CCS assembly, battery pack and electric equipment

Abstract

The utility model provides a CCS assembly, a battery pack and electric equipment, a containing part of the CCS assembly is arranged in a protruding mode towards the side away from a battery, a containing groove communicated with an opening is formed in the side, facing the opening, of the containing part, a temperature detection piece can be placed in the containing groove, and at least part of the temperature detection piece is exposed out of the opening to detect the temperature of a battery module. The containing part can protect the temperature sensor, block large-amplitude displacement of the temperature sensor, prevent the temperature detector from falling off due to impact of the external environment in the using process, improve the accuracy of temperature data monitoring and guarantee the safety of the battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a CCS assembly, a battery pack and a power consumption device. BACKGROUND

[0002] In the related art, a battery module is usually provided with a battery temperature detection member to monitor the temperature change of the battery in real time, especially during the charging and discharging process of the battery. The temperature change reflects the working state of the battery. However, the temperature detector may fall off due to external environmental impact during use, affecting the accuracy of temperature data detection, and causing the problem that the overheating of the battery cannot be found in time, thereby increasing the risk of battery failure or safety accidents. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a CCS assembly, a battery pack and a power consumption device, which can improve the technical problem that the temperature detection member is prone to falling off.

[0004] In a first aspect, embodiments of the present application provide a CCS assembly, which comprises:

[0005] a base for connecting the battery module, the base comprising a bottom plate and a receiving portion, the bottom plate being provided with an opening, the receiving portion being connected to the bottom plate and protruding away from the battery module, the receiving portion being at least partially disposed opposite the opening, and the receiving portion being provided with a receiving groove on a side thereof facing the opening and in communication with the opening;

[0006] a temperature detection member disposed in the receiving groove and close to the battery module, the temperature detection member being at least partially exposed to the opening, and the temperature detection member being configured to detect the temperature of the battery module.

[0007] In some embodiments, the receiving portion comprises a top plate and two oppositely disposed side plates, the two side plates being spaced apart and protruding away from the bottom plate on a side thereof facing away from the battery module, the temperature detection member being located between the two side plates, the top plate being located on a side of the temperature detection member facing away from the battery module, and the two opposite sides of the top plate being connected to one of the side plates, respectively.

[0008] In some embodiments, the receiving portion further comprises an end plate, the end plate being protruding away from the bottom plate on a side thereof facing away from the battery module and being connected between the two side plates, an end of the end plate facing away from the battery being connected to the top plate, and a through line opening being formed between the two side plates on an end thereof facing away from the end plate.

[0009] The CCS assembly further comprises a connecting line, the connecting line being disposed in the through line opening and being connected to the temperature detection member.

[0010] In some embodiments, the receiving portion exposes a portion of the opening, the exposed portion of the opening communicates with the threading port, and the connecting wire passes through the exposed portion of the opening and the threading port.

[0011] In some embodiments, the CCS component further includes a limiting member mounted on the base plate, and the connecting wire is snapped into the limiting member.

[0012] In some embodiments, the top plate is provided with through holes.

[0013] In some embodiments, the CCS assembly further includes a bump, the base plate including a side around the opening, the bump being connected to the side of the base plate facing the battery module and to the side.

[0014] In some embodiments, the base plate is further provided with a plurality of pressure relief ports and a plurality of mounting ports, wherein the pressure relief ports are disposed relative to the pressure relief valve of the battery module;

[0015] The CCS component also includes multiple connection bars, each of which is installed in one of the mounting ports. The multiple connection bars are used to connect to the battery module. Each mounting port and each pressure relief port are spaced apart. The receiving portion is disposed between one of the pressure relief ports and one of the mounting ports.

[0016] In some embodiments, the base further includes a boss that protrudes away from the battery module and surrounds each of the pressure relief ports. A portion of the boss has a notch on the side near the mounting port, and the receiving portion is at least partially located in the notch.

[0017] In some embodiments, each of the connecting bars is provided with a positioning element, and the CCS assembly further includes a plurality of voltage acquisition elements, each of the voltage acquisition elements being connected to one of the connecting bars, the positioning element being located on the side of the voltage acquisition element away from the receiving portion, and the distance between the voltage acquisition element and the positioning element being between 2 mm and 3 mm.

