Probe

Abstract

The utility model belongs to the technical field of probe structures, and discloses a probe, which comprises a first shell comprising a fixed part and a first contact part which are connected with each other; the second shell comprises an elastic contraction part and a second contact part which are connected with each other, and the elastic contraction part is sleeved with the fixing part; and the elastic piece is arranged in the first shell and the second shell, and the elastic piece is connected with the first contact part and the second contact part so as to enable the elastic contraction part to slide relative to the fixed part. According to the utility model, good contact between the probe and a measured object is ensured by arranging the elastic piece, the probe can adapt to different measured surfaces by arranging the first contact part and the second contact part, the application scene of the probe is expanded, and the elastic contraction part is sleeved in the fixed part, so that the probe can be conveniently fixed. And the elastic piece is arranged in the first shell and the second shell, so that the stability of the overall structure of the probe is improved, and the service life of the probe is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the probe structure technical field relates to a probe. BACKGROUND

[0002] Pogo pin (also known as probe) is a kind of core components applied in the precision connector in consumer electronics products, communication, automobile, medical treatment, aerospace, military and other fields, and the electrical connection between precision connector and external electronic components is realized by the probe, so as to play the normal function of precision connector.

[0003] As known, the probe generally includes needle shaft, needle tube and spring, the needle shaft is sleeved on the needle tube and has initial position and compression position of sliding back along the axial direction of needle shaft relative to needle tube, the spring is collected in needle tube and abuts between needle shaft and needle tube, so that needle shaft can slide relative to needle tube, and needle shaft slides to initial position under the action of spring.

[0004] However, the needle shaft of the existing probe is prone to breakage under the action of spring, and the existing probe is only suitable for specific measured objects, so that the existing probe cannot meet the demand.

[0005] Therefore, there is an urgent need for a probe to solve the above technical problems in the field. CONTENT OF UTILITY MODEL

[0006] Therefore, the utility model aims at solving the above problems, and provides a probe, which comprises:

[0007] The first shell comprises a fixed part and a first contact part connected with each other;

[0008] The second shell comprises an elastic contraction part and a second contact part connected with each other, and the elastic contraction part is sleeved in the fixed part;And

[0009] The elastic member is arranged in the first shell and the second shell, and the elastic member connects the first contact part and the second contact part to make the elastic contraction part slide relative to the fixed part.

[0010] As a further improvement of the utility model, the first shell, the second shell and the elastic member are integrally formed.

[0011] As a further improvement of the utility model, the elastic member comprises at least two spiral springs, the spiral spring comprises an axial center connecting end and an outer ring connecting end, and adjacent two spiral springs are connected through the axial center connecting end or the outer ring connecting end.

[0012] As a further improvement of the present invention, the first contact portion includes a first probe end and a first elastic member connecting end bent inwardly, and the first elastic member connecting end is connected to the outer ring connecting end.

[0013] As a further improvement of the present invention, the second contact portion includes a second probe end and a second elastic member connecting end bent inwardly, and the second elastic member connecting end is connected to the outer ring connecting end.

[0014] As a further improvement of the present invention, the first probe end includes a first probe and a second probe that are arranged opposite to each other.

[0015] As a further improvement of the present invention, the second probe end includes a third probe and a fourth probe that are arranged opposite to each other.

[0016] As a further improvement of the present invention, the first shell is cylindrical, and the diameter of the fixing portion is greater than the diameter of the first contact portion.

[0017] As a further improvement of the present invention, the second shell is cylindrical, and the diameter of the elastic contraction portion is smaller than the diameter of the fixing portion.

[0018] As a further improvement of the present invention, an arc-shaped chamfer is provided at the connection between the fixing portion and the first contact portion.

[0019] The technical effect of the present invention is as follows: compared with the prior art, the present invention provides a probe that, by providing an elastic member, can automatically adjust the contact force within a certain range to ensure good contact between the probe and the object being measured. By providing the first contact portion and the second contact portion, the probe can adapt to different measured surfaces, thereby expanding the application scenarios of the probe and avoiding the easy breakage of the needle shaft provided in the prior art. At the same time, by providing the elastic contraction portion to be sleeved inside the fixed portion and the elastic member to be provided inside the first shell and the second shell, the stability of the overall structure of the probe is improved, thereby increasing the service life of the probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only part of the embodiments of the present invention, rather than all of the embodiments. For ordinary technicians in this field, without paying creative work, other drawings obtained based on these drawings all fall within the scope of protection of the present invention.

