fixed on the other side of the inner wall of the second air guide 6; the first inclined plate 61 and the second inclined plate 62 are distributed at equal intervals, a cross distribution structure is arranged between the first inclined plate 61 and the second inclined plate 62, and a filter screen is arranged at the outer opening of the second air guide opening 6.

When this embodiment 3 is specifically implemented, through setting up the first swash plate 61 and the second swash plate 62 of alternately distributed structure at the inboard equidistant setting of second wind guide 6 for when the inside hot air of casing 1 outwards discharges, the steam passes through the cross channel of first swash plate 61 and second swash plate 62 and runs through the filter screen, guarantees that the steam can derive casing 1 and realize cooling, simultaneously, through the setting of first swash plate 61, second swash plate 62 and filter screen, make the debris in the outside air can be filtered, and the debris in the air is prevented to the inside that enters into casing 1 to the first swash plate 61 and the second swash plate 62 of alternately distributed can intercept the water stain, and prevent that the water stain from entering and causing electronic component's on the circuit board 3 short circuit.

Examples

Based on any of embodiments 1-3 and referring to fig. 1-3, in embodiment 4, the outer walls of the first air guide port 5 and the second air guide port 6 are adhered with sealing strips 7, and the outer surface of the housing 1 is provided with a protective shell 2.

When embodiment 4 is specifically implemented, when the shell 1 and the protective shell 2 are in butt joint and installation, the groove at the outer edge of the shell 1 is in butt joint with the protrusion of the protective shell 2, and the sealing strip 7 can seal the butt joint position of the first air guide port 5 and the second air guide port 6, so that the butt joint tightness of the shell 1 and the protective shell 2 is ensured.

In summary, the working principle of the utility model is as follows:

after the circuit board 3 is installed on the inner wall of the shell 1, the two ends of the radiating fin 4 are respectively aligned with the inner openings of the first air guide opening 5 and the second air guide opening 6, the shell 1 and the protective shell 2 are installed in a butt joint mode, meanwhile, the shell 1 is installed at a designated part of a pump body of the electronic water pump, the circuit board 3 of the shell 1 is electrified and communicated through a wire inlet on the outer side of the shell 1, the running state of the electronic water pump can be controlled by the circuit board 3 when the circuit board is in operation, and meanwhile, the fan 43 is controlled to conduct electrifying operation to realize rapid heat dissipation and temperature reduction of the circuit board 3 inside the shell 1. In the present utility model, the improvement of the heat dissipation structure belongs to structural improvement, so that the improved heat dissipation structure is not only suitable for an electronic water pump controller, but also suitable for a motor, and has good universality, and the content which is not described in detail in the present specification belongs to the prior art known to the person skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The controller comprises a shell (1) and a circuit board (3) fixedly arranged in the shell (1); the method is characterized in that:

the heat radiation structure is including installing fin (4) on circuit board (3) surface, the surface of fin (4) is provided with mounting bracket (41), mounting bracket (41) run through screw (42) fin (4) and preformed hole of circuit board (3) and with casing (1) are connected, the inside of mounting bracket (41) is provided with fan (43), the both sides of casing (1) are provided with respectively and correspond first air guide mouth (5) and second air guide mouth (6) at fin (4) both ends, the both ends of fin (4) respectively with first air guide mouth (5) and second air guide mouth (6) are perpendicular distribution just the horizontal central line of fin (4), first air guide mouth (5) and second air guide mouth (6) coincide each other.

2. A controller heat dissipation structure as defined in claim 1, wherein: the middle part of first wind guide (5) is through-hole structure just the inner wall both sides of first wind guide (5) are provided with fixture block (51), the inside grafting of first wind guide (5) has dehumidification box (52), the inside of dehumidification box (52) is filled with active carbon dehumidification granule.

3. A controller heat dissipation structure as defined in claim 1, wherein: a first inclined plate (61) is fixed on one side of the inner wall of the second air guide opening (6), and a second inclined plate (62) is fixed on the other side of the inner wall of the second air guide opening (6).

4. A controller heat dissipation structure as defined in claim 3, wherein: the first inclined plates (61) and the second inclined plates (62) are distributed at equal intervals, and a cross distribution structure is formed between the first inclined plates (61) and the second inclined plates (62).

5. A controller heat dissipation structure as defined in claim 1, wherein: the outer walls of the first air guide opening (5) and the second air guide opening (6) are adhered with sealing strips (7).

6. A controller heat dissipation structure as defined in claim 1, wherein: the outer surface of the shell (1) is provided with a protective shell (2).