Battery protection plate with waterproof sealing function
By designing a cover plate and base that fit tightly together on the battery protection board, combined with a heat sink and heat dissipation fins, the contradiction between waterproof sealing and heat dissipation effect is resolved, achieving both waterproof sealing and efficient heat dissipation, thus improving the stability and service life of the battery protection board.
Patent Information
- Application Number
- CN202520220430.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In pursuing waterproof sealing, existing battery protection boards have coatings that increase thermal conductivity resistance, affecting heat dissipation and potentially leading to battery aging and damage.
A battery protection board with waterproof sealing function was designed. The sealing performance is enhanced by the tight fit between the cover plate and the base, combined with the heat sink and heat sink fins. At the same time, the waterproof effect is ensured by the combination design of rectangular ring, sealing ring and elastic ring, and the heat dissipation efficiency is improved by the heat sink and heat sink fins.
It achieves waterproofing while improving heat dissipation efficiency, ensuring stable operation of the battery protection board, enhancing sealing performance, preventing moisture intrusion, and extending battery life.
Smart Images

Figure CN223680291U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery protection board technical field, specifically is a battery protection board with waterproof sealing function. BACKGROUND
[0002] The battery protection board is mainly responsible for monitoring the voltage and current of the battery, and protects the battery from damage by controlling the charging and discharging of the battery. Its core function is to prevent overcharging, over-discharging, overcurrent, short circuit and over-temperature charging and discharging of the battery, so as to ensure the safe use of the battery and prolong its service life.
[0003] At present, the battery protection board widely adopts a special paint called three-proof paint when pursuing waterproof sealing effect. This paint is carefully coated on the outer surface of the circuit, which can form a dense protective film, effectively block the intrusion of external moisture, and enhance the stability and durability of the battery protection board in various harsh environments. However, it is worth noting that although the three-proof paint provides these important protection functions, its relatively thick coating may have a certain negative impact on the heat dissipation effect of the battery protection board, because the coating increases the resistance of heat conduction, making it difficult for the heat on the circuit board to be quickly dissipated to the surrounding environment, which may reduce the working efficiency of the battery to some extent, and even in some extreme cases, it may also accelerate the aging and damage of the battery. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides a battery protection board with waterproof sealing function, which solves the problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a battery protection board with waterproof sealing function, comprising a base, a battery protection board main body and a cover plate.
[0006] The upper surface of the base is downwardly recessed to form a placing cavity, the battery protection board main body is installed on the inner bottom wall of the placing cavity through bolts, and the cover plate is arranged on the base to close the placing cavity.
[0007] A heat sink is arranged on the inner bottom wall of the base, and the heat sink is in close contact with the lower surface of the battery protection board main body. One side of the heat sink extends to the lower side of the base, and a plurality of heat dissipation fins are arranged on the lower surface of the heat sink.
[0008] The outer periphery of the cover plate extends downward to form a wrapping edge, and the wrapping edge wraps around the outer side of the base.
[0009] Further, the inner top wall of the cover plate is integrally formed with a rectangular ring.
[0010] Corresponding to the rectangular ring, a rectangular recess for embedding the rectangular ring is formed in the upper end surface of the base.
[0011] Further, the inner bottom wall of the rectangular recess is provided with a sealing ring, which is in close contact with the lower end surface of the rectangular ring.
[0012] Further, elastic rings are arranged on the inner and outer sides of the rectangular ring.
[0013] Corresponding to the elastic rings, arc-shaped grooves for embedding the elastic rings are formed in the two side walls inside the rectangular recess.
[0014] Further, the top of the cover plate is provided with a visual window, and a protective cover is threadedly connected inside the visual window.
[0015] Further, support feet are arranged at the four corners of the lower surface of the base.
[0016] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:
[0017] The battery protection plate with waterproof sealing function effectively prevents external moisture from entering the inside of the base, ensures that the battery protection plate body is not affected by moisture, the heat dissipation plate is attached to the battery protection plate body, the heat dissipation fins below the heat dissipation plate effectively dissipate the heat generated by the battery protection plate body, improve the heat dissipation efficiency, ensure the stable operation of the battery protection plate, and the cooperation of the rectangular ring, the rectangular recess, the sealing ring and the elastic ring further improves the sealing performance between the cover plate and the base, and ensures the waterproof effect. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The present application is a split structure schematic diagram;
[0019] Figure 2 The present application is a whole structure schematic diagram;
[0020] Figure 3 The present application is a bottom view structure schematic diagram;
[0021] Figure 4 The present application is a cross-sectional structure schematic diagram;
[0022] Figure 5 The present application is Figure 4 The structure of A in the present application is enlarged and shown schematically.
[0023] In the figure: 1, base; 2, battery protection plate main body; 3, cover plate; 301, wrapping edge; 302, rectangular ring; 303, sealing ring; 304, elastic ring; 4, heat dissipation plate; 401, heat dissipation fin; 5, visual window; 6, protective cover. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Please refer to Figures 1-5 The battery protection plate with waterproof sealing function in the embodiment is used for playing the waterproof protection role on the battery protection plate and also playing the heat dissipation effect on the battery protection plate.
