Battery drying device
By designing a battery drying device including a mesh structure, increasing the contact area between the circulating air and the battery case, the problems of low baking efficiency and damage to the internal components of the battery in the prior art are solved, and an efficient and safe battery drying effect is achieved.
Patent Information
- Application Number
- CN202421608166.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing battery drying technology has problems such as low baking pass rate, long-term high-temperature baking leads to diaphragm shrinkage, increased battery short-circuit rate and decreased sealing performance.
A battery drying device is designed, including a mesh structure, which reduces the baking temperature and time by increasing the contact area between the circulating air and the battery shell, improves the baking efficiency, and reduces the impact of long-term high temperatures on the internal components of the battery.
It improves baking efficiency, reduces the baking temperature and time, and reduces the impact of long-term high temperature on the battery cell separator, bushing and cover seals in the battery, thereby improving the overall quality and performance of the battery product.
Smart Images
Figure CN222978552U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a battery drying device. Background Art
[0002] The moisture in the battery mainly comes from the moisture in the battery raw materials (including the positive and negative electrode plates, separator, electrolyte and other metal components) and the moisture in the factory environment. For the moisture in the environment, a drying workshop can be established, and a dryer is used to generate dry air, which is continuously input into the drying workshop to replace the wet air in the workshop, so as to eliminate the environmental moisture.
[0003] For the moisture inside the battery, due to the very high drying standard, the moisture content is usually required to be between (100 - 300)×10 -6 So generally, drying equipment such as a blast drying oven is needed to remove water. After drying, the battery is tested to see if it is baked qualified.
[0004] The deficiencies of the existing technical solutions for baking batteries are as follows: the passing rate of one-time baking is relatively low, which affects the production efficiency. If you want to improve the baking efficiency, you must increase the baking temperature or time. However, long-term high-temperature baking will greatly increase the shrinkage of the separator, resulting in an increase in the short-circuit rate of the battery, an increase in safety risks, and the sealing performance of the battery cover seal will also be greatly reduced, increasing the risk of liquid leakage. Summary of the Utility Model
[0005] In view of the deficiencies of the prior art, the utility model discloses a battery drying device.
[0006] The technical solution adopted by the utility model is as follows:
[0007] A battery drying device includes a grid frame; the grid frame includes a first support body, a second support body and a connecting body arranged between the first support body and the second support body; a spacing is formed between the first support body and the second support body, and the plane where the first support body is located and the plane where the second support body is located are parallel to each other;
[0008] Wherein, the first support body and / or the second support body is a grid plane, or the first support body and / or the second support body is a frame.
[0009] In an embodiment of the utility model, the first support body includes two relatively arranged first connecting rods and two relatively arranged second connecting rods, and the first connecting rods and the second connecting rods are vertically arranged; at least one first partition rod arranged along the first direction is arranged between the two first connecting rods; the two ends of the first partition rod respectively abut against the inner sides of the two first connecting rods.
[0010] In one embodiment of the present utility model, at least one second partition member disposed along the second direction is provided between the two second linkages.
[0011] In one embodiment of the present utility model, two ends of the second partition member are respectively lapped on the two second linkages.
[0012] In one embodiment of the present utility model, the second support body includes two oppositely disposed third linkages and two oppositely disposed fourth linkages, and the third linkage and the fourth linkage are perpendicularly disposed.
[0013] In one embodiment of the present utility model, the connecting body includes a first connecting body; the first connecting body is disposed along the circumferential direction of the first support body or the second support body.
[0014] In one embodiment of the present utility model, the first connecting body includes a first connecting rod and a second connecting rod that are obliquely disposed and intersect at a point; wherein, the intersection point of the first connecting rod and the second connecting rod abuts against the first support body or the second support body.
[0015] In one embodiment of the present utility model, when the first support body and / or the second support body is a grid plane, the connecting body includes a second connecting body; the second connecting body is disposed along the second direction between the first support body and the second support body.
[0016] In one embodiment of the present utility model, the second connecting body includes a third connecting rod and a fourth connecting rod that are obliquely disposed and intersect at a point; wherein, the intersection point of the third connecting rod and the fourth connecting rod faces the horizontal plane where the first support body is located or the horizontal plane where the second support body is located.
[0017] In one embodiment of the present utility model, a conveying mechanism is further included; the conveying mechanism has at least one layer of hollow storage layers; at least one of the grid frames is provided on the storage layer.
[0018] The above technical solution of the present utility model has the following advantages compared with the prior art:
[0019] The battery drying device of the present utility model increases the contact area between the circulating air and the battery housing, and further reduces the baking temperature and time.
[0020] While improving the baking efficiency, the battery drying device of the present utility model reduces the influence of long-term high temperature on the battery core diaphragm, bushing and cover seal in the battery 30, which helps to improve the overall quality and performance of the battery product. Description of the Drawings
[0021] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is given according to the specific embodiments of the present utility model in conjunction with the accompanying drawings.
[0022] Figure 1 It is a schematic structural diagram of the battery drying device in the present utility model.
[0023] Figure 2 It is a schematic structural diagram of the battery drying device (without showing the conveying mechanism) in the present utility model.
[0024] Figure 3 It is a schematic structural diagram of the use of the battery drying device (showing the battery) in the present utility model.
[0025] Figure 4 It is Figure 3 a partial enlarged schematic diagram in
[0026] Figure 5 It is a schematic structural diagram of the battery drying device (without showing the battery) in Comparative Example 1.
[0027] Figure 6 It is Figure 5 a schematic structural diagram of the first material box in
[0028] Figure 7 It is a schematic structural diagram of the battery drying device (without showing the battery) in Comparative Example 2.
[0029] Figure 8 It is Figure 7 a schematic structural diagram of the first material box and the base in
[0030] Figure 9 It is a schematic structural diagram of the battery drying device (showing the battery) in Comparative Example 3.
[0031] Figure 10 It is Figure 9 a schematic structural diagram of the second material box and the battery in
[0032] Description of the reference numerals in the specification drawings: 10, grid rack; 101, first support body; 102, second support body; 103, first connecting body; 1031, first connecting rod; 1032, second connecting rod; 104, first partition rod; 105, second partition rod; 106, second connecting body; 1061, third connecting rod; 1062, fourth connecting rod; 20, conveying mechanism; 30, battery; 40, first material box; 50, base; 60, second material box. Detailed implementation manners
[0033] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the illustrated embodiments are not intended to limit the present utility model.
[0034] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. Directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only with reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the present utility model. In addition, in all embodiments, the same reference numerals represent the same elements.
[0035] Embodiment
[0036] Combined with Figure 1 and Figure 2 , a battery drying device includes a grid frame 10; the grid frame 10 includes a first support body 101, a second support body 102, and a connecting body disposed between the first support body 101 and the second support body 102; a spacing is formed between the first support body 101 and the second support body 102, and the planes where the first support body 101 and the second support body 102 are located are parallel to each other;
[0037] Wherein, the first support body 101 and / or the second support body 102 is a grid plane, or the first support body 101 and / or the second support body 102 is a frame.
[0038] The present embodiment provides a battery drying device, which increases the contact area between the circulating air and the housing of the battery 30, further reduces the baking temperature and time; while improving the baking efficiency, it reduces the influence of long-term high temperature on the battery core diaphragm, bushing and cover seal in the battery 30.
[0039] In the present embodiment, the first support body 101 is a grid plane and the second support body 102 is a frame. Specifically, the first support body 101 includes two relatively arranged first connecting rods and two relatively arranged second connecting rods, and the first connecting rods and the second connecting rods are perpendicularly arranged. At least one first partition rod 104 arranged along the first direction is disposed between the two first connecting rods. The two ends of the first partition rod 104 respectively abut against the inner sides of the two first connecting rods. The second support body 102 includes two relatively arranged third connecting rods and two relatively arranged fourth connecting rods, and the third connecting rods and the fourth connecting rods are perpendicularly arranged. Wherein, the first direction refers to the length direction of the first support body 101, and the second direction refers to the width direction of the first support body 101.
[0040] It should be noted that in other possible embodiments, the following structural forms can be adopted: First, the first support body 101 is a frame structure, and the second support body 102 is a grid plane; Second, both the first support body 101 and the second support body 102 are grid planes; Third, both the first support body 101 and the second support body 102 are frames. Considering that the subsequent grid 10 needs to limit a plurality of batteries 30 with a certain height, and in order to increase the contact area between the internal circulating air of a drying device such as a forced-air oven at the bottom of the grid 10 and the housing of the battery 30, it is therefore preferred that the first support body 101 is a grid plane and the second support body 102 is a frame structure design.
[0041] Furthermore, at least one second partition member 105 arranged along the second direction is provided between the two second connecting rods. The two ends of the second partition member 105 are respectively lapped on the two second connecting rods. In this embodiment, a plurality of first partition members 104 and a plurality of second partition members 105 are respectively designed. The plurality of first partition members 104 and the plurality of second partition members 105 divide the first support body 101 into a plurality of grids, and each grid is used to place a battery 30. Then it can be understood that the distance between adjacent two first partition members 104 and the distance between adjacent two second partition members 105 can be designed according to the width of the battery 30. While the plurality of first partition members 104 and the plurality of second partition members 105 can fix the position of the battery 30, they can also help the batteries 30 to be neatly arranged according to a specific layout, thereby ensuring the stability and safety of the batteries 30 during transportation or drying.
[0042] In this embodiment, in order to increase the structural stability and reduce deformation or inclination caused by external forces, the connecting body includes a first connecting body 103 and a second connecting body 106. The first connecting body 103 is arranged along the circumferential direction of the first support body 101 or the second support body 102. The second connecting body 106 is arranged along the second direction between the first support body 101 and the second support body 102. The setting of the first connecting body 103 and the second connecting body 106 can improve the stiffness of the structure and reduce bending and vibration under load.
[0043] For example, two first connecting bodies 103 are provided between the second connecting rod of the first support body 101 and the fourth connecting rod of the second support body 102. Three first connecting bodies 103 are provided between the first connecting rod of the first support body 101 and the third connecting rod of the second support body 102. A second connecting body 106 is provided on each second partition member 105.
[0044] Specifically, the first connecting body 103 includes a first connecting rod 1031 and a second connecting rod 1032 that are inclined and intersect at a point. Among them, the intersection point of the first connecting rod 1031 and the second connecting rod 1032 abuts against the first support body 101.
[0045] The second connecting body 106 includes a third connecting rod 1061 and a fourth connecting rod 1062 that are inclined and intersect at a point. Among them, the intersection point of the third connecting rod 1061 and the fourth connecting rod 1062 faces the horizontal plane where the second support body 102 is located. Preferably, the intersection point of the third connecting rod 1061 and the fourth connecting rod 1062 coincides with the midpoint of the second partition rod 105.
[0046] It should be noted that if the first support body 101 and the second support body 102 adopt a structural form different from that of this embodiment, the intersection point of the first connecting rod 1031 and the second connecting rod 1032 can abut against the second support body 102, and the intersection point of the third connecting rod 1061 and the fourth connecting rod 1062 faces the horizontal plane where the first support body 101 is located.
[0047] In this embodiment, the battery drying device further includes a conveying mechanism 20. The conveying mechanism 20 has at least one layer of hollow storage layers. At least one wire rack 10 is provided on the storage layer. Among them, the conveying mechanism 20 can adopt a trolley. The number of wire racks 10 is designed according to the size of the storage layer.
[0048] Combined Figure 3 and Figure 4 , the usage method of this embodiment is as follows:
[0049] At least one wire rack 10 is placed on each storage layer of the conveying mechanism 20. As Figure 3 shown, three wire racks 10 are placed on each storage layer.
[0050] Multiple batteries 30 are placed in each wire rack 10. As Figure 4 shown, multiple batteries 30 are placed in the grid of the wire rack 10 in a 5×16 matrix form.
[0051] The conveying mechanism 20 is moved into a drying device such as a forced-air oven to dry the batteries 30.
[0052] Comparative Example 1
[0053] Combined Figure 5 and Figure 6 , this comparative example provides a battery drying device, including a conveying mechanism 20 and at least one first storage box 40. The conveying mechanism 20 has at least one layer of hollow storage layers. At least one first storage box 40 is provided on the storage layer. Multiple through holes are formed in the bottom of the first storage box 40, and the bottom of the first storage box 40 is attached to the surface of the storage layer.
[0054] It is found through actual tests that since the battery drying device provided in this comparative example cannot generate circulating air, the passing rate of the batteries 30 after one drying is relatively small, and multiple drying operations are required repeatedly.
[0055] Comparative Example 2
[0056] Combined with Figure 7 and Figure 8 ,this comparative example provides a battery drying device, including a conveying mechanism 20, a base 50, and at least one first cartridge 40. The conveying mechanism 20 has at least one layer of hollow storage layers. The base 50 is provided on the storage layer, and the base 50 supports at least one first cartridge 40. The structure of the first cartridge 40 is the same as that of the first cartridge 40 in Comparative Example 1, and will not be described in detail here.
[0057] It is found through actual tests that, compared with Comparative Example 1, the battery drying device provided in this comparative example only increases the first-pass rate by 5%-10%. However, due to the small contact area between the circulating air and the surface of the battery 30 housing, the drying effect on the battery 30 is not significant.
[0058] Comparative Example 3
[0059] Combined with Figure 9 and Figure 10 ,this comparative example provides a battery drying device, including a conveying mechanism 20 and at least one second cartridge 60. The conveying mechanism 20 has at least one layer of hollow storage layers. At least one second cartridge 60 is provided on the storage layer. A notch is formed in the bottom of the second cartridge 60 along its length direction, and the part of the bottom of the second cartridge 60 except the notch fits the surface of the storage layer.
[0060] It is found through actual tests that, compared with Comparative Example 2, a notch is formed in the bottom of the second cartridge 60 of the battery drying device provided in this comparative example along its length direction, and circulating air is formed at the bottom of the second cartridge 60, improving the baking efficiency. The first-pass rate of the production line is increased from 70%-80% to 100%, solving the problem of low first-baking pass rate.
[0061] In summary, compared with Comparative Example 3, the battery drying device provided in this embodiment further increases the contact area between the circulating air and the battery 30 housing, further reduces the baking temperature and time, improves the baking efficiency, and reduces the influence of long-term high temperature on the battery core diaphragm, bushing, and cover seal in the battery 30.
[0062] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set" and "connect" are used, they should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0063] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.
Claims
1. A battery drying device, characterized in that: The grid (10) comprises a first support (101), a second support (102), and a connector arranged between the first support (101) and the second support (102); a gap is formed between the first support (101) and the second support (102), and a plane where the first support (101) is located and a plane where the second support (102) is located are parallel to each other; Wherein, the first support body (101) and / or the second support body (102) is a grid plane, or the first support body (101) and / or the second support body (102) is a frame.
2. The battery drying device according to claim 1, characterized in that: The first support body (101) comprises two first connecting rods and two second connecting rods which are arranged opposite to each other, wherein the first connecting rods and the second connecting rods are arranged vertically; at least one first dividing rod (104) which is arranged along a first direction is arranged between the two first connecting rods; and two ends of the first dividing rod (104) respectively abut against the inner sides of the two first connecting rods.
3. The battery drying device according to claim 2, characterized in that: At least one second dividing rod (105) arranged along a second direction is arranged between the two second connecting rods.
4. The battery drying device according to claim 3, characterized in that: Two ends of the second partition rod (105) are respectively overlapped on the two second connecting rods.
5. The battery drying device according to claim 1, characterized in that: The second support body (102) comprises two third connecting rods arranged opposite to each other and two fourth connecting rods arranged opposite to each other, wherein the third connecting rods and the fourth connecting rods are arranged vertically.
6. The battery drying device according to claim 1, characterized in that: The connecting body comprises a first connecting body (103); the first connecting body (103) is arranged along the circumference of the first supporting body (101) or the second supporting body (102).
7. The battery drying device according to claim 6, characterized in that: The first connecting body (103) includes a first connecting rod (1031) and a second connecting rod (1032) which are arranged obliquely and intersect at one point; wherein the intersection point of the first connecting rod (1031) and the second connecting rod (1032) abuts against the first supporting body (101) or the second supporting body (102).
8. The battery drying device according to claim 1, characterized in that: When the first support body (101) and / or the second support body (102) is a grid plane, the connector includes a second connector (106); the second connector (106) is arranged between the first support body (101) or the second support body (102) along a second direction.
9. The battery drying device according to claim 8, characterized in that: The second connecting body (106) includes a third connecting rod (1061) and a fourth connecting rod (1062) which are arranged obliquely and intersect at one point; wherein the intersection point of the third connecting rod (1061) and the fourth connecting rod (1062) faces the horizontal plane where the first supporting body (101) is located or the horizontal plane where the second supporting body (102) is located.
10. The battery drying device according to claim 1, characterized in that: It also comprises a conveying mechanism (20); the conveying mechanism (20) has at least one hollow storage layer; and at least one grid frame (10) is arranged on the storage layer.