Sampling device, control device and terminal equipment

Abstract

The invention provides an acquisition device, a control device and terminal equipment, one end of a first acquisition component in the acquisition device is electrically connected with a battery pole, the other end is electrically connected with a circuit board, and the first acquisition component is used for acquiring current or voltage of a battery. The second acquisition component is fixedly connected with the first acquisition component, and the second acquisition component is used for acquiring the temperature of the battery. The acquisition device not only can acquire the voltage, but also can acquire the temperature, and the accuracy of monitoring the state of the battery is improved by monitoring the two parameters.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electrical engineering, and in particular to a sampling device, a control device, and a terminal device. Background Art

[0002] In recent years, with the rapid development of the new energy industry, the energy storage market has also exploded, and the requirements for energy storage battery systems have become increasingly higher. Safety is an important factor that cannot be ignored.

[0003] With the development of power electronics and the new energy market, lithium-ion batteries are gaining increasing market penetration in the battery sector. Lithium batteries are the core component of battery devices. Single-cell lithium-ion batteries have a low voltage, so to meet high-voltage power requirements, multiple cells must be connected in series. Series lithium-ion battery packs require a battery management system to implement a range of functions, including status monitoring, safety protection, and balancing management. A battery information collector monitors and collects battery voltage data in real time, transmits this data to the battery execution and sampling unit, and responds to commands from higher-level controllers to enable and disable battery balancing.

[0004] However, collecting voltage data alone is usually not enough to accurately assess the battery status. Accurately assessing the battery status to achieve precise control of the battery is an important issue. Summary of the Invention

[0005] This application provides a data acquisition device, a control device, and a terminal device that can acquire not only voltage but also temperature. By monitoring these two parameters, the accuracy of battery status monitoring is improved.

[0006] A first aspect of the present application provides a collection device, wherein the collection device includes a first collection component, one end of the first collection component is electrically connected to the battery pole, the other end of the first collection component is electrically connected to the circuit board, and the first collection component is used to collect the current or voltage of the battery; and a second collection component, the second collection component is fixedly connected to the first collection component, and the second collection component is used to collect the temperature of the battery.

[0007] In this application, a first collecting component in the data collection device is electrically connected to the battery terminal at one end and to the circuit board at the other end. The first collecting component is used to collect the battery's current or voltage. A second collecting component, fixedly connected to the first collecting component, collects the battery's temperature. The data collection device can collect not only voltage but also temperature. By monitoring both parameters, the accuracy of battery status monitoring is improved.

[0008] In a possible implementation manner of the first aspect of the present application, optionally, the first collecting component includes: a collecting portion, which is welded to the connecting piece of the battery, or the collecting portion is welded to the pole of the battery; and a connecting portion, which is welded to the circuit board, and the plane where the collecting portion is located is arranged at an angle to the plane where the connecting portion is located.

[0009] In a possible implementation of the first aspect of the present application, optionally, the first collecting component further includes:

[0010] The mounting portion is connected to the collecting portion and is suitable for installing the second collecting component.

[0011] In a possible implementation manner of the first aspect of the present application, optionally, an end portion of the mounting portion is connected to the collecting portion, and the mounting portion is arranged in a plane where the connecting portion is located.

[0012] In a possible implementation manner of the first aspect of the present application, optionally, the end portion of the collecting portion includes:

[0013] a first end portion, the first end portion being connected to the connecting portion, and

[0014] The second end portion is connected to the mounting portion, and a gap is provided between the first end portion and the second end portion.

[0015] In a possible implementation manner of the first aspect of the present application, optionally, the mounting portion includes:

[0016] The accommodating chamber is provided with a second collecting component, and the second collecting component collects the temperature of the battery cell by collecting the temperature of the collecting portion;

[0017] In a possible implementation of the first aspect of the present application, optionally, the collection device further includes:

[0018] Thermally conductive adhesive is filled in the accommodating cavity and is used to fix the second collecting component in the accommodating cavity.

[0019] In a possible implementation manner of the first aspect of the present application, optionally, the thermal conductivity of the thermally conductive adhesive is greater than or equal to 2.

[0020] In a possible implementation manner of the first aspect of the present application, optionally, the connecting portion includes:

[0021] A first plane, the first plane being suitable for connecting with the collecting portion; and

[0022] The second plane is suitable for connecting with the circuit board, and the first plane and the second plane are arranged at an angle.

[0023] In a possible implementation manner of the first aspect of the present application, optionally, the connecting portion further includes:

[0024] The third plane is arranged between the first plane and the second plane, and the third plane is arranged at an angle to the first plane and the second plane respectively.

[0025] In a possible implementation of the first aspect of the present application, optionally, the collection device further includes:

[0026] a wiring harness, one end of which is connected to the second collecting member; and

[0027] The connecting member has one end connected to the wire harness and the other end electrically connected to the circuit board.

[0028] In a possible implementation of the first aspect of the present application, optionally, the collection device further includes:

[0029] The bracket is fixedly connected to the connecting portion, and the connecting member is fixedly arranged on the bracket.

[0030] In a possible implementation manner of the first aspect of the present application, optionally, the wiring harness is wrapped with an insulating material.

[0031] In a possible implementation of the first aspect of the present application, optionally, the material of the first collecting member includes:

[0032] Nickel, copper and / or copper-aluminum alloys.

[0033] In a possible implementation of the first aspect of the present application, optionally, the second collecting component includes:

[0034] Negative temperature coefficient NTC thermistors and / or PTC thermistors

[0035] A second aspect of the present application provides a control device, the control device comprising:

[0036] The circuit board and the collection device are electrically connected;

[0037] The collection device is such as the collection device in the first aspect and any possible embodiment of the first aspect.

[0038] A third aspect of the present application provides a terminal device, the terminal device comprising:

[0039] A battery and a collection device as in the first aspect and any possible embodiment of the first aspect; or

[0040] A battery and a control device according to the second aspect.

[0041] In this application, a first collecting component in the data collection device is electrically connected to the battery terminal at one end and to the circuit board at the other end. The first collecting component is used to collect the battery's current or voltage. A second collecting component, fixedly connected to the first collecting component, collects the battery's temperature. The data collection device can collect not only voltage but also temperature. By monitoring both parameters, the accuracy of battery status monitoring is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of an embodiment of a collection device provided by the present application;

[0043] Figure 2 This is a schematic diagram of another embodiment of a collection device provided by the present application;

[0044] Figure 3 This is a schematic diagram of another embodiment of a collection device provided by the present application;

[0045] Figure 4 This is a schematic diagram of another embodiment of a collection device provided by the present application;

[0046] Figure 5 This is a schematic diagram of another embodiment of a collection device provided by the present application;

[0047] Description of reference numerals:

[0048] 1. First collecting component, 2. Second collecting component; 11. Collecting part; 12. Connecting part; 13. Mounting part; 111. First end; 112. Second end; 131. Accommodating cavity; 3. Thermal conductive adhesive; 121. First plane; 122. Second plane; 123. Third plane; 4. Wiring harness; 5. Connecting component; 6. Bracket; 7. Battery; 8. Connecting piece; 9. Circuit board. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the following describes the embodiments of this application in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, rather than all the embodiments. It is known to those skilled in the art that with the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0050] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or that are inherent to these processes, methods, products or devices. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The process steps that have been named or numbered can be changed in the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0051] “And / or” in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. Moreover, in the description of this application, unless otherwise specified, “multiple” means two or more than two. “At least one of the following items” or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0052] In recent years, with the rapid development of the new energy industry, the energy storage market has also exploded, and the requirements for energy storage battery systems have become increasingly higher. Safety is an important factor that cannot be ignored.

[0053] With the development of power electronics and the new energy market, lithium-ion batteries are gaining increasing market penetration in the battery sector. Lithium batteries are the core component of battery devices. Single-cell lithium-ion batteries have a low voltage, so to meet high-voltage power requirements, multiple cells must be connected in series. Series lithium-ion battery packs require a battery management system to implement a range of functions, including status monitoring, safety protection, and balancing management. A battery information collector monitors and collects battery voltage data in real time, transmits this data to the battery execution and sampling unit, and responds to commands from higher-level controllers to enable and disable battery balancing.

[0054] However, collecting voltage data alone is usually not enough to accurately assess the battery status. Accurately assessing the battery status to achieve precise control of the battery is an important issue.

[0055] In this application, a first collecting component in the data collection device is electrically connected to the battery terminal at one end and to the circuit board at the other end. The first collecting component is used to collect the battery's current or voltage. A second collecting component, fixedly connected to the first collecting component, collects the battery's temperature. The data collection device can collect not only voltage but also temperature. By monitoring both parameters, the accuracy of battery status monitoring is improved.

