CN205122522U - Three -terminal fuse - Google Patents
Three -terminal fuse Download PDFInfo
- Publication number
- CN205122522U CN205122522U CN201521005516.1U CN201521005516U CN205122522U CN 205122522 U CN205122522 U CN 205122522U CN 201521005516 U CN201521005516 U CN 201521005516U CN 205122522 U CN205122522 U CN 205122522U
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- welding
- kink
- fuse
- support portion
- root bead
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model provides a three -terminal fuse, includes the fuse body, this fuse body includes supporting part and three root bead pins, and supporting part and three root bead pins structure as an organic whole, one side of supporting part is equipped with a root bead pin, and the another side of supporting part is equipped with two root bead pins, the welding foot include weld part, kink and connecting portion, the kink setting between weld part and connecting portion, supporting part and welding connect through connecting portion between the foot, the weld part perpendicular with connecting portion. The utility model discloses changed traditional three -terminal fuse's structure, prevented that three -terminal fuse from taking place the skew or rocking, make things convenient for the operating personnel welding for welding point between the welding foot and gate board and the heat conduction of fuse body is apart from the growth, has avoided the probability of flatiron contact fuse body, ensures welding back three -terminal fuse's quality, make circuit board face atress even, improve the three -terminal fuse's after the welding the yields and the quality of the circuit board after the welding.
Description
Technical field
The utility model belongs to fuse technical field, is specifically related to a kind of three end fuses.
Background technology
At present, need second protection fuse to protect in conventional Notebook Battery protection portion or other products, the model of typical fuse has D6X and D6T.The fuse of this type, except having current protecting function, also has both temperature protection function, but operating temperature is lower, and the operating temperature of such as D6T is 139 degrees Celsius.Therefore, in processing welding process, often occur the situation that fuse damages, its source of damage mainly contains following 2 points: 1. fuse is used in big current major loop, the copper sheet that pad often connects, welding rapid heat dissipation, and weld time is long; 2. fuse is without location, and general shaping paster welding, welding process needs to occur that fuse is shifted, and needs to adjust fuse position, increase the position aligning time in welding process, and weld time is uncontrollable, partially long unavoidably.Therefore how to overcome the deficiency of existing fuse, become enterprise's problem demanding prompt solution.
Summary of the invention
In view of this, the technical problems to be solved in the utility model is a kind of fixation, three end fuses of convenient welding.
In order to solve the problems of the technologies described above, the utility model adopts following scheme to realize: a kind of three end fuses, comprise fuse body, the three root bead pins that described fuse body comprises support portion and is connected with support portion, and support portion and three root bead pins are structure as a whole; Support portion while be provided with a root bead pin, the another side of the corresponding support portion of the support portion corresponding with being provided with welding foot is provided with two root bead pins; Described welding foot comprises the weld part be welded on pcb board, kink and connecting portion, and kink is arranged between weld part and connecting portion, is connected between described support portion and welding foot by connecting portion; Described weld part is vertical with connecting portion.
Wherein, described kink is made up of the first kink be connected with connecting portion and the second kink of being connected with weld part, and the first kink is vertical with the second kink.
Wherein, described support portion is rectangular structure, and the thickness of three root bead pins is less than the thickness of support portion.
Wherein, the upper surface of described support portion and the connecting portion of three root bead pins are in same level.
Wherein, the lower surface of the lower surface of described support portion and the second kink of three root bead pins is in same level.
Wherein, the length of the first described kink is 1.2mm.
Wherein, the length of the second described kink is 2mm.
Compared with prior art, the utility model changes the structure of three traditional end fuses, and the end of three root bead pins is provided with the weld part inserted in wiring board welding hole, prevents three end fuses from skew occurring or rocks, affects welding precision; Weld part is exposed to outside the back side of wiring board, handled easily personnel weld, the heat conduction of the pad between welding foot and wiring board and fuse body distance is increased, avoid the probability of flatiron contact fuse body, improve welding efficiency, reduce defective products rate, guarantee the quality of three end fuses after welding; In addition, the lower surface of the lower surface of described support portion and the second kink of three root bead pins is in same level, make the weight of fuse body can be dispersed on the second kink of support portion and three root bead pins, make wiring board plate face uniform force, improve the quality of the yields of three end fuses after welding and the wiring board after welding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is using state reference diagram of the present utility model.
1 fuse body; 11 support portions; 12 welding foots; 121 weld parts; 122 kinks; 1221 first kinks; 1222 second kinks; 123 connecting portions.
Embodiment
In order to allow those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1 to Figure 3, a kind of three end fuses, comprise fuse body 1, the three root bead pins 12 that described fuse body 1 comprises support portion 11 and is connected with support portion 11, and support portion 11 and three root bead pins 12 are structure as a whole.In order to better fix and support three end fuses, described support portion 11 is rectangular structure, and the thickness of three root bead pins is less than the thickness of support portion 11.Support portion 11 while be provided with a root bead pin 12, the another side of the corresponding support portion 11 of the support portion corresponding with being provided with a root bead pin is provided with two root bead pins 12.Three root bead pins are parallel to each other.Described welding foot 12 comprises the weld part 121 be welded on pcb board, kink 122 and connecting portion 123, kink 122 is arranged between weld part 121 and connecting portion 123, weld part 121 is arranged on the extreme ends of welding foot, is weldingly fixed in wiring board by welding foot 12 by weld part.Connected by connecting portion 123 between described support portion 11 and welding foot 12, and the thickness of support portion is less than the thickness of connecting portion.Wherein, the upper surface of described support portion 11 and the connecting portion 123 of three root bead pins are in same level.Described weld part 121 is vertical with connecting portion 123, and weld part 121 can firmly be fixed in the circuit board.
In order to reduce the active force of three end action of fuses in wiring board plate face, avoiding wiring board stressed concentrated, between weld part 121 and connecting portion 123, being provided with kink 122.This kink 122 is made up of the first kink 1221 be connected with connecting portion and the second kink 1222 be connected with weld part, and the first kink 1221 is vertical with the second kink 1222, makes between connecting portion, kink and weld part in hierarchic structure.The lower surface of the lower surface of described support portion 11 and the second kink 1222 of three root bead pins, in same level, makes the lower end of the lower end of distribution of forces in support portion of three end fuses, the second kink 1222 of three root bead pins.Wherein, the length of the first described kink is 1.2mm; The length of the second kink is 2mm.
During use, three end fuses are inserted position corresponding to wiring board, the lower end of weld part passes the fixing hole of wiring board, be exposed to outside wiring board, prevent three end fuses from skew occurring or rocks, shorten the position aligning time of three end fuses, improve the welding precision of three end fuses; Wiring board plate face is close in the lower surface of the second kink of the kink of lower surface, support portion 11, three root bead pins, makes wiring board uniform force; Weld at the back side of wiring board, three end fuses are firmly fixed in wiring board, handled easily personnel weld, the heat conduction of the pad between welding foot and wiring board and fuse body distance is increased, avoid the probability of flatiron contact fuse body, improve welding efficiency, reduce defective products rate, guarantee the quality of three end fuses after welding.
Above-described embodiment is only wherein specific implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (7)
1. an end fuse, comprise fuse body (1), it is characterized in that, the three root bead pins (12) that described fuse body (1) comprises support portion (11) and is connected with support portion (11), and support portion (11) and three root bead pins (12) are structure as a whole; Support portion (11) while be provided with a root bead pin (12), the another side of the corresponding support portion (11) of the support portion corresponding with being provided with welding foot is provided with two root bead pins (12); Described welding foot (12) comprises the weld part (121) be welded on pcb board, kink (122) and connecting portion (123), kink (122) is arranged between weld part (121) and connecting portion (123), is connected between described support portion (11) and welding foot (12) by connecting portion (123); Described weld part (121) is vertical with connecting portion (123).
2. three end fuses according to claim 1, it is characterized in that, described kink (122) is made up of the first kink (1221) be connected with connecting portion and the second kink (1222) be connected with weld part, and the first kink (1221) is vertical with the second kink (1222).
3. three end fuses according to claim 2, is characterized in that, described support portion (11) is rectangular structure, and the thickness of three root bead pins (12) is less than the thickness of support portion (11).
4. three end fuses according to claim 3, is characterized in that, the upper surface of described support portion (11) and the connecting portion (123) of three root bead pins are in same level.
5. three end fuses according to claim 4, is characterized in that, the lower surface of the lower surface of described support portion (11) and second kink (1222) of three root bead pins is in same level.
6. three end fuses according to claim 5, is characterized in that, the length of described the first kink (1221) is 1.2mm.
7. three end fuses according to claim 5, is characterized in that, the length of described the second kink (1222) is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005516.1U CN205122522U (en) | 2015-12-08 | 2015-12-08 | Three -terminal fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521005516.1U CN205122522U (en) | 2015-12-08 | 2015-12-08 | Three -terminal fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122522U true CN205122522U (en) | 2016-03-30 |
Family
ID=55578106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521005516.1U Active CN205122522U (en) | 2015-12-08 | 2015-12-08 | Three -terminal fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910697A (en) * | 2022-12-29 | 2023-04-04 | 深圳市良胜电子有限公司 | Three-terminal fuse preparation method and three-terminal fuse |
-
2015
- 2015-12-08 CN CN201521005516.1U patent/CN205122522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115910697A (en) * | 2022-12-29 | 2023-04-04 | 深圳市良胜电子有限公司 | Three-terminal fuse preparation method and three-terminal fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |