A battery cleaning jig

Abstract

The present invention provides a battery cell cleaning jig, which relates to the technical field of new energy lithium battery production. The battery cell cleaning jig includes a cleaning mechanism, which includes a sealing component and a cleaning component; the cleaning component includes a plurality of blowing holes, which are used to blow air to the skirt; the sealing component includes a protective plate and a sealing ring, which is arranged on the surface of the protective plate facing the battery cell and encloses a protective area; and the plurality of blowing holes are arranged on the outside of the protective area. The present invention separates the battery cell skirt from other parts by arranging a sealing component, thereby reducing the possibility of dirt falling to other parts of the battery cell when cleaning the battery cell skirt, thereby improving the quality of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy lithium battery production, and in particular to a battery cell cleaning jig. Background Art

[0002] With the development of science and technology, various new energy technologies are constantly being introduced. Among them, lithium batteries have become an indispensable part of smart phones, electric vehicles, etc.

[0003] During the battery production process, the cell skirt needs to be welded, which is generally done by laser welding. However, laser welding is sensitive to dirt. When the welding position is contaminated by dirt, welding defects such as welding burst points and holes are easily generated, resulting in product scrapping and waste.

[0004] However, since the production process of battery cells is very numerous and complicated, it is very easy to be polluted and contaminated, so the skirt of the battery cell needs to be cleaned. In the prior art, the skirt of the battery cell is generally cleaned by blowing air directly. During the cleaning process, the dirt is very easy to drift and fall to other parts of the battery cell, and the contaminated battery cell is encapsulated in the shell, which will reduce the quality of the battery and affect its service life and safety performance. Summary of the invention

[0005] In view of the above technical problems, the present invention provides a battery cell cleaning jig, which separates the battery cell skirt from other parts by setting a sealing component, thereby reducing the possibility of dirt falling onto other parts of the battery cell when cleaning the battery cell skirt, thereby improving the quality of the battery. The technical solution is as follows:

[0006] The present invention specifically provides a battery cell cleaning jig including a cleaning mechanism, wherein the cleaning mechanism includes a sealing component and a cleaning component; the cleaning component includes a plurality of blowing holes, and the blowing holes are used to blow air onto the skirt; the sealing component includes a protective plate and a sealing ring, and the sealing ring is arranged on the surface of the protective plate facing the battery cell and encloses a protective area; the plurality of blowing holes are all arranged on the outside of the protective area.

[0007] Furthermore, it also includes a frame, and the blowing holes are close to the sealing ring and are evenly spaced and arranged on the protective plate / the frame.

[0008] Furthermore, the cleaning component also includes a first air pipe and an air source that are connected, and the first air pipe is connected to the air blowing hole.

[0009] Furthermore, the cleaning component also includes a gas flow monitor, and the gas flow monitor is connected to the first gas pipe.

[0010] Furthermore, the cleaning component also includes an air volume control valve, which is arranged on the first air pipe and controls the air volume in the first air pipe.

[0011] Furthermore, it also includes a displacement mechanism, which includes a first displacement component fixed on the frame, and the first displacement component is drivingly connected to the cleaning mechanism and drives the cleaning mechanism to translate.

[0012] Furthermore, the first displacement component drives the cleaning mechanism to translate toward the battery cell; the first displacement component and the cleaning mechanism are transmission-connected via a connecting component, the connecting component includes an elastomer, the elastic force of the elastomer acts between the first displacement component and the cleaning mechanism, and the direction of the elastic force is along the cleaning mechanism toward the battery cell.

[0013] Furthermore, the displacement mechanism also includes a second displacement component fixed on the frame, and the second displacement component is drivingly connected to the cleaning mechanism and drives the cleaning mechanism to rotate.

[0014] Furthermore, the protection plate is provided with a plurality of holes located in the protection area, at least one of the plurality of holes is connected to an exhaust device, and at least one of the plurality of holes is connected to the outside.

[0015] The present invention also provides a battery cell cleaning method, which includes: dividing the battery cell into a clean area and a protection area, sealing the clean area and / or the protection area so that the clean area and the protection area are not connected; and using airflow to clean the clean area.

