Waterproof lithium battery for new energy vehicle

Abstract

The utility model relates to the technical field of waterproof lithium batteries, and discloses a waterproof lithium battery for a new energy vehicle, which comprises a shell and a battery box, the bottom of the inner wall of the bottom shell is provided with a plurality of limiting grooves, the left side of the bottom of the inner wall of the bottom shell is fixedly connected with an isolation plate block, and the bottom of the battery box is fixedly connected with a heat absorption plate. The outer wall of the heat absorbing plate is clamped with the limiting groove, a plurality of limiting blocks are fixedly connected to the outer side of the battery box, a plurality of clamping grooves are formed in the inner wall of the isolating plate block, and the outer walls of the limiting blocks are clamped with the inner walls of the clamping grooves. According to the utility model, the limiting block is fixed with the clamping groove of the isolation plate block, the limiting block is limited and limited in the limiting groove, the trapezoidal baffle block allows the two battery boxes on the right side to be stacked, the fixing bolt is rotated, the control equipment is fixed above, the top cover and the bottom shell are fixed, and moisture is isolated, so that the stable installation of the battery boxes is ensured, and the loosening caused by vibration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of waterproof lithium battery technology, and in particular to a waterproof lithium battery for new energy vehicles. Background Technology

[0002] In the current booming development of new energy vehicles, waterproof lithium batteries for new energy vehicles play a crucial role as the core power source. These batteries not only need to provide stable and continuous power output to ensure the efficient operation of the vehicle, but also need to have excellent waterproof performance so as to cope with various complex weather and driving environments and ensure that the vehicle can drive safely and reliably in harsh conditions such as rain and waterlogged roads. Their performance directly affects the overall performance and safety of new energy vehicles.

[0003] Early lithium batteries for new energy vehicles mainly consisted of cells, electrodes, electrolyte, and a relatively simple casing. This structure had many problems, such as poor waterproofing and susceptibility to short circuits in humid environments. With technological advancements, existing waterproof lithium batteries for new energy vehicles have adopted sealant sealing and multi-layered waterproof casings to address the waterproofing issue. However, existing batteries still have significant defects in actual use. Due to the continuous vibration generated during vehicle operation, the existing battery fixing structure is not very secure. Vibration causes the battery to frequently loosen in its installation position. Once the battery is loose, the connection between the electrodes is prone to poor contact, leading to unstable battery output, seriously affecting the normal operation of new energy vehicles, and may even cause more serious safety hazards. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a waterproof lithium battery for new energy vehicles, aiming to improve the problem of low stability of the battery fixing structure in the prior art, which causes the battery to frequently loosen in the installation position due to vibration.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a waterproof lithium battery for new energy vehicles, comprising a bottom shell and a battery box. The bottom inner wall of the bottom shell has multiple limiting grooves. An insulating plate is fixedly connected to the left side of the bottom inner wall of the bottom shell. A heat-absorbing plate is fixedly connected to the bottom of the battery box, and the outer wall of the heat-absorbing plate engages with the limiting grooves. Multiple limiting blocks are fixedly connected to the outer side of the battery box. The inner wall of the insulating plate has multiple slots, and the outer wall of the limiting blocks engages with the inner wall of the slots. Trapezoidal blocks are fixedly connected to the front and rear sides of the inner wall of the bottom shell. A limiting block is fixedly connected to the top of each trapezoidal block. A fixing bolt is threaded onto the inner wall of each limiting block. Control devices are provided on the outer walls of two fixing bolts, and the outer walls of the fixing bolts engage with the inner walls of the control devices. A top cover is fixedly connected to the top of the bottom shell. A cooling mechanism is provided on the left side of the inner wall of the bottom shell for dissipating heat from the battery box.

[0006] As a further description of the above technical solution:

[0007] The cooling mechanism includes two temporary storage boxes. The left sides of the two temporary storage boxes are fixedly connected to the front and rear sides of the left inner wall of the bottom shell, respectively. The left sides of both temporary storage boxes penetrate the bottom shell and are connected to a heat dissipation box. Multiple heat dissipation blocks are fixedly connected to the inner wall of the heat dissipation box. A heat absorption pipe is connected to the right side of the temporary storage box. The outer wall of the heat absorption pipe penetrates multiple heat absorption plates and the bottom shell and is connected to a micro water pump. A water outlet pipe is connected to the rear side of the micro water pump. The other end of the water outlet pipe penetrates the bottom shell, multiple heat absorption plates and the temporary storage box, respectively, and is connected to the heat dissipation box.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the bottom shell is fixedly connected to L-shaped hollow plates on both the front and rear sides, and the inner wall of the L-shaped hollow plates is fixedly connected to multiple reinforcing strips.

