New energy automobile power battery

Abstract

The utility model belongs to the technical field of new energy batteries, and discloses a new energy automobile power battery which comprises a battery pack, a semiconductor cooler is fixedly mounted at the top of the battery pack, heat dissipation fins which are linearly distributed are fixedly mounted at the top of the semiconductor cooler, a mounting groove is formed in the middle of the battery pack, and the heat dissipation fins are fixedly mounted in the mounting groove. Protection plates are fixedly mounted on the two sides of the mounting groove, mounting plates are slidably mounted on the inner sides of the two protection plates, and when data which are fed back to the data analysis module by the two same sensors in each group and processed by the data analysis module are the same or similar, it is indicated that the sensors in the group are normal; when the data fed back to the data analysis module by the two same sensors in each group is different and the difference value is large, at least one sensor in the group is damaged, at the moment, the mounting plate can be detached, and the sensors in the group are taken out, detected and replaced; therefore, the safety problem caused by inaccurate detection of the batteries in the battery pack due to the damage of the sensor is prevented.

Description

Technical Field

[0001] The present application belongs to the technical field of new energy batteries, and specifically relates to a new energy vehicle power battery. Background Art

[0002] With the continuous development of the global economy and the increase in energy demand, new energy battery technology has become one of the key technologies for solving energy and environmental problems. Especially with the popularization of new energy vehicles, how to improve battery life and safety has become an important technical issue in the development of new energy vehicles.

[0003] In the prior art, the innovation of new energy battery technology based on intelligent control can improve the density of batteries in a limited space, thereby effectively improving the battery life. However, due to the changeable and complex operating environment of automobiles, increasing the battery density will inevitably bring certain battery safety issues. Therefore, various combinations of sensor components and batteries that play a monitoring role are applied to new energy battery technology to detect battery problems early. However, the sensors installed inside the battery are consumable parts. Once damage occurs and cannot be detected in time, the internal problems of the battery cannot be effectively detected. Therefore, in order to solve this problem, a new energy vehicle power battery is proposed. Utility Model Content

[0004] The purpose of this application is to provide a new energy vehicle power battery in order to solve the above-mentioned problems.

[0005] The technical solution adopted in this application is as follows: a new energy vehicle power battery, including a battery pack, a semiconductor cooler is fixedly installed on the top of the battery pack, and linearly distributed heat dissipation fins are fixedly installed on the top of the semiconductor cooler.

[0006] A mounting groove is opened in the middle of the battery pack, and protective plates are fixedly installed on both sides of the mounting groove. A mounting plate is slidably installed on the inner sides of the two protective plates. A circuit board is fixedly installed on the bottom of the middle groove of the mounting plate, and a sensor, a transformer and a data analysis module are respectively installed on the top of the circuit board by screws.

[0007] A push plate is fixedly installed on the outer side of the mounting plate, and wedge-shaped rods are fixedly installed on both sides of the push plate facing the battery pack. Sockets are fixedly installed on the outer wall of the battery pack on both sides of the mounting groove, and the sockets are provided with jacks that are compatible with the wedge-shaped rods.

[0008] In a preferred embodiment, the cold end of the semiconductor refrigerator is in contact with the top of the battery pack, the hot end of the semiconductor refrigerator is connected to the inner cavity of the heat dissipation fin, the inner cavity connecting the hot end of the semiconductor refrigerator and the heat dissipation fin is filled with cooling grease, and a heat dissipation fan is fixedly installed on the top of the heat dissipation fin.

[0009] In a preferred embodiment, limit slide bars are fixedly mounted on both sides of the mounting plate, and a slide groove matching the limit slide bar of the mounting plate is provided on the inner side of the protective plate.

[0010] In a preferred embodiment, the protective plate is provided with closely spaced through holes, and the mounting plate is provided with through grooves on both sides thereof that are arranged opposite to the through holes.

[0011] In a preferred embodiment, the sensors are in multiple groups, each group has two sensors of the same model, and the sensors include at least a temperature detection sensor and a gas detection sensor.

[0012] In a preferred embodiment, a locking block with a spring at the end is slidably installed on the outer side of the insertion hole in the socket, and the opposite ends of the locking block and the wedge rod are both inclined.

[0013] In a preferred embodiment, the outer wall of the wedge-shaped rod is provided with a slot matched with the locking block, and the outer end of the locking block is fixedly connected to a pull rod plugged into the outer wall of the socket.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In the present application, a semiconductor refrigerator is arranged on the top of the battery pack. When the batteries in the battery pack generate high temperature due to long-term charging and discharging, the semiconductor refrigerator is started to cool the cold end attached to the battery pack to cool the battery pack, and the heat generated by the hot end of the semiconductor refrigerator is absorbed by the cooling oil in the heat dissipation fins. At this time, the heat dissipation fan is started to generate wind force to blow air to the heat dissipation fins on the hot end of the semiconductor refrigerator to dissipate heat, thereby ultimately achieving the purpose of cooling the battery pack.

[0016] 2. In the present application, by setting relevant components on the circuit board, when the mounting plate is slid into the mounting slot in the middle of the battery pack, when the batteries in the battery pack are working, the multiple sensors on the circuit board will detect the batteries and feed back the data to the data analysis module for processing to detect whether the batteries in the battery pack are in a normal state. Here, since the number of sensors in each group is two and the model is the same, when the data fed back to the data analysis module for processing by the two identical sensors in each group are the same or similar, it indicates that the group of sensors is normal. When the data fed back to the data analysis module for processing by the two identical sensors in each group are different and the difference is large, it indicates that at least one sensor in the group is damaged. At this time, the mounting plate can be removed, and the sensors of the group can be taken out for inspection and replaced to prevent damage to the sensors from causing inaccurate battery detection in the battery pack and causing safety problems.

[0017] 3. In the present application, by setting a wedge rod and a locking block, when the mounting plate is installed to the mounting slot on the battery pack, the wedge rods on both sides of the push plate will be inserted into the jacks in the socket, and then the locking block will be moved outward to make way until the wedge rod is fully inserted into place. At this time, the locking block will encounter the slot on the wedge rod and can be engaged into the slot under the reset of the spring, thereby limiting and fixing the wedge rod, so that the mounting plate is firmly installed in the battery pack. When the sensor on the mounting plate is damaged and needs to be replaced, first pull the pull rod to drive the locking block to be pulled out of the slot on the wedge rod, so as to release the limit lock on the wedge rod. At this time, pull the push plate outward to drive the mounting plate to slide out of the battery pack, so as to replace the sensor conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure when the mounting plate is removed from the battery pack in this application;

[0019] Figure 2 This is a schematic diagram of the battery pack structure in this application;

[0020] Figure 3 This is a schematic diagram of the structure of the wedge rod and the locking block in this application.

[0021] Markings in the figure: 1-battery pack, 2-semiconductor refrigerator, 3-cooling fin, 4-cooling fan, 5-mounting slot, 6-protective plate, 7-mounting plate, 8-slide slot, 9-through hole, 10-through slot, 11-circuit board, 12-sensor, 13-transformer, 14-data analysis module, 15-push plate, 16-wedge rod, 17-socket, 18-jack, 19-lock block, 20-card slot, 21-pull rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Reference Figure 1 , 2 A new energy vehicle power battery includes a battery pack 1, a semiconductor refrigerator 2 is fixedly installed on the top of the battery pack 1, and linearly distributed heat dissipation fins 3 are fixedly installed on the top of the semiconductor refrigerator 2. The cold end of the semiconductor refrigerator 2 is in contact with the top of the battery pack 1, and the hot end of the semiconductor refrigerator 2 is connected to the inner cavity of the heat dissipation fin 3. The inner cavity where the hot end of the semiconductor refrigerator 2 is connected to the heat dissipation fin 3 is filled with cooling grease, and a heat dissipation fan 4 is fixedly installed on the top of the heat dissipation fin 3.

[0024] By arranging a semiconductor refrigerator 2 on the top of the battery pack 1, when the batteries in the battery pack 1 generate high temperature due to long-term charging and discharging, the semiconductor refrigerator 2 is started to cool the cold end attached to the battery pack 1 to cool the battery pack 1, and the heat generated by the hot end of the semiconductor refrigerator 2 is absorbed by the cooling oil in the heat dissipation fins 3. At this time, the heat dissipation fan 4 is started to generate wind power to blow air to the heat dissipation fins 3 on the hot end of the semiconductor refrigerator 2 to dissipate heat, thereby ultimately achieving the purpose of cooling the battery pack 1.