[0018] Secondly, this application provides a battery pack, the battery pack comprising:

[0019] The CCS component as described above;

[0020] A battery module, wherein the CCS component is connected to the battery module.

[0021] Thirdly, this application provides an electrical device including the battery pack as described above.

[0022] The beneficial effects of the embodiments of this application are as follows:

[0023] In the embodiments of this application, the receiving portion protrudes from the side opposite to the battery, and a receiving groove communicating with the opening is formed on the side facing the bottom plate opening. The temperature sensing element can be placed in the receiving groove, and at least partially exposed through the opening to detect the temperature of the battery module. Compared with the prior art, the receiving portion can protect the temperature sensor, prevent large displacement of the temperature sensor, avoid the temperature sensor from falling off due to external environmental impact during use, improve the accuracy of temperature data monitoring, and ensure battery safety. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the CCS component provided in the embodiments of this application. Figure 1 ;

[0026] Figure 2 yes Figure 1 A magnified schematic diagram of part A of the CCS component shown;

[0027] Figure 3 This is a schematic diagram of the structure of the CCS component provided in the embodiments of this application. Figure 2 ;

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of part B of the CCS component shown;

[0029] Figure 5 This is a top view of the CCS component provided in an embodiment of this application;

[0030] Figure 6 yes Figure 3 A magnified schematic diagram of a portion C of the CCS component shown.

[0031] Figure label:

[0032] 100. CCS components;

[0033] 10. Base; 101. Pressure relief port; 102. Mounting port; 11. Base plate; 110. Opening; 12. Receiving part; 120. Receiving groove; 121. Side plate; 122. Top plate; 1221. Through hole; 123. End plate; 124. Wiring port; 125. Protrusion;

[0034] 20. Temperature sensing components;

[0035] 30. Connecting wire;

[0036] 40. Limiting components;

[0037] 50. Connecting bar; 51. Serial bar; 510. Positioning element; 52. First crossover bar; 53. Second crossover bar;

[0038] 60. Voltage acquisition device;

[0039] 80. convexity; 81. notch. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0041] Please refer to Figures 1-2 , Figure 1 This is a schematic diagram of the structure of the CCS component provided in the embodiments of this application. Figure 1 , Figure 2 yes Figure 1 The diagram shows an enlarged view of a portion A of the CCS component. This application provides a CCS component 100. The CCS (Cell Contacting System) component includes a base 10 and a temperature sensing element 20. The base 10 is used to connect a battery module. The base 10 includes a bottom plate 11 and a receiving portion 12. The bottom plate 11 has an opening 110. The receiving portion 12 is connected to the bottom plate 11 and protrudes away from the battery. The receiving portion 12 is at least partially disposed opposite to the opening 110. The receiving portion 12 has a receiving groove 120 communicating with the opening 110 on the side facing the opening 110. The temperature sensing element 20 is disposed within the receiving groove 120 and close to the battery module. The temperature sensing element 20 is at least partially exposed outside the opening 110 and is used to detect the temperature of the battery module.

[0042] In this application, the receiving portion 12 protrudes from the side opposite to the battery module, and a receiving groove 120 communicating with the opening 110 is formed on the side facing the opening 110. The temperature sensing element 20 can be placed in the receiving groove 120, and at least partially exposed through the opening 110 to detect the temperature of the battery module. Compared with the prior art, the receiving portion 12 can protect the temperature sensor, prevent large displacement of the temperature sensor, avoid the temperature sensor from falling off due to external environmental impact during use, improve the accuracy of temperature data monitoring, and ensure battery safety.

[0043] In some examples, the temperature sensing element 20 is an NTC (Negative Temperature Coefficient thermistor), an electronic component whose resistance decreases as temperature increases. It is widely used in applications such as temperature measurement and temperature compensation. It has good temperature sensitivity; its resistance decreases as temperature rises, enabling it to respond quickly to temperature changes and making it suitable for real-time temperature monitoring.

[0044] In some examples, the base 10 is a thermoformed component, such as polypropylene, polystyrene, or polyethylene. The thermoformed component can use relatively thin plastic materials while maintaining sufficient strength and rigidity, which helps reduce the overall weight of the battery module. Furthermore, the equipment and mold costs for thermoforming are relatively low, and the process is relatively simple, which is beneficial for large-scale industrial production.

