CN215222814U - Vehicle-mounted converter and automobile - Google Patents

Abstract

The utility model provides an on-vehicle converter, including casing, circuit board, support piece, radiating block, heat-conducting piece and electronic component, the casing has accepts the chamber, it has the open end to accept the chamber, the circuit board closing cap the open end, support piece set up in accept the chamber bottom, the radiating block is fixed in support piece keeps away from the bottom one end of accepting the chamber, the heat-conducting piece pastes and locates the radiating block is kept away from support piece one end, electronic component's one side with heat-conducting piece butt, electronic component's another side with circuit board fixed connection. The support piece is arranged in the shell, and the heat conduction block and the heat dissipation piece are attached to the support piece, so that the heat dissipation of the electronic element is assisted, and the heat dissipation efficiency of the electronic element is improved.

Description

Vehicle-mounted converter and automobile

Technical Field

The utility model relates to a new energy automobile field especially relates to an on-vehicle converter and car.

Background

With the increasing number of electronic components in the vehicle-mounted converter of the new energy automobile, the requirement on heat dissipation is higher and higher; therefore, efficient heat dissipation is a major concern in the industry, electronic components in the vehicle-mounted converter are usually fixed on the circuit board, and heat dissipation of the electronic components is also a problem that is difficult to solve.

SUMMERY OF THE UTILITY MODEL

The utility model provides an on-vehicle converter and car for solve electronic components is in heat dissipation problem among the on-vehicle converter.

On the one hand, this application embodiment provides an on-vehicle converter, including casing, circuit board, support piece, radiating block, heat-conducting piece and electronic component, the casing has accepts the chamber, it has the open end to accept the chamber, the circuit board closing cap the open end, support piece set up in accept the chamber bottom, the radiating block is fixed in support piece keeps away from the bottom one end of accepting the chamber, heat-conducting piece pastes and locates the radiating block is kept away from support piece one end, electronic component's one side with heat-conducting piece butt, electronic component's another side with circuit board fixed connection.

Wherein, support piece includes first support column, second support column and locates first support column with splice bar between the second support column, first support column the splice bar with second support column integrated into one piece, first support column with the second support column sets up to follow the direction of radiating block extends.

The first supporting column is provided with a first supporting surface far away from the bottom of the accommodating cavity, the second supporting column is provided with a second supporting surface far away from the bottom of the accommodating cavity, and the first supporting surface is close to the bottom of the accommodating cavity relative to the second supporting surface.

Wherein, the splice bar has first connecting portion and second connecting portion, first connecting portion with first support column connects, the second connecting portion with the second support column is connected, first connecting portion have the orientation the first terminal surface of radiating block, first terminal surface and first holding surface parallel and level, the second connecting portion have the orientation the second terminal surface of radiating block, second terminal surface and second holding surface parallel and level.

The connecting rib is provided with a bent end face, and the bent end face is connected with the first end face and the second end face.

The radiating block comprises a first radiating part, a second radiating part and a bent part, the first radiating part, the second radiating part and the bent part are integrally formed, the first radiating part is attached to the first supporting surface and the first end surface, the second radiating part is attached to the second supporting surface and the second end surface, and the bent part is attached to the bent end surface.

The vehicle-mounted converter further comprises a first fastener and a second fastener, the first support column is provided with a first positioning hole, the second support column is provided with a second positioning hole, the heat dissipation block is provided with a first through hole and a second through hole, the first through hole is formed in the first heat dissipation portion, the second through hole is formed in the second heat dissipation portion, the first fastener penetrates through the first through hole and is inserted into the first positioning hole, and the second fastener penetrates through the second through hole and is inserted into the second positioning hole.

The peripheral sides of the first support column and the second support column are conical surfaces, and the outer diameters of the conical surfaces are gradually reduced along the direction close to one end of the circuit board.

Wherein, the electronic component is partially jointed with one surface of the heat conducting piece which is abutted against.

On the other hand, the embodiment of the application also provides an automobile which comprises the vehicle-mounted converter.

