Spring probe
A spring probe and crown spring technology, which is applied in the field of spring probes, can solve the problems of unreliable contact between the needle shaft and the needle tube, affecting the stability of electrical signal transmission, and easily generating arc effects, so as to improve uniformity and ensure uniform contact. Effect
Pending Publication Date: 2018-04-20
东莞市星全工业有限公司
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Problems solved by technology
In the existing spring probes, the contact between the needle shaft and the needle tube is unreliable, which is prone to arc effects and affects the stability of electrical signal transmission
Method used
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[0024] The invention discloses a spring probe, in which a needle shaft and a needle tube can be in reliable contact, avoiding arc effects and ensuring stable transmission of electrical signals.
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0026] For ease of understanding, it is stipulated that the direction close to the needle shaft 1 is up, and the direction close to the needle tube 2 is down. Please refer to the attached Figure 1-Figure 3 . In a specific embodiment of the present i...
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The invention discloses a spring probe comprising a probe shaft, a probe tube and a spring. The spring is arranged in the probe tube. The probe shaft is inserted in the probe tube and can compress thespring. The spring probe also comprises a crown spring which is fixed in the probe tube. The crown spring comprises a crown spring body and clamp sheets. The clamp sheets extend along the axial direction of the crown spring body. There are multiple clamp sheets which are circumferentially distributed along the crown spring body. Multiple clamp sheets are gradually close to the axis of the crown spring body along the inserting direction of the probe shaft. The probe shaft can be elastically contacted with multiple clamp sheets in an extruding way so as to form a first contact part. The external wall of the crown spring body can be elastically contacted with the internal wall of the probe tube in an extruding way so as to form a second contact part. The electric signal from the probe shaftis transmitted to the probe tube through the first contact part and the second contact part in turn. Stable contacting of the probe shaft and the probe tube can be realized by the crown spring, and uniform contacting of the probe shaft and the probe tube can also be guaranteed by the arrangement of the crown spring so that the uniformity of current transmission can be enhanced.
Description
technical field [0001] The invention relates to the field of electronic components, more specifically, to a spring probe. Background technique [0002] A spring probe is a precision connector used in electronic products such as mobile phones. The spring probe usually includes a needle shaft, a needle tube and a spring. The spring is arranged in the needle tube, and the needle shaft is inserted in the needle tube. When the needle shaft is squeezed by the components, the spring is compressed and moves axially, the outer surface of the needle shaft contacts the inner surface of the needle tube, and the electrical signal is transmitted from the needle shaft to the needle tube. In the existing spring probes, the contact between the needle shaft and the needle tube is unreliable, and an arc effect is likely to occur, which affects the stability of electrical signal transmission. [0003] Therefore, how to design a spring probe in which the needle shaft and the needle tube can re...
Claims
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IPC IPC(8): H01R13/24
CPCH01R13/2414H01R13/2464
Inventor 周金鹏
Owner 东莞市星全工业有限公司