Ventilation and heat dissipation screen plate for energy storage equipment

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to a ventilation and heat dissipation mesh plate for energy storage equipment, which comprises a plate body, a plurality of first mesh holes are formed in the length direction and the width direction of the plate body at equal intervals, and a plurality of second mesh holes are formed in the length direction and the width direction of the plate body at equal intervals; the first meshes and the second meshes in the length direction of the plate body are alternately arranged; the first meshes and the second meshes in the width direction of the plate body are alternately arranged, and the tops of the first meshes and the tops of the second meshes are oppositely arranged; the first mesh holes and the second mesh holes are equilateral triangle through holes with equal side lengths; the width of the landing edge of the first mesh and the second mesh adjacent to the first mesh ranges from 2.3 mm to 2.7 mm, and the side length of the first mesh ranges from 10.2 mm to 10.6 mm. According to the utility model, the technical problems of large deformation and high processing cost of the existing ventilation and heat dissipation screen plate can be solved, and the I P2X level protection requirement in GB / T4208-2017 Shell Protection Grade (IP Code) can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, and more specifically, it relates to a ventilation and heat dissipation mesh plate for energy storage devices. Background Art

[0002] The operation of energy storage devices is often accompanied by heat generation. At the same time, there are risks of electric shock, static electricity, and deflagration to operators during the operation of energy storage devices. Therefore, the protection of energy storage devices is of crucial importance.

[0003] The patent with the publication number CN215121509U discloses a cabinet mesh door. Although the air permeability of this cabinet mesh door is as high as over 86%, it can obtain a good ventilation and heat dissipation effect. However, it has a large deformation during the preparation process and needs to be corrected and leveled before it can be used in energy storage devices. In addition, a high air permeability also means that more through holes of a specific area need to be opened. More through holes of a specific area will lead to an increase in the processing cost of the mold for stamping the plate and difficulty in demolding the plate. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a ventilation and heat dissipation mesh plate for energy storage devices, aiming to solve the technical problems of large deformation and high processing cost of the existing ventilation and heat dissipation mesh plates.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0006] A ventilation and heat dissipation mesh plate for energy storage devices, including a plate body. A number of first mesh holes are equally spaced in the length direction and width direction of the plate body. A number of second mesh holes are equally spaced in the length direction and width direction of the plate body. The first mesh holes and the second mesh holes are alternately arranged in the length direction of the plate body. The first mesh holes and the second mesh holes are alternately arranged in the width direction of the plate body and the tops of the first mesh holes and the tops of the second mesh holes are relatively arranged. Both the first mesh holes and the second mesh holes are equilateral triangle through holes with equal side lengths. The overlapping width between the first mesh hole and its adjacent second mesh hole is 2.3 - 2.7 mm, and the side length of the first mesh hole is 10.2 - 10.6 mm.

[0007] Optionally, the overlapping width between the first mesh hole and its adjacent second mesh hole is 2.5 mm, and the side length of the first mesh hole is 10.4 mm.

[0008] Optionally, the top angles of both the first mesh holes and the second mesh holes are provided with rounded corners.

[0009] Optionally, the radius of the rounded corner is 0.8 - 1.2 mm.

[0010] Optionally, the radius of the rounded corner is 1.0 mm.

[0011] Optionally, the thickness of the plate body is 1.0 - 2.0 mm.

[0012] Optionally, the thickness of the plate body is 1.2 ± 0.05 mm.

[0013] Optionally, the plate body is a stainless steel plate or a cold-rolled steel plate.

[0014] Optionally, both the front and back sides of the plate are coated with an anti-corrosion coating.

[0015] In summary, the utility model has the following beneficial effects:

[0016] (1) By arranging the first mesh holes and the second mesh holes with equilateral triangle structures of specific side lengths at specific positions (equidistant + mirror image), the ventilation rate per unit area of the heat dissipation mesh holes formed by the first mesh holes and the second mesh holes reaches 49.2% - 53.8%. On the premise of meeting the IP2X level protection requirement in GB / T 4208 - 2017 "Degree of protection provided by enclosures (IP code)" of "preventing solid foreign objects with a diameter ≥ 12.5 mm from entering", it can effectively prevent personnel's fingers from approaching dangerous parts, reduce the injury accidents caused by personnel's accidental touch, and also reduce the deformation amount and processing cost of the ventilation and heat dissipation mesh plate.

[0017] (2) The top angles of the heat dissipation mesh holes formed by the first mesh holes and the second mesh holes are designed with rounded corners, which can not only reduce the difficulty of waste film removal during processing, but also effectively prevent dust accumulation at the corners when applied to energy storage devices.

[0018] (3) The heat dissipation mesh holes formed by the first mesh holes and the second mesh holes are based on a single equilateral triangle through-hole, and four equilateral triangle through-holes that are symmetrically mirrored are grouped, ensuring the aesthetics and neat consistency of the mesh holes. Different area sizes of ventilation and heat dissipation requirements can be achieved through horizontal and vertical arrayings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the top view of the utility model;

[0020] Figure 2 is the first size schematic diagram of the utility model;

[0021] Figure 3 is the second size schematic diagram of the utility model.

[0022] In the figure: 1 represents the first mesh hole; 2 represents the second mesh hole; A represents the overlapping width between the first mesh hole and its adjacent second mesh hole; B represents the side length of the first mesh hole; C represents the radius of the rounded corner; D represents the length of the plate body; E represents the width of the plate body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings. Several embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0024] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying 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.

[0025] In the present utility model, unless otherwise clearly defined and limited, the fact that the first feature is "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the fact that the first feature is "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The fact that the first feature is "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. Terms such as "vertical", "horizontal", "left", "right", "up", "down", and similar expressions are only for the purpose of illustration and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model.

[0026] The following describes the present utility model in detail with reference to the accompanying drawings and embodiments.

[0027] The present utility model provides a ventilation and heat dissipation mesh plate for an energy storage device, as Figures 1-3As shown, it includes a plate body (not marked in the attached drawing). A number of first mesh holes 1 are evenly spaced in the length and width directions of the plate body, and a number of second mesh holes 2 are evenly spaced in the length and width directions of the plate body; the first mesh holes 1 and the second mesh holes 2 are alternately arranged in the length direction of the plate body; the first mesh holes 1 and the second mesh holes 2 are alternately arranged in the width direction of the plate body and the tops of the first mesh holes 1 and the tops of the second mesh holes 2 are oppositely arranged; both the first mesh holes 1 and the second mesh holes 2 are equilateral triangular through holes with equal side lengths; the overlapping width between the first mesh hole 1 and its adjacent second mesh hole 2 is 2.3 - 2.7 mm, and the side length of the first mesh hole 1 is 10.2 - 10.6 mm.

[0028] Specifically, the first mesh holes 1 and the second mesh holes 2 are equilateral triangular through holes with equal side lengths, and the side length is 10.2 - 10.6 mm (i.e., Figure 3 the dimension shown at B in the figure); taking the first mesh hole 1 as a reference, the four second mesh holes 2 above, below, left, and right of it are called the adjacent second mesh holes 2, and the overlapping width between two adjacent first mesh holes 1 and second mesh holes 2 is 2.3 - 2.7 mm (i.e., Figure 2 the dimension shown at A in the figure). The inscribed circle diameter of the first mesh hole 1 is 5.89 - 6.12 mm, meeting the IP2X level protection requirement of "preventing solid foreign objects with a diameter ≥ 12.5 mm from entering" in GB / T 4208 - 2017 "Degree of protection provided by enclosures (IP code)".

[0029] Furthermore, in order to reduce the difficulty of waste film removal during the processing and effectively prevent dust accumulation at the corners when applied to energy storage devices, the top corners of the first mesh holes 1 and the top corners of the second mesh holes 2 are both provided with rounded corners, and the radius of the rounded corners is 0.8 - 1.2 mm.

[0030] In order to test the deformation amount of the plate during the preparation process, the stamping process verification is carried out according to the following relevant design parameters. The cold-rolled steel plate with a thickness of 1.2 ± 0.05 mm is used as the test plate, and the data in Table 1 is obtained.

[0031] Table 1 Deformation data table of each ventilation and heat dissipation mesh plate

[0032]

[0033] The smallest plate in Table 1 refers to the plate body with 32 mesh holes (i.e., 16 first mesh holes 1 and 16 second mesh holes 2 are collectively called mesh holes). Its length D is the distance between the mesh edges at the left and right ends, and its width E is the distance between the mesh edges at the upper and lower ends.

