CN220934441U - Spring type probe and electronic equipment - Google Patents

Abstract

The utility model belongs to the technical field of electronic components and discloses a spring type probe and electronic equipment. The electronic equipment comprises a spring type probe and an equipment body; the spring type probe comprises a needle tube, a needle shaft, an elastic piece and an elastic piece, wherein a mounting hole is formed in the needle tube, the needle shaft part is movably arranged in the mounting hole and can slide along the axis of the needle tube, the elastic piece is arranged in the mounting hole and elastically supports the needle shaft to enable the needle shaft part to extend out of the needle tube, and the elastic piece is positioned between the needle tube and the needle shaft and is in elastic contact with the needle tube and the needle shaft, so that the needle tube and the needle shaft are kept in conduction. The needle shaft is movably arranged in the mounting hole of the needle tube, so that the needle shaft can slide along the axial direction of the needle tube, and the elastic piece is arranged to support the needle shaft; through set up the shell fragment between needle tubing and needle axle so that the needle axle is at the in-process of motion, needle tubing and needle axle form interference fit through the shell fragment to avoid needle axle and the phenomenon that the needle tubing is non-conductive in the twinkling of an eye, prevent spring type probe function failure.

Description

Spring type probe and electronic equipment

Technical Field

The present utility model relates to the field of electronic components, and in particular, to a spring type probe and an electronic device.

Background

With the development of science and technology, the types and functions of electronic devices are becoming more and more abundant and are being widely used in industries such as automobiles, medical treatment, communication and the like. As a connector in an electronic device, the spring type probe can realize a signal transmission or connection function, and particularly can be suitable for a severe environment or a sports scene. The spring type probe has the advantages of high-speed transmission, high reliability, long service life and the like.

The conventional spring type probe is generally formed by combining a needle shaft, a needle tube and a spring, wherein the end surface of the bottom of the needle shaft is an inclined surface, one end of the spring is contacted with the inclined surface of the bottom of the needle shaft, and the other end of the spring is contacted with the bottom of the inner wall of the needle tube; the bottom of the needle shaft is set to be an inclined plane, and the needle shaft is inclined when in action, so that the needle shaft is contacted with the inner wall of the needle tube, and the conduction and the resistance between the needle shaft and the needle tube are realized; however, because the needle shaft is in clearance fit with the inner wall of the needle tube, the needle shaft and the needle tube are not conducted instantaneously, and the resistance value is increased obviously instantaneously, so that the spring is burnt out due to the rising of the temperature, and the spring type probe has serious problem of functional failure.

Namely, the existing spring type probe is easy to cause the instant non-conduction of the needle shaft and the needle tube, and the resistance value is obviously increased in an instant, so that the spring is burnt out due to the rising of the temperature, and the function of the spring type probe is invalid.

Disclosure of utility model

The utility model aims to provide a spring type probe and electronic equipment, which are used for solving the problem that the conventional spring type probe is easy to cause instant non-conduction of a needle shaft and a needle tube, and the resistance value is obviously increased in an instant, so that the spring is burnt out by temperature rise to cause the function failure of the spring type probe.

To achieve the purpose, the utility model adopts the following technical scheme:

the present utility model provides a spring type probe, comprising:

A needle tube is internally provided with a mounting hole;

the needle shaft is partially movably arranged in the mounting hole and can slide along the axis of the needle tube;

An elastic member disposed in the mounting hole and elastically supporting the needle shaft so that the needle shaft portion protrudes out of the needle tube;

And the elastic sheet is positioned between the needle tube and the needle shaft and keeps elastic contact with the needle tube and the needle shaft so as to keep the needle tube and the needle shaft conductive.

As an alternative technical scheme of the spring type probe, the elastic sheet is arranged on the side wall of the needle tube, and the elastic sheet arranged on the needle tube is abutted against the needle shaft;

And/or the elastic sheet is arranged on the side wall of the needle shaft, and the elastic sheet arranged on the needle shaft is abutted against the needle tube.

As an alternative technical scheme of the spring type probe, the elastic sheet arranged on the needle tube extends obliquely towards the direction close to the mounting hole;

And/or the elastic sheet arranged on the needle shaft extends obliquely towards the direction deviating from the mounting hole.

As an alternative technical scheme of the spring type probe, a plurality of elastic sheets are uniformly arranged at intervals around the circumference of the mounting hole.

As an alternative technical scheme of the spring type probe, the needle shaft is formed by stamping and bending, and the needle shaft is used for forming two-point or multi-point contact with electric equipment.

