A probe unit, a needle bed structure and a lithium battery detection formation device

Abstract

The present invention discloses a probe unit, a needle bed structure and a lithium battery detection formation device, wherein the probe unit comprises a fixed base, a plurality of sliders arranged in sequence are slidably connected to the fixed base, and a push rod is provided under the fixed base, the push rod penetrates the plurality of sliders to drive the plurality of sliders to move along the push rod; a probe module, a probe module is provided on each slider, the probe modules located on both sides of the fixed base are connected so that a fixed spacing is maintained between the connected probe modules; a fixed distance connecting rod is provided between the unconnected probe modules, and the movable spacing between the unconnected probe modules is adjusted by the fixed distance connecting rod. The present invention can adjust the distance between adjacent probe modules, and can detect lithium batteries of different battery specifications to improve the detection efficiency of lithium batteries.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery detection devices, and in particular to a probe unit, a needle bed structure and lithium battery detection formation equipment. Background Art

[0002] At present, with the rapid development of electronic devices, the research and development and production of lithium batteries used in electronic devices to provide power for electronic devices are receiving more and more attention. After the production of lithium batteries, they need to undergo an essential testing process before qualified lithium batteries can be put on the market for sale. Due to the large demand for lithium battery production, the corresponding demand for lithium battery testing is also increasing; however, in the existing technology, there is still manual testing of lithium batteries, which makes the testing efficiency of lithium batteries very low, and it is easy to cause errors and omissions in testing due to manual negligence and other reasons.

[0003] For example, in order to improve the detection efficiency of lithium batteries, the market has also launched devices that can perform batch detection of lithium batteries. However, due to the different battery specifications of lithium batteries, the lithium battery detection devices on the market cannot match batteries of different specifications, resulting in some batteries being unable to achieve batch detection, making it impossible to improve the detection efficiency of lithium batteries. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a probe unit that can adjust the distance between adjacent probe modules and detect lithium batteries of different battery specifications.

[0005] A second object of the present invention is to provide a needle bed structure that can batch test lithium batteries of different battery specifications and improve the testing efficiency of lithium batteries.

[0006] A third object of the present invention is to provide a lithium battery formation detection device.

[0007] One of the purposes of the present invention is achieved by the following technical solution:

[0008] A probe unit, comprising:

[0009] A fixed base, on which a plurality of sliders arranged in sequence are slidably connected, and a push rod is provided under the fixed base, the push rod penetrates through the plurality of sliders to drive the plurality of sliders to move along the push rod;

[0010] A probe module is provided on each slider, and the probe modules located on both sides of the fixed base are connected so that a fixed distance is maintained between the connected probe modules; a distance connecting rod is provided between the unconnected probe modules, and the movable distance between the unconnected probe modules is adjusted by the distance connecting rod.

[0011] Furthermore, the end of the push rod is provided with an end block slidably connected to the fixed base, and a first positioning plunger is provided on the end block, the end of the first positioning plunger passes through the end block and faces the fixed base, and the distance between its end and the fixed base is changed by adjusting the first positioning plunger; when the end of the first positioning plunger is away from the fixed base, relative sliding is achieved between the push rod and the fixed base under the action of external force.

[0012] Furthermore, a second positioning plunger is provided on the connected probe module, and the end of the second positioning plunger is opposite to the push rod. The distance between the end of the second positioning plunger and the push rod is changed by adjusting the second positioning plunger; when the end of the second positioning plunger is away from the push rod, relative sliding is achieved between the connected probe module and the push rod under the action of external force.

[0013] Furthermore, the probe module includes a connecting block and a probe, the connecting block includes a first horizontal segment and a second horizontal segment parallel to each other, and a vertical segment is provided on the same side of the first horizontal segment and the second horizontal segment; the probe is fixed on the second horizontal segment, and the length of the first horizontal segment is greater than the length of the second horizontal segment.

[0014] Furthermore, the number of the probe modules is set to twelve, wherein three of the probe modules are connected to both ends of the fixed base, distance connecting rods are provided between the independent probe modules, and distance connecting rods are also provided between the connected probe modules and the adjacent independent probe modules.