In the application, the support piece is arranged in the shell, and the heat conduction block and the heat dissipation piece are attached to the support piece, so that the heat dissipation of the electronic element is assisted, and the heat dissipation efficiency of the electronic element is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a vehicle-mounted converter provided in the present application.

Fig. 2 is a schematic cross-sectional view of the vehicle-mounted converter provided in the present application.

Fig. 3 is a perspective view of a support provided herein.

Fig. 4 is a perspective view of a heat dissipation block provided in the present application.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1, the present application provides a vehicle-mounted converter 100, which includes a housing 10, a circuit board 70, a supporting member 20, a heat dissipation block 30, a heat conduction member 50, and an electronic component, wherein the housing 10 has an accommodating cavity 10a, the accommodating cavity 10a has an open end, the circuit board 70 covers the open end, the supporting member 20 is disposed at a bottom 11 of the accommodating cavity, the heat dissipation block 30 is fixed at one end of the supporting member 20, which is far away from the accommodating cavity 10a, the heat conduction member 50 is attached to one end of the heat dissipation block 30, which is far away from the supporting member 20, one surface of the electronic component 60 abuts against the heat conduction member 50, and the other surface of the electronic component 60 is fixedly connected to the circuit board 70.

Specifically, the supporting member 20 is convexly disposed at the bottom 11 of the accommodating cavity, the supporting member 20 and the housing 10 are integrally formed, so that the supporting member 20 has high stability, the heat dissipating block 30 is a sheet metal part, has good heat conducting performance and good stability, the heat dissipating block 30 is attached to the supporting member 20, the area of one surface of the heat dissipating block 30 facing the bottom is larger than the area of one surface of the supporting member 20 facing the circuit board 70, and completely covers one surface of the supporting member 20 facing the circuit board 70, the heat conducting member 50 is heat conducting silica gel, and has a good heat dissipating effect, the heat conducting member 50 is of a variable structure, the heat conducting member 50 is completely attached to one surface of the heat dissipating block 30 facing the circuit board 70, the electronic element 60 is a capacitor, one surface of the electronic element 60 facing the bottom is attached to the heat conducting member 50, it can be understood that the thermal conductive member 50 is disposed between the heat dissipating block 30 and the electronic component 60 to prevent the electronic component 60 from directly abutting against the heat dissipating block 30 to cause abrasion, and the thermal conductive member 50 can also increase the heat dissipating effect of the electronic component 60, wherein a surface of the electronic component 60 facing away from the bottom is attached to the circuit board 70, the electronic component 60 is fixed on the circuit board 70 by soldering, and the circuit board 70 is covered on the opening end, so that the electronic component 60 is accommodated in the accommodating cavity 10 a.

In the present application, the supporting member 20 is additionally disposed at the bottom 11 of the accommodating cavity of the housing 10, so as to increase the stability of the electronic component 60, the heat dissipating block 30 and the heat conducting member 50 are attached to the supporting member 20, and the electronic component 60 abuts against the heat conducting member 50, so as to improve the heat dissipating efficiency of the electronic component 60.

Further, referring to fig. 2, the supporting member 20 includes a first supporting column 21, a second supporting column 22, and a connecting rib 23 disposed between the first supporting column 21 and the second supporting column 22, the first supporting column 21, the connecting rib 23, and the second supporting column 22 are integrally formed, and the first supporting column 21 and the second supporting column 22 are disposed to extend toward the heat dissipation block 30.

Specifically, first support column 21 with second support column 22 is the columnar structure, first support column 21 with second support column 22 is dislocation set, splice bar 23 is the L style of calligraphy, the one end of splice bar 23 connect in all sides of first support column 21, the other end of splice bar 23 connect in all sides of second support column 22 are last, splice bar 23 is used for connecting first support column 21 with second support column 22, make support piece 20's structure fastening is integrative, in other embodiments, support piece 20 can also install through modes such as joint, bonding the bottom of accepting chamber 10a, the same reason, splice bar 23 also can be through modes such as joint, bonding with first support column 21 with second support column 22 fixed connection.

Further, referring to fig. 1 to 2, the first supporting column 21 has a first supporting surface 21a far away from the bottom 11 of the accommodating cavity, the second supporting column 22 has a second supporting surface 22a far away from the bottom 11 of the accommodating cavity, and the first supporting surface 21a is close to the bottom 11 of the accommodating cavity relative to the second supporting surface 22 a.

