Negative pressure formation device and lithium battery formation processing equipment

Abstract

The utility model provides a negative pressure formation device and lithium battery formation processing equipment. The negative pressure formation device comprises a jacking driving mechanism, an antifouling protection piece and a positioning guide mechanism, the jacking driving mechanism is used for driving the lithium battery to move in the first direction; the antifouling protection piece is used for being attached to and connected to a liquid injection opening of the lithium battery; the positioning guide mechanism is provided with a negative pressure assembly and two pole probe assemblies, the negative pressure assembly comprises a mounting body and a negative pressure body which are connected with each other, the mounting body is provided with a first negative pressure channel, and the negative pressure body is provided with a second negative pressure channel; the positioning guide mechanism is provided with a guide through groove used for positioning a lithium battery, each pole probe assembly and the negative pressure assembly are both located in the guide through groove, each pole probe assembly is used for being connected with a corresponding pole terminal of the lithium battery, and the negative pressure body pierces the antifouling protection piece through the spine part and is located in a liquid injection opening of the lithium battery. The mounting body abuts against the antifouling protection member. According to the negative pressure formation device, the manufacturing and processing convenience of the lithium battery is relatively good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lithium battery formation processing equipment, and in particular to a negative pressure formation device and lithium battery formation processing equipment. Background Art

[0002] Lithium battery formation equipment is an industrial equipment used for forming lithium batteries. Lithium battery formation equipment consists of a main body of the equipment and a negative pressure formation device. The negative pressure formation device is connected to the main body of the equipment and is used to perform negative pressure formation treatment on lithium batteries.

[0003] In the prior art, the traditional negative pressure formation device includes a device body, a nozzle mechanism and a probe mechanism. The nozzle mechanism is connected to the probe mechanism, and the nozzle mechanism and the probe mechanism are both movably connected to the device body so that the nozzle mechanism and the probe mechanism are movable relative to the device body. The device body is provided with a receiving slot for loading lithium batteries, the nozzle mechanism is provided with a nozzle part, and the nozzle part is used to connect to the liquid filling port of the lithium battery. The probe mechanism is provided with a pole probe, and the pole probe is used to connect to the pole terminal of the lithium battery to complete the negative pressure formation treatment of the lithium battery, such as the Chinese patent with patent number CN202222407744.8.

[0004] However, since the suction nozzle portion is used to dock with the liquid filling port of the lithium battery so that the suction nozzle portion is in contact and connected with the liquid filling port of the lithium battery, and the suction nozzle portion is in contact with the electrolyte in the liquid filling port of the lithium battery, the suction nozzle portion is caused to adhere to the electrolyte. When the lithium battery completes the negative pressure formation treatment, the suction nozzle portion is movable relative to the device body to be separated from the liquid filling port of the lithium battery. In the process of separating the suction nozzle portion from the liquid filling port of the lithium battery, the electrolyte adhering to the suction nozzle portion is easily affected by external force and falls near the liquid filling port of the lithium battery. The electrolyte falling near the liquid filling port of the lithium battery will crystallize and solidify, so that a crystal block is formed on the outer surface near the liquid filling port of the lithium battery, which makes the outer surface near the liquid filling port of the lithium battery more easily contaminated. In the subsequent processing steps of the lithium battery, the liquid filling port of the lithium battery needs to be welded to the sealing portion. The formation of the crystal block is not convenient for the welding process between the liquid filling port and the sealing portion of the lithium battery, which makes the manufacturing and processing convenience of the lithium battery poor. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a negative pressure formation device and a lithium battery formation processing equipment that make the manufacturing and processing of lithium batteries more convenient.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A negative pressure forming device, used to be connected to a device body, comprising:

[0008] A lifting drive mechanism, which is used to be installed on the equipment body, the lifting drive mechanism is provided with a receiving groove for loading a lithium battery, and the lifting drive mechanism is used to drive the lithium battery to move along a first direction;

[0009] an anti-fouling protective member, used for covering the liquid injection port connected to the lithium battery; and

