A power module that is easy to dissipate heat

Abstract

The utility model relates to the technical field of power modules, and specifically refers to a power module that is easy to dissipate heat, including a bottom plate, a shell connected to the bottom plate, a power module body plugged and fixed on the upper end of the bottom plate, a pair of connection pins passing through the shell are respectively provided on both sides of the upper end of the power module body, a plurality of heat dissipation fins 1 are fixed to the lower end of the bottom plate, a plurality of heat dissipation fins 2 and 3 are respectively provided inside and outside the shell, and ventilation ports are provided on the left and right ends of the shell, and a pair of dustproof nets 1 and exhaust components are respectively connected to the outside of the ventilation ports. The advantages of the utility model are: through the cooperation of the bottom plate, the shell, and the heat dissipation fins 2 made of metal materials, it is convenient to quickly absorb the heat in the shell, and the heat dissipation is carried out through the heat dissipation fins 1 and 3 located on the outside, and the ventilation and heat dissipation in the shell are carried out through the cooperation of the ventilation ports, the exhaust components, and the heat dissipation fins 2, thereby improving the heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of power modules, in particular to a power module which is convenient for heat dissipation. Background Art

[0002] A power module is a power functional component that can be mounted directly on a printed circuit board or through a connector. It is used to power various loads in various electronic devices and can greatly simplify the power design of electronic application systems. It can provide power for application-specific integrated circuits ASICs, digital signal processors (DSPs), microprocessors, memories, field programmable gate arrays (FPGAs) and other digital or analog loads.

[0003] Existing power modules usually dissipate heat through multiple heat sinks fixed on their casing, but the heat dissipation efficiency is low. Alternatively, the fin heat sink is fixed to the surface of the heating element by screws or thermal double-sided tape to reduce the component temperature and ensure the normal operation of the heat dissipation module. However, this heat dissipation method requires the separate purchase of heat sinks, screws, thermal double-sided tape and other parts, which increases costs and makes installation more cumbersome. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the existing power module has low efficiency in heat dissipation through multiple heat sinks on the shell, or heat is dissipated by purchasing parts such as heat sinks, screws, thermal double-sided adhesive tape, etc. and fixing them on the surface of the heating element, which is cumbersome to install and increases the cost.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a power module that is easy to dissipate heat, including a base plate, a shell is bolted on the base plate, a power module body located in the shell is plugged and fixed on the upper end of the base plate, a pair of wiring pins are respectively provided on both sides of the upper end of the power module body, and a pair of openings for the wiring pins to pass through are respectively provided at both ends of the shell, a number of equidistant heat dissipation fins 1 are fixed to the lower end of the base plate, a number of equidistant heat dissipation fins 2 and heat dissipation fins 3 are respectively provided inside and outside the shell, ventilation holes are provided on the left and right ends of the shell, and a dust screen 1 and an exhaust component are respectively screwed to the outside of the pair of ventilation holes.

[0008] Furthermore, the exhaust assembly includes an exhaust pipe screwed to the outside of the vent, a fan is installed in the exhaust pipe, and a dustproof net 2 is bolted to the end of the exhaust pipe.

[0009] Furthermore, the fan comprises a cross bracket installed in the exhaust duct, a motor is installed at the inner center of the cross bracket, and an output end of the motor passes through the cross bracket and is connected to a fan blade group.

[0010] Furthermore, a plurality of the heat dissipation fins 2 are laterally and equidistantly arranged on six side walls in the housing.

[0011] Furthermore, some of the base plates and shells are made of metal.

[0012] Furthermore, a plug rod is vertically fixed at each of the four corners of the upper end of the base plate, a positioning hole for the plug rod to pass through is provided at each of the four corners of the power module body, and a positioning sleeve is fixed at each of the four corners of the top wall of the shell to cooperate with the plug rod and contact the power module body.

[0013] Furthermore, the bottom plate and the two ends of the shell are each provided with a corresponding pair of connecting ears 1 and 2 connected by bolts.

