CN215580398U - Mobile electric energy storage interface device - Google Patents
Mobile electric energy storage interface device Download PDFInfo
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- CN215580398U CN215580398U CN202121114704.3U CN202121114704U CN215580398U CN 215580398 U CN215580398 U CN 215580398U CN 202121114704 U CN202121114704 U CN 202121114704U CN 215580398 U CN215580398 U CN 215580398U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 47
- 230000005611 electricity Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model relates to a mobile electric energy storage interface device, which comprises a shell and a control circuit inside the shell, wherein the control circuit comprises: the system comprises a battery system, a control button, a logic controller, a switch electric operating mechanism and a switch combination mechanism; the switch combination mechanism includes: a first switch D1, a second switch D2, a third switch D3, a fourth switch D4, a fifth switch D5, a sixth switch D6, a seventh switch D7, a first female connector C11, and a second female connector C21. The utility model is convenient for the mobile electric energy storage to be flexibly connected into the power grid. By installing one interface device provided by the utility model on the site, the mobile electric energy storage can be connected into a power grid in any mode of parallel connection or serial connection, and a parallel connection interface device and a serial connection interface device do not need to be installed on the site at the same time.
Description
Technical Field
The utility model belongs to the technical field of interface devices, relates to an interface device aiming at realizing flexible access of mobile electric energy storage to a power grid, and particularly relates to a mobile electric energy storage interface device.
Background
With the construction of a novel power system mainly based on new energy, the electric energy storage is more widely applied to the power system. According to the deployment form, the electric energy storage is generally divided into two forms of fixed container electric energy storage and vehicle-mounted movable electric energy storage. The mobile electric energy storage is usually connected in parallel and is merged into a power grid for running through a parallel connection interface device pre-installed on the site of a transformer substation area or a switch station and the like; in order to meet the requirement of high power quality in the occasions of power utilization of precision machining enterprises and the like, the mobile electric energy storage is required, and the mobile electric energy storage is connected in series between a power grid and a user through a series interface device pre-installed on site.
At present, in order to meet the requirement that mobile electric energy storage can be connected into a power grid in a parallel connection mode and a series connection mode, a parallel connection interface device and a series connection interface device need to be installed in a transformer substation area or a switch station at the same time. The two interface devices are installed on site, so that the equipment cost, the installation cost and the occupied area of the interface devices are increased, and the waste of manpower and financial resources is caused.
Through searching, no prior art publication which is the same as or similar to the present invention is found.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a mobile electric energy storage interface device which is reasonable in design, strong in practicability, low in installation cost and small in occupied area.
The utility model solves the practical problem by adopting the following technical scheme:
a mobile electrical energy storage interface device comprising a housing and control circuitry within the housing, the control circuitry comprising: the system comprises a battery system, a control button, a logic controller, a switch electric operating mechanism and a switch combination mechanism; the switch combination mechanism includes: a first switch D1, a second switch D2, a third switch D3, a fourth switch D4, a fifth switch D5, a sixth switch D6, a seventh switch D7, a first female connector C11 and a second female connector C21; one end of the first switch D1 is connected with the power system grid side S, the other end of the first switch D1 is connected with a seventh switch D7, a sixth switch D6, a fifth switch D5 and a fourth switch D4 in series, and the other end of the fourth switch D4 is connected with the power system load side S; the second switch D2 is connected in parallel with the first switch D1, the seventh switch D7 and the sixth switch D6; the third switch D3 is connected in parallel with a sixth switch D6, a fifth switch D5 and a fourth switch D4; the first female connector C11 is connected in parallel between a first switch D1 and a seventh switch D7; the second female connector C21 is connected in parallel between a fifth switch D5 and a fourth switch D4; the control button is connected with the switch electric operating mechanism through the logic controller, and the logic controller receives the control button command and controls the switch electric operating mechanism according to the button operating mode; the switch electric operating mechanism is connected with the switch combination mechanism and used for controlling the on-off of each switch in the switch combination mechanism according to the instruction of the logic controller and returning the on-off state of each switch to the logic controller.
And the battery system is respectively connected with the control button, the logic controller and the switch electric operating mechanism and supplies power to the control button, the logic controller and the switch electric operating mechanism.
And the battery system is connected with the power system power grid side S through the voltage reduction rectifying device and is used for getting electricity from the power system power grid side S.
And the control button comprises four operation modes of direct supply, series connection, parallel connection and emergency.
The utility model has the advantages and beneficial effects that:
the utility model provides an electric energy storage interface device, which is convenient for flexible access of mobile electric energy storage to a power grid compared with a parallel interface device or a serial interface device which is used for accessing the mobile electric energy storage to the power grid at present. By installing one interface device provided by the utility model on the site, the mobile electric energy storage can be connected into a power grid in any mode of parallel connection or serial connection, and a parallel connection interface device and a serial connection interface device do not need to be installed on the site at the same time.
Drawings
Fig. 1 is a circuit connection diagram of the present invention.
