Double-sided heat dissipation IGBT radiator and active filter

Abstract

The utility model discloses a double-sided heat radiation IGBT radiator and an active filter, the IGBT radiator comprises a heat radiation box body, the heat radiation box body is provided with a plurality of heat radiation through long holes at intervals from top to bottom, and each heat radiation through long hole is arranged along the length direction of the heat radiation box body. IGBTs are fixed to the lower portions of the two side faces of the heat dissipation box body at intervals in the length direction, a plurality of heat dissipation fins arranged at intervals are fixedly arranged on the two sides of the heat dissipation box body from top to bottom in an extending mode, and the distance between every two vertically-adjacent heat dissipation fins corresponds to one heat dissipation through long hole; the two sides of the bottom of the heat dissipation box body are respectively and fixedly provided with two positioning columns which are arranged in a spaced mode, each positioning column and two pins at the bottom of each IGBT are used for being welded to a circuit board in an active filter, and the active filter comprises the IGBT radiator with the double-face heat dissipation function. The two sides of the IGBT radiator can be provided with IGBTs, so that double-sided heat dissipation of the radiator is realized, and the utilization rate of the radiator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to an IGBT radiator with double-sided heat dissipation and an active filter comprising the IGBT radiator. Background Art

[0002] At present, most of the IGBT aluminum profile heat sinks in active filters on the market have IGBT heating components mounted on one side and fins for heat dissipation on the other side. The overall utilization rate of the heat sink is not high. Based on this, the present application designs an IGBT aluminum profile heat sink with double-sided heat dissipation. Utility Model Content

[0003] The utility model aims at the problems and shortcomings of the prior art and provides an IGBT radiator and an active filter with double-sided heat dissipation.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides an IGBT heat sink with double-sided heat dissipation, which is characterized in that it comprises a heat dissipation box body, on which a plurality of heat dissipation through-long holes are spaced apart from top to bottom, each of which is arranged along the length direction of the heat dissipation box body, IGBTs are fixed at intervals along the length direction on the lower parts of the two side surfaces of the heat dissipation box body, and a plurality of heat dissipation fins are fixedly extended from top to bottom on the upper parts of the two side surfaces of the heat dissipation box body, and the spacing between two adjacent heat dissipation fins corresponds to one heat dissipation through-long hole, and two spaced positioning columns are fixed on the two sides of the bottom of the heat dissipation box body, each of which is used for welding on a circuit board in an active filter, and the two pins at the bottom of each IGBT are used for welding on the circuit board in the active filter.

[0006] The utility model also provides an active filter, which is characterized in that it comprises the above-mentioned double-sided heat dissipation IGBT radiator.

[0007] The positive and progressive effects of the utility model are:

[0008] The IGBT radiator of the utility model can be equipped with IGBTs on both sides, so as to realize double-sided heat dissipation of the radiator, improve the utilization rate of the radiator and reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1-2 This is a three-dimensional diagram of a double-sided heat dissipation IGBT heat sink of a preferred embodiment of the utility model.

[0010] Figure 3 This is a three-dimensional diagram of an active filter according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0012] like Figure 1-2 As shown, the present embodiment provides an IGBT heat sink with double-sided heat dissipation, which includes a heat dissipation box 1 made of aluminum profile, a plurality of heat dissipation through long holes 2 are evenly spaced from top to bottom on the heat dissipation box 1, each heat dissipation through long hole 2 is arranged along the length direction of the heat dissipation box 1, and the heights of the heat dissipation through long holes 2 are equal, and mounting holes 3 are evenly spaced along the length direction at the lower parts of the two side surfaces of the heat dissipation box 1, and an IGBT 5 is fixed to each mounting hole 3 by screws 4, so that the IGBT 5 is fixed to the heat dissipation box 1, and a plurality of evenly spaced heat dissipation fins 6 are fixedly extended from top to bottom on the upper parts of the two side surfaces of the heat dissipation box 1, and the spacing between two adjacent heat dissipation fins 6 corresponds to a heat dissipation through long hole 2, and the spacing between adjacent heat dissipation fins 6 is equal to the height of the corresponding heat dissipation through long hole 2, and two spaced positioning columns 7 are fixed on both sides of the bottom of the heat dissipation box 1, and each positioning column 7 is used to be welded on the circuit board in the active filter, and the two pins 51 at the bottom of each IGBT 5 are used to be welded on the circuit board in the active filter.

[0013] like Figure 3 As shown, the present embodiment further provides an active filter, which includes the above-mentioned double-sided heat dissipation IGBT heat sink 10 and a filter housing 20, wherein three evenly spaced heat dissipation fans 21 are installed in the filter housing 20, and an IGBT heat sink 10 is correspondingly arranged at the air outlet position of each heat dissipation fan 21, and each positioning column 7 on each IGBT heat sink 10 and the two bottom pins 51 of each IGBT 5 are welded to the circuit board 22 in the filter housing 20.

[0014] Each IGBT 5 generates heat when working. The generated heat is distributed in the heat dissipation box 1. The heat dissipation box 1 dissipates heat, and the air discharged by the heat dissipation fan 21 blows the heat on the heat dissipation box 1 out of the active filter through the air outlet 23 on the filter housing 20.

[0015] By installing the IGBT 5 on both sides of the heat dissipation box 1, double-sided heat dissipation of the radiator can be achieved, thereby improving the utilization rate of the radiator and reducing the cost.

[0016] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A double-sided heat dissipation IGBT heat sink, characterized in that: It includes a heat dissipation box body, on which a plurality of heat dissipation through-holes are spaced apart from top to bottom, each of which is arranged along the length direction of the heat dissipation box body, IGBTs are fixed at intervals along the length direction on the lower parts of the two side surfaces of the heat dissipation box body, and a plurality of heat dissipation fins are fixedly extended from top to bottom on the upper parts of the two side surfaces of the heat dissipation box body, and the spacing between two adjacent heat dissipation fins corresponds to a heat dissipation through-hole, and two spaced positioning columns are fixed on both sides of the bottom of the heat dissipation box body, each of which is used to be welded on the circuit board in the active filter, and the two bottom pins of each IGBT are used to be welded on the circuit board in the active filter.

2. The double-sided heat dissipation IGBT heat sink according to claim 1, characterized in that: The lower parts of the two side surfaces of the heat dissipation box are evenly spaced along the length direction to form mounting holes, and an IGBT is fixed to each mounting hole by screws, so that the IGBT is fixed to the heat dissipation box.

3. The double-sided heat dissipation IGBT heat sink according to claim 1, characterized in that: The heat dissipation box body is evenly spaced from top to bottom and is provided with a plurality of heat dissipation through-long holes.

4. The double-sided heat dissipation IGBT heat sink according to claim 1, characterized in that: The spacing between adjacent heat dissipation fins is equal to the height of the corresponding heat dissipation through-long holes.

5. The double-sided heat dissipation IGBT heat sink according to claim 1, characterized in that: The heat dissipation box body is made of aluminum profile.

6. An active filter, characterized in that: It comprises the double-sided heat dissipation IGBT heat sink according to any one of claims 1 to 5.

7. The active filter according to claim 6, characterized in that: It includes a filter housing, in which a plurality of cooling fans are installed at intervals, an IGBT heat sink is correspondingly arranged at the air outlet position of each cooling fan, and each positioning column on each IGBT heat sink and the two bottom pins of each IGBT are welded to the circuit board in the filter housing.

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