CN204190629U - Three-phase exports integral type copper bar - Google Patents
Three-phase exports integral type copper bar Download PDFInfo
- Publication number
- CN204190629U CN204190629U CN201420531733.3U CN201420531733U CN204190629U CN 204190629 U CN204190629 U CN 204190629U CN 201420531733 U CN201420531733 U CN 201420531733U CN 204190629 U CN204190629 U CN 204190629U
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- CN
- China
- Prior art keywords
- copper bar
- horizontal part
- phase
- pcb
- circuit board
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- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 118
- 239000010949 copper Substances 0.000 title claims abstract description 118
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 230000000994 depressogenic effect Effects 0.000 claims description 12
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
This application discloses a kind of three-phase and export integral type copper bar, comprising:---three-phase copper bar is three separate and copper bars of mutually insulated;---three radomes, each radome forms U-shaped by a horizontal part and two vertical portions;---three studs, press-fit the below of the high-order horizontal part one in three-phase copper bar;---three-phase copper bar, three radomes, three stud plastic packagings are integrated by injection structure; Injection structure forms four fixing holes raised up in the outside of three-phase copper bar;---three current sensor chips, are all mounted on printed circuit board (PCB);---printed circuit board (PCB), it has three pairs of strip holes, and its four angles have fixing hole; Fixed by screw between the fixing hole of printed circuit board (PCB) and the fixing hole of injection structure; Two vertical portions of each radome all pass from a pair strip hole of printed circuit board (PCB).The application's three-phase exports integral type copper bar and has that assembling is easy, compact, be beneficial to the advantages such as heat radiation.
Description
Technical field
The application relates to a kind of electronic power inverter, and the three-phase particularly related to wherein exports copper bar.
Background technology
New-energy automobile (hybrid vehicle, pure electric automobile etc.) has electronic power inverter, DC conversion for being exported by high-tension battery is three-phase alternating current, and by controlling the size of current of three-phase alternating current thus dragging motor power output required for obtaining.For controlling the output current of electronic power inverter, the output copper bar of its three-phase alternating current needing add current sensor and carrying out feedback regulation to detect size of current.
In existing electronic power inverter, output copper bar and current sensor are two separate parts, need to be assembled together use.This results in assembling inconvenience, assemble the larger shortcoming of rear volume.And be limited by the structure of current sensor, make to export copper bar and be difficult to dispel the heat.This just makes the current density of copper bar promote further, increases copper bar volume to be only had by big current.The output copper bar of electronic inverter connects motor by cable, contact resistance near copper bar and cable connection point is larger, heating is serious, and cause very large hot blast danger owing to lacking radiator structure, too high some electric component that may cause of such as temperature lost efficacy.
Utility model content
The three-phase that technical problems to be solved in this application are to provide a kind of electronic power inverter exports integral type copper bar, is wherein integrated with current sensor, and is convenient to dispel the heat.
For solving the problems of the technologies described above, the application's three-phase exports integral type copper bar and comprises:
---three-phase copper bar is three separate and copper bars of mutually insulated; Each copper bar formed by the high-order horizontal part one connected successively, vertically connecting portion one, low level horizontal part, vertically connecting portion two, high-order horizontal part two; High-order horizontal part one has fixing hole;
---three radomes, each radome forms U-shaped by a horizontal part and two vertical portions; Horizontal part is set in the below of the low level horizontal part of three-phase copper bar, and two vertical portions upward;
---three studs, press-fit the below of the high-order horizontal part one in three-phase copper bar, and the screwed hole of each stud all coincides with the fixing hole on the high-order horizontal part one of copper bar;
---three-phase copper bar, three radomes, three self-clinching standoff plastic packagings are integrated by injection structure, and the lower surface to the portion lower surface of the upper surface of the high-order horizontal part one of major general's three-phase copper bar, low level horizontal part, high-order horizontal plane two, stud comes out; Injection structure forms four fixing holes raised up in the outside of three-phase copper bar;
---three current sensor chips, are all mounted on printed circuit board (PCB);
---printed circuit board (PCB), it has three pairs of strip holes, and its four angles have fixing hole; Fixed by screw between the fixing hole of printed circuit board (PCB) and the fixing hole of injection structure; Two vertical portions of each radome all pass from a pair strip hole of printed circuit board (PCB), and three current sensor chips are all in the face of the low level horizontal part of three-phase copper bar.
