CN210042461U - Welding device for improving reliability of shunt - Google Patents
Welding device for improving reliability of shunt Download PDFInfo
- Publication number
- CN210042461U CN210042461U CN201920419164.6U CN201920419164U CN210042461U CN 210042461 U CN210042461 U CN 210042461U CN 201920419164 U CN201920419164 U CN 201920419164U CN 210042461 U CN210042461 U CN 210042461U
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- CN
- China
- Prior art keywords
- shunt
- welding
- positioning
- pad
- bonding pad
- 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.)
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 7
- 238000005476 soldering Methods 0.000 abstract description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 17
- 239000007788 liquid Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model discloses a welding device for improving the reliability of a shunt, which comprises a shunt (1) and a bonding pad (2), wherein the shunt (1) is welded on the bonding pad (2); the welding device also comprises a plurality of positioning pins (3) and a plurality of positioning holes (4); positioning pin (3) set up on shunt (1), are located the welding area of shunt (1), and positioning hole (4) set up on pad (2), are located the area of welding shunt (1), and a plurality of positioning pin (3) correspond respectively and insert in a plurality of positioning hole (4), make the accurate welding position in pad (2) of shunt (1). The utility model discloses can solve the shunt because the too much problem that produces the adhesion of solder when carrying out reflow soldering, avoid simultaneously because the rosin joint that the solder produced too little.
Description
Technical Field
The utility model relates to a welding set among electric automobile thoughtlessly moves system especially relates to a welding set of shunt.
Background
The shunt is a common direct current measuring device in a new energy electric vehicle hybrid system, and the shunt in the prior art is mounted in a mode that a bonding pad corresponding to a welding point of the shunt is reserved on a Printed Circuit Board (PCB), solder paste is coated on the bonding pad, and reflow soldering is carried out after the shunt is placed. The process has the following defects:
1. the shunt is difficult to position when placed, and welding position deviation of the shunt can be caused.
2. The coating amount of the solder paste is difficult to control: if the amount of the tin paste is too large, the tin paste is melted and overflowed when passing through a furnace, and other components are adhered; if the amount of the tin paste is too small, the void ratio increases, and the solder strength is difficult to secure.
Disclosure of Invention
An object of the utility model is to provide a welding set for improving shunt reliability can solve the shunt because the too much problem that produces the adhesion of solder when carrying out reflow soldering, has avoided simultaneously because the rosin joint that the solder produced too little.
The utility model discloses a realize like this:
a welding device for improving the reliability of a shunt comprises the shunt and a bonding pad, wherein the shunt is welded on the bonding pad; the welding device also comprises a plurality of positioning pins and a plurality of positioning holes; the positioning pins are arranged on the shunt and located in a welding area of the shunt, the positioning holes are arranged on the pad and located in an area where the shunt is welded, and the plurality of positioning pins are correspondingly inserted into the plurality of positioning holes respectively to enable the shunt to be welded at the welding position of the pad accurately.
The welding pad is provided with a plurality of flow guide holes which are positioned in the area for welding the shunt.
The edge of the diversion hole is provided with a diversion trench which is positioned on the back of the bonding pad.
The guide groove extends outwards from the edge of the guide hole along the radial direction of the guide hole.
The outer diameter of the positioning pin is matched with the aperture of the positioning hole.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses the locating hole is beaten to the welding position of shunt on the pad to the location pin that sets up on the cooperation shunt, the accurate location of the shunt of being convenient for ensures that the skew of shunt is no longer than 1.
2. The utility model discloses the guiding hole is beaten to the welding position of shunt on the pad, and cooperation guiding hole increases the guiding gutter at the back of pad, can suitably increase the tin cream volume when coating tin cream, can not lead to the voidage too big because the tin volume is few, welding strength is not enough, and excessive tin melts when crossing the stove and can flow to the back through guiding hole and guiding gutter, can not cause liquid tin to spill over to other device short circuits have been avoided.
Drawings
FIG. 1 is a front view of a diverter of a welding apparatus for improving diverter reliability of the present invention;
FIG. 2 is a top view of a diverter of the welding apparatus for improving diverter reliability of the present invention;
FIG. 3 is a top view of a bonding pad of the welding apparatus for improving shunt reliability of the present invention;
FIG. 4 is a bottom view of a bonding pad of a bonding apparatus for improving reliability of a shunt according to the present invention
FIG. 5 is a top view of the welding device for improving the reliability of the shunt according to the present invention after welding;
fig. 6 is a bottom view of the welding device for improving the reliability of the shunt according to the present invention after the welding is completed. In the figure, 1 shunt, 2 bonding pad, 3 positioning pin, 4 positioning hole, 5 diversion hole and 51 diversion trench.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 3, a welding device for improving the reliability of a shunt includes a shunt 1, a pad 2, a plurality of positioning pins 3 and a plurality of positioning holes 4; positioning pin 3 sets up on shunt 1, is located shunt 1's welding area, and locating hole 4 sets up on pad 2, is located welding shunt 1's area, and a plurality of positioning pin 3 corresponds respectively and inserts in a plurality of locating hole 4, makes shunt 1 accurate welding in the welding position of pad 2.
Referring to fig. 4, the pad 2 is provided with a plurality of flow guiding holes 5, which are located in the area where the shunt 1 is welded and can be used for guiding liquid tin, so as to increase the amount of tin paste and prevent the overflow of excessive tin paste.
The edge of the flow guide hole 5 is provided with a flow guide groove 51 which is positioned on the back surface of the bonding pad 2, and the flow guide groove 51 extends outwards from the edge of the flow guide hole 5 along the radial direction of the flow guide hole 5, so that excessive liquid tin can be further guided.
The outer diameter of the positioning pin 3 is matched with the aperture of the positioning hole 4, and the positioning hole 4 with a proper aperture is matched with the insertion of the positioning pin 3, so that the deviation of the positioning position of the shunt 1 is ensured to be less than 1 degree.
Punching a positioning hole 4 on the bonding pad 2 to ensure positioning insertion of the positioning pin 3, punching a flow guide hole 5 on the bonding pad 2, and arranging a flow guide groove 51 on the back of the bonding pad 2 in a matching way, so that the amount of the tin paste can be properly increased when the tin paste is coated, the problems of too large hole rate and insufficient welding strength caused by too small amount of the tin paste are avoided, and the problems of overflow and adhesion of other components and parts when the excessive tin paste is melted in a furnace are also avoided; preferably, two positioning pins 3 and two positioning holes 4 are provided, and the two positioning pins 3 are directly inserted into the two positioning holes 4, so that the shunt 1 can be accurately positioned at the welding position of the pad 2, please refer to fig. 5 and fig. 6, and the pad 2 and the shunt 1 can guide liquid tin through the guiding holes 5 and the guiding grooves 51 during welding, thereby ensuring good welding.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. A welding device for improving the reliability of a shunt comprises the shunt (1) and a pad (2), wherein the shunt (1) is welded on the pad (2);
the method is characterized in that: the welding device also comprises a plurality of positioning pins (3) and a plurality of positioning holes (4); the positioning pins (3) are arranged on the shunt (1) and located in a welding area of the shunt (1), the positioning holes (4) are arranged on the bonding pad (2) and located in an area where the shunt (1) is welded, and the positioning pins (3) are correspondingly inserted into the positioning holes (4) respectively, so that the shunt (1) is welded at the welding position of the bonding pad (2).
2. The welding apparatus for improving reliability of a shunt according to claim 1, wherein: the welding pad (2) is provided with a plurality of flow guide holes (5) which are positioned in the area of the welding shunt (1).
3. The welding apparatus for improving reliability of a shunt according to claim 2, wherein: the edge of the flow guide hole (5) is provided with a flow guide groove (51) which is positioned on the back surface of the bonding pad (2).
4. The welding apparatus for improving reliability of a shunt according to claim 3, wherein: the guide groove (51) extends outwards from the edge of the guide hole (5) along the radial direction of the guide hole (5).
5. The welding apparatus for improving reliability of a shunt according to claim 1, wherein: the outer diameter of the positioning pin (3) is matched with the aperture of the positioning hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419164.6U CN210042461U (en) | 2019-03-29 | 2019-03-29 | Welding device for improving reliability of shunt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419164.6U CN210042461U (en) | 2019-03-29 | 2019-03-29 | Welding device for improving reliability of shunt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210042461U true CN210042461U (en) | 2020-02-07 |
Family
ID=69356992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920419164.6U Active CN210042461U (en) | 2019-03-29 | 2019-03-29 | Welding device for improving reliability of shunt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210042461U (en) |
-
2019
- 2019-03-29 CN CN201920419164.6U patent/CN210042461U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 1001, 10 / F, office building, Shihu Jinling Plaza, 88 Nanxijiang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province, 215128 Patentee after: DuPu (Suzhou) New Energy Technology Co.,Ltd. Patentee after: JIANGSU DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: 201804 room 108, floor 1, building 1, No. 6988, Jiasong North Road, Anting Town, Jiading District, Shanghai J67 Patentee before: SHANGHAI DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Welding device for improving reliability of shunt Effective date of registration: 20220114 Granted publication date: 20200207 Pledgee: Industrial and Commercial Bank of China Limited Suzhou Wuzhong sub branch Pledgor: DuPu (Suzhou) New Energy Technology Co.,Ltd. Registration number: Y2022320010022 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230202 Granted publication date: 20200207 Pledgee: Industrial and Commercial Bank of China Limited Suzhou Wuzhong sub branch Pledgor: DuPu (Suzhou) New Energy Technology Co.,Ltd. Registration number: Y2022320010022 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231220 Address after: Room 304, 3rd Floor, Building 1, No. 111 Wusongjiang Avenue, Guoxiang Street, Wuzhong District, Suzhou City, Jiangsu Province, 215124 Patentee after: JIANGSU DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: Room 1001, 10 / F, office building, Shihu Jinling Plaza, 88 Nanxijiang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province, 215128 Patentee before: DuPu (Suzhou) New Energy Technology Co.,Ltd. Patentee before: JIANGSU DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |