A liquid leakage-proof battery holder

Abstract

This utility model discloses a leak-proof battery bracket, specifically relating to the field of battery technology. It includes a bracket body, a drain rack, a collection tank, and an expansion sealing strip. The drain rack is installed at the center of the drainage port, and the collection tank is located at the bottom of the bracket body. The expansion sealing strip surrounds the inner wall of the bracket body. The drainage port and drain rack form a drainage channel, allowing leaked liquid from the bottom sealing area to be quickly collected into an independent collection tank. This prevents liquid from stagnating and overflowing at the bottom of the bracket, avoids electrolyte corrosion of surrounding metal structures, and reduces the safety hazards of short circuits and fires. The modular collection tank can be independently disassembled, eliminating the need to remove the battery to clean accumulated liquid. It also monitors the liquid level in real time, promptly sending a notification to the vehicle control terminal if a leak occurs or the level approaches its limit. The bottom collection tank and bracket are connected by an embedded seal, and the expansion sealing strip on the bracket effectively prevents leakage at the joints.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a leak-proof battery holder. Background Technology

[0002] In automobiles and other vehicles, there are batteries that supply power to electrical equipment such as lighting, on-board computers, car audio systems, and navigation devices. The shape of the batteries is cuboid. A search revealed that patent publication number CN222005063U discloses a sliding rail type anti-pollution battery tray, including a tray frame, a collection component, an industrial rail, and a battery pressure plate. The tray frame has tray supports on both sides, and fixing pins are located at the four corners. The collection component is located at the center of the tray frame. The industrial rail is positioned on the surface of two sets of tray supports, and a battery pressure plate is located above the two sets of support frames. Limit blocks are located at the lower ends of both sets of industrial rails, and a retaining spring is attached to one end of a cylindrical pin passing through the limit block. A handle is located on the bottom surface of the tray frame. This sliding rail type anti-pollution battery tray, through the collection component, effectively prevents battery fluid leakage from corroding and contaminating the tank and ground, protecting the safety and cleanliness of the tank and ground. The stainless steel material has good corrosion resistance, effectively preventing corrosion and contamination, while also facilitating cleaning and maintenance. Furthermore, the use of industrial rails reduces pushing and pulling resistance, improving the moving efficiency of the battery tray. The inventors discovered the following problems with the existing technology during the development of this utility model: Existing battery brackets are subject to vibrations caused by vehicle movement, which cause the battery and bracket to vibrate. The contact surface between the battery bottom encapsulation and the bracket is subjected to repeated stress. Since the battery itself requires encapsulation and assembly, the vibration at the bottom of the casing can cause leakage at the seams over long-term use. This leakage can accumulate at the bottom of the bracket, forming a hidden pool of liquid. Once the liquid accumulation at the bottom of the bracket exceeds a certain amount, it may overflow from the edge gaps. Since the bracket is usually fixed with bolts, the liquid soaking the bottom of the battery for a long time will not only corrode the bracket structure but also affect surrounding components, potentially causing short circuits. Furthermore, manual troubleshooting requires disassembling the battery, which is time-consuming and labor-intensive. Therefore, a leak-proof battery holder is proposed to address the above problems. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a leak-proof battery holder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof battery bracket, comprising a bracket body, a drain rack, a collection tank, and an expansion sealing strip. The bottom of the bracket body has a drainage port, and the drain rack is installed at the center of the drainage port. The collection tank is located at the bottom of the bracket body. An infrared liquid level sensor is installed on the left side of the inner cavity of the collection tank. Mounting grooves are provided on both the front and rear ends of the collection tank. Mounting plates are provided on both the front and rear ends of the bracket body. The expansion sealing strip is arranged around the inner wall of the bracket body. A limiting groove is provided at the upper edge of the liquid collection tank. Fixed brackets are welded to the upper ends of both sides of the bracket body. A pressure plate is provided above the fixed bracket. Limiting rods are welded to the bottom of both ends of the pressure plate. Nuts are engaged with the outer surface of the limiting rods.

[0005] Preferably, the drain rack is provided in several groups, and the several groups of drain racks are distributed at equal intervals, and the bottom of the bracket body is welded with a limit frame.

[0006] Preferably, the limiting frame is embedded in the inner cavity of the limiting groove to achieve limiting, and the mounting groove is fixed by bolts engaging with the inner cavity of the mounting plate.

[0007] Preferably, a sealing strip is provided around the inner wall of the limiting groove, and the limiting frame abuts against the sealing strip.

[0008] Preferably, when the bracket body is embedded in the inner cavity of the limiting groove through the limiting frame, the mounting plate is linked to the mounting groove and connected to the liquid collection tank.

[0009] Preferably, the two sets of limiting rods pass through the upper ends of the two sets of fixed brackets respectively, and the pressure plate is installed by being inserted into the inner cavity of the upper end of the fixed bracket through the two sets of limiting rods and then engaged by a nut.

[0010] Preferably, the inner cavity of the flow guide is shaped like a rectangular funnel, and the inner cavity of the flow guide is in communication with the inner cavity of the liquid collection tank.

[0011] Preferably, two sets of infrared liquid level sensors are provided, and the two sets of infrared liquid level sensors are respectively placed at the upper and lower ends of the left side of the liquid collection tank.

[0012] The technical effects and advantages of this utility model are as follows: 1. Compared with existing technologies, this leak-proof battery bracket forms a flow channel with the liquid guide port and the drain rack, which can quickly collect the liquid leaking from the bottom sealing part into an independent collection tank, avoiding liquid stagnation and overflow at the bottom of the bracket, preventing electrolyte corrosion of the surrounding metal structure, reducing the safety hazards of short circuit and fire. The modular collection tank can be disassembled independently, and the battery can be cleaned without removing the battery. The liquid level is monitored in real time, and the liquid level will be promptly notified to the driver in the vehicle control terminal once the liquid leaks or approaches the upper limit.

[0013] 2. Compared with the existing technology, the leak-proof battery bracket is connected to the bracket by an embedded seal through the bottom liquid collection tank. With the expansion sealing strip installed on the bracket, the gap between the bracket, battery and mounting base is dynamically filled to form a double seal protection, effectively preventing leakage at the joint. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the liquid collection box of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the bracket body of this utility model.

[0017] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0018] The attached diagram is labeled as follows: 1. Bracket body; 2. Drainage port; 3. Drainage rack; 31. Limiting frame; 4. Collection tank; 5. Limiting groove; 51. Sealing strip; 6. Infrared liquid level sensor; 7. Mounting groove; 8. Mounting plate; 9. Expanding water-stopping strip; 10. Fixing bracket; 11. Pressure plate; 12. Limiting rod; 13. Nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0020] As attached Figures 1 to 4The diagram shows a leak-proof battery bracket, comprising a bracket body 1, a drain rack 3, a collection tank 4, and an expansion sealing strip 9. The bracket body 1 has a drainage port 2 at its bottom, serving as the core load-bearing structure. The drainage port 2 has a rectangular funnel-shaped inner cavity that communicates with the inner cavity of the collection tank 4. The drainage port 2 guides leaked liquid from the bottom of the battery enclosure. Its rectangular funnel design allows the liquid to flow into the bottom along the flow channel. A drain rack 3 is installed at the center of the drainage port 2, with spaced channels allowing liquid to pass through. The collection tank 4 is located at the bottom of the bracket body 1, serving as a separate storage tank to prevent liquid from accumulating at the bottom of the bracket body 1. An infrared liquid level sensor 6 is installed on the left side of the inner cavity of the collection tank 4. 6. The liquid level is monitored by emitting and receiving infrared light. When the liquid blocks the light, a signal change is triggered, indicating the risk of slight leakage and impending overflow, respectively. The notification is sent to the vehicle's control terminal so that the user can take action. The front and rear ends of the liquid collection tank 4 are provided with mounting grooves 7, and the front and rear ends of the bracket body 1 are provided with mounting plates 8. The mounting grooves 7 at the front and rear ends of the liquid collection tank 4 and the mounting plates 8 at the front and rear ends of the bracket body 1 are connected by bolts to ensure that the liquid collection tank 4 and the bracket body 1 are firmly connected. The expansion sealing strip 9 is surrounded on the inner wall of the bracket body 1. The expansion sealing strip 9 surrounding the inner wall of the bracket body 1 is compressed during battery installation, initially filling the gaps to prevent excessive leakage of electrolyte from affecting the bracket body 1. It expands to 2.5 times its original volume, tightly filling the dynamic gaps to form an elastic sealing film and blocking the leakage path. A limiting groove 5 is provided at the upper edge of the liquid collection tank 4, and a limiting frame 31 is welded to the bottom of the bracket body 1. The limiting groove 5 at the upper edge of the liquid collection tank 4 and the limiting frame 31 at the bottom of the bracket body 1 accurately position the installation position of the liquid collection tank 4 to achieve reliable installation. Fixed brackets 10 are welded to the upper ends of both sides of the bracket body 1. The fixed brackets 10 welded to the upper ends of both sides of the bracket body 1 are used to support the pressure plate 11. The pressure plate 11 is provided above the fixed brackets 10. Limiting rods 12 are welded to the bottom of both ends of the pressure plate 11. Nuts 13 are engaged with the outer surface of the limiting rods 12. With the cooperation of the limiting rods 12 and the nuts 13, the pressure plate 11 generates a downward pressing preload on the battery pack for installation. Example 2