[0026] Specifically, it comprises the base 1, the battery protection plate main body 2 and the cover plate 3. The upper surface of the base 1 is concave downward to form a placing cavity, the battery protection plate main body 2 is installed on the inner bottom wall of the placing cavity through bolts, and the cover plate 3 is covered on the base 1 to close the placing cavity.
[0027] The heat dissipation plate 4 is arranged on the inner bottom wall of the base 1, and the heat dissipation plate 4 is attached to the lower surface of the battery protection plate main body 2. One side of the heat dissipation plate 4 extends to the lower side of the base 1, and a plurality of heat dissipation fins 401 are arranged on the lower surface of the heat dissipation plate 4. The outer circumferential surface of the cover plate 3 extends downward to form a wrapping edge 301, and the wrapping edge 301 wraps the outer side of the base 1.
[0028] In the actual use process, the battery protection plate main body 2 is installed in the base 1 through bolts, and the cover plate 3 is covered on the upper side of the base 1 to close the placing cavity. After installation, the battery protection plate main body 2 is separated from the heat dissipation plate 4. The heat generated by the battery protection plate main body 2 is transferred to the heat dissipation plate 4 and dissipated through the heat dissipation fins 401 under the heat dissipation plate 4, thereby playing the waterproof sealing protection role on the battery protection plate main body 2. In addition, the battery protection plate main body 2 plays the heat dissipation effect at the same time.
[0029] Further, the wrapping edge 301 arranged on the outer side of the cover plate 3 effectively wraps the outer surface of the base 1, so that the moisture in the outside enters the inside of the base 1.
[0030] Further, in order to increase the sealing effect between the cover plate 3 and the base 1, the inner top wall of the cover plate 3 is integrally formed with a rectangular ring 302; corresponding to the rectangular ring 302, a rectangular groove is formed in the upper end surface of the base 1, the inner bottom wall of the rectangular groove is provided with a sealing ring 303, the sealing ring 303 is in contact with the lower end surface of the rectangular ring 302, and elastic rings 304 are arranged on the inner and outer sides of the rectangular ring 302; corresponding to the elastic rings 304, arc-shaped grooves are formed in the two side walls inside the rectangular groove.
[0031] In actual use, when the cover plate 3 is covered on the base 1, the rectangular ring 302 on the cover plate 3 is embedded into the rectangular groove, the lower end surface of the rectangular ring 302 is in contact with the sealing ring 303, and the two side walls inside the rectangular groove compress the elastic rings 304 during the extension of the rectangular ring 302, the elastic rings 304 automatically rebound and are embedded into the arc-shaped grooves, further improving the sealing effect between the cover plate 3 and the base 1.
[0032] Preferably, in order to facilitate observation of the state of the battery protection plate body 2 inside the base 1 and maintenance of the battery protection plate body 2, the top of the cover plate 3 is provided with a viewing window 5, and the inside of the viewing window 5 is threadedly connected with a cover 6.
[0033] In actual use, the cover 6 can be connected with the viewing window 5 by forward and reverse rotation, and when the cover 6 is moved out of the inside of the viewing window 5, the state of the battery protection plate inside the base 1 can be directly observed.
[0034] In addition, support feet are arranged at the four corners of the lower surface of the base 1, the support feet are made of rubber, the height of the support feet is greater than the height of the heat dissipation fins 401, so that a certain heat dissipation gap is reserved between the heat dissipation fins 401 and the protection platform when the base 1 is placed.
[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A battery protection plate with waterproof sealing function, characterized in that: It comprises a base (1), a battery protection plate body (2) and a cover plate (3); The upper surface of the base (1) is inwardly concave to form a placing cavity, the battery protection plate body (2) is installed on the inner bottom wall of the placing cavity through bolts, and the cover plate (3) is arranged on the base (1) to close the placing cavity; A heat dissipation plate (4) is arranged on the inner bottom wall of the base (1), and the heat dissipation plate (4) is attached to the lower surface of the battery protection plate body (2), one side of the heat dissipation plate (4) extends to the lower side of the base (1), and a plurality of heat dissipation fins (401) are arranged on the lower surface of the heat dissipation plate (4); The outer periphery of the cover plate (3) extends downward to form a wrapping edge (301), and the wrapping edge (301) wraps the outer side of the base (1).
2. The battery protection plate with waterproof sealing function according to claim 1, characterized in that: A rectangular ring (302) is integrally arranged on the inner top wall of the cover plate (3); Corresponding to the rectangular ring (302), a rectangular groove is formed in the upper end surface of the base (1) for embedding the rectangular ring (302).
3. The battery protection plate with waterproof sealing function according to claim 2, characterized in that: A sealing ring (303) is arranged on the inner bottom wall of the rectangular groove, and the sealing ring (303) is attached to the lower end surface of the rectangular ring (302).
4. The battery protection plate with waterproof sealing function according to claim 2, characterized in that: Elastic rings (304) are arranged on the inner and outer sides of the rectangular ring (302). Corresponding to the elastic rings (304), arc-shaped grooves are formed in the two side walls inside the rectangular groove for embedding the elastic rings (304).
5. The battery protection plate with waterproof sealing function according to claim 1, characterized in that: A visible window (5) is arranged on the top of the cover plate (3), and a cover (6) is threadedly connected to the inside of the visible window (5).
6. The battery protection plate with waterproof sealing function according to claim 1, characterized in that: Supporting feet are arranged on the four corners of the lower surface of the base (1).