[0010] As a further description of the above technical solution:

[0011] A groove is provided on the right side of the top edge of the outer wall of the top cover, and wiring ports are fixedly connected to the bottom front and rear sides of the inner wall of the groove.

[0012] As a further description of the above technical solution:

[0013] The top of the L-shaped hollow plate has multiple connection holes, and the bottom of the outer wall of the bottom shell has multiple heat dissipation plates fixedly connected.

[0014] As a further description of the above technical solution:

[0015] The bottom of the inner wall of the groove is provided with multiple drainage grooves, and the inner wall of the groove is rounded.

[0016] As a further description of the above technical solution:

[0017] A nameplate is fixedly connected to the front side of the L-shaped hollow plate, and a warning sign block is fixedly connected to the top of the outer wall of the top cover.

[0018] As a further description of the above technical solution:

[0019] A temperature sensor is fixedly connected to the front side of the top cover, and a status light is fixedly connected to the front side of the top of the outer wall of the top cover.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the battery box is fixed by the slot of the limiting block and the isolation plate to prevent shaking, and is limited by the limiting slot. The trapezoidal stop allows the two battery boxes on the right to be stacked. By rotating the fixing bolt, the control device is fixed on the top. The top cover is fixed to the bottom shell to isolate moisture. The heat absorption plate absorbs heat and transfers it to the bottom shell for heat dissipation, thereby ensuring that the battery box is stably installed and avoiding loosening due to vibration.

[0022] 2. In this utility model, coolant is stored in a temporary storage box and a heat dissipation box. When the battery box is working, the heat absorption plate absorbs heat and starts a micro water pump. The coolant is drawn from the temporary storage box through the heat absorption pipe, carrying away the heat on the heat absorption plate. It then enters the heat dissipation box through the water outlet pipe. The heat dissipation block in the heat dissipation box absorbs heat and helps to dissipate heat with the help of air flow, thereby achieving battery cooling. Attached Figure Description

[0023] Figure 1 This is a perspective view of a waterproof lithium battery for new energy vehicles proposed in this utility model;

[0024] Figure 2 This is a side view of a waterproof lithium battery for new energy vehicles proposed in this utility model;

[0025] Figure 3 This is a top view of a waterproof lithium battery for new energy vehicles proposed in this utility model;

[0026] Figure 4 This is a split view of a waterproof lithium battery for new energy vehicles proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of a cooling mechanism for a waterproof lithium battery used in new energy vehicles, as proposed in this utility model.

[0028] Legend:

[0029] 1. Bottom shell; 2. Cooling mechanism; 201. Temporary storage box; 202. Heat dissipation box; 203. Heat dissipation block; 204. Heat absorption pipe; 205. Miniature water pump; 206. Water outlet pipe; 3. Limiting groove; 4. Isolation plate; 5. Heat absorption plate; 6. Battery box; 7. Limiting block; 8. Slot; 9. Trapezoidal stop block; 10. Top cover; 11. Limiting block; 12. Fixing bolt; 13. Control device; 14. L-shaped hollow plate; 15. Reinforcing strip; 16. Groove; 17. Wiring port; 18. Connection hole; 19. Nameplate; 20. Warning sign block; 21. Temperature sensor; 22. Status light; 23. Drainage groove; 24. Heat dissipation plate. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a waterproof lithium battery for new energy vehicles, comprising a bottom shell 1 and a battery box 6. The bottom inner wall of the bottom shell 1 has multiple limiting grooves 3. An insulating plate 4 is fixedly connected to the left side of the bottom inner wall of the bottom shell 1. A heat-absorbing plate 5 is fixedly connected to the bottom of the battery box 6. The outer wall of the heat-absorbing plate 5 engages with the limiting grooves 3. Multiple limiting blocks 7 are fixedly connected to the outer side of the battery box 6. The inner wall of the insulating plate 4 has multiple slots 8. The outer wall of the limiting blocks 7 engages with the inner wall of the slots 8. The engagement and fixation of the outer limiting blocks 7 with the slots 8 above the insulating plate 4 prevents the battery box 6 from moving around in the bottom shell 1. Furthermore, the limiting grooves 3 further limit and fix a large number of battery boxes 6 on the left side. Trapezoidal blocks 9 are fixedly connected to both the front and rear sides of the inner wall. Limiting blocks 11 are fixedly connected to the top of the trapezoidal blocks 9. Fixing bolts 12 are threadedly connected to the inner wall of the limiting blocks 11. Control devices 13 are provided on the outer walls of the two fixing bolts 12. The outer walls of the fixing bolts 12 engage with the inner walls of the control devices 13. The trapezoidal blocks 9 can stack the two battery boxes 6 on the right side. At the same time, due to the limitation of the limiting blocks 11, the control devices 13 are fixed on the top by rotating the fixing bolts 12. A top cover 10 is fixedly connected to the top of the bottom shell 1. Under the action of the top cover 10, all the battery boxes 6 are wrapped up, thereby preventing the entry of external water. A cooling mechanism 2 is provided on the left side of the inner wall of the bottom shell 1. The cooling mechanism 2 is used to dissipate heat from the battery boxes 6.

