Battery positive and negative electrode electric signal detection device with probe switching structure

Abstract

The invention discloses a battery positive and negative electrode electric signal detection device with a probe switching structure, which comprises a test cabinet, a three-dimensional moving mechanism is fixedly mounted in the test cabinet, a probe control mechanism is mounted on the three-dimensional moving mechanism, and a battery positioning mechanism is fixedly mounted in the test cabinet; the three-dimensional moving mechanism comprises an X-axis electric guide rail, a Y-axis electric guide rail and a Z-axis electric guide rail, wherein the X-axis electric guide rail is fixedly installed inside the test cabinet. According to the invention, the probes for battery positive and negative electrode electric signal detection can be rapidly subjected to category replacement, so that high-efficiency multi-directional detection work is facilitated, a probe connection interface is optimized, the problems of strain and falling of a joint part or a wire caused by repeated switching of the probes are avoided, the detection accuracy is improved, and the service life is prolonged. And the detection work of battery packs or large-batch batteries is satisfied.

Description

Technical Field

[0001] The present invention relates to the field of battery pole piece detection equipment, and more specifically, to a battery positive and negative pole electrical signal detection device with a switching probe structure. Background Art

[0002] The purpose of testing the positive and negative electrical signals of the battery is to ensure the normal operation and safe use of the battery. Here are some reasons: Confirm the battery polarity: By detecting the positive and negative electrical signals of the battery, you can confirm whether the polarity of the battery is correct. Incorrect connection of the positive and negative poles of the battery may cause circuit failure, equipment damage or even safety accidents; Determine the battery status: The detection of the positive and negative electrical signals of the battery can help determine whether the battery is working properly. For example, if the battery polarity is correct but the signal is weak, it may mean that the battery power is low or the battery life is nearing the end; Prevent battery problems: By regularly testing the positive and negative electrical signals of the battery, you can promptly detect battery problems and take necessary measures, such as replacing the battery, to avoid power shortages or battery failures at critical moments; Improve battery safety: The detection of the positive and negative electrical signals of the battery can also help improve the safety of the battery. Through timely detection and early warning, any abnormalities between the positive and negative poles of the battery, such as short circuits, cross-connections, etc., can be detected, thereby avoiding potential safety risks such as fire and explosion.

[0003] Among them, the positive and negative pole detection of the positive and negative electrical signals of the battery and the battery information detection often need to use probes of different detectors for detection respectively. Therefore, in order to comprehensively detect the positive and negative electrical signals of the battery, it is often necessary to frequently change the type of probe for detection. At present, most of the probes are independent, which makes the switching steps too cumbersome. The common rotary switching mechanism also has problems such as winding, loose joints, and falling off, which affects the detection efficiency of battery packs or large quantities of batteries. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a battery positive and negative electrode electrical signal detection device with a switching probe structure.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A battery positive and negative electrode electrical signal detection device with a switching probe structure comprises a test cabinet, a three-dimensional moving mechanism is fixedly installed inside the test cabinet, a probe control mechanism is installed on the three-dimensional moving mechanism, and a battery positioning mechanism is fixedly installed inside the test cabinet;

[0007] The three-dimensional moving mechanism includes an X-axis electric guide rail, a Y-axis electric guide rail and a Z-axis electric guide rail, wherein the X-axis electric guide rail is fixedly installed inside the test cabinet, the Y-axis electric guide rail is installed on the X-axis electric guide rail, the Z-axis electric guide rail is installed on the Y-axis electric guide rail, and the probe control mechanism is installed on the Z-axis electric guide rail;

[0008] The probe control mechanism comprises a lifting mount installed on the Z-axis electric guide rail, a low-friction sliding guide rail and a pressure sensor are fixedly installed on the lifting mount, a clamping device is slidably installed on the low-friction sliding guide rail, a probe conversion device is installed on the clamping device, and a detection head is installed at the bottom of the probe conversion device;

[0009] The probe conversion device includes a mounting seat fixedly mounted on the clamping device, a converter is rotatably mounted on the bottom of the mounting seat, a reduction motor is fixedly mounted on the mounting seat, the output shaft of the reduction motor passes through the mounting seat and is fixedly connected to the converter, wherein the detection head is fixedly mounted on the bottom of the converter, the mounting seat is equipped with two detection interfaces, the top of the converter is provided with two annular grooves, the inside of the two annular grooves are fixedly mounted with copper rings, the bottom of the mounting seat is fixedly mounted with two metal blocks electrically connected to the detection interface, the two metal blocks are respectively located on the inner sides of the two annular grooves and are in smooth contact with the copper rings, and the detection head is connected to the copper ring through a wire;

[0010] The battery positioning mechanism comprises a pole piece groove positioning plate fixedly mounted on the test cabinet, and a positioning groove is formed on the pole piece groove positioning plate.

[0011] As a further description of the above technical solution:

[0012] A support is fixedly mounted on the lifting mounting seat by bolts, the pressure sensor is fixedly mounted on the bottom of the support, a compression spring is fixedly mounted on the support, and the bottom end of the compression spring is in contact with the clamping device.

[0013] As a further description of the above technical solution:

[0014] The clamping device includes a sliding seat, which is slidably mounted on a low-friction sliding guide rail. A clamping block is fixedly mounted on the sliding seat by bolts. The probe conversion device is installed between the sliding seat and the clamping block. The top of the sliding seat contacts the compression spring.

[0015] As a further description of the above technical solution:

[0016] The detection head comprises an analog probe, an oscilloscope probe and a pole piece detection probe, and the analog probe, the oscilloscope probe and the pole piece detection probe are all installed at the bottom of the converter.

[0017] As a further description of the above technical solution:

[0018] The oscilloscope probe and the pole piece detection probe are respectively connected to the two copper rings through wires.

[0019] As a further description of the above technical solution:

[0020] The cross-sectional shape of the annular groove is L-shaped, the copper ring is fixedly mounted on the inner top wall of the annular groove, and the shape of the metal block matches the cross-sectional shape of the annular groove.

[0021] As a further description of the above technical solution:

[0022] A protrusion is integrally formed on the bottom of the copper ring, and the position of the protrusion on the copper ring corresponds to the position of the copper ring connected to an oscilloscope probe or a pole piece detection probe.

[0023] As a further description of the above technical solution:

[0024] The bottom of the converter is integrally formed with three additional rings, which are respectively sleeved on the analog probe, the oscilloscope probe and the pole piece detection probe. The upper thread of the additional ring is connected with a support sleeve, a telescopic rod is clamped on the support sleeve, and the additional probe is fixedly installed on the support sleeve.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] This solution can quickly replace the types of probes for detecting the positive and negative electrical signals of the battery to facilitate efficient and multi-directional detection, and optimize the probe connection interface to avoid strain and falling off of the connectors or wires caused by multiple probe switching, thereby improving detection accuracy and service life, and meeting the detection work of battery packs or large quantities of batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the battery positioning mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the side cross-sectional structure of the probe conversion device of the present invention;

[0031] Figure 5 For the present invention Figure 4 The enlarged structural diagram of the middle A part;

[0032] Figure 6It is a schematic diagram of the reverse structural view of the converter of the present invention;

[0033] Figure 7 It is a schematic diagram of the reverse structural view of the copper ring of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the clamping device of the present invention;

[0035] Fig. 9 It is a schematic diagram of the split structure of the support sleeve and the telescopic rod of the present invention.

[0036] Description of the numbers in the figure:

[0037] 100, test cabinet; 200, three-dimensional moving mechanism; 210, X-axis electric guide rail; 220, Y-axis electric guide rail; 230, Z-axis electric guide rail; 300, probe control mechanism; 310, lifting mount; 311, support; 312, compression spring; 320, low-friction sliding guide rail; 330, pressure sensor; 340, clamping device; 341, sliding seat; 342, clamping block; 350, probe conversion device; 351, mounting seat ; 352, converter; 353, reduction motor; 354, detection interface; 355, annular groove; 356, copper ring; 357, metal block; 360, detection head; 361, analog probe; 362, oscilloscope probe; 363, pole piece detection probe; 400, battery positioning mechanism; 410, pole piece groove positioning plate; 420, positioning groove; 500, additional ring; 501, support sleeve; 502, telescopic rod; 503, additional probe. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention;

[0039] See also Figure 1-9 , the present invention provides the following embodiments:

[0040] A battery positive and negative electrode electrical signal detection device with a switching probe structure includes a test cabinet 100, a three-dimensional moving mechanism 200 is fixedly installed inside the test cabinet 100, a probe control mechanism 300 is installed on the three-dimensional moving mechanism 200, and a battery positioning mechanism 400 is fixedly installed inside the test cabinet 100;

[0041] The three-dimensional moving mechanism 200 includes an X-axis electric guide rail 210, a Y-axis electric guide rail 220 and a Z-axis electric guide rail 230, wherein the X-axis electric guide rail 210 is fixedly installed inside the test cabinet 100, the Y-axis electric guide rail 220 is installed on the X-axis electric guide rail 210, the Z-axis electric guide rail 230 is installed on the Y-axis electric guide rail 220, and the probe control mechanism 300 is installed on the Z-axis electric guide rail 230;

[0042] The X-axis electric guide rail 210, the Y-axis electric guide rail 220 and the Z-axis electric guide rail 230 provide drive for the movement of the probe control mechanism 300, so as to facilitate the precise control of the probe position. When testing a single battery or a battery pack, it is convenient to move the probe to the top of the positive and negative electrodes of the corresponding battery and dock with the electrode piece for testing;

[0043] The probe control mechanism 300 includes a lifting mount 310 mounted on the Z-axis electric guide rail 230, a low-friction sliding guide rail 320 and a pressure sensor 330 are fixedly mounted on the lifting mount 310, a clamping device 340 is slidably mounted on the low-friction sliding guide rail 320, a probe conversion device 350 is mounted on the clamping device 340, and a detection head 360 is mounted at the bottom of the probe conversion device 350;

[0044] The low-friction sliding guide rail 320 on the lifting mounting seat 310 is conveniently used to drive the clamping device 340 to rise and fall, so that the detection head 360 installed on the clamping device 340 can be docked with the positive and negative electrodes of the battery. During the docking process, the pressure sensor 330 monitors the pressure of the probe on the battery pole piece in real time, so that the detection personnel can control the detection device according to the monitored pressure reading to avoid excessive pressure causing the probe to bend and damage or the battery pole piece to be perforated and damaged;

[0045] The probe conversion device 350 includes a mounting seat 351 fixedly mounted on the clamping device 340, a converter 352 is rotatably mounted on the bottom of the mounting seat 351, a reduction motor 353 is fixedly mounted on the mounting seat 351, and the output shaft of the reduction motor 353 passes through the mounting seat 351 and is fixedly connected to the converter 352, wherein the detection head 360 is fixedly mounted on the bottom of the converter 352, the mounting seat 351 is equipped with two detection interfaces 354, the top of the converter 352 is provided with two annular grooves 355, and the insides of the two annular grooves 355 are fixedly installed with copper rings 356, and the mounting seat 351 is fixedly mounted with a plurality of detection interfaces 354. Two metal blocks 357 electrically connected to the detection interface 354 are fixedly installed at the bottom of the converter 352. The two metal blocks 357 are respectively located on the inner sides of the two annular grooves 355 and in smooth contact with the copper ring 356. The detection head 360 is connected to the copper ring 356 through a wire; the detection head 360 includes an analog probe 361, an oscilloscope probe 362 and a pole piece detection probe 363, and the analog probe 361, the oscilloscope probe 362 and the pole piece detection probe 363 are all installed at the bottom of the converter 352; the oscilloscope probe 362 and the pole piece detection probe 363 are respectively connected to the two copper rings 356 through wires;

[0046] Due to the need to detect the positive and negative pole signals of the battery, a variety of probes may be used for docking detection. When the reduction motor 353 is powered on, it can drive the converter 352 at the bottom of the mounting seat 351 to rotate, and then select a suitable detection head 360 to move vertically downward. The oscilloscope probe 362 and the pole piece detection probe 363 both need to be connected to the detection equipment to provide detection data, and are connected to the corresponding detection machine in the test cabinet 100 through the detection interface 354, copper ring 356, metal block 357 and wires. The connecting wire between the detection interface 354 and the detection machine will not twist with the rotation of the converter 352, thereby ensuring the stability of the connection between the detection interface 354 and the joint part. At the same time, the stable joint and wire can reduce twisting, avoid poor contact problems, improve detection accuracy, and increase its service life. In addition, the rapid switching structure of this probe improves detection efficiency when using different probes for detection to meet the detection of battery packs or large quantities of batteries.

[0047] The battery positioning mechanism 400 includes a pole piece groove positioning plate 410 fixedly mounted on the test cabinet 100 , and a positioning groove 420 is formed on the pole piece groove positioning plate 410 .

[0048] By placing the battery on the pole piece groove positioning plate 410, the battery is confined to the inner side of the positioning groove 420 on the pole piece groove positioning plate 410, thereby maintaining the stability of the battery during the detection process and improving the accuracy of the detection of the positive and negative electrical signals of the battery.

[0049] The lifting mounting seat 310 is fixedly mounted with a support 311 by bolts, the pressure sensor 330 is fixedly mounted on the bottom of the support 311, and a compression spring 312 is fixedly mounted on the support 311, and the bottom end of the compression spring 312 is in contact with the clamping device 340;

[0050] The clamping device 340 includes a sliding seat 341, which is slidably mounted on the low-friction sliding guide rail 320, and a clamping block 342 is fixedly mounted on the sliding seat 341 by bolts. The probe conversion device 350 is installed between the sliding seat 341 and the clamping block 342, and the top of the sliding seat 341 contacts the compression spring 312;

[0051] The compression spring 312 can exert downward elastic force on the sliding seat 341 sliding on the low-friction sliding guide rail 320. During the contact process, the probe on the probe conversion device 350 installed between the sliding seat 341 and the clamping block 342 can always be in stable contact with the battery electrode, avoiding the occurrence of poor contact and ensuring the normal operation of the detection work.

[0052] The cross-sectional shape of the annular groove 355 is L-shaped, the copper ring 356 is fixedly mounted on the inner top wall of the annular groove 355, and the shape of the metal block 357 matches the cross-sectional shape of the annular groove 355;

[0053] The L-shaped annular groove 355 cooperates with the metal block 357 to prevent the metal block 357 from falling off from the annular groove 355, thereby effectively preventing the occurrence of disconnection.

[0054] A raised portion is integrally formed at the bottom of the copper ring 356, and the position of the raised portion on the copper ring 356 corresponds to the position of the copper ring 356 corresponding to the oscilloscope probe 362 or the pole piece detection probe 363 connected thereto; the raised portion is arranged to facilitate further fitting and contacting the metal block 357, and the raised portion corresponds to the position of the corresponding connection probe, so that when one of the oscilloscope probe 362 or the pole piece detection probe 363 is vertically downward, the raised portion corresponding to the connected copper ring 356 is close to and in contact with the metal block 357, thereby ensuring good contact.

[0055] In the present invention, three additional rings 500 are integrally formed at the bottom of the converter 352, and the three additional rings 500 are respectively sleeved on the analog probe 361, the oscilloscope probe 362 and the pole piece detection probe 363. The upper thread of the additional ring 500 is connected with a support sleeve 501, and a telescopic rod 502 is clamped on the support sleeve 501, and an additional probe 503 is fixedly installed on the support sleeve 501.

[0056] Since the converter can only use one of the analog probe 361, oscilloscope probe 362 and pole piece detection probe 363 for detection each time it switches, according to the different numbers of probes required for detection by different detection machines, by installing a support sleeve 501 on the additional ring 500, and detachably installing a telescopic rod 502 on the support sleeve 501, the additional probe 503 on the telescopic rod 502 is used to cooperate with the detection head 360 to perform detection work, wherein the additional probe 503 is also electrically connected to the copper ring 356. In order to distinguish the signal circuit of the additional probe 503 and the detection head 360, the single copper ring 356 can be divided into two mutually insulated metal rings. According to the number of battery modules of the battery pack to be detected, the additional probe 503 can also be used to cooperate with the detection head 360 to synchronously test the positive and negative signals of different battery modules, thereby improving the detection efficiency of multiple battery modules.

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery positive and negative electrode electrical signal detection device with a switching probe structure, comprising a test cabinet (100), characterized in that: A three-dimensional moving mechanism (200) is fixedly installed inside the test cabinet (100), a probe control mechanism (300) is installed on the three-dimensional moving mechanism (200), and a battery positioning mechanism (400) is fixedly installed inside the test cabinet (100); The three-dimensional moving mechanism (200) comprises an X-axis electric guide rail (210), a Y-axis electric guide rail (220) and a Z-axis electric guide rail (230), wherein the X-axis electric guide rail (210) is fixedly installed inside the test cabinet (100), the Y-axis electric guide rail (220) is installed on the X-axis electric guide rail (210), the Z-axis electric guide rail (230) is installed on the Y-axis electric guide rail (220), and the probe control mechanism (300) is installed on the Z-axis electric guide rail (230); The probe control mechanism (300) comprises a lifting mounting seat (310) mounted on a Z-axis electric guide rail (230), a low-friction sliding guide rail (320) and a pressure sensor (330) being fixedly mounted on the lifting mounting seat (310), a clamping device (340) being slidably mounted on the low-friction sliding guide rail (320), a probe conversion device (350) being mounted on the clamping device (340), and a detection head (360) being mounted at the bottom of the probe conversion device (350); The probe conversion device (350) includes a mounting seat (351) fixedly mounted on the clamping device (340), a converter (352) is rotatably mounted on the bottom of the mounting seat (351), a reduction motor (353) is fixedly mounted on the mounting seat (351), an output shaft of the reduction motor (353) passes through the mounting seat (351) and is fixedly connected to the converter (352), wherein the detection head (360) is fixedly mounted on the bottom of the converter (352), and the mounting seat (351) is equipped with two detection The converter (352) has two annular grooves (355) on the top, and copper rings (356) are fixedly installed inside the two annular grooves (355). Two metal blocks (357) electrically connected to the detection interface (354) are fixedly installed on the bottom of the mounting seat (351). The two metal blocks (357) are respectively located on the inner sides of the two annular grooves (355) and are in smooth contact with the copper rings (356). The detection head (360) is connected to the copper rings (356) through a wire. The battery positioning mechanism (400) comprises a pole piece groove positioning plate (410) fixedly mounted on the test cabinet (100), and a positioning groove (420) is provided on the pole piece groove positioning plate (410).

2. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 1, characterized in that: A support (311) is fixedly mounted on the lifting mounting seat (310) by means of bolts, the pressure sensor (330) is fixedly mounted on the bottom of the support (311), a compression spring (312) is fixedly mounted on the support (311), and the bottom end of the compression spring (312) is in contact with the clamping device (340).

3. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 2, characterized in that: The clamping device (340) includes a sliding seat (341), the sliding seat (341) is slidably mounted on a low-friction sliding guide rail (320), a clamping block (342) is fixedly mounted on the sliding seat (341) by bolts, the probe conversion device (350) is installed between the sliding seat (341) and the clamping block (342), and the top of the sliding seat (341) is in contact with a compression spring (312).

4. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 1, characterized in that: The detection head (360) comprises an analog probe (361), an oscilloscope probe (362) and a pole piece detection probe (363), and the analog probe (361), the oscilloscope probe (362) and the pole piece detection probe (363) are all installed at the bottom of the converter (352).

5. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 4, characterized in that: The oscilloscope probe (362) and the pole piece detection probe (363) are respectively connected to the two copper rings (356) through wires.

6. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 1, characterized in that: The cross-sectional shape of the annular groove (355) is L-shaped, the copper ring (356) is fixedly mounted on the inner top wall of the annular groove (355), and the shape of the metal block (357) matches the cross-sectional shape of the annular groove (355).

7. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 4, characterized in that: A protrusion is integrally formed at the bottom of the copper ring (356), and the position of the protrusion on the copper ring (356) corresponds to the position of the copper ring (356) connected to an oscilloscope probe (362) or a pole piece detection probe (363).

8. The battery positive and negative electrode electrical signal detection device with a switchable probe structure according to claim 4, characterized in that: The bottom of the converter (352) is integrally formed with three additional rings (500), which are respectively sleeved on the analog probe (361), the oscilloscope probe (362) and the pole piece detection probe (363), the upper thread of the additional ring (500) is connected with a support sleeve (501), the support sleeve (501) is clamped with a telescopic rod (502), and the additional probe (503) is fixedly installed on the support sleeve (501).

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