CN211267551U

CN211267551U - PCB and power electronic device heat abstractor

Info

Publication number: CN211267551U
Application number: CN202020285946.8U
Authority: CN
Inventors: 周友兵
Original assignee: Huaian Vocational College of Information Technology
Current assignee: Huaian Vocational College of Information Technology
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-08-14
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a PCB board and power electron device heat abstractor, the on-line screen storage device comprises a base, the first recess has been seted up to one side position by at base top, bottom fixed mounting in the first recess has the protection to fill up, the inside fixed mounting of first recess has the PCB board, the bottom and the protection of PCB board fill up the contact, the PCB board top lean on one side fixed mounting of position to have two power electron devices, two power electron device's rear end fixedly connected with heat conduction silica gel, heat conduction silica gel's bottom and PCB board fixed connection. This PCB board and power electronic device heat abstractor through the design of heat conduction silica gel and fin, can be with the heat conduction of power electronic device to fin department, avoided the appearance of the overheated condition of power electronic device, and the third recess, fan and fenestrate design can let the user accelerate the heat dissipation to the fin through the fan, have improved the radiating efficiency of this device.

Description

PCB and power electronic device heat abstractor

Technical Field

The utility model relates to a PCB board technical field specifically is a PCB board and power electron device heat abstractor.

Background

The PCB board is a printed circuit board, which is also called a printed circuit board and a printed circuit board, called a printed board for short, called PCB (printed circuit board) for short or PWB (printed wiring board), and the PCB board is cut into a certain size by taking an insulating board as a base material, at least one conductive pattern is attached to the insulating board, and holes (such as element holes, fastening holes, metalized holes and the like) are distributed on the insulating board, so that the PCB board is used for replacing a chassis of an electronic component of the prior device and realizing the mutual connection of the electronic components. Such boards are known as "printed" circuit boards because they are made using electronic printing.

When the power electronic device at the top of the PCB begins to work, the power electronic device is extremely easy to scald, most of the existing PCBs are only provided with a piece of heat dissipation glue, the heat dissipation effect is poor, and the service life of parts can be reduced. Therefore, we propose a PCB board and a heat dissipation device for power electronic devices.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB board and power electronic device heat abstractor to propose in solving above-mentioned background art when the power electronic device at PCB board top begins to work, send out very easily and scald, and current PCB board mostly only disposes a heat dissipation and glues, and the radiating effect is not good, can reduce part life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a PCB and power electronic device heat dissipation device comprises a base, wherein a first groove is formed in the position, close to one side, of the top of the base, a protection pad is fixedly installed at the bottom in the first groove, a PCB is fixedly installed in the first groove, the bottom of the PCB is in contact with the protection pad, two power electronic devices are fixedly installed at the position, close to one side, of the top of the PCB, heat-conducting silica gel is fixedly connected to the rear ends of the two power electronic devices, the bottom of the heat-conducting silica gel is fixedly connected with the PCB, a heat dissipation sheet is fixedly installed at the position, close to the other side, of the top of the base, one side of the heat dissipation sheet is fixedly connected with the heat-conducting silica gel, a support pad is fixedly connected to the bottom of the other side of the heat dissipation sheet, a digital display thermometer is fixedly installed at, one side, far away from the digital display thermometer, of the temperature sensor penetrates through the inside of the radiating fin and is fixedly connected with the radiating fin, a second groove is formed in the top of the other side of the base, close to the middle position, of the top of the other side of the base, and one side, far away from the radiating fin, of the digital display thermometer penetrates through the inside of the second groove and is fixedly connected with the inner wall of the second groove.

Preferably, the bottom of the base is provided with a third groove corresponding to the bottom of the radiating fin, and a first filter screen is fixedly connected to the bottom in the third groove.

Preferably, an installation frame is fixedly installed in the third groove close to the middle, and a fan is movably installed at the top of the installation frame through a rotating shaft.

Preferably, two perforations are formed in the top of the base corresponding to the top of the third groove, and a second filter screen is fixedly mounted inside the two perforations.

