Energy storage battery pack and energy storage battery system

Abstract

The utility model belongs to the technical field of energy storage battery packs, and particularly relates to an energy storage battery pack and an energy storage battery system, and the energy storage battery pack comprises a controller, a battery module, a DCDC module, an isolation switch, an opening and closing driving module and a contact detection module. Wherein the output part of the opening and closing driving module is connected with a connecting rod of the isolating switch; the battery module is charged and discharged through the DCDC module and the isolating switch; the controller controls the opening and closing driving module to drive the disconnecting switch to be opened or closed so as to control the on-off of the DCDC module; the controller also detects the on-off state of the isolation switch through the contact detection module. According to the utility model, the opening and closing driving module is arranged to realize the automatic opening and closing function of the isolation switch, and the contact detection module is adopted to realize the function of monitoring the state of the isolation switch, so that the working hours of installation, operation and maintenance can be reduced, and intelligence, safety and reliability are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage battery packs, and specifically relates to an energy storage battery pack and an energy storage battery system. Background Art

[0002] Circuit breakers are used for electrical protection in user-side energy storage solutions, but existing circuit breakers require manual operation when powering on and off, which poses operational risks.

[0003] At present, household energy storage battery packs use fuses and circuit breakers to form circuit breaker devices for electrical protection, but the circuit breaker needs to be manually operated and cannot achieve remote disconnection. At the same time, because household energy storage battery packs need to meet waterproof requirements, due to the large size of the circuit breaker itself, a waterproof cover needs to be installed on the circuit breaker so that the operating handle of the circuit breaker is blocked by the waterproof cover. On the one hand, the circuit breaker status cannot be distinguished from the appearance, and additional accessories are required to monitor the circuit breaker status, resulting in increased cost and size of the energy storage battery pack. On the other hand, the circuit breaker needs to be disassembled for maintenance and repair during power-on and power-off detection and fault repair, which increases installation and maintenance costs.

[0004] Therefore, there is an urgent need to develop a new energy storage battery pack and energy storage battery system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an energy storage battery pack and an energy storage battery system.

[0006] In order to solve the above technical problems, the utility model provides an energy storage battery pack, which includes: a controller, a battery module, a DCDC module, an isolating switch, an opening and closing drive module and a contact detection module electrically connected to the controller; wherein the battery module, the DCDC module, and the isolating switch are connected in sequence, the output part of the opening and closing drive module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; the battery module is suitable for charging and discharging through the DCDC module and the isolating switch; the controller is suitable for controlling the opening and closing drive module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and the controller is also suitable for detecting the on and off state of the isolating switch through the contact detection module.

[0007] Furthermore, the battery module is connected to the DCDC module via a first fuse.

[0008] Furthermore, a contactor is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module.

[0009] Furthermore, the opening and closing drive module includes: an opening and closing motor electrically connected to the controller; the output shaft of the opening and closing motor is connected to the connecting rod of the isolating switch; the controller is suitable for controlling the rotation of the opening and closing motor to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close.

[0010] Furthermore, the contact detection module includes: a DI signal line electrically connected to the controller; the DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; the controller obtains the on / off state of the isolating switch according to the DI signal.

[0011] Further, the DCDC module is connected to the isolation switch via a second fuse.

[0012] On the other hand, the utility model provides an energy storage battery system, which includes: an energy storage battery pack and an energy storage converter; wherein the energy storage battery pack is suitable for supplying power to a load through the energy storage converter.

[0013] Further, the energy storage battery pack includes: a controller, a battery module, a DCDC module, an isolating switch, an opening and closing drive module and a contact detection module electrically connected to the controller; wherein the battery module, the DCDC module, and the isolating switch are connected in sequence, the output of the opening and closing drive module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; the battery module is suitable for charging and discharging through the DCDC module and the isolating switch; the controller is suitable for controlling the opening and closing drive module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and the controller is also suitable for detecting the on and off state of the isolating switch through the contact detection module.

[0014] Furthermore, the battery module is connected to the DCDC module through a first fuse; a contactor is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module; and the DCDC module is connected to an isolating switch through a second fuse.

