Battery test probe

Abstract

The utility model discloses a battery test probe which comprises a probe sleeve and a probe body arranged in the probe sleeve in a sliding mode, an insulating ring block is arranged on the side wall of the probe body, a fixing block is arranged on the inner circumferential wall of the probe sleeve, a spring is arranged between the fixing block and the ring block, an insulating boss is further arranged on the probe body, and the spring is arranged on the boss. A pressing block corresponding to the boss is arranged on the needle sleeve in a sliding mode in the radial direction of the needle sleeve, and the contact faces of the pressing block and the boss are inclined faces. The beneficial effects of the utility model are that the probe is designed to be telescopic, and the probe can be retracted into the probe sleeve when the probe is not used, so that the probe can be protected.

Description

Technical Field

[0001] The utility model belongs to the field of probes, and in particular relates to a battery testing probe. Background Art

[0002] A battery test probe is a device used to test battery performance, usually used to evaluate battery parameters such as resistance, voltage, and current.

[0003] However, the probe may be damaged due to excessive force or falling during use, and traditional probes are exposed and easily contaminated, which may affect the test results. Utility Model Content

[0004] The utility model aims to provide a battery testing probe.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery test probe comprises a needle sleeve and a probe slidably arranged in the needle sleeve, wherein an insulating ring block is arranged on the side wall of the probe, a fixing block is arranged on the inner peripheral wall of the needle sleeve, a spring is arranged between the fixing block and the ring block, an insulating boss is also arranged on the probe, a pressing block corresponding to the boss is slidably arranged on the needle sleeve along its radial direction, and the surfaces where the pressing block and the boss contact each other are both inclined surfaces.

[0007] Preferably, at least two mutually symmetrical fixing strips are arranged on the inner wall of the needle sleeve, a sliding groove is formed on the fixing strip, and a sliding block sliding in the sliding groove is arranged on the outer wall of the ring block.

[0008] Preferably, the probe includes a needle rod and a probe arranged at the top of the needle rod, the probe is conical and the diameter of its bottom surface is larger than the diameter of the needle rod, an electrostatic brush is arranged on the inner circumferential wall of the top of the needle sleeve, and an insulating sleeve corresponding to the electrostatic brush is arranged on the outer circumferential wall of the needle rod.

[0009] Preferably, a J-shaped through groove is provided on the side wall of the needle sleeve, and the pressing block is slidably disposed in the J-shaped groove.

[0010] Preferably, the pressing block comprises a pressing portion located outside the needle sleeve, a pressing portion located inside the needle sleeve, and a connecting rod for connecting the pressing portion and the pressing portion, and the connecting rod is slidably disposed in the J-shaped groove.

[0011] Preferably, the needle sleeve comprises a sleeve body and a sleeve top detachably arranged on the top of the sleeve body, and the electrostatic brush is arranged on the inner peripheral wall of the sleeve top.

[0012] Preferably, a wire connected to the probe is provided in the needle sleeve.

[0013] The utility model has the beneficial effects that when not in use, the probe can be retracted into the needle sleeve to protect the needle sleeve, the electrostatic brush can prevent impurities on the probe from entering the needle sleeve, and the detachable design of the sleeve top facilitates cleaning or replacement of the sleeve top. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front sectional view of the utility model.

[0015] Figure 2 It is a top view of the utility model.

[0016] Among them: needle sleeve 10, sleeve body 12, fixing bar 121, slide groove 122, fixing block 123, spring 124, through groove 125, pressing block 126, sleeve top 14, electrostatic brush 141, probe 20, needle rod 22, ring block 221, slider 222, boss 223, insulating sleeve 223, wire 224, probe 24. DETAILED DESCRIPTION

[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0018] like Figure 1 and Figure 2 As shown, a battery test probe of the utility model comprises a needle sleeve 10 and a probe 20 slidably disposed in the needle sleeve 10, at least two mutually symmetrical fixing bars 121 are disposed on the inner wall of the needle sleeve 10, a sliding groove 122 is provided on the fixing bar 121, an insulating ring block 221 is disposed on the side wall of the probe 20, a slider 222 sliding in the sliding groove 122 is disposed on the outer wall of the ring block 221, a fixing block 123 is disposed on the inner peripheral wall of the needle sleeve 10, and a spring 124 is disposed between the fixing block 123 and the ring block 221;

[0019] The spring 124 applies force to the probe 20, so that in the absence of external force, the probe 20 will slide into the needle sleeve 10, which can prevent the probe 20 from being contaminated when not in use, and can also prevent the probe 20 from being damaged due to falling, etc. The cooperation between the fixing block 123 and the slide groove 122 ensures that the probe 20 is evenly stressed when it is extended and retracted.