Preferably, the both sides of base bottom are equal fixed mounting have the supporting leg, and the equal fixed mounting in bottom of two supporting legs has the slipmat.

Preferably, a switch is fixedly installed at the bottom of the rear end of the other side of the base and is electrically connected with the fan through a power line.

Compared with the prior art, the beneficial effects of the utility model are that: this PCB board and power electronic device heat abstractor, through the design of heat conduction silica gel and fin, can be with power electronic device's heat conduction to fin department, the appearance of the overheated condition of power electronic device has been avoided, the third recess, fan and fenestrate design, can let the user accelerate the heat dissipation to the fin through the fan, the radiating efficiency of this device has been improved, digital display thermometer and temperature sensor's design, can let the user know the temperature of fin with digital form, whether open the fan in order to decide, it is directly perceived, the user uses has been made things convenient for.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is an enlarged partial view of a in fig. 2 according to the present invention;

fig. 4 is a top view of the base of the present invention.

In the figure: 1. a base; 2. a first groove; 3. a protective pad; 4. a PCB board; 5. a power electronic device; 6. heat conducting silica gel; 7. a heat sink; 8. a second groove; 9. a digital display thermometer; 10. a switch; 11. a third groove; 12. a mounting frame; 13. a fan; 14. a first filter screen; 15. a temperature sensor; 16. a support pad; 17. perforating; 18. a second filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a heat dissipation device for a PCB and a power electronic device comprises a base 1, a first groove 2 is arranged at one side position near the top of the base 1, a protective pad 3 is fixedly arranged at the bottom in the first groove 2, a PCB 4 is fixedly arranged in the first groove 2, the bottom of the PCB 4 is contacted with the protective pad 3, the protective pad 3 can reduce the abrasion between the PCB 4 and the first groove 2, two power electronic devices 5 are fixedly arranged at one side position near the top of the PCB 4, heat-conducting silica gel 6 is fixedly connected with the rear ends of the two power electronic devices 5, the bottom of the heat-conducting silica gel 6 is fixedly connected with the PCB 4, a heat dissipation fin 7 is fixedly arranged at the other side position near the top of the base 1, one side of the heat dissipation fin 7 is fixedly connected with the heat-conducting silica gel 6, a support pad 16 is fixedly connected with the bottom of the other side of the heat dissipation fin 7, and, the model that digital display thermometer 9 adopted is WST-411, one side fixedly connected with temperature sensor 15 that digital display thermometer 9 is close to fin 7, the model that temperature sensor 15 adopted is PT100, one side that temperature sensor 15 kept away from digital display thermometer 9 runs through to the inside of fin 7 and rather than fixed connection, second recess 8 has been seted up by the intermediate position near the opposite side top of base 1, one side that fin 7 was kept away from to digital display thermometer 9 runs through to the inside of second recess 8 and rather than inner wall fixed connection.

The utility model discloses in: a third groove 11 is formed in the bottom of the base 1 corresponding to the bottom of the radiating fin 7, and a first filter screen 14 is fixedly connected to the bottom in the third groove 11; through the design of first filter 14, debris in the air can be filtered.

The utility model discloses in: an installation frame 12 is fixedly installed in the third groove 11 close to the middle, and a fan 13 is movably installed at the top of the installation frame 12 through a rotating shaft; by means of the design of the fan 13, a flow of ambient air can be brought about.

The utility model discloses in: the top of the base 1 corresponding to the top of the third groove 11 is provided with two through holes 17, and a second filter screen 18 is fixedly arranged inside each through hole 17; through the design of second filter 18, can play dustproof effect.

The utility model discloses in: supporting legs are fixedly arranged on two sides of the bottom of the base 1, and anti-skid pads are fixedly arranged on the bottoms of the two supporting legs; through the design of the non-slip mat, the non-slip effect is achieved.

The utility model discloses in: a switch 10 is fixedly arranged at the bottom of the rear end of the other side of the base 1, and the switch 10 is electrically connected with a fan 13 through a power line; by the design of the switch 10, the user can freely control the on-off state of the fan 13 according to specific situations.

