CN220509883U - Off-grid power supply equipment and switching device - Google Patents

Abstract

The application provides off-grid power supply equipment and a switching device. The off-grid power supply equipment is used for connecting the power utilization side plug-in female end. The switch device is used for plugging the female end at the electricity utilization side. The power utilization side plug-in female end is provided with a first switch with a first key position. When the first switch is positioned at the first key position, the power utilization side plug-in female end is communicated with the external electric network. The off-grid power supply device comprises an energy storage power supply, a first insert and a lock. The energy storage power supply is configured to be electrically connectable to the power side plug female terminal. The lock is configured to be disposed at a location of the first switch. The locking piece is provided with a first locking piece locking hole. The first latch lock aperture is configured to permit insertion of the first insert. The first insert is configured such that when inserted into the first lock aperture, at least a portion of the first insert and lock combination is in a path of the first switch switching to the first key position. The utility model provides a leave net power supply unit and switching device, through the communication of the female end of electricity side grafting and outer electric network of entity structure restriction.

Description

Off-grid power supply equipment and switching device

Technical Field

The application relates to the technical field of off-grid power supply, in particular to off-grid power supply equipment and a switching device.

Background

In recent years, two power supply modes, namely energy storage power supply and external power supply, are showing an increasingly integrated development trend. And the energy storage power supply is connected to the user internal power grid, so that the electric equipment on the user internal power grid supplies power, and the application scene usually appears when the external power grid is powered off. However, when the external network resumes the power supply, if the user does not pull out the plug of the energy storage power supply, the main switch of the internal power grid of the user is switched on, which can cause the current of the external power grid to suddenly enter the internal power grid of the user, cause surge impact on the energy storage power supply connected to the internal power grid of the user, damage the electrical elements inside the energy storage power supply, and the like.

Disclosure of Invention

In view of this, the present application provides an off-grid power supply device and a switching device, which limit the communication between the power-side plug female terminal and the external power grid through a physical structure.

An embodiment of the application provides off-grid power supply equipment. The off-grid power supply equipment is used for connecting the power utilization side plug-in female end. The power utilization side plug-in female end is provided with a first switch with a first key position. When the first switch is positioned at the first key position, the power utilization side plug-in female end is communicated with the external electric network. The off-grid power supply device comprises an energy storage power supply, a first insert and a lock. The energy storage power supply is configured to be electrically connectable to the power side plug female terminal. The lock is configured to be disposed at a location of the first switch. The locking piece is provided with a first locking piece locking hole. The first latch lock aperture is configured to permit insertion of the first insert. The first insert is configured such that when inserted into the first lock aperture, at least a portion of the first insert and lock combination is in a path of the first switch switching to the first key position.

In the above embodiment, when the external power grid is not powered and the external power grid cannot supply power to the power-consumption-side plugging female terminal, the first switch leaves the first key, and the energy storage power supply is electrically connected to the power-consumption-side plugging female terminal at this time, so that the energy storage power supply can supply power to the power-consumption-side plugging female terminal. After the first switch leaves the first key position, the first insert is inserted into a first lock hole of the lock piece, and the lock piece is positioned at the first switch, so that the combination formed by the first insert and the lock piece can form structural interference on the first switch, and the first switch cannot be switched to the first key position. Even when the external power grid is used for recovering power supply and the like and the external power grid is required to be used for supplying power, a user forgets to disconnect the energy storage power supply from the power utilization side plug-in female end, and the first switch cannot be switched to the first key position due to the fact that the first plug-in component is inserted into the first lock hole, so that the user is reminded of disconnecting the energy storage power supply from the power utilization side plug-in female end, and the surge impact of the external power grid on the energy storage power supply is avoided.

In some embodiments of the present application, the energy storage power supply is provided with a second switch and a first power supply lock hole. The second switch has a second key position. And when the second switch is positioned at the second key position, the energy storage power supply is allowed to supply power to the power utilization side plug-in female terminal. The off-grid power supply also includes a second insert. The first power lock hole is configured to allow the second insert to be inserted. When the second plug-in piece is inserted into the first power supply lock hole, the second switch can be positioned at the second key position.

