A needle protection cover for a probe and a method of using the same

Abstract

The present invention relates to a needle protection cover for a probe and a method for using the same, wherein the needle protection cover for a probe is clamped on a current needle rod and is used to protect the current needle. A receiving portion is provided on the top of the current needle rod, and the current needle to be protected is arranged in the receiving portion. An axial through hole for inserting a voltage needle is provided on the current needle to be protected, including: a protective surface that completely covers the current needle, the protective surface abuts against the current needle; a first limiter is provided at the bottom of the protective surface; and a mounting hole that matches the axial through hole is provided on the protective surface, so that the voltage needle can pass through the protective surface into the axial through hole. The needle protection cover for a probe of the present invention has a mounting hole on its protective surface, so that the voltage needle can pass through the protective surface into the axial through hole, ensuring that the voltage needle can be normally assembled after the needle protection cover is assembled on the needle, thereby improving the convenience during installation.

Description

Technical Field

[0001] The invention relates to the technical field of needle protection covers, in particular to a needle protection cover of a probe and a use method thereof. Background Art

[0002] After the probe is produced, it is usually necessary to protect the needle tip of the probe with a protective cover to prevent it from being worn during transportation.

[0003] The existing protective cover is usually assembled with the needle after the probe is produced and before it is stacked and packed. During the production process, the needle is still likely to be worn and scratched, resulting in a reduced protection rate of the existing protective cover for the needle.

[0004] The patent with authorization announcement number CN208953588U discloses a new type of probe, including an end fixing seat, a current needle rod, a current needle head and a voltage needle, characterized in that: a current needle rod is installed on the upper side of the current needle head, a spring is sleeved on the outer side of the current needle rod, a plastic seat is installed on the upper end of the current needle rod, a wire ear is installed on the upper side of the plastic seat, an end fixing seat is installed on the upper side of the wire ear, two voltage needles are provided, the voltage needle passes through the end fixing seat, the wire ear, the plastic seat, the current needle rod and the current needle head in sequence, and a copper screw is threadedly connected to the tip of the voltage needle, and one end of the voltage needle is interference fit with the current needle head.

[0005] The technical problem raised is: the probe is the contact medium of electrical testing and is a high-end precision electronic hardware component. The probe is used to test PCBA in electronic current testing. For lithium-powered batteries, formation, capacity and OCV tests are required before the battery cell is produced. Among them, the formation test equipment requires a lot of probes to connect the tabs of the battery cell. At present, large current needles are generally processed with beryllium copper, which is a rare metal with a high price, which is not conducive to industrial production. The probe installation is complicated and inconvenient to use.

[0006] The technical solution proposed is: a copper screw is threadedly connected to the tip of the voltage needle, the beryllium copper needle tip is the mechanical contact part, the current needle rod adopts a red copper structure, and the current needle head adopts a high-hardness copper alloy, which can save costs, optimize the processing technology, and is conducive to industrial production, optimize the structure, and is easy to install. A voltage needle jack is opened on the upper side of the end fixing seat, and there are two voltage needle jacks, which is convenient for fixing the upper end of the voltage needle. The current needle head and the current needle rod are connected by internal or external threads, which is convenient for connecting and fixing the current needle head and the current needle. However, there is still a problem that the current needle head cannot be protected by the protective cover after the current needle rod is assembled and before the probe is assembled as a whole. Summary of the invention

[0007] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the needle protection cover is assembled with the needle after the probe is produced, and the needle is easily damaged during the production process, and to provide a needle protection cover for a probe with a high protection rate and a method of using the same.

[0008] In order to solve the above technical problems, the present invention provides a needle protection sleeve of a probe, which is clamped on the current needle rod and used to protect the current needle. The top of the current needle rod is provided with a receiving portion, and the current needle to be protected is arranged in the receiving portion. The current needle to be protected is provided with an axial through hole for inserting a voltage needle, including:

[0009] A protective surface completely covering the current needle, the protective surface abutting against the current needle;

[0010] A first stopper is provided at the bottom of the protection surface, and the first stopper is arranged around the side of the current needle head;

[0011] The protective surface is provided with a mounting hole matched with the axial through hole, so that the voltage needle can pass through the protective surface into the axial through hole.

