Modularized cluster level control device of sodium ion battery and power supply equipment

Abstract

The utility model relates to a modularized cluster level control device of a sodium ion battery and power supply equipment. The modularized cluster-level control device of the sodium ion batteries comprises at least two switch control circuits, first ends of the switch control circuits are used for being electrically connected with the corresponding sodium ion batteries; the first end of the conversion circuit is connected with the second end of the switch control circuit, and the second end of the conversion circuit is used for being electrically connected with an energy storage converter; the cluster-level controller is respectively in communication connection with the switch control circuits and the conversion circuit, and the cluster-level controller is used for indicating one of the switch control circuits to be switched on and controlling the conversion circuit to work; and the first direct current output by the sodium ion battery corresponding to one switch control circuit is converted and then output to the energy storage converter.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery, more specifically, the utility model relates to a modularization cluster level control device and power supply equipment of sodium ion battery. BACKGROUND

[0002] With the rapid development of battery, sodium ion battery is widely used, it is not only low in manufacturing cost, and, higher safety. At present, in order to realize the charge-discharge of sodium ion battery, sodium ion battery can be charged and discharged through conversion circuit, but in some scenes, sodium ion battery can be used frequently, influence the service life of sodium ion battery. UTILITY MODEL CONTENTS

[0003] One object of the utility model is to provide a modularization cluster level control device and power supply equipment of sodium ion battery.

[0004] According to one aspect of the utility model, a modularization cluster level control device of sodium ion battery is provided, comprising:

[0005] At least two switch control circuits, the first end of the switch control circuit is used to be electrically connected with the corresponding sodium ion battery;

[0006] Conversion circuit, the first end of the conversion circuit is connected with the second end of the switch control circuit, and the second end of the conversion circuit is used to be electrically connected with energy storage converter; And

[0007] Cluster level controller, the cluster level controller is connected with the switch control circuit and the conversion circuit respectively, and the cluster level controller is used to indicate that one of the switch control circuit is turned on, and the conversion circuit is controlled to work, so that the first direct current of the sodium ion battery corresponding to one of the switch control circuit is converted and then output to the energy storage converter.

[0008] Optionally, the switch control circuit includes a control chip, a switching circuit and a signal transceiver module, the control chip is connected with the first end of the switching circuit, the second end of the switching circuit is used as the first end of the switch control circuit, the third end of the switching circuit is used as the second end of the switch control circuit, the control chip is electrically connected with the signal transceiver module, and the signal transceiver module is connected with the cluster level controller.

[0009] Optionally, the switching circuit is a boost circuit.

[0010] Optionally, the switch control circuits are multiple, and the signal transceiver modules of the switch control circuits are connected in communication through a CAN bus network, wherein one signal transceiver module of the switch control circuits is directly connected in communication with the cluster-level controller, and the signal transceivers of the remaining switch control circuits are indirectly connected in communication with the cluster-level controller through one of the switch control circuits.

[0011] Optionally, a direct-current buffer circuit is arranged between the switch control circuit and the conversion circuit.

[0012] And / or,

[0013] A direct-current buffer circuit is arranged between the conversion circuit and the energy storage converter.

[0014] Optionally, the direct-current buffer circuit comprises a first resistor, a second resistor and a first capacitor, a first end of the first capacitor is connected with a first end of the first resistor, a second end of the first resistor is connected with a first end of the second resistor, a second end of the first capacitor is connected with a positive connection end of the conversion circuit, and a second end of the second resistor is connected with a negative connection end of the conversion circuit.

[0015] Optionally, a filter circuit is arranged between the switch control circuit and the conversion circuit.

[0016] And / or,

[0017] A filter circuit is arranged between the conversion circuit and the energy storage converter.

[0018] Optionally, the conversion circuit comprises a first conversion circuit, an isolation circuit and a second conversion circuit, a first end of the first conversion circuit is taken as a first end of the conversion circuit, a second end of the first conversion circuit is connected with a first end of the isolation circuit, a second end of the isolation circuit is connected with a first end of the second conversion circuit, and a second end of the second conversion circuit is taken as a second end of the conversion circuit.

[0019] According to an aspect of the present application, a power supply device is provided, comprising:

[0020] The modular cluster-level control device of the sodium ion battery is the sodium ion battery's modular cluster-level control device of the first aspect.

[0021] Optionally, further comprising a plurality of sodium ion batteries, and the plurality of sodium ion batteries are electrically connected with the corresponding switch control circuits in the modular cluster-level control device of the sodium ion battery.

[0022] The technical effect of the utility model lies in that the modular cluster level control device of the sodium ion battery can control the corresponding sodium ion battery to charge and discharge for the energy storage converter through a switch control circuit, and the corresponding sodium ion battery of the remaining switch control circuit does not work to effectively cool down, which can improve the service life of the sodium ion battery under the premise of efficient charging and discharging of the energy storage converter.

[0023] Other features of the present application and their advantages will become apparent from the following detailed description of exemplary embodiments of the application with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0025] Figure 1 is a structure block diagram of the modular cluster level control device of the sodium ion battery in the embodiment of the application;

[0026] Figure 2 is a structure block diagram of the switch control circuit in the embodiment of the application;

[0027] Figure 3 is a circuit diagram of the direct current buffer circuit in the embodiment of the application. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0029] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the present application or its application or uses.

[0030] Techniques and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description if appropriate.

[0031] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0032] Note that like reference numerals and letters indicate like items in the accompanying drawings and, as such, once an item is defined in one drawing, that item is not discussed further in subsequent drawings.

[0033] Figure 1is a structural block diagram of a modular cluster-level control device of a sodium-ion battery according to an embodiment of the present application. As shown in Figure 1 The modular cluster-level control device of the sodium-ion battery comprises:

[0034] at least two switch control circuits 10, a first end of the switch control circuit 10 being configured to be electrically connected to a corresponding sodium-ion battery 200;

[0035] a conversion circuit 20, a first end of the conversion circuit 20 being connected to a second end of the switch control circuit 10, and a second end of the conversion circuit 20 being configured to be electrically connected to an energy storage converter 300; and

[0036] a cluster-level controller 30, the cluster-level controller 30 being communicatively connected to the switch control circuit 10 and the conversion circuit 20, respectively, the cluster-level controller 30 being configured to instruct one of the switch control circuits 10 to be turned on and control the conversion circuit 20 to work, so that the first direct current output by the sodium-ion battery 200 corresponding to the one of the switch control circuits 10 is converted and then output to the energy storage converter 300.

[0037] In some examples, the one of the switch control circuits 10 is, for example, the switch control circuit 10A, the cluster-level controller 30 can output a first electric signal to make the switch control circuit 10A turned on after receiving the first electric signal, and the cluster-level controller 30 can output a second electric signal to make the conversion circuit 20 convert the first direct current output by the sodium-ion battery 200 with a certain conversion efficiency.

[0038] In other words, by using one of the switch control circuits 10, the corresponding sodium-ion battery 200 is controlled to charge and discharge the energy storage converter 300, while the sodium-ion batteries 200 corresponding to the remaining switch control circuits 10 do not work to effectively cool down, which makes it possible to improve the service life of the sodium-ion battery 200 on the premise of efficiently charging and discharging the energy storage converter 300.

[0039] In some embodiments, in order to realize that the switch control circuit 10 is controlled by the cluster-level controller 30 to charge and discharge the energy storage converter 300 by using the sodium-ion battery 200, the switch control circuit 10 comprises a control chip 11, a switch circuit 12, and a signal transceiver module 13, the control chip 11 is connected to a first end of the switch circuit 12, a second end of the switch circuit 12 is configured as the first end of the switch control circuit 10, a third end of the switch circuit 12 is configured as the second end of the switch control circuit 10, the control chip 11 is electrically connected to the signal transceiver module 13, and the signal transceiver module 13 is communicatively connected to the cluster-level controller 30.

[0040] In the embodiment, the signal transceiver module 13 can be a level signal transceiver, the signal transceiver module 13 can receive the level signal output by the cluster-level controller 30, and the signal transceiver module 13 can feed back the received level signal to the control chip 11, and then the control chip 11 can control the switch circuit 12 to be turned on.

[0041] In some embodiments, in order to reduce the power consumption of the modular cluster-level control device of the sodium-ion battery, the switch circuit 12 can be a boost circuit.

[0042] In the embodiment, the control chip 11 can convert into a corresponding PWM wave signal in response to the level signal, and control the boost circuit to perform boost processing on the direct current output by the sodium-ion battery 200 through the PWM wave signal.

[0043] In some embodiments, in order to improve the utilization efficiency of the communication resources of the cluster-level controller 30, the switch control circuit 10 is multiple, and the signal transceiver modules 13 of the switch control circuits 10 are connected in communication through a CAN bus network. One signal transceiver module 13 of one switch control circuit 10 is directly connected in communication with the cluster-level controller 30, and the signal transceivers of the remaining switch control circuits 10 are indirectly connected in communication with the cluster-level controller 30 through one switch control circuit 10.

[0044] In the embodiment, one switch control circuit 10 is, for example, the switch control circuit 10A, and the remaining switch control circuits 10 are, for example, the switch control circuit 10B and the switch control circuit 10C. The switch control circuit 10A can receive the identification B of the switch control circuit 10B and the third electric signal sent by the cluster-level controller 30, and the switch control circuit 10A sends the identification B and the third electric signal to the switch control circuit 10B, so that the switch control circuit 10B is turned on in response to the third electric signal.

[0045] In some embodiments, in order to reduce the damage of the components of the conversion circuit 20, a direct current buffer circuit 40 is arranged between the switch control circuit 10 and the conversion circuit 20; and / or, a direct current buffer circuit 40 is arranged between the conversion circuit 20 and the energy storage converter 300.

[0046] In some embodiments, the direct current buffer circuit 40 includes a first resistor R1, a second resistor R2, and a first capacitor C1. The first end of the first capacitor C1 is connected with the first end of the first resistor R1, the second end of the first resistor R1 is connected with the first end of the second resistor R2, the second end of the first capacitor C1 is connected with the positive connection end of the conversion circuit 20 in an electric manner, and the second end of the second resistor R2 is connected with the negative connection end of the conversion circuit 20 in an electric manner.

[0047] In other words, by setting the first resistor R1, the second resistor R2 and the first capacitor C1, the sharp voltage in the conversion circuit 20 can be effectively absorbed, so as to reduce the occurrence of the damage of the components in the conversion circuit 20.

[0048] In some embodiments, in order to improve the stability of the direct current input to the conversion circuit 20 and the direct current output by the conversion circuit 20, a filter circuit 50 is arranged between the switch control circuit 10 and the conversion circuit 20; and / or, a filter circuit 50 is arranged between the conversion circuit 20 and the energy storage converter 300.

[0049] In the embodiment, the filter circuit 50 can be an existing filter circuit 50, for example, a passive filter circuit 50 composed of resistors, capacitors and inductors, which is not limited here.

[0050] In some embodiments, in order to realize that the conversion circuit 20 can provide the required direct current to the energy storage converter 300, the conversion circuit 20 comprises a first conversion circuit, an isolation circuit and a second conversion circuit, the first end of the first conversion circuit is the first end of the conversion circuit 20, the second end of the first conversion circuit is connected with the first end of the isolation circuit, the second end of the isolation circuit is connected with the first end of the second conversion circuit, and the second end of the second conversion circuit is the second end of the conversion circuit 20.

[0051] In the embodiment, the first conversion circuit can be an existing direct current-alternating current conversion circuit, the isolation circuit can be a transformer, and the second conversion circuit can be an existing direct current-alternating current conversion circuit. The direct current output by the sodium ion battery 200 is converted into alternating current by the first conversion circuit, and then output to the transformer. The alternating current output by the transformer can be converted into direct current by the second conversion circuit, so as to output the direct current required by the energy storage converter 300. The first conversion circuit and the second conversion circuit can be controlled by the cluster-level controller 30, that is, the cluster-level controller 30 outputs PMW wave signals with different duty cycles to control the conversion efficiency of the first conversion circuit or the second conversion circuit.

[0052] According to the power supply device provided in the embodiment of the present application, the modular cluster-level control device of the sodium ion battery in any of the above embodiments is included.

[0053] In some embodiments, the power supply device further comprises a plurality of sodium ion batteries 200, and the plurality of sodium ion batteries 200 are electrically connected with the corresponding switch control circuit 10 in the modular cluster-level control device of the sodium ion battery.

[0054] Although some specific embodiments of the present application have been described in detail by way of example with reference to the drawings, it is to be understood that the examples are for illustrative purposes only and are not to be construed as limiting the scope of the present application. It is to be understood that modifications can be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A modular cluster level control device for a sodium-ion battery, characterized in that, The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery.

2. The modular cluster-level control device for sodium-ion batteries of claim 1, wherein, The application relates to a modular cluster control device of a sodium ion battery.

3. The modular cluster-level control device for sodium-ion batteries of claim 1, wherein, The application relates to a modular cluster control device of a sodium ion battery.

4. The modular cluster-level control device for sodium-ion batteries of claim 1, wherein, The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery.

5. The modular cluster-level control device of the sodium-ion battery according to claim 4, characterized in that, The application relates to a modular cluster control device of a sodium ion battery.

6. The modular cluster-level control device of sodium-ion batteries of claim 1, wherein, The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery.

7. The modular cluster-level control device of sodium-ion batteries of claim 1, wherein, The application relates to a modular cluster control device of a sodium ion battery.

8. A power supply device, characterized by comprising: The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery.

9. The power supply device according to claim 8, wherein The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. The application relates to a modular cluster control device of a sodium ion battery. 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