[0045] In some embodiments, the accommodating portion 12 includes a top plate 122 and two opposing side plates 121. The two side plates 121 are spaced apart and protrude from the bottom plate 11 on the side away from the battery module. The temperature sensing element 20 is located between the two side plates 121. The top plate 122 is located on the side of the temperature sensing element 20 away from the battery, and one of the side plates 121 is connected to each opposite side of the top plate 122. It is understood that the opposing side plates 121 can restrict the displacement of the temperature sensing element 20 in a direction parallel to the bottom plate 11, and the top plate 122 can restrict the displacement of the temperature sensing element 20 in a direction perpendicular to the bottom plate 11. The side plates 121 and the top plate 122 can restrict the displacement of the temperature sensing element 20 from different directions.

[0046] In some embodiments, the receiving portion 12 further includes an end plate 123, which protrudes from the bottom plate 11 on the side away from the battery and is connected between the two side plates 121. The end of the end plate 123 away from the battery module is connected to the top plate 122. A wire through hole 124 is formed between the ends of the two side plates 121 away from the end plate 123. The CCS assembly 100 also includes a connecting wire 30, which passes through the wire through hole 124 and is connected to the temperature detection element 20.

[0047] Please refer to Figures 3-4 , Figure 3 This is a schematic diagram of the structure of the CCS component provided in the embodiments of this application. Figure 2 , Figure 4 yes Figure 3 The diagram shows an enlarged view of a portion B of the CCS component. In some embodiments, the accommodating portion 12 exposes a portion of the opening 110, which communicates with the mounting port 102. The connecting wire 30 passes through the exposed portion of the opening 110 and the wiring port 124. Specifically, the accommodating groove 120 includes a slot facing the battery, and the opening 110 is larger than the slot. The larger opening 110 facilitates the passage of the connecting wire 30. The connecting wire 30 passes from the side away from the battery towards the battery module side and enters the accommodating groove 120 through the wiring port 124.

[0048] In some embodiments, the CCS assembly 100 further includes a limiting member 40, which is mounted on the base plate 11, and the connecting wire 30 is snapped into the limiting member 40. Specifically, the CCS assembly 100 includes multiple connecting wires 30, which are integrated into a wire harness. The wire harness is located on the side of the base plate 11 opposite to the battery module. Some of the connecting wires 30 are connected to the temperature sensing element 20 and extend toward the receiving portion 12.

[0049] In some examples, the limiting member 7040 can be an elastic structure. The limiting member 40 is mounted on the base plate 11 and can elastically deform in a direction away from the base plate 11. One end of the limiting member 40 is connected to the base plate 11, and the other end is a movable end. The limiting member 40 forms an arc-shaped limiting groove. When the wire harness passes through the limiting groove, the limiting member 40 elastically deforms due to the thickness of the wire harness or displacement. Within the deformation range, the limiting member 40 can still maintain the restriction on the wire harness, thereby reducing the difficulty of wire harness assembly operations and improving the yield rate.

[0050] In some examples, the limiting member 40 is a mounting strap. The mounting strap is arched and fixed to the base plate 11, and cooperates with the base plate 11 to form a limiting hole. The wire harness can pass through the limiting hole so that the cable tie can fix the connecting wire 30. The mounting strap can be a tie, cable tie, etc. Those skilled in the art can set the thickness, length, etc. of the mounting strap according to actual needs. Taking the cable tie as an example, the cable tie has a tying hole. After the wire harness passes through the limiting hole, the cable tie is tightened in the tying hole.

[0051] In some embodiments, the top plate 122 is provided with a through hole 1221, which can be a pressure relief hole. When conditions such as overcharging, short circuit, or excessive temperature occur inside the battery, gas may be generated, causing the internal pressure of the battery to increase rapidly. The pressure relief hole of the accommodating part 12 can release excessive pressure and prevent the battery from exploding or rupturing due to the accumulation of internal gas.

[0052] In some embodiments, the CCS assembly 100 further includes a protrusion 125, and the base plate 11 includes a side surrounding the opening 110. The protrusion 125 is connected to the side of the base plate 11 facing the battery module and to the side. Specifically, the protrusion 125 covers the periphery of the opening 110 and protrudes towards the battery module. The protrusion 125 can provide a certain limiting effect on the temperature sensing element 20.

[0053] Please refer to Figures 5-6 , Figure 5 This is a top view of the CCS component provided in an embodiment of this application. Figure 6 yes Figure 3 The diagram shows an enlarged view of a portion C of the CCS component. In some embodiments, the base plate 11 is further provided with a plurality of pressure relief ports 101 and a plurality of mounting ports 102. The pressure relief ports 101 are configured relative to the pressure relief valve of the battery. When the battery module temperature is too high, the pressure relief valve will release the excessive pressure. The plurality of pressure relief ports 101 are directed toward the pressure relief valve of the battery module to prevent the battery from exploding or rupturing due to the accumulation of internal gas.

[0054] The CCS component 100 also includes multiple connecting strips 50, each of which is mounted in a mounting port 102. The multiple connecting strips 50 are used to connect the battery module; for example, the connecting strips 50 can be welded to fix the battery module. Each mounting port 102 and each pressure relief port 101 are spaced apart, and a receiving portion 12 is disposed between one pressure relief port 101 and one mounting port 102. It is understood that when the battery pressure relief valve opens, a large impact force is generated, causing the temperature sensing element 20 to shake violently or be blown away by gas, resulting in temperature data acquisition failure. In this application, the temperature sensing element 20 is located within the receiving portion 12, which serves as a limit and protection mechanism, minimizing the shaking or impact on the temperature sensor near the pressure relief port 101. This not only ensures the accuracy of temperature acquisition but also prevents the temperature sensing element 20 from being easily damaged by thermal shock.

[0055] In some examples, the base plate 11 has a groove on the side opposite to the battery module, the groove being located between a mounting port 102 and a pressure relief port 101, and the receiving portion 12 being located in the groove.

[0056] In some embodiments, the base 10 further includes a boss 80 that protrudes away from the battery module and surrounds each of the pressure relief ports 101. A portion of the boss 80 has a notch 81 on the side near the mounting port 102, and the receiving portion 12 is at least partially provided in the notch 81.

[0057] Specifically, multiple pressure relief ports 101 penetrate the base plate 11, and bosses 80 surround the pressure relief ports 101 to form a pressure relief channel connecting the pressure relief ports 101. The bosses 80 have a notch 81 on the side near the mounting port 102, so that the notch 81 can avoid the receiving part 12, allowing the receiving part 12 to be set close to the pressure relief port 101.

[0058] In some embodiments, the connecting bar 50 is provided with a positioning member 510, and the CCS assembly 100 further includes a voltage acquisition member 60, which is connected to the connecting bar 50. The positioning member 510 is located on the side of the voltage acquisition member 60 away from the receiving portion 12, and the distance between the voltage acquisition member 60 and the positioning member 510 is between 2 mm and 3 mm.

[0059] The length of the positioning component 510 can be between 8mm and 10mm, such as 8mm, 8.2mm, 8.5mm, 9mm, 9.2mm, 9.5mm, 10mm, etc., and the distance between the voltage acquisition component 60 and the positioning component 510 can be 2mm, 2.5mm, 3mm, 3.5mm, 4.5mm, 5mm, etc.

[0060] Specifically, the connecting busbar 50 can be a copper busbar, an aluminum busbar, a composite copper-aluminum busbar, etc. The connecting busbar 50 includes multiple series busbars 51. The battery module includes multiple batteries, and the multiple batteries form multiple battery columns. Each of the series busbars 51 is installed in a mounting port 102. Each series busbar 51 connects two adjacent batteries in the battery column. Multiple voltage acquisition devices 60 correspond one-to-one with multiple series busbars 51. Each voltage acquisition device 60 is connected to the corresponding series busbar 51.

[0061] In some examples, a receiving portion 12 is provided for placing the temperature sensing element 20 every 9-10 serial rows 51. This application does not limit the specific value of the interval.

[0062] In some examples, the connecting strip 50 further includes a first bridging strip 52 and a second bridging strip 53. The first bridging strip 52 and multiple serial connecting strips 51 are arranged in the same direction. It is understood that the length of the CCS component 100 is affected by production. The first bridging strip 52 can connect multiple shorter CCS components 100, increasing the length of the CCS component 100, so that different CCS components 100 form an integrated structure. The second bridging strip 53 and multiple serial connecting strips 51 are arranged perpendicular to each other. The second bridging strip 53 is used to connect multiple CCS components 100 arranged in parallel.

[0063] This application also provides a battery pack, which includes a CCS assembly 100 as described above for the battery module, with a connecting strip 50 of the CCS assembly 100 connected to the battery module. By installing the CCS assembly 100 as described above, abnormal temperature detection caused by the temperature sensing element 20 falling off can be avoided, thus improving the stability of the battery pack. The battery pack includes a battery module, which includes multiple batteries. The batteries can be primary batteries, secondary batteries, lithium-sulfur batteries, sodium-ion batteries, or magnesium-ion batteries, etc. The batteries can be cylindrical, flat, cuboid, or other shapes, etc., and are not limited thereto in this application.

[0064] This application also provides an electrical device, which includes a battery pack as described above, used to provide electrical energy to the device. The electrical device can be an electric vehicle, power tool, electric bicycle, energy storage system, drone, mobile device, etc. By incorporating a battery pack, the safety of the electrical device can be ensured, and its service life can be extended.

[0065] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A CCS component for connecting a battery module, characterized in that, The CCS component includes: A base for connecting the battery module, the base including a bottom plate and a receiving portion, the bottom plate having an opening, the receiving portion being connected to the bottom plate and protruding to a side away from the battery module, the receiving portion being at least partially disposed opposite to the opening, and the receiving portion having a receiving groove communicating with the opening on the side facing the opening; A temperature sensing element is disposed within the receiving groove and positioned close to the battery module. The temperature sensing element is at least partially exposed through the opening and is used to detect the temperature of the battery module.

2. The CCS component according to claim 1, characterized in that, The accommodating part includes a top plate and two side plates arranged opposite each other. The two side plates are spaced apart and protrude from the bottom plate on the side away from the battery module. The temperature detection element is located between the two side plates. The top plate is located on the side of the temperature detection element away from the battery module, and one of the side plates is connected to each of the opposite sides of the top plate.

3. The CCS component according to claim 2, characterized in that, The accommodating portion further includes an end plate, which protrudes from the bottom plate on the side away from the battery module and is connected between the two side plates. The end of the end plate away from the battery module is connected to the top plate, and a wire through hole is formed between the ends of the two side plates away from the end plate. The CCS assembly also includes a connecting wire that passes through the wire inlet and is connected to the temperature sensing element.

4. The CCS component according to claim 3, characterized in that, The accommodating portion exposes the opening, and the exposed portion of the opening communicates with the threading port. The connecting wire passes through the exposed portion of the opening and the threading port.

5. The CCS component according to claim 3, characterized in that, The CCS component also includes a limiting member, which is installed on the base plate, and the connecting wire is snapped into the limiting member.

6. The CCS component according to claim 2, characterized in that, The top plate has through holes.

7. The CCS component according to any one of claims 1-6, characterized in that, The CCS assembly also includes a bump, and the base plate includes a side around the opening. The bump is connected to the side of the base plate facing the battery module and to the side.

8. The CCS component according to any one of claims 1-6, characterized in that, The base plate is also provided with multiple pressure relief ports and multiple mounting ports, and the pressure relief ports are positioned relative to the pressure relief valve of the battery module. The CCS component also includes multiple connection bars, each of which is installed in one of the mounting ports. The multiple connection bars are used to connect to the battery module. Each mounting port and each pressure relief port are spaced apart. The receiving portion is disposed between one of the pressure relief ports and one of the mounting ports.

9. The CCS component according to claim 8, characterized in that, The base also includes a boss that protrudes away from the battery module and surrounds each of the pressure relief ports. Some of the bosses have a notch on the side near the mounting port, and the receiving portion is at least partially located in the notch.

10. The CCS component according to claim 8, characterized in that, Each of the connecting bars is provided with a positioning element. The CCS assembly also includes multiple voltage acquisition elements. Each voltage acquisition element is connected to one of the connecting bars. The positioning element is located on the side of the voltage acquisition element away from the receiving part. The distance between the voltage acquisition element and the positioning element is between 2mm and 3mm.

11. A battery pack, characterized in that, include: The CCS component as described in any one of claims 1-10; A battery module, wherein the CCS component is connected to the battery module.

12. An electrical appliance, characterized in that, Includes the battery pack as described in claim 11.

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