[0010] A positioning and guiding mechanism is used to be installed on the main body of the equipment, the positioning and guiding mechanism is provided with a negative pressure component and two pole probe components, the negative pressure component is located between the two pole probe components, the negative pressure component includes a connected mounting body and a negative pressure body, the mounting body is provided with a first negative pressure channel, the negative pressure body is provided with a second negative pressure channel, the first negative pressure channel is connected to the second negative pressure channel, the negative pressure body is provided with a spike portion, and the end of the mounting body facing away from the negative pressure body is connected to the positioning and guiding mechanism; the positioning and guiding mechanism is provided with a guiding groove for positioning the lithium battery, each of the pole probe components and the negative pressure component are located in the guiding groove, each of the pole probe components is used to be connected to the corresponding pole terminal of the lithium battery, the negative pressure body pierces the anti-fouling protective component through the spike portion and is used to be located in the liquid filling port of the lithium battery, and the mounting body abuts against the anti-fouling protective component.

[0011] In one embodiment, the jacking drive mechanism includes a jacking drive component and a mechanism body, the accommodating groove is opened in the mechanism body, the power output end of the jacking drive component is connected to the mechanism body, so that the jacking drive component drives the mechanism body to move along the first direction, and the jacking drive component is used to be installed on the equipment body.

[0012] In one embodiment, the negative pressure formation device also includes a flow diversion detection mechanism, and the mechanism body is also provided with an installation through hole, the installation through hole is connected to the accommodating groove, the flow diversion detection mechanism is passed through the installation through hole and connected to the mechanism body, the flow diversion detection mechanism is provided with a flow diversion channel, the negative pressure body is passed through the flow diversion channel to connect the second negative pressure channel with the flow diversion channel, and the installation body abuts against the flow diversion detection mechanism.

[0013] In one of the embodiments, the flow diversion detection mechanism is provided with a gas flow meter, and the detection end of the gas flow meter is located in the flow diversion channel.

[0014] In one of the embodiments, a tear-off lifting portion is provided at one end of the anti-fouling protection member.

[0015] In one embodiment, the anti-fouling protective member is an anti-fouling protective tape structure.

[0016] In one embodiment, the positioning guide mechanism is further provided with a first positioning guide component and a second positioning guide component, the first positioning guide component and the second positioning guide component are arranged relative to each other to form the guide groove, the first positioning guide component is used to position one side of the lithium battery, and the second positioning guide component is used to position the other side of the lithium battery.

[0017] In one embodiment, the first positioning guide assembly is provided with a plurality of first positioning guide bodies, the plurality of first positioning guide bodies are arranged at intervals, and each of the first positioning guide bodies is used to abut against a peripheral wall on one side of the lithium battery, so that the plurality of first positioning guide bodies are used together to position one side of the lithium battery; the second positioning guide assembly is provided with a plurality of second positioning guide bodies, the plurality of second positioning guide bodies are arranged at intervals, and each of the second positioning guide bodies is used to abut against a peripheral wall on the other side of the lithium battery, so that the plurality of second positioning guide bodies are used together to position the other side of the lithium battery.

[0018] In one embodiment, the mounting body and the negative pressure body are an integrally formed structure.

[0019] A lithium battery formation processing device comprises an equipment body and a negative pressure formation device as described in any of the above embodiments, wherein the number of the negative pressure formation devices is multiple, the multiple negative pressure formation devices are arranged at intervals, and each of the negative pressure formation devices is connected to the equipment body.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] 1. Since the lifting drive mechanism is used to drive the lithium battery to move in a first direction, so that the lifting drive mechanism is used to drive the lithium battery to move in a direction close to the guide slot, the guide slot is used to position the lithium battery, each pole probe assembly and the negative pressure assembly are located in the guide slot, so that each pole probe assembly is used to contact the corresponding pole terminal of the lithium battery under the action of the positioning guide mechanism, so that each pole probe assembly is used to connect with the corresponding pole terminal of the lithium battery, and at the same time, the negative pressure assembly is used to align with the injection port of the lithium battery under the action of the positioning guide mechanism, so that the negative pressure body pierces the anti-fouling protection member through the spike portion to be located in the injection port of the lithium battery, so that the negative pressure body penetrates into the injection port of the lithium battery, so that the second negative pressure channel is located in the injection port of the lithium battery, the first negative pressure channel is connected to the second negative pressure channel, so that the gas generated by the formation treatment of the lithium battery is discharged to the outside along the first negative pressure channel and the second negative pressure channel, and the mounting body abuts against the anti-fouling protection member to seal the injection port of the lithium battery, thereby completing the negative pressure formation treatment of the lithium battery;