Further, each current sensor chip, radome and printed circuit board (PCB) form a current sensor; This three-phase exports integral type copper bar and altogether has three current sensors.
Above-mentioned three-phase exports integral type copper bar and has the advantages such as assembling is easy, compact.
Further, described injection structure also forms a depressed part on the low level horizontal part of three-phase copper bar and between two vertical portions of each radome; Described depressed part is used for dodging current sensor chip.Newly-increased depressed part can make current sensor chip to try one's best three-phase copper bar, thus obtains testing result more accurately.
Further, each current sensor chip, radome and printed circuit board (PCB) form a current sensor; This three-phase exports integral type copper bar and altogether has three current sensors.The application enormously simplify the assembly process of three assemblies forming current sensor.
Further, the portion lower surface of low level horizontal part that comes out of described injection structure and/or the lower surface of stud are contacted with radiator structure by insulating heat-conductive pad.The application by being exposed to outside injection structure in region larger for caloric value, and contacts radiator structure with insulation mode, thus greatly improves cooling effect, and can obtain larger current density.
Accompanying drawing explanation
Fig. 1 is the structural representation of three-phase copper bar;
Fig. 2 is the structural representation of current sensor chip;
Fig. 3 is the structural representation of printed circuit board (PCB);
Fig. 4 is the structural representation of radome;
Fig. 5 is the structural representation of self-clinching standoff;
Fig. 6 is the mutual alignment schematic diagram of the metal parts comprised in injection structure;
Fig. 7 is the structural representation of injection structure;
Fig. 8 is the overall structure schematic diagram that the application's three-phase exports integral type copper bar;
Fig. 9 is the front view that the application's three-phase exports integral type copper bar;
Figure 10 is the rear view that the application's three-phase exports integral type copper bar.
Description of reference numerals in figure:
10a is u phase copper bar; 10b is v phase copper bar; 10c is w phase copper bar; 11 is high-order horizontal part one; 110 is the fixing hole on copper bar; 12 is vertical portion one; 13,13a, 13b, 13c are low level horizontal part; 14 is vertical portion two; 15 is high-order horizontal part two; 20 is chip; 30 is printed circuit board (PCB); 31a, 31b, 31c are a pair strip hole; 32 is the fixing hole on printed circuit board (PCB); 33 is Signal transmissions connector; 40 is radome; 50 is stud; 100 is injection structure; 101 is the fixing hole on injection structure; 102 is depressed part.
Embodiment
The three-phase of the application exports integral type copper bar and formed primarily of three-phase copper bar, chip, printed circuit board (PCB), radome, stud, injection structure.
Refer to Fig. 1, this is three-phase copper bar 10a, 10b, 10c, exports u, v, w three-phase alternating current respectively for electronic power inverter.Every root copper bar is all made up of five parts, and they are the high-order horizontal part 1 connected successively, vertical connecting portion 1, low level horizontal part 13, vertically connecting portion 2 14, high-order horizontal part 2 15.Wherein high-order horizontal part 1 and high-order horizontal part 2 15 are roughly on a horizontal plane, and different from the horizontal plane at low level horizontal part 13 place.High-order horizontal part 1 has fixing hole 110.Three-phase copper bar 10a, 10b, 10c only have the shape of low level horizontal part 13 different, and the shape of remainder is all identical.The low level horizontal part 13b of v phase copper bar 10b is the elongate configuration of " one " font.The low level horizontal part 13c of low level horizontal part 13a, w phase copper bar 10c of u phase copper bar 10a is the elongate configuration of a bending, and overbending direction is contrary.Usually u phase copper bar 10a and w phase copper bar 10c is placed on respectively the both sides of v phase copper bar 10b, and makes the low level horizontal part 13c of the low level horizontal part 13a of u phase copper bar 10a and w phase copper bar 10c all deviate from v phase copper bar 10b and bend.
Refer to Fig. 2, this is chip 20, is collection magnetic sheet current sensor chip.
Refer to Fig. 3, this is printed circuit board (PCB) 30, overall rectangular.There are three couples of strip holes 31a, 31b, 31c on the printed wiring board 30, be respectively used to installation three radomes 40.Four angles of printed circuit board (PCB) 30 respectively has fixing hole 32.On the printed wiring board 30 also there is Signal transmissions connector 33.
