Modularized anti-corrosion water injection box for electric vehicle unit
By introducing a tensioning mechanism and sealing design into the water injection box for modular electric multiple units, the problem of loose connections under vibration and impact was solved, improving the stability and sealing of the water injection process and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-03
Smart Images
Figure CN224082664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water injection boxes for electric vehicles, and in particular to a modular, corrosion-resistant water injection box for electric vehicle sets. Background Technology
[0002] Modular corrosion-resistant water injection box for electric vehicle sets is a water injection device with specific functions and structural design for electric vehicle sets. During the use of electric vehicle set batteries, the water in the electrolyte will continuously evaporate, leading to an increase in electrolyte concentration and resistance, which will affect the performance and life of the battery. The function of the water injection box is to replenish water to the battery, maintain the electrolyte concentration at a suitable level, thereby extending the battery's lifespan and improving the battery's charging and discharging efficiency.
[0003] In water injection boxes, modular design facilitates maintenance and replacement, but the connection points between modules become weak points. Inadequate sealing design or aging / damaged sealing materials can easily lead to leakage of water or other corrosive substances. During electric vehicle operation, vibration and impact can cause the seals at the module connections to loosen, reducing the water injection box's corrosion resistance and consequently affecting its service life and the reliability of its water injection function. Existing technologies, by selecting materials with good corrosion resistance, aging resistance, elasticity, and sealing properties based on the water injection box's working environment, can maintain good sealing performance under different temperatures, humidity levels, and chemical substances. However, in actual use, the water injection box is still subject to vibration and impact, causing the connections to loosen and creating gaps, thus affecting the stability during water injection. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a modular, corrosion-resistant water injection box for electric vehicle units, aiming to improve the problem in the prior art where the water injection tank is affected by vibration and impact, and the connection part still becomes loose, resulting in gaps in the connection part and affecting the stability during water injection.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modular anti-corrosion water injection box for electric vehicle units, comprising a water injection tank, two hinges fixedly connected to the bottom front side of the water injection tank, a baffle fixedly connected to the top front side of each of the two hinges, semi-circular grooves opened on the left and right sides of the interior of the water injection tank, sealing tubes fixedly connected to the left and right sides of each baffle, two safety locks rotatably connected to the top front side of each baffle, a slot opened on the top inner side of the water injection tank, two water injection pipes connected to the rear inner side of the water injection tank, two connecting plates fixedly connected to the rear inner side of the water injection tank, screws threadedly connected to the four corners on the front side of each of the two connecting plates, the rear sides of multiple screws penetrating the connecting plates and threadedly connected to the rear inner side of the water injection tank, a liquid level indicator fixedly connected to the front side of each of the two connecting plates, two shock-absorbing blocks fixedly connected to the top inner side of the water injection tank, and a tensioning mechanism provided on the top inner side of the water injection tank for tensioning the baffle.
[0006] As a further description of the above technical solution:
[0007] The tensioning mechanism includes two fixed posts, one end of which is fixedly connected to the inner top of the water tank and the top rear side of the baffle, respectively. A first ring is fixedly connected between adjacent fixed posts, a hook lock is fixedly connected between adjacent first rings, a second ring is fixedly connected between adjacent hook locks, and a pull rope is fixedly connected between adjacent second rings.
[0008] As a further description of the above technical solution:
[0009] Two mounting plates are fixedly connected to the upper and lower sides of the water injection tank, and bolts are threaded to the front of the mounting plates.
[0010] As a further description of the above technical solution:
[0011] A handle is fixedly connected to the bottom of the baffle, and the handle has a chamfered design.
[0012] As a further description of the above technical solution:
[0013] The handle has multiple grooves on its inner bottom side, and all of the grooves are designed with a smooth surface.
[0014] As a further description of the above technical solution:
[0015] A lamp holder is fixedly connected to the top rear side of the inside of the water tank, and an indicator light is fixedly connected to the front side of the lamp holder.
[0016] As a further description of the above technical solution:
[0017] The two hinges are designed symmetrically, and the two sealing tubes are matched with the semi-circular grooves.
[0018] As a further description of the above technical solution:
[0019] The diameter of both safety locks is smaller than the diameter of the slot, and the two liquid level displays are electrically connected to the indicator lights.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, before water is injected, the baffle is opened and water flows in through the water injection pipe. During water injection, the liquid level display monitors the water level in real time. When the water is full, it will indicate that the water level is full. After water injection is finished, the baffle is closed. The sealing pipe and the semi-circular groove cooperate to prevent foreign objects. The safety lock is rotated and locked into the slot to stabilize the baffle. When closed, the safety lock touches the shock absorption block to reduce vibration and noise, thereby improving the stability during water injection.