[0022] 2. Then, after a predetermined processing time, the lifting drive mechanism is used to drive the lithium battery to move in a direction away from the guide slot, so that each pole probe assembly is used to separate from the pole terminal corresponding to the lithium battery, and at the same time, the negative pressure body is pulled out from the liquid injection port of the lithium battery to separate the negative pressure body from the liquid injection port of the lithium battery, and the installation body is separated from the anti-fouling protection member to complete the unloading process of the lithium battery;

[0023] 3. Since the negative pressure body is inserted into the liquid injection port of the lithium battery, so that the negative pressure body contacts the electrolyte in the liquid injection port of the lithium battery, the electrolyte adheres to the negative pressure body. When the lithium battery completes the negative pressure formation treatment, the negative pressure body is pulled out from the liquid injection port of the lithium battery to separate the negative pressure body from the liquid injection port of the lithium battery, and the mounting body is separated from the anti-fouling protective member. In the process of separating the negative pressure body from the liquid injection port of the lithium battery, the electrolyte adhered to the negative pressure body is easily affected by external force and falls near the liquid injection port of the lithium battery. The anti-fouling protective member is used to cover the liquid injection port connected to the lithium battery, so that the outer surface near the liquid injection port of the lithium battery is covered by the anti-fouling protective member, so that the electrolyte adhered to the negative pressure body is easily affected by external force and falls on the anti-fouling protective member, thereby releasing the negative pressure body. The invention solves the problem in the prior art that the electrolyte is easy to drop near the filling port of the lithium battery, that is, it solves the problem in the prior art that the electrolyte dropped near the filling port of the lithium battery will crystallize and solidify, so that the outer surface near the filling port of the lithium battery is formed with crystal blocks, thereby avoiding the problem in the prior art that the outer surface near the filling port of the lithium battery is easy to be contaminated, so that the outer surface near the filling port of the lithium battery is difficult to be contaminated. In the subsequent processing process of the lithium battery, the staff can tear off the anti-fouling protection part to carry out the welding process of the sealing part and the filling port of the lithium battery. Under the action of the anti-fouling protection part, the outer surface near the filling port of the lithium battery is flat and clean, which is conducive to the welding process of the filling port of the lithium battery and the sealing part, thereby making the production and processing of the lithium battery more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a negative pressure formation device according to an embodiment;

[0026] Figure 2 for Figure 1 A schematic structural diagram of a lifting drive mechanism of a negative pressure forming device shown;

[0027] Figure 3 for Figure 1 A structural schematic diagram of a positioning and guiding mechanism of a negative pressure forming device shown;

[0028] Figure 4 for Figure 3 A structural schematic diagram of the positioning and guiding mechanism from another perspective shown;

[0029] Figure 5 for Figure 4 A cross-sectional view along line AA of the positioning guide mechanism shown. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] like Figures 1 to 5 As shown, a negative pressure forming device 10 according to an embodiment is used to be connected to a device body.

[0034] Furthermore, the negative pressure formation device 10 includes a lifting drive mechanism 100, an anti-fouling protection member 200 and a positioning guide mechanism 300; the lifting drive mechanism 100 is used to be installed on the main body of the device, and the lifting drive mechanism 100 is provided with a receiving groove 121 for loading the lithium battery 20, and the lifting drive mechanism 100 is used to drive the lithium battery 20 to move along the first direction z; the anti-fouling protection member 200 is used to cover the injection port connected to the lithium battery 20; the positioning guide mechanism 300 is used to be installed on the main body of the device, and the positioning guide mechanism 300 is provided with a negative pressure component 310 and two pole probe components 320, the negative pressure component 310 is located between the two pole probe components 320, and the negative pressure component 310 includes a mounting body 311 and a negative pressure body 312 connected to each other, and the mounting body 311 is provided with a negative pressure body 312. There is a first negative pressure channel 3111, and the negative pressure body 312 is provided with a second negative pressure channel 3121. The first negative pressure channel 3111 is connected to the second negative pressure channel 3121. The negative pressure body 312 is provided with a spike portion 3122. The end of the mounting body 311 away from the negative pressure body 312 is connected to the positioning guide mechanism 300; the positioning guide mechanism 300 is provided with a guide groove 3311 for positioning the lithium battery 20, and each pole probe assembly 320 and the negative pressure assembly 310 are located in the guide groove 3311. Each pole probe assembly 320 is used to be connected to the corresponding pole terminal of the lithium battery 20. The negative pressure body 312 pierces the anti-fouling protective component 200 through the spike portion 3122 and is located in the liquid filling port of the lithium battery 20. The mounting body 311 abuts against the anti-fouling protective component 200.

[0035] In this embodiment, the mounting body 311 is in contact with the anti-fouling protection member 200, so that the anti-fouling protection member 200 is used to separate the mounting body 311 from the electrolyte in the injection port of the lithium battery 20. Each pole probe assembly 320 is used to be electrically connected to an external power source. The lifting drive mechanism 100 is used to drive the lithium battery 20 to move along the first direction z, so that the lifting drive mechanism 100 is used to drive the lithium battery 20 to move toward or away from the guide slot 3311.

[0036] In the negative pressure formation device 10, since the lifting drive mechanism 100 is used to drive the lithium battery 20 to move along the first direction z, the lifting drive mechanism 100 is used to drive the lithium battery 20 to move in the direction close to the guide groove 3311, and the guide groove 3311 is used to position the lithium battery 20. Each pole probe assembly 320 and the negative pressure assembly 310 are located in the guide groove 3311, so that each pole probe assembly 320 is used to contact the corresponding pole terminal of the lithium battery 20 under the action of the positioning guide mechanism 300, so that each pole probe assembly 320 is used to connect with the corresponding pole terminal of the lithium battery 20, and at the same time, the negative pressure assembly 310 is located in the positioning guide mechanism 300. The negative pressure body 312 is used to align with the liquid injection port of the lithium battery 20 under the action of the negative pressure body 312, so that the negative pressure body 312 penetrates the anti-fouling protection member 200 through the spike portion 3122 and is located in the liquid injection port of the lithium battery 20, so that the negative pressure body 312 penetrates into the liquid injection port of the lithium battery 20, so that the second negative pressure channel 3121 is located in the liquid injection port of the lithium battery 20, and the first negative pressure channel 3111 is connected with the second negative pressure channel 3121, so that the gas generated by the formation treatment of the lithium battery 20 is discharged to the outside along the first negative pressure channel 3111 and the second negative pressure channel 3121, and the mounting body 311 is in contact with the anti-fouling protection member 200 to seal the liquid injection port of the lithium battery 20, thereby completing the negative pressure formation treatment of the lithium battery 20;

[0037] Then, after a predetermined processing time, the lifting drive mechanism 100 is used to drive the lithium battery 20 to move in a direction away from the guide slot 3311, so that each pole probe assembly 320 is used to separate from the pole terminal corresponding to the lithium battery 20, and at the same time, the negative pressure body 312 is pulled out from the liquid injection port of the lithium battery 20, so that the negative pressure body 312 is separated from the liquid injection port of the lithium battery 20, and the installation body 311 is separated from the anti-fouling protection member 200, so as to complete the unloading process of the lithium battery 20;

[0038] Since the negative pressure body 312 is inserted into the injection port of the lithium battery 20, so that the negative pressure body 312 is in contact with the electrolyte in the injection port of the lithium battery 20, the negative pressure body 312 is adhered to the electrolyte. When the lithium battery 20 completes the negative pressure formation treatment, the negative pressure body 312 is pulled out from the injection port of the lithium battery 20 to separate the negative pressure body 312 from the injection port of the lithium battery 20, and the mounting body 311 is separated from the anti-fouling protective member 200. In the process of separating the negative pressure body 312 from the injection port of the lithium battery 20, the electrolyte adhered to the negative pressure body 312 is easily dropped near the injection port of the lithium battery 20 by the action of external force. The anti-fouling protective member 200 is used to cover the injection port connected to the lithium battery 20, so that the outer surface near the injection port of the lithium battery 20 is covered by the anti-fouling protective member 200, so that the electrolyte adhered to the negative pressure body 312 is affected by the external force. It is easier to fall onto the anti-fouling protective part 200, thereby solving the problem in the prior art that the electrolyte is easier to fall near the filling port of the lithium battery 20, that is, it solves the problem in the prior art that the electrolyte dropped near the filling port of the lithium battery 20 will crystallize and solidify, so that the outer surface near the filling port of the lithium battery 20 forms a crystal block, thereby avoiding the problem in the prior art that the outer surface near the filling port of the lithium battery 20 is easier to be contaminated, so that the outer surface near the filling port of the lithium battery 20 is more difficult to be contaminated. In the subsequent processing steps of the lithium battery 20, the staff can tear off the anti-fouling protective part to carry out the welding process of the sealing part and the filling port of the lithium battery 20. Under the action of the anti-fouling protective part, the outer surface near the filling port of the lithium battery 20 is flat and clean, which is conducive to the welding process of the filling port of the lithium battery 20 and the sealing part, thereby making the production and processing of the lithium battery 20 more convenient.

[0039] like Figure 1 to Figure 2 As shown, in one embodiment, the jacking drive mechanism 100 includes a jacking drive component 110 and a mechanism body 120, a receiving groove 121 is opened in the mechanism body 120, and a power output end of the jacking drive component 110 is connected to the mechanism body 120, so that the jacking drive component 110 drives the mechanism body 120 to move along a first direction z, and the jacking drive component 110 is used to be installed on the equipment body.

[0040] like Figure 1 to Figure 2 As shown, in one embodiment, the negative pressure formation device 10 also includes a flow diversion detection mechanism 400, and the mechanism body 120 is also provided with a mounting hole 122, the mounting hole 122 is connected to the accommodating groove 121, the flow diversion detection mechanism 400 is penetrated through the mounting hole 122 and connected to the mechanism body 120, the flow diversion detection mechanism 400 is provided with a flow diversion channel 410, the negative pressure body 312 is penetrated through the flow diversion channel 410, so that the second negative pressure channel 3121 is connected to the flow diversion channel 410, and the mounting body 311 is in contact with the flow diversion detection mechanism 400.

[0041] like Figure 1 to Figure 2 As shown, in one embodiment, the flow guide detection mechanism 400 is provided with a gas flow meter 420 , and the detection end of the gas flow meter 420 is located in the flow guide channel 410 .

[0042] It should be noted that the working principle of the gas flow meter 420 for detecting gas flow is the existing technology.

[0043] like Figure 1 As shown, in one embodiment, a tear-off and lifting portion 210 is provided at one end of the anti-fouling protection member 200 .

[0044] In one embodiment, the anti-fouling protective member 200 is an anti-fouling protective tape structure.

[0045] like Figure 1 , Figures 3 to 5 As shown, in one embodiment, the positioning guide mechanism 300 is further provided with a first positioning guide component 330 and a second positioning guide component 340. The first positioning guide component 330 and the second positioning guide component 340 are arranged opposite to each other to form a guide groove 3311. The first positioning guide component 330 is used to position one side of the lithium battery 20, and the second positioning guide component 340 is used to position the other side of the lithium battery 20.

[0046] like Figure 1 , Figures 3 to 5 As shown, in one embodiment, the first positioning guide assembly 330 is provided with a plurality of first positioning guide bodies 331, the plurality of first positioning guide bodies 331 are arranged at intervals, and each first positioning guide body 331 is used to abut against a peripheral wall on one side of the lithium battery 20, so that the plurality of first positioning guide bodies 331 are used together to position one side of the lithium battery 20; the second positioning guide assembly 340 is provided with a plurality of second positioning guide bodies 341, the plurality of second positioning guide bodies 341 are arranged at intervals, and each second positioning guide body 341 is used to abut against a peripheral wall on the other side of the lithium battery 20, so that the plurality of second positioning guide bodies 341 are used together to position the other side of the lithium battery 20.

[0047] In one embodiment, the mounting body 311 and the negative pressure body 312 are an integrally formed structure.

[0048] The present disclosure also provides a lithium battery 20 formation processing equipment, including an equipment body and the negative pressure formation device 10 described in any of the above embodiments, the number of the negative pressure formation devices 10 is multiple, the multiple negative pressure formation devices 10 are arranged at intervals, and each negative pressure formation device 10 is connected to the equipment body.