[0016] Beneficial effects of the present invention:

[0017] Firstly, the present invention provides a sealing assembly, which seals the parts of the battery cell except the skirt between the protective plate and the sealing ring, thereby preventing dirt from falling onto the parts of the battery cell except the skirt when the battery cell skirt is cleaned, so that the entire battery cell is in a relatively clean state after the battery skirt is cleaned, thereby improving the quality of the battery, and the service life and safety performance of the battery are also improved.

[0018] Secondly, the present invention is provided with a cleaning component, which blows air to clean the skirt of the battery cell through the blowing holes, thereby reducing welding defects such as explosion points and explosion holes that may occur during subsequent skirt welding, improving the yield rate of the battery, and saving costs. In addition, the blowing holes are arranged at multiple points directly opposite the skirt, so the blowing is concentrated, the efficiency is high, and the cleaning effect is good.

[0019] Finally, the present invention also opens a dust suction hole on the protective plate in the middle of the sealing ring, and dusts other parts of the battery cell except the skirt through the dust suction hole, which further improves the cleanliness of the battery cell and further improves the quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments of the present invention are briefly introduced below.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 yes Figure 1 Bottom view of

[0023] Figure 3 yes Figure 1 The main view of

[0024] Figure 4 yes Figure 1 Side view of

[0025] Figure 5 yes Figure 2 A partial enlarged view of the .

[0026] Throughout the several views, the same reference numerals designate identical or similar parts or components.

[0027] 1. Cleaning mechanism; 11. Sealing assembly; 111. Protective plate; 112. Sealing ring; 113. Dust suction hole; 114. Air inlet hole; 12. Cleaning assembly; 121. Air blowing hole; 122. First air pipe; 123. Air line connector; 124. Gas flow monitor;

[0028] 2. Displacement mechanism; 21. First displacement assembly; 211. First driving member; 22. Second displacement assembly; 23. First connecting plate; 25. Elastic body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with 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 interpreted as limiting the present invention.

[0030] In the description of this specification, if the terms "embodiment one", "this embodiment", "in an embodiment" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example; moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in an appropriate manner.

[0031] In the description of this specification, the terms "connect", "install", "fix", "set", "have", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the description of this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0033] During the production process of battery cells, the cell skirts need to be cleaned, while the body in the middle of the cell needs to be prevented from being contaminated.

[0034] In one embodiment, Figure 1 , 2As shown in Figure 5, a battery cell cleaning jig includes a cleaning mechanism 1, and the cleaning mechanism 1 includes a sealing component 11 and a cleaning component 12. The cleaning component 12 is provided with a plurality of blowing holes 121 for blowing and cleaning the battery cell skirt. The sealing component 11 includes a protective plate 111 and a sealing ring 112, and the sealing ring 112 is arranged on the surface of the protective plate 111 facing the battery cell and encloses a protective area, so that the sealing ring 112 cooperates with the protective plate 111 to seal the body of the battery cell and expose the skirt of the battery cell. A plurality of blowing holes 121 are all arranged outside the protective area, and the blowing holes 121 blow and clean the exposed skirt of the battery cell. When in use, the battery cell and the sealing ring 112 are abutted, the body of the battery cell is placed in the area enclosed by the sealing ring 112 and the protective plate 111, and the skirt of the battery cell is placed in the open area outside the sealing ring 112; the external air source blows air to the battery cell skirt through the blowing holes 121 to complete the cleaning of the skirt. The sealing ring 112 separates the skirt from the body of the battery cell, so that dust, impurities and other dirt will not fall into the body of the battery cell during the cleaning process, thereby improving the service life and safety performance of the battery.

[0035] In other embodiments, the skirt of the battery cell can be sealed by a protective plate and a sealing ring, and a plurality of dust suction holes for dusting the skirt and a plurality of air intake holes for air intake are provided on the protective plate. Specifically, a circular protective plate with an opening in the middle and two sealing rings corresponding to the inner circumference and outer circumference of the circular protective plate are provided, and the two sealing rings are fixed on the lower surface of the circular protective plate. When in use, the skirt of the battery cell is pressed against the sealing ring so that the skirt of the battery cell, the two sealing rings and the protective plate form a sealed area, and the air exhaust device is used to evacuate the sealed space through the dust suction holes, thereby vacuuming and cleaning the skirt of the battery cell. The air intake holes can ensure air circulation in the sealed space. This embodiment can also complete the cleaning of the skirt of the battery cell, while preventing dust and other dirt from entering the body of the battery cell, thereby improving the service life and safety performance of the battery.