[0022] 2. In this utility model, when the baffle is opened, the fixed column at the top of the baffle moves accordingly. Since the two fixed columns are respectively connected to the water tank and the baffle, their relative position changes, causing the first ring to shift. The movement of the first ring causes the connected hook lock to move. When the baffle is opened to a certain extent, the pull rope is tightened, generating a reverse pulling force on the hook lock, which restricts it from opening further, thereby protecting the equipment and ensuring smooth water injection operation. Attached Figure Description
[0023] Figure 1 This is a perspective view of a modular anti-corrosion water injection box for electric multiple units proposed in this utility model.
[0024] Figure 2 This is a front view of a modular anti-corrosion water injection box for electric multiple units proposed in this utility model;
[0025] Figure 3 This is a bottom view of a modular anti-corrosion water injection box for electric multiple units proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the screw structure of a modular corrosion-resistant water injection box for electric multiple units proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the hook lock structure of a modular corrosion-resistant water injection box for electric multiple units proposed in this utility model.
[0028] Legend:
[0029] 1. Water tank; 2. Tensioning mechanism; 201. Fixing column; 202. Ring 1; 203. Hook lock; 204. Ring 2; 205. Pull rope; 3. Hinge; 4. Baffle; 5. Semicircular groove; 6. Sealing tube; 7. Safety lock; 8. Slot; 9. Water injection pipe; 10. Connecting plate; 11. Screw; 12. Liquid level indicator; 13. Shock absorber; 14. Mounting plate; 15. Bolt; 16. Handle; 17. Groove; 18. Lamp holder; 19. Indicator light. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a modular, corrosion-resistant water injection box for electric vehicle units, comprising a water injection tank 1. Two hinges 3 are fixedly connected to the bottom front side of the water injection tank 1. A baffle 4 is fixedly connected to the top front side of each of the two hinges 3. The baffle 4 opens and closes via the hinges 3. Semicircular grooves 5 are formed on both the left and right sides of the interior of the water injection tank 1. Sealing pipes 6 are fixedly connected to both the left and right sides of the baffle 4. When the baffle 4 is closed, the sealing pipes 6 enter the semicircular grooves 5 to increase sealing. Two safety locks 7 are rotatably connected to the top front side of the baffle 4. A slot 8 is formed on the top inner side of the water injection tank 1. When the baffle 4 is closed, rotating the safety locks 7 causes them to engage with the slot 8, thus closing the baffle 4. Two water injection pipes 9 are connected to the rear inner side of the water injection tank 1 for water injection. Inside the water tank 1, two connecting plates 10 are fixedly connected to the rear side of the interior of the water tank 1. Screws 11 are threadedly connected to the four corners of the front side of the two connecting plates 10. The rear sides of the screws 11 all pass through the connecting plates 10 and are threadedly connected to the rear side of the interior of the water tank 1. The connecting plates 10 are fixed to the rear side of the interior of the water tank 1 by the screws 11. A liquid level indicator 12 is fixedly connected to the front side of the two connecting plates 10 to display the water level inside the water tank 1. Two shock-absorbing blocks 13 are fixedly connected to the top of the interior of the water tank 1. When the baffle 4 closes and drives the safety lock 7 to close, the rear side of the safety lock 7 will contact the shock-absorbing blocks 13 to reduce the vibration generated when the baffle 4 closes. A tensioning mechanism 2 is provided on the top of the interior of the water tank 1. The tensioning mechanism 2 is used to tension the baffle 4.
[0032] Specifically, two hinges 3 are fixed to the bottom front of the water tank 1. These two hinges 3 together support and connect to the same baffle 4. Through the hinges 3, the baffle 4 can be opened and closed flexibly. Semicircular grooves 5 are respectively opened on the left and right sides inside the water tank 1, and sealing tubes 6 are fixedly connected to the left and right sides of the baffle 4. When the baffle 4 is in the closed state, the sealing tubes 6 will accurately enter the interior of the semicircular grooves 5, thereby greatly enhancing the sealing of the connection and effectively preventing the entry of foreign objects. Two safety locks 7 are rotatably connected to the top front of the baffle 4. A slot 8 is opened on the top inner side of the water tank 1. When it is necessary to close the baffle 4, simply rotate the safety lock 7 so that it can smoothly enter the slot 8, thereby achieving a stable closure of the baffle 4 and ensuring safety during the water filling process. Two water filling pipes 9 are connected to the rear inner side of the water tank 1. These are the water filling channels. Water flows into the water tank 1 through the water injection pipe 9. Two connecting plates 10 are fixedly connected to the rear side of the inside of the water tank 1. Screws 11 are installed at the four corners of the front side of the two connecting plates 10 by means of threaded connection. The rear side of these screws 11 will pass through the connecting plates 10 and then be threaded to the rear side of the inside of the water tank 1, fixing the connecting plates 10 to the rear side of the inside of the water tank 1. A liquid level display 12 is fixedly connected to the front side of the two connecting plates 10. Its function is to clearly display the water level inside the water tank 1 in real time, so that the staff can keep track of the water volume information in the tank. Two shock-absorbing blocks 13 are fixedly connected to the top of the inside of the water tank 1. When the baffle 4 closes and drives the safety lock 7 to close, the rear side of the safety lock 7 will contact the shock-absorbing block 13, thereby effectively reducing the vibration generated when the baffle 4 closes, reducing noise, and extending the service life of the equipment.
[0033] Reference Figure 5 The tensioning mechanism 2 includes two fixed posts 201. One end of each fixed post 201 is fixedly connected to the top inner side of the water tank 1 and the rear top side of the baffle 4, respectively. A first ring 202 is fixedly connected between adjacent fixed posts 201. A hook lock 203 is fixedly connected between adjacent rings 202. A second ring 204 is fixedly connected between adjacent hook locks 203. A pull rope 205 is fixedly connected between adjacent rings 204. When the baffle 4 is opened, the pull rope 205 between adjacent rings 204 will pull the hook lock 203 on the baffle 4.
[0034] Specifically, one end of one fixing post 201 is fixed to the top inner side of the water tank 1, and one end of the other fixing post 201 is connected to the rear top of the baffle 4. A ring 1 202 is fixed at a position close to the two fixing posts 201. A hook lock 203 is fixedly connected to the side of the two rings 1 202 that are close to each other. A ring 204 is further connected to the two hook locks 203. A pull rope 205 is connected between the two rings 204. When the operator opens the baffle 4, the pull rope 205 between the two rings 204 will play a role, pulling the corresponding hook lock 203 on the baffle 4, thereby limiting the opening angle of the baffle 4 and preventing it from being opened too much, causing unnecessary damage or affecting operation.
[0035] Reference Figure 2 and Figure 3 Two mounting plates 14 are fixedly connected to the upper and lower sides of the water tank 1. Bolts 15 are threadedly connected to the front of the multiple mounting plates 14 for easy installation. A handle 16 is fixedly connected to the bottom of the baffle 4. The handle 16 has a chamfered design to make it easy to open the baffle 4. Multiple grooves 17 are provided on the bottom inner side of the handle 16 to fit the fingers. The multiple grooves 17 are all rounded to prevent injury to the fingers.
[0036] Specifically, two mounting plates 14 are fixedly connected to the upper and lower sides of the water tank 1. Each mounting plate 14 has a threaded hole on its front side. By screwing in the bolts 15, the water tank 1 can be firmly installed in the designated position. A handle 16 is fixed to the bottom of the baffle 4. The handle 16 has a chamfered design, which makes it easier for the operator to open the baffle 4. Multiple grooves 17 are opened on the bottom inner side of the handle 16. The shape of the grooves 17 fits the fingers and is rounded, which effectively avoids the situation of injury to the fingers during opening.
[0037] Reference Figure 2 and Figure 3 A lamp holder 18 is fixedly connected to the top rear side of the water tank 1. An indicator light 19 is fixedly connected to the front side of the lamp holder 18. When the water tank is full, the indicator light 19 lights up. The two hinges 3 are symmetrically designed. The two sealing tubes 6 are matched with the semi-circular groove 5. The diameters of the two safety locks 7 are smaller than the diameter of the slot 8. The two liquid level indicators 12 are electrically connected to the indicator light 19. When the liquid level indicator 12 is full, the indicator light 19 lights up.
[0038] Specifically, a lamp holder 18 is fixed to the top rear side inside the water tank 1. The indicator light 19 connected to the front of the lamp holder 18 plays a key role. When the water tank 1 is full, the indicator light 19 will light up. The two hinges 3 are symmetrically designed to ensure the stability of the opening and closing of the baffle 4. The two sealing tubes 6 are perfectly matched with the semi-circular groove 5, providing excellent sealing. The two safety locks 7 have a diameter smaller than the slot 8, making them easy to lock. The liquid level display 12 is electrically connected to the indicator light 19. When the liquid level display 12 shows that the tank is full, the indicator light 19 will also light up, providing a visual indication of the water filling status.
