Battery charging equipment

Abstract

The present invention discloses a battery charging device, which belongs to the field of battery charging, and includes a charging device, a conveying device and a transposition device. The charging device includes a charging box, and the charging box includes a plurality of trays. A plurality of placement slots are arranged on the upper side of the tray, and clamping contacts are arranged at both ends of the placement slots; the conveying device includes a transverse shift seat, and the transverse shift seat is provided with a suction cup assembly, and a loading station, a transfer station, and a unloading station are arranged below the suction cup assembly; the transposition device includes a third driving mechanism for driving the charging box to rise and fall; one of the trays is called a first tray, and the first tray has a first state and a second state. In the first state, the first tray is located in the charging box, and each clamping contact is electrically connected to the charging module. In the second state, the first tray is located in the transfer station. The staff can place the carrier tray containing the batteries to be recharged at the loading station, and all the batteries in the carrier tray can be transferred to the charging box for recharging by running the battery recharging device, which is more convenient.

Description

Technical Field

[0001] The present invention relates to the field of battery charging, and in particular to a battery charging device. Background Art

[0002] Batteries that have been stored for a period of time need to be recharged before shipment. The existing recharging process does not have special recharging equipment, and can only be recharged using the charging cabinet used in battery production. This requires manual removal of batteries from the carrier plate one by one and then placing them into the charging cabinet, which is very inconvenient. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a battery charging device.

[0004] A battery charging device according to an embodiment of the present invention includes:

[0005] A charging device, comprising a charging box and a charging module, wherein the charging box comprises a plurality of trays arranged in sequence in a vertical direction, wherein the trays are slidably connected to the charging box in a front-to-back manner, wherein a plurality of placement slots are arranged in sequence from front to back on the upper side of the tray, wherein a positive contact and a negative contact are arranged at both ends of the placement slots, respectively, wherein the positive contact and the negative contact are both referred to as clamping contacts;

[0006] The conveying device comprises a transverse shift seat and a first driving mechanism for driving the transverse shift seat to move transversely, the transverse shift seat is provided with a suction cup assembly and a second driving mechanism for driving the suction cup assembly to move vertically, the suction cup assembly comprises a plurality of vacuum suction cups sequentially arranged along the front-back direction, and a loading station, a transfer station, and a unloading station are sequentially arranged from left to right below the suction cup assembly;

[0007] The transposition device comprises a base, wherein the base is provided with a third driving mechanism for driving the charging box to rise and fall;

[0008] The charging box is arranged at the rear side of the transfer station, one of the trays is called the first tray, and the first tray has a first state and a second state when sliding forward and backward relative to the charging box. In the first state, the first tray is located in the charging box, and each of the clamping contacts is electrically connected to the charging module. In the second state, the first tray is located at the transfer station, and the vacuum suction cup is arranged one-to-one with the placement groove.

[0009] The battery charging device according to the embodiment of the present invention has at least the following technical effects: when in use, the staff can place the carrier tray with the batteries to be charged at the loading station and the empty carrier tray at the unloading station, and then run the battery charging device, one of the trays moves to the transfer station, the conveying device conveys the first row of batteries in the carrier tray to the tray located at the transfer station, and then the tray located at the transfer station moves backward to the charging box, the position change device drives the charging box to move the second tray to the rear of the transfer station, the second tray moves to the transfer station to receive the second row of batteries, and after receiving the second row of batteries, moves back to the charging box, and in this cycle, all the batteries in the carrier tray can be transferred to the charging box for charging; when the batteries need to be taken out after charging, the tray moves to the transfer station, the conveying device conveys the batteries on the tray to the carrier tray of the unloading station, and then the conveying device extracts another batch of batteries that need to be charged from the loading station and puts them into the tray, and the tray moves back to the charging box; there is no need to manually pick up and put the batteries one by one, which is more convenient.

[0010] According to some embodiments of the present invention, a pallet is connected between the tray and the charging box, the tray is slidably arranged on the upper side of the pallet, the pallet is provided with a positive sliding wire and a negative sliding wire electrically connected to the charging module, and each of the clamping contacts is electrically connected to a sliding contact; in the first state, all the sliding contacts corresponding to the positive contacts are electrically connected to the positive sliding wire, and all the sliding contacts corresponding to the negative contacts are electrically connected to the negative sliding wire.