[0056] Figure 1 This is a schematic diagram of an embodiment of the collection device provided in this application.

[0057] against Figure 1 The collection device provided in this application includes: a first collection component 1, one end of the first collection component is electrically connected to the battery 7 terminal, and the other end of the first collection component 1 is electrically connected to the circuit board 9, and the first collection component 1 is used to collect the current or voltage of the battery 7; and a second collection component 2, the second collection component 2 is fixedly connected to the first collection component 1, and the second collection component 2 is used to collect the temperature of the battery 7.

[0058] In this application, a first collecting component 1 in the data collection device is electrically connected at one end to a battery terminal 7 and at the other end to a circuit board 9. The first collecting component 1 is used to collect the current or voltage of the battery 7. A second collecting component 2 is fixedly connected to the first collecting component 1 and collects the temperature of the battery 7. The data collection device can collect not only voltage but also temperature. By monitoring both parameters, the accuracy of battery status monitoring is improved.

[0059] Furthermore, if the voltage and temperature signals are integrated independently, the effect is still poor. Voltage sampling is performed using nickel sheets, while temperature sampling is performed by attaching a temperature sensor to the surface of the battery cell. However, since temperature sampling requires wiring, it is more suitable for acquisition with a small number of temperature sampling points. If a one-to-one voltage-temperature ratio is required, the wiring harness between the temperature sampling point and the sampling unit becomes tangled, which can easily interfere with other structures, resulting in poor device stability.

[0060] The acquisition device provided in the embodiment of the present application is different from the traditional connector-connected NTC. It directly integrates temperature sampling and voltage sampling, eliminating the need for temperature sensor design and installation, and compressing the temperature sampling and voltage sampling ports into the integrated design of the battery information collector, greatly saving corresponding processes and costs.

[0061] The data acquisition device provided in the embodiments of this application can also detect the temperature of individual battery cells, which is also of great significance to the reliability and safety of battery energy storage systems. This not only improves the stability of energy storage products, but also significantly reduces production costs and provides strong technical support and innovation impetus for the development of enterprises in the energy storage field.

[0062] In the embodiment of the present application, optionally, the material of the first collecting component 1 may be nickel, copper or copper-aluminum alloy, and the first collecting component 1 may also be other metals, which is not limited here.

[0063] In the embodiment of the present application, optionally, the second collecting component 2 may be an NTC, the second collecting component 2 may also be a PTC, or the second collecting component 2 may also be other types of temperature sensors, which are not specifically limited here.

[0064] In one possible embodiment of the present application, optionally, the first collecting component 1 includes: a collecting portion 11, the collecting portion 11 is welded to the connecting piece 8 of the battery 7, or the collecting portion 11 is welded to the pole of the battery; and a connecting portion 12, the connecting portion 12 is welded to the circuit board 9, and the plane where the collecting portion 11 is located is arranged at an angle to the plane where the connecting portion 12 is located.

[0065] In the embodiment of the present application, the first collection component has two regions, namely a collection portion 11 and a connection portion 12. The collection portion 11 is welded to the pole of the battery 7, or the collection portion 11 is welded to the connecting piece 8 of the battery, so that the collection portion 11 can collect the battery voltage or battery current. The connection portion 12 is welded to the circuit board 9 so that the first collection component can be electrically connected to the circuit board 9. The collection portion 11 transmits the collected signal to the circuit board 9 through the connection portion. The plane where the collection portion 11 is located is arranged at an angle to the plane where the connection portion 12 is located, which can further compress the space of the first collection component 1 and improve volume utilization.

[0066] In a possible implementation manner of the present application, optionally, the first collecting component 1 further includes:

[0067] The mounting portion 13 is connected to the collecting portion 11 , and the mounting portion 13 is suitable for mounting the second collecting component 2 .

[0068] In the embodiment of the present application, an installation portion 13 is provided in the area connected to the collection portion 11, and the installation portion 13 accommodates the second collection component 2. The second collection component 2 senses the temperature of the battery 7 by collecting the temperature of the collection portion in the first collection component 1, providing a possible implementation method.

[0069] Figure 2 A schematic diagram of an embodiment of a collection device provided in this application.

[0070] according to Figure 2In a possible implementation manner of the present application, optionally, an end portion of the mounting portion 13 is connected to the collecting portion 11 , and the mounting portion 13 is arranged in the plane where the connecting portion 12 is located.

[0071] In a possible embodiment of the present application, optionally, the first end portion 111 is connected to the connecting portion 12 , and the second end portion 112 is connected to the mounting portion 13 , and a gap is provided between the first end portion 111 and the second end portion 112 .

[0072] In the embodiment of this application, Figure 2 As shown, the end of the mounting portion 13 is connected to the collecting portion 11 so that the second collecting member 2 can collect the temperature of the collecting portion 11 in the first collecting member. The mounting portion 13 may not be arranged in the plane where the collecting portion 11 is located, and the mounting portion 13 is connected to the end of the collecting portion 11. This can prevent the position of the mounting portion 13 from interfering with the position of the collecting portion 11. The surface where the collecting portion 11 is located needs to be laser welded with the battery pole or the connecting piece. The mounting portion 13 is arranged at the edge, not in the plane where the collecting portion 11 is located, to prevent damage by the laser and increase safety.

[0073] In a possible implementation manner of the present application, optionally, the mounting portion 13 includes:

[0074] The accommodating cavity 131 is provided with a second collecting component 2, which collects the temperature of the battery 7 by collecting the temperature of the collecting part 11, and a thermal conductive glue 3 is filled in the accommodating cavity 131, and the thermal conductive glue 3 is used to fix the second collecting component 2 in the accommodating cavity 131.

[0075] In the embodiment of the present application, a heat-conducting fixing glue 3 is provided in the accommodating cavity 131, and the heat-conducting fixing glue 3 fixes the second collecting member 2 in the accommodating cavity 131. The heat-conducting fixing glue 3 can play a role in temperature transfer so that the second collecting member 2 can collect.

[0076] In the embodiment of the present application, optionally, the thermal conductivity of the thermal conductive adhesive 3 can be greater than 2, the thermal conductivity of the thermal conductive adhesive 3 can be greater than 3, and the thermal conductivity of the thermal conductive adhesive 3 can be selected according to needs and is not specifically limited here.

[0077] Figure 3 A schematic diagram of an embodiment of a collection device provided in this application.

[0078] according to Figure 3 In a possible embodiment of the present application, optionally, a first plane 121, the first plane 121 is suitable for connecting with the collection part 11; and a second plane 122, the second plane 122 is suitable for connecting with the circuit board 9, and the first plane 121 and the second plane 122 are set at an angle.

[0079] In the embodiment of the present application, the connection portion of the first collecting device is designed to be two planes, which can buffer the force received and effectively alleviate the problem of material breakage of the connection portion in some positions.

[0080] In a possible implementation manner of the present application, optionally, the connecting portion further includes:

[0081] The third plane 123 is disposed between the first plane 121 and the second plane 122 , and the third plane 123 is disposed at an angle to the first plane and the second plane respectively.

[0082] The connection part of the first acquisition device is designed into three planes, and the three planes are designed in an X shape, which can also buffer the force received, effectively alleviate the problem of connection material breakage in some positions, and provide a new implementation method.

[0083] In a possible implementation manner of the present application, optionally, the collection device further includes:

[0084] A wiring harness 4, one end of which is connected to the second collecting member; and

[0085] The connecting member 5 has one end connected to the wiring harness and the other end electrically connected to the circuit board.

[0086] In this embodiment, one end of the wiring harness 4 is connected to the connecting member 5, and the other end is connected to the second collecting member 2. This flexible connection reduces stress after welding the first collecting member 1 to the battery 7, preventing damage to the second collecting member 2 due to external stress. Furthermore, the wiring harness 4 can be wrapped with an insulating material to prevent short circuits.

[0087] In the embodiment of the present application, one end of the connecting member 5 is laser welded to the wire harness, and the other end is welded to the circuit board, thereby connecting the wire harness and the circuit board.

[0088] In a possible implementation manner of the present application, optionally, the collection device further includes:

[0089] The bracket 6 is fixedly connected to the connecting portion 12 , and the connecting member 5 is fixedly arranged on the bracket.

[0090] In the embodiment of the present application, the bracket 6 can fix the first collecting member 1 and the connecting member 5 together, which is convenient for furnace welding with the circuit board 9. Optionally, the bracket can be made of an insulating, heat-resistant and furnace-proof material.

[0091] Figure 4 A schematic diagram of another embodiment of the collection device provided in this application.