Refer to Fig. 4, this is radome 40, is the radome of current sensor chip 20.The cross section of radome 40 takes the shape of the letter U, and is made up of the horizontal part of centre and the vertical portion of both sides.Two vertical portions of each radome are just inserted in a pair strip hole of printed circuit board (PCB) 30.
Refer to Fig. 5, this is stud 50, and overall in positive six prisms, centre has screwed hole.Preferably, stud 50 is self-clinching standoff.
Refer to Fig. 6, this is the mutual alignment schematic diagram of the metal parts comprised in injection structure.The radome 40 of three U-shapeds is placed in the below of the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c respectively, and two vertical portions of each radome 40 upward.Three studs 50 are placed in the below of the high-order horizontal part 1 of three-phase copper bar 10a, 10b, 10c respectively, and the position of the screwed hole of stud 50 and the fixing hole 110 of high-order horizontal part 1 coincides.If stud 50 is self-clinching standoff, together with so each self-clinching standoff 50 is also fitted in the high-order horizontal part 1 of each copper bar, form interference fit.
Refer to Fig. 7, adopt insulating material entirety to wrap up the three-phase copper bar 10a of relative position relation shown in Fig. 6,10b, 10c, three radomes, 40, three studs 50, just define injection structure 100.See also Fig. 6, if the side that the high-order horizontal part 1 of three-phase copper bar 10a, 10b, 10c does not contact with stud 50 is called upper surface, the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c is not called upper surface with the side of the horizontal part homonymy of radome 40, the side that stud 50 contacts with the high-order horizontal part 1 of three-phase copper bar 10a, 10b, 10c is called upper surface; So the lower surface of the portion lower surface of the upper surface of the high-order horizontal part 1 of injection structure 100 to major general three-phase copper bar 10a, 10b, 10c, low level horizontal part 13, high-order horizontal plane 2 15, stud 50 comes out.Originally loose three-phase copper bar 10a, 10b, 10c, three radomes, 40, three studs 50 are combined as a whole by injection structure 100, and form four fixing holes raised up 101 in the outside of the outside of u phase copper bar 10a and w phase copper bar 10c, the rectangle that these four fixing holes 101 are formed includes three radomes 40, and the position of these four fixing holes 101 is corresponding to the position of four fixing holes 32 of printed circuit board (PCB) 30.
Preferably, injection structure 100 also forms a depressed part 102 on the upper surface of the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c and between two vertical portions of each radome 40.Depressed part 102 can expose the low level horizontal part 13 of copper bar, also can not expose.Depressed part 102 for dodging chip 20, and allows chip 20 as far as possible close to the low level horizontal part 13 of copper bar.If do not arrange depressed part 102, so also can play by the height of adjustment fixing hole 101 effect dodging chip 20, but the distance between the low level horizontal part 13 of now chip 20 and copper bar is comparatively large, the effect therefore detecting electric current is poor.Usually make chip 20 more better close to copper bar effect.
Refer to Fig. 8, adopt SMT (surface mounting technology) that three chips 20 are mounted printed circuit board (PCB) 30 and form electricity and connect, screw etc. is adopted to be fixed by between four fixing holes 101 of the injection structure 100 shown in four of printed circuit board (PCB) 30 fixing holes 32 and Fig. 7 again, and make three chips 20 in the face of the upper surface of the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c, and the vertical portion of three radomes 40 is passed respectively from three of printed circuit board (PCB) 30 couples of strip holes 31a, 31b, 31c, now just define complete three-phase and export integral type copper bar.The degree of depth of the height that the fixing hole 101 on injection structure 100 raises up and depressed part 102 determines the distance between current sensor chip 20 and copper bar jointly.The signal that chip 20 gathers by printed circuit board (PCB) 30 passes to the controller of motor by Signal transmissions connector 33.
Complex chart 1 to Fig. 8 is known, and the application's three-phase exports integral type copper bar and comprises:
---three-phase copper bar 10a, 10b, 10c, this is three separate and copper bars of mutually insulated.Each copper bar formed by the high-order horizontal part 1 connected successively, vertically connecting portion 1, low level horizontal part 13, vertically connecting portion 2 14, high-order horizontal part 2 15.High-order horizontal part 1 has fixing hole 110.
---three radomes 40, form U-shaped by a horizontal part and two vertical portions, horizontal part is set in the below of the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c respectively, and two vertical portions are upward.
