Battery charging and discharging probe

Abstract

The utility model discloses a battery charge and discharge probe, which comprises at least two probes and a shell, the probes are arranged in the shell, the end parts of the probes extend out of the shell, a gap is reserved between the two probes, the length of the gap is greater than the diameter of a liquid injection port, and the shell is provided with a plurality of liquid injection ports. The distance between the two probes is larger than the diameter of the anti-explosion valve and smaller than the diameter of the sealing rubber ring. The utility model has the beneficial effects that the distance between the probes actually enables the probes to be positioned between the explosion-proof valve and the sealing rubber ring in the testing process, and the notches correspond to the liquid injection ports, so that the probes are not easy to contact with the explosion-proof valve and the liquid injection ports in the testing process, and the testing result is more accurate.

Description

Technical Field

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

[0002] For the convenience of production operation, large cylindrical batteries are produced by sealing first and then filling with liquid. After production, the battery needs to be electrically tested with a probe. Since there are liquid filling holes and explosion-proof valves on the battery cap, the probe can easily come into contact with the liquid filling holes and explosion-proof valves, causing the probe to easily have problems such as unstable current and difficulty in positioning the probe during the test. Utility Model Content

[0003] The utility model aims to provide a battery charging and discharging probe.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A battery charging and discharging probe comprises at least two probes and a shell, wherein the probes are arranged in the shell and the ends of the probes extend out of the shell, a gap is left between the two probes, the length of the gap is greater than the diameter of the liquid injection port, and the distance between the two probes is greater than the diameter of the explosion-proof valve and less than the diameter of the sealing rubber ring.

[0006] Preferably, it further comprises an inner cylinder, wherein the inner cylinder is provided with a plurality of through grooves penetrating the inner cylinder in its axial direction, wherein the through grooves are distributed in a circular array, and the probe is arranged in the through grooves and can slide in the through grooves along the diameter direction of the inner cylinder.

[0007] Preferably, a through groove along the axial direction of the inner cylinder is provided at the center of the inner cylinder, a connecting rod is arranged in the through groove, a first rotating plate is arranged at one end of the connecting rod close to the probe, and a second rotating plate is arranged at the other end of the connecting rod, and a plurality of arc grooves corresponding to the through groove are provided on the first rotating plate and the second rotating plate, and the probe passes through the arc groove.

[0008] Preferably, the length of the shell is greater than the length of the inner cylinder, and the shell is connected to the inner cylinder.

[0009] Preferably, an end cover is provided on a side of the shell away from the probe, and a wire groove for the wire to pass through is opened on the end cover.

[0010] Preferably, the probe is provided with a limiting ring located on a side opposite to the first rotating plate and the second rotating plate.

[0011] Preferably, the length of the connecting rod is greater than that of the inner tube, an annular groove is provided at one end of the shell facing the probe, and a protrusion corresponding to the annular groove is provided on the first rotating plate.

[0012] The beneficial effect of the utility model is that by rotating the first rotating plate, the probe can slide along the diameter direction of the inner cylinder under the limitation of the arc groove and the strip groove on the probe, so as to adjust the distance between the probes to adapt to batteries of different specifications, and effectively prevent the probe from contacting the explosion-proof valve, the liquid filling port, and the sealing rubber ring during the test, thereby causing the current instability in the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front sectional view of the utility model.

[0014] Figure 2 It is a side view of the inner cylinder in the utility model.

[0015] Figure 3 It is a left view of the first rotating plate in the utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the battery cap.

[0017] Figure 5 It is a schematic diagram of the probe in the utility model Figure 1 .

[0018] Figure 6 It is a schematic diagram of the probe in the utility model Figure 2 .

[0019] Figure 7 This is a schematic diagram of the probe in Example 2. Figure 1 .

[0020] Figure 8 This is a schematic diagram of the probe in Example 2. Figure 2 .

[0021] Among them: probe 10, shell 12, inner tube 14, through groove 16, through groove 18, first rotating plate 20, second rotating plate 22, connecting rod 24, arc groove 26, protrusion 28, limit ring 30, end cover 32, explosion-proof valve 34, injection port 36, sealing rubber ring 38. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiment 1: Figures 1 to 6 As shown, a battery charging and discharging probe of the utility model includes at least two probes 10 and a shell 12. The probes 10 are arranged in the shell 12 and the ends of the probes 10 extend out of the shell 12. A gap is left between the two probes 10. The length of the gap is greater than the diameter of the injection port 36. The distance between the two probes 10 is greater than the diameter of the explosion-proof valve 34 and less than the diameter of the sealing rubber ring 38.

[0024] The distance between the two probes 10 can effectively prevent the probes from contacting the sealing rubber ring 38 and the explosion-proof valve 34. The design of the gap prevents the probes 10 from contacting the injection port 36 during the test, thereby preventing current instability during the test.

[0025] The inner cylinder 14 is provided with a plurality of through slots 16 extending in the axial direction thereof. The through slots 16 are arranged in a circumferential array. The probes 10 are arranged in the through slots 16 and can slide in the through slots 16 along the diameter direction of the inner cylinder 14.

[0026] The probes 10 are slidably disposed in the through slots 16 , and the distance between the probes 10 can be adjusted according to the specifications of the battery, thereby preventing the probes 10 from contacting the explosion-proof valve 34 or the sealing rubber ring 38 .

[0027] A through groove 18 is provided at the center of the inner cylinder 14 along its axial direction, a connecting rod 24 is provided in the through groove 18, a first rotating plate 20 is provided at one end of the connecting rod 24 close to the probe, and a second rotating plate 22 is provided at the other end of the connecting rod 24, a plurality of arc grooves 26 corresponding to the through grooves 16 are provided on the first rotating plate 20 and the second rotating plate 22, and the probe 10 passes through the arc grooves 26;

[0028] By rotating the first rotating plate 20, the probe 10 slides in the radial direction of the inner cylinder 14 under the limitation of the arc groove 26 and the through groove 16, so as to adjust the distance between the probes 10. The first rotating plate 20 and the second rotating plate 22 are connected by the connecting rod 24, so that the first rotating plate 20 and the second rotating plate 22 rotate synchronously, and the two ends of the probe 10 are driven at the same time to prevent the probe 10 from tilting.

[0029] The length of the shell 12 is greater than the length of the inner tube 14, and the shell 12 is connected to the inner tube 14;

[0030] The housing 12 is longer than the inner cylinder 14 , and can protect the portion of the probe 10 that extends beyond the second rotating plate 22 .

[0031] An end cap 32 is provided on the side of the housing 12 away from the probe, and a wire groove for the wire to pass through is opened on the end cap 32;

[0032] The end cap 32 is used to protect the probe 10 to prevent foreign matter from entering the housing 12 and affecting the detection of the probe 10 .

[0033] The probe 10 is provided with a limiting ring 30 located on a side opposite to the first rotating plate 20 and the second rotating plate 22;

[0034] The limiting ring 30 is used for limiting the position to prevent the probe 10 from being displaced relative to the first rotating plate 20 and the second rotating plate 22 along the length direction thereof.

[0035] The length of the connecting rod 24 is greater than that of the inner tube 14 . An annular groove is formed at one end of the shell 12 facing the probe, and a protrusion corresponding to the annular groove is provided on the first rotating plate 20 .

[0036] The protrusion corresponds to the annular groove, and a certain friction force exists between the protrusion and the annular groove in a plug-in and pull-out manner, so that the first rotating plate 20 is not easy to rotate without the action of external force.

[0037] Working principle: When in use, two probes 10 can be designed according to different specifications of batteries. By aligning the gap between the two probes 10 with the liquid injection port 36, it can be prevented that during the test, the probe 10 contacts the liquid injection port 36 and affects the test;

[0038] A plurality of movable probes 10 may also be designed. For batteries of different specifications, the distance between the probes 10 may be adjusted to adapt to the specifications of the batteries. The specific steps are as follows: the first rotating plate 20 is pulled outward to separate the protrusion 28 from the annular groove, and then the first rotating plate 20 is rotated. The first rotating plate 20 rotates synchronously with the second rotating plate 22 through the connecting rod 24. Under the limitation of the arc groove 26 on the probe 10, the probe 10 is displaced in the through groove 16 along the diameter direction of the inner cylinder 14, thereby adjusting the distance between the probes 10 so that the diameter of the circle enclosed between the probes 10 is larger than the diameter of the explosion-proof valve 34 and smaller than the diameter of the sealing ring, thereby preventing the probe 10 from contacting the explosion-proof valve 34 or the sealing rubber ring 38. Then, the first rotating plate 20 is pressed so that the protrusion 28 is inserted into the annular groove, thereby increasing the friction force and preventing the first rotating plate 22 from rotating. The gaps between adjacent probes 10 are also larger, and it is easy to align the gaps with the injection port 36 during the test.

[0039] Embodiment 2: Figure 7 and Figure 8 As shown, for a square battery, the cross section of the probe 10 is rectangular, which can better adapt to the square battery.

[0040] 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.

[0041] 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 charging and discharging probe, characterized in that: It comprises at least two probes and a shell, wherein the probes are arranged in the shell and the ends of the probes extend out of the shell, a gap is left between the two probes, the length of the gap is greater than the diameter of the injection port, and the distance between the two probes is greater than the diameter of the explosion-proof valve and less than the diameter of the sealing rubber ring.

2. The battery charge and discharge probe according to claim 1, characterized in that: It also includes an inner cylinder, which is provided with a plurality of through grooves penetrating the inner cylinder in the axial direction. The through grooves are distributed in a circumferential array. The probe is arranged in the through grooves and can slide in the through grooves along the diameter direction of the inner cylinder.

3. The battery charge and discharge probe according to claim 2, characterized in that: A through groove along the axial direction is provided at the center of the inner cylinder, a connecting rod is arranged in the through groove, a first rotating plate is arranged at one end of the connecting rod close to the probe, and a second rotating plate is arranged at the other end of the connecting rod, and a plurality of arc grooves corresponding to the through groove are provided on the first rotating plate and the second rotating plate, and the probe passes through the arc groove.

4. The battery charge and discharge probe according to claim 2, characterized in that: The length of the shell is greater than that of the inner cylinder, and the shell is connected to the inner cylinder.

5. The battery charge and discharge probe according to claim 1, characterized in that: An end cover is arranged on one side of the shell away from the probe, and a wire groove for the wire to pass through is opened on the end cover.

6. The battery charge and discharge probe according to claim 3, characterized in that: The probe is provided with a limiting ring located on a side opposite to the first rotating plate and the second rotating plate.

7. The battery charge and discharge probe according to claim 3, characterized in that: The length of the connecting rod is greater than that of the inner cylinder. An annular groove is formed at one end of the shell facing the probe, and a protrusion corresponding to the annular groove is provided on the first rotating plate.

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