[0012] As a further improvement of the present invention, the first limiting member includes two limiting parts spaced apart from each other, both limiting parts are connected to the bottom of the protection surface, and the limiting parts are in contact with the side surfaces of the current needle.

[0013] As a further improvement of the present invention, a wear-resistant part is also sleeved on the current needle rod, and platform surfaces are provided on both sides of the part of the wear-resistant part wrapping the receiving part, and a recessed part recessed toward the protective surface is provided in the middle section of the limiting part.

[0014] As a further improvement of the present invention, a first extension portion is connected below the limiting portion, the first extension portion extends to the lower edge of the receiving portion, and a second extension portion extending inwardly is provided at the bottom end of the first extension portion, the second extension portion abuts against the receiving portion.

[0015] In order to solve the above technical problems, the present invention also provides a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprising the following steps:

[0016] S11: Assemble the current needle head and the current needle rod;

[0017] S12: Covering the current needle with the protective surface to protect the current needle;

[0018] S13: Pass the voltage pin through the mounting hole on the protective surface.

[0019] In order to solve the above technical problems, the present invention also provides a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprising the following steps:

[0020] S21: Assembling the current needle head and the current needle rod;

[0021] S22: Covering the current needle with the protective surface to protect the current needle;

[0022] S23: Pass the voltage pin through the mounting hole on the protective surface.

[0023] As a further improvement of the present invention, the S22 includes:

[0024] S221: Covering the current needle with the protective surface to protect the current needle;

[0025] S222: Rotate the protective surface so that the recessed portion of the first limiting member rotates to the platform surface.

[0026] In order to solve the above technical problems, the present invention also provides a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprising the following steps:

[0027] S31: Assembling the current needle head and the current needle rod;

[0028] S32: Covering the current needle with the protective surface to protect the current needle;

[0029] S33: Pass the voltage pin through the mounting hole on the protective surface.

[0030] As a further improvement of the present invention, the S32 includes:

[0031] S321: Covering the current needle with the protective surface to protect the current needle;

[0032] S322: Wrap the receiving portion of the current needle rod with the first extending portion, and clamp the second extending portion on the bottom of the receiving portion.

[0033] The above technical solution of the present invention has the following advantages compared with the prior art:

[0034] A needle protection cover of a probe of the present invention has a mounting hole on its protection surface, so that the voltage needle can pass through the protection surface into the axial through hole, ensuring that the voltage needle can be normally assembled after the needle protection cover is assembled on the needle, thereby improving the convenience during installation.

[0035] The present invention provides a method for using a needle protection cover of a probe. After the current needle and the current needle rod are assembled, the protection surface is covered on the current needle to protect the current needle without affecting the passage of the voltage needle. Thus, the current needle is protected as soon as it is processed and assembled, thereby improving the protection rate without affecting subsequent processing and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0037] Figure 1 It is a schematic structural diagram of a needle protection cover of a probe in a preferred embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the connection structure between the needle protection cover and the current needle in the preferred embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram of the connection structure of the needle protection cover, the current needle and the wear-resistant part in the preferred embodiment of the present invention;

[0040] Figure 4 It is a schematic diagram of the connection structure of the needle protection cover, the current needle rod, the current needle and the wear-resistant part in the preferred embodiment of the present invention;

[0041] Figure 5 is a flow chart of a method for using the needle protection cover of the probe in the first embodiment of the present invention;

[0042] Figure 6 is a flow chart of a method for using the needle protection cover of the probe in the second embodiment of the present invention;

[0043] Figure 7 It is a flow chart of the method for using the needle protection cover of the probe in the third embodiment of the present invention.

