Probe type connector
By setting the inclined surface of the needle shaft in the probe connector and combining the first and second elastic parts, the problem of unstable conduction between the needle shaft and the inner wall of the needle tube in the prior art is solved, and a more reliable Electrical conduction effect.
Patent Information
- Application Number
- CN202420958543.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-06
AI Technical Summary
In the existing drilled probe connectors, the needle shaft and the inner wall of the needle tube cannot be effectively electrically conductive, resulting in unstable conduction, which is prone to instantaneous power outage, circuit breakage, and no signal.
A probe connector is designed, with the needle shaft arranged as an inclined surface toward the bottom of the cavity, and combined with the fit of the first and second elastic members to ensure that the needle shaft has stable contact with the inner wall of the needle seat during use.
Through the cooperation of the inclined surface of the needle shaft and the elastic member, the contact stability between the needle shaft and the needle seat is improved, the problem of instant disconnection of electrical connection is avoided, and a reliable electrical conduction effect is ensured.
Smart Images
Figure CN222463528U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connectors, in particular to a probe type connector. Background Art
[0002] The existing probe type connectors on the market are generally composed of a needle tube, an elastic member and a needle shaft. The needle tube has a cylindrical accommodating cavity and a base that closes one end of the accommodating cavity. The needle shaft is movably installed in the needle tube. The needle shaft has a connecting portion in the accommodating cavity and the needle tube, and an abutting portion extending out of the needle tube. The elastic member is accommodated in the needle tube, one end of which abuts against the base of the needle tube, and the other end abuts against the connecting portion of the needle shaft.
[0003] However, in the current drilling probe connector, a blind hole connected to the accommodating chamber of the needle tube is usually opened inside the needle shaft, and one end of the elastic member abuts against the bottom of the accommodating chamber, and the other end extends into the blind hole and abuts against the needle shaft. Since the elastic member provides a uniform circumferential force on the needle shaft in the blind hole, when the elastic member is vertically compressed in the needle tube, the needle shaft moves vertically in the accommodating chamber and loses contact with the side wall of the needle tube, resulting in unstable conduction, which is prone to instantaneous power failure, circuit breakage, and no signal, thereby affecting the normal use of the connector. Utility Model Content
[0004] The main purpose of the utility model is to provide a probe type connector, aiming to solve the problem that the needle shaft and the inner wall of the needle tube in the existing drilling type connector cannot be effectively electrically connected.
[0005] In order to achieve the above-mentioned object, the utility model provides a probe type connector, which comprises:
[0006] The needle seat has a receiving cavity with an open opening formed therein, and the receiving cavity has a cavity bottom opposite to the open opening;
[0007] A needle shaft is movably disposed in the accommodating cavity, wherein a receiving cavity communicating with the accommodating cavity is disposed in the needle shaft, and a side of the needle shaft facing the cavity bottom is an inclined surface;
[0008] A first elastic member is fixedly disposed in the accommodating cavity; and
[0009] The second elastic member is arranged inside the first elastic member, one end of the second elastic member abuts against the cavity wall of the accommodating cavity, and the other end of the second elastic member abuts against the cavity wall of the accommodating cavity.
[0010] Optionally, in an embodiment of the present invention, the angle between the inclined surface and the cavity wall of the accommodating cavity is 60°-85°.
[0011] Optionally, in one embodiment of the utility model, the needle shaft includes an abutment portion and a connecting portion fixedly connected to the abutment portion, the accommodating cavity passes through the connecting portion and the abutment portion, the connecting portion is arranged in the accommodating cavity, the abutment portion extends from the opening to the outside of the needle seat, and the inclined surface is formed on the side of the connecting portion facing away from the abutment portion.
[0012] Optionally, in an embodiment of the present invention, the abutting portion is extended along the axial direction of the connecting portion, and the outer diameter of the connecting portion is greater than the outer diameter of the abutting portion.
[0013] Optionally, in an embodiment of the present invention, an end surface of the abutting portion away from one end of the connecting portion is in a spherical shape.