[0032] Specifically, the battery box 6 is engaged and fixed with the slot 8 above the isolation plate 4 by the outer limiting block 7, preventing the battery box 6 from shaking around in the bottom shell 1. Under the restriction of the limiting slot 3, the large number of battery boxes 6 on the left side are further limited and fixed. The trapezoidal block 9 on the right side can stack the two battery boxes 6 on the right side. At the same time, due to the restriction of the limiting block 11, the control device 13 is fixed on it by rotating the fixing bolt 12. Finally, under the action of the top cover 10, all the battery boxes 6 are wrapped up, thereby preventing the entry of external water. Under the action of the heat absorption plate 5, the heat generated in the battery box 6 is absorbed and transferred to the top of the bottom shell 1 for heat dissipation. This allows the battery to be well fixed and installed inside, avoiding loosening due to vibration.

[0033] Reference Figure 2 , Figure 4 and Figure 5 The cooling mechanism 2 includes two temporary storage tanks 201. The left sides of the two temporary storage tanks 201 are fixedly connected to the front and rear sides of the left side of the inner wall of the bottom shell 1, respectively. The left sides of both temporary storage tanks 201 penetrate the bottom shell 1 and are connected to a heat dissipation box 202. The temporary storage tanks 201 and the heat dissipation box 202 store a large amount of cooling liquid. Multiple heat dissipation blocks 203 are fixedly connected to the inner wall of the heat dissipation box 202. The right side of the temporary storage tanks 201 is connected to a heat absorption pipe 204. The outer wall of the heat absorption pipe 204 penetrates multiple heat absorption plates 5 and the bottom shell 1 and is connected to a micro water pump 205. The rear side is connected to a water outlet pipe 206. The other end of the water outlet pipe 206 passes through the bottom shell 1, multiple heat absorption plates 5 and temporary storage box 201 respectively and is connected to the heat dissipation box 202. When the micro water pump 205 is started, the heat absorption pipe 204 draws the internal coolant from the temporary storage box 201. At this time, the coolant carries away the heat absorbed above the heat absorption plate 5 through the heat absorption pipe 204 and enters the heat dissipation box 202 through the water outlet pipe 206. The heat dissipation box 202 uses the heat dissipation block 203 to absorb the heat in the cooling water and dissipates the heat under the blowing of the outside air.

[0034] Specifically, a large amount of cooling liquid is stored in the temporary storage box 201 and the heat dissipation box 202. When the battery box 6 is working, the heat generated by it is absorbed by the heat absorption plate 5, and the micro water pump 205 is activated, so that the heat absorption pipe 204 draws the internal coolant from the temporary storage box 201. At this time, the coolant carries away the heat absorbed above the heat absorption plate 5 through the heat absorption pipe 204 and enters the heat dissipation box 202 through the water outlet pipe 206. The heat dissipation box 202 uses the heat dissipation block 203 to absorb the heat in the cooling water, and under the blowing of the outside air, the heat is dissipated, thereby completing the cooling of the battery when it is working.

[0035] Reference Figure 1 , Figure 3 and Figure 4The outer wall of the bottom shell 1 is fixedly connected to L-shaped hollow plates 14 on both the front and rear sides. The L-shaped hollow plates 14 can enhance the structural strength of the bottom shell 1. Multiple reinforcing strips 15 are fixedly connected to the inner wall of the L-shaped hollow plates 14, which can strengthen the stability of the L-shaped hollow plates 14. The top right side of the outer wall of the top cover 10 has a groove 16, which can provide a safe and convenient placement space for the electrical connection part of the battery. The bottom front and rear sides of the inner wall of the groove 16 are fixedly connected to wiring ports 17, which can ensure a reliable and stable electrical connection between the battery and the external wiring. Multiple connection holes 18 are opened on the top of the L-shaped hollow plates 14, which can firmly fix the battery in the designated position of the vehicle. Multiple heat dissipation plates 24 are fixedly connected to the bottom of the outer wall of the bottom shell 1, which can quickly absorb the heat generated inside the battery.

[0036] Specifically, the L-shaped hollow plate 14 enhances the structural strength of the bottom shell 1, and the reinforcing strip 15 strengthens the stability of the L-shaped hollow plate 14, making it less prone to bending or twisting under external forces. This greatly improves the stability of the entire battery structure in the face of vibration and impact, ensuring that the relative positions of the internal components of the battery remain fixed and avoiding problems such as loose wiring or cell damage caused by component displacement. The groove 16 provides a safe and convenient space for the electrical connection of the battery. The wiring port 17 ensures a reliable and stable electrical connection between the battery and the external wiring, ensuring smooth power transmission and avoiding unstable battery output caused by loose wiring or poor contact. The connection hole 18 can firmly fix the battery in the designated position of the vehicle, effectively enhancing the firmness of the battery installation, reducing the risk of battery loosening due to vibration during vehicle operation, ensuring that the battery remains stable during vehicle operation, thereby maintaining the stability of the internal electrode connection of the battery and ensuring normal battery operation. The heat sink 24 can quickly absorb the heat generated inside the battery and quickly conduct it to the external environment.

[0037] Reference Figure 1 , Figure 3 and Figure 4The inner wall of the groove 16 has multiple drainage grooves 23 at its bottom, which can quickly guide the drainage of accumulated water. The inner wall of the groove 16 is rounded to prevent water or other impurities from adhering to or remaining on the inner wall of the groove 16. A nameplate 19 is fixedly connected to the front side of the L-shaped hollow plate 14, which can be viewed to quickly obtain important information. A warning sign block 20 is fixedly connected to the top of the outer wall of the top cover 10, which can conspicuously remind relevant personnel of potential dangers during battery use. A temperature sensor 21 is fixedly connected to the front of the top cover 10, which can monitor the temperature of the top of the battery in real time. A status light 22 is fixedly connected to the front of the top of the outer wall of the top cover 10, which can intuitively show the user the working status of the battery.

[0038] Specifically, the drainage channel 23 can quickly guide water out of the groove 16 if external moisture accidentally enters it, preventing water from accumulating in the groove 16. The rounded inner wall of the groove 16 prevents water or other impurities from adhering to or remaining on the inner wall. The nameplate 19 allows users to quickly obtain important information, which helps to accurately identify the battery, perform corresponding operations and management, improve work efficiency, and also makes it convenient for users to understand the basic parameters of the battery, ensuring the correct use and maintenance of the battery. The warning sign block 20 can prominently remind relevant personnel of potential dangers during battery use, preventing non-professionals from damaging the battery due to misoperation or causing safety accidents due to lack of understanding of battery characteristics, providing an important reminder and protection for the safe use of the battery. The temperature sensor 21 can monitor the temperature of the top of the battery in real time, and the status light 22 can intuitively display the working status of the battery to the user.

[0039] Working principle: First, the battery box 6 is locked in place by the limiting block 7 on its outer side and the upper slot 8 of the isolation plate 4, preventing the battery box 6 from moving inside the bottom shell 1. At the same time, under the constraint of the limiting slot 3, the multiple battery boxes 6 on the left side are further positioned and fixed. Using the trapezoidal stop 9 on the right side, the two battery boxes 6 on the right side can be stacked. In addition, under the restriction of the limiting block 11, the control device 13 is fixed on top of it by rotating the fixing bolt 12. Finally, under the action of the top cover 10, all battery boxes 6 are completely wrapped, thereby preventing the intrusion of external moisture. Under the action of the heat absorption plate 5, the heat generated by the battery box 6 is absorbed and transferred to the top of the bottom shell 1 for heat dissipation, ensuring the stable installation of the battery inside and avoiding loosening caused by vibration.