[0025] Reference Figure 1 , 2 A mounting groove 5 is provided in the middle of the battery pack 1, and protective plates 6 are fixedly installed on both sides of the mounting groove 5. Mounting plates 7 are slidably installed on the inner sides of the two protective plates 6. Limiting slide bars are fixedly installed on both sides of the mounting plates 7. A slide groove 8 compatible with the upper limit slide bar of the mounting plate 7 is provided on the inner side of the protective plate 6. Densely arranged through holes 9 are provided on the upper side of the protective plate 6. Through grooves 10 arranged opposite to the through holes 9 are provided on both sides of the mounting plate 7. A circuit board 11 is fixedly installed on the bottom of the middle groove of the mounting plate 7, and sensors 12, transformers 13 and data analysis modules 14 are respectively installed on the top of the circuit board 11 by screws. There are multiple groups of sensors 12, and the number of sensors 12 in each group is two and the model is the same. There are at least temperature detection sensors and gas detection sensors in the sensors 12.

[0026] By setting the relevant components on the circuit board 11, after the mounting plate 7 is slidably installed into the mounting slot 5 in the middle of the battery pack 1, when the batteries in the battery pack 1 are working, the multiple sensors 12 on the circuit board 11 will detect the batteries and feed back the data to the data analysis module 14 for processing to detect whether the batteries in the battery pack 1 are in a normal state. Here, since the number of sensors 12 in each group is two and the model is the same, when the data fed back to the data analysis module 14 for processing by the two identical sensors 12 in each group are the same or similar, it means that the group of sensors 12 is normal. When the data fed back to the data analysis module 14 for processing by the two identical sensors 12 in each group are different and the difference is large, it means that at least one sensor 12 in the group is damaged. At this time, the mounting plate 7 can be removed, and the sensors 12 of the group can be taken out for detection and replaced, so as to prevent the damage of the sensors 12 from causing inaccurate detection of the batteries in the battery pack 1 and causing safety problems.

[0027] Reference Figure 1 , 23. A push plate 15 is fixedly installed on the outer side of the mounting plate 7. Wedge rods 16 are fixedly installed on both sides of the push plate 15 facing the battery pack 1. Sockets 17 are fixedly installed on the outer wall of the battery pack 1 on both sides of the mounting groove 5. A plug hole 18 matched with the wedge rod 16 is opened on the socket 17. A lock block 19 with a spring at the end is slidably installed on the outer side of the plug hole 18 in the socket 17. The opposite ends of the lock block 19 and the wedge rod 16 are both inclined. A slot 20 matched with the lock block 19 is opened on the outer wall of the wedge rod 16. The outer end of the lock block 19 is fixedly connected with a pull rod 21 inserted into the outer wall of the socket 17.

[0028] By providing the wedge rod 16 and the locking block 19, when the mounting plate 7 is installed into the mounting slot 5 on the battery pack 1, the wedge rods 16 on both sides of the push plate 15 will be inserted into the sockets 18 in the socket 17, and then the locking block 19 will be moved outward to make way until the wedge rod 16 is fully inserted into place. At this time, the locking block 19 encounters the slot 20 on the wedge rod 16 and can be engaged into the slot 20 under the reset of the spring, thereby limiting and fixing the wedge rod 16, so that the mounting plate 7 is firmly installed in the battery pack 1. When the sensor 12 on the mounting plate 7 is damaged and needs to be replaced, the pull rod 21 is first pulled to drive the locking block 19 to be pulled out of the slot 20 on the wedge rod 16, so that the limiting lock of the wedge rod 16 can be released. At this time, pulling the push plate 15 outward can drive the mounting plate 7 to slide out of the battery pack 1, so that the sensor 12 can be replaced conveniently and quickly.

[0029] The implementation principle of the embodiment of the present application is:

[0030] First, by setting a semiconductor refrigerator 2 on the top of the battery pack 1, when the batteries in the battery pack 1 generate high temperature due to long-term charging and discharging, the semiconductor refrigerator 2 is started to cool the cold end attached to the battery pack 1 to cool the battery pack 1, and the heat generated by the hot end of the semiconductor refrigerator 2 is absorbed by the cooling oil in the heat dissipation fins 3. At this time, the heat dissipation fan 4 is started to generate wind power to blow air to the heat dissipation fins 3 on the hot end of the semiconductor refrigerator 2 to dissipate heat, thereby ultimately achieving the purpose of cooling the battery pack 1.

