Battery pack leakage detection device

Abstract

The utility model relates to the field of detection devices of new energy battery packs, in particular to a battery pack leakage detection device which comprises a water inlet connector, one end of the water inlet connector is connected with a vehicle body, the other end of the water inlet connector is detachably connected with a water pipe connector, a bent pipe is arranged on the water pipe connector, one end of the bent pipe is connected with the water pipe connector, and the other end of the bent pipe is connected with the water pipe connector. One end of the liquid cooling plate is connected with the liquid cooling plate, the other end of the liquid cooling plate is connected with an electronic throttle valve, the electronic throttle valve is fixed on the bottom liquid cooling plate through a fixing device, and a flowmeter is arranged on the electronic throttle valve, so that the problems that when leakage of the battery pack is found at the present stage, irreversible damage is caused to the battery pack, and the danger coefficient of a driver is increased in the driving process are solved; and the maintenance cost of the battery pack can be obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of detection devices for new energy battery packs, and specifically to a battery pack leakage detection device. Background Technology

[0002] With the development of science and technology and the progress of society, people are becoming more and more accepting of new energy vehicles, and the market for new energy vehicles is gradually expanding. The battery pack is the core component of new energy vehicles, and ensuring the safety of the battery pack is the key to the design and manufacturing process of new energy vehicles.

[0003] Currently, battery pack leak detection involves monitoring from inside the battery pack. By the time a leak is detected, irreversible damage has already been caused to the battery pack, increasing the risk to the driver during driving and significantly increasing the maintenance cost of the battery pack.

[0004] At present, a battery pack leakage detection device is proposed to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a battery pack leakage detection device. The leakage monitoring device is placed at the water inlet for monitoring, and can take countermeasures as soon as a leakage occurs. This addresses the current problem that when a battery pack leakage is discovered, it has already caused irreversible damage to the battery pack, increasing the risk to the driver during driving and significantly increasing the maintenance cost of the battery pack.

[0006] The technical solution of this utility model is as follows:

[0007] A battery pack leakage detection device is located outside the battery pack and includes a water inlet connector. One end of the water inlet connector is connected to the vehicle body, and the other end is detachably connected to a water pipe connector. The water pipe connector is provided with a bend, one end of which is connected to the water pipe connector, and the other end is connected to an electronic throttle valve. The electronic throttle valve is fixed to the bottom liquid cooling plate by a fixing device. A flow meter is provided on the electronic throttle valve, and the flow meter is connected to the vehicle signal.

[0008] Further, it also includes a second bend, one end of which is connected to the first bend, and the other end of which is connected to the electronic throttle valve.

[0009] Furthermore, the water inlet connector is provided with a connecting plate, and the connecting plate is provided with connecting holes.

[0010] Further specifying, the water pipe connector is a T-type connector, one end of the water pipe connector is connected to the water inlet connector, and the other end is provided with a sealing protrusion, which is connected to the first bend pipe.

[0011] Further specified, both the first bend and the second bend are corrugated pipes, each corrugated pipe having a corrugated end in the middle and straight pipe sections on both sides. One side of the straight pipe section of the first bend is connected to the water pipe joint, and the other side of the straight pipe section is connected to one side of the straight pipe section of the second bend. The other side of the straight pipe section of the second bend is connected to the electronic throttle valve.

[0012] Furthermore, the water pipe connector is provided with a first movable locking block, and the water inlet connector is provided with a first retaining ring adapted to the first movable locking block. The water pipe connector is detachably installed on the water inlet connector through the cooperation of the first movable locking block and the first retaining ring.

[0013] Further specifying, the fixing device is a fixing column, the fixing column is provided with a second retaining ring, the electronic throttle valve is provided with a second movable block, the electronic throttle valve is detachably installed on the fixing column through the cooperation of the second movable block and the second retaining ring, and the lower part of the fixing column is installed on the bottom liquid cooling plate.

[0014] The advantages of this utility model over the current technology are as follows:

[0015] 1. An external monitoring design is adopted, which uses changes in flow rate and pressure to monitor from the source, enabling earlier detection of battery pack leakage problems and greatly reducing the negative impact of leakage on the battery pack.

[0016] 2. By connecting with the vehicle's signal system, a signal can be sent to the vehicle immediately when a leak occurs, and the vehicle will then issue an alarm signal, giving the driver ample reaction time.

[0017] 3. Reduced maintenance costs: It can reduce the labor costs added during the maintenance process due to unpacking. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the water inlet connector of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the water pipe connector of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the fixing column of this utility model.

