Battery cell conveying and storing device and battery cell conveying equipment

Abstract

The utility model relates to the field of battery cell production, and discloses a battery cell conveying and storing device and battery cell conveying equipment.The battery cell conveying and storing device comprises a bearing part and a covering part, a storage cavity is formed in the bearing part and used for storing battery cells, and a covering cavity is formed in the side face, facing the bearing part, of the covering part and used for covering the battery cells; a first avoiding groove is formed in the inner wall, away from the bearing piece, of the covering cavity. According to the battery, the covering cavity is formed in the covering part, the battery cell is covered and protected through the covering cavity, the first avoiding groove is formed in the covering cavity, and the pole of the battery cell is avoided through the first avoiding groove, so that damage caused by contact between the inner wall of the covering cavity and the pole is avoided, and the effect of protecting the pole is achieved.

Description

Technical Field

[0001] This application relates to the field of battery cell production, and particularly to a battery cell conveying and storing device and a battery cell conveying equipment. Background Art

[0002] In the industrial chain of battery cell production, subsequent packaging, storage, and transportation, as an important energy storage unit, the packaging solution of square battery cells is directly related to the safety, protection effect, and transportation efficiency of battery cells. In the current market, the packaging solutions of square battery cells generally adopt a combined structure of a packaging material base and an upper cover, aiming to achieve the stable stacking and protection of battery cells. However, this traditional packaging solution still faces many challenges and deficiencies in practical applications.

[0003] During the stacking process of battery cells, since the battery cell poles (i.e., the positive and negative electrode leads) are usually relatively fragile and protrude from the battery cell surface, they are extremely likely to become stress points. Traditional packaging solutions often fail to fully consider the pressure-bearing protection of the poles, resulting in deformation, fracture, and other damages of the poles during transportation or storage due to external forces such as vibration and extrusion, thereby affecting the electrical performance and service life of the battery cells. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a battery cell conveying and storing device and a battery cell conveying equipment.

[0005] To achieve the above purpose, the technical solution adopted in this application is as follows:

[0006] This application provides:

[0007] A battery cell conveying and storing device, comprising:

[0008] A carrier, on which a storage cavity is formed, and the storage cavity is used for storing battery cells;

[0009] A covering member, on the side surface of the covering member facing the carrier, a covering cavity is formed, the covering cavity is used for covering the battery cells, and a first avoidance groove is formed on the inner wall of the covering cavity far from the carrier.

[0010] Further, a second avoidance groove is formed on the inner wall of the covering cavity far from the carrier, and a first through hole is formed through the second avoidance groove, and the first through hole is communicated with the outside.

[0011] Further, N second through holes are formed on the inner wall of the covering cavity far from the carrier, satisfying: N≥1.

[0012] Further, a first inclined surface is arranged at the opening of the covering cavity, and the included angle between the first inclined surface and the vertical plane is α, satisfying: 45°≤α<90°.

[0013] Further, an arc transition is made at the connection between the second avoidance groove and the covering cavity.

[0014] Further, a second inclined surface is provided at the opening of the storage cavity, and the included angle between the second inclined surface and the vertical surface is β, satisfying: 45° ≤ β < 90°.

[0015] Further, the number of corners of the carrier and the covering member is the same, each having M corners. First chamfers are provided at X corners of the carrier and X corners of the covering member, and second chamfers are provided at Y corners of the carrier and Y corners of the covering member, satisfying: X ≥ 1, Y ≥ 1, M ≥ X + Y.

[0016] Further, the first chamfer is a rounded corner or an oblique angle, and the second chamfer is a rounded corner or an oblique angle.

[0017] Further, the cross-section of the second through hole is circular, elliptical or polygonal.

[0018] The present application provides a battery cell conveying device, including the battery cell conveying and storing device described in any one of the above.