[0036] In one embodiment, Figure 1-3 As shown in Figure 5, the cleaning component 12 includes four first air pipes 122, four air path connectors 123 and a frame. The air path connectors 123 are connected to the air source. Each air path connector 123 is connected to a plurality of blowing holes 121 through a corresponding first air pipe 122, and blows air through the blowing holes 121. Several blowing holes 121 are directly opened on the protective plate 111, on the outside of the sealing ring 112 and close to the position of the sealing ring 112. The blowing holes 121 are directly opened on the protective plate 111. Compared with setting up a bracket to fix the blowing holes 121, the structure is more compact, the installation is tighter, and space and cost are saved. Furthermore, several blowing holes 121 are evenly spaced and opened on the protective plate 111 around the outside of the sealing ring 112, so that all positions of the battery core skirt can be cleaned, thereby improving the cleanliness of the cleaning jig.

[0037] In another embodiment, a plurality of blowing holes are evenly arranged on the frame near the outside of the sealing ring 112. Specifically, the end of the first air pipe 122 is connected to the blowing hole, the frame is fixedly connected to the first air pipe 122, and the blowing hole is arranged on the outside of the sealing ring 112 at a position facing the skirt of the battery cell, so that the blowing hole can blow air to clean the skirt. In this embodiment, the blowing hole and the sealing assembly 11 are separated, so that each part can be used separately, or when it needs to be replaced, cleaned, and repaired, it can also be disassembled and assembled separately.

[0038] In one embodiment, Figure 1 , 3 As shown, the cleaning component 12 also includes a gas flow monitor 124 and an air volume control valve. The air volume control valve is arranged on the first air pipe 122 and controls the air volume in the first air pipe 122. The gas flow monitor 124 is connected to the first air pipe 122, and the gas flow monitor 124 can monitor the gas parameters such as airflow, gas volume, and air pressure in real time, so as to adjust the flow rate and speed of the air source ventilation at any time, thereby preventing the battery core from being damaged by excessive air pressure on the one hand, and on the other hand, the flow rate and speed of the air source ventilation can be appropriately increased or reduced according to the degree of dirtiness of the battery core skirt, so as to ensure that the battery core skirt is sufficiently cleaned and avoid wasting too much energy. When in use, the air volume control valve can be adjusted in real time according to the monitoring data of the gas flow monitor 124 connected to the first air pipe 122, and the gas volume, air pressure, etc. of the gas blown out of the blowing hole 121 can be adjusted.

[0039] In another embodiment, Figure 1 , 3 As shown in Figure 4, the battery cleaning fixture also includes a displacement mechanism 2, and the displacement mechanism 2 includes a first displacement assembly 21. The first displacement assembly 21 drives the connection cleaning mechanism 1 and drives the cleaning mechanism 1 to translate. Specifically, the first displacement assembly 21 includes a first mounting seat, a vertical slide rail and a first driving member 211. The first driving member 211 and the slide rail are fixed on the first mounting seat. The cleaning mechanism 1 is slidably connected to the slide rail. The first driving member 211 drives the connection cleaning mechanism 1, so that the cleaning mechanism 1 moves up and down along the vertical slide rail under the drive of the first driving member 211, and then the protective plate 111 moves up and down synchronously. The first driving member 211 can be a linear motor, an electromagnetic push rod, etc. When in use, the feeding mechanism on the manual or production line drives the battery cell to the bottom of the protective plate 111, the first displacement assembly 21 drives the cleaning mechanism 1 to move downward so that the sealing ring 112 is close to the battery cell, and the cleaning assembly 12 starts to work and blows and cleans the skirt of the battery cell. In other embodiments, the first displacement assembly can drive the cleaning assembly to move left and right so as to face the battery cell.