[0014] 3. Beneficial Effects

[0015] The advantages of the utility model compared with the prior art are:

[0016] 1. The metal bottom plate, the housing, and the heat sink fin 2 are combined to quickly absorb the heat emitted by the power module body when it is working, and the heat is dissipated through the heat sink fin 1 and the heat sink fin 3 located on the outside.

[0017] 2. The housing is ventilated through a pair of vents and exhaust components, so that the wind passes through the power module body and between two adjacent heat sinks, which is convenient for taking away the heat on the power module body and the heat sink, thereby improving the heat dissipation efficiency.

[0018] 3. The dustproof nets 1 and 2 installed outside the ventilation opening and exhaust duct respectively prevent external dust and impurities from entering the housing and affecting the service life of the power module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the utility model.

[0020] Figure 2 It is an overall exploded structural diagram of the utility model.

[0021] Figure 3 It is a structural diagram of the fan of the utility model.

[0022] Figure 4 It is a diagram of the internal structure of the shell of the utility model.

[0023] As shown in the figure: 1. Base plate; 2. Shell; 201. Opening; 202. Vent; 3. Power module body; 301. Positioning hole; 4. Wiring pin; 5. Heat sink fin one; 6. Heat sink fin two; 7. Heat sink fin three; 8. Dust screen one; 9. Exhaust assembly; 10. Exhaust duct; 11. Fan; 12. Dust screen two; 13. Cross bracket; 14. Motor; 15. Fan blade assembly; 16. Rod; 17. Positioning sleeve; 18. Connecting ear one; 19. Connecting ear two. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Embodiment 1

[0026] Combined with Figure 1 , Attachment Figure 2 and attached Figure 4 A power module that is easy to dissipate heat, includes a base plate 1, a shell 2 is bolted to the base plate 1, and a pair of connecting ears 18 and 19 are respectively provided at both ends of the base plate 1 and the shell 2, and a power module body 3 located in the shell 2 is plugged and fixed at the upper end of the base plate 1, and a pair of wiring pins 4 are respectively provided on both sides of the upper end of the power module body 3, and a pair of openings 201 through which the wiring pins 4 pass are respectively provided at both ends of the shell 2, and a plug rod 16 is vertically fixed at each of the four corners of the upper end of the base plate 1, and a positioning hole 301 through which the plug rod 16 passes is respectively provided at each of the four corners of the power module body 3, and a positioning sleeve 17 that cooperates with the plug rod 16 and contacts the power module body 3 is respectively fixed at each of the four corners of the inner top wall of the shell 2.

[0027] In combination with the above structure, the power module body 3 is placed on the base plate 1 through the positioning hole 301 and the insertion rod 16, and the shell 2 is connected to the base plate 1 by bolts, so that the insertion rod 16 is inserted into the positioning sleeve 17 and the bottom end of the positioning sleeve 17 contacts the power module body 3, thereby realizing the installation and fixation of the power module body 3.

[0028] Combined with Figure 2 The base plates 1 and shells 2 are made of metal. A plurality of equidistant heat dissipation fins 5 are fixed to the lower end of the base plate 1. A plurality of equidistant heat dissipation fins 2 6 and heat dissipation fins 3 7 are respectively arranged inside and outside the shell 2. Ventilation holes 202 are arranged on the left and right ends of the shell 2. A pair of dustproof nets 8 and exhaust components 9 are respectively screwed to the outside of the vents 202.

[0029] In combination with the above structure, the metal base plate 1, shell 2, and heat sink fin 2 6 cooperate to absorb the heat emitted by the power module body 3 when it is working, and dissipate the heat through the heat sink fin 1 5 and heat sink fin 3 7 located on the outside, and dissipate the heat inside the shell 2 through a pair of vents 202, exhaust components 9, and heat sink fin 2 6, thereby improving the heat dissipation efficiency.