---three studs 50, lay respectively at the below of the high-order horizontal part 1 of three-phase copper bar 10a, 10b, 10c.
---injection structure 100, three-phase copper bar 10a, 10b, 10c, three radomes, 40, three stud 50 plastic packagings are integrated, the lower surface to the portion lower surface of the upper surface of the high-order horizontal part 1 of major general's three-phase copper bar 10a, 10b, 10c, low level horizontal part 13, high-order horizontal plane 2 15, stud 50 comes out.Injection structure 100 forms four fixing holes raised up 101 in the outside of three-phase copper bar 10a, 10b, 10c, and on low level horizontal part 13 upper surface of three-phase copper bar 10a, 10b, 10c and between two vertical portions of each radome 40, forms a depressed part 102 alternatively.
---three current sensor chips 20, are all mounted on printed circuit board (PCB) 30.
---printed circuit board (PCB) 30, it has three couples of strip holes 31a, 31b, 31c, and its four angles have fixing hole 32.Fixed by screw between the fixing hole 32 of printed circuit board (PCB) 30 and the fixing hole 101 of injection structure 100.Two vertical portions of each radome 40 all pass from a pair strip hole of printed circuit board (PCB) 30.Three chips are all in the face of the upper surface of the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c.
Each current sensor chip 20, radome 40 and printed circuit board (PCB) 30 form a current sensor.This three-phase exports integral type copper bar and altogether has three current sensors.
Refer to Fig. 9, this is the front view that the application's three-phase exports integral type copper bar.Wherein the upper surface of the high-order horizontal part 1 of three-phase copper bar 10a, 10b, 10c is used for the mode such as screw or welding stube cable, and described cable is for connecting motor.And the high-order horizontal part 2 15 of three-phase copper bar 10a, 10b, 10c is for connecting IGBT constant power switching device in the mode such as screw or welding, described device for power switching is arranged in the control circuit of electronic power inverter.
Refer to Figure 10, this is the rear view that the application's three-phase exports integral type copper bar.The portion lower surface of the lower surface of three studs 50, the low level horizontal part 13 of three-phase copper bar 10a, 10b, 10c all for being contacted with air-cooled and/or water-cooling radiating structure by insulating heat-conductive pad etc., thus reduces the temperature rise of copper bar and cable junction.
Compared with the output copper bar of existing electronic power inverter, the application's three-phase exports integral type copper bar and has following features:
One, enormously simplify the assembling between three-phase copper bar 10a, 10b, 10c and current sensor.Current sensor is made up of chip 20, printed circuit board (PCB) 30, radome 40.Wherein radome 40 and three-phase copper bar 10 are connected as a single entity by injection moulding, chip 20 mounts on printed circuit board (PCB) 30, what actual needs assembled is only between printed circuit board (PCB) 30 and injection structure 100, and this can position conveniently by fixing hole and strip hole and fix.
Its two, by injection structure 100, three-phase copper bar 10a, 10b, 10c, radome 40, stud 50 plastic packaging are integrated, decrease volume.
They are three years old, make stud 50, three-phase copper bar 10a, 10b, 10c be exposed to outside injection structure 100, be convenient to laminating radiator structure and reduce temperature rise, optimize the heat radiation of three-phase copper bar and cable junction on the one hand, reduce the hot blast danger of causing because contact resistance is excessive, be conducive to the heat radiation of current sensor on the other hand.Because heat radiation is strengthened, the current density of the copper bar of unit volume is got a promotion, and under namely identical current density, the application can use the copper bar of more small size.
These are only the preferred embodiment of the application, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in the application.
Claims (4)
1. three-phase exports an integral type copper bar, it is characterized in that, comprising:
---three-phase copper bar is three separate and copper bars of mutually insulated; Each copper bar formed by the high-order horizontal part one connected successively, vertically connecting portion one, low level horizontal part, vertically connecting portion two, high-order horizontal part two; High-order horizontal part one has fixing hole;
---three radomes, each radome forms U-shaped by a horizontal part and two vertical portions; Horizontal part is set in the below of the low level horizontal part of three-phase copper bar, and two vertical portions upward;
---three studs, press-fit the below of the high-order horizontal part one in three-phase copper bar, and the screwed hole of each self-clinching standoff all coincides with the fixing hole on the high-order horizontal part one of copper bar;
---three-phase copper bar, three radomes, three stud plastic packagings are integrated by injection structure, and the lower surface to the portion lower surface of the upper surface of the high-order horizontal part one of major general's three-phase copper bar, low level horizontal part, high-order horizontal plane two, stud comes out; Injection structure forms four fixing holes raised up in the outside of three-phase copper bar;
---three current sensor chips, are all mounted on printed circuit board (PCB);
---printed circuit board (PCB), it has three pairs of strip holes, and its four angles have fixing hole; Fixed by screw between the fixing hole of printed circuit board (PCB) and the fixing hole of injection structure; Two vertical portions of each radome all pass from a pair strip hole of printed circuit board (PCB), and three current sensor chips are all in the face of the low level horizontal part of three-phase copper bar.