Specifically, the distance from the first supporting surface 21a to the bottom 11 of the receiving cavity is smaller than the distance from the second supporting surface 22a to the bottom 11 of the receiving cavity, it can be understood that in the present embodiment, the height of the first supporting column 21 is set to be smaller than the height of the second supporting column 22, the electronic component 60 further includes a first electronic component 61 and a second electronic component 62, and since the thickness of the first electronic component 61 is greater than the thickness of the second electronic component 62, the height of the first supporting column 21 is set to be smaller than the height of the second supporting column 22, so that the first electronic component 61 and the second electronic component 62 can be firmly abutted against the supporting member 20. Of course, in other embodiments, the heights of the first supporting column 21 and the second supporting column 22 may be adjusted correspondingly according to the actual thickness of the electronic component, the height of the first supporting column 21 may be set to be greater than the height of the second supporting column 22, and the first supporting column 21 and the second supporting column 22 may also be set to have a structure with equal height, which is not limited in this embodiment.

Further, referring to fig. 3, the connecting rib 23 has a first connecting portion 231 and a second connecting portion 232, the first connecting portion 231 is connected to the first supporting column 21, the second connecting portion 232 is connected to the second supporting column 22, the first connecting portion 231 has a first end surface 231a facing the heat dissipation block 30, the first end surface 231a is flush with the first supporting surface 21a, the second connecting portion 232 has a second end surface 232a facing the heat dissipation block 30, and the second end surface 232a is flush with the second supporting surface 22 a.

Specifically, first connecting portion 231 connect in on the week side of first support column 21, first connecting portion 231 is a style of calligraphy structure, second connecting portion 232 connect in on the week side of second support column 22, second connecting portion 232 is L type structure, first terminal surface 231a with first holding surface 21a horizontal connection, second terminal surface 232a with second holding surface 22a horizontal connection, it can be understood, first terminal surface 231a orientation the distance of accepting chamber bottom 11 is less than second terminal surface 232a orientation the distance of accepting chamber bottom 11. The first end surface 231a is connected to the first supporting surface 21a to form the first region S1, the first electronic element 61 is correspondingly disposed in the first region S1, the second end surface 232a is connected to the second supporting surface 22a to form the second region S2, and the second electronic element 62 is correspondingly disposed in the second region S2. Of course, in other embodiments, the height of the first connecting portion 231 may be greater than the height of the second connecting portion 232, that is, the distance from the first end surface 231a to the receiving cavity bottom 11 is greater than the distance from the second end surface 232a to the receiving cavity bottom 11. The first end surface 231a may be disposed flush with the second end surface 232a, and this embodiment is not particularly limited.

Further, referring to fig. 3, the connecting rib 23 further has a bent end surface 233a, and the bent end surface 233a connects the first end surface 231a and the second end surface 232 a.

Specifically, in this embodiment, because the distance from the first end surface 231a to the accommodating cavity bottom 11 is less than the distance from the second end surface 232a to the accommodating cavity bottom 11, the bent end surface 233a connects the first end surface 231a and the second end surface 232a in a transition manner, so that the surface of the connecting rib 23 facing away from the accommodating cavity bottom 11 has a flat plane, and the bent end surface 233a forms an included angle with a direction perpendicular to the first end surface 231a or the second end surface 232a, where the included angle is an acute angle.

Further, referring to fig. 4, the heat dissipation block 30 includes a first heat dissipation portion 31, a second heat dissipation portion 32, and a bending portion 33, the first heat dissipation portion 31, the second heat dissipation portion 32, and the bending portion 33 are integrally formed, the first heat dissipation portion 31 is attached to the first supporting surface 21a and the first end surface 231a, the second heat dissipation portion 32 is attached to the second supporting surface 22a and the second end surface 232a, and the bending portion 33 is attached to the bending end surface 233 a.