[0011] According to some embodiments of the present invention, a detection module is further included. In the second state, all the clamping contacts are electrically connected to the detection module respectively. The detection module includes a plurality of detection units, and the detection units are arranged in a one-to-one correspondence with the placement slots.

[0012] According to some embodiments of the present invention, the transfer station is provided with a transfer plate, and the transfer plate is provided with a plurality of transfer contacts. In the second state, the sliding contacts are connected to the transfer contacts in a one-to-one correspondence, and the transfer contacts are electrically connected to the detection module.

[0013] According to some embodiments of the present invention, a defective product basket is provided between the transfer station and the unloading station.

[0014] According to some embodiments of the present invention, a fifth driving mechanism for driving the first disk to move forward and backward is provided at the front side of the transfer station.

[0015] According to some embodiments of the present invention, the fifth driving mechanism includes a clamping member and a fifth driver for driving the clamping member to move forward and backward, and the clamping member is detachably connected to the first disk.

[0016] According to some embodiments of the present invention, the clamping member is a pneumatic clamping jaw.

[0017] According to some embodiments of the present invention, there are multiple charging boxes, and the multiple charging boxes are arranged in sequence along the horizontal direction. The transposition device also includes a fourth driving mechanism for driving the base to move horizontally.

[0018] According to some embodiments of the present invention, the charging module includes a DC power supply and a splitter, the DC power supply is connected to the splitter via a flexible wire, and the clamping contact is electrically connected to the splitter.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a battery charging device according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of the middle A area;

[0023] Figure 3 yes Figure 1 A schematic diagram of the exploded structure of the charging unit in FIG.

[0024] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the tray;

[0025] Figure 5 yes Figure 2 Schematic diagram of the expansion mechanism in.

[0026] In the attached figure:

[0027] 001-carrying plate; 100-charging box; 110-base; 120-fourth driving mechanism; 200-charging unit; 210-support plate; 211-positive sliding wire; 212-negative sliding wire; 220-tray; 221-placing slot; 222-slide slot; 223-positive contact; 224-negative contact; 225-pushing block; 226-spring; 227-bending part; 228-positive sliding contact; 310-first driving mechanism; 320-transverse seat; 321-second driving mechanism; 330-vacuum suction cup; 400-defective basket; 500-transfer plate; 501-positive transfer contact; 502-negative transfer contact; 510-opening mechanism; 511-push plate; 512-sixth driving mechanism. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the directions or positional relationships indicated, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the meaning of "several" is one or more, the meaning of "many" is more than two, greater than, less than, exceed, etc. are understood to exclude the number itself, and above, below, within, etc. are understood to include the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference below Figures 1 to 5 A battery charging device according to an embodiment of the present invention is described.

[0032] It is understandable that after the cylindrical battery is produced, it is usually placed on a carrier plate 001 with multiple grooves for storage and transportation. The grooves on the carrier plate 001 are arranged in a rectangular array. Generally, the battery order will be shipped immediately after production is completed. However, in some special cases, customers will request to ship after a period of time; this will cause the battery to be placed in the warehouse for a period of time, and the battery may be out of power when it is shipped, which is not convenient for customers to use immediately after receiving the goods. Therefore, for these batteries that have been placed for a period of time, they must be recharged before shipment.

[0033] Reference Figure 1 , the battery charging device of the embodiment of the present invention includes a charging device, a conveying device and a transposition device;

[0034] The charging device includes a charging box 100 and a charging module. The charging box 100 includes a plurality of trays 220 arranged in sequence along the vertical direction. The trays 220 are connected to the charging box 100 by sliding forward and backward. A plurality of placement grooves 221 are arranged in sequence from front to back on the upper side of the tray 220. A positive contact 223 and a negative contact 224 are respectively arranged at both ends of the placement groove 221. The positive contact 223 and the negative contact 224 are both called clamping contacts.

[0035] The charging box 100 includes a bottom plate and a vertically arranged support plate, the lower edge of the support plate is fixedly connected to the rear edge of the bottom plate, and a plurality of charging units 200 are arranged at intervals in sequence from top to bottom; Figure 3 The charging unit 200 includes a support plate 210 and a tray 220. The rear end of the support plate 210 is fixedly connected to the support plate. The tray 220 is arranged on the upper side of the support plate 210. The bottom left and bottom right sides of the tray 220 are provided with slide grooves 222. The left edge and the right edge of the support plate 210 are respectively arranged in the two slide grooves 222, so that the tray 220 can slide forward and backward; the left edge of the support plate 210 is provided with a positive electrode sliding wire 211 extending forward and backward, and the right edge of the support plate 210 is provided with a negative electrode sliding wire 212 extending forward and backward. A plurality of positive sliding contacts 228 are provided at the bottom of the tray 220 and on the upper side of the positive electrode sliding wire 211. The plurality of positive sliding contacts 228 are arranged in sequence along the front and rear directions. Figure 4 As shown, all positive contacts 223 are electrically connected to all positive sliding contacts 228 in a one-to-one correspondence, a plurality of negative sliding contacts are provided at the bottom of the tray 220 and on the upper side of the negative sliding wire 212, the plurality of negative sliding contacts are arranged in sequence and spaced apart along the front-to-back direction, all negative contacts 224 are electrically connected to all negative sliding contacts in a one-to-one correspondence; the positive sliding wire 211 and the negative sliding wire 212 are electrically connected to the charging module respectively.

[0036] The conveying device includes a transverse shift seat 320 and a first driving mechanism 310 for driving the transverse shift seat 320 to move transversely. The transverse shift seat 320 is provided with a suction cup assembly and a second driving mechanism 321 for driving the suction cup assembly to move vertically. The suction cup assembly includes a plurality of vacuum suction cups 330 arranged in sequence along the front-to-back direction. A loading station, a transfer station, and a unloading station are arranged in sequence from left to right below the suction cup assembly.

[0037] The first driving mechanism 310 can be a linear motor. The first driving mechanism 310 spans over the loading station, the transfer station and the unloading station. The transverse shift seat 320 is arranged on the lower side of the first driving mechanism 310; the suction cup assembly includes a first strip, which is in the shape of a strip extending forward and backward. All vacuum suction cups 330 are arranged on the first strip. The first strip is arranged below the transverse shift seat 320. The front and rear ends of the first strip are provided with vertically arranged sliding rods so that the first strip can be vertically slidably arranged on the transverse shift seat 320. The second driving mechanism 321 can be a vertically arranged cylinder. By setting up multiple vacuum suction cups 330, the conveying device can convey multiple batteries at the same time, and the conveying efficiency is relatively high; wherein, the number of conveying devices can be two, wherein one conveying device is used to convey the batteries from the loading station to the transfer station, and the other conveying device is used to convey the batteries from the transfer station to the unloading station, so as to further improve the conveying efficiency. At this time, the first driving mechanism 310 can be a dual-acting linear motor to individually drive the two transverse shift seats 320.

[0038] The transposition device includes a base 110, and the base 110 is provided with a third driving mechanism for driving the charging box 100 to rise and fall. The third driving mechanism can be a vertically arranged electric push rod, and the third driving mechanism is arranged on the lower side of the bottom plate.

[0039] The charging box 100 is arranged at the rear side of the transfer station, one of the trays 220 is called the first tray, and the first tray has a first state and a second state when sliding back and forth relative to the charging box 100. In the first state, the first tray is located in the charging box 100, and each clamping contact is electrically connected to the charging module. In the second state, the first tray is located in the transfer station, and the vacuum suction cup 330 is arranged one-to-one with the placement groove 221; in the second state, when the suction cup assembly moves to the top of the transfer station, multiple vacuum suction cups 330 are arranged one-to-one above the multiple placement grooves 221, so that the vacuum suction cup 330 can place the battery in the placement groove 221.

[0040] When in use, the staff can place the carrier tray 001 with the batteries to be charged at the loading station, and the empty carrier tray 001 at the unloading station, and then operate the battery charging equipment, one of the trays 220 moves to the transfer station, the conveying device conveys the first row of batteries in the carrier tray 001 to the tray 220 located at the transfer station, and then the tray 220 located at the transfer station moves backward to the charging box 100, the transposition device drives the charging box 100 to move the second tray 220 to the back of the transfer station, the second tray 220 moves to the transfer station to receive the second row of batteries, and after receiving the second row of batteries, moves back to the charging box 100, and this cycle can transfer all the batteries in the carrier tray 001 to the charging box 100. When the batteries need to be taken out after the charging is completed, the tray 220 moves to the transfer station, and the conveying device conveys the batteries on the tray 220 to the carrier plate 001 of the unloading station, and then the conveying device extracts another batch of batteries that need to be charged from the loading station and puts them into the tray 220, and the tray 220 moves back to the charging box 100; there is no need to manually pick up and put the batteries one by one, which is more convenient; it can be understood that the time required to transport a row of batteries is much less than the time for charging the batteries. By setting a transfer station, the present invention can load or unload other batteries during the charging process of some batteries, and only one conveying device is needed, and the structure is relatively simple; the charging box 100 is stacked with multiple trays 220 vertically, which can charge the batteries in batches, and the structure is compact. Among them, the way to judge whether the charging is completed can be to judge by the time of charging.

[0041] In some embodiments of the present invention, for the two clamping contacts arranged at both ends of the same placement slot 221, a pushing mechanism is connected between at least one of the clamping contacts and the tray 220, and the pushing mechanism includes a pushing block 225, which is slidably arranged on the tray 220 in a transverse direction, and the clamping contact is arranged at one end of the pushing block 225 facing the placement slot 221. A transversely arranged spring 226 is connected between the pushing block 225 and the tray 220, so that the pushing block 225 and the clamping contact have a tendency to move toward the placement slot 221. The end of the pushing block 225 away from the placement slot 221 is called the first end, and the first end extends transversely to the edge of the tray 220 protruding, and the first end is bent downward to form a bending portion 227, and a first space is formed between the bending portion 227 and the edge of the tray 220; an opening mechanism 510 is provided at the lower side of the transfer station, refer to Figure 5The opening mechanism 510 includes a push plate 511 and a sixth driving mechanism 512 for driving the push plate 511 to move horizontally. The sixth driving mechanism 512 can be a cylinder. The push plate 511 is in the shape of a strip extending forward and backward. The top of the push plate 511 is provided with a first convex edge extending forward and backward. In the second state, the first convex edge is arranged in the first space, so that when the sixth driving mechanism 512 drives the push plate 511 to move away from the tray 220, the push block 225 and the clamping contact both move away from the placement groove 221 to facilitate the placement of batteries. When the push plate 511 moves toward the direction close to the tray 220, the push block 225 and the clamping contact clamp the battery in the placement groove 221 under the action of the spring 226. When the tray 220 moves backward from the transfer station to the charging box 100, the tray 220 is separated from the first convex edge, and the push block 225 and the clamping contact keep clamping the battery in the placement groove 221. In this embodiment, both the positive electrode clamping contact and the negative electrode clamping contact are provided with a pushing mechanism, the number of the pushing plates 511 is also correspondingly two, and the sixth driving mechanism 512 is a bidirectional cylinder.

[0042] In some embodiments of the present invention, a support plate 210 is connected between the tray 220 and the charging box 100, and the tray 220 is slidably arranged on the upper side of the support plate 210. The support plate 210 is provided with a positive sliding wire 211 and a negative sliding wire 212 electrically connected to the charging module, and each clamping contact is electrically connected to a sliding contact; in the first state, the sliding contacts corresponding to all positive contacts 223 are electrically connected to the positive sliding wire 211, and the sliding contacts corresponding to all negative contacts 224 are electrically connected to the negative sliding wire 212. In this way, it is not necessary to set a wire to connect each positive contact 223 and each negative contact 224 to the charging module, and only the positive sliding wire 211 and the negative sliding wire 212 need to be connected to the charging module, which reduces the setting of wires and has a simple and compact structure.

[0043] In some embodiments of the present invention, the battery charging device also includes a detection module. In the second state, all clamping contacts are electrically connected to the detection module respectively. The detection module includes a plurality of detection units, and the detection units are arranged one by one with the placement slots 221. It is understandable that the battery may be damaged after being placed for a long time and needs to be screened out and cannot be shipped to customers. By setting up a detection module, this embodiment can also detect the battery that has been charged, so as to screen out the damaged battery.

[0044] Reference Figure 2In some embodiments of the present invention, the transfer station is provided with a transfer plate 500, and the transfer plate 500 is provided with a plurality of transfer contacts. In the second state, the sliding contact is connected to the transfer contact in a one-to-one correspondence, and the transfer contact is electrically connected to the detection module. A plurality of positive transfer contacts 501 are provided on the upper side of the left edge of the transfer plate 500, and the plurality of positive transfer contacts 501 are arranged in sequence from front to back. A plurality of negative transfer contacts 502 are provided on the upper side of the right edge of the transfer plate 500, and the plurality of negative transfer contacts 502 are arranged in sequence from front to back. In the second state, the plurality of positive sliding contacts 228 are in contact with the plurality of positive transfer contacts 501 in a one-to-one correspondence, and the plurality of negative sliding contacts are in contact with the plurality of negative transfer contacts 502 in a one-to-one correspondence. The positive transfer contacts 501 and the negative transfer contacts 502 corresponding to the same placement slot 221 are electrically connected to a detection unit, so that the plurality of detection units can detect a plurality of batteries in a one-to-one correspondence. Among them, the detection unit can detect the resistance, voltage and other parameters of the battery. The detection unit is a conventional technical means in this field, and its specific structure is not described here. By setting up a detection module at the transfer station, it is not necessary to set up a detection unit corresponding to each tray 220 and each placement slot 221 of the charging box 100. The number of detection units is consistent with the number of placement slots 221 on a tray 220, and all batteries that have been charged can be detected and screened.

[0045] In some embodiments of the present invention, a defective basket 400 is provided between the transfer station and the unloading station. If the detection module detects that a battery is damaged, when the conveying device conveys the battery from the transfer station to the unloading station, when passing over the defective basket 400, the vacuum suction cup 330 corresponding to the damaged battery is released, so that the damaged battery falls into the defective basket 400, and the remaining batteries are conveyed to the unloading station to complete the screening.

[0046] In some embodiments of the present invention, a fifth driving mechanism for driving the first tray to move forward and backward is provided at the front side of the transfer station, so as to facilitate driving the first tray to move forward and backward.

[0047] In some embodiments of the present invention, the fifth driving mechanism includes a clamping member and a fifth driver for driving the clamping member to move forward and backward, and the clamping member is detachably connected to the first tray. After the first tray is transported to the charging box 100, the clamping member is separated from the first tray to prevent the clamping member from hindering the position change of the charging box 100.

[0048] In some embodiments of the present invention, the clamping member is a pneumatic clamping claw. This has a simple structure and is easy to set up. The fifth driver can be a cylinder extending forward and backward, the cylinder body of the fifth driver is relatively fixedly arranged with the transfer plate 500, the piston rod of the fifth driver extends backward, the clamping member is arranged at the rear end of the fifth driver, and the piston rod of the fifth driver is arranged above the transfer plate 500, so that the transfer plate 500 will not hinder the fifth driver from driving the clamping member.

[0049] In some embodiments of the present invention, the clamping member may also be an electromagnet. An iron block is provided at the front section of each tray 220. When the tray 220 moves to the transfer station, the electromagnet is provided directly in front of the iron block.

[0050] In some embodiments of the present invention, there are multiple charging boxes 100, and the multiple charging boxes 100 are arranged in sequence in the horizontal direction. The transposition device also includes a fourth driving mechanism 120 for driving the base 110 to move horizontally. The fourth driving mechanism 120 can be a linear motor, an electric push rod or other suitable components. The bottom plates and support plates of the multiple charging boxes 100 can be an integrated component; in this way, the battery charging device can charge more batteries at the same time, the charging efficiency is higher, and there is no need to set up more detection units.