[0031] Furthermore, by setting relevant components on the circuit board 11, after the mounting plate 7 is slidably installed into the mounting slot 5 in the middle of the battery pack 1, when the batteries in the battery pack 1 are working, the multiple sensors 12 on the circuit board 11 will detect the batteries and feed back the data to the data analysis module 14 for processing to detect whether the batteries in the battery pack 1 are in a normal state. Here, since the number of sensors 12 in each group is two and the model is the same, when the data fed back to the data analysis module 14 for processing by the two identical sensors 12 in each group are the same or similar, it indicates that the group of sensors 12 is normal. When the data fed back to the data analysis module 14 for processing by the two identical sensors 12 in each group are different and the difference is large, it indicates that at least one sensor 12 in the group is damaged. At this time, the mounting plate 7 can be removed, and the sensors 12 of the group can be taken out for detection and replaced, so as to prevent the damage of the sensors 12 from causing inaccurate detection of the batteries in the battery pack 1 and causing safety problems.

[0032] In addition, by providing the wedge rod 16 and the locking block 19, when the mounting plate 7 is installed into the mounting slot 5 on the battery pack 1, the wedge rods 16 on both sides of the push plate 15 will be inserted into the sockets 18 in the socket 17, and then the locking block 19 will first abut against and move outward to make way until the wedge rod 16 is fully inserted into place. At this time, the locking block 19 encounters the slot 20 on the wedge rod 16 and can be engaged into the slot 20 under the reset of the spring, thereby limiting and fixing the wedge rod 16, so that the mounting plate 7 is firmly installed in the battery pack 1. When the sensor 12 on the mounting plate 7 is damaged and needs to be replaced, first pull the pull rod 21 to drive the locking block 19 to be pulled out of the slot 20 on the wedge rod 16, so as to release the limit lock of the wedge rod 16. At this time, pull the push plate 15 outward to drive the mounting plate 7 to slide out of the battery pack 1, so as to replace the sensor 12 conveniently and quickly.

[0033] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A new energy vehicle power battery, comprising a battery pack (1), characterized in that: A semiconductor refrigerator (2) is fixedly mounted on the top of the battery pack (1), and linearly distributed heat dissipation fins (3) are fixedly mounted on the top of the semiconductor refrigerator (2); The battery pack (1) has a mounting groove (5) in the middle, protective plates (6) are fixedly mounted on both sides of the mounting groove (5), mounting plates (7) are slidably mounted inside the two protective plates (6), a circuit board (11) is fixedly mounted on the bottom of the middle groove of the mounting plate (7), and a sensor (12), a transformer (13) and a data analysis module (14) are respectively mounted on the top of the circuit board (11) by means of screws; A push plate (15) is fixedly mounted on the outer side of the mounting plate (7), wedge-shaped rods (16) are fixedly mounted on both sides of the push plate (15) facing the battery pack (1), and sockets (17) are fixedly mounted on both sides of the mounting groove (5) on the outer wall of the battery pack (1), and the sockets (17) are provided with plug holes (18) adapted to the wedge-shaped rods (16).

2. A new energy vehicle power battery as claimed in claim 1, characterized in that: The cold end of the semiconductor refrigerator (2) is in contact with the top of the battery pack (1), the hot end of the semiconductor refrigerator (2) is in communication with the inner cavity of the heat dissipation fin (3), the inner cavity where the hot end of the semiconductor refrigerator (2) and the heat dissipation fin (3) are connected is filled with cooling grease, and a heat dissipation fan (4) is fixedly mounted on the top of the heat dissipation fin (3).

3. A new energy vehicle power battery as claimed in claim 1, characterized in that: Limiting slide bars are fixedly mounted on both sides of the mounting plate (7), and a slide groove (8) adapted to the limiting slide bar of the mounting plate (7) is provided on the inner side of the protection plate (6).

4. A new energy vehicle power battery as claimed in claim 1, characterized in that: The protective plate (6) is provided with closely spaced through holes (9), and the mounting plate (7) is provided with through slots (10) on both sides thereof, the through holes (9) being arranged opposite to the through holes (9).

5. A new energy vehicle power battery as claimed in claim 1, characterized in that: The sensors (12) are provided in multiple groups, each group of the sensors (12) comprises two sensors (12) of the same model, and the sensors (12) include at least a temperature detection sensor and a gas detection sensor.

6. A new energy vehicle power battery as claimed in claim 1, characterized in that: A locking block (19) with a spring at the end is slidably mounted on the outside of the insertion hole (18) in the socket (17), and the opposite ends of the locking block (19) and the wedge-shaped rod (16) are both inclined.

7. A new energy vehicle power battery as claimed in claim 6, characterized in that: The outer wall of the wedge-shaped rod (16) is provided with a slot (20) adapted to the locking block (19), and the outer end of the locking block (19) is fixedly connected to a pull rod (21) plugged into the outer wall of the socket (17).

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