[0014] Optionally, in an embodiment of the present invention, the outer diameter of the connecting portion is greater than the diameter of the opening, and the diameter of the opening is greater than the outer diameter of the abutting portion.
[0015] Optionally, in an embodiment of the present invention, a stop protrusion is provided at the edge of the opening, and the stop protrusion extends in a direction close to the needle shaft to prevent the connecting portion from extending from the opening to the outside of the needle shaft.
[0016] Optionally, in an embodiment of the present invention, the receiving cavity has a cavity top away from the first elastic member, and one end of the second elastic member abuts against the cavity bottom of the receiving cavity, and the other end of the second elastic member abuts against the cavity top of the receiving cavity.
[0017] Optionally, in an embodiment of the present utility model, the needle seat comprises:
[0018] A needle tube, the accommodating cavity is formed inside; and
[0019] The base is fixedly connected to one end of the needle tube away from the needle shaft.
[0020] Optionally, in an embodiment of the present utility model, the needle seat further comprises a conductive end, and the conductive end is fixedly arranged on a side of the base facing away from the needle tube.
[0021] Optionally, in an embodiment of the present invention, the first elastic member and / or the second elastic member is a compression spring.
[0022] Compared with the prior art, the present invention provides a technical solution in which a receiving cavity with an open opening is formed inside the needle seat, and the receiving cavity has a cavity bottom opposite to the open opening, a first elastic member is provided inside the receiving cavity, and a second elastic member is also provided inside the first elastic member; the needle shaft is movably arranged in the receiving cavity, a receiving cavity connected to the receiving cavity is provided inside the needle shaft, and one end of the second elastic member is pressed against the cavity wall of the receiving cavity, and the other end of the second elastic member is pressed against the cavity wall of the receiving cavity. In this way, when working, it is only necessary to press the needle shaft to compress the second elastic member, and after the pressing is released, the needle shaft will rebound and reset under the elastic force of the second elastic member. In the present solution, the first elastic member and the second elastic member are cooperated, and the side of the needle shaft facing the bottom of the cavity is set as an inclined surface. When working, the inclined surface of the needle shaft will abut against the end of the first elastic member and compress the first elastic member. At this time, the reaction force of the first elastic member will produce a lateral component force on the inclined surface, so that the needle shaft will produce a certain inclination during the descent process and come into contact with the inner wall of the needle seat, which greatly improves the stability of the contact between the needle shaft and the needle seat during use, avoids the problem of instantaneous disconnection of the electrical connection, and ensures a reliable electrical conduction effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 This is a schematic structural diagram of an embodiment of the probe type connector of the utility model;
[0025] Figure 2 for Figure 1 The enlarged view of point A in the middle;
[0026] Figure 3 It is a schematic structural diagram of the needle shaft in one embodiment of the probe type connector of the utility model.
[0027] Description of Figure Numbers:
[0028] Label name Label name 10 Needle Seat 220 Connection 101 Stop protrusion 221 Inclined surface 20 Needle shaft 30 The first elastic member 201 Receiving cavity 40 The second elastic member 210 Butt part
[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0034] In the current drilling probe connector, a blind hole connected to the accommodating chamber of the needle tube is usually opened inside the needle shaft, and one end of the elastic member abuts against the bottom of the accommodating chamber, and the other end extends into the blind hole and abuts against the needle shaft. Since the elastic member provides a uniform circumferential force on the needle shaft in the blind hole, when the elastic member is vertically compressed in the needle tube, the needle shaft moves vertically in the accommodating chamber and loses contact with the side wall of the needle tube, resulting in unstable conduction, which is prone to momentary power failure, circuit breakage, and no signal, thereby affecting the normal use of the connector.