[0049] Compared with the prior art, the present invention has at least the following advantages:

[0050] 1. Since the lifting drive mechanism 100 is used to drive the lithium battery 20 to move along the first direction z, so that the lifting drive mechanism 100 is used to drive the lithium battery 20 to move in the direction close to the guide groove 3311, the guide groove 3311 is used to position the lithium battery 20, each pole probe assembly 320 and the negative pressure assembly 310 are located in the guide groove 3311, so that each pole probe assembly 320 is used to contact the corresponding pole terminal of the lithium battery 20 under the action of the positioning guide mechanism 300, so that each pole probe assembly 320 is used to connect with the corresponding pole terminal of the lithium battery 20, and at the same time, the negative pressure assembly 310 is used to contact the corresponding pole terminal of the lithium battery 20 under the action of the positioning guide mechanism 300. The negative pressure body 312 is aligned with the liquid injection port of the lithium battery 20 so that the negative pressure body 312 pierces the anti-fouling protection member 200 through the spike portion 3122 and is located in the liquid injection port of the lithium battery 20, so that the negative pressure body 312 penetrates into the liquid injection port of the lithium battery 20, so that the second negative pressure channel 3121 is located in the liquid injection port of the lithium battery 20, and the first negative pressure channel 3111 is connected to the second negative pressure channel 3121, so that the gas generated by the formation treatment of the lithium battery 20 is discharged to the outside along the first negative pressure channel 3111 and the second negative pressure channel 3121, and the mounting body 311 is in contact with the anti-fouling protection member 200 to seal the liquid injection port of the lithium battery 20, thereby completing the negative pressure formation treatment of the lithium battery 20;

[0051] 2. Then, after a predetermined processing time, the lifting drive mechanism 100 is used to drive the lithium battery 20 to move in a direction away from the guide slot 3311, so that each pole probe assembly 320 is used to separate from the pole terminal corresponding to the lithium battery 20, and at the same time, the negative pressure body 312 is pulled out from the liquid injection port of the lithium battery 20, so that the negative pressure body 312 is separated from the liquid injection port of the lithium battery 20, and the installation body 311 is separated from the anti-fouling protection member 200, so as to complete the unloading process of the lithium battery 20;

[0052] 3. Since the negative pressure body 312 is inserted into the injection port of the lithium battery 20, so that the negative pressure body 312 is in contact with the electrolyte in the injection port of the lithium battery 20, the negative pressure body 312 is adhered to the electrolyte. When the lithium battery 20 completes the negative pressure formation treatment, the negative pressure body 312 is pulled out from the injection port of the lithium battery 20 to separate the negative pressure body 312 from the injection port of the lithium battery 20, and the mounting body 311 is separated from the anti-fouling protective member 200. In the process of separating the negative pressure body 312 from the injection port of the lithium battery 20, the electrolyte adhered to the negative pressure body 312 is easily dropped near the injection port of the lithium battery 20 by the action of external force. The anti-fouling protective member 200 is used to cover the injection port connected to the lithium battery 20, so that the outer surface near the injection port of the lithium battery 20 is covered by the anti-fouling protective member 200, so that the electrolyte adhered to the negative pressure body 312 is affected by the external force. The anti-fouling protective part 200 is easier to fall on, thereby solving the problem in the prior art that the electrolyte is easier to fall near the filling port of the lithium battery 20, that is, it solves the problem that the electrolyte dropped near the filling port of the lithium battery 20 in the prior art will crystallize and solidify, so that the outer surface near the filling port of the lithium battery 20 forms a crystal block, thereby avoiding the problem that the outer surface near the filling port of the lithium battery 20 in the prior art is easier to be contaminated, so that the outer surface near the filling port of the lithium battery 20 is more difficult to be contaminated. In the subsequent processing steps of the lithium battery 20, the staff can tear off the anti-fouling protective part to carry out the welding process of the sealing part and the filling port of the lithium battery 20. Under the action of the anti-fouling protective part, the outer surface near the filling port of the lithium battery 20 is flat and clean, which is conducive to the welding process of the filling port of the lithium battery 20 and the sealing part, thereby making the production and processing of the lithium battery 20 more convenient.