Specifically, the heat dissipation block 30 is a heat dissipation metal plate, the heat dissipation block 30 can be bent, the first heat dissipation portion 31 is of a rectangular structure, the first heat dissipation portion 31 is parallel to the area of the accommodating cavity bottom 11, which is larger than the area of the first end surface 231a and the first supporting surface 21a, so that the heat dissipation efficiency of the first heat dissipation portion 31 can be increased, the second heat dissipation portion 32 is of a rectangular structure, the second heat dissipation portion 32 is parallel to the area of the accommodating cavity bottom 11, which is larger than the area of the second end surface 232a and the second supporting surface 22a, so that the heat dissipation efficiency of the second heat dissipation portion 32 can be increased, and in addition, the first heat dissipation portion 31 and the second heat dissipation portion 32 are directly additionally provided with the bending portion 33, so that the contact surface between the heat dissipation block 30 and the supporting member 20 is increased, and the stability of the heat dissipation block 30 is improved.

Further, referring to fig. 1, the vehicle-mounted converter 100 further includes a first fastening member 41 and a first fastening member 42, the first support column 21 is provided with a first positioning hole 211, the second support column 22 is provided with a second positioning hole 221, the heat dissipation block 30 is provided with a first through hole 31a and a second through hole 32a, the first through hole 31a is disposed on the first heat dissipation portion 31, the second through hole 32a is disposed on the second heat dissipation portion 32, the first fastening member 41 passes through the first through hole 31a and is inserted into the first positioning hole 211, and the first fastening member 42 passes through the second through hole 32a and is inserted into the second positioning hole 221.

Specifically, the first positioning hole 211 and the second positioning hole 221 are both threaded holes, the first fastening piece 41 and the first fastening piece 42 are both screws, the first through hole 31a and the second through hole 32a are tapered through holes, the first through hole 31a and the first positioning hole 211 are coaxially arranged, the second through hole 32a and the second positioning hole 221 are coaxially arranged, the first fastening piece 41 is inserted into the first positioning hole 211 through the first through hole 31a, and the second fastening piece 42 is inserted into the second positioning hole 221 through the second through hole 32a, so that the heat dissipation block 30 is fixed on the support frame. Of course, in other embodiments, the heat dissipation block 30 may also be fixed on the support frame in a clamping manner or an adhesive manner, and this embodiment is not limited in particular.

Further, referring to fig. 3, the peripheral side surfaces of the first supporting column 21 and the second supporting column 22 are tapered surfaces, and the outer diameters of the tapered surfaces gradually decrease along a direction gradually approaching one end of the circuit board 70.

Specifically, first support column 21 with second support column 22 all is the round platform form, and it can be understood that first holding surface 21a keeps away from the external diameter of accepting chamber bottom 11 reduces gradually, second holding surface 22a keeps away from the external diameter of accepting chamber bottom 11 reduces gradually, because the round platform structure has better stability than the cylinder structure, in order to improve support piece 20 locates steadiness in casing 10 improves support piece 20's life. Of course, in other embodiments, the first supporting column 21 and the second supporting column 22 may also be cylindrical structures, and this embodiment is not limited in particular.

Further, the heat conducting member 50 is L-shaped, the heat conducting member 50 is attached to a surface of the heat dissipating block 30 facing the circuit board 70, the heat conducting member 50 is made of heat dissipating silica gel, and an area of the heat conducting member 50 is larger than an area of a surface of the heat dissipating block 30 facing the circuit board 70, so as to prevent the electronic component 60 from being worn due to direct contact with the heat dissipating block 30, and meanwhile, the heat conducting member 50 can also assist the electronic component 60 in dissipating heat.

Further, referring to fig. 2 to 4, a surface of the electronic component 60 abutting against the heat conducting element 50 is partially attached.

Specifically, the electronic component 60 includes a first electronic component 61 and a second electronic component 62, the first electronic component 61 abuts against the first heat sink 31, a portion of the first electronic component 61 and a portion of the first heat sink 31 facing the circuit board 70 are attached to each other, the second electronic component 62 abuts against the second heat sink 32, and a portion of the second electronic component 62 and a portion of the second heat sink 32 facing the circuit board 70 are attached to each other, so that the electronic component 60 reduces the processing materials of the supporting member 20 and improves the production efficiency on the premise of satisfying the supporting and heat dissipation requirements.