[0040] In one embodiment, Figure 3 , 4As shown, the first displacement assembly 21 and the cleaning mechanism 1 are connected via a connecting assembly, and the connecting assembly includes an elastic body 25, the elastic force of the elastic body 25 acts between the first displacement assembly 21 and the cleaning mechanism 1, and the direction of the elastic force is the same as the translation direction of the cleaning mechanism 1 driven by the first displacement assembly 21. Specifically, the connecting assembly also includes a first connecting plate 23 and a second connecting plate. The first connecting plate 23 is fixedly connected to the first displacement assembly 21, and the second connecting plate is fixedly connected to the cleaning mechanism 1. The two ends of the elastic body 25 are respectively connected to the first connecting plate 23 and the second connecting plate, and the elastic force direction of the elastic body 25 is along the connecting line direction of the first connecting plate 23 and the second connecting plate. The elastic body 25 can be a rubber spring, a metal spring, and the like.

[0041] During use, the feeding mechanism places the battery cell just below the protective plate 111, the first displacement assembly 21 drives the cleaning mechanism 1 to move downward, the sealing ring 112 abuts the battery cell, and the first displacement assembly 21 continues to exert downward pressure on the cleaning mechanism 1, driving the sealing assembly 11 to exert a certain pressure on the battery cell, so that the sealing ring 112 can more tightly separate the middle of the battery cell from the skirt of the battery cell to prevent dirt from falling into the middle area of ​​the battery cell; on the other hand, since the elastomer 25 has elastic force and the direction of the elastic force is the same as the pressure direction of the first displacement assembly 21 on the sealing assembly 11, the elastomer 25 shares part of the pressure of the first displacement assembly 21, so that the battery cell is not easily squeezed and deformed due to overload, thereby further ensuring the quality of the battery.

[0042] In one embodiment, Figure 3 , 4 As shown, the displacement mechanism 2 also includes a second displacement component 22, and the second displacement component 22 drives the cleaning mechanism 1 and drives the cleaning mechanism 1 to rotate. Specifically, the second displacement component 22 includes a second mounting seat and a second driving member. The second driving member is fixed on the second mounting seat, and the output shaft of the second driving member is connected to the cleaning mechanism 1. Specifically, the second driving member drives the protective plate 111 to rotate. The second driving member can be a worm gear, an electric motor, etc. When in use, the feeding mechanism places the battery cell under the protective plate 111, and the second displacement component 22 drives the cleaning mechanism 1 to rotate so that the protective plate 111 is facing the battery cell, and the battery cell skirt is just outside the sealing ring 112. At this time, the second displacement component 22 stops working, and the first displacement component 21 starts, driving the cleaning mechanism 1 to move downward, the sealing ring 112 is close to the battery cell, the middle of the battery cell and the battery cell skirt are separated, and the cleaning component 12 starts working to blow and clean the battery cell skirt. When the loading mechanism places the battery cell offset, the second displacement assembly 22 can adjust the angle of the protective plate 111, so that the cleaning mechanism 1 can accurately clean the skirt of the battery cell, thereby improving the cleaning efficiency and further ensuring the quality of the battery.

[0043] In one embodiment, the protective plate 111 is provided with a plurality of holes located in the protective area, at least one of the plurality of holes is connected to an exhaust device, and at least one of the plurality of holes is connected to the outside. Figure 2 , 5 As shown, the protective plate 111 is also provided with a number of dust suction holes 113 for vacuuming the battery cells and a number of air intake holes 114 for air intake. The dust suction holes 113 are arranged inside the area surrounded by the four sealing rings 112. The dust suction holes 113 are connected to an external exhaust device. The air intake holes 114 are sealed with dustproof cloth, which can block dirt to a certain extent. Specifically, a through dust suction hole 113 is provided on the protective plate 111 surrounded by the sealing ring 112, and the dust suction hole 113 is connected to an external exhaust device through a second air pipe. After the battery cell is pressed against the sealing ring 112, the exhaust device works to vacuum and clean the surface of the middle area of ​​the battery cell through the dust suction hole 113. The air intake hole 114 can ensure that the air in the space surrounded by the protective plate 111, the sealing ring 112 and the battery cell remains circulated, and the dustproof cloth can prevent dirt from entering the aforementioned sealed space. This structure further improves the cleanliness of the battery cell. Furthermore, a dust sensor can be connected to the second air pipe, and the dust sensor can detect the dust concentration in the second air pipe. A maximum dust concentration that meets the cleaning requirements is set, and when it is detected that the dust concentration in the second air pipe is less than / equal to the preset dust concentration, the exhaust device stops working and the exhaust cleaning ends.