[0015] Furthermore, a plurality of positioning pins are provided in the middle of the fixed base, and the positioning pins extend outward to limit the position of the probe modules arranged in the middle on the fixed base.

[0016] Furthermore, the fixed spacing between the connected probe modules is set to 75 mm, and the movable spacing between the unconnected probe modules ranges from 75 to 110 mm.

[0017] Furthermore, a wire rack is provided on the fixed base, and a plurality of fixed wire rings are provided on the wire rack, and a fire-fighting pipe is provided on each of the probe modules, and the fire-fighting pipe extends to the wire rack and is fixed by the fixed wire rings.

[0018] The second object of the present invention is achieved by adopting the following technical solution:

[0019] A needle bed structure, comprising:

[0020] Positioning bracket;

[0021] There are multiple probe units as described above, and both ends of the fixed base of each probe unit are provided with fixing components, and each probe unit is connected to the positioning bracket through the fixing components, so that multiple probe units can be installed in parallel on the positioning bracket.

[0022] The third object of the present invention is achieved by adopting the following technical solution:

[0023] A lithium battery formation detection device, comprising:

[0024] Testing platform;

[0025] The needle bed structure as mentioned above is arranged at a position directly facing the detection platform;

[0026] The pressing device is linked with the needle bed structure to drive the needle bed structure to be pressed toward the detection platform or away from the detection platform.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] Each probe module is slidably connected to a fixed base through a slider, and multiple probe modules can be synchronously moved by a push rod to adjust the spacing between the probe modules, so that each probe module corresponds to a lithium battery to be tested, meeting the automatic detection requirements of lithium batteries of different battery specifications and improving the efficiency of lithium battery detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the structure of the probe unit in the first embodiment of the present invention;

[0030] Figure 2 Schematic diagram of the front view structure of the probe unit in the first embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the needle bed structure in the second embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the lithium battery formation detection equipment in the third embodiment of the present invention.

[0033] In the figure: 1. fixed base; 2. push rod; 3. slider; 4. probe module; 41. connecting block; 411. first horizontal section; 412. second horizontal section; 413. vertical section; 42. probe; 5. distance connecting rod; 6. positioning pin; 7. end block; 8. first positioning plunger; 9. second positioning plunger; 10. wire rack; 11. fixed wire ring; 12. fire protection pipe; 13. positioning bracket; 14. fixed assembly; 15. detection platform; 16. pressing device. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0035] Embodiment 1

[0036] Reference Figure 1 , Figure 2 As shown, this embodiment provides a probe unit, specifically including a fixed base 1 and a probe module 4; a slide rail is provided at the lower edge of the fixed base 1, and a plurality of sliders 3 are slidably connected to the slide rail and arranged side by side; and a push rod 2 is provided under the fixed base 1, wherein the push rod 2 is parallel to the lower edge line of the fixed base 1, and the push rod 2 passes through the plurality of sliders 3, so that when the push rod 2 is pushed, the plurality of sliders 3 can be driven to move synchronously along the push rod 2.

[0037] A probe module 4 is provided on each slider 3, and the probe module 4 includes a connecting block 41 and a probe 42. The top of the connecting block 41 is connected to the slider 3, and the bottom of the connecting block 41 is connected to the probe 42, so that the detection port of the probe 42 faces downward. In this embodiment, the connecting block 41 includes a first horizontal section 411 and a second horizontal section 412 parallel to each other. The first horizontal section 411 is used to connect the slider 3, and the second horizontal section 412 is used to install the probe 42. A vertical section 413 is provided on the same side of the first horizontal section 411 and the second horizontal section 412 to ensure that the probe 42 and the slider 3 can achieve stable and synchronous movement.

[0038] The multiple probe modules 4 located on the left and right sides of the fixed base 1 are connected so that a fixed distance is maintained between the multiple connected probe modules 4; and a distance connecting rod 5 is provided between the unconnected probe modules 4 located in the middle of the fixed base 1, and the movable distance between the unconnected probe modules 4 is adjusted by the distance connecting rod 5; in this embodiment, the fixed distance between the connected probe modules 4 is set to 75mm.