As an alternative technical scheme of the spring type probe, the needle tube is formed by stamping and bending a conductive sheet. As an alternative technical scheme of the spring type probe, a stop part is arranged on the needle tube, two ends of the elastic piece are respectively abutted to the needle shaft and the stop part, and the stop part is formed by punching and bending the conductive sheet part.

As an alternative technical scheme of the spring type probe, two sides of the conductive sheet enclosure are correspondingly provided with a dovetail block and a dovetail groove, and the dovetail block is matched with the dovetail groove.

As an alternative solution of the spring type probe, the elastic member is partially disposed in the needle shaft and is limited between the needle tube and the needle shaft.

The utility model provides electronic equipment, which comprises an equipment body and a spring type probe, wherein the spring type probe is arranged on the equipment body.

The beneficial effects are that:

The utility model provides a spring type probe which comprises a needle tube, a needle shaft, an elastic piece and an elastic piece, wherein the needle shaft is movably arranged in a mounting hole of the needle tube so that the needle shaft can slide along the axial direction of the needle tube, and the elastic piece is arranged to support the needle shaft; through set up the shell fragment between needle tubing and needle axle so that the needle axle is at the in-process of motion, needle tubing and needle axle form interference fit through the shell fragment to avoid needle axle and the phenomenon that the needle tubing is non-conductive in the twinkling of an eye, prevent spring type probe function failure.

The utility model provides electronic equipment, which comprises an equipment body and the spring type probe, wherein the spring type probe is arranged on the equipment body, so that a needle shaft and a needle tube are always kept on, and the phenomenon of instant power failure is avoided.

Drawings

FIG. 1 is a schematic view of a circular spring probe according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a circular spring probe according to one embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a circular spring probe provided in accordance with one embodiment of the present utility model;

FIG. 4 is a top and bottom view of a circular spring probe according to one embodiment of the present utility model;

FIG. 5 is a schematic diagram of a square spring probe according to an embodiment of the present utility model;

FIG. 6 is an exploded view of a square spring probe according to one embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a square spring probe according to one embodiment of the present utility model;

FIG. 8 is a top and bottom view of a square spring probe according to one embodiment of the present utility model;

FIG. 9 is a schematic diagram of a circular spring probe according to a second embodiment of the present utility model;

FIG. 10 is an exploded view of a circular spring probe according to a second embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a circular spring probe according to a second embodiment of the present utility model at different angles;

FIG. 12 is a top view and a bottom view of a circular spring probe according to a second embodiment of the present utility model;

FIG. 13 is a schematic diagram of a square spring probe according to a second embodiment of the present utility model;

FIG. 14 is an exploded view of a square spring probe according to a second embodiment of the present utility model;

FIG. 15 is a cross-sectional view of a square spring probe according to a second embodiment of the present utility model;

FIG. 16 is a top view and a bottom view of a square spring probe according to a second embodiment of the present utility model;

FIG. 17 is a schematic view of a circular spring probe according to a third embodiment of the present utility model;

FIG. 18 is an exploded view of a circular spring probe according to a third embodiment of the present utility model;

FIG. 19 is a cross-sectional view of a circular spring probe provided in accordance with a third embodiment of the present utility model;

FIG. 20 is a top and bottom view of a circular spring probe provided in accordance with a third embodiment of the present utility model;

FIG. 21 is a schematic diagram of a square spring probe according to a third embodiment of the present utility model;

FIG. 22 is an exploded view of a square spring probe according to a third embodiment of the present utility model;

FIG. 23 is a cross-sectional view of a square spring probe provided in accordance with a third embodiment of the present utility model;

FIG. 24 is a top and bottom view of a square spring probe according to a third embodiment of the present utility model;

FIG. 25 is a schematic view of a circular spring probe according to a fourth embodiment of the present utility model;

FIG. 26 is an exploded view of a circular spring probe according to a fourth embodiment of the present utility model;

FIG. 27 is a cross-sectional view of a circular spring probe according to a fourth embodiment of the present utility model at different angles;

FIG. 28 is a top and bottom view of a circular spring probe provided in accordance with a fourth embodiment of the present utility model;

FIG. 29 is a schematic view of a square spring probe according to a fourth embodiment of the present utility model;

FIG. 30 is an exploded view of a square spring probe according to a fourth embodiment of the present utility model;

FIG. 31 is a cross-sectional view of a square spring probe according to a fourth embodiment of the present utility model;

Fig. 32 is a top view and a bottom view of a square spring probe according to a fourth embodiment of the present utility model.

In the figure:

1. A needle tube; 2. an elastic member; 3. a needle shaft; 4. and the elastic sheet.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

As shown in fig. 1 to 4, the present utility model provides a spring probe and an electronic device, wherein the electronic device includes an elastic probe and a device body, and the elastic probe is disposed on the device body. The spring type probe comprises a needle tube 1, a needle shaft 3, an elastic piece 2 and an elastic piece 4, wherein a mounting hole is formed in the needle tube 1, and the needle shaft 3 is movably arranged in the mounting hole and can slide along the axis of the needle tube 1; the elastic piece 2 is arranged in the mounting hole and elastically supports the needle shaft 3 so that the needle shaft 3 partially extends out of the needle tube 1; the elastic sheet 4 is positioned between the needle tube 1 and the needle shaft 3 and keeps elastic contact with both the needle tube 1 and the needle shaft 3 so as to keep the needle tube 1 and the needle shaft 3 conductive.

Specifically, the needle tube 1 is used for being mounted on the device body of the electronic device, and the mounting modes of the needle tube 1 are various, such as welding, clamping, buckling and the like; the electronic device may be any device with a flexible probe, such as a portable electronic device, a printer, a lamp, a vehicle-mounted device, and the like.

The spring type probe comprises a needle tube 1, a needle shaft 3, an elastic piece 2 and a spring piece 4, wherein the needle shaft 3 is movably arranged in a mounting hole of the needle tube 1, so that the needle shaft 3 can slide along the axial direction of the needle tube 1, and the elastic piece 2 is arranged to support the needle shaft 3; through set up shell fragment 4 between needle tubing 1 and needle shaft 3 so that needle shaft 3 is in the in-process of motion, needle tubing 1 and needle shaft 3 form interference fit through shell fragment 4 to avoid needle shaft 3 and the phenomenon that needle tubing 1 is non-conductive in the twinkling of an eye, prevent spring type probe function failure. The electronic equipment provided by the utility model comprises the spring type probe and the equipment body, and the spring type probe is arranged on the equipment body, so that the needle shaft 3 and the needle tube 1 are always kept on, and the phenomenon of instant power failure is avoided.

Further, the needle shaft 3 is provided with a butt joint section and an exposed section, the butt joint section is arranged in the mounting hole, and the exposed section at least partially extends out of the mounting hole; the cross-sectional shape of the mounting hole is the same as the cross-sectional shape of the abutment section of the needle shaft 3. The cross section shape of the butt joint section is the same as that of the mounting hole, so that the needle tube 1 and the needle shaft 3 can be conveniently and stably conducted through the elastic sheet 4, and poor contact between the elastic piece 4 and the needle tube 1 or the needle shaft 3 caused by shape difference is avoided. Preferably, the mounting hole of the needle tube 1 is a circular hole, and the cross section of the abutting section of the needle shaft 3 is also circular; the cross-sectional shapes of the abutting section and the exposed section of the needle shaft 3 are the same.

Fig. 1 to 4 provide a circular spring type probe, which is specifically: the needle tube 1 is cylindrical, and the cross-sectional shape of the needle shaft 3 is also circular. Fig. 5 to 8 provide a square spring type probe, which is specifically: the cross-sectional shapes of the needle tube 1 and the needle shaft 3 are square. In other embodiments, the cross-sectional shape of needle cannula 1 and needle shaft 3 may be, but is not limited to, circular or square.

In this embodiment, the needle shaft 3 and the needle tube 1 are formed by punching and bending. The round or square needle shaft 3 is obtained by bending and rolling through the stamping process, compared with turning forming, the stamping and bending forming can save consumed raw materials, thereby reducing raw material cost, being beneficial to directly processing the elastic sheet 4 arranged on the needle shaft 3 through the stamping process, and not considering the related problems of independent processing and installation of the elastic sheet 4.

The spring type probe is often connected between a battery and electric equipment so as to realize signal transmission or connection, the needle tube 1 is kept in contact with the battery, the needle shaft 3 is kept in contact with the electric equipment, and the end part of the needle shaft 3 obtained by stamping, bending and forming can form two or more points of contact with the electric equipment, so that the reliability and stability of connection are improved. The circular spring type probe as shown in fig. 1 to 4, the tip of the needle shaft 3 is composed of two hemispheres so as to realize two-point contact with electric equipment; as shown in fig. 5 to 8, the square spring type probe is formed by gathering four triangular sheets at the top end of the needle shaft 3 so as to realize four-point contact with electric equipment; in other embodiments, the number and location of the contact points may be varied by providing a specific configuration of the tip of the needle shaft 3.