[0019] In the present application, a covering cavity is opened on the covering member to cover and protect the battery cell through the covering cavity, and a first avoidance groove is opened on the covering cavity to avoid the pole column of the battery cell through the first avoidance groove, so that the inner wall of the covering cavity will not contact the pole column and cause damage, thus playing a role in protecting the pole column.

[0020] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically gives preferred embodiments and cooperates with the attached drawings to make detailed descriptions as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1 Shows a schematic structural diagram of the carrier, the covering member, and the battery cell in an assembled state of the present application;

[0023] Figure 2 Shows a schematic structural diagram of the carrier, the covering member, and the battery cell in an exploded state of the present application;

[0024] Figure 3 Shows a schematic bottom view of the covering member of the present application;

[0025] Figure 4 shows a cross-sectional schematic view taken along line B-B of the present application Figure 3 ;

[0026] Figure 5 shows a schematic enlarged structure view at position A of the present application Figure 4 ;

[0027] Figure 6 shows a schematic top view of the carrier of the present application

[0028] Figure 7 shows a cross-sectional schematic view taken along line C-C of the present application Figure 6 ;

[0029] Description of main component symbols:

[0030] 100 - carrier; 200 - covering member; 300 - storage cavity; 400 - covering cavity; 500 - first relief groove; 600 - second relief groove; 700 - first through hole; 800 - second through hole; 900 - first chamfer; 1000 - second chamfer Detailed description of the specific implementation mode

[0031] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined

[0034] In this application, unless otherwise clearly specified or defined, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly specified or defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0036] During the stacking and palletizing process of the battery cells, the battery cells are usually placed one by one into the trays for palletizing. However, during the stacking process, the battery cell terminals are very likely to be damaged due to stress, such as deformation and fracture, which will affect the safety performance and service life of the battery cells. In view of this situation, the present application provides a first avoidance groove 500 in the covering cavity 400 to avoid the battery cell terminals, preventing damage caused by the contact between the inner wall (inner top wall) of the covering cavity 400 and the terminals.

[0037] The present application provides a battery cell conveying and storing device, including a carrier 100 and a covering member 200. Among them, a storage cavity 300 is formed on the carrier 100, and the storage cavity 300 is used for storing battery cells. A covering cavity 400 is formed on the side of the covering member 200 facing the carrier 100, and the covering cavity 400 is used for covering the battery cells. A first avoidance groove 500 is formed on the inner wall of the covering cavity 400 away from the carrier 100.

[0038] Refer to Figure 1 、 Figure 2 and Figure 3As shown, both the carrier 100 and the covering member 200 are plate-shaped. In this application, a plurality of storage cavities 300 are formed on the upper surface of the carrier 100. The storage cavities 300 are mainly used to accommodate the battery cells. Then, a covering member 200 is arranged above the carrier 100, and a covering cavity 400 with the same number and matching the storage cavities 300 is formed on the bottom surface of the covering member 200. The covering cavity 400 mainly protects the top part of the battery cell. Further, in order to prevent the pole column at the top of the battery cell from contacting the inner top wall of the covering cavity 400 and causing damage, a first avoidance groove 500 is formed on the inner top wall of the covering cavity 400. The pole column is avoided through the first avoidance groove 500, so that the pole column does not contact the inner top wall of the covering cavity 400.

[0039] Continue to refer to Figure 2 As shown, in this embodiment, the battery cell has two pole columns, namely a negative pole column and a positive pole column. Correspondingly, two first avoidance grooves 500 should be formed on the inner top wall of the covering cavity 400, and the positions of the two first avoidance grooves 500 are the same as the positions of the two pole columns, so that the pole columns are located in the first avoidance grooves 500.

[0040] Further, the shape of the first avoidance groove 500 should be the same as the shape of the pole column. For example, when the shape of the pole column is circular or polygonal, the first avoidance groove 500 should also be circular or polygonal, and the first avoidance groove 500 should be slightly larger than the pole column, so that the pole column does not contact the inner wall of the first avoidance groove 500.

[0041] In this embodiment, in addition to the first avoidance groove 500 formed on the inner top wall of the covering cavity 400 for avoiding the pole column of the battery cell, an avoidance hole for avoiding the liquid injection port can also be formed on the inner top wall of the covering cavity 400.

[0042] The storage cavities 300 and the covering cavities 400 have the same shape and are adapted to the shape of the battery cell. The shape of the battery cell can be circular, rectangular or other shapes, so the shapes of the storage cavities 300 and the covering cavities 400 can also be circular, rectangular or other shapes. In this embodiment, the battery cell, the storage cavities 300 and the covering cavities 400 are all rectangular.

[0043] A second avoidance groove 600 is formed on the inner wall of the covering cavity 400 away from the carrier 100, and a first through hole 700 is formed through the second avoidance groove 600, and the first through hole 700 is communicated with the outside.

[0044] The battery cell in this application has an explosion-proof valve. When the battery cell is charged, short-circuited, or the external environmental temperature is too high, etc., too much gas may be generated inside the battery cell, resulting in an increase in the internal pressure of the battery cell, and then serious consequences such as explosion and fire may occur. Generally, the explosion-proof valve is used to release the generated gas pressure, so as to prevent the battery cell from over-expanding and catching fire or exploding.

[0045] During the production and transportation of battery cells, the explosion-proof valves of the battery cells are often covered. Since the explosion-proof valves are blocked and pressed, when the gas pressure inside the battery cell is too high, the gas cannot be quickly discharged through the explosion-proof valves, which may cause combustion or explosion.

[0046] Referring to Figure 3 and Figure 4 As shown, the present application avoids pressing on the position of the explosion-proof valve by opening a second avoidance groove 600 on the inner top wall of the covering cavity 400. Furthermore, in order to enable the high-pressure gas to be discharged through the position of the explosion-proof valve, a first through hole 700 is opened on the inner top wall of the second avoidance groove 600. When the gas inside the battery cell is greater than the threshold value, the gas is discharged through the explosion-proof valve and then through the passage formed by the second avoidance groove 600 and the first through hole 700.

[0047] The shape of the second avoidance groove 600 is adapted to the shape of the explosion-proof valve, and the second avoidance groove 600 should be larger than the explosion-proof valve. In this embodiment, the second avoidance groove 600 is rectangular.

[0048] N second through holes 800 are opened on the inner wall of the covering cavity 400 away from the carrier 100, satisfying: N≥1.

[0049] Referring to Figures 1 to 3 As shown, when the battery cell needs to be covered by the covering member 200 when placed in the storage cavity 300, that is, when the carrier 100 and the covering member 200 are cooperatively assembled, in order to prevent gas assembly in the covering cavity 400 from causing assembly problems, a second through hole 800 needs to be opened on the inner top wall of the covering cavity 400 to quickly discharge the gas inside it, so that the covering cavity 400 can quickly cover the battery cell to complete the cooperative installation.

[0050] It should be noted that the assembly problem caused by gas here specifically means that there is air in the covering cavity 400 before assembly. If the battery cell is suddenly covered so that the top of the battery cell is located in the covering cavity 400, the gas in the covering cavity 400 will be compressed, thus preventing the battery cell from being covered. Therefore, the present application opens the second through hole 800 to quickly discharge the gas in the covering cavity 400 to prevent this situation from occurring.

[0051] In this embodiment, the above-mentioned N is 2, that is, two second through holes 800 are opened on the inner top wall of the covering cavity 400. Specifically, the two second through holes 800 are respectively located on both sides of the second avoidance groove 600. In other embodiments, the number of the second through holes 800 can also be other numbers, and the second through holes 800 can also be arranged at other positions. The number and position of the second through holes 800 are not specifically limited here.

[0052] In this embodiment, the cross-section of the second through hole 800 can be set to be circular, elliptical or polygonal according to needs.

[0053] The opening of the covering cavity 400 is provided with a first inclined surface, and the included angle between the first inclined surface and the vertical plane is α, satisfying: 45° ≤ α < 90°.

[0054] Refer to Figure 4 As shown, when the carrier 100 and the covering member 200 are matched, in order to facilitate the top of the battery cell to enter the covering cavity 400, a first inclined surface is provided at the opening corner of the covering cavity 400 communicating with the outside, that is, the battery cell is guided by the first inclined surface to facilitate the battery cell to smoothly enter the covering cavity 400.

[0055] The inclination angle α of the first inclined surface can be angles such as 45°, 50°, 60°, 70°, 80°, 85°, etc. In this embodiment, the included angle between the first inclined surface and the vertical plane is 60°. Other angles can also be selected according to the actual situation, and specific limitations are not made here.

[0056] The connection between the second avoidance groove 600 and the covering cavity 400 is provided with an arc transition.

[0057] Refer to Figure 4 and Figure 5 As shown, in order to further avoid the explosion-proof valve, the opening of the connection between the second avoidance groove 600 and the covering cavity 400 is provided with an arc transition, so as to prevent the inner wall of the second avoidance groove 600 from contacting the explosion-proof valve; in addition to setting the connection between the second avoidance groove 600 and the covering cavity 400 as an arc, it can also be set as an inclined surface.

[0058] The opening of the storage cavity 300 is provided with a second inclined surface, and the included angle between the second inclined surface and the vertical plane is β, satisfying: 45° ≤ β < 90°.

[0059] Refer to Figure 6 and Figure 7 As shown, in order to make the battery cell easier to be placed in each storage cavity 300, a second inclined surface is provided at the opening corner of each storage cavity 300 to guide the battery cell about to enter the storage cavity 300. The included angle between the second inclined surface and the vertical plane is β, where β can be angles such as 45°, 50°, 60°, 70°, 80°, 85°, etc. In this embodiment, the second inclination angle is 60°.

[0060] The carrier 100 and the covering member 200 have the same number of corners, each having M corners. First chamfers 900 are provided at X corners of the carrier 100 and X corners of the covering member 200, and second chamfers 1000 are provided at Y corners of the carrier 100 and Y corners of the covering member 200, satisfying: X ≥ 1, Y ≥ 1, M ≥ X + Y.

[0061] Referring to Figures 1 to 3 As shown, at least one corner of the carrier 100 and the covering member 200 is provided with a first chamfer 900, and at least one corner is provided with a second chamfer 1000, and the parameters of the first chamfer 900 and the second chamfer 1000 are different. The purpose of this is to provide a reference positioning on the automated equipment so that the carrier 100 can be accurately placed at a predetermined position.

[0062] In this embodiment, both the carrier 100 and the covering member 200 are rectangular, that is, both the carrier 100 and the covering member 200 have four corners, and the corner shapes of the carrier 100 and the covering member 200 at the same position are the same. Since the shapes of the carrier 100 and the covering member 200 are the same, the carrier 100 is taken as a detailed example here. Specifically, three of the corners of the carrier 100 are the first chamfer 900, and the other corner is the second chamfer 1000. In other embodiments, the number X of the first chamfers 900 can be 1, 2, or 3; correspondingly, the number Y of the second chamfers 1000 can also be 1, 2, or 3, as long as the relationship M≥X + Y is satisfied.

[0063] In other embodiments, the carrier 100 and the covering member 200 can also be in shapes such as circular, triangular, pentagonal, hexagonal, etc.

[0064] When the carrier 100 and the covering member 200 are circular, the above-mentioned first chamfer 900 and second chamfer 1000 can be omitted, and other structures can be used for positioning, such as protrusions, grooves, etc. for positioning.

[0065] When the carrier 100 and the covering member 200 are in shapes such as triangular, pentagonal, hexagonal, etc., the number of the first chamfers 900 and the second chamfers 1000 should satisfy the relationship M≥X + Y.

