Power module assembly

Abstract

The utility model discloses a power module assembly, which comprises a bottom shell, a power module driving circuit, four connecting screw holes, a heat dissipation structure and fastening screws, the power module driving circuit is in bolted connection with the inner side of the upper part of the bottom shell, and the four connecting screw holes are respectively arranged at the two sides of the top of the bottom shell at equal intervals. According to the utility model, the design structure of the existing power module assembly is improved, the heat dissipation effect of the power module is improved through the independent heat dissipation structure, and the working stability of internal elements is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of power module assemblies. BACKGROUND

[0002] Power module assembly is the module that power power electronic device is combined according to certain function and is filled, it is advanced hybrid integrated power component with IGBT as core, is composed of high-speed low-power tube core (IGBT) and optimized gate drive circuit and fast protection circuit.The assembly can realize electric energy conversion, power amplification, power control and protection etc., is the vital component in power electronics field.

[0003] The heat dissipation effect of currently used power module assembly is poor, internal components are prone to aging and failure under long-time work, affecting the normal work of power module. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of power module assembly to solve the above technical problem.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of power module assembly, including bottom shell, power module drive circuit, connecting screw hole, heat dissipation structure, fastening screw, the power module drive circuit is bolted on the bottom shell upper inner side, four the connecting screw hole is respectively equidistantly opened in bottom shell top two sides, the heat dissipation structure is bolted on the top of bottom shell by four fastening screws.

[0007] On the basis of the above technical scheme, the heat dissipation structure includes top shell, heat dissipation plate, inner groove, circulating heat dissipation device, the top shell top equidistantly is fixedly connected with multiple heat dissipation plates, the inner groove is opened in top shell interior, and the circulating heat dissipation device is fixedly connected in inner groove inner side top.

[0008] On the basis of the above technical scheme, the circulating heat dissipation device includes copper water pipe, micro pump, water inlet pipe, water outlet pipe, heat-conducting heat exchange head, the micro pump is installed at the tail of copper water pipe, the water inlet pipe is installed between micro pump outer side and heat-conducting heat exchange head, and the water outlet pipe is installed between copper water pipe front end and heat-conducting heat exchange head.

[0009] Compared with prior art, the utility model has the following advantages: the utility model improves the design structure of existing power module assembly, improves the heat dissipation effect of power module by independent heat dissipation structure, and ensures the stability of internal component work. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the appearance structure schematic diagram of the utility model.

[0011] Fig. 2 The utility model discloses a heat dissipation structure schematic diagram.

[0012] Fig. 3 The utility model discloses a circulating heat dissipation device structure schematic diagram.

[0013] In the drawing: 1. bottom shell, 2. power module drive circuit, 3. connecting screw hole, 4. heat dissipation structure, 5. fastening screw, 6. top shell, 7. heat dissipation plate, 8. inner groove, 9. circulating heat dissipation device, 10. copper water pipe, 11. micro pump machine, 12. water inlet pipe, 13. water outlet pipe, 14. heat conduction heat exchange head. DETAILED DESCRIPTION

[0014] The utility model will be further described in detail below in combination with the drawings and specific embodiment.

[0015] As Figs. 1-3 The utility model discloses a power module assembly, including bottom shell 1, power module drive circuit 2, connecting screw hole 3, heat dissipation structure 4, fastening screw 5, the bottom shell 1 upper inner side bolt connection has power module drive circuit 2, four connecting screw hole 3 are respectively equidistantly set up in bottom shell 1 top both sides, heat dissipation structure 4 is bolted through four fastening screws 5 in bottom shell 1 top.

[0016] Heat dissipation structure 4 includes top shell 6, heat dissipation plate 7, inner groove 8, circulating heat dissipation device 9, top shell 6 top equidistant fixed connection has multiple heat dissipation plate 7, inner groove 8 is set up in top shell 6 inside, circulating heat dissipation device 9 is fixedly connected in inner groove 8 inner side top.

[0017] Circulating heat dissipation device 9 includes copper water pipe 10, micro pump machine 11, water inlet pipe 12, water outlet pipe 13, heat conduction heat exchange head 14, copper water pipe 10 tail is installed with micro pump machine 11, water inlet pipe 12 is installed between micro pump machine 11 outer side and heat conduction heat exchange head 14, water outlet pipe 13 is installed between copper water pipe 10 front end and heat conduction heat exchange head 14.

[0018] The utility model discloses a power module assembly, including bottom shell 1, power module drive circuit 2, connecting screw hole 3, heat dissipation structure 4, fastening screw 5, the bottom shell 1 upper inner side bolt connection has power module drive circuit 2, four connecting screw hole 3 are respectively equidistantly set up in bottom shell 1 top both sides, heat dissipation structure 4 is bolted through four fastening screws 5 in bottom shell 1 top. The working principle of the utility model: the novel copper water pipe is injected with cooling liquid when using, then smears silicon grease on the processor of power module assembly, then the bottom of heat conduction heat exchange head is aligned with the processor, makes silicon grease exist between the processor and heat conduction heat exchange head evenly, electrically connects micro pump machine with power module drive circuit, and top shell is bolted on the top of bottom shell;When power module starts, circulating heat dissipation device starts work, cooling liquid circulates in copper water pipe and heat conduction heat exchange head by the action of micro pump machine, and heat is transferred from processor to heat conduction heat exchange head, to cooling liquid, to copper water pipe and heat dissipation fin fixedly connected on top by circulating cooling liquid, and the heat dissipation effect is strengthened.

[0019] The above is the preferred embodiment of the present application, for those skilled in the art, according to the teaching of the present application, without departing from the principles and spirit of the present application, the change, modification, replacement and modification of the embodiment still fall within the scope of the present application.

Claims

1. A power module assembly, comprising a bottom shell (1), a power module drive circuit (2), a connecting screw hole (3), a heat dissipation structure (4), a fastening screw (5), characterized in that: The power module drive circuit (2) is bolted to the top inner side of the bottom shell (1), four connecting screw holes (3) are equidistantly arranged on the top of the bottom shell (1), and the heat dissipation structure (4) is bolted to the top of the bottom shell (1) through four fastening screws (5).

2. A power module assembly according to claim 1, characterized in that: The heat dissipation structure (4) comprises a top shell (6), heat dissipation plates (7), an inner groove (8) and a circulating heat dissipation device (9), a plurality of heat dissipation plates (7) are equidistantly fixed to the top of the top shell (6), the inner groove (8) is arranged in the top shell (6), and the circulating heat dissipation device (9) is fixed to the top of the inner side of the inner groove (8).

3. A power module assembly according to claim 2, characterised in that: The circulating heat dissipation device (9) comprises a copper water pipe (10), a micro pump (11), an inlet pipe (12), an outlet pipe (13) and a heat-conducting heat exchange head (14), the micro pump (11) is arranged at the tail of the copper water pipe (10), the inlet pipe (12) is arranged between the micro pump (11) and the heat-conducting heat exchange head (14) on the outer side of the micro pump (11), and the outlet pipe (13) is arranged between the front end of the copper water pipe (10) and the heat-conducting heat exchange head (14).

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