The working principle is as follows: when the PCB 4 and the power electronic device 5 on the top of the PCB start to work, the power electronic device 5 starts to generate heat, the heat is conducted to the radiating fin 7 through the heat conducting silica gel 6, the temperature displayed on the digital display thermometer 9 is observed, if the temperature is too high, the switch 10 is turned on, at the moment, the fan 13 starts to rotate and blows air to the radiating fin 7 through the third groove 11 and the through holes 17, the flowing speed of the air around the radiating fin 7 is accelerated, and the radiating speed is also higher.

In summary, the following steps: this PCB board and power electronic device heat abstractor, design through heat conduction silica gel 6 and fin 7, can be with power electronic device 5's heat conduction to fin 7 department, the emergence of the overheated condition of power electronic device 5 has been avoided, third recess 11, fan 13 and perforation 17's design, can let the user accelerate the heat dissipation to the fin through fan 13, the radiating efficiency of this device has been improved, digital display thermometer 9 and temperature sensor 15's design, can let the user know the temperature of fin 7 with the form of digit, with the decision whether open fan 13, it is directly perceived, and convenience is brought to the user.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components appearing in the paper are all electrically connected with an external main controller and 220V mains supply, the main controller can be a servo motor, a contact sensor, a processor, an alarm module, a driving module and other conventional known devices for controlling, standard parts used in the application document can be purchased from the market, the specific connection mode of each part is connected by conventional means such as mature bolts, rivets and welding in the prior art, machines, parts and devices are all of conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that detailed description is not given.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB board and power electron device heat abstractor, includes base (1), its characterized in that: the base is characterized in that a first groove (2) is formed in the top of the base (1) and is located on one side, a protection pad (3) is fixedly arranged at the bottom of the first groove (2), a PCB (printed circuit board) (4) is fixedly arranged in the first groove (2), the bottom of the PCB (4) is in contact with the protection pad (3), two power electronic devices (5) are fixedly arranged on one side of the top of the PCB (4), heat-conducting silica gel (6) is fixedly connected to the rear ends of the two power electronic devices (5), the bottom of the heat-conducting silica gel (6) is fixedly connected with the PCB (4), a radiating fin (7) is fixedly arranged on the other side of the top of the base (1), one side of the radiating fin (7) is fixedly connected with the heat-conducting silica gel (6), a supporting pad (16) is fixedly connected to the bottom of the other side of the radiating fin (7), and a digital thermometer (9) is fixedly arranged, digital display thermometer (9) are close to one side fixedly connected with temperature sensor (15) of fin (7), one side that digital display thermometer (9) were kept away from in temperature sensor (15) runs through to the inside of fin (7) and rather than fixed connection, base (1) opposite side top lean on the intermediate position and seted up second recess (8), one side that fin (7) were kept away from in digital display thermometer (9) runs through to the inside of second recess (8) and rather than inner wall fixed connection.

2. The PCB board and power electronic device heat sink of claim 1, wherein: the bottom of base (1) corresponds the bottom of fin (7) and has seted up third recess (11), bottom fixedly connected with first filter screen (14) in third recess (11).

3. The PCB board and power electronic device heat sink of claim 2, wherein: an installation frame (12) is fixedly installed in the third groove (11) close to the middle position, and a fan (13) is movably installed at the top of the installation frame (12) through a rotating shaft.

4. The PCB board and power electronic device heat sink of claim 1, wherein: two perforations (17) have been seted up to the top of base (1) corresponding the top of third recess (11), and the equal fixed mounting in inside of two perforations (17) has second filter screen (18).

5. The PCB board and power electronic device heat sink of claim 1, wherein: the supporting legs are fixedly mounted on two sides of the bottom of the base (1), and the anti-slip pads are fixedly mounted on the bottoms of the two supporting legs.

6. The PCB board and power electronic device heat sink of claim 1, wherein: the base (1) is fixed with switch (10) in the bottom of another side rear end, switch (10) pass through power cord and fan (13) electric connection.