[0035] Based on this, the utility model proposes a probe type connector. In this solution, the side of the needle shaft facing the bottom of the cavity is set as an inclined surface. When working, the inclined surface of the needle shaft will abut against the end of the first elastic member and compress the first elastic member. At this time, the reaction force of the first elastic member will produce a lateral component of force on the inclined surface, causing the needle shaft to tilt to a certain extent, thereby contacting the inner wall of the needle seat, greatly improving the stability of the contact between the needle shaft and the needle seat during use.
[0036] like Figure 1 - Figure 3 As shown, the probe type connector includes:
[0037] The needle seat 10 has an open accommodating cavity formed therein, and the accommodating cavity has a cavity bottom opposite to the open cavity;
[0038] The needle shaft 20 is movably disposed in the accommodating cavity. A receiving cavity 201 communicating with the accommodating cavity is disposed in the needle shaft 20, and a side of the needle shaft 20 facing the cavity bottom is an inclined surface 221;
[0039] The first elastic member 30 is fixedly disposed in the accommodating cavity;
[0040] The second elastic member 40 is disposed inside the first elastic member 30 , one end of the second elastic member 40 abuts against the cavity wall of the accommodating cavity, and the other end of the second elastic member 40 abuts against the cavity wall of the accommodating cavity 201 .
[0041] In the technical solution adopted in this embodiment, a receiving cavity with an opening is formed inside the needle seat 10, and the receiving cavity has a cavity bottom opposite to the opening, a first elastic member 30 is provided inside the receiving cavity, and a second elastic member 40 is also provided inside the first elastic member 30; the needle shaft 20 is movably arranged in the receiving cavity, a receiving cavity 201 communicating with the receiving cavity is provided inside the needle shaft 20, and one end of the second elastic member 40 is pressed against the cavity wall of the receiving cavity, and the other end of the second elastic member 40 is pressed against the cavity wall of the receiving cavity 201. In this way, when working, it is only necessary to press the needle shaft 20 to compress the second elastic member 40, and after the pressing is released, the needle shaft 20 will rebound and reset under the elastic force of the second elastic member 40. In the present solution, the first elastic member 30 and the second elastic member 40 are cooperated, and the side of the needle shaft 20 facing the cavity bottom is set as an inclined surface 221. When working, the inclined surface 221 of the needle shaft 20 will abut against the end of the first elastic member 30 and compress the first elastic member 30. At this time, the reaction force of the first elastic member 30 will produce a lateral component force on the inclined surface 221, so that the needle shaft 20 will produce a certain inclination during the descent process and come into contact with the inner wall of the needle seat 10, which greatly improves the stability of the contact between the needle shaft 20 and the needle seat 10 during use, avoids the problem of instantaneous disconnection of the electrical connection, and ensures a reliable electrical conduction effect.
[0042] Specifically, in this embodiment, the inclination angle of the inclined surface 221 on the needle shaft 20 is not specifically limited. For example, the angle between the inclined surface 221 and the inner wall of the needle seat 10 can be in the range of 10°-80°, as long as it is an angle that is conducive to the first elastic member 30 to generate a lateral force on it. In addition, there is no specific limitation on the material of the first elastic member 30 and the second elastic member 40. For example, they can be stainless steel, copper, iron-nickel alloy or non-metallic materials, as long as they can assist the needle shaft 20 and the needle seat 10 in stable conduction. It should be noted that the needle seat 10, the needle shaft 20, the first elastic member 30 and the second elastic member 40 should be conductors so that the connector can achieve good electrical contact and ensure the current transmission effect. In addition, in this solution, a through hole is provided inside the needle shaft 20 to form a receiving cavity 201, which can meet the requirements of use in small size and small space scenarios. The cooperation of the inclined surface 221 provided on the needle shaft 20 and the first elastic member 30 can effectively solve the problem that the needle shaft 20 can only move in the vertical direction under the action of the second elastic member 40, and avoid the situation where the needle shaft 20 cannot contact the needle seat 10 and cannot be electrically conductive. Of course, in other embodiments, the connector may also include a shell, which is coated on the outside of the needle seat 10 to isolate the needle seat 10 from the external structure so that no electrical interference is generated between the two. Optionally, the connector may also be provided with a connecting terminal on the outside of the needle seat 10 for electrical connection with other components; further, the connector may also include a contact member provided inside the needle seat 10 for achieving excellent contact between the needle shaft 20 and the needle seat 10.
[0043] It is worth mentioning that when the probe connector is working, it is only necessary to press the outer end of the needle shaft 20 to compress the second elastic member 40 inside the needle shaft 20 until the first elastic member 30 is compressed to abut against the inclined surface 221 of the needle shaft 20. The first elastic member 30 and the second elastic member 40 will continue to be compressed synchronously. The cooperation between the first elastic member 30 and the inclined surface 221 can apply lateral force to the needle shaft 20 to ensure its effective contact with the inside of the needle seat 10.
[0044] Alternatively, if Figure 1 As shown, in one embodiment of the present invention, the angle between the inclined surface 221 and the cavity wall of the accommodating cavity is 60°-85°, so that under the condition that the needle shaft 20 extends into the accommodating cavity for a limited length, the needle shaft 20 can be stably rotated in the accommodating cavity when the inclined surface is formed, and the problem of the needle shaft 20 hovering is avoided. The setting of the inclined surface 221 will cause the first elastic member 30 to tilt and deform due to bias under the action of external force, so that the needle shaft 20 also tilts and contacts the needle seat 10, and then the current is conducted through the needle shaft 20 and the needle seat 10.
[0045] Alternatively, if Figure 3As shown, in one embodiment of the utility model, the needle shaft 20 includes an abutment portion 210 and a connecting portion 220 fixedly connected to the abutment portion 210, and the accommodating cavity 201 passes through the connecting portion 220 and the abutment portion 210, wherein during operation, when the needle shaft 20 is compressed, the connecting portion 220 is always slid in the accommodating cavity, and the abutment portion 210 will be partially compressed into the accommodating cavity; when rebound occurs after the work is completed, the abutment portion 210 will extend from the opening to the outside of the needle seat 10, and an inclined surface 221 is formed on the side of the connecting portion 220 away from the abutment portion 210.
[0046] Alternatively, if Figure 1 and Figure 3 As shown, in one embodiment of the utility model, the abutment portion 210 is extended along the axial direction of the connecting portion 220, so that the needle shaft 20 can slide in the accommodating cavity. It can be understood that the outer diameter of the connecting portion 220 is larger than the outer diameter of the abutment portion 210, ensuring that a part of the needle shaft 20 is always not separated from the needle seat 10, thereby achieving effective electrical conduction.
[0047] Alternatively, if Figure 1 and Figure 3 As shown, in one embodiment of the present invention, the end surface of the abutment portion 210 away from the connection portion 220 is spherical. Compared with a planar structure, the spherical surface can provide a better connection between the needle shaft 20 and other conductors.
[0048] Alternatively, if Figure 1 and Figure 2 As shown, in one embodiment of the utility model, the outer diameter of the connecting portion 220 is larger than the diameter of the opening, which can prevent the connecting portion 220 from extending to the outside of the needle seat 10 during the resetting process of the needle shaft 20; and the diameter of the opening is larger than the outer diameter of the abutting portion 210, so that the process of the abutting portion 210 extending into or out of the accommodating cavity can be ensured.
[0049] Alternatively, if Figure 1 and Figure 2 As shown, in one embodiment of the utility model, a stop protrusion 101 is provided at the edge of the opening, and the stop protrusion 101 extends in the direction close to the needle shaft 20, so that the stop protrusion 101 can abut against the connection between the connecting portion 220 and the abutting portion 210, effectively blocking the connecting portion 220 from extending from the opening to the outside of the needle shaft 20, preventing the needle shaft 20 and the needle seat 10 from losing contact and causing power failure.
[0050] Alternatively, if Figure 1As shown, in one embodiment of the utility model, the accommodating cavity 201 has a cavity top away from the first elastic member 30, and one end of the second elastic member 40 abuts against the cavity bottom of the accommodating cavity, and the other end of the second elastic member 40 abuts against the cavity top of the accommodating cavity 201. In this way, under the action of the second elastic member 40, the needle shaft 20 can be effectively reset.
[0051] Optionally, in an embodiment of the present utility model, the needle seat 10 comprises:
[0052] A needle tube having an accommodating cavity formed therein; and
[0053] The base is fixedly connected to an end of the needle tube away from the needle shaft 20 .
[0054] Specifically, in this embodiment, the base is disposed at one end of the needle tube away from the needle shaft 20, and one end of the needle tube can be closed to facilitate fixing the first elastic member 30 and the second elastic member 40 in the accommodating cavity.
[0055] Optionally, in one embodiment of the utility model, the needle seat 10 also includes a conductive end, which is fixed on the side of the base away from the needle tube. By arranging the conductive end on the base, the connector can be easily electrically connected to other structures, thereby achieving the effect of double-end electrical conduction.
[0056] Optionally, in an embodiment of the present invention, the first elastic member 30 and / or the second elastic member 40 is a compression spring, and the use of the compression spring can effectively achieve stable electrical connection and reset of the needle shaft 20. When the connector is in a non-working state, the compression spring is in a normal state, and when the connector is in a working state, the compression spring is in a compressed state.
[0057] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A probe type connector, characterized in that: The probe type connector comprises: The needle seat has a receiving cavity with an open opening formed therein, and the receiving cavity has a cavity bottom opposite to the open opening; A needle shaft is movably disposed in the accommodating cavity, wherein a receiving cavity communicating with the accommodating cavity is disposed in the needle shaft, and a side of the needle shaft facing the cavity bottom is an inclined surface; A first elastic member is fixedly disposed in the accommodating cavity; and The second elastic member is arranged inside the first elastic member, one end of the second elastic member abuts against the cavity wall of the accommodating cavity, and the other end of the second elastic member abuts against the cavity wall of the accommodating cavity.
2. The probe type connector according to claim 1, wherein: The included angle between the inclined surface and the cavity wall of the accommodating cavity is 60°-85°.
3. The probe type connector according to claim 1, wherein: The needle shaft includes an abutment portion and a connecting portion fixedly connected to the abutment portion, the accommodating cavity passes through the connecting portion and the abutment portion, the connecting portion is arranged in the accommodating cavity, the abutment portion extends from the opening to the outside of the needle seat, and the side of the connecting portion away from the abutment portion forms the inclined surface.
4. The probe type connector according to claim 3, characterized in that: The abutment portion is extended along the axial direction of the connection portion, and the outer diameter of the connection portion is greater than the outer diameter of the abutment portion; and / or, The end surface of the abutting portion away from one end of the connecting portion is in a spherical shape.
5. The probe type connector according to claim 3, characterized in that: The outer diameter of the connecting portion is larger than the diameter of the opening, and the diameter of the opening is larger than the outer diameter of the abutting portion.
6. The probe type connector according to claim 5, characterized in that: A stop protrusion is provided at the edge of the opening, and the stop protrusion extends toward the direction close to the needle shaft to prevent the connecting part from extending from the opening to the outside of the needle shaft.
7. The probe type connector according to claim 1, wherein: The receiving cavity has a cavity top away from the first elastic member, one end of the second elastic member abuts against the cavity bottom of the receiving cavity, and the other end of the second elastic member abuts against the cavity top of the receiving cavity.
8. The probe type connector according to claim 1, wherein: The needle seat comprises: A needle tube, the accommodating cavity is formed inside thereof; and The base is fixedly connected to one end of the needle tube away from the needle shaft.
9. The probe type connector according to claim 8, characterized in that: The needle seat also includes a conductive end, and the conductive end is fixedly arranged on a side of the base away from the needle tube.
10. The probe type connector according to any one of claims 1 to 9, characterized in that: The first elastic member and / or the second elastic member is a compression spring.