CN210629339U - Air conditioner driver of electric automobile - Google Patents
Air conditioner driver of electric automobile Download PDFInfo
- Publication number
- CN210629339U CN210629339U CN201921727667.6U CN201921727667U CN210629339U CN 210629339 U CN210629339 U CN 210629339U CN 201921727667 U CN201921727667 U CN 201921727667U CN 210629339 U CN210629339 U CN 210629339U
- Authority
- CN
- China
- Prior art keywords
- driving circuit
- circuit board
- hole
- air conditioner
- aluminum substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 230000017525 heat dissipation Effects 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The embodiment of the utility model provides an electric automobile air conditioner driver, including shell, drive circuit board and a plurality of power switch tube, and drive circuit has on the drive circuit board, a plurality of power switch tube all weld the upper surface at an aluminium base board, and each pin of each power switch tube respectively towards the vertical bending in top of aluminium base board; the shell is internally provided with a positioning component, the aluminum substrate is assembled in the shell through the positioning component, the driving circuit board is fixed above the aluminum substrate in a mode of being parallel to the aluminum substrate, and each pin of each power switch tube is respectively welded and fixed to the driving circuit board and is in conductive connection with the driving circuit. The embodiment of the utility model provides a can guarantee a plurality of power switch tube's fixed position, be convenient for peg graft driving circuit board simultaneously with all pins of all power switch tubes, greatly made things convenient for electric automobile air conditioner driver's assembly.
Description
Technical Field
The embodiment of the utility model provides a relate to the driver field, more specifically say, relate to an electric automobile air conditioner driver.
Background
Inside the air conditioner driver of the electric vehicle, a plurality of IGBT (Insulated Gate Bipolar Transistor) single tubes are fixed in a single dispersed manner. Specifically, a plurality of IGBT monotubes may be separately fixed using screws or a bead. The three-phase output terminal (i.e., the U, V, W terminal) is soldered to a PCB (printed circuit Board) by a manual soldering method. The high-voltage direct-current input cable is welded to the direct-current input end in a complete machine manual welding mode.
In the air conditioner driver of the electric automobile, the plurality of IGBT single tubes are fixed separately, and the fixed positions of the IGBT single tubes are very easy to deviate, so that pins of the plurality of IGBT single tubes are difficult to be aligned with welding holes in a PCB accurately at the same time, and a large amount of time is usually spent during assembly. In addition, the number of screws used for fixing the IGBT single tube is large, so that the IGBT single tube is inconvenient to disassemble and difficult to maintain.
And because three-phase output terminal direct welding leads to three-phase output terminal not quick detachable on the PCB, is difficult to maintain. In addition, because the welding mode is adopted when the high-voltage direct-current input cable is assembled, the operation space is narrow, the threading is difficult, and the maintenance is difficult.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an to in the above-mentioned electric automobile air conditioner driver because of each IGBT single tube separately fixed array foot is difficult to quick cartridge to PCB's welding hole, welds PCB's three-phase output terminal not quick detachable, maintenance to and the problem of direct current input cable welding operation difficulty, provide an electric automobile air conditioner driver.
The technical solution of the present invention is to provide an air conditioner driver for an electric vehicle, which includes a housing, a driving circuit board, and a plurality of power switch tubes, wherein the driving circuit board has a driving circuit thereon, the power switch tubes are all welded on the upper surface of an aluminum substrate, and each pin of each power switch tube is vertically bent toward the upper side of the aluminum substrate; the shell is internally provided with a positioning component, the aluminum substrate is assembled in the shell through the positioning component, the driving circuit board is fixed above the aluminum substrate in a mode of being parallel to the aluminum substrate, and each pin of each power switch tube is respectively welded and fixed to the driving circuit board and is in conductive connection with the driving circuit.
Preferably, the air conditioner driver of the electric automobile comprises an alternating current output terminal and an alternating current output interface, wherein the alternating current output interface is fixed on the shell below the aluminum substrate, the alternating current output terminal is assembled on the upper surface of the aluminum substrate, and a terminal pin of the alternating current output interface is connected to the alternating current output terminal; and the wiring copper bar of the alternating current output terminal is in conductive connection with the driving circuit of the driving circuit board.