[0021] Figure 1 This is a stereogram of a probe provided by an embodiment of the present utility model;

[0022] Figure 2 is an exploded view of the probe provided by the embodiment of the utility model;

[0023] Figure 3 is a perspective view of the first shell provided by the embodiment of the utility model;

[0024] Figure 4 is a perspective view of the second shell provided by the embodiment of the utility model;

[0025] Figure 5 is a perspective view of the elastic member provided by the embodiment of the utility model.

[0026] Wherein, 10 is the first shell, 11 is the fixed part, 12 is the first contact part, 121 is the first probe end, 1211 is the first probe, 1212 is the second probe, 122 is the first elastic member connecting end;

[0027] 20 is the second shell, 21 is the elastic contraction part, 22 is the second contact part, 221 is the second probe end, 2211 is the third probe, 2212 is the fourth probe, 222 is the second elastic member connecting end;

[0028] 30 is the elastic member, 31 is the volute spring, 311 is the shaft connecting end, 312 is the outer ring connecting end. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model by combining with the drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] In order to make the description of the disclosure more detailed and complete, the following describes the embodiments of the utility model and specific embodiments; But this is not the only form of implementation or use of the specific embodiments of the utility model. The embodiments include the features of multiple specific embodiments and the method steps and order used to construct and operate these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0033] In the description of the present invention, the terms "front", "rear", "top", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0034] Please refer to Figures 1-5 An embodiment of the present invention provides a probe to solve the problem that the needle shaft of the existing probe is easily broken and the existing probe is only applicable to specific objects to be measured.

[0035] For details, please refer to Figure 1 A three-dimensional diagram of a probe provided by an embodiment of the utility model, Figure 2 An exploded view of a probe provided in an embodiment of the present invention, the present invention provides a probe, comprising: a first shell 10, a second shell 20 and an elastic member 30, specifically, the first shell 10 includes a fixed portion 11 and a first contact portion 12 connected to each other, the first contact portion 12 serving as a contact point of the probe for direct contact with the object to be measured, the second shell 20 includes an elastic contraction portion 21 and a second contact portion 22 connected to each other, the elastic contraction portion 21 can slide relative to the fixed portion 11, thereby providing a telescopic function of the probe, the second contact portion 22 serving as another contact point of the probe, also for direct contact with the object to be measured, the elastic contraction portion 21 is sleeved inside the fixed portion 11, the elastic member 30 is arranged inside the first shell 10 and the second shell 20, the elastic member 30 connects the first contact portion 12 and the second contact portion 22 so that the elastic contraction portion 21 slides relative to the fixed portion 11.

[0036] In the utility model embodiment, when no external force acts, the elastic piece 30 compresses the elastic contraction part 21 of the second shell 20 on the fixed part 11 of the first shell 10, so that the whole probe is in a stable state. When the probe contacts the measured object and is subjected to pressure, the elastic contraction part 21 of the second shell 20 will slide inward relative to the fixed part 11, while compressing the elastic piece 30, ensuring that the probe can closely contact the measured object. When the external force disappears, the elastic force of the elastic piece 30 will make the elastic contraction part 21 of the second shell 20 return to the initial position, so that the probe returns to the initial state. By setting the elastic piece 30, the probe can automatically adjust the contact force within a certain range, ensuring that the probe is in good contact with the measured object, and by setting the first contact part 12 and the second contact part 22, the probe can adapt to different measured surfaces, thereby expanding the application scenarios of the probe and avoiding the breakage of the needle shaft in the prior art. At the same time, by setting the elastic contraction part 21 sleeved in the fixed part 11, and the elastic piece 30 arranged in the first shell 10 and the second shell 20, the stability of the overall structure of the probe is improved, and the service life of the probe is improved.

[0037] As a further improvement of the utility model, the first shell 10, the second shell 20 and the elastic piece 30 are integrally formed. By setting the first shell 10, the second shell 20 and the elastic piece 30 integrally formed, the complex assembly process is not needed, the production process is simplified, and the production cost of the probe is reduced. Moreover, the design that the first shell 10, the second shell 20 and the elastic piece 30 are integrally formed reduces the connecting points between the first shell 10, the second shell 20 and the elastic piece 30, thereby improving the overall structural strength. Avoid the failure caused by the loosening or breakage of the connecting point in the use process of the probe.

