CN204668505U - The assembly structure of a kind of metal needle and circuit board - Google Patents
The assembly structure of a kind of metal needle and circuit board Download PDFInfo
- Publication number
- CN204668505U CN204668505U CN201520338304.9U CN201520338304U CN204668505U CN 204668505 U CN204668505 U CN 204668505U CN 201520338304 U CN201520338304 U CN 201520338304U CN 204668505 U CN204668505 U CN 204668505U
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- CN
- China
- Prior art keywords
- circuit board
- metal needle
- head
- metal
- cannula
- 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.)
- Expired - Fee Related
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model discloses the assembly structure of a kind of metal needle and circuit board, comprise the circular hole that the head of metal needle and circuit board are offered; The cross section ovalize of the head of metal needle, each oval cross section is formed with the smooth connected circular arc of head and the tail by some sections; Be provided with oval endoporus at the center of oval cross section, this oval endoporus is formed with the smooth connected circular arc of head and the tail by some sections; Metal cannula has been pre-fixed in the circular hole that circuit board is offered; Metal cannula on the head of metal needle and circuit board is interference fit, and namely monolateral value of interference fit is 0.08 ~ 0.16mm; Metal needle, by the metal cannula on special tooling press-in circuit board, makes the elasticity tension of metal needle by self and the metal cannula compact siro spinning technology of circuit board.Assembly structure of the present utility model, can make metal needle directly be pressed in the jack of circuit board, be fixedly connected with by its own resilient of metal needle with the jack of circuit board, without the need to welding, and has good electric conductivity.
Description
Technical field
The utility model relates to the assembly structure of a kind of metal needle and circuit board.
Background technology
Metal needle is mainly used on automotive connector, the flake head of metal needle is directly pressed in the jack on circuit board, is used in circuit and is blocked between place or isolated obstructed circuit, erect the bridge of communication, thus make current flowing, make the function that circuit realiration is predetermined.
In prior art, the assembly technology of metal needle and circuit board is after metal needle is inserted circuit board, adopts traditional scolding tin mode to weld.The metal needle of this kind of welding manner processing easily causes sealing-off and rosin joint, and processing cost is high, seriously polluted to environment, not environmentally.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the assembly structure of a kind of metal needle and circuit board is provided, it can make metal needle directly be pressed in the jack of circuit board, be fixedly connected with the jack of circuit board by its own resilient of metal needle, without the need to welding, and there is good electric conductivity.
The technical scheme realizing above-mentioned purpose is: the assembly structure of a kind of metal needle and circuit board, comprise the circular hole of the head for inserting metal needle that the head of metal needle and circuit board are offered, the cross section ovalize of the head of described metal needle, each oval cross section is formed with the smooth connected circular arc of head and the tail by some sections; Be provided with oval endoporus at the center of oval cross section, this oval endoporus is formed with the smooth connected circular arc of head and the tail by some sections; Metal cannula has been pre-fixed in the circular hole that described circuit board is offered, wherein,
Metal cannula on the head of described metal needle and described circuit board is interference fit, namely monolateral value of interference fit is 0.08 ~ 0.16mm, described metal needle is pressed in the metal cannula on described circuit board by special tooling, makes the elasticity tension of described metal needle by self and the metal cannula compact siro spinning technology of described circuit board.
Above-mentioned metal needle and the assembly structure of circuit board, wherein, the inner surface of described metal cannula electroplates pure stannum layer.
Above-mentioned metal needle and the assembly structure of circuit board, wherein, the head exterior surface of described metal needle electroplates pure stannum layer.
The technical scheme of the assembly structure of metal ferrule of the present utility model and circuit board, adopt the head of metal needle and the jack interference fit of circuit board, metal needle is made directly to be pressed in the jack of circuit board, only be fixedly connected with the jack of circuit board by its own resilient of metal needle, without the need to welding, and there is good electric conductivity, instead of traditional welding procedure, cut down the number of intermediate links to the pollution of environment, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the assembly structure of metal ferrule of the present utility model and circuit board.