Preferably, a heat dissipation connecting surface is arranged on the bottom plate of the housing, and the lower surface of the aluminum substrate is attached to the heat dissipation connecting surface.
Preferably, the positioning member includes at least one first positioning pin and at least one second positioning pin located on the heat dissipation connection surface, the aluminum substrate has at least one first positioning hole and at least one second positioning hole, and the ac output terminal has at least one third positioning hole; when the aluminum substrate is fixed to the shell, the first positioning pin is inserted into the first positioning hole, and the second positioning pin is sequentially inserted into the second positioning hole and the third positioning hole.
Preferably, the heat dissipation connecting surface includes a first edge and a second edge which are opposite to each other, a first positioning pin is disposed inside the first edge, and two second positioning pins are disposed inside the second edge.
Preferably, the top surface of the alternating current output terminal is provided with a plurality of wiring copper bars, and each wiring copper bar is provided with a first threaded hole; the driving circuit board is provided with a plurality of first through hole pads which are respectively in conductive connection with the driving circuit, the driving circuit board is respectively in conductive connection with a plurality of wiring copper bars of the alternating current output terminal through a plurality of first screws, and each first screw penetrates one first through hole pad from the upper part of the driving circuit board and is in threaded connection with one first threaded hole of the wiring copper bar.
Preferably, a second threaded hole is formed in the inner side of the first edge of the heat dissipation connecting surface, and two third threaded holes are formed in the inner side of the second edge of the heat dissipation connecting surface; a first fixing hole is formed in the position, corresponding to the second threaded hole, of the aluminum substrate, and a second fixing hole is formed in the position, corresponding to the third threaded hole, of the aluminum substrate; two ends of the alternating current output terminal are respectively provided with a lug, and each lug is provided with a third fixing hole corresponding to one second fixing hole;
the alternating current output terminal and the aluminum substrate are fixed on the heat dissipation connecting surface through a second screw and a third screw, the second screw penetrates through a first fixing hole and is in threaded connection with the second threaded hole, and each third screw penetrates through a third fixing hole and a second fixing hole in sequence and then is in threaded connection with one third threaded hole; the driving circuit board is provided with an operation hole for dismounting the second screw and the third screw.
Preferably, the driving circuit board is provided with a second through hole pad conductively connected with the driving circuit and OT wiring terminals for connecting a direct current input cable, and each OT wiring terminal is fixed to the second through hole pad by a fourth screw.
Preferably, a plurality of nut posts are disposed on a bottom plate of the housing, and the driving circuit board is fixed to the nut posts by a plurality of fifth screws.
The utility model discloses electric automobile air conditioner driver has following beneficial effect: through welding a plurality of power switch tubes to aluminium base board to realize the assembly when a plurality of power switch tubes under the locating component cooperation in the shell, can guarantee the fixed position of each power switch tube, be convenient for peg graft driving circuit board simultaneously with all pins of all power switch tubes, greatly made things convenient for electric automobile air conditioner driver's assembly. And, the embodiment of the utility model provides a still will exchange output terminal through the screw and fix aluminium base board, made things convenient for the maintenance to exchanging output terminal. Furthermore, the embodiment of the utility model provides a through OT wiring formula terminal and screw, made things convenient for the assembly operation of high voltage direct current input cable greatly.
Drawings
Fig. 1 is a schematic view of an air conditioner driver of an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an aluminum substrate and a power switch tube in an air conditioner driver of an electric vehicle according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a three-phase output terminal mounted on an aluminum substrate in an air conditioner driver of an electric vehicle according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a driving circuit board in an air conditioner driver of an electric vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in FIGS. 1-4, be the embodiment of the utility model provides an electric automobile air conditioner driver's schematic diagram, this electric automobile air conditioner driver can be applied to new energy automobile to the direct current drive air conditioner that provides through the battery moves. The air conditioner driver of the electric vehicle in the embodiment includes a housing 11, a driving circuit board 12, and a plurality of power switching tubes 10, where the power switching tubes 10 may specifically be IGBT single tubes, and certainly, in a specific application, the power switching tubes 10 may also be MOSFETs (Metal-Oxide-Semiconductor Field-Effect transistors ), and the like. The housing 11 may be formed by die-casting a metal material, and the housing 11 includes a bottom plate, a side plate, and a mounting cavity enclosed by the bottom plate and the side plate. The driving circuit board 12 may include a PCB, and the driving circuit board 12 has a driving circuit thereon, a plurality of power switch tubes 10 are all welded on an upper surface of an aluminum substrate 13, and each pin 101 of each power switch tube 10 is vertically bent toward an upper side of the aluminum substrate 13, i.e. the bent pin 101 is perpendicular to the upper surface of the aluminum substrate 13.
The housing 11 has a positioning member therein, the aluminum substrate 13 is assembled into the housing 11 through the positioning member, the driving circuit board 12 is fixed above the aluminum substrate 13 in a manner parallel to the aluminum substrate 13, and each pin 101 of each power switch tube 10 is respectively welded and fixed to the driving circuit board 12 and is electrically connected with the driving circuit on the driving circuit board 12 to convert the direct current into the alternating current.
According to the air conditioner driver of the electric automobile, the power switch tubes 10 are welded to the aluminum substrate 13, and the power switch tubes 10 are simultaneously assembled under the matching of the positioning members in the shell 11, so that the fixing positions of the power switch tubes 10 can be ensured, all pins 101 of all the power switch tubes 10 (for example, when six power switch tubes 10 are welded on the aluminum substrate 13, eighteen pins 101 are totally inserted into the welding holes of the driving circuit board 12) can be conveniently and simultaneously inserted, and the air conditioner driver of the electric automobile is greatly convenient to assemble. And because the power switch tube 10 is fixed to the aluminum substrate 13 in a welding mode, the power switch tube 10 is beneficial to conducting heat generated during working to the aluminum substrate 13, and the fixing by using screws and pressing strips is not needed, so that the assembly process is saved, and the assembly efficiency is further improved.
The air conditioner driver of the electric automobile further comprises an alternating current output terminal 14 and an alternating current output interface 16, wherein the alternating current output interface 16 is fixed on the shell 11 below the aluminum substrate 13, the alternating current output terminal 14 is assembled on the upper surface of the aluminum substrate 13, and a pin 161 of the alternating current output terminal 16 is plugged into the alternating current output terminal 14. The connecting copper bar 141 of the ac output terminal 14 is electrically connected to the driving circuit on the driving circuit board 12, so that the ac power generated by the driving circuit and the power switch tube 10 can be output (for example, to the compressor) through the ac output interface 16. In the above structure, the ac output terminal 14 is no longer soldered to the driving circuit board 12, and since the ac output interface 16 is mated with the ac output terminal 14 in a plug-in manner, maintenance of the ac output terminal 14 is greatly facilitated.
In order to facilitate heat dissipation of the power switch tube 10, a heat dissipation connection surface 111 is disposed on a bottom plate (a surface of the bottom plate located in the mounting cavity) of the housing 11, and a lower surface of the aluminum substrate 13 is attached to the heat dissipation connection surface 111. In this way, the heat generated by the power switch 10 during operation can be quickly conducted to the housing 11 through the aluminum substrate 13, so that the heat can be quickly dissipated through the housing 11 (due to the large surface area of the housing 11). Of course, heat dissipation teeth and the like may be provided on the housing 11 as necessary, thereby further improving heat dissipation efficiency.
In an embodiment of the present invention, the positioning member on the housing 11 includes at least one first positioning pin and at least one second positioning pin 112 located on the heat dissipation connecting surface 111, the aluminum substrate 13 has at least one first positioning hole 131 and at least one second positioning hole 132, and the bottom of the ac output terminal 14 has at least one third positioning hole; when the aluminum substrate 13 is assembled to the case 11, the first positioning pin is inserted into the first positioning hole 131, and the second positioning pin 112 is inserted into the second positioning hole 132 and the third positioning hole in this order. With the above configuration, not only the mounting and positioning of the aluminum substrate 13 but also the mounting and positioning of the ac output terminals 14 can be realized at the same time. That is, it is not necessary to separately provide positioning pins for the ac output terminals 14, and thus positioning pins are saved.
Specifically, the heat dissipation connecting surface 111 includes a first side and a second side opposite to each other, and a first positioning pin is disposed inside the first side, and two second positioning pins 112 are disposed inside the second side. Namely, only three positioning pins (three positioning pins are distributed in a triangular shape) are needed to realize the installation and positioning of the aluminum substrate 13 and the alternating current output terminal, namely, the installation and positioning of six power switch tubes 10 are realized, and the positioning members are greatly saved.
In another embodiment of the present invention, the ac output terminal 14 can be electrically connected to the driving circuit on the driving circuit board 12 through the following structure: a plurality of wiring copper bars 141 are arranged on the top surface of the alternating current output terminal 14 (for example, when three-phase alternating current is output, three wiring copper bars 141 are arranged on the top surface of the alternating current output terminal 14), and each wiring copper bar 141 is provided with a first threaded hole 1411; the driving circuit board 12 has a plurality of first through hole pads electrically connected to the driving circuit, and the driving circuit board 12 is electrically connected to the plurality of wiring copper bars 141 of the ac output terminal 14 via a plurality of first screws 18, each first screw 18 passing through one first through hole pad from above the driving circuit board 12 and being screwed into the first threaded hole 1411 of one wiring copper bar 141. The above structure greatly facilitates the disassembly and assembly of the ac output terminal 14 and the driving circuit board 12. Of course, the ac output terminal 14 may be connected to the driving circuit board 12 by other structures in practical applications.
In another embodiment of the present invention, the aluminum substrate 13 and the ac output terminal 14 can be fixed by: a second threaded hole 113 is arranged on the inner side of the first side of the heat dissipation connecting surface 111, and two third threaded holes 114 are arranged on the inner side of the second side of the heat dissipation connecting surface 111; correspondingly, the aluminum substrate 13 has first fixing holes 133 at positions corresponding to the second threaded holes 113, and the aluminum substrate 13 has second fixing holes 134 at positions corresponding to the two third threaded holes 114, respectively; the two ends of the ac output terminal 14 are respectively provided with a lug 142, and each lug 142 is provided with a third fixing hole 1421 corresponding to one second fixing hole 134; the ac output terminal 14 and the aluminum substrate 13 are fixed to the heat dissipating connecting surface 111 by second screws and third screws 17, the second screws pass through a first fixing hole 133 and are screwed into the second screw holes 113, and each third screw 17 passes through a third fixing hole 1421 and a second fixing hole 134 in turn and is screwed into a third screw hole 114. In order to facilitate the operation of attaching and detaching the second and third screws 17, the driving circuit board 12 has operation holes 121 and 122 for attaching and detaching the second and third screws 17.
To facilitate the connection of the dc input cable, the driving circuit board 12 may be provided with a second through hole pad electrically connected to the driving circuit and OT-type terminals 15 for connecting the dc input cable, and each OT-type terminal 15 is fixed to the second through hole pad by a fourth screw 19, thereby connecting the dc input cable to the driving circuit. Through the structure, manual welding operation of the direct current input cable is avoided, the assembly process is further simplified, and maintainability is enhanced.
Further, the drive circuit board 12 may be fixedly mounted in the following manner: a plurality of nut posts are provided on a bottom plate (inner side surface of the bottom plate) of the housing 11, and a plurality of fourth fixing holes 123 are provided at an edge of the driving circuit board 12, the driving circuit board 12 is fixed to the nut posts of the bottom plate by a plurality of fifth screws, each of which is screwed to one of the nut posts after passing through one of the fourth fixing holes, thereby ensuring stability of the driving circuit board 12.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An air conditioner driver of an electric automobile comprises a shell, a driving circuit board and a plurality of power switch tubes, wherein the driving circuit board is provided with the driving circuit; the shell is internally provided with a positioning component, the aluminum substrate is assembled in the shell through the positioning component, the driving circuit board is fixed above the aluminum substrate in a mode of being parallel to the aluminum substrate, and each pin of each power switch tube is respectively welded and fixed to the driving circuit board and is in conductive connection with the driving circuit.
