CN205333700U - Test needle with cone - Google Patents
Test needle with cone Download PDFInfo
- Publication number
- CN205333700U CN205333700U CN201521041184.2U CN201521041184U CN205333700U CN 205333700 U CN205333700 U CN 205333700U CN 201521041184 U CN201521041184 U CN 201521041184U CN 205333700 U CN205333700 U CN 205333700U
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- CN
- China
- Prior art keywords
- test
- needle
- testing needle
- test department
- conical head
- 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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Abstract
The utility model discloses a test needle with cone, including toper syringe needle portion and circumference equipartition in an even number test portion of toper syringe needle portion forms V font fluting between the adjacent test portion, V font fluting link up each other, just the grooved both sides of V font wall sets up to the arc. This structural design's test needle does benefit to the discharge of scaling powder, makes scaling powder or other foreign matters be difficult for remaining on the test body, can ensure to test the needle and contact test point and part foot on the circuit board steadily, is difficult for sliping off.
Description
Technical field
This utility model relates to circuit board testing technical field, particularly relates to a kind of testing needle with conical head。
Background technology
It is said that in general, in the manufacture process of circuit board, have many extrinsic factor can affect the circuit board in production, for instance the damage of assembly, Short Item, line short, open lines, part are bad, the exception of board or artificial careless mistake etc.。Therefore, in order to the delivery quality of electronic product is carried out keyholed back plate, after completing the manufacture process of circuit board, it is typically manufactured the chamber of commerce and first by automation equipment, circuit board is carried out testing electrical property, and whether utilize the data of measurement to carry out the electrical parameter of each assembly on decision circuitry plate in addition normal, use the quality whether compliant confirming circuit board in advance, allow the electronic product using circuit board conform with quality standard。
Thus, taking into account board production complete after testing requirement, when circuit design, many test points will be set on circuit boards, in order to later use automation equipment, circuit board is tested。Specifically, when circuit board is when testing, can by the test point of the testing needle contact circuit board being arranged in automation equipment, and input test signal tests to circuit board, and whether carry out the function of decision circuitry plate according to the signal of automation equipment computer measurement normal。Additionally, test point on circuit boards is generally part foot or pad (solderingpoint)。
Common circuit board test point is with the glomerate bulge-structure of shape at the surface attachment tin cream of each test point。Afterwards, directly contacted the spherical bulge-structure being positioned at test point by the testing needle of automation equipment, then measured relevant electrical parameter, for instance resistance value, capacitance or inductance value etc.。Additionally, due to the assembly of circuit board is only arranged at same surface has become the trend of development, in order to reduce paste solder printing equipment and human cost, in test point, the mode of cream is changed into stannum on wave-soldering by traditional paste solder printing。
But, if the mode of stannum on use wave-soldering, substantial amounts of scaling powder may remain on test point on circuit boards and part foot, testing needle not designed in automation equipment is easily adhered to by scaling powder, testing needle and part foot loose contact when causing measuring, affect stability during automation equipment test。It is to say, when testing needle is easily adhered to by scaling powder, it is possible to measuring error can be caused to make production capacity reduce, and increase the cost of manufacture。Accordingly, it is desirable to provide a kind of testing needle with conical head is to solve the problems referred to above。
Utility model content
It is reliable that this utility model provides a kind of positioning stablity, and does not result in the testing needle of foreign body residual。
For reaching this purpose, this utility model by the following technical solutions:
A kind of testing needle with conical head, this testing needle includes tapered needle portion and circumference uniform distribution in the even number test department in described tapered needle portion, forming V-shaped fluting between adjacent test department, described V-shaped fluting is mutually communicated, and the two side of described V-shaped fluting is set to arc。
Wherein, being provided with intersection between an adjacent surface of adjacent described V-shaped fluting, described intersection forms the interior incline of described test department。
Wherein, described test department is set to 4 and is oppositely arranged between two。
Wherein, it is mutually perpendicular between the interior incline of the test department being oppositely arranged。
Wherein, the tapering in described tapered needle portion is less than 70 degree。