[0034] The design dimensions of the mesh plate 10 in Table 1 are the optimal design dimensions in the patent CN215121509U.

[0035] The ventilation rate in Table 1 is based on the plate with the smallest size having 32 meshes. When the number of meshes is more, the ventilation rate is closer to the theoretical value.

[0036] The test method for the average maximum deformation amount is as follows: Place the ventilation and heat dissipation mesh plate of the corresponding size flat on a flat tempered glass, and measure the distance between the highest point of the ventilation and heat dissipation mesh plate and the upper surface of the tempered glass. When this distance is 1.0 mm, it is considered that the maximum deformation amount of this ventilation and heat dissipation mesh plate is 1.0 mm; Test 10 pieces, and take the average value as the average maximum deformation amount.

[0037] As can be seen from Table 1, (1) The ventilation rate depends on the number and area of meshes per unit area. The more the number, the higher the ventilation rate, and the corresponding processing cost and time are higher. At the same time, the material deformation degree will also be higher. If it is necessary to keep the material unchanged, additional strengthening design is required. Therefore, the advantage of this application is that it not only maintains the strength of the material, reduces costs, but also can maintain the structural strength and reduce the deformation amount on a large-size area. (2) The mesh ventilation rate is related to the mesh size. The larger the mesh size, the ventilation rate will increase, but the larger the single mesh size, the lower the corresponding protection ability. The meshes of this application can effectively prevent solids with a diameter of more than 8 MM from invading, meeting the IP2X-level protection requirements in GB / T 4208-2017 "Degree of Protection Provided by Enclosures (IP Code)", and having better protection ability and lower deformation amount compared with the design in the patent of CN215121509U, thereby effectively reducing the processing cost. (3) Comprehensively evaluating the ventilation rate and the average maximum deformation amount, when the overlap width between the first mesh 1 and the second mesh 2 is 2.5 mm, the side length of the first mesh 1 is 10.4 mm, and the radius of the rounded corner is 1.0 mm, the effect of the ventilation and heat dissipation mesh plate is the best.

[0038] In addition, the thickness of the plate body can also be widened to 1.0 - 2.0 mm, and the material can also be a stainless steel plate.

[0039] Furthermore, in order to improve the anti-corrosion performance and aesthetic effect of the ventilation and heat dissipation mesh plate, anti-corrosion coatings are coated on both the front and back of the plate by conventional processes. This ventilation and heat dissipation mesh plate can be designed as a protective shell of an energy storage device or a part of a protective shell.

[0040] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A ventilation and heat dissipation mesh plate for energy storage equipment, characterized in that: It includes a plate body, a plurality of first mesh holes are evenly spaced in the length direction and width direction of the plate body, and a plurality of second mesh holes are evenly spaced in the length direction and width direction of the plate body; the first mesh holes and the second mesh holes are alternately arranged in the length direction of the plate body; the first mesh holes and the second mesh holes are alternately arranged in the width direction of the plate body, and the top of the first mesh holes and the top of the second mesh holes are arranged oppositely; the first mesh holes and the second mesh holes are both equilateral triangular through holes with equal side lengths; the overlap width between the first mesh hole and the second mesh hole adjacent to it is 2.3-2.7 mm, and the side length of the first mesh hole is 10.2-10.6 mm.

2. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 1, characterized in that: The overlapping width between the first mesh and the second adjacent mesh is 2.5 mm, and the side length of the first mesh is 10.4 mm.

3. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 2, characterized in that: The top angles of the first mesh and the second mesh are both rounded.

4. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 3, characterized in that: The radius of the rounded corners is 0.8-1.2 mm.

5. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 4, characterized in that: The radius of the rounded corners is 1.0 mm.

6. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 1, characterized in that: The thickness of the plate is 1.0-2.0 mm.

7. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 6, characterized in that: The thickness of the plate is 1.2±0.05mm.

8. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 6, characterized in that: The plate body is a stainless steel plate or a cold-rolled steel plate.

9. The ventilation and heat dissipation mesh plate for energy storage equipment according to claim 1, characterized in that: The front and back sides of the panels are coated with an anti-corrosion coating.

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