[0038] As a further improvement of the utility model, please see Figure 3The elastic member 30 comprises at least two spiral springs 31, the spiral spring 31 comprises an axial connecting end 311 and an outer ring connecting end 312, and adjacent two spiral springs 31 are connected through the axial connecting end 311 or the outer ring connecting end 312. The combination of multiple spiral springs 31 can provide greater elasticity and restoring force, so that the probe can recover to the initial position more quickly and effectively after being pressed, and the design of multiple spiral springs 31 can better disperse the pressure and ensure that each spring can function uniformly, thereby improving the overall stability and reliability. Each spiral spring 31 comprises an axial connecting end 311 and an outer ring connecting end 312, and adjacent two spiral springs 31 are connected through the axial connecting end 311 or the outer ring connecting end 312, that is, the connection relationship of multiple connected spiral springs 31 is that the axial connecting end 311 of the first spiral spring 31 is connected with the axial connecting end 311 of the second spiral spring 31, the outer ring connecting end 312 of the second spiral spring 31 is connected with the outer ring connecting end 312 of the third spiral spring 31, and the connection is carried out in this way. By connecting through the axial connecting end 311 or the outer ring connecting end 312, the elasticity and restoring force, durability, flexibility and stability of the probe are significantly improved.

[0039] As a further improvement of the utility model, please refer to Figure 4 The first contact part 12 comprises a first probe end 121 and a first elastic member 30 connecting end 122 formed by inwardly bending, and the first elastic member 30 connecting end 122 is connected with the outer ring connecting end 312. It should be noted that the first elastic member 30 connecting end 122 is connected with the outer ring connecting end 312, which means that the first elastic member 30 connecting end 122 is connected with the outer ring connecting end 312 of the spiral spring 31 closest to it. By arranging that the first contact part 12 comprises a first probe end 121 and a first elastic member 30 connecting end 122 formed by inwardly bending, and the first elastic member 30 connecting end 122 is connected with the outer ring connecting end 312, the inwardly bent first elastic member 30 connecting end 122 makes the entire probe structure more compact, reduces the overall size, and the first elastic member 30 connecting end 122 formed by inwardly bending is directly connected to the outer ring connecting end 312 of the spiral spring 31, thereby providing more stable mechanical connection and reducing the risk of loosening or falling off. The design of the first elastic member 30 connecting end 122 bending can better transmit and disperse force, so that the probe can uniformly transmit force to the elastic member 30 through the first elastic member 30 connecting end 122 when being pressed, thereby improving the overall performance and service life of the probe.

[0040] As a further improvement of the utility model, please refer to Figure 5The second contact part 22 comprises a second probe end 221 and a second elastic element 30 connecting end 222 formed by inwardly bending, and the second elastic element 30 connecting end 222 is connected with the outer ring connecting end 312. It should be noted that the second elastic element 30 connecting end 222 is connected with the outer ring connecting end 312, which means that the second elastic element 30 connecting end 222 is connected with the outer ring connecting end 312 of the spiral spring 31 closest to it. By arranging that the second contact part 22 comprises a second probe end 221 and a second elastic element 30 connecting end 222 formed by inwardly bending, and the second elastic element 30 connecting end 222 is connected with the outer ring connecting end 312, the second elastic element 30 connecting end 222 formed by inwardly bending makes the whole probe structure more compact, reduces the overall size, and the second elastic element 30 connecting end 222 formed by inwardly bending is directly connected to the outer ring connecting end 312 of the spiral spring 31, which provides a more stable mechanical connection and reduces the risk of loosening or falling off. The design of the second elastic element 30 connecting end 222 bending can better transmit and disperse force, ensuring that the probe can uniformly transmit force to the elastic element 30 through the second elastic element 30 connecting end 222 when under pressure, thereby improving the overall performance and service life of the probe.