[0022] The markings in the diagram correspond to: 1-water inlet connector, 11-connecting plate, 12-connecting hole, 13-first retaining ring, 2-water pipe connector, 21-first movable retaining block, 22-sealing protrusion, 3-first bend, 4-second bend, 5-corrugated end, 6-straight pipe section, 7-electronic throttle valve, 8-fixed buckle, 9-flow meter, 10-fixed column, 101-second retaining ring, 102-second movable retaining block. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0024] like Figures 1-4 As shown, a battery pack leakage detection device is located outside the battery pack. It includes a water inlet connector 1 with a connecting plate 11 and a connecting hole 12. One end of the water inlet connector 1 is connected to the vehicle body via screws and the connecting hole 12, while the other end is detachably connected to a water pipe connector 2. The water pipe connector 2 is a T-type connector with a first movable locking block 21. The water inlet connector 1 has a first retaining ring 13 that matches the first movable locking block 21. The water pipe connector 2 is detachably mounted on the water inlet connector 1 through the cooperation of the first movable locking block 21 and the first retaining ring 13. The other end has a sealing protrusion 22. The device also includes a first bend 3 and a second bend 4, both of which are corrugated pipes, including a corrugated end 5 in the middle and straight pipe sections 6 on both sides. The straight pipe section 6 on one side of the first bend 3 is connected to the water pipe connector 2. The sealing protrusion 22 of the pipe joint 2 is connected to the straight pipe section 6 on the other side and the straight pipe section 6 on one side of the second bend 4. The straight pipe section 6 at the other end of the second bend 4 is connected to the electronic throttle valve 7. The corrugated pipe is a flexible hose that can change direction at will, which facilitates the layout of the pipeline. A fixing buckle 8 is provided at the connection of the straight pipe section 6 of the first bend 3 and the second bend 4 to better fix the connection between the first bend 3 and the second bend 4. A flow meter 9 is provided on the electronic throttle valve 8. The flow meter 9 is connected to the vehicle signal. A fixing post 10 is provided below the electronic throttle valve 7. A second retaining ring 101 is on the fixing post 10. A second movable retaining block 102 is designed on the electronic throttle valve 7. The electronic throttle valve 7 is detachably installed on the fixing post 10 through the cooperation of the second movable retaining block 102 and the second retaining ring 101. The lower part of the fixing post 10 is installed on the bottom liquid cooling plate.

[0025] The battery pack receives water through the inlet based on the water flow rate data sent by the vehicle. The water inflow rate is related to the internal water pressure of the battery pack; the inflow rate is faster when the water level is low and slower when the water level is high. A flow meter monitors the water flow data in real time and feeds the data signal back to the vehicle. The vehicle compares the actual water inflow velocity with the simulation model of the expected water inflow velocity. If the actual water inflow velocity is higher than the expected velocity and the difference between the actual and simulated velocities exceeds a predetermined value, a leak is detected inside the battery pack. The vehicle immediately transmits a signal and stops the water inflow. If the actual water inflow velocity is lower than the expected velocity and the difference between the actual and simulated velocities exceeds a predetermined value, liquid redundancy is detected in the battery pack.

[0026] The above provides a detailed description of a battery pack leakage detection device provided by this utility model. The specific embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the scope of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A battery pack leak detection apparatus located externally of a battery pack, characterized by: The utility model provides an electronic throttle valve water cooling device, including water inlet joint (1), one end of water inlet joint (1) is connected with the car body, the other end detachably connected with water pipe joint (2), be provided with first elbow pipe (3) on water pipe joint (2), one end of first elbow pipe (3) is connected with water pipe joint (2), the other end is connected with electronic throttle valve (7), electronic throttle valve (7) is fixed on the bottom liquid cooling plate through fixing device, be provided with flowmeter (9) on electronic throttle valve (7), flowmeter (9) is connected with whole vehicle signal.

2. The battery pack leak detection apparatus of claim 1, wherein: Also including second elbow pipe (4), one end of second elbow pipe (4) is connected with first elbow pipe (3), the other end is connected with electronic throttle valve (7).

3. The battery pack leak detection apparatus of claim 1, wherein: Be provided with connecting plate (11) on water inlet joint (1), be provided with connecting hole (12) on connecting plate (11).

4. The battery pack leak detection apparatus of claim 2, wherein: Water pipe joint (2) is T joint, one end of water pipe joint (2) is connected with water inlet joint (1), the other end is provided with sealing protrusion (22), and sealing protrusion (22) is connected with first elbow pipe (3).

5. The battery pack leak detection apparatus of claim 4, wherein: First elbow pipe (3) and second elbow pipe (4) are both bellows, and the bellows include corrugated end (5) in the middle and straight pipe portion (6) on both sides, one side straight pipe portion (6) of first elbow pipe is connected with water pipe joint (2), and the other side straight pipe portion (6) is connected with one side straight pipe portion (6) of second elbow pipe, and the other side straight pipe portion (6) of second elbow pipe is connected with electronic throttle valve (7).

6. The battery pack leak detection apparatus of claim 1, wherein: Be provided with first movable clamping block (21) on water pipe joint (2), be provided with the first clamping ring (13) of adapting first movable clamping block (21) on water inlet joint (1), water pipe joint (2) is detachably installed on water inlet joint (1) through the cooperation of first movable clamping block (21) and first clamping ring (13).

7. The battery pack leak detection apparatus of claim 1, wherein: The fixing device is fixed column (10), be provided with second clamping ring (101) on fixed column (10), be provided with second movable clamping block (102) on electronic throttle valve (7), electronic throttle valve (7) is detachably installed on fixed column (10) through the cooperation of second movable clamping block (102) and second clamping ring (101), and the lower part of fixed column (10) is installed on the bottom liquid cooling plate.

8. The battery pack leak detection apparatus of claim 1, wherein: The connecting place of first elbow pipe (3) and second elbow pipe (4) is provided with fixed buckle (8).

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