[0039] Working principle: Water from the outside flows into the water tank 1 through the water injection pipe 9 connected to the rear of the water tank 1. Before water injection, the baffle 4 can be opened through the handle 16 at the bottom of the baffle 4. During the water injection process, the liquid level display 12 monitors the water level in real time. When the liquid level reaches the full value, the liquid level display 12 will indicate that the water is full. After water injection is completed, the baffle 4 is closed. At this time, the sealing pipe 6 cooperates with the semi-circular groove 5 to enhance the sealing and prevent foreign objects from entering. The safety lock 7 is rotated and locked into the slot 8 to securely close the baffle 4 and ensure the safety of the water injection system. When the baffle 4 is closed and the safety lock 7 is closed, the rear side of the safety lock 7 contacts the shock absorber 13 to reduce vibration and noise, extend the service life of the equipment, and achieve a safe and efficient water injection function.
[0040] Furthermore, when the staff opens the baffle 4, the fixed column 201 connected to the rear top of the baffle 4 moves accordingly. Since the two fixed columns 201 are respectively connected to the water tank 1 and the baffle 4, the change in the relative position between the fixed columns 201 causes the displacement of the first ring 202. The change in the position of the first ring 202 causes the hook lock 203 connected to it to move as well. The second ring 204, which was originally connected to the two hook locks 203, changes its relative position with the pull rope 205 due to the movement of the hook lock 203. The pull rope 205 has a certain toughness and fixed length. When the baffle 4 is opened to a certain angle, the pull rope 205 is gradually tightened. The tightened pull rope 205 generates a pulling force on the hook lock 203 connected to it. The direction of this pulling force is opposite to the direction in which the baffle 4 continues to open. The hook lock 203 transmits the pulling force to the fixed column 201, which in turn acts on the baffle 4, limiting the baffle 4 from opening further. This effectively prevents the baffle 4 from being over-opened, protects the equipment from damage, and ensures that the water injection operation proceeds smoothly.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular corrosion-resistant water injection box for electric vehicle units, comprising a water injection tank (1), characterized in that: The water tank (1) has two hinges (3) fixedly connected to its front bottom. The top front of each hinge (3) is fixedly connected to the same baffle (4). Semicircular grooves (5) are provided on both the left and right sides of the interior of the water tank (1). Sealing pipes (6) are fixedly connected to both the left and right sides of the baffle (4). Two safety locks (7) are rotatably connected to the top front of the baffle (4). A slot (8) is provided on the top inner side of the water tank (1). Two water injection pipes (9) are connected to the rear inner side of the water tank (1). Two connecting plates (10) are fixedly connected to the side. Screws (11) are threaded to the four corners of the front side of the two connecting plates (10). The rear side of the screws (11) passes through the connecting plates (10) and is threaded to the rear side of the inside of the water tank (1). A liquid level indicator (12) is fixedly connected to the front side of the two connecting plates (10). Two shock-absorbing blocks (13) are fixedly connected to the top of the inner side of the water tank (1). A tensioning mechanism (2) is provided on the top of the inner side of the water tank (1). The tensioning mechanism (2) is used to tension the baffle (4).
2. The modular corrosion-resistant water injection box for electric multiple units according to claim 1, characterized in that: The tensioning mechanism (2) includes two fixed posts (201). One end of each fixed post (201) is fixedly connected to the top inner side of the water tank (1) and the rear top side of the baffle (4), respectively. A first ring (202) is fixedly connected between adjacent fixed posts (201). A hook lock (203) is fixedly connected between adjacent rings (202). A second ring (204) is fixedly connected between adjacent hook locks (203). A pull rope (205) is fixedly connected between adjacent rings (204).
3. The modular corrosion-resistant water injection box for electric vehicle units according to claim 1, characterized in that: The water tank (1) has two mounting plates (14) fixedly connected to its upper and lower sides, and the front sides of the multiple mounting plates (14) are threaded with bolts (15).
4. The modular anti-corrosion water injection box for electric vehicle units according to claim 1, characterized in that: The bottom of the baffle (4) is fixedly connected to a handle (16), which has a chamfered design.
5. A modular anti-corrosion water injection box for electric vehicle units according to claim 4, characterized in that: The handle (16) has multiple grooves (17) on its inner bottom, and all of the grooves (17) are rounded.
6. A modular anti-corrosion water injection box for electric vehicle units according to claim 1, characterized in that: A lamp holder (18) is fixedly connected to the top rear side of the water tank (1), and an indicator light (19) is fixedly connected to the front side of the lamp holder (18).
7. A modular corrosion-resistant water injection box for electric vehicle units according to claim 1, characterized in that: The two hinges (3) are designed symmetrically, and the two sealing tubes (6) are matched with the semi-circular grooves (5).
8. A modular anti-corrosion water injection box for electric vehicle units according to claim 6, characterized in that: The diameter of both safety locks (7) is smaller than the diameter of the slot (8), and the two liquid level displays (12) are electrically connected to the indicator light (19).