[0021] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details: In a preferred embodiment, several sets of drain racks 3 are provided, and the sets of drain racks 3 are distributed at equal intervals. The gaps between the sets of drain racks 3 are used for liquid passage. The mounting groove 7 is fixed by bolts engaging with the inner cavity of the mounting plate 8. The bracket body 1 can be fixed to the mounting groove 7 of the liquid collection tank 4 by the mounting plate 8 and bolts. A sealing strip 51 is provided around the inner wall of the limiting groove 5. The limiting frame 31 and the sealing strip 51 abut against each other. The sealing strip 51 is made of EPDM rubber. When 31 is embedded, it is compressed and pressed together to form the first physical seal, preventing liquid from seeping out from the joint between the drain rack 3 and the collection tank 4. The limiting frame 31 is embedded in the inner cavity of the limiting groove 5 to achieve limiting. When the bracket body 1 is embedded in the inner cavity of the limiting groove 5 through the limiting frame 31, the mounting plate 8 is linked to the mounting groove 7 and the collection tank 4 to connect with each other. The bracket body 1 is embedded through the limiting frame 31 and uses the mounting plate 8 and bolts to achieve embedded installation. At the same time, it is fastened to the top of the collection tank 4 by bolts to achieve a stable connection.

[0022] In a preferred embodiment, two sets of limiting rods 12 pass through the upper ends of two sets of fixed brackets 10 respectively. The pressure plate 11 is connected to the fixed bracket 10 through the two limiting rods 12 to form a double-support symmetrical pressure structure. After the pressure plate 11 is inserted into the inner cavity of the upper end of the fixed bracket 10 through the two sets of limiting rods 12, it is installed by engaging with the nut 13. When the pressure plate 11 is installed into the fixed bracket 10 through the two sets of limiting rods 12, the pressure plate 11 presses the battery to fix it by tightening the nut 13.

[0023] In a preferred embodiment, two sets of infrared liquid level sensors 6 are provided. The two sets of infrared liquid level sensors 6 are respectively placed at the upper and lower ends of the left side of the liquid collection tank 4. One set of infrared liquid level sensors 6 at the bottom can detect leakage in time, while the other set of infrared liquid level sensors 6 at the upper position can detect whether the leakage liquid level has reached the danger zone.

[0024] The working process of this utility model is as follows: First, the fixed brackets 10 welded to the upper ends of both sides of the bracket body 1 are used to support the pressure plate 11. Two sets of limiting rods 12 pass through the upper end of the fixed bracket 10. The pressure plate 11 is inserted into the inner cavity of the fixed bracket 10 through the limiting rods 12 and then fixed by the nut 13. When the nut 13 is tightened, the pressure plate 11 generates a downward pre-tightening force on the battery pack, firmly pressing the battery into the bracket body 1. When leakage occurs at the bottom of the battery packaging part, the liquid flows directly to the guide port 2 at the bottom of the bracket body 1 under the action of gravity. The guide port 2 is in the shape of a rectangular funnel. Using the principle of fluid mechanics, the liquid is concentrated and guided into the collection tank 4 to avoid the liquid from stagnating at the bottom of the bracket body 1. Several sets of equally spaced drain racks 3 allow the liquid to pass through quickly through the spaced channels, while intercepting larger materials such as battery shell fragments and solid impurities in the liquid. The collection tank 4 serves as an independent storage space to collect the filtered leakage liquid, ensuring that the bottom of the bracket body 1 remains dry as much as possible and reducing the risk of corrosion to the metal structure of the bracket. Two sets of infrared liquid level sensors 6 are installed at the upper and lower ends of the left side of the inner cavity of the liquid collection tank 4 to monitor the liquid level in the tank in real time. The infrared liquid level sensor 6 at the bottom is used to detect the initial small leakage in time. Once the liquid blocks the infrared light, the sensor triggers a signal and transmits the leakage information to the vehicle control terminal to remind the driver that there is a slight leakage so that it can be checked and dealt with in time. The infrared liquid level sensor 6 at the upper end monitors whether the liquid level has reached the danger zone. When the liquid in the liquid collection tank 4 is close to overflowing, the sensor is triggered and sends a warning signal to the vehicle control terminal, requiring the vehicle to stop and deal with the problem as soon as possible to avoid the leakage from causing greater damage. The bracket body 1 and the collection tank 4 are stably connected through precise structural design. The limiting groove 5 on the upper edge of the collection tank 4 and the limiting frame 31 at the bottom of the bracket body 1 cooperate with each other. During installation, the limiting frame 31 is embedded in the limiting groove 5 to achieve precise positioning, ensuring accurate communication between the guide port 2 and the inner cavity of the collection tank 4, and limiting the relative displacement between the two. At the same time, the mounting grooves 7 at the front and rear ends of the collection tank 4 and the mounting plates 8 at the front and rear ends of the bracket body 1 are fastened with bolts to further strengthen the connection. The EPDM rubber sealing strip 51 surrounding the inner wall of the limiting groove 5 is compressed when the limiting frame 31 is embedded, forming a physical seal and preventing liquid from flowing out of the drain rack. When leakage occurs at the joint between battery 3 and the collection tank 4, the expanding sealing strip 9 is wrapped around the inner wall of the bracket body 1 as the last layer of protection against leakage. Under normal circumstances, it is compressed during battery installation and initially fills the gap between the battery and the bracket body 1. When a large amount of leakage occurs and the liquid breaks through the previous diversion, collection and sealing measures and has the tendency to rise into the interior of the bracket body 1 and continue to spread, the expanding sealing strip 9 will quickly expand to 2.5 times its original volume when it comes into contact with the electrolyte, tightly filling the dynamic gap and forming an elastic sealing film to prevent the leakage from spreading further. The above is the working principle of this type of leak-proof battery bracket.