[0051] In some embodiments of the present invention, the charging module includes a DC power supply and a splitter, the DC power supply is connected to the splitter through a flexible wire, and the clamping contact is electrically connected to the splitter. In this way, during operation, only the flexible wire needs to be deformed as the position of the charging box 100 changes, the splitter can be relatively fixed to the charging box 100, and the wire connected between the splitter and the positive sliding wire 211 and the wire connected between the splitter and the negative sliding wire 212 do not need to be deformed as the position of the charging box 100 changes. The structure is reasonable and conducive to reducing the failure rate.

[0052] The preferred embodiments of the present invention are specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A battery charging device, characterized in that: include: A charging device, comprising a charging box (100) and a charging module, wherein the charging box (100) comprises a plurality of trays (220) arranged in sequence and spaced apart in a vertical direction, wherein the trays (220) are connected to the charging box (100) by sliding forward and backward, wherein the upper side of the tray (220) is provided with a plurality of placement grooves (221) in sequence from front to back, wherein a positive contact (223) and a negative contact (224) are respectively provided at both ends of the placement grooves (221), wherein the positive contact (223) and the negative contact (224) are both referred to as clamping contacts; The conveying device comprises a transverse shift seat (320) and a first driving mechanism (310) for driving the transverse shift seat (320) to move transversely, the transverse shift seat (320) is provided with a suction cup assembly and a second driving mechanism (321) for driving the suction cup assembly to move vertically, the suction cup assembly comprises a plurality of vacuum suction cups (330) arranged in sequence along the front-to-back direction, and a loading station, a transfer station, and a unloading station are arranged in sequence from left to right below the suction cup assembly; A transposition device, comprising a base (110), wherein the base (110) is provided with a third driving mechanism for driving the charging box (100) to rise and fall; The charging box (100) is arranged at the rear side of the transfer station, one of the trays (220) is called a first tray, and the first tray slides forward and backward relative to the charging box (100) and has a first state and a second state. In the first state, the first tray is located in the charging box (100), and each of the clamping contacts is electrically connected to the charging module. In the second state, the first tray is located in the transfer station, and the vacuum suction cup (330) is arranged in a one-to-one correspondence with the placement groove (221); A support plate (210) is connected between the tray (220) and the charging box (100); the tray (220) is slidably arranged on the upper side of the support plate (210); the support plate (210) is provided with a positive sliding wire (211) and a negative sliding wire (212) electrically connected to the charging module; each of the clamping contacts is electrically connected to a sliding contact; in the first state, the sliding contacts corresponding to all the positive contacts (223) are electrically connected to the positive sliding wire (211), and the sliding contacts corresponding to all the negative contacts (224) are electrically connected to the negative sliding wire (212).

2. The battery charging device according to claim 1, characterized in that: It also comprises a detection module. In the second state, all the clamping contacts are electrically connected to the detection module respectively. The detection module comprises a plurality of detection units. The detection units are arranged in a one-to-one correspondence with the placement slots (221).

3. The battery charging device according to claim 2, characterized in that: The transfer station is provided with a transfer plate (500), the transfer plate (500) is provided with a plurality of transfer contacts, and in the second state, the sliding contacts are connected to the transfer contacts in a one-to-one correspondence, and the transfer contacts are electrically connected to the detection module.

4. The battery charging device according to claim 2, characterized in that: A defective product basket (400) is provided between the transfer station and the unloading station.

5. The battery charging device according to claim 1, characterized in that: A fifth driving mechanism for driving the first disk to move forward and backward is provided at the front side of the transfer station.

6. The battery charging device according to claim 5, characterized in that: The fifth driving mechanism comprises a clamping member and a fifth driver for driving the clamping member to move forward and backward, and the clamping member is detachably connected to the first disk.

7. The battery charging device according to claim 6, characterized in that: The clamping member is a pneumatic clamping jaw.

8. The battery charging device according to claim 1, characterized in that: There are a plurality of charging boxes (100), and the plurality of charging boxes (100) are arranged in sequence in a transverse direction. The transposition device further comprises a fourth driving mechanism (120) for driving the base (110) to move transversely.

9. The battery charging device according to claim 8, characterized in that: The charging module includes a DC power supply and a splitter, the DC power supply is connected to the splitter via a flexible wire, and the clamping contact is electrically connected to the splitter.

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