[0039] In the present embodiment, a through hole is opened on the connecting block 41 of the probe module 4, and the distance connecting rod 5 passes through the through holes of the two probe modules 4, and both ends of the distance connecting rod 5 are provided with plugging pieces with a diameter larger than the through hole, so that the adjacent probe modules 4 can move back and forth along the distance connecting rod 5. When the two adjacent probe modules 4 respectively resist the plugging pieces at the left and right ends of the distance connecting rod 5, the active distance between the two probe modules 4 is the largest; and the length of the first horizontal segment 411 of each probe module 4 is greater than the length of the second horizontal segment 412. When the first horizontal segments 411 of the two probe modules 4 are in contact with each other, it means that the active distance between the two probe modules 4 is the smallest; in the present embodiment, the active distance range of the unconnected probe modules 4 is 75 to 110 mm.

[0040] At the same time, a plurality of positioning pins 6 are provided in the middle of the fixed base 1. In the present embodiment, three positioning pins 6 are provided. The three positioning pins 6 extend downward so that the middle position of the fixed base 1 is divided into two positioning spaces, and the two independent probe modules 4 arranged in the middle are respectively confined in the two positioning spaces to improve the adjustment efficiency of the spacing between the probe modules 4.

[0041] A plug is provided at one end of the push rod 2, which is connected to the probe module 4 to drive the probe module 4 at the outer end to move and prevent the probe module 4 at the outer end from detaching from the push rod 2; and an end block 7 is provided at the other end of the push rod 2 with a sliding connection to the fixed base 1. The structure of the end block 7 can be the same as that of the slider 3, and a first positioning plunger 8 is provided on the end block 7. The rod body position of the first positioning plunger 8 is fixed on the end block 7, and the end of the first positioning plunger 8 passes through the end block 7 and is exposed outside the end block 7, so that the end of the first positioning plunger 8 is facing the fixed base 1; under the action of external force, the distance between the end of the first positioning plunger 8 and the fixed base 1 can be changed by rotation or pressing; when the end of the first positioning plunger 8 is away from the fixed base 1, the user can push the push rod 2 to achieve relative sliding between the push rod 2 and the fixed base 1; when the end of the first positioning plunger 8 abuts against the fixed base 1, the push rod 2 cannot slide.

[0042] At the same time, a second positioning plunger 9 is provided on the connected probe module 4 on the same side as the first positioning plunger 8. In the present embodiment, the second positioning plunger 9 is provided on the first horizontal section 411 of the probe module 4 located at the outermost end. The structure of the second positioning plunger 9 is the same as that of the first positioning plunger 8. The end of the second positioning plunger 9 passes through and is exposed outside the first horizontal section 411, so that the end of the second positioning plunger 9 is opposite to the push rod 2. The user can change the distance between the end of the second positioning plunger 9 and the push rod 2 by rotating or pressing; when the end of the second positioning plunger 9 is away from the push rod 2, the user can synchronously push the connected probe module 4 to achieve relative sliding between the connected probe module 4 and the push rod 2.

[0043] A wire rack 10 is provided on the fixed base 1, and a plurality of fixed wire rings 11 are provided on the wire rack 10; and a fire-fighting pipe 12 is provided on each probe module 4, and the fire-fighting pipe 12 can be used to accommodate the wires or air pipes required by the probe module 4, so that the lines can be centrally stored, and the fire-fighting pipe 12 extends to the wire rack 10 and is fixed by the fixed wire rings 11.

[0044] In this embodiment, the spacing between the probe modules 4 is adjusted to detect lithium batteries with different battery specifications. In this embodiment, the number of probe modules 4 is twelve, and the twelve probe modules 4 are arranged in sequence from left to right, wherein three probe modules 4 are connected at both ends of the fixed base 1, and a fixed spacing is maintained between the connected probe modules 4; and the movable spacing between the six independent probe modules 4 located in the middle of the fixed base 1 is adjusted by a spacing connecting rod 5, and a spacing connecting rod 5 is also provided between the connected probe modules 4 and the adjacent independent probe modules 4; and the sixth and seventh probe modules 4 are arranged from left to right and limited in their respective corresponding positioning spaces. In this embodiment, the "twelve to eight" mode can be realized by adjusting the probe modules 4 to detect lithium batteries with two different battery specifications. The specific adjustment principle is as follows:

[0045] When the active spacing between each probe module 4 is the smallest, the spacing between the twelve probe modules 4 is 75 mm. At this time, the twelve probe modules 4 can be used to detect lithium batteries of the first battery specification at the same time, and twelve lithium battery samples can be detected at one time; when it is necessary to detect lithium batteries of the second battery specification, the spacing between adjacent probes needs to be adjusted to 110 mm, then the first positioning plunger 8 needs to be loosened and moved toward the front end of the needle bed (such as Figure 2 The push rod 2 is pushed in the direction of the arrow 1 in the figure. The push rod 2 drives the probe module 4 to move in the direction of the arrow through the slider 3. During the movement, the distance connecting rod 5 between the probe modules 4 is pulled apart, and the three connected probe modules 4 on the left are synchronously pushed away from the fourth probe module 4. When the distance connecting rod 5 is moved to the maximum limit, the active spacing between the third probe module 4 to the ninth probe module 4 on the left is adjusted to 110 mm. Thereafter, the second positioning plunger 9 is released to move the three connected probe modules 4 on the right toward the rear end direction (such as Figure 2 The probe modules 4 are moved in the direction of arrow 2 in the figure, so that the three probe modules 4 on the right are separated from the ninth probe module 4 arranged from left to right, and the active spacing between the ninth probe module 4 and the tenth probe module 4 is also adjusted to 110 mm, so that the distance between the third to the tenth probe modules 4 arranged from left to right is 110 mm, thereby achieving the effect that the eight probe modules 4 can simultaneously detect lithium batteries of the second battery specification.

[0046] The probes 42 in different probe modules 4 may be specifically configured as a current probe 42 , a temperature probe 42 or a negative pressure nozzle. The current probe 42 , the negative pressure nozzle and the temperature probe 42 may all be configured to quickly achieve a “twelve to eight” setting.

[0047] Embodiment 2

[0048] This embodiment provides a needle bed structure, which is formed by combining the multiple probe units described in the first embodiment. Figure 3 As shown, the needle bed structure includes a positioning bracket 13 and multiple probe units as in Example 1. The left and right ends of the fixed base 1 of each probe unit are provided with fixing components 14. After placing the multiple probe units on the positioning bracket 13, each probe unit is connected to the left and right sides of the positioning bracket 13 through its fixing component 14, so that the multiple probe units are installed in parallel on the positioning bracket 13 to form a needle bed structure.

[0049] In this embodiment, in order to avoid the different heights of multiple probe units, card slots are provided on the left and right sides of the positioning bracket 13, and the fixing component 14 is a card position corresponding to the card slot. After the fixing component 14 is inserted into the card slot, the two are fixed together with bolts and nuts to ensure the uniform height of each probe unit.

[0050] Embodiment 3

[0051] This embodiment provides a lithium battery formation testing device, which applies the needle bed structure in the second embodiment to the lithium battery formation device to achieve rapid and accurate batch testing of lithium batteries of different battery specifications, thereby improving the testing efficiency.

[0052] like Figure 3 As shown, the lithium battery detection and formation equipment of this embodiment includes a detection platform 15, a needle bed structure as described in the second embodiment, and a pressing device 16. A plurality of storage positions are provided on the detection platform 15, each of which may correspond to a lithium battery, and the power supply can be automatically calibrated after the lithium battery is placed in the storage position; and the needle bed structure as described in the second embodiment is provided directly above the detection platform 15, so that the probe 42 on the needle bed structure is directly facing the detection platform 15; and the pressing device 16 in the lithium battery detection and formation equipment is linked with the needle bed structure, and the pressing device 16 can drive the needle bed structure to move up and down, so as to realize the driving of the needle bed structure to move in the direction of the detection platform 15 or to move away from the detection platform 15, thereby achieving the purpose of automatically detecting batches of lithium batteries.

[0053] In addition, the lithium battery detection and formation equipment also includes probe 42 cooling fan, foolproof mechanism, temperature sensor, smoke sensor and other devices to improve the safety of the lithium battery detection and formation equipment. The smoke sensor and temperature sensor can be arranged on the top of the needle bed, and a cooling fan can be arranged correspondingly on each storage position, and the air outlet of the cooling fan is directly facing the position of the probe 42. At the same time, a cooling fan and an exhaust port can also be arranged on the top of the lithium battery detection and formation equipment, which can be connected to the factory pipeline to discharge heat.

[0054] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A probe unit, characterized in that: include: A fixed base, on which a plurality of sliders arranged in sequence are slidably connected, and a push rod is provided under the fixed base, the push rod penetrates through the plurality of sliders to drive the plurality of sliders to move along the push rod; A probe module, wherein a probe module is arranged on each slider, and the probe modules located on both sides of the fixed base are connected so that a fixed distance is maintained between the connected probe modules; a distance connecting rod is arranged between the independent probe modules, and a distance connecting rod is also arranged between the connected probe modules and the adjacent independent probe modules, and the movable distance between the unconnected probe modules is adjusted by the distance connecting rod, the probe module comprises a connecting block and a probe, the connecting block comprises a first horizontal section and a second horizontal section parallel to each other, and a vertical section is arranged on the same side of the first horizontal section and the second horizontal section; the probe fixed The connecting block is fixed on the second horizontal segment, and the length of the first horizontal segment is greater than that of the second horizontal segment. When the first horizontal segments of the two probe modules are in contact with each other, the movable spacing between the two probe modules is minimum. A through hole is provided on the connecting block, and the distance connecting rod passes through the through holes of the two probe modules. Both ends of the distance connecting rod are provided with plugs with a diameter larger than the through hole, so that the adjacent probe modules can move back and forth along the distance connecting rod. When the two adjacent probe modules respectively resist the plugs at the left and right ends of the distance connecting rod, the movable spacing between the two probe modules is maximum.

2. The probe unit according to claim 1, characterized in that The end of the push rod is provided with an end block slidably connected to the fixed base, and a first positioning plunger is provided on the end block. The end of the first positioning plunger passes through the end block and faces the fixed base. The distance between its end and the fixed base is changed by adjusting the first positioning plunger; when the end of the first positioning plunger is away from the fixed base, relative sliding is achieved between the push rod and the fixed base under the action of external force.

3. The probe unit according to claim 1, characterized in that A second positioning plunger is provided on the connected probe module, and the end of the second positioning plunger is opposite to the push rod. The distance between the end of the second positioning plunger and the push rod can be changed by adjusting the second positioning plunger; when the end of the second positioning plunger is away from the push rod, relative sliding is achieved between the connected probe module and the push rod under the action of external force.

4. The probe unit according to claim 1, characterized in that A plurality of positioning pins are arranged in the middle of the fixed base, and the positioning pins extend outward to limit the position of the probe modules arranged in the middle on the fixed base.

5. The probe unit according to claim 1, characterized in that: The fixed spacing between the connected probe modules is set to 75 mm, and the movable spacing between the unconnected probe modules ranges from 75 to 110 mm.

6. The probe unit according to claim 1, characterized in that: A wire rack is arranged on the fixed base, and a plurality of fixed wire rings are arranged on the wire rack. A fire-fighting pipe is arranged on each of the probe modules. The fire-fighting pipe extends to the wire rack and is fixed by the fixed wire rings.

7. A needle bed structure, characterized in that: include: Positioning bracket; There are multiple probe units as described in any one of claims 1 to 6, and both ends of the fixed base of each probe unit are provided with fixing components, and each probe unit is connected to the positioning bracket through the fixing components, so that multiple probe units can be installed in parallel on the positioning bracket.

8. A lithium battery formation detection device, characterized in that: include: Testing platform; The needle bed structure according to claim 7, which is arranged at a position directly facing the detection platform; The pressing device is linked with the needle bed structure to drive the needle bed structure to be pressed toward the detection platform or away from the detection platform.

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