[0092] For example, the first collecting member is a nickel sheet, the second collecting member is an NTC, and the connecting member is an implant needle.

[0093] In the embodiment of the present application, the collection device may include: a nickel sheet, an NTC, a connecting component, a bracket, and a thermal conductive adhesive.

[0094] The nickel sheet is the voltage collection channel. One side is welded to the battery cell connection sheet and the other side is welded to the circuit board to complete the battery cell voltage collection. The connection relationship between the integrated sampling device and the battery module is as follows: Figure 4 The nickel sheet is designed in a "X" shape, which effectively reduces the problem of nickel sheet breakage caused by different positions. The material can be nickel or other conductive metals that can be welded, such as copper and aluminum alloys.

[0095] NTC, a temperature collection electronic device, is fixed in the nickel sheet reel by thermal conductive glue, and the other end is connected to the connecting component through a wiring harness to complete the battery cell temperature collection.

[0096] Thermally conductive fixing glue fixes the NTC in the reel and also plays a role in temperature transfer. It is necessary to use glue with a thermal conductivity greater than 2 and that can play a fixing role after cooling.

[0097] NTC wiring harness, flexible connection, reduces the stress problem after welding the nickel sheet and the battery core, and prevents the NTC from being damaged by external stress.

[0098] The connecting component is laser welded to the wiring harness at one end and to the circuit board at the other end, serving to connect the wiring harness and the circuit board. The wiring harness is wrapped with insulating material to prevent short circuits.

[0099] The bracket secures the nickel sheet to the NTC connection component, facilitating furnace soldering to the circuit board. Made of heat-resistant, furnace-proof material.

[0100] The nickel sheet is welded to the cell connector. Heat from the cell is transferred to the nickel sheet through the connector. The heat is then transferred to the NTC via the nickel sheet reel and the thermally conductive adhesive inside. The NTC then transmits the collected temperature to the circuit board for analysis and processing. While the NTC is located to the right of the nickel sheet in the figure, other locations are possible.

[0101] The transmission of the sampling signal is no different from that of conventional AFE and other sampling devices, and the circuit part can be used in common with conventional acquisition solutions.

[0102] The nickel sheet and glue have excellent thermal conductivity, ensuring that the NTC temperature acquisition error is within the required range. Unlike traditional nickel sheets that only perform voltage acquisition, this nickel sheet solution integrates both voltage and temperature acquisition functions. The design is simple and reliable, and it can achieve simultaneous acquisition of temperature and voltage for each battery cell.

[0103] In this embodiment, the novel integrated nickel-plate temperature acquisition solution, unlike connector-connected NTCs, integrates temperature and voltage sampling directly into the nickel-plate terminals, eliminating the need for temperature sensor design and installation. These ports are integrated into the integrated design of the battery information collector, significantly reducing the corresponding process and costs. The simplified single-cell temperature detection mode is also crucial for the reliability and safety of battery energy storage systems. This not only improves the stability of energy storage products but also significantly reduces production costs, providing strong technical support and innovation impetus for the development of enterprises in the energy storage field.

[0104] A second aspect of the present application provides a control device, the control device comprising:

[0105] The circuit board and the collection device are electrically connected;

[0106] The collection device is any one of the collection devices in the above embodiments.

[0107] A third aspect of the present application provides a terminal device, the terminal device comprising:

[0108] A battery and a collection device as described in the above embodiments; or

[0109] A battery and a control device as described in the above embodiments.

[0110] In this embodiment, the terminal equipment provided by this application may include energy storage containers used on the grid side, may include energy storage cabinets for industrial and commercial use, may include household energy storage equipment, may also include automobiles, drones, ships, robots, etc., and may also include other equipment, which are not specifically limited here.

[0111] In this application, a first collecting component in the data collection device is electrically connected to the battery terminal at one end and to the circuit board at the other end. The first collecting component is used to collect the battery's current or voltage. A second collecting component, fixedly connected to the first collecting component, collects the battery's temperature. The data collection device can collect not only voltage but also temperature. By monitoring both parameters, the accuracy of battery status monitoring is improved.

[0112] Furthermore, if the voltage and temperature signals are integrated independently, the effect is still poor. Voltage sampling is performed using nickel sheets, while temperature sampling is performed by attaching a temperature sensor to the surface of the battery cell. However, since temperature sampling requires wiring, it is more suitable for acquisition with a small number of temperature sampling points. If a one-to-one voltage-temperature ratio is required, the wiring harness between the temperature sampling point and the sampling unit becomes tangled, which can easily interfere with other structures, resulting in poor device stability.