[0015] Furthermore, the opening and closing drive module includes: an opening and closing motor electrically connected to the controller; the output shaft of the opening and closing motor is connected to the connecting rod of the isolating switch; the controller is suitable for controlling the rotation of the opening and closing motor to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close; the contact detection module includes: a DI signal line electrically connected to the controller; the DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; the controller obtains the on-off state of the isolating switch according to the DI signal.

[0016] The beneficial effect of the utility model is that the utility model can realize the automatic opening and closing function of the isolating switch by setting the opening and closing drive module, and at the same time can realize the function of monitoring the status of the isolating switch through the contact detection module, which can reduce the working hours of installation and operation and maintenance, and realize intelligence, safety and reliability.

[0017] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a principle block diagram of the energy storage battery pack of the utility model.

[0021] In the figure:

[0022] FU1, first fuse; FU2, second fuse; KM1, contactor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, in this embodiment, as Figure 1As shown, this embodiment provides an energy storage battery pack, which includes: a controller, a battery module, a DCDC module, an isolating switch, an opening and closing drive module and a contact detection module electrically connected to the controller; wherein the battery module, the DCDC module, and the isolating switch are connected in sequence, the output of the opening and closing drive module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; the battery module is suitable for charging and discharging through the DCDC module and the isolating switch; the controller is suitable for controlling the opening and closing drive module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and the controller is also suitable for detecting the on and off state of the isolating switch through the contact detection module.

[0025] Specifically, Figure 1 The solid lines are power lines and the dotted lines are control lines.

[0026] In this embodiment, the DCDC module plays a rectifying role to ensure the stability of input and output voltages and currents, while also taking into account the role of transmitting loop information to the background.

[0027] In this embodiment, this embodiment can realize the automatic opening and closing function of the isolating switch by setting the opening and closing drive module, and at the same time can realize the function of monitoring the status of the isolating switch through the contact detection module, which can reduce the working hours of installation and operation and maintenance, and realize intelligence, safety and reliability.

[0028] In this embodiment, the battery module is connected to the DCDC module via the first fuse FU1.

[0029] In this embodiment, the first fuse FU1 plays a role in circuit protection.

[0030] In this embodiment, a contactor KM1 is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module.

[0031] In this embodiment, the contactor KM1 plays the role of switching on and off.

[0032] In this embodiment, the opening and closing drive module includes: an opening and closing motor electrically connected to the controller; the output shaft of the opening and closing motor is connected to the connecting rod of the isolating switch; the controller is suitable for controlling the rotation of the opening and closing motor to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close.

[0033] In this embodiment, the contact detection module includes: a DI signal line electrically connected to the controller; the DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; the controller obtains the on / off state of the isolating switch according to the DI signal.

[0034] In this embodiment, the isolating switch can realize manual opening and closing and automatic opening and closing functions, and can monitor the state of the isolating switch at the same time. The isolating switch has its own opening and closing motor, which drives the connecting rod of the isolating switch to rotate, thereby realizing the automatic opening and closing function of the isolating switch. By utilizing the automatic opening and closing function of the isolating switch, when the background issues an alarm signal, the automatic opening function can be realized to avoid further expansion of the accident. The two sets of normally open and normally closed contacts of the isolating switch can provide DI signals for the background to monitor the state of the isolating switch. The user can also realize manual opening through the operating mechanism.

[0035] In this embodiment, the DCDC module is connected to the isolation switch via the second fuse FU2.

[0036] In this embodiment, the second fuse FU2 plays a role in line protection, and the manual and remote disconnection capabilities of the isolating switch are used to perform the connection and disconnection functions of the main circuit. At the same time, the status of the isolating switch can be viewed in the background.

[0037] Embodiment 2, based on embodiment 1, this embodiment provides an energy storage battery system, which includes: an energy storage battery pack and an energy storage inverter; wherein the energy storage battery pack is suitable for supplying power to a load through the energy storage inverter.

[0038] In this embodiment, an isolating switch provided with an opening and closing drive module is used on the output side of the energy storage battery pack, which can solve the problem that the existing protection devices cannot be remotely opened and closed, and can also meet the requirements of background remote monitoring of the connection and disconnection status of the main circuit.

[0039] In this embodiment, the energy storage battery pack includes: a controller, a battery module, a DCDC module, an isolating switch, an opening and closing drive module and a contact detection module electrically connected to the controller; wherein the battery module, the DCDC module, and the isolating switch are connected in sequence, the output of the opening and closing drive module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; the battery module is suitable for charging and discharging through the DCDC module and the isolating switch; the controller is suitable for controlling the opening and closing drive module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and the controller is also suitable for detecting the on and off state of the isolating switch through the contact detection module.

[0040] In this embodiment, the battery module is connected to the DCDC module through the first fuse FU1; a contactor KM1 is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module; the DCDC module is connected to the isolation switch through the second fuse FU2.

[0041] In this embodiment, the opening and closing drive module includes: an opening and closing motor electrically connected to the controller; the output shaft of the opening and closing motor is connected to the connecting rod of the isolating switch; the controller is suitable for controlling the rotation of the opening and closing motor to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close; the contact detection module includes: a DI signal line electrically connected to the controller; the DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; the controller obtains the on-off state of the isolating switch according to the DI signal.

[0042] To sum up, the utility model can realize the automatic opening and closing function of the isolating switch by setting the opening and closing drive module, and can realize the function of monitoring the status of the isolating switch through the contact detection module, which can reduce the working hours of installation and operation and maintenance, and realize intelligence, safety and reliability.

[0043] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0044] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0047] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0048] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0049] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An energy storage battery pack, characterized in that: include: A controller, a battery module, a DCDC module, an isolating switch, a switch-on and switch-off drive module and a contact detection module electrically connected to the controller; in The battery module, DCDC module and isolating switch are connected in sequence, the output part of the opening and closing driving module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; The battery module is suitable for charging and discharging through a DCDC module and an isolating switch; The controller is suitable for controlling the opening and closing driving module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and The controller is also suitable for detecting the on / off state of the isolation switch through a contact detection module.

2. The energy storage battery pack according to claim 1, characterized in that: The battery module is connected to the DCDC module via a first fuse.

3. The energy storage battery pack according to claim 1, characterized in that: A contactor is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module.

4. The energy storage battery pack according to claim 1, characterized in that: The opening and closing drive module comprises: an opening and closing motor electrically connected to the controller; The output shaft of the opening and closing motor is connected to the connecting rod of the disconnector; The controller is suitable for controlling the opening and closing motor to rotate, so as to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close.

5. The energy storage battery pack according to claim 1, characterized in that: The contact detection module includes: a DI signal line electrically connected to the controller; The DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; The controller obtains the on / off state of the isolation switch according to the DI signal.

6. The energy storage battery pack according to claim 1, characterized in that: The DCDC module is connected to the isolation switch via a second fuse.

7. An energy storage battery system, characterized in that: include: Energy storage battery packs and energy storage inverters; in The energy storage battery pack is suitable for supplying power to a load through an energy storage converter.

8. The energy storage battery system according to claim 7, characterized in that: The energy storage battery pack includes: a controller, a battery module, a DCDC module, an isolating switch, a switch-on and switch-off drive module electrically connected to the controller, and a contact detection module; wherein The battery module, DCDC module and isolating switch are connected in sequence, the output part of the opening and closing driving module is connected to the connecting rod of the isolating switch, and the contact detection module is connected to the normally open and normally closed contacts of the isolating switch; The battery module is suitable for charging and discharging through a DCDC module and an isolating switch; The controller is suitable for controlling the opening and closing driving module to drive the isolating switch to open or close, so as to control the on and off of the DCDC module; and The controller is also suitable for detecting the on / off state of the isolation switch through a contact detection module.

9. The energy storage battery system according to claim 8, characterized in that: The battery module is connected to the DCDC module via a first fuse; A contactor is provided between the battery module and the DCDC module to control the on-off between the battery module and the DCDC module; The DCDC module is connected to the isolation switch via a second fuse.

10. The energy storage battery system according to claim 8, characterized in that: The opening and closing drive module comprises: an opening and closing motor electrically connected to the controller; The output shaft of the opening and closing motor is connected to the connecting rod of the disconnector; The controller is suitable for controlling the opening and closing motor to rotate, so as to drive the connecting rod of the isolating switch to rotate, thereby driving the isolating switch to open or close; The contact detection module includes: a DI signal line electrically connected to the controller; The DI signal line connects two groups of normally open contacts and normally closed contacts of the isolating switch to provide a DI signal to the controller; The controller obtains the on / off state of the isolation switch according to the DI signal.

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