[0044] Explanation of the reference numerals in the specification: 1. current needle rod; 2. current needle head; 3. protective surface; 4. first limit member; 401. limit portion; 402. recessed portion; 403. first extension portion; 404. second extension portion; 5. mounting hole; 6. wear-resistant part. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0046] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used are for illustrative purposes only and do not represent the only implementation method.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to restrict the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] The terms “first”, “second”, “third” and the like in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0049] In some embodiments, reference Figure 1-Figure 4 As shown, a needle protection sleeve of a probe of the present invention is clamped on a current needle rod 1 and used to protect a current needle 2. A receiving portion is provided on the top of the current needle rod 1, and the current needle 2 to be protected is arranged in the receiving portion. An axial through hole for inserting a voltage needle is provided on the current needle 2 to be protected, comprising:

[0050] A protective surface 3 completely covers the current needle 2, the protective surface 3 abuts against the current needle 2;

[0051] A first stopper 4 is provided at the bottom of the protection surface 3, and the first stopper 4 is provided around the side surface of the current needle 2;

[0052] The protective surface 3 is provided with a mounting hole 5 matched with the axial through hole, so that the voltage needle can pass through the protective surface 3 into the axial through hole.

[0053] After the current needle 2 and the current needle rod 1 are assembled, the current needle 2 is protected by the protective surface 3. At the same time, the voltage needle is installed through the mounting hole 5, so that after the protective surface 3 and the current needle 2 are assembled to form protection, the subsequent installation of the voltage needle is not affected, thereby improving the protection rate.

[0054] In some embodiments, reference Figure 1 and Figure 2As shown, the first stopper 4 includes two stoppers 401 spaced apart from each other, both stoppers 401 are connected to the bottom of the protection surface 3, and the stoppers 401 are in contact with the side of the current needle 2. The two stoppers 401 spaced apart can reduce the material of the first stopper 4 while ensuring the limit, thereby saving costs.

[0055] In some embodiments, reference Figure 2 and Figure 3 As shown, the current needle rod 1 is also sleeved with a wear-resistant part 6, and both sides of the part of the wear-resistant part 6 that wraps the receiving part are provided with a platform surface, and the middle section of the limiting part 401 is provided with a recessed part 402 that is recessed toward the protective surface 3. The wear-resistant part 6 needs to be locked by a wrench, and by providing the recessed part 402 and matching it with the platform surface, the platform surface is exposed, so that the wrench can easily lock the wear-resistant part 6 through the platform surface.

[0056] In some embodiments, reference Figure 2 and Figure 3 As shown, the lower part of the limiting part 401 is also connected with a first extension part 403, the first extension part 403 extends to the lower edge of the receiving part, and the bottom end of the first extension part 403 is also provided with a second extension part 404 extending inward, and the second extension part 404 abuts against the receiving part. The first extension part 403 can extend to the lower edge of the receiving part, thereby increasing the longitudinal contact area between the first limiting part 4 and the receiving part, and improving the stability of the protective cover after being wrapped. Finally, the second extension part 404 abuts against the bottom of the receiving part to lock the protective surface 3 on the current needle head 2.

[0057] Embodiment 1:

[0058] Reference Figure 5 As shown, a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprises the following steps:

[0059] S11: Assembling the current needle head 2 and the current needle rod 1;

[0060] S12: Covering the current needle 2 with the protective surface 3 to protect the current needle 2;

[0061] S13: Pass the voltage needle through the mounting hole 5 on the protective surface 3.

[0062] After the current needle 2 and the current needle rod 1 are assembled, the current needle 2 is covered by the protective surface 3 to protect the current needle 2. At the same time, the subsequent installation of the voltage needle can be completed through the installation hole 5, so that the current needle 2 is immediately protected after it is produced and assembled, thereby improving the protection rate.

[0063] Embodiment 2:

[0064] Reference Figure 6 As shown, a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprises the following steps:

[0065] S21: Assembling the current needle head 2 and the current needle rod 1;

[0066] S22: Covering the current needle 2 with the protection surface 3 to protect the current needle 2;

[0067] S23: Pass the voltage needle through the mounting hole 5 on the protective surface 3.

[0068] Among them, refer to Figure 1 As shown, S22 includes:

[0069] S221: Covering the current needle 2 with the protection surface 3 to protect the current needle 2;

[0070] S222: Rotate the protection surface 3 to rotate the recessed portion 402 of the first limiting member 4 to the platform surface.