2. The air conditioner driver of an electric vehicle as claimed in claim 1, wherein the air conditioner driver of an electric vehicle comprises an alternating current output terminal and an alternating current output interface, the alternating current output interface is fixed on the shell below the aluminum base plate, the alternating current output terminal is assembled on the upper surface of the aluminum base plate, and a terminal pin of the alternating current output interface is connected to the alternating current output terminal; and the wiring copper bar of the alternating current output terminal is in conductive connection with the driving circuit of the driving circuit board.
3. The air conditioner driver of an electric automobile as claimed in claim 2, wherein the bottom plate of the housing has a heat dissipating connection surface, and the lower surface of the aluminum substrate is attached to the heat dissipating connection surface.
4. The air conditioner driver of an electric vehicle as claimed in claim 3, wherein the positioning member comprises at least one first positioning pin and at least one second positioning pin on the heat dissipation connecting surface, the aluminum substrate has at least one first positioning hole and at least one second positioning hole thereon, and the ac output terminal has at least one third positioning hole thereon; when the aluminum substrate is fixed to the shell, the first positioning pin is inserted into the first positioning hole, and the second positioning pin is sequentially inserted into the second positioning hole and the third positioning hole.
5. The air conditioner driver of an electric automobile as claimed in claim 4, wherein the heat dissipation connecting surface comprises a first side and a second side which are opposite to each other, and a first positioning pin is arranged on the inner side of the first side and two second positioning pins are arranged on the inner side of the second side.
6. The air conditioner driver of an electric automobile as claimed in claim 2, wherein the top surface of the ac output terminal has a plurality of copper wiring bars, and each copper wiring bar has a first threaded hole thereon; the driving circuit board is provided with a plurality of first through hole pads which are respectively in conductive connection with the driving circuit, the driving circuit board is respectively in conductive connection with a plurality of wiring copper bars of the alternating current output terminal through a plurality of first screws, and each first screw penetrates one first through hole pad from the upper part of the driving circuit board and is in threaded connection with one first threaded hole of the wiring copper bar.
7. The air conditioner driver of an electric automobile as claimed in claim 5, wherein the inside of the first edge of the heat dissipation connecting surface is provided with a second threaded hole, and the inside of the second edge of the heat dissipation connecting surface is provided with two third threaded holes; a first fixing hole is formed in the position, corresponding to the second threaded hole, of the aluminum substrate, and a second fixing hole is formed in the position, corresponding to the third threaded hole, of the aluminum substrate; two ends of the alternating current output terminal are respectively provided with a lug, and each lug is provided with a third fixing hole corresponding to one second fixing hole;
the alternating current output terminal and the aluminum substrate are fixed on the heat dissipation connecting surface through a second screw and a third screw, the second screw penetrates through a first fixing hole and is in threaded connection with the second threaded hole, and each third screw penetrates through a third fixing hole and a second fixing hole in sequence and then is in threaded connection with one third threaded hole; the driving circuit board is provided with an operation hole for dismounting the second screw and the third screw.
8. The air conditioner driver of an electric vehicle as claimed in claim 1, wherein the driving circuit board is provided with a second through hole pad conductively connected with the driving circuit and OT-type terminals for connecting a dc input cable, and each of the OT-type terminals is fixed to the second through hole pad by a fourth screw.
9. The air conditioner driver of an electric vehicle as claimed in claim 1, wherein a plurality of nut posts are provided on a bottom plate of the housing, and the driving circuit board is fixed to the nut posts by a plurality of fifth screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921727667.6U CN210629339U (en) | 2019-10-15 | 2019-10-15 | Air conditioner driver of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921727667.6U CN210629339U (en) | 2019-10-15 | 2019-10-15 | Air conditioner driver of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629339U true CN210629339U (en) | 2020-05-26 |
Family
ID=70757742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921727667.6U Withdrawn - After Issue CN210629339U (en) | 2019-10-15 | 2019-10-15 | Air conditioner driver of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210629339U (en) |
-
2019
- 2019-10-15 CN CN201921727667.6U patent/CN210629339U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200526 Effective date of abandoning: 20231225 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200526 Effective date of abandoning: 20231225 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |