Glue overflow prevention device for glue pouring upper cover of battery module
By setting stamped fence components on the surface of the upper cover of the battery module, the problem of overflow caused by vibration of the battery module is solved, and the anti-overflow effect with low cost and stable performance is achieved, which is suitable for different transportation scenarios.
Patent Information
- Application Number
- CN202420584242.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-25
AI Technical Summary
During the handling process, the battery module is prone to overflow of colloids due to vibration, resulting in uneven glue filling, which increases production costs and battery performance risks.
The surface of the glue filling top cover is equipped with stamped fence components, which surround the accommodating cavity, and the height can be adjusted to suit different transportation scenarios. It occupies a surface area and volume, is low in cost, and is surrounded by 360° to prevent glue spills.
Effectively prevent colloid overflow, reduce production costs, maintain battery performance, reduce weight, adapt to different vibration conditions, and the materials and structure of fence components are in line with environmental protection concepts.
Smart Images
Figure CN222190842U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a device for preventing glue overflow from being poured on a glue cover of a battery module. Background Art
[0002] The battery module is an integral unit composed of multiple battery cells. The battery module includes a glue-filled cover, a battery cell and multiple accommodating cavities. The battery module surface is covered and installed with a glue-filled cover, and it is provided with multiple accommodating cavities, and the battery cell is placed in the accommodating cavities. In the related art, a colloid is stored in the accommodating cavity to fix the battery cell in the accommodating cavity.
[0003] During the glue filling process, the amount of glue filling is certain. Since the colloid is fluid, during the transportation of the battery module, the colloid is easily vibrated and there is a risk of glue overflow. When the colloid overflows the receiving chamber, it will not only stick to the glue filling cover, but may also flow into the adjacent receiving chamber, resulting in too much or too little glue filling in each receiving chamber. When the colloid overflows and sticks to the glue filling cover, a glue cleaning process is required, which will add an extra process and waste production time. If the amount of glue filling in the receiving chamber is too little, the risk of internal short circuit of the battery is increased, and the thermal performance, electrical performance and cycle life of the battery may be reduced. If the amount of glue filling in the receiving chamber is too much, it will not only increase the internal resistance of the battery, resulting in a decrease in battery performance, but also increase the weight of the battery, thereby reducing the energy density of the battery.
[0004] At present, most of the measures to prevent glue overflow in battery modules basically consider the situation where glue overflow is caused by excessive glue filling. A few consider the situation where the colloid is vibrated and glue overflows. Even if some existing technologies consider the situation where the colloid is vibrated and glue overflows, either increase the height of the accommodating cavity, but this not only increases the cost, but also greatly increases the weight of the battery module, reduces the energy density of the battery, and leads to a decrease in battery performance.
[0005] Some prior art technologies also increase the height of the entire glue-filled upper cover. However, since the glue-filled upper cover completely covers the surface of the battery module, this not only wastes costs, but also increases the weight of the battery module. Utility Model Content
[0006] In order to prevent the risk of glue overflow when the battery module is subjected to vibration, an embodiment of the utility model provides a device for preventing glue overflow on the glue filling cover of the battery module.
[0007] The embodiment of the utility model adopts the following technical scheme: a device for preventing glue overflow from the glue-filled upper cover of a battery module, the battery module is provided with a plurality of accommodating cavities for storing colloid, and a glue-filled upper cover is installed on the outer surface of the battery module, and the glue-filled upper cover surrounds the accommodating cavities; comprising: a fence component stamped and formed at the corresponding accommodating cavity area of the glue-filled upper cover, the height of the fence component is not greater than the first height and not less than the second height; the fence component is in a mouth shape and surrounds the accommodating cavity, and the thickness is not greater than 1.3 mm.
[0008] Effect: The enclosure components are used to surround the cavities one by one. Compared with raising the height of the entire cavities or the height of the entire glue-filling cover, the occupied surface area is smaller, the volume is smaller, and the cost is lower. At the same time, the height is set accordingly according to different usage scenarios to meet the flexibility of being applicable to different scene modules. And it can surround the cavities 360°, and the anti-overflow effect is better.
[0009] Preferably, the fence assembly includes an inner surface for surrounding the accommodating cavity and an outer surface for surrounding the inner surface; the distance between the inner surface and the outer surface is equal.
[0010] Effect: The distance between the inner surface and the outer surface is equal, which prevents the fence component from being uneven and affects the overall appearance of the battery module. At the same time, it also ensures that the height of the fence component is between 1.3mm and 1.5mm, achieving the effect of preventing glue overflow.
[0011] Preferably, the inner surface and outer surface of the fence assembly are no more than 1.1 mm apart.
[0012] Effect: While ensuring the firmness and stability of the fence components, the distance between the inner surface and the outer surface is fully reduced to achieve the effect of reducing the surface area and volume of the fence components and reducing costs.
[0013] Preferably, a fillet is provided at the connection between the outer surface and the glue-filled upper cover, and the radius of the fillet is not higher than 21 mm.
[0014] Effect: While ensuring that the outer surface can fully surround the inner surface, the radius of the fillet of the outer surface is fully reduced to achieve the effect of reducing the surface area of the fence component.
[0015] Preferably, the first height is 2 mm.
[0016] Effect: When the height is 2mm, it is mainly suitable for manual handling of battery modules. Since the battery module has a certain weight, it is more susceptible to vibration during manual handling, and the colloid is likely to overflow from the glue filling cover due to vibration. Therefore, the height is set to the highest 2mm, while ensuring that the colloid is unlikely to overflow even during manual handling due to vibration, without further increasing unnecessary height and unnecessary costs.
[0017] Preferably, the second height is 1 mm.
[0018] Effect: This is used in the process of machine transportation. Although the machine transportation process is relatively stable and the probability of vibration is small, when the machine stops, the colloid suddenly overflows the glue filling cover due to inertia. Therefore, the fence component is set to a lower height accordingly to avoid glue overflow. Since the machine transportation process is relatively stable, the corresponding fence component has a lower height, which can further reduce costs to achieve the purpose of preventing glue overflow.
[0019] Preferably, the fence assembly is made of aluminum.
[0020] Effect: Aluminum products are not only easy to stamp, but also low in cost, light in weight, corrosion-resistant, and recyclable; they are in line with the current environmental protection concept of advocating battery recycling.
[0021] Preferably, the fence assembly is a three-dimensional rounded rectangular structure.
[0022] Effect: The structure of the fence assembly surrounds the accommodating cavity 360°, achieving the effect of preventing glue from overflowing.
[0023] Preferably, the surface area of the fence assembly is 3.2% of the surface area of the glue-filled cover.
[0024] Effect: The surface area of the fence component occupies a small area of the battery module surface, which not only can achieve the effect of preventing glue overflow, but also greatly reduces the production cost.
[0025] Beneficial effects of the utility model
[0026] Compared with the existing method of increasing the height of the accommodating cavity or the entire glue-filled upper cover, which is costly and increases the weight of the battery module, resulting in a decrease in battery performance; the utility model is not limited to the existing structure. By stamping a fence component on the surface of the glue-filled upper cover, the fence component not only has a small surface area, which only accounts for 3.2% of the surface area of the battery module, but also has a small weight. Compared with increasing the height of the accommodating cavity or the entire glue-filled upper cover, its weight is reduced by about 88.6%. Therefore, the fence component maintains the energy density of the battery, that is, ensures that the performance of the battery remains unchanged, and prevents the risk of glue overflow caused by vibration of the colloid, and also reduces the production cost.
[0027] Next, the fence component formed by stamping can achieve the effect of seamless connection with the glue-filled cover, which not only ensures the quality of the fence component, good durability and high precision, but also prevents the colloid from flowing out from between the fence component and the glue-filled cover. The manufacturing process is relatively simple.
[0028] Secondly, the fence assembly can surround cavities of different sizes one by one, and has good flexibility and strong adaptability.
[0029] Finally, the height of the fence assembly is set according to different vibration conditions. Taking into account that the battery module is moved manually, the colloid is subjected to a large vibration amplitude, so the height of the fence assembly needs to be set to 2mm; if a machine is used instead of manual transportation of the battery module, the vibration amplitude of the colloid is relatively small, so the height of the fence assembly is set to 1mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a top view of a device for preventing glue overflow on a glue filling cover of a battery module according to the utility model;
[0031] Figure 2 It is a partial structural schematic diagram of a top view of a device for preventing glue overflow on a glue-filling upper cover of a battery module according to the utility model;
[0032] Figure 3 It is a partial structural schematic diagram of a front view of a device for preventing glue overflow from filling a glue cover of a battery module according to the utility model. DETAILED DESCRIPTION
[0033] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0034] The reference numerals in the drawings of the specification include:
[0035] Accommodating cavity 1, battery module 2, glue injection hole 3, fence component 4, inner surface 41, outer surface 42
[0036] Embodiment 1
[0037] like Figure 1As shown, the present embodiment provides a device for preventing glue overflow from the glue-filled upper cover of the battery module 2. The battery module 2 comprises a receiving chamber 1, a glue-filled upper cover and a glue injection hole 3. The colloid is injected into the receiving chamber 1 through the glue injection hole 3, and the receiving chamber 1 is used to store the colloid. The surface of the battery module 2 is covered with the glue-filled upper cover except for the receiving chamber 1. The foregoing is the prior art and need not be repeated. The present embodiment provides a device for preventing glue overflow from the glue-filled upper cover of the battery module, comprising: a fence component 4 stamped and formed at the corresponding receiving chamber area of the glue-filled upper cover. The fence component 4 is arranged on the surface of the glue-filled upper cover by stamping, and its number is the same as the number of the receiving chambers 1. In the present embodiment, the number of the receiving chambers 1 is 4, and the number of the fence components 4 is also 4. The fence component 4 is a square structure that surrounds the receiving chamber 1. Among them, the fence component 4 is an aluminum product. The stamping process can be processed by a stamping process such as a hole-drawing process.
[0038] Specifically, Figure 2 As shown, the fence assembly 4 includes an inner surface 41 and an outer surface 42, the inner surface 41 is used to surround the accommodating cavity 1, and the outer surface 42 is used to surround the inner surface 41. The outer surface 42 and the inner surface 41 are no more than 1.1 mm apart. In this embodiment, the outer surface 42 is provided with a rounded corner, and the radius of the rounded corner is 21 mm. The surface area occupied by the fence assembly 4 is reduced by limiting the radius of the rounded corner of the outer surface 42, and at the same time, the distance between the inner surface 41 and the outer surface 42 is uniformly processed. The surface area of the fence assembly 4 is 3.2% of the surface area of the glue-filled upper cover. The fence assembly 4 is a three-dimensional rounded rectangular body structure.
[0039] like Figure 3 As shown, the height of the outer surface 42 and the inner surface 41 is consistent, and is not less than 1 mm and not more than 2 mm. In this embodiment, the height of the fence component 4 is 2 mm.
[0040] The specific use process of this embodiment is as follows:
[0041] If the transportation is done manually, the height of the fence component 4 is 2 mm, and the fence component 4 is punched out of the glue-filling cover by stamping, and its device is a square-shaped device surrounding the accommodating cavity 1. When the colloid overflows the glue-filling cover due to vibration, it is blocked by the fence component 4, and then rebounds back into the accommodating cavity 1, and does not stick to the fence component 4.
[0042] Embodiment 2
[0043] Different from the first embodiment, in this embodiment, the height of the fence component 4 is set to 1 mm.
[0044] The specific use process of this embodiment is as follows:
[0045] When the battery module 2 is transported by a robot, the fence component 4 is punched out of the glue-filling cover by stamping, and the device is a square-shaped device that surrounds the accommodating cavity 1. When the colloid overflows the glue-filling cover due to vibration, it is blocked by the fence component 4 and then rebounds back into the accommodating cavity 1 without sticking to the fence component 4.
[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected 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 the present invention can be understood according to specific circumstances.
[0047] It should be understood that the term "and / or" used in this article is only a description of the same field of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0048] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.
[0049] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.
Claims
1. A device for preventing glue from overflowing from a glue-filling cover of a battery module, wherein the battery module is provided with a plurality of accommodating cavities for storing colloids, and a glue-filling cover is installed on the outer surface of the battery module, and the glue-filling cover surrounds the accommodating cavities; It is characterized in that include: A fence component is stamped and formed at the corresponding accommodating cavity area of the glue-filled upper cover, wherein the height of the fence component is not greater than the first height and not less than the second height; the fence component is in a U-shape and surrounds the accommodating cavity, and the thickness is not greater than 1.3 mm.
2. A device for preventing glue overflow from filling glue cover of battery module according to claim 1, It is characterized in that The fence assembly includes an inner surface for surrounding the accommodating cavity and an outer surface for surrounding the inner surface; the distance between the inner surface and the outer surface is equal.
3. A device for preventing glue overflow from filling glue cover of battery module according to claim 2, It is characterized in that The inner surface and outer surface of the fence assembly are no more than 1.1 mm apart.
4. A device for preventing glue overflow from filling glue cover of battery module according to claim 3, It is characterized in that A fillet is provided at the connection between the outer surface and the glue-filled upper cover, and the radius of the fillet is not higher than 21 mm.
5. A device for preventing glue overflow from filling glue cover of battery module according to claim 1, It is characterized in that The first height is 2 mm.
6. A device for preventing glue overflow from filling glue cover of battery module according to claim 1, It is characterized in that The second height is 1 mm.
7. A device for preventing glue overflow from filling glue on a battery module cover according to claim 1, It is characterized in that The fence assembly is made of aluminum.
8. A device for preventing glue overflow from filling glue on a battery module cover according to claim 1, It is characterized in that The fence component is a three-dimensional rounded rectangular structure; the surface area of the fence component is 3.2% of the surface area of the glue-filled upper cover.