2. three-phase according to claim 1 exports integral type copper bar, it is characterized in that, described injection structure also forms a depressed part on the low level horizontal part of three-phase copper bar and between two vertical portions of each radome; Described depressed part is used for dodging current sensor chip.
3. three-phase according to claim 1 exports integral type copper bar, and it is characterized in that, each current sensor chip, radome and printed circuit board (PCB) form a current sensor; This three-phase exports integral type copper bar and altogether has three current sensors.
4. three-phase according to claim 1 exports integral type copper bar, and it is characterized in that, the portion lower surface of low level horizontal part that described injection structure comes out and/or the lower surface of stud are contacted with radiator structure by insulating heat-conductive pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531733.3U CN204190629U (en) | 2014-09-16 | 2014-09-16 | Three-phase exports integral type copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531733.3U CN204190629U (en) | 2014-09-16 | 2014-09-16 | Three-phase exports integral type copper bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190629U true CN204190629U (en) | 2015-03-04 |
Family
ID=52622598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531733.3U Expired - Lifetime CN204190629U (en) | 2014-09-16 | 2014-09-16 | Three-phase exports integral type copper bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190629U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161888A (en) * | 2015-10-13 | 2015-12-16 | 深圳威迈斯电源有限公司 | Low-cost large-power high-protection-level power supply module terminal |
| CN107946850A (en) * | 2017-11-12 | 2018-04-20 | 李正义 | A kind of new current-carrying load plate |
| CN110707449A (en) * | 2019-10-08 | 2020-01-17 | 联合汽车电子有限公司 | Three-phase copper bar and electric drive assembly |
| CN111769728A (en) * | 2020-07-28 | 2020-10-13 | 威迪斯电机技术(芜湖)有限公司 | Highly integrated motor control system |
| CN111811558A (en) * | 2019-04-11 | 2020-10-23 | Zf 腓德烈斯哈芬股份公司 | Sensor device, base part and conductive track-sensor assembly |
| CN112578174A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪半导体股份有限公司 | Current sensor |
| CN113607987A (en) * | 2021-07-30 | 2021-11-05 | 重庆长安汽车股份有限公司 | Current sensor structure |
| CN114002619A (en) * | 2021-12-02 | 2022-02-01 | 国网上海市电力公司 | Surface-mounted current sensing device for measuring high-voltage cable grounding current and use method |
-
2014
- 2014-09-16 CN CN201420531733.3U patent/CN204190629U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161888A (en) * | 2015-10-13 | 2015-12-16 | 深圳威迈斯电源有限公司 | Low-cost large-power high-protection-level power supply module terminal |
| CN107946850A (en) * | 2017-11-12 | 2018-04-20 | 李正义 | A kind of new current-carrying load plate |
| CN111811558A (en) * | 2019-04-11 | 2020-10-23 | Zf 腓德烈斯哈芬股份公司 | Sensor device, base part and conductive track-sensor assembly |
| CN112578174A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪半导体股份有限公司 | Current sensor |
| CN110707449A (en) * | 2019-10-08 | 2020-01-17 | 联合汽车电子有限公司 | Three-phase copper bar and electric drive assembly |
| CN111769728A (en) * | 2020-07-28 | 2020-10-13 | 威迪斯电机技术(芜湖)有限公司 | Highly integrated motor control system |
| CN113607987A (en) * | 2021-07-30 | 2021-11-05 | 重庆长安汽车股份有限公司 | Current sensor structure |
| CN114002619A (en) * | 2021-12-02 | 2022-02-01 | 国网上海市电力公司 | Surface-mounted current sensing device for measuring high-voltage cable grounding current and use method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150304 |