[0053] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A negative pressure formation device, used to connect with the equipment body, characterized in that: include: A lifting drive mechanism, which is used to be installed on the equipment body, the lifting drive mechanism is provided with a receiving groove for loading a lithium battery, and the lifting drive mechanism is used to drive the lithium battery to move along a first direction; An anti-fouling protective member, used for covering the liquid injection port connected to the lithium battery; as well as A positioning and guiding mechanism is used to be installed on the main body of the equipment, the positioning and guiding mechanism is provided with a negative pressure component and two pole probe components, the negative pressure component is located between the two pole probe components, the negative pressure component includes a connected mounting body and a negative pressure body, the mounting body is provided with a first negative pressure channel, the negative pressure body is provided with a second negative pressure channel, the first negative pressure channel is connected to the second negative pressure channel, the negative pressure body is provided with a spike portion, and the end of the mounting body facing away from the negative pressure body is connected to the positioning and guiding mechanism; the positioning and guiding mechanism is provided with a guiding groove for positioning the lithium battery, each of the pole probe components and the negative pressure component are located in the guiding groove, each of the pole probe components is used to be connected to the corresponding pole terminal of the lithium battery, the negative pressure body pierces the anti-fouling protective component through the spike portion and is used to be located in the liquid filling port of the lithium battery, and the mounting body abuts against the anti-fouling protective component.

2. The negative pressure formation device according to claim 1, characterized in that: The jacking drive mechanism includes a jacking drive component and a mechanism body, the accommodating groove is opened in the mechanism body, the power output end of the jacking drive component is connected to the mechanism body, so that the jacking drive component drives the mechanism body to move along the first direction, and the jacking drive component is used to be installed on the equipment body.

3. The negative pressure formation device according to claim 2, characterized in that: The negative pressure formation device also includes a flow diversion detection mechanism, the mechanism body is also provided with an installation through hole, the installation through hole is connected to the accommodating groove, the flow diversion detection mechanism is passed through the installation through hole and is connected to the mechanism body, the flow diversion detection mechanism is provided with a flow diversion channel, the negative pressure body is passed through the flow diversion channel to connect the second negative pressure channel with the flow diversion channel, and the installation body abuts against the flow diversion detection mechanism.

4. The negative pressure formation device according to claim 3, characterized in that: The flow diversion detection mechanism is provided with a gas flow meter, and the detection end of the gas flow meter is located in the flow diversion channel.

5. The negative pressure formation device according to claim 1, characterized in that: One end of the anti-fouling protection piece is provided with a tearing and lifting portion.

6. The negative pressure formation device according to claim 1, characterized in that: The anti-fouling protective member is an anti-fouling protective tape structure.

7. The negative pressure formation device according to claim 1, characterized in that: The positioning and guiding mechanism is also provided with a first positioning and guiding component and a second positioning and guiding component. The first positioning and guiding component are arranged opposite to each other to form the guiding groove. The first positioning and guiding component is used to position one side of the lithium battery, and the second positioning and guiding component is used to position the other side of the lithium battery.

8. The negative pressure formation device according to claim 7, characterized in that: The first positioning guide assembly is provided with a plurality of first positioning guide bodies, the plurality of first positioning guide bodies are arranged at intervals, and each of the first positioning guide bodies is used to abut against a peripheral wall on one side of the lithium battery, so that the plurality of first positioning guide bodies are used together to position one side of the lithium battery; the second positioning guide assembly is provided with a plurality of second positioning guide bodies, the plurality of second positioning guide bodies are arranged at intervals, and each of the second positioning guide bodies is used to abut against a peripheral wall on the other side of the lithium battery, so that the plurality of second positioning guide bodies are used together to position the other side of the lithium battery.

9. The negative pressure formation device according to claim 1, characterized in that: The mounting body and the negative pressure body are an integrally formed structure.

10. A lithium battery formation treatment equipment, characterized in that: It comprises an equipment body and the negative pressure forming device according to any one of claims 1 to 9, wherein the number of the negative pressure forming devices is multiple, the multiple negative pressure forming devices are arranged at intervals, and each of the negative pressure forming devices is connected to the equipment body.

Images