Embodiment
In order to understand the technical solution of the utility model better, be also described in detail by reference to the accompanying drawings below by specific embodiment:
Refer to Fig. 1, the assembly structure of a kind of metal needle of the present utility model and circuit board, comprise the circular hole of the head 12 for inserting metal needle 10 that the head 12 of metal needle 10 and circuit board 20 are offered, wherein, the outer surface of the head 12 of metal needle 10 electroplates pure stannum layer, the cross section ovalize of the head 12 of metal needle 10, oval cross section is formed with the smooth connected circular arc of head and the tail by some sections, and this structure will make it possess spring function; Be provided with oval endoporus at the center of oval cross section, i.e. fish eyelet 11, this oval endoporus 11 is formed with the smooth connected circular arc of head and the tail by some sections, thus makes oval endoporus 11 possess spring function; Metal cannula 21 has been pre-fixed in the circular hole that circuit board 20 is offered; The inner surface of metal cannula 21 electroplates pure stannum layer;
The head 12 of metal needle 10 is interference fit with the metal cannula 21 on circuit board 20, namely monolateral value of interference fit is 0.08 ~ 0.16mm, metal needle 10 is by the metal cannula 21 on special tooling press-in circuit board 20, make the elasticity tension of metal needle 10 by self and metal cannula 21 compact siro spinning technology of circuit board 20, reach the function of On current.
The technical scheme of the assembly structure of metal ferrule of the present utility model and circuit board, adopt the head of metal needle and the jack interference fit of circuit board, metal needle is made directly to be pressed in the jack of circuit board, only be fixedly connected with the jack of circuit board by its own resilient of metal needle, without the need to welding, and there is good electric conductivity, instead of traditional welding procedure, cut down the number of intermediate links to the pollution of environment, energy-conserving and environment-protective.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (3)
1. the assembly structure of a metal needle and circuit board, comprise the circular hole of the head for inserting metal needle that the head of metal needle and circuit board are offered, the cross section ovalize of the head of described metal needle, each oval cross section is formed with the smooth connected circular arc of head and the tail by some sections; Be provided with oval endoporus at the center of oval cross section, this oval endoporus is formed with the smooth connected circular arc of head and the tail by some sections; Pre-fix metal cannula in the circular hole that described circuit board is offered, it is characterized in that,
Metal cannula on the head of described metal needle and described circuit board is interference fit, namely monolateral value of interference fit is 0.08 ~ 0.16mm, described metal needle is pressed in the metal cannula on described circuit board by special tooling, makes the elasticity tension of described metal needle by self and the metal cannula compact siro spinning technology of described circuit board.
2. the assembly structure of metal needle according to claim 1 and circuit board, is characterized in that, the inner surface of described metal cannula electroplates pure stannum layer.
3. the assembly structure of metal needle according to claim 1 and circuit board, is characterized in that, the head exterior surface of described metal needle electroplates pure stannum layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338304.9U CN204668505U (en) | 2015-05-22 | 2015-05-22 | The assembly structure of a kind of metal needle and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338304.9U CN204668505U (en) | 2015-05-22 | 2015-05-22 | The assembly structure of a kind of metal needle and circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668505U true CN204668505U (en) | 2015-09-23 |
Family
ID=54138857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520338304.9U Expired - Fee Related CN204668505U (en) | 2015-05-22 | 2015-05-22 | The assembly structure of a kind of metal needle and circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204668505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632560A (en) * | 2019-09-23 | 2019-12-31 | 长沙莫之比智能科技有限公司 | Radar of exempting from welding assembly |
-
2015
- 2015-05-22 CN CN201520338304.9U patent/CN204668505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632560A (en) * | 2019-09-23 | 2019-12-31 | 长沙莫之比智能科技有限公司 | Radar of exempting from welding assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20200522 |