Detailed Description
The embodiments of the utility model will be described in further detail below with reference to the accompanying drawings:
a mobile electrical energy storage interface device, as shown in fig. 1, comprising a housing and a control circuit therein, the control circuit comprising: the system comprises a battery system, a control button, a logic controller, a switch electric operating mechanism and a switch combination mechanism; the switch combination mechanism includes: a first switch D1, a second switch D2, a third switch D3, a fourth switch D4, a fifth switch D5, a sixth switch D6, a seventh switch D7, a first female connector C11 and a second female connector C21; one end of the first switch D1 is connected with the power system grid side S, the other end of the first switch D1 is connected with a seventh switch D7, a sixth switch D6, a fifth switch D5 and a fourth switch D4 in series, and the other end of the fourth switch D4 is connected with the power system load side S; the second switch D2 is connected in parallel with the first switch D1, the seventh switch D7 and the sixth switch D6; the third switch D3 is connected in parallel with a sixth switch D6, a fifth switch D5 and a fourth switch D4; the first female connector C11 is connected in parallel between a first switch D1 and a seventh switch D7; the second female connector C21 is connected in parallel between a fifth switch D5 and a fourth switch D4; the control button is connected with the switch electric operating mechanism through the logic controller, and the logic controller receives the control button command and controls the switch electric operating mechanism according to the button operating mode; the switch electric operating mechanism is connected with the switch combination mechanism and used for controlling the switch-on and switch-off of the switch combination mechanism according to the instruction of the logic controller and returning the on-off state of each switch to the logic controller.
In this embodiment, the battery system is respectively connected with and supplies power to the control button, the logic controller and the switch electric operating mechanism.
In this embodiment, the battery system is connected to the grid side S of the power system through the step-down rectifying device, and is configured to take power from the grid side S of the power system.
In this embodiment, the control button includes four operation modes, i.e., direct supply, series connection, parallel connection, and emergency.
The functions and functions of the components of the mobile electrical energy storage interface device are described in detail below:
s, L show the physical electrical connections of the interface device to the grid side and the load side of the power system, respectively.
The voltage reduction rectifying device is used for realizing the function of taking electricity from the power grid side S, and the taken electricity is transmitted to the battery system;
the battery system is used for storing electricity for the device and providing a required working power supply for a control button, a logic controller and a switch electric operating mechanism of the device;
the control buttons are operated by workers and have the function of indicating lamps, namely when the corresponding buttons are pressed, the indicating lamps of the corresponding buttons are turned on, and the indicating lamps of other buttons are turned off; the control button has four operation modes of direct supply, serial connection, parallel connection and emergency, the direct supply mode is a mode that the power grid side S directly supplies power to the load side L without depending on the mobile electric energy storage, the serial connection mode is a mode that the power grid side S is connected with the mobile electric energy storage in series to supply power to the load side L, the parallel connection mode is a mode that the power grid side S is connected with the mobile electric energy storage in parallel to supply power to the load side L, and the emergency mode is a mode that the power grid side S is completely disconnected from the load side L;
the logic controller receives a control button instruction and controls the switch electric operating mechanism according to a button operation mode;
the switch electric operating mechanism further controls the on and off of each switch in the switch combination mechanism (as shown by a dashed line frame in the figure) according to the instruction of the logic controller.
Wherein, C11, C21 are female connectors of mobile electric energy storage on the interface device, C12, C22 are self-contained male connectors of the mobile electric energy storage system, and D1, D2, D3, D4, D5, D6, D7 are all internal electrical switches of the interface device.
When the switch is in field work, a worker presses different control buttons to control the switch electric operating mechanism through the logic controller, and then the switch electric operating mechanism operates the on-off of a specific switch to achieve different switch combination functions, and the mobile electric energy storage parallel connection mode or series connection mode is connected into a power grid.
The working principle of the utility model is as follows:
in the default power supply mode, the device is in a direct supply mode, the direct supply indicator lamp is normally on, the mobile electric energy storage is not connected into the power grid for operation, at the moment, the electric switches D2, D3 and D6 are closed, the electric switches D1, D4, D5 and D7 are disconnected, and the power grid at the S side supplies power to the load at the L side normally through a path D2-D6-D3.
Under the default power supply mode, when the mobile electric energy storage site needs to be connected into a power grid in a series connection mode to operate, the series connection button is pressed down, and the direct supply indicator lamp is turned off. At the moment, the device firstly disconnects the electric switches D2, D3 and D6, confirms that the electric switches D5 and D7 are disconnected, secondly closes the electric switches D1 and D4, and lights the serial indicator lamp, and then a worker enables the two male connectors C12 and C22 of the mobile electric energy storage to be respectively connected with the C11 and C21 of the interface device, so that the mobile electric energy storage can be connected to a power grid in a serial mode. When the mobile electric energy storage quitting and the load recovering default power supply mode are needed, the direct supply button is pressed down, the serial connection indicator lamp is turned off, the device turns off the electrical switches D1 and D4, turns on the electrical switches D2, D3 and D6, the direct supply indicator lamp is turned on, then the worker enables the two male connectors C12 and C22 of the mobile electric energy storage to be respectively disconnected with the C11 and C21 of the interface device, and the default power supply mode can be recovered.
Under the default power supply mode, when the mobile electric energy storage site needs to be connected into a power grid in a parallel mode to operate, the parallel connection button is pressed down, and the direct supply indicator lamp is turned off. The device firstly confirms that the electrical switches D1 and D4 are disconnected, secondly closes the electrical switches D5 and D7, and turns on the indicator light; then, the worker only needs to connect the male connector C12 or C22 of the mobile electric energy storage with the C11 or C21 of the interface device respectively, and the two sets of mobile electric energy storage can be supported at the same time to supply power to the load through the C12-C11-D7-D3-L path and the C22-C21-D5-D6-D3-L path respectively. When the mobile electric energy storage quit and the load restores the default power supply mode, the direct supply button is pressed, the indicator lamp is turned off, the electric switches D5 and D7 are firstly turned off, the direct supply indicator lamp is turned on, and then the worker enables the male connector C12 or C22 of the mobile electric energy storage to be disconnected with the C11 or C21 of the interface device, so that the default power supply mode can be restored.
When the electrical connection between the power grid side and the load side needs to be disconnected, the emergency control button is pressed, the device disconnects all the switches D1-D7, and the emergency indicator lamp is always on.
The technical scheme adopted by the utility model comprises 7 electrical switches, and compared with the situation that a parallel interface device (generally 3 electrical switches are used) and a serial interface device (generally 3 electrical switches are used) are simultaneously installed on the site, the number of the electrical switches is increased by 1; however, the solution according to the utility model has a major cost advantage in view of the saved floor space costs, transportation costs, installation costs and other material costs of the device.
In summary, the electrical energy storage interface device provided by the utility model has the advantages of convenience for flexible access of the mobile electrical energy storage to the power grid and low comprehensive cost, is beneficial to promoting wider use of the mobile electrical energy storage, and is beneficial to supporting construction of a power system with new energy as a main body.
It should be emphasized that the examples described herein are illustrative and not restrictive, and thus the present invention includes, but is not limited to, those examples described in this detailed description, as well as other embodiments that can be derived from the teachings of the present invention by those skilled in the art and that are within the scope of the present invention.
Claims (4)
1. A mobile electrical energy storage interface device, characterized in that: including the control circuit of shell and inside thereof, control circuit includes: the system comprises a battery system, a control button, a logic controller, a switch electric operating mechanism and a switch combination mechanism; the switch combination mechanism includes: a first switch D1, a second switch D2, a third switch D3, a fourth switch D4, a fifth switch D5, a sixth switch D6, a seventh switch D7, a first female connector C11 and a second female connector C21; one end of the first switch D1 is connected with the power system grid side S, the other end of the first switch D1 is connected with a seventh switch D7, a sixth switch D6, a fifth switch D5 and a fourth switch D4 in series, and the other end of the fourth switch D4 is connected with the power system load side S; the second switch D2 is connected in parallel with the first switch D1, the seventh switch D7 and the sixth switch D6; the third switch D3 is connected in parallel with a sixth switch D6, a fifth switch D5 and a fourth switch D4; the first female connector C11 is connected in parallel between a first switch D1 and a seventh switch D7; the second female connector C21 is connected in parallel between a fifth switch D5 and a fourth switch D4; the control button is connected with the switch electric operating mechanism through the logic controller, and the logic controller receives the control button command and controls the switch electric operating mechanism according to the button operating mode; the switch electric operating mechanism is connected with the switch combination mechanism and used for controlling the on-off of each switch in the switch combination mechanism according to the instruction of the logic controller and returning the on-off state of each switch to the logic controller.
2. A mobile electrical energy storage interface device as in claim 1, wherein: and the battery system is respectively connected with the control button, the logic controller and the switch electric operating mechanism and supplies power to the control button, the logic controller and the switch electric operating mechanism.
3. A mobile electrical energy storage interface device as in claim 1, wherein: the battery system is connected with the power system power grid side S through the voltage reduction rectifying device and used for getting electricity from the power system power grid side S.
4. A mobile electrical energy storage interface device as in claim 1, wherein: the control button comprises four operation modes of direct supply, series connection, parallel connection and emergency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121114704.3U CN215580398U (en) | 2021-05-24 | 2021-05-24 | Mobile electric energy storage interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121114704.3U CN215580398U (en) | 2021-05-24 | 2021-05-24 | Mobile electric energy storage interface device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580398U true CN215580398U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121114704.3U Active CN215580398U (en) | 2021-05-24 | 2021-05-24 | Mobile electric energy storage interface device |
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| Country | Link |
|---|---|
| CN (1) | CN215580398U (en) |
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2021
- 2021-05-24 CN CN202121114704.3U patent/CN215580398U/en active Active
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