[0041] As a further improvement of the utility model, the first probe end 121 comprises a first probe 1211 and a second probe 1212 arranged oppositely, and the second probe end 221 comprises a third probe 2211 and a fourth probe 2212 arranged oppositely. By arranging that the first probe end 121 comprises a first probe 1211 and a second probe 1212 arranged oppositely, and the second probe end 221 comprises a third probe 2211 and a fourth probe 2212 arranged oppositely, the first probe end 121 and the second probe end 221 are both designed as double probes, and two probes are in contact with the measured object at the same time, which can significantly improve the reliability of contact. Even if one of the probes fails to make good contact, the other probe can still ensure good electrical or mechanical connection. The double probe design can provide more stable signal transmission, reduce signal loss or interference caused by poor contact of a single probe, and two probes can share the load on each probe, thereby prolonging the service life of the probe. Since the pressure is shared by two probes, the wear of each probe will be reduced, further improving the durability of the probe. At the same time, by arranging the first probe end 121 and the second probe end 221, different shapes (such as a pointed end, a flat end, etc.) can be designed according to specific application requirements in actual application, so as to adapt to different test objects and realize measurement of a single probe on different test objects, thereby expanding the application range of the probe.

[0042] As a further improvement of the utility model, the first shell 10 is cylindrical, and the diameter of the fixed part 11 is greater than the diameter of the first contact part 12. By setting the first shell 10 as cylindrical, the externally applied force can be uniformly distributed, the local stress concentration is reduced, and the stability of the structure is improved. At the same time, the cylindrical first shell 10 realizes the compactness of the structure, so that the probe can work efficiently in a limited space. By setting the diameter of the fixed part 11 to be greater than the diameter of the first contact part 12, the fixed part 11 provides stronger mechanical support, ensuring that the probe will not easily deform or be damaged under pressure.

[0043] As a further improvement of the utility model, the second shell 20 is cylindrical, and the diameter of the elastic contraction part 21 is less than the diameter of the fixed part 11. By setting the second shell 20 as cylindrical and the diameter of the elastic contraction part 21 to be less than the diameter of the fixed part 11, the first shell 10 and the second shell 20 are matched, the elastic contraction part 21 is accommodated in the fixed part 11, and the elastic contraction part 21 can slide along the fixed part 11, thereby improving the stability of the matching structure of the elastic contraction part 21 and the fixed part 11.

[0044] As a further improvement of the utility model, an arc-shaped chamfer is arranged at the connection between the fixed part 11 and the first contact part 12. By setting the connection between the fixed part 11 and the first contact part 12 as an arc-shaped chamfer, a smooth transition between the two parts with different diameters is realized, the stress concentration points are reduced, the overall mechanical strength and durability of the probe are improved, sharp edges are prone to become the starting point of cracks, and the arc-shaped chamfer can eliminate these potential weak points. At the same time, the arc-shaped chamfer eliminates sharp edges, reduces the risk of scratches on the operator during use of the probe, and improves the safety of the probe.

[0045] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present application.

[0046] The above embodiments only express the preferred implementation of the utility model, and the description is more specific and detailed, but it should not be construed as limiting the scope of the patent application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the scope of protection of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A probe, characterized in that: include: a first housing, the first housing comprising a fixing portion and a first contact portion connected to each other; a second housing, the second housing comprising an elastic contraction portion and a second contact portion connected to each other, the elastic contraction portion being sleeved inside the fixing portion; and An elastic member is provided inside the first shell and the second shell, and the elastic member connects the first contact portion and the second contact portion so that the elastic contraction portion slides relative to the fixed portion.

2. The probe according to claim 1, wherein: The first shell, the second shell and the elastic member are integrally formed.

3. The probe according to claim 2, wherein: The elastic member includes at least two spiral springs, each of which includes an axial connecting end and an outer ring connecting end. Two adjacent spiral springs are connected via the axial connecting end or the outer ring connecting end.

4. The probe according to claim 3, wherein: The first contact portion includes a first probe end and a first elastic member connecting end bent inwardly, and the first elastic member connecting end is connected to the outer ring connecting end.

5. The probe according to claim 4, characterized in that: The second contact portion includes a second probe end and a second elastic member connecting end bent inwardly, and the second elastic member connecting end is connected to the outer ring connecting end.

6. The probe according to claim 4, characterized in that: The first probe end includes a first probe and a second probe that are arranged opposite to each other.

7. The probe according to claim 5, characterized in that: The second probe end includes a third probe and a fourth probe that are arranged opposite to each other.

8. The probe according to claim 1, wherein: The first housing is cylindrical, and the diameter of the fixing portion is larger than the diameter of the first contact portion.

9. The probe according to claim 8, characterized in that: The second shell is cylindrical, and the diameter of the elastic contraction portion is smaller than the diameter of the fixing portion.

10. The probe according to claim 8, characterized in that: An arc chamfer is provided at a connection between the fixing portion and the first contact portion.

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