[0066] The first chamfer 900 is a rounded corner or an oblique angle, and the second chamfer 1000 is a rounded corner or an oblique angle.

[0067] Continuing to refer to Figures 1 to 3 As shown, when the first chamfer 900 is a rounded corner and the second chamfer 1000 is also a rounded corner, specifically, the size of the first chamfer 900 in the rounded corner state should be different from the size of the second chamfer 1000 in the rounded corner state. The first chamfer 900 in the rounded corner state can be smaller or larger than the second chamfer 1000 in the rounded corner state.

[0068] The first chamfer 900 can be a rounded corner and the second chamfer 1000 can be an oblique angle; or the first chamfer 900 is an oblique angle and the second chamfer 1000 is a rounded corner.

[0069] When the first chamfer 900 is an inclined chamfer and the second chamfer 1000 is also an inclined chamfer, the sizes of the first chamfer 900 in the inclined chamfer state and the second chamfer 1000 in the inclined chamfer state are different. Specifically, the first chamfer 900 in the inclined chamfer state can be smaller than or larger than the second chamfer 1000 in the inclined chamfer state.

[0070] In this embodiment, the inclined chamfer specifically can be a 45° inclined chamfer. Of course, it can also be an inclined chamfer of other angles, and no specific limitation is made here.

[0071] This application also provides a battery cell conveying device, including the battery cell conveying and storing device described in any one of the above. The battery cell conveying device may further include a conveying component. The conveying component can be a conveying line or a conveying platform, etc. The battery cell conveying and storing device can be conveyed by the battery cell conveying device.

[0072] Since the battery cell conveying device includes the battery cell conveying and storing device, the battery cell conveying device has all the technical effects of the battery cell conveying and storing device, and the specific technical effects are not elaborated in detail here.

[0073] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0074] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A core conveying and storing device, characterized in that, Comprising: A carrier (100) having a storage cavity (300) formed thereon for storing battery cells. A covering member (200) having a covering cavity (400) formed on a side facing the carrier (100) for covering the battery cells, and a first relief groove (500) formed on an inner wall of the covering cavity (400) away from the carrier (100).

2. The battery cell conveying and storing device according to claim 1, wherein, A second relief groove (600) is formed on an inner wall of the covering cavity (400) away from the carrier (100), and a first through hole (700) is formed through the second relief groove (600) and communicates with the outside.

3. The battery cell conveying and storing device according to claim 1, wherein, N second through holes (800) are formed on an inner wall of the covering cavity (400) away from the carrier (100), where N≥1.

4. The cell conveying and storing device according to claim 1, characterized in that, The opening of the covering cavity (400) is provided with a first inclined surface, and the angle between the first inclined surface and the vertical surface is α, where 45°≤α<90°.

5. The battery cell conveying and storing device according to claim 2, wherein The connection between the second relief groove (600) and the covering cavity (400) is arc-shaped.

6. The battery cell conveying and storing device according to claim 1, characterized in that The opening of the storage cavity (300) is provided with a second inclined surface, and the angle between the second inclined surface and the vertical surface is β, where 45°≤β<90°.

7. The core conveying and storing device according to claim 1, wherein The carrier (100) and the covering member (200) have the same number of corners, each having M corners. At X corners of the carrier (100) and X corners of the covering member (200), first chamfers (900) are provided, and at Y corners of the carrier (100) and Y corners of the covering member (200), second chamfers (1000) are provided, where X≥1, Y≥1, and M≥X + Y.

8. The battery cell conveying and storing device according to claim 7, wherein, The first chamfer (900) is a rounded corner or an inclined corner, and the second chamfer (1000) is a rounded corner or an inclined corner.

9. The core conveying and storing device according to claim 3, characterized in that, The cross-section of the second through hole (800) is circular, oval, or polygonal.

10. A battery cell conveying device, characterized in that, A battery cell conveying and storing device according to any one of claims 1 to 9.

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