CN-224204972-U - Power module with dual filtering structure

Abstract

The utility model discloses a power module with a dual filtering structure, which comprises an aluminum shell, an outer support, support screws, side plates and heat dissipation holes, wherein two sides of the aluminum shell are connected with two side plates through a plurality of support screws and outer support bolts, and the plurality of heat dissipation holes are equidistantly formed in the surfaces of the side plates.

Inventors

• MA FENG
• LIU WENHAO
• GAO LONG

Assignees

• 陕西华讯科技有限公司

Dates

Publication Date

20260505

Application Date

20250603

Claims (3)

1. 1. The power module with the double filtering structure comprises an aluminum shell (1), an outer support (2), support screws (3), side plates (4) and radiating holes (5), and is characterized in that two sides of the aluminum shell (1) are connected with two side plates (4) through a plurality of support screws (3) and the outer support (2) through bolts, and the radiating holes (5) are formed in the surfaces of the side plates (4) at equal intervals.
2. 2. The power module with the dual filtering structure of claim 1, wherein the aluminum housing (1) comprises a circuit board (6), a metal substrate (7), an input terminal (8), piezoresistors (9), a circuit board support (10), a bottom plate screw (11) and an inner cavity (12), the metal substrate (7) is fixedly connected to the center of the top of the circuit board (6), the input terminal (8) is fixedly connected to the left side of the circuit board (6), the piezoresistors (9) are fixedly connected to the rear of the input terminal (8), the two circuit board supports (10) are fixedly connected to the bottom of the circuit board (6) at equal intervals, the four bottom plate screws (11) are connected with the inner portion of the aluminum housing (1) through bolts, and the inner cavity (12) is fixedly connected to the top of the metal substrate (7).
3. 3. The power module with the dual filtering structure according to claim 2, wherein the inner cavity (12) comprises a ceramic fiber shell (13), wire guide holes (14), heat dissipation top openings (15), heat dissipation fins (16), electrolytic capacitors (17) and common mode inductors (18), four wire guide holes (14) are formed in the two sides of the front surface of the ceramic fiber shell (13) at equal intervals, the plurality of heat dissipation top openings (15) are formed in the two sides of the top of the ceramic fiber shell (13) at equal intervals, the plurality of heat dissipation fins (16) are fixedly connected to the front center of the ceramic fiber shell (13) at equal intervals, the electrolytic capacitors (17) are fixedly connected to the center of the inner top of the ceramic fiber shell (13), and the two common mode inductors (18) are fixedly connected to the two sides of the inner top of the ceramic fiber shell (13) respectively.

Description

Power module with dual filtering structure Technical Field The utility model relates to a power module with a dual filtering structure. Background The power module is a power conversion tool box for converting external electric energy into stable voltage and current required by equipment, and the power conversion tool box is used for adjusting the voltage and filtering interference signals like an intelligent traffic director through built-in transformer, capacitor, inductor and other elements, so that the electronic equipment is ensured to safely operate in a complex power grid environment, and dead halt, heating or damage caused by voltage fluctuation and electromagnetic interference are avoided, and the power conversion tool box is commonly used in the scenes of chargers, adapters, industrial control systems and the like. The anti-interference and heat dissipation effects of the currently used power module are not ideal enough, and the service life of the power module is influenced. Disclosure of utility model The utility model aims to provide a power module with a dual filtering structure so as to solve the technical problems. The utility model adopts the following technical scheme for realizing the purposes: The utility model provides a power module with dual filtering structure, includes aluminium system shell, outer support, support screw, curb plate, louvre, aluminium system shell both sides are connected with two blocks of curb plates through many support screw and outer support bolted connection, and is a plurality of the louvre equidistance is seted up on the curb plate surface. On the basis of the technical scheme, the aluminum shell comprises a circuit board, a metal substrate, input terminals, piezoresistors, circuit board supports, bottom plate screws and an inner cavity, wherein the metal substrate is fixedly connected to the center of the top of the circuit board, the input terminals are fixedly connected to the left side of the circuit board, the piezoresistors are fixedly connected to the rear of the input terminals, the two circuit board supports are fixedly connected to the bottom of the circuit board at equal intervals, the four bottom plate screws are connected with the inner bolts of the aluminum shell, and the inner cavity is fixedly connected to the top of the metal substrate. On the basis of the technical scheme, the inner cavity comprises a ceramic fiber shell, wire guide holes, heat dissipation top openings, heat dissipation fins, electrolytic capacitors and common-mode inductors, wherein four wire guide holes are formed in the two sides of the front surface of the ceramic fiber shell at equal intervals, a plurality of heat dissipation top openings are formed in the two sides of the top surface of the ceramic fiber shell at equal intervals, a plurality of heat dissipation fins are fixedly connected to the center of the front surface of the ceramic fiber shell at equal intervals, the electrolytic capacitors are fixedly connected to the center of the inner top surface of the ceramic fiber shell, and the two common-mode inductors are fixedly connected to the two sides of the inner top surface of the ceramic fiber shell respectively. Compared with the prior art, the utility model has the advantages that the design structure of the existing power module is improved, the double-shell structure is used for carrying out double physical isolation on high-frequency interference and low-frequency interference, the multi-output heat dissipation structure is added, and the heat dissipation capacity of the power module is improved. Drawings FIG. 1 is a schematic view of the external structure of the present utility model. Fig. 2 is a schematic view of the internal structure of the aluminum housing of the present utility model. Fig. 3 is a schematic view of the internal cavity structure of the present utility model. In the figure, the circuit board is characterized by comprising an aluminum shell 1, an outer support 3, support screws 4, side plates 5, heat dissipation holes 6, a circuit board 7, a metal substrate 8, input terminals 9, piezoresistors 10, a circuit board support 11, a bottom plate screw 12, an inner cavity 13, a ceramic fiber shell 14, a wire guide 15, a heat dissipation top opening 16, heat dissipation fins 17, an electrolytic capacitor 18 and a common mode inductor. Detailed Description The utility model is described in further detail below with reference to the drawings and the specific examples. As shown in fig. 1-3, a power module with a dual filtering structure comprises an aluminum shell 1, an outer support 2, support screws 3, side plates 4 and heat dissipation holes 5, wherein two sides of the aluminum shell 1 are connected with two side plates 4 through a plurality of support screws 3 and the outer support 2 through bolts, and the heat dissipation holes 5 are formed in the surfaces of the side plates 4 at equal intervals. The inside circuit board 6, metal substrate 7,