Claims

1. A liquid leakage preventing battery holder comprising a holder body (1), a drip tray (3), a sump (4) and an expansion sealant strip (9), characterized in that: The bottom of the bracket body (1) is provided with a flow guide (2), and a drain rack (3) is installed at the center of the flow guide (2). The liquid collection tank (4) is located at the bottom of the bracket body (1). An infrared liquid level sensor (6) is installed on the left side of the inner cavity of the liquid collection tank (4). The front and rear ends of the liquid collection tank (4) are provided with mounting grooves (7). The front and rear ends of the bracket body (1) are provided with mounting plates (8). The expansion sealing strip (9) is arranged around the inner wall of the bracket body (1). A limiting groove (5) is provided at the upper edge of the liquid collection tank (4). Fixed brackets (10) are welded to the upper ends of both sides of the bracket body (1). A pressure plate (11) is provided above the fixed bracket (10). Limiting rods (12) are welded to the bottom of both ends of the pressure plate (11). Nuts (13) are engaged with the outer surface of the limiting rods (12).

2. A spill-proof battery holder as defined in claim 1, wherein: The drain rack (3) is provided in several groups, and the several groups of drain racks (3) are distributed at equal intervals. The bottom of the bracket body (1) is welded with a limit frame (31).

3. The leak-proof battery holder according to claim 2, characterized in that: The limiting frame (31) is embedded in the inner cavity of the limiting groove (5) to achieve limiting, and the mounting groove (7) is fixed by bolts engaging with the inner cavity of the mounting plate (8).

4. A spill-proof battery holder according to claim 3, wherein: The inner wall of the limiting groove (5) is surrounded by a sealing strip (51), and the limiting frame (31) abuts against the sealing strip (51).

5. A spill-proof battery holder according to claim 4, wherein: When the bracket body (1) is embedded into the inner cavity of the limiting groove (5) through the limiting frame (31), the mounting plate (8) is linked to the mounting groove (7) and the liquid collection tank (4) to connect with each other.

6. A spill-proof battery holder as defined in claim 1, wherein: The two sets of limiting rods (12) pass through the upper ends of the two sets of fixed brackets (10). The pressure plate (11) is inserted into the inner cavity of the upper end of the fixed bracket (10) through the two sets of limiting rods (12) and then engaged by the nut (13) to achieve installation.

7. A spill-proof battery holder as defined in claim 1, wherein: The inner cavity of the guide port (2) is shaped like a rectangular funnel, and the inner cavity of the guide port (2) is connected to the inner cavity of the liquid collection tank (4).

8. A spill-proof battery holder as defined in claim 1, wherein: The infrared liquid level sensor (6) is provided in two sets, and the two sets of infrared liquid level sensors (6) are respectively placed at the upper and lower ends of the left side of the liquid collection tank (4).

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