The beneficial effects of the utility model: this utility model includes tapered needle portion and circumference uniform distribution in the even number test department in described tapered needle portion, V-shaped fluting is formed between adjacent test department, described V-shaped fluting is mutually communicated, and the two side of described V-shaped fluting is set to arc。The testing needle of this structural design, is beneficial to the discharge of scaling powder, makes scaling powder or other foreign bodies not easily residue on test body, it can be ensured that testing needle is stably contacted with the test point on circuit board and part foot, not easily slips off。
Accompanying drawing explanation
Fig. 1 is the axonometric drawing of a kind of testing needle needle section with conical head of this utility model。
Fig. 2 is the front view of a kind of testing needle needle section with conical head of this utility model。
Detailed description of the invention
Below in conjunction with further illustrating the technical solution of the utility model shown in accompanying drawing 1 to Fig. 2 and by detailed description of the invention。
A kind of testing needle with conical head, this testing needle includes tapered needle portion 1 and circumference uniform distribution in the even number test department 2 in described tapered needle portion 1, forming V-shaped fluting 3 between adjacent test department 2, described V-shaped fluting 3 is mutually communicated, and the two side of described V-shaped fluting 3 is set to arc。Preferably, arc is set to helical form or arranges to V-shaped 3 internal protrusion shapes of slotting, and with this test point being easy to stably to be contacted with on circuit board and part foot, not easily slips off。
It is further preferred that be provided with intersection between an adjacent surface of adjacent described V-shaped fluting 3, described intersection forms the interior incline 21 of described test department 2, and as preferably, test department 2 is arranged in prismatic, and the focus of 3 inclines is positioned at the edge in tapered needle portion 1。
It is further preferred that described test department 2 is set to 4 and is oppositely arranged between two, it is mutually perpendicular between the interior incline 21 of the test department 2 being oppositely arranged。This structural design, facilitates the processing of test department 2, convenient and swift, time saving and energy saving。
Wherein, the tapering in described tapered needle portion is less than 70 degree, it is preferred to 65 degree
By the testing needle that said structure designs, it is beneficial to the discharge of scaling powder, scaling powder or other foreign bodies is made not easily to residue on the test body of testing needle, and then promote the service life of testing needle, reduce the cost of product manufacturing, additionally, testing needle can stably be contacted with the test point on circuit board and part foot, not easily slip off。
Know-why of the present utility model is described above in association with specific embodiment。These describe and are intended merely to explanation principle of the present utility model, and can not be construed to the restriction to this utility model protection domain by any way。Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes fall within protection domain of the present utility model。
Claims (5)
1. the testing needle with conical head, it is characterized in that, this testing needle includes tapered needle portion and circumference uniform distribution in the even number test department in described tapered needle portion, V-shaped fluting is formed between adjacent test department, described V-shaped fluting is mutually communicated, and the two side of described V-shaped fluting is set to arc。
2. a kind of testing needle with conical head according to claim 1, it is characterised in that being provided with intersection between an adjacent surface of adjacent described V-shaped fluting, described intersection forms the interior incline of described test department。
3. a kind of testing needle with conical head according to claim 2, it is characterised in that described test department is set to 4 and is oppositely arranged between two。
4. a kind of testing needle with conical head according to claim 3, it is characterised in that be mutually perpendicular between the interior incline of the test department being oppositely arranged。
5. a kind of testing needle with conical head according to claim 1, it is characterised in that the tapering in described tapered needle portion is less than 70 degree。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041184.2U CN205333700U (en) | 2015-12-14 | 2015-12-14 | Test needle with cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041184.2U CN205333700U (en) | 2015-12-14 | 2015-12-14 | Test needle with cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333700U true CN205333700U (en) | 2016-06-22 |
Family
ID=56206976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521041184.2U Expired - Fee Related CN205333700U (en) | 2015-12-14 | 2015-12-14 | Test needle with cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205333700U (en) |
-
2015
- 2015-12-14 CN CN201521041184.2U patent/CN205333700U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160622 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |