Connector and energy storage system

Abstract

The utility model discloses a connector and an energy storage system. The connector comprises a connecting terminal; and the temperature control assembly comprises a temperature sensor and a temperature control switch, the temperature sensor is suitable for detecting the temperature of the connecting terminal, and the temperature control switch is suitable for controlling the connection and disconnection of the connecting terminal. According to the all-in-one connector, the temperature sensor and the temperature control switch are arranged, the temperature sensor can detect the temperature of the connecting terminal, the temperature control switch can control the connection and disconnection of the connecting terminal, when the detected temperature exceeds a preset value, a circuit can be disconnected, the safety of a main circuit is guaranteed, and meanwhile the temperature sensor and the temperature control switch are arranged, so that the safety of the main circuit is guaranteed. The unicity of circuit protection is avoided, the protection performance of the connector can be improved, and the effectiveness and reliability of circuit protection can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, in particular to a connector and an energy storage system. Background Art

[0002] In the related art, based on the consideration of the battery cell side, only the shunt is arranged in the main circuit under the condition of large current, and the detection of current may fail to timely discover some dangerous situations, such as abnormal temperature rise caused by poor contact. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a connector that can ensure the safety of the overall circuit, avoid the singularity of circuit protection, improve the protection performance of the connector, and improve the effectiveness and reliability of circuit protection.

[0004] The utility model further proposes an energy storage system.

[0005] The connector according to the utility model comprises: a connecting terminal; a temperature control component, wherein the temperature control component comprises: a temperature sensor and a temperature control switch, wherein the temperature sensor is suitable for detecting the temperature of the connecting terminal, and the temperature control switch is suitable for controlling the on and off of the connecting terminal.

[0006] According to the connector of the utility model, in the multi-in-one connector, by providing a temperature sensor and a temperature-controlled switch, the temperature sensor can detect the temperature of the connecting terminal, and the temperature-controlled switch can control the on and off of the connecting terminal. When the detected temperature exceeds a preset value, the circuit can be disconnected to ensure the safety of the overall circuit. In addition, the temperature sensor and the temperature-controlled switch are provided at the same time to avoid the singleness of circuit protection, which can improve the protection performance of the connector, thereby further improving the effectiveness and reliability of circuit protection.

[0007] In some examples of the present invention, the temperature control component is arranged on the connecting terminal, and the connecting terminal includes: a positive terminal and a negative terminal, at least one of the temperature sensor and the temperature control switch is arranged on the positive terminal; and / or at least one of the temperature sensor and the temperature control switch is arranged on the negative terminal.

[0008] In some examples of the present invention, the temperature sensor and the temperature-controlled switch are disposed on the positive terminal, and the temperature sensor and the temperature-controlled switch are disposed on the negative terminal.

[0009] In some examples of the present invention, the temperature sensor and the temperature-controlled switch are arranged at intervals in the circumferential direction of the positive terminal, and / or the temperature sensor and the temperature-controlled switch are arranged at intervals in the circumferential direction of the negative terminal.

[0010] In some examples of the present invention, there are multiple temperature sensors and multiple temperature-controlled switches, and the multiple temperature sensors are spaced apart in the circumferential direction of the positive terminal, and / or the multiple temperature-controlled switches are spaced apart in the circumferential direction of the positive terminal; the multiple temperature sensors are spaced apart in the circumferential direction of the negative terminal, and / or the multiple temperature-controlled switches are spaced apart in the circumferential direction of the negative terminal.

[0011] In some examples of the present invention, the temperature control switch is a resistive temperature control switch.

[0012] In some examples of the present invention, the connection terminal further includes: a grounding terminal, and the grounding terminal is used for grounding.

[0013] In some examples of the present invention, the connection terminal further includes: a communication terminal, and the communication terminal is used for signal transmission.

[0014] The energy storage system according to the utility model comprises: a box; a controller, wherein the controller is stacked on the box; and the connector mentioned above, wherein the connector is electrically connected between two adjacent boxes, or the connector is electrically connected between the box and the controller.

[0015] In some examples of the present invention, a connection port is provided on the box, the connector is electrically connected to the connection port, a battery and a battery information collector are provided in the box, and the battery and the battery information collector are electrically connected to the connection port respectively.

[0016] In some examples of the present invention, the energy storage system further includes: a controller and a contactor, the contactor is electrically connected to the controller, the temperature sensor is electrically connected to the controller; and / or the temperature control switch is electrically connected to the contactor.

[0017] In some examples of the present invention, the controller is one of a battery management system, an energy management system, and a battery control unit.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic structural diagram of a connector according to a first angle of an embodiment of the utility model;

[0021] Figure 2 is a schematic structural diagram of a connector according to a second angle of an embodiment of the utility model;

[0022] Figure 3 It is a connection diagram of an energy storage system according to another embodiment of the utility model.

[0023] Reference numerals:

[0024] 1. Connector;

[0025] 10. Connecting terminal; 11. Positive terminal; 12. Negative terminal; 13. Grounding terminal; 20. Temperature control component; 21. Temperature sensor; 22. Temperature control switch; 2. Energy storage system; 30. Controller; 40. Contactor. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0027] Reference below Figure 1-Figure 3 A connector 1 according to an embodiment of the present invention is described. The connector 1 may be an all-in-one connector 1 .

[0028] like Figure 1 and Figure 2 As shown, the connector 1 according to the embodiment of the utility model includes: a connection terminal 10 and a temperature control component 20. The connection terminal 10 mainly plays a connecting role and can transmit power and signals. The temperature control component 20 can detect the temperature in the circuit where the connector 1 is located, and when the temperature in the circuit exceeds a preset value, the circuit can be disconnected to ensure the safety of the total circuit.

[0029] like Figure 1-Figure 3 As shown, the temperature control component 20 includes: a temperature sensor 21 and a temperature control switch 22. The temperature sensor 21 is suitable for detecting the temperature of the connection terminal 10, and the temperature control switch 22 is suitable for controlling the connection and disconnection of the connection terminal 10. The temperature sensor 21 can detect the temperature of the connection terminal 10. When the temperature of the connection terminal 10 exceeds a preset value, the temperature sensor 21 can transmit information to the controller 30, and the controller 30 controls the disconnection of the circuit. The temperature control switch 22 can control the disconnection. When the temperature of the connection terminal 10 exceeds the preset value, the connection terminal 10 can directly disconnect the circuit according to its own physical properties without relying on the controller 30.

[0030] The temperature control switch 22 mainly refers to a series of automatic control elements that undergo physical deformation inside the switch according to the temperature change of the working environment, thereby producing certain special effects and generating a conduction or disconnection action.

[0031] Therefore, in the multi-in-one connector 1, by setting the temperature sensor 21 and the temperature control switch 22, the temperature sensor 21 can detect the temperature of the connecting terminal 10, and the temperature control switch 22 can control the on and off of the connecting terminal 10. When the detected temperature exceeds the preset value, the circuit can be disconnected to ensure the safety of the overall circuit. In addition, the temperature sensor 21 and the temperature control switch 22 are set at the same time to avoid the singleness of circuit protection, which can improve the protection performance of the connector 1, thereby further improving the effectiveness and reliability of circuit protection.

[0032] Specifically, Figure 1 and Figure 2 As shown, the temperature control component 20 is arranged on the connection terminal 10, and the connection terminal 10 includes: a positive terminal 11 and a negative terminal 12, at least one of the temperature sensor 21 and the temperature control switch 22 is arranged on the positive terminal 11, and / or at least one of the temperature sensor 21 and the temperature control switch 22 is arranged on the negative terminal 12. That is to say, the positive terminal 11 can be provided with one of the temperature sensor 21 and the temperature control switch 22, and the positive terminal 11 can also be provided with both the temperature sensor 21 and the temperature control switch 22, and / or the negative terminal 12 can be provided with one of the temperature sensor 21 and the temperature control switch 22, and the negative terminal 12 can also be provided with both the temperature sensor 21 and the temperature control switch 22, so as to meet the needs of targeted detection and flexible configuration, for example: in a battery box without a contactor 40, the temperature control switch 22 may not be carried.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the positive terminal 11 is provided with a temperature sensor 21 and a temperature control switch 22, and the negative terminal 12 is provided with a temperature sensor 21 and a temperature control switch 22. Preferably, the positive terminal 11 is provided with a temperature sensor 21 and a temperature control switch 22, and the negative terminal 12 is also provided with a temperature sensor 21 and a temperature control switch 22, so that double protection can be provided on the connection of the positive terminal 11, and double protection can also be provided on the connection of the negative terminal 12, thereby improving the overall protection performance of the connector 1.