[0040] Furthermore, through the cooling mechanism 2, a large amount of cooling liquid is stored in the temporary storage box 201 and the heat dissipation box 202. When the battery box 6 is operating, the heat generated is absorbed by the heat absorption plate 5, and then the micro water pump 205 is started. The micro water pump 205 causes the heat absorption pipe 204 to draw coolant from the temporary storage box 201. The coolant then transfers the heat absorbed above the heat absorption plate 5 through the heat absorption pipe 204 and flows into the heat dissipation box 202 through the water outlet pipe 206. The heat dissipation box 202 absorbs the heat in the cooling water with the help of the heat dissipation block 203, and the heat is dissipated under the action of external air flow, thereby achieving the cooling effect during battery operation.

[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 waterproof lithium battery for new energy vehicles, comprising a bottom shell (1) and a battery box (6), characterized in that: The bottom of the inner wall of the bottom shell (1) is provided with multiple limiting grooves (3). An insulating plate (4) is fixedly connected to the left side of the bottom of the inner wall of the bottom shell (1). A heat-absorbing plate (5) is fixedly connected to the bottom of the battery box (6). The outer wall of the heat-absorbing plate (5) is engaged with the limiting grooves (3). Multiple limiting blocks (7) are fixedly connected to the outer side of the battery box (6). Multiple slots (8) are provided on the inner wall of the insulating plate (4). The outer wall of the limiting block (7) is engaged with the inner wall of the slot (8). The inner walls of the bottom shell (1) are fixedly connected to the front and rear sides. A trapezoidal stop (9) is connected to the top of the trapezoidal stop (9), and a limit block (11) is fixedly connected to the top of the limit block (11). A fixing bolt (12) is threadedly connected to the inner wall of the limit block (11). A control device (13) is provided on the outer wall of each of the two fixing bolts (12). The outer wall of the fixing bolt (12) engages with the inner wall of the control device (13). A top cover (10) is fixedly connected to the top of the bottom shell (1). A cooling mechanism (2) is provided on the left side of the inner wall of the bottom shell (1). The cooling mechanism (2) is used to dissipate heat from the battery box (6).

2. The waterproof lithium battery for new energy vehicles according to claim 1, characterized in that: The cooling mechanism (2) includes two temporary storage boxes (201). The left sides of the two temporary storage boxes (201) are fixedly connected to the front and rear sides of the left side of the inner wall of the bottom shell (1), respectively. The left sides of the two temporary storage boxes (201) penetrate the bottom shell (1) and are connected to a heat dissipation box (202). Multiple heat dissipation blocks (203) are fixedly connected to the inner wall of the heat dissipation box (202). The right side of the temporary storage box (201) is connected to a heat absorption pipe (204). The outer wall of the heat absorption pipe (204) penetrates multiple heat absorption plates (5) and the bottom shell (1) and is connected to a micro water pump (205). The rear side of the micro water pump (205) is connected to a water outlet pipe (206). The other end of the water outlet pipe (206) penetrates the bottom shell (1), multiple heat absorption plates (5) and the temporary storage box (201) respectively and is connected to the heat dissipation box (202).

3. A waterproof lithium battery for new energy vehicles according to claim 1, characterized in that: The outer wall of the bottom shell (1) is fixedly connected to the front and rear sides of the outer wall with an L-shaped hollow plate (14), and the inner wall of the L-shaped hollow plate (14) is fixedly connected with a plurality of reinforcing strips (15).

4. A waterproof lithium battery for new energy vehicles according to claim 1, characterized in that: The top right side of the outer wall of the top cover (10) has a groove (16), and the bottom front and back sides of the inner wall of the groove (16) are fixedly connected with wiring ports (17).

5. A waterproof lithium battery for new energy vehicles according to claim 3, characterized in that: The top of the L-shaped hollow plate (14) is provided with multiple connection holes (18), and multiple heat dissipation plates (24) are fixedly connected to the bottom of the outer wall of the bottom shell (1).

6. A waterproof lithium battery for new energy vehicles according to claim 4, characterized in that: The inner wall of the groove (16) is provided with multiple drainage grooves (23), and the inner wall of the groove (16) is rounded.

7. A waterproof lithium battery for new energy vehicles according to claim 3, characterized in that: A nameplate (19) is fixedly connected to the front side of the L-shaped hollow plate (14), and a warning sign block (20) is fixedly connected to the top of the outer wall of the top cover (10).

8. A waterproof lithium battery for new energy vehicles according to claim 1, characterized in that: A temperature sensor (21) is fixedly connected to the front side of the top cover (10), and a status light (22) is fixedly connected to the front side of the top of the outer wall of the top cover (10).

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