In this application, at first open in the casing 10 support piece 20, install simultaneously on support piece 20 radiating block 30 first support column 21 with set up first locating hole 211 on the second support column 22 respectively with second locating hole 221, through first fastener 41 with second fastener 42 will radiating block 30 installs on support piece 20, then radiating block 30 is in towards the one side subsides of circuit board 70 are established heat-conducting member 50, electronic component 60 welds on circuit board 70, will at last circuit board 70 flip cover the open end, in order to realize electronic component 60 butt in on radiating block 30. The heat dissipation efficiency of the electronic component 60 is provided by opening the supporting member 20 in the housing 10 and attaching the heat conducting member 50 and the heat dissipation block 30 to the supporting member 20 to assist the electronic component 60 in dissipating heat.

The embodiment of the present application further provides an automobile, which includes an on-vehicle converter 100, and the automobile may be a new energy automobile, a car, a truck, or the like. Wherein, the vehicle-mounted converter 100 provides the electric energy of the automobile to realize the normal operation of the automobile.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the protection scope of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a vehicle-mounted converter, its characterized in that, includes casing, circuit board, support piece, radiating block, heat-conducting piece and electronic component, the casing has accepts the chamber, it has the open end to accept the chamber, the circuit board closing cap the open end, support piece set up in accept the chamber bottom, the radiating block is fixed in support piece keeps away from the bottom one end of accepting the chamber, the heat-conducting piece pastes and locates the radiating block is kept away from support piece one end, electronic component's one side with heat-conducting piece butt, electronic component's another side with circuit board fixed connection.

2. The vehicle-mounted converter according to claim 1, wherein the supporting member comprises a first supporting column, a second supporting column, and a connecting rib provided between the first supporting column and the second supporting column, the first supporting column, the connecting rib, and the second supporting column are integrally formed, and the first supporting column and the second supporting column are arranged to extend along a direction of the heat dissipation block.

3. The vehicle-mounted converter according to claim 2, wherein the first support pillar has a first support surface away from the bottom of the housing cavity, and the second support pillar has a second support surface away from the bottom of the housing cavity, and the first support surface is adjacent to the bottom of the housing cavity relative to the second support surface.

4. The on-vehicle converter of claim 3, wherein the connecting rib has a first connecting portion and a second connecting portion, the first connecting portion is connected to the first support column, the second connecting portion is connected to the second support column, the first connecting portion has a first end surface facing the heat dissipation block, the first end surface is flush with the first support surface, the second connecting portion has a second end surface facing the heat dissipation block, and the second end surface is flush with the second support surface.

5. The vehicle-mounted converter according to claim 4, wherein the connecting rib further has a bent end surface connecting the first end surface and the second end surface.

6. The vehicle-mounted converter according to claim 5, wherein the heat dissipation block includes a first heat dissipation portion, a second heat dissipation portion, and a bent portion, the first heat dissipation portion, the second heat dissipation portion, and the bent portion are integrally formed, the first heat dissipation portion is attached to the first support surface and the first end surface, the second heat dissipation portion is attached to the second support surface and the second end surface, and the bent portion is attached to the bent end surface.

7. The vehicle-mounted converter according to claim 6, further comprising a first fastening member and a second fastening member, wherein the first supporting pillar is provided with a first positioning hole, the second supporting pillar is provided with a second positioning hole, the heat dissipating block is provided with a first through hole and a second through hole, the first through hole is provided on the first heat dissipating portion, the second through hole is provided on the second heat dissipating portion, the first fastening member is inserted into the first positioning hole through the first through hole, and the second fastening member is inserted into the second positioning hole through the second through hole.

8. The vehicle-mounted converter according to claim 2, wherein the peripheral side surfaces of the first support column and the second support column are tapered surfaces, and the outer diameters of the tapered surfaces are gradually reduced in a direction toward one end of the circuit board.

9. The vehicular converter according to claim 1, wherein a surface portion of the electronic component which abuts against the heat conductive member is bonded.

10. An automobile, characterized by comprising the on-board converter of any one of claims 1 to 9.

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