[0020] The probe 20 is also provided with an insulating boss 223. The needle sleeve 10 is provided with a through groove 125 that runs through the thickness direction thereof. The through groove 125 is J-shaped. A pressure block 126 is movably provided in the through groove 125. The pressure block 126 includes a connecting rod. A pressing portion corresponding to the boss 223 is provided at one end of the connecting rod located inside the needle sleeve 10. A pressing portion is provided at one end of the connecting rod located outside the needle sleeve 10. The surfaces where the pressing portion and the boss 223 contact each other are both inclined surfaces.

[0021] The boss 223 is squeezed by the pressing block 126 so that the boss 223 drives the probe 20 to slide out of the needle sleeve 10 for testing. When in use, the sliding out of the probe 20 can be achieved by pressing the pressing block 126. In this way, when the pressing block 126 is released, the probe 20 will slide back into the needle sleeve 10 under the action of the spring 124. The pressing block 126 can also be slid from the long end of the through groove 125 to the short end by sliding the pressing block 126. In this way, the probe 20 can be kept extending out of the needle sleeve 10 without having to press the pressing block 126 all the time.

[0022] The needle sleeve 10 includes a sleeve body 12 and a sleeve top 14 detachably arranged on the top of the sleeve body 12. The probe 20 includes a needle rod 22 and a probe head 24 arranged on the top of the needle rod. The probe head 24 is conical and the diameter of the bottom surface thereof is larger than the diameter of the needle rod 22. An electrostatic brush 141 is arranged on the inner peripheral wall of the sleeve top 14, and an insulating sleeve 223 corresponding to the electrostatic brush 141 is arranged on the outer peripheral wall of the needle rod 22.

[0023] When the needle rod 22 slides into the needle sleeve 10, the electrostatic brush 141 can brush off impurities on the needle rod 22 to prevent impurities and other pollution sources from entering the interior of the needle sleeve 10. The insulating sleeve 223 can prevent the electrostatic brush 141 from directly rubbing against the needle rod 22, thereby extending the service life of the needle rod 22. The detachable design of the sleeve top 14 facilitates the removal of the sleeve top 14 for cleaning or replacement.

[0024] A wire 224 connected to the probe 20 is disposed in the needle sleeve 10 ; the wire 224 is flexible and can leave space for the sliding of the probe 20 .

[0025] Working principle: When in use, the pressing block 126 can be pressed or the long end of the pressing block 126 with the through groove 125 can be slid to the short end. Both methods can make the boss 223 drive the probe 20 to move, so that the probe 24 extends out of the needle sleeve 10 for testing. After use, the pressing block 126 is slid to the long end of the through groove 125 and the pressing block 126 is released. The probe 20 will slide into the needle sleeve 10 under the action of the spring 124, so that the probe 24 slides into the sleeve top 14, which can effectively prevent the probe 24 from being damaged. At the same time, the electrostatic brush 141 will brush off the impurities on the needle rod 22 to prevent the impurities from entering the sleeve body 12 and causing pollution and damage. After the impurities are brushed off by the electrostatic brush 141, they will remain in the sleeve top 14. The sleeve top 14 is detachable for easy cleaning and replacement.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery test probe, characterized in that: It comprises a needle sleeve and a probe slidably arranged in the needle sleeve, wherein an insulating ring block is arranged on the side wall of the probe, a fixing block is arranged on the inner peripheral wall of the needle sleeve, a spring is arranged between the fixing block and the ring block, an insulating boss is also arranged on the probe, a pressing block corresponding to the boss is slidably arranged on the needle sleeve along its radial direction, and the surfaces where the pressing block and the boss contact each other are both inclined surfaces.

2. The battery test probe according to claim 1, characterized in that: At least two mutually symmetrical fixing strips are arranged on the inner wall of the needle sleeve, a sliding groove is opened on the fixing strip, and a sliding block sliding in the sliding groove is arranged on the outer wall of the ring block.

3. The battery test probe according to claim 1, characterized in that: The probe includes a needle rod and a probe arranged at the top of the needle rod. The probe is conical and the diameter of its bottom surface is larger than the diameter of the needle rod. An electrostatic brush is arranged on the inner circumferential wall of the top of the needle sleeve, and an insulating sleeve corresponding to the electrostatic brush is arranged on the outer circumferential wall of the needle rod.

4. The battery test probe according to claim 1, characterized in that: A J-shaped through groove is provided on the side wall of the needle sleeve, and the pressing block is slidably arranged in the J-shaped groove.

5. The battery test probe according to claim 4, characterized in that: The pressing block comprises a pressing portion located outside the needle sleeve, a pressing portion located inside the needle sleeve, and a connecting rod for connecting the pressing portion and the pressing portion, and the connecting rod is slidably arranged in the J-shaped groove.

6. The battery test probe according to claim 3, characterized in that: The needle sleeve comprises a sleeve body and a sleeve top detachably arranged on the top of the sleeve body, and the electrostatic brush is arranged on the inner peripheral wall of the sleeve top.

7. The battery test probe according to claim 1, characterized in that: A wire connected to the probe is arranged in the needle sleeve.

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