Specifically, the needle tube 1 is formed by stamping and bending a conductive sheet, and dovetail blocks and dovetail grooves are correspondingly arranged on two sides of the conductive sheet, and the dovetail blocks and the dovetail grooves are matched. Through setting up the cooperation of forked tail piece and dovetail for the both sides joint of conducting strip, thereby increase the joint strength that the conducting strip encloses. After the conducting strip is enclosed, the two sides of the conducting strip are welded, and the welding points can be arranged at the corresponding positions of the dovetail block and the dovetail groove or at other positions on the two sides of the conducting strip. Referring to fig. 1, a circular spring probe is provided with a dovetail block and a dovetail groove which are matched with each other at two sides of the conductive sheet enclosure; referring to fig. 5, the square spring type probe is not provided with dovetail blocks and dovetail grooves at both sides of the conductive sheet enclosure. In other embodiments, square or other shaped spring probes may also be provided with dove-tail blocks and dove-tail grooves.

Further, a stopper is provided on the needle tube 1, two ends of the elastic member 2 are respectively abutted against the needle shaft 3 and the stopper, and the stopper is formed by punching and bending a conductive sheet part. Through directly bending the conducting strip part blanking and forming the stop portion, need not to process the stop portion alone, the conducting strip blanking forms the fretwork mouth after buckling simultaneously, and the fretwork mouth can be used to observe the elastic component 2 in the needle tubing 1 to thereby judge the condition of elastic component 2 in time maintenance change. In other embodiments, a stopper may be separately provided on the needle tube 1 for limiting, and the stopper may be detachably connected to the needle tube 1 by a clamping manner or the like.

Preferably, the stopper is provided in plurality at uniform intervals around the circumference of the needle tube 1. Referring to fig. 4, the circular spring type probe is provided with three stoppers at uniform intervals; referring to fig. 8, the square spring type probe is provided with two stoppers relatively; the shape and size of the stop portion can be set according to practical situations.

Further, the elastic piece 2 is partially penetrated in the needle shaft 3 and is limited between the needle tube 1 and the needle shaft 3. By partly threading the elastic member 2 into the needle shaft 3, a stable and reliable elastic support is provided for the needle shaft 3.

Specifically, the elastic member 2 is provided as a spring, the spring portion penetrating into the needle shaft 3; the needle tube 1 is also provided with a limiting part formed by inwards bending, and the needle shaft 3 and the spring are both limited between the limiting part and the stopping part.

In the present embodiment, the needle shaft 3 is hollow inside and takes a stepped shape as a whole; the limiting part is arranged at the top end of the needle tube 1, and the stopping part is arranged at the bottom end of the needle tube 1; the spring is arranged in the needle shaft 3 in a penetrating way, the needle shaft 3 and the spring are arranged in the mounting hole together, and the top end of the needle tube 1 is bent to form a limiting part so as to limit the needle shaft 3 and the spring. In other embodiments, the elastic member 2 may be an elastic sheet or an elastic block.

In order to realize stable limit, a plurality of limit parts are arranged on the needle tube 1. Referring to fig. 1, three limiting parts are uniformly arranged at intervals at the top end of a needle tube 1; referring to fig. 5, the tip of the needle tube 1 is formed with four stopper portions at uniform intervals.

In order to enable the elastic sheet 4 to connect the needle tube 1 and the needle shaft 3, the elastic sheet 4 is arranged on the side wall of the needle shaft 3, and the elastic sheet 4 arranged on the needle shaft 3 is abutted against the needle tube 1. The elastic piece 4 is arranged on the side wall of the needle shaft 3, and the elastic piece 4 is abutted against the needle tube 1, so that the needle tube 1 and the needle shaft 3 form interference fit. In this embodiment, the elastic piece 4 is disposed on a side wall of the butt joint section of the needle shaft 3, and the elastic piece 4 and the needle shaft 3 are both processed by adopting a stamping process. In other embodiments, the elastic piece 4 may be separately processed, and then the elastic piece 4 may be mounted on the needle shaft 3 by welding or the like.

Specifically, the elastic piece 4 provided on the needle shaft 3 extends obliquely toward a direction away from the mounting hole. By arranging the elastic sheet 4 to extend obliquely towards the direction deviating from the mounting hole, elastic deformation is generated by means of the material of the elastic sheet 4. In this embodiment, the end of the elastic sheet 4 near the needle tube 1 is bent to form an arc-shaped protrusion, and the arc-shaped protrusion is abutted with the needle tube 1.

