Detection equipment for monitoring temperature in battery module

Abstract

The utility model relates to the technical field of battery detection devices, in particular to detection equipment for monitoring the temperature in a battery module. The device comprises a storage assembly, the storage assembly comprises a box body, a box cover is arranged at the top of the box body, a storage area and a preparation area are arranged in the box body, a battery pack is arranged in the storage area, heat dissipation assemblies are arranged on the surfaces of the box body and the box cover, and the heat dissipation assemblies are used for dissipating heat accumulated in the storage area due to abnormal temperature rise of the battery pack in time. Sensing assemblies are arranged on a pair of inner side walls, far away from each other, of the box body; according to the detection equipment for monitoring the temperature in the battery module, the arranged heat dissipation assembly is used for dissipating heat accumulated due to abnormal temperature rise of a battery pack in the storage area in time, the sensing assembly is used for sensing abnormal temperature rise phenomena of different parts in the storage area in time, and then the driving assembly is used for driving the sensing assembly to reach the position above the preparation area; and entering an induction state.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection devices, in particular to a detection device for monitoring the temperature inside a battery module. Background Art

[0002] Temperature is a key factor affecting battery performance, safety, and lifespan. Battery modules generate heat during operation. Excessive temperatures, whether too high or too low, can negatively impact battery performance. Temperature distribution within the module also impacts overall battery performance. Temperature variations between individual cells within a module can lead to inconsistent battery performance. By monitoring the temperature distribution within the module, we can understand the operating status of each individual cell, thereby optimizing battery management strategies and improving overall battery pack performance.

[0003] There are many existing technologies for battery temperature detection equipment, such as:

[0004] Chinese patent announcement No. CN220251214U discloses a temperature detection device for an energy storage battery, which includes a battery body and a detection machine. The upper end of the battery body is fixedly connected with two positive and negative electrode columns, and the two electrode columns are electrically connected to the detection connector through connecting lines. The detection connector is located on the upper side of the front end face of the detection machine. The upper end of the detection machine is rotatably connected with a front fixing plate located at the front end face of the battery body. The left and right sides of the rear end face of the front fixing plate are both installed with side fixing plates located on the left and right sides of the battery body. The rear ends of the two side fixing plates are installed with rear fixing plates located on the rear end face of the battery body. The side fixing plates are first assembled with the front fixing plates, and the first telescopic plates are stretched to both sides to lengthen the front fixing plates so that the side fixing plates can fit with the left and right sides of the battery body. Then, the second telescopic plate located at the rear of the side fixing plates is pulled backward, and then the rear fixing plate is clamped to fix the detection device to the battery body to maintain stability during detection. The operation is simple and the installation speed is fast.

[0005] Existing battery temperature detection devices typically install a temperature sensor within the battery pack. When the temperature around the battery rises, the sensor senses the temperature change and issues an alarm or activates a heat dissipation mechanism to dissipate heat from the battery. However, if the heat generated by the battery pack accumulates in a single location or is not transferred to the temperature sensor, the sensor may not be able to detect the abnormal temperature increase in time, leading to damage to the battery pack due to the sensor's failure to respond in a timely manner. For example, the energy storage battery temperature detection device proposed in the aforementioned patent detects the battery temperature using a detection device fixed to the battery body, but it is difficult to detect abnormal temperature increases in various parts of the battery body in a timely and accurate manner.

[0006] In view of this, we propose a detection device for monitoring the temperature inside the battery module to improve the shortcomings of the existing technology. Utility Model Content

[0007] The purpose of the present invention is to provide a detection device for monitoring the temperature inside a battery module to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides a detection device for monitoring the temperature inside a battery module, including a storage component, the storage component including a box body, a box cover is provided on the top of the box body, a storage area and a preparation area are provided in the box body, a battery pack is provided in the storage area, a heat dissipation component is provided on the surface of the box body and the box cover, the heat dissipation component is used to promptly dissipate the heat accumulated in the storage area due to abnormal heating of the battery pack, a pair of inner side walls of the box body that are separated from each other are provided with a sensing component, the sensing component is used to promptly sense abnormal heating phenomena in different parts of the storage area, a driving component is provided on the inner side wall of the box body, the driving component is parallel to the sensing component, and the driving component is used to drive the sensing component to reach above the preparation area and enter the sensing state.

[0009] As a further improvement of the present technical solution, the heat dissipation assembly includes a plurality of mounting slots on the side wall of the box body and a plurality of heat dissipation holes on the box cover. Fans are provided in each of the mounting slots and are driven by a motor.

[0010] As a further improvement of the present technical solution, the sensing component includes a limiting rod fixedly connected to a pair of inner side walls that are away from each other in the box body, the limiting rod is located above the storage area and the preparation area, and a sensing base is slidably connected to the limiting rod. Memory springs are fixedly connected between the sensing base and the two inner side walls that are away from each other in the box body, and the two memory springs are both sleeved on the outer periphery of the limiting rod. A number of probes are provided at the bottom of the sensing base.

[0011] As a further improvement of the present technical solution, the driving assembly includes a slide rail fixedly connected to the inner wall of the box body, the slide rail is parallel to the limit rod, the slide rail is slidably connected to a slide seat on the side close to the limit rod, and several pulleys are rotatably connected in the slide seat, and the pulleys are driven by a motor.

[0012] As a further improvement of the present technical solution, the sliding seat and the sensing seat are fixedly connected, and a temperature sensor is provided at the bottom of the probe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the detection equipment for monitoring the temperature inside the battery module, a heat dissipation component is provided to promptly dissipate the heat accumulated inside the storage area due to abnormal heating of the battery pack, a sensing component is used to promptly sense abnormal heating phenomena in different parts of the storage area, and a driving component is used to drive the sensing component to the top of the preparation area and enter the sensing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of the present utility model;

[0017] Figure 3 This is a structural diagram of the storage component and the heat dissipation component of an embodiment of the utility model;

[0018] Figure 4 This is a structural diagram of the sensing component of an embodiment of the utility model;

[0019] Figure 5 This is a structural diagram of the drive assembly of an embodiment of the present utility model.

[0020] The meaning of each number in the figure is:

[0021] 10. Storage assembly; 11. Box body; 12. Box cover; 13. Storage area; 14. Preparation area;

[0022] 20. Battery pack;

[0023] 30. Heat dissipation assembly; 31. Heat dissipation holes; 32. Fan;

[0024] 40. Sensing assembly; 41. Limit rod; 42. Sensing base; 43. Memory spring; 44. Probe;

[0025] 50. Drive assembly; 51. Slide rail; 52. Slide seat; 53. Pulley. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example

[0028] See also Figure 1-Figure 5As shown, this embodiment provides a detection device for monitoring the temperature in a battery module, including a storage component 10, the storage component 10 includes a box body 11, a box cover 12 is provided on the top of the box body 11, a storage area 13 and a preparation area 14 are provided in the box body 11, a battery pack 20 is provided in the storage area 13, a heat dissipation component 30 is provided on the surface of the box body 11 and the box cover 12, the heat dissipation component 30 is used to promptly dissipate the heat accumulated in the storage area 13 due to abnormal heating of the battery pack 20, a pair of inner side walls of the box body 11 that are away from each other are provided with a sensing component 40, the sensing component 40 is used to promptly sense abnormal heating phenomena in different parts of the storage area 13, a driving component 50 is provided on the inner wall of the box body 11, the driving component 50 is parallel to the sensing component 40, and the driving component 50 is used to drive the sensing component 40 to reach above the preparation area 14 and enter the sensing state.

[0029] Working principle: When the detection device for monitoring the temperature inside the battery module provided by the present invention is used, the heat dissipation component 30 is used to promptly dissipate the heat accumulated in the storage area 13 due to the abnormal heating of the battery pack 20, the sensing component 40 is used to promptly sense the abnormal heating phenomenon in different parts of the storage area 13, and the driving component 50 is used to drive the sensing component 40 to reach the top of the preparation area 14 and enter the sensing state.

[0030] In order to promptly dissipate the heat accumulated inside the storage area 13 due to the abnormal heating of the battery pack 20, the heat dissipation component 30 includes a plurality of mounting slots on the side wall of the box body 11 and a plurality of heat dissipation holes 31 on the box cover 12. Fans 32 are provided in each of the mounting slots, and the fans 32 are driven by a motor. When the sensing component 40 senses that the battery pack 20 in the storage area 13 is abnormally heated, the sensing component 40 transmits a signal to the motor coaxially connected to the fan 32, and the motor drives the fan 32 coaxially connected to its own output shaft to rotate. The fan 32 blows the cold air outside the box body 11 into the storage area 13 inside the box body 11, thereby discharging the heat around the battery pack 20 to the outside of the box body 11 through the heat dissipation holes 31.

[0031] Taking into account the need to timely sense abnormal temperature rise phenomena in different parts of the storage area 13, the sensing component 40 includes a limit rod 41 fixedly connected to a pair of inner side walls of the box body 11 that are separated from each other. The limit rod 41 is located above the storage area 13 and the preparation area 14. A sensing seat 42 is slidably connected to the limit rod 41. Memory springs 43 are fixedly connected between the sensing seat 42 and the two inner side walls of the box body 11 that are separated from each other. The two memory springs 43 are both sleeved on the outer periphery of the limit rod 41. A number of probes 44 are provided at the bottom of the sensing seat 42. The memory spring 43 is made of memory metal. Before the battery assembly 20 works, the driving assembly 50 drives the sensing seat 42 to slide above the preparation area 14. At this time, the memory spring 43 located above the storage area 13 is in a stretched state, and the memory spring 43 located above the preparation area 14 is in a contracted state. According to the shape memory characteristics of the memory metal, the two memory springs 43 will maintain their deformed state after being deformed in the low-temperature phase. If an abnormality occurs in the battery pack 20 and the temperature in the box 11 rises, causing the memory spring 43 to enter the high-temperature phase, the deformed memory spring 43 will return to its original state, and the restoring force of the memory spring 43 will drive the sensing seat 42 to move above the storage area 13. The temperature sensor on the probe 44 will sense the temperature change in the storage area 13. The temperature sensor is a PT100 temperature sensor.

[0032] In order to drive the sensing component 40 to reach the top of the preparation area 14 and enter the sensing state, the driving component 50 includes a slide rail 51 fixedly connected to the inner side wall of the box body 11, the slide rail 51 is parallel to the limit rod 41, and the slide rail 51 is slidably connected to the side of the limit rod 41 near the limit rod 41. A plurality of pulleys 53 are rotatably connected in the slide rail 52, and the pulleys 53 are driven by a motor; the slide rail 52 is fixedly connected to the sensing seat 42, and a temperature sensor is provided at the bottom of the probe 44; after the heat dissipation component 30 dissipates the heat in the box body 11, the temperature sensor at the bottom of the probe 44 transmits a low temperature signal to the motor coaxially connected to the pulley 53, and the motor drives the pulley 53 coaxially connected to its own output shaft to rotate. Under the action of the friction between the pulley 53 and the slide rail 51, the slide rail 51 is driven to move along the slide rail 51, thereby driving the sensing seat 42 back to the top of the preparation area 14, and at the same time the memory spring 43 is deformed again in the low temperature phase.

[0033] The detection device for monitoring the temperature in the battery module provided by the present invention is used in specific use. The heat dissipation component 30 is used to promptly dissipate the heat accumulated in the storage area 13 due to the abnormal heating of the battery pack 20. Specifically, when the sensing component 40 senses that the battery pack 20 in the storage area 13 is abnormally heated, the sensing component 40 transmits a signal to the motor coaxially connected to the fan 32. The motor drives the fan 32 coaxially connected to its own output shaft to rotate. The fan 32 blows cold air from the outside of the box 11 into the storage area 13 in the box 11, thereby discharging the heat around the battery pack 20 to the outside of the box 11 through the heat dissipation holes 31; the sensing component 40 is used to promptly sense the abnormal heating phenomenon of different parts in the storage area 13. Specifically, the memory spring 43 is made of memory metal. Before the battery assembly 20 works, the driving component 50 drives the sensing seat 42 to slide above the preparation area 14. At this time, the memory spring 43 above the storage area 13 is in a stretched state, and the memory spring 43 above the preparation area 14 is in a contracted state. Due to the shape memory characteristics of the memory metal, the memory spring 43 is in a stretched state. It can be seen that after the two memory springs 43 are deformed in the low temperature phase, they will maintain the deformed state. If the battery pack 20 has an abnormality and the temperature in the box 11 increases, the memory spring 43 enters the high temperature phase. The deformed memory spring 43 will return to its original state, and the restoring force of the memory spring 43 will drive the sensing seat 42 to move above the storage area 13. The temperature sensor on the probe 44 will sense the temperature change in the storage area 13. The temperature sensor is a PT100 temperature sensor; then the driving component 50 is used to The driving sensing component 40 reaches above the preparation area 14 and enters the sensing state. Specifically, after the heat dissipation component 30 dissipates the heat in the box 11, the temperature sensor at the bottom of the probe 44 transmits the low-temperature signal to the motor coaxially connected to the pulley 53. The motor drives the pulley 53 coaxially connected to its own output shaft to rotate. Under the action of the friction between the pulley 53 and the slide rail 51, the slide 52 is driven to move along the slide rail 51, thereby driving the sensing base 42 back to above the preparation area 14. At the same time, the memory spring 43 is deformed again in the low-temperature phase.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for monitoring the temperature inside a battery module, characterized in that: The invention comprises a storage assembly (10), wherein the storage assembly (10) comprises a box (11), a box cover (12) is provided on the top of the box (11), a storage area (13) and a preparation area (14) are provided in the box (11), a battery pack (20) is provided in the storage area (13), and a heat dissipation assembly (30) is provided on the surface of the box (11) and the box cover (12), and the heat dissipation assembly (30) is used to promptly dissipate the heat generated in the storage area (13) due to abnormality of the battery pack (20). The heat accumulated due to temperature rise is sensed by a pair of inner side walls of the box body (11) that are spaced apart from each other. A sensing assembly (40) is provided on the inner side wall of the box body (11). The sensing assembly (40) is used to timely sense abnormal temperature rise phenomena at different parts of the storage area (13). A driving assembly (50) is provided on the inner side wall of the box body (11). The driving assembly (50) is parallel to the sensing assembly (40). The driving assembly (50) is used to drive the sensing assembly (40) to reach above the preparation area (14) to enter a sensing state.

2. The detection device for monitoring the temperature inside a battery module according to claim 1, characterized in that: The heat dissipation assembly (30) comprises a plurality of mounting slots provided on the side wall of the box body (11) and a plurality of heat dissipation holes (31) provided on the box cover (12). Fans (32) are provided in each of the mounting slots, and the fans (32) are driven by a motor.

3. The detection device for monitoring the temperature inside a battery module according to claim 1, characterized in that: The sensing assembly (40) includes a limiting rod (41) fixedly connected to a pair of inner side walls of the box (11) that are separated from each other. The limiting rod (41) is located above the storage area (13) and the preparation area (14). A sensing seat (42) is slidably connected to the limiting rod (41). Memory springs (43) are fixedly connected between the sensing seat (42) and the two inner side walls of the box (11) that are separated from each other. The two memory springs (43) are both sleeved on the outer periphery of the limiting rod (41). A plurality of probes (44) are provided at the bottom of the sensing seat (42).

4. The detection device for monitoring the temperature inside a battery module according to claim 3, characterized in that: The driving assembly (50) comprises a slide rail (51) fixedly connected to the inner wall of the box body (11), the slide rail (51) and the limit rod (41) are parallel, the slide rail (51) is slidably connected to a slide seat (52) on the side close to the limit rod (41), and a plurality of pulleys (53) are rotatably connected in the slide seat (52), and the pulleys (53) are driven by a motor.

5. The detection device for monitoring the temperature inside a battery module according to claim 4, characterized in that: The sliding seat (52) and the sensing seat (42) are fixedly connected, and a temperature sensor is provided at the bottom of the probe (44).

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