[0030] Combined with Figure 2 The exhaust assembly 9 includes an exhaust pipe 10 screwed to the outside of the vent 202, a fan 11 is installed in the exhaust pipe 10, and a dustproof net 12 is bolted to the end of the exhaust pipe 10.

[0031] In combination with the above structure, the dustproof net 1 8 and the dustproof net 2 12 prevent external dust and impurities from entering the housing 2 and affecting the service life of the power module body 3 .

[0032] Combined with Figure 3 The fan 11 includes a cross bracket 13 installed in the exhaust pipe 10, a motor 14 is installed at the inner center of the cross bracket 13, and the output end of the motor 14 passes through the cross bracket 13 and is connected to a fan blade group 15.

[0033] Combined with Figure 4 The plurality of heat dissipating fins 26 are horizontally and equidistantly arranged on the six side walls of the housing 2, so that when the fan 11 exhausts air, the wind passes between two adjacent heat dissipating fins 26, thereby taking away the heat on the heat dissipating fins 26 and improving the heat dissipation efficiency.

[0034] The specific usage is as follows:

[0035] The metal base plate 1, shell 2, and heat sink fins 2 6 cooperate to quickly absorb the heat emitted by the power module body 3 when it is working, and dissipate the heat through the heat sink fins 1 5 and heat sink fins 3 7 located on the outside. The shell 2 is ventilated through a pair of vents 202 and the exhaust assembly 9, so that the wind passes through the power module body 3 and the two adjacent heat sink fins 2 6, which is convenient for taking away the heat on the power module body 3 and the heat sink fins 2 6, thereby improving the heat dissipation efficiency.

[0036] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A power module for heat dissipation, comprising a base plate (1), a housing (2) being bolted to the base plate (1), a power module body (3) located in the housing (2) being plugged and fixed to the upper end of the base plate (1), characterized in that: A pair of connection pins (4) are respectively provided on both sides of the upper end of the power module body (3); a pair of openings (201) through which the connection pins (4) pass are respectively provided at both ends of the shell (2); a plurality of equidistant heat sink fins (5) are fixed to the lower end of the base plate (1); a plurality of equidistant heat sink fins (6) and heat sink fins (7) are respectively provided inside and outside the shell (2); ventilation openings (202) are respectively provided on the left and right ends of the shell (2); a pair of dust screens (8) and exhaust components (9) are respectively screwed to the outside of the ventilation openings (202).

2. A power module for facilitating heat dissipation according to claim 1, characterized in that: The exhaust assembly (9) comprises an exhaust pipe (10) screwed to the outside of the vent (202), a fan (11) is installed in the exhaust pipe (10), and a dustproof net (12) is bolted to the end of the exhaust pipe (10).

3. A power module for facilitating heat dissipation according to claim 2, characterized in that: The fan (11) comprises a cross bracket (13) installed in the exhaust pipe (10), a motor (14) is installed at the inner center of the cross bracket (13), and the output end of the motor (14) passes through the cross bracket (13) and is connected to a fan blade group (15).

4. A power module for facilitating heat dissipation according to claim 1, characterized in that: A plurality of heat dissipation fins 2 (6) are arranged laterally and equidistantly on six side walls inside the housing (2).

5. The power module for facilitating heat dissipation according to claim 1, characterized in that: The base plates (1) and shells (2) are all made of metal.

6. A power module for facilitating heat dissipation according to claim 1, characterized in that: Insertion rods (16) are vertically fixed at the four corners of the upper end of the base plate (1), positioning holes (301) through which the insertion rods (16) pass are provided at the four corners of the power module body (3), and positioning sleeves (17) that cooperate with the insertion rods (16) and contact the power module body (3) are fixed at the four corners of the inner top wall of the shell (2).

7. The power module for facilitating heat dissipation according to claim 1, characterized in that: The bottom plate (1) and the shell (2) are each provided with a corresponding pair of connecting ears 1 (18) and 2 (19) connected by bolts at both ends.

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