[0071] Compared with the first embodiment, in the second embodiment, after the protective surface 3 covers the current needle 2, the protective surface 3 is rotated so that the recessed portion 402 of the first limiter 4 is rotated to the platform surface, thereby facilitating the wrench to lock the wear-resistant part 6 through the platform surface.

[0072] Embodiment three:

[0073] Reference Figure 7 As shown, a method for using a needle protection cover of a probe, which is used to use the needle protection cover of the probe, comprises the following steps:

[0074] S31: Assembling the current needle head 2 and the current needle rod 1;

[0075] S32: Covering the current needle 2 with the protection surface 3 to protect the current needle 2;

[0076] S33: Pass the voltage needle through the mounting hole 5 on the protective surface 3.

[0077] Among them, refer to Figure 1 As shown, S32 includes:

[0078] S321: Covering the current needle 2 with the protection surface 3 to protect the current needle 2;

[0079] S322: Wrap the first extension part 403 around the receiving part of the current needle rod 1, and clamp the second extension part 404 on the bottom of the receiving part.

[0080] Compared with the first embodiment, in the third embodiment, after the protective surface 3 covers the current needle head 2, the first extension part 403 wraps the receiving part of the current needle rod 1, and the second extension part 404 is clamped with the bottom of the receiving part to form a limit with the protective surface 3 to improve the stability of the protective cover after assembly.

[0081] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A needle protection sleeve of a probe, which is clamped on a current needle rod and used to protect the current needle, a receiving portion is provided on the top of the current needle rod, the current needle to be protected is arranged in the receiving portion, and an axial through hole for inserting a voltage needle is provided on the current needle to be protected, characterized in that: include: A protective surface completely covering the current needle, the protective surface abutting against the current needle; A first stopper is provided at the bottom of the protection surface, and the first stopper is arranged around the side of the current needle head; The protective surface is provided with a mounting hole matched with the axial through hole, so that the voltage needle can pass through the protective surface into the axial through hole.

2. A probe needle protection cover according to claim 1, characterized in that: The first limiting member includes two limiting parts spaced apart from each other, both limiting parts are connected to the bottom of the protection surface, and the limiting parts are in contact with the side surfaces of the current needle.

3. The needle protection cover of a probe according to claim 2, characterized in that: The current needle rod is also sleeved with a wear-resistant part, and both sides of the part of the wear-resistant part wrapping the receiving part are provided with platform surfaces, and the middle section of the limiting part is provided with a recessed part recessed toward the protective surface.

4. The needle protection cover of a probe according to claim 2, characterized in that: A first extending portion is also connected below the limiting portion, and the first extending portion extends to the lower edge of the receiving portion. A second extending portion extending inward is also provided at the bottom end of the first extending portion, and the second extending portion abuts against the receiving portion.

5. A method for using a needle protection cover of a probe, for using the needle protection cover of a probe according to any one of claims 1 to 2, characterized in that: The following steps are involved: S11: Assemble the current needle head and the current needle rod; S12: Covering the current needle with the protective surface to protect the current needle; S13: Pass the voltage pin through the mounting hole on the protective surface.

6. A method for using a probe needle protection cover, for using the probe needle protection cover according to claim 3, characterized in that: The following steps are involved: S21: Assembling the current needle head and the current needle rod; S22: Covering the current needle with the protective surface to protect the current needle; S23: Pass the voltage pin through the mounting hole on the protective surface.

7. The method for using the needle protection cover of a probe according to claim 6, characterized in that: The S22 includes: S221: Covering the current needle with the protective surface to protect the current needle; S222: Rotate the protective surface so that the recessed portion of the first limiting member rotates to the platform surface.

8. A method for using a probe needle protection cover, for using the probe needle protection cover according to claim 4, characterized in that: The following steps are involved: S31: Assembling the current needle head and the current needle rod; S32: Covering the current needle with the protective surface to protect the current needle; S33: Pass the voltage pin through the mounting hole on the protective surface.

9. The method for using a needle protection cover of a probe according to claim 8, characterized in that: The S32 includes: S321: Covering the current needle with the protective surface to protect the current needle; S322: Wrap the receiving portion of the current needle rod with the first extending portion, and clamp the second extending portion on the bottom of the receiving portion.

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