[0034] According to an optional embodiment of the present utility model, Figure 1 and Figure 2As shown, the temperature sensor 21 and the temperature control switch 22 are arranged at intervals in the circumferential direction of the positive terminal 11, and / or the temperature sensor 21 and the temperature control switch 22 are arranged at intervals in the circumferential direction of the negative terminal 12. The temperature sensor 21 and the temperature control switch 22 are arranged at intervals in the circumferential direction of the positive terminal 11, which is convenient for arrangement, and the temperature sensor 21 and the temperature control switch 22 can be separated in the circumferential direction of the positive terminal 11, thereby avoiding the temperature sensor 21 and the temperature control switch 22 from interfering with each other on the positive terminal 11, affecting the normal operation of the temperature sensor 21 and the temperature control switch 22. Similarly, the temperature sensor 21 and the temperature control switch 22 are arranged at intervals in the circumferential direction of the negative terminal 12, which is convenient for arrangement, and the temperature sensor 21 and the temperature control switch 22 can be separated in the circumferential direction of the negative terminal 12, thereby avoiding the temperature sensor 21 and the temperature control switch 22 from interfering with each other on the negative terminal 12, affecting the normal operation of the temperature sensor 21 and the temperature control switch 22.

[0035] In addition, there are multiple temperature sensors 21 and multiple temperature control switches 22, multiple temperature sensors 21 are arranged at intervals in the circumferential direction of the positive terminal 11, and / or multiple temperature control switches 22 are arranged at intervals in the circumferential direction of the positive terminal 11, multiple temperature sensors 21 are arranged at intervals in the circumferential direction of the negative terminal 12, and / or multiple temperature control switches 22 are arranged at intervals in the circumferential direction of the negative terminal 12. Of course, there are multiple temperature sensors 21 and multiple temperature control switches 22. When one of the temperature sensors 21 or the temperature control switch 22 fails or is damaged, the other temperature sensors 21 or the temperature control switch 22 can still play a role in protecting the circuit, thereby improving the reliability of the circuit protection of the connector 1. Moreover, the multiple temperature sensors 21 and the multiple temperature control switches 22 are arranged at intervals in the circumferential direction of the positive terminal 11 and the negative terminal 12, so as to avoid interference between the multiple temperature sensors 21 and the multiple temperature control switches 22, which may affect the normal operation of the temperature sensors 21 and the temperature control switches 22.

[0036] The temperature control switch 22 is a resistive temperature control switch 22. It should be noted that the resistive temperature control switch 22 is mainly measured by a resistance temperature sensing method, and generally uses platinum wire, copper wire, tungsten wire and thermistor as temperature measuring resistors. These resistors have their own advantages and disadvantages. The resistive temperature control switch 22 has the advantages of high stability and small size.

[0037] In addition, if Figure 1 and Figure 2As shown, the connection terminal 10 also includes: a grounding terminal 13, which is used for grounding. The grounding terminal 13 can be used for grounding, and the charge generated during the electrostatic discharge process of the energy storage system 2 can be effectively guided to the ground through the grounding terminal 13, thereby preventing the energy storage system 2 from being damaged by strong charges. Of course, the connection terminal 10 can also include: a communication terminal, which can be used for signal transmission.

[0038] The energy storage system 2 according to the embodiment of the utility model comprises: a box, a controller 30 and the connector 1 described in the above embodiment, the controller 30 is stacked on the box, the connector 1 is electrically connected between two adjacent boxes, or the connector 1 is electrically connected between the box and the controller 30. For example: the box can be a first box and a second box, the first box and the second box are stacked, the first box and the second box can be battery boxes, as long as the connector 1 can play the role of electrical connection, the connector 1 is electrically connected between the first box and the second box, so that the first box and the second box can be connected in series or in parallel, so that the storage capacity of the energy storage system 2 can be improved, the controller 30 can play a control role, after the controller 30 is stacked on the box, the connector 1 can also be electrically connected between the box and the controller 30, so that the controller 30 can control the box through the connector 1, so that the signal transmission and control of the battery and other structural parts in the box can be performed.

[0039] In summary, the all-in-one connector 1 is a structure of one wire and multiple connection terminals 10, which can connect positive and negative electrodes, communication and ground wires.

[0040] The box body is provided with a connection port, the connector 1 is electrically connected to the connection port, the box body is provided with a battery and a battery information collector, and the battery and the battery information collector are electrically connected to the connection port respectively. The box body is provided with a connection port, which is a connection end. The battery and the battery information collector are electrically connected to the connection port respectively, and then the connection port is electrically connected to the connector 1, so that the power transmission and signal transmission can be played.

[0041] Alternatively, if Figure 3As shown, the energy storage system 2 also includes: a contactor 40, the contactor 40 is electrically connected to the controller 30, the temperature sensor 21 is electrically connected to the controller 30, and / or the temperature control switch 22 is electrically connected to the contactor 40. The contactor 40 can play the role of controlling the circuit to realize the on-off of the main circuit. The contactor 40 is electrically connected to the controller 30, and the controller 30 can control the contactor 40, and then control the on-off of the main circuit. The temperature sensor 21 is electrically connected to the controller 30. When the temperature sensor 21 detects that the temperature in the circuit exceeds the preset value, the temperature sensor 21 first transmits the temperature information to the controller 30, and the controller 30 analyzes the information, and then controls the contactor 40 to disconnect the main circuit, and the temperature control switch 22 is electrically connected to the contactor 40. When the circuit temperature is abnormal, the state of the temperature control switch 22 is changed, and the contactor 40 is disconnected, so that the main circuit is shut down. Among them, when the temperature control switch 22 is used for protection, it does not rely on the regulation of the controller 30, and can play a role in protecting the energy storage system 2 when the controller 30 fails.

[0042] It should be noted that the controller 30 is one of the battery management system, energy management system and battery control unit. Among them, the battery management system is mainly for intelligent management and maintenance of each battery unit, monitoring the status of the battery, preventing the battery from overcharging and over-discharging, so as to extend the service life of the battery. The energy management system mainly plays a vital role in the energy storage system 2. Through real-time monitoring, intelligent control and optimized scheduling, it improves energy utilization efficiency, reduces operating costs, and ensures the safety and reliability of the system. The battery control unit is mainly responsible for controlling the power battery system and exchanging information with other control units. The controller 30 is one of the battery management system, energy management system and battery control unit, all of which can play a good control role.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connector (1), characterized in that: include: Connecting terminal (10); A temperature control component (20), the temperature control component (20) comprising: a temperature sensor (21) and a temperature control switch (22), the temperature sensor (21) being suitable for detecting the temperature of the connection terminal (10), and the temperature control switch (22) being suitable for controlling the on and off of the connection terminal (10).

2. The connector (1) according to claim 1, characterized in that: The temperature control component (20) is arranged on the connection terminal (10), the connection terminal (10) comprises: a positive terminal (11) and a negative terminal (12), at least one of the temperature sensor (21) and the temperature control switch (22) is arranged on the positive terminal (11); and / or At least one of the temperature sensor (21) and the temperature control switch (22) is arranged on the negative terminal (12).

3. The connector (1) according to claim 2, characterized in that: The temperature sensor (21) and the temperature-controlled switch (22) are arranged on the positive terminal (11), and the temperature sensor (21) and the temperature-controlled switch (22) are arranged on the negative terminal (12).

4. The connector (1) according to claim 3, characterized in that: The temperature sensor (21) and the temperature-controlled switch (22) are arranged at intervals in the circumferential direction of the positive terminal (11), and / or the temperature sensor (21) and the temperature-controlled switch (22) are arranged at intervals in the circumferential direction of the negative terminal (12).

5. The connector (1) according to claim 3, characterized in that: There are a plurality of the temperature sensors (21) and the temperature control switches (22); the plurality of temperature sensors (21) are arranged at intervals in the circumferential direction of the positive terminal (11); and / or the plurality of temperature control switches (22) are arranged at intervals in the circumferential direction of the positive terminal (11); The plurality of temperature sensors (21) are arranged at intervals in the circumferential direction of the negative terminal (12), and / or the plurality of temperature-controlled switches (22) are arranged at intervals in the circumferential direction of the negative terminal (12).

6. The connector (1) according to claim 1, characterized in that: The temperature control switch (22) is a resistive temperature control switch (22).

7. The connector (1) according to claim 1, characterized in that: The connecting terminal (10) further comprises: a grounding terminal (13), wherein the grounding terminal (13) is used for grounding.

8. The connector (1) according to claim 1, characterized in that: The connecting terminal (10) further comprises: a communication terminal, wherein the communication terminal is used for signal transmission.

9. An energy storage system (2), characterized in that: include: Box; A controller (30), the controller (30) being stacked and arranged on the box; The connector (1) according to any one of claims 1 to 8, wherein the connector (1) is electrically connected between two adjacent boxes, or the connector (1) is electrically connected between the box and the controller (30).

10. The energy storage system (2) according to claim 9, characterized in that: The box body is provided with a connection port, the connector (1) is electrically connected to the connection port, the box body is provided with a battery and a battery information collector, the battery and the battery information collector are electrically connected to the connection port respectively.

11. The energy storage system (2) according to claim 9, characterized in that: Also includes: a contactor (40), the contactor (40) being electrically connected to the controller (30), and the temperature sensor (21) being electrically connected to the controller (30); and / or The temperature control switch (22) is electrically connected to the contactor (40).

12. The energy storage system (2) according to claim 9, characterized in that: The controller (30) is one of a battery management system, an energy management system and a battery control unit.

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