Preferably, the elastic pieces 4 are provided in plurality at uniform intervals around the circumference of the mounting hole. The more the number of the elastic sheets 4 is, the better the interference fit effect between the needle tube 1 and the needle shaft 3 is, which is beneficial to keeping conduction between the needle tube 1 and the needle shaft 3. In this embodiment, two spring plates 4 are oppositely disposed.

Example two

As shown in fig. 9 to 12, the second embodiment provides a circular spring type probe. As shown in fig. 13 to 16, the second embodiment provides a square spring type probe. Compared with the first embodiment, in the second embodiment, the spring 4 is not arranged on the side wall of the needle shaft 3 of the spring type probe, but the spring 4 is arranged on the side wall of the needle tube 1, and the spring 4 arranged on the needle tube 1 is abutted against the needle shaft 3 and extends obliquely towards the direction close to the mounting hole.

Example III

As shown in fig. 17 to 20, the third embodiment provides a circular spring type probe. As shown in fig. 21 to 24, the third embodiment provides a square spring type probe. In comparison with the first embodiment, the needle shaft 3 of the spring probe of the third embodiment is formed by turning. The inside of needle shaft 3 is equipped with the blind hole, and the both ends of elastic component 2 butt respectively in the bottom of stopping portion and blind hole.

Example IV

As shown in fig. 25 to 28, the fourth embodiment provides a circular spring type probe. As shown in fig. 29 to 32, the fourth embodiment provides a square spring type probe. Compared with the first embodiment, the spring type probe in the third embodiment is provided with the spring piece 4 on the needle shaft 3 and the needle tube 1, and the spring piece 4 on the needle tube 1 and the spring piece 4 on the needle shaft 3 are arranged in a staggered mode. Preferably, all the elastic pieces 4 are uniformly spaced around the circumference of the needle tube 1. Referring to fig. 30 and 31, in the square spring-type probe according to the fourth embodiment, two elastic pieces 4 are oppositely disposed on the needle shaft 3, and two elastic pieces 4 are oppositely disposed on the needle tube 1; after assembly, the sides of the square spring type probe in four directions are provided with a spring piece 4. In other embodiments, the number of spring plates 4 provided on the needle shaft 3 and the needle tube 1 may be different.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Spring probe, characterized in that includes:

A needle tube (1) is internally provided with a mounting hole;

The needle shaft (3) is partially movably arranged in the mounting hole and can slide along the axis of the needle tube (1);

An elastic member (2) which is provided in the mounting hole and elastically supports the needle shaft (3) so that the needle shaft (3) partially protrudes out of the needle tube (1);

and the elastic sheet (4) is positioned between the needle tube (1) and the needle shaft (3) and keeps elastic contact with both the needle tube (1) and the needle shaft (3) so as to keep the needle tube (1) and the needle shaft (3) conductive.

2. Spring type probe according to claim 1, characterized in that the spring plate (4) is arranged on the side wall of the needle tube (1), and the spring plate (4) arranged on the needle tube (1) is abutted against the needle shaft (3);

And/or the elastic sheet (4) is arranged on the side wall of the needle shaft (3), and the elastic sheet (4) arranged on the needle shaft (3) is abutted against the needle tube (1).

3. Spring probe according to claim 2, characterized in that the spring plate (4) provided on the needle tube (1) extends obliquely towards the direction approaching the mounting hole;

and/or the elastic sheet (4) arranged on the needle shaft (3) extends obliquely towards the direction deviating from the mounting hole.

4. Spring probe according to claim 1, characterized in that the spring plates (4) are arranged in a plurality at regular intervals around the circumference of the mounting hole.

5. Spring probe according to claim 1, characterized in that the needle shaft (3) is formed by stamping and bending, and the needle shaft (3) is used for forming two or more points of contact with the electrical equipment.

6. Spring probe according to claim 1, characterized in that the needle tube (1) is formed by stamping and bending from a conductive sheet.

7. The spring type probe according to claim 6, wherein a stop portion is provided on the needle tube (1), both ends of the elastic member (2) are respectively abutted against the needle shaft (3) and the stop portion, and the stop portion is formed by punching and bending the conductive sheet portion.

8. The spring probe of claim 6, wherein two sides of the conductive sheet enclosure are correspondingly provided with a dovetail block and a dovetail groove, and the dovetail block and the dovetail groove are matched.

9. Spring probe according to any of claims 1-8, characterized in that the elastic element (2) is partly arranged inside the needle shaft (3) and is limited between the needle tube (1) and the needle shaft (3).

10. An electronic device comprising a device body and a spring probe according to any one of claims 1-9, said spring probe being arranged in said device body.