[0044] The present invention also provides a method for cleaning a battery cell, the method comprising: dividing the battery cell into a clean area and a protective area, sealing the clean area and / or the protective area so that the clean area and the protective area are not connected; and using airflow to clean the clean area. Thus, when cleaning the clean area, dirt will not fall into the protective area, so that after cleaning the clean area, the entire battery cell is in a relatively clean state, thereby improving the quality of the battery, and the battery life and safety performance are also improved.

[0045] Specifically, in one embodiment, the protection area is sealed; and the clean area is cleaned by blowing. In another embodiment, the clean area is sealed; and the clean area is cleaned by vacuuming. In another embodiment, the sealing area and the protection area are sealed separately; and the clean area is cleaned by vacuuming.

[0046] The above description of the embodiments is to facilitate ordinary technicians in the technical field to understand and apply the technology of this case. People familiar with the technology in this field can obviously easily make various modifications to these examples and apply the general principles described here to other embodiments without creative work. Therefore, this case is not limited to the above embodiments. Modifications to the following situations should all be within the scope of protection of this case: ① A new technical solution implemented based on the technical solution of the present invention and combined with existing common knowledge, the technical effect produced by the new technical solution does not exceed the technical effect of the present invention; ② The equivalent replacement of some features of the technical solution of the present invention by using known technology, the technical effect produced is the same as the technical effect of the present invention; ③ The technical solution of the present invention can be expanded, and the substantive content of the expanded technical solution does not exceed the technical solution of the present invention; ④ The equivalent transformation made by using the contents of the description and drawings of the present invention is directly or indirectly applied to other related technical fields.

Claims

1. A battery cell cleaning jig, using a battery cell cleaning method, the jig comprises a frame, a cleaning mechanism and a displacement mechanism, characterized in that: The cleaning mechanism comprises a sealing component and a cleaning component; the cleaning component comprises a plurality of blowing holes, and the blowing holes are used for blowing air to clean the skirt; the sealing component comprises a protective plate and a sealing ring, and the sealing ring is arranged on the surface of the protective plate facing the battery cell and encloses a protective area, and when the sealing ring abuts against the battery cell, the sealing ring and the protective plate seal the body of the battery cell and expose the skirt of the battery cell; the plurality of blowing holes are arranged on the outside of the protective area, and the blowing holes are close to the sealing ring and are evenly spaced on the protective plate; a plurality of holes located in the protective area are opened on the protective plate, and at least one of the plurality of holes is connected to an exhaust device, and at least one of the plurality of holes is connected to the outside, and the holes connected to the outside are sealed with dustproof cloths; The displacement mechanism includes a first displacement assembly fixed to the frame, the first displacement assembly drivingly connected to the cleaning mechanism, and driving the cleaning mechanism to translate toward the direction of the battery cell; the first displacement assembly and the cleaning mechanism are transmission-connected via a connecting assembly, the connecting assembly includes an elastic body, a first connecting plate and a second connecting plate, the elastic force of the elastic body acts between the first displacement assembly and the cleaning mechanism, and the direction of the elastic force is along the cleaning mechanism toward the battery cell, the first connecting plate is fixedly connected to the first displacement assembly, the second connecting plate is fixedly connected to the cleaning mechanism, two ends of the elastic body are respectively connected to the first connecting plate and the second connecting plate, and the direction of the elastic force of the elastic body is along the connecting direction of the first connecting plate and the second connecting plate; The method comprises: dividing the battery cell into a clean area and a protection area, sealing the clean area and / or the protection area so that the clean area and the protection area are not connected; and cleaning the clean area by using airflow.

2. A battery core cleaning jig as claimed in claim 1, characterized in that: The cleaning component also includes a first air pipe and an air source that are connected, and the first air pipe is connected to the air blowing hole.

3. A battery cell cleaning jig as claimed in claim 2, characterized in that: The cleaning component further includes a gas flow monitor, which is connected to the first gas pipe.

4. A battery core cleaning tool as claimed in claim 3, characterized in that: The cleaning component also includes an air volume control valve, which is arranged on the first air pipe and controls the air volume in the first air pipe.

5. A battery cell cleaning tool as claimed in any one of claims 1 to 4, characterized in that: The displacement mechanism further comprises a second displacement component fixed on the frame, wherein the second displacement component is drivingly connected to the cleaning mechanism and drives the cleaning mechanism to rotate.

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