[0113] The acquisition device provided in the embodiment of the present application is different from the traditional connector-connected NTC. It directly integrates temperature sampling and voltage sampling, eliminating the need for temperature sensor design and installation, and compressing the temperature sampling and voltage sampling ports into the integrated design of the battery information collector, greatly saving corresponding processes and costs.

[0114] The data acquisition device provided in the embodiments of this application can also detect the temperature of individual battery cells, which is also of great significance to the reliability and safety of battery energy storage systems. This not only improves the stability of energy storage products, but also significantly reduces production costs and provides strong technical support and innovation impetus for the development of enterprises in the energy storage field.

[0115] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0116] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

[0117] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the protection scope of the present application.

[0118] The battery device and energy storage system provided in the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core concept of the present application. At the same time, for those skilled in the art, based on the concept of the present application, there may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A collection device, characterized in that: include: a first collecting member, one end of which is electrically connected to the battery pole, the other end of which is electrically connected to the circuit board, and the first collecting member is used to collect the current or voltage of the battery; and A second collecting component is fixedly connected to the first collecting component, and is used to collect the temperature of the battery.

2. The collection device according to claim 1, characterized in that: The first collecting component includes: a collecting part, the collecting part being connected to the connecting piece of the battery by welding, or the collecting part being connected to the pole of the battery by welding; and A connecting portion is welded to the circuit board, and a plane where the collecting portion is located is arranged at an angle to a plane where the connecting portion is located.

3. The collection device according to claim 2, characterized in that: The first collecting component further includes: The mounting portion is connected to the collecting portion and is suitable for installing the second collecting component.

4. The collection device according to claim 3, characterized in that: The end of the mounting portion is connected to the collecting portion, and the mounting portion is arranged in the plane where the connecting portion is located.

5. The collection device according to claim 3, characterized in that: The end portion of the collecting portion includes: a first end portion connected to the connecting portion, and The second end portion is connected to the mounting portion, and a gap is provided between the first end portion and the second end portion.

6. The collection device according to any one of claims 3 to 5, characterized in that: The mounting portion includes: The accommodating chamber is provided with the second collecting component, and the second collecting component collects the temperature of the battery cell by collecting the temperature of the collecting portion.

7. The collection device according to claim 3 or 4, characterized in that: The collection device also includes: Thermally conductive adhesive is filled in the accommodating cavity, and is used to fix the second collecting component in the accommodating cavity.

8. The collection device according to claim 7, characterized in that: The thermal conductivity of the thermal conductive adhesive is greater than or equal to 2.

9. The collection device according to claim 3 or 4, characterized in that: The connecting portion includes: a first plane, the first plane being suitable for connecting with the collecting portion; and The second plane is suitable for connecting to a circuit board, and the first plane and the second plane are arranged at an angle.

10. The collection device according to claim 9, characterized in that: The connecting portion further includes: A third plane is provided between the first plane and the second plane, and the third plane is provided at an angle to the first plane and the second plane respectively.

11. The collection device according to any one of claims 3 to 10, characterized in that: The collection device also includes: a wiring harness, one end of which is connected to the second collecting member; and A connecting member has one end connected to the wire harness and the other end electrically connected to the circuit board.

12. The collection device according to any one of claims 11, characterized in that: The collection device also includes: The bracket is fixedly connected to the connecting portion, and the connecting member is fixedly arranged on the bracket.

13. The collection device according to claim 11 or 12, characterized in that: The wiring harness is wrapped with insulating material.

14. The collection device according to any one of claims 1 to 13, characterized in that: The materials of the first collecting member include: Nickel, copper and / or copper-aluminum alloys.

15. The collection device according to any one of claims 1 to 13, characterized in that: The second collecting component includes: Negative temperature coefficient NTC thermistors and / or PTC thermistors.

16. A control device, characterized in that: The control device comprises: A circuit board and a collection device, wherein the circuit board and the collection device are electrically connected; The collection device is the collection device according to any one of claims 1 to 15.

17. A terminal device, characterized in that: The terminal device includes: A battery and a collection device according to any one of claims 1 to 15; or A battery and a control device as claimed in claim 16.

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