In the above embodiment, after the energy storage power source is connected to the power-using-side plug-in female terminal, the second plug-in member needs to be inserted into the second power source lock hole to switch the second switch to the second key position, so as to allow the energy storage power source to supply power to the power-using side. Therefore, a safety can be additionally arranged in the aspects of avoiding impact of an external power grid on the energy storage power supply, even if the first switch is switched to the first key position, the second plug-in unit does not switch the second switch to the second key position, and the energy storage power supply and the power utilization side plug-in female end are not electrically connected, so that the energy storage power supply can be protected.

In some embodiments of the present application, the second switch further has a third key position. And when the second switch is positioned at the third key position, the energy storage power supply is forbidden to supply power to the power utilization side plug-in female terminal. The energy storage power supply is also provided with a second power supply lock hole. The second power lock hole is configured to allow the first insert to be inserted. When the first plug-in piece is inserted into the second power supply lock hole, the second switch can be positioned at the third key position.

In the above embodiments, a way is provided by the first insert to switch the second switch away from the second key position. After the first insert leaves the first lock hole, the first switch is in a state capable of being switched to the first key position. Therefore, the first insertion piece leaving the first locking piece locking hole is inserted into the second power supply locking hole so that the second switch is switched to the third key position, and the energy storage power supply is ensured to be incapable of supplying power to the power utilization side plug-in female end, so that the protection of the energy storage power supply is improved. The first plug-in components can insert the first locking piece lockhole of locking piece or energy storage power supply's second power lockhole respectively by oneself to prevent respectively that outer electric wire netting from to the female end power supply of electricity side grafting or energy storage power supply from to the female end power supply of electricity side grafting, through the different positions of inserting of same component, force the user to select to insert the position, thereby utilize entity limit structure to promote the stability of protection energy storage power supply.

In some embodiments of the present application, the second switch is a rocker switch. The rocker switch has a first end and a second end. The first end portion is configured to move in response to an external force transmitted by the first insert and to lift the second end portion to enable the second switch to be in the third key position. The second end is configured to move in response to another external force transmitted by the second insert and to lift the first end to place the second switch in the second key position.

In the above embodiment, if the first insert is inserted into the second power supply hole first, the second insert is inserted into the first power supply hole to press the second end portion, and the first insert can be sprung from the second power supply hole by tilting the first end portion. If the second insert is inserted into the first power supply lock hole, the first insert is inserted into the second power supply lock hole to press the first end portion, and the second insert can be sprung from the first power supply lock hole by tilting the second end portion. The second switch is a rocker switch, so that the first insert and the second insert can control the second switch to switch the key position in turn on one hand, and the first insert and the second insert can be helped to be separated from an energy storage power supply on the other hand.

In some embodiments of the present application, the locking member is further provided with a second locking member locking hole and a stopper. The second lock aperture is configured to permit insertion of the second insert. The stop portion is movably arranged. The lock has a stop position, and the stop portion is configured to be on a path of the first switch switching to the first key position when moved to the stop position. When the first insert is inserted into the first locking hole, the stopping part moves to the stopping position. When the second insert is inserted into the second lock hole, the stop part leaves the stop position.

In the above embodiment, the first insert and the second insert respectively control the moving direction of the stop portion of the lock, so as to control whether the stop portion can prevent the first switch from being switched to the first key position, so that the electric side plug-in female end is respectively powered by the energy storage power supply or the external power grid, the same stop portion is controlled by different components, and a user is forced to select which component is controlled, so that the stability of protecting the energy storage power supply is improved by using the entity limiting structure.

In some embodiments of the present application, the locking member is further provided with a second locking member locking hole. The second lock aperture is configured to permit insertion of the second insert. When the second insert is inserted into the second lock hole, the second insert does not stop the second switch from switching to the first key position.

In the above embodiment, when the second insert is not inserted into the first power supply lock hole, the second insert may be inserted into the second lock hole to store the second insert, so as to prevent the second insert from being lost, and not to affect the second switch to the first key position, so as to allow the external power grid to supply power to the power-consumption-side plug-in female terminal.

In some embodiments of the present application, the off-grid power supply device further comprises a monitoring module. The monitoring module is configured to monitor the external grid for electricity. The monitoring module is in communication connection with the lock. The lock is configured to lock the second insert within the second lock aperture. And when the monitoring module monitors that the external electric network is not powered on, the locking piece unlocks the second insertion piece positioned in the locking hole of the second locking piece.

In the above embodiment, under the cooperation of the monitoring module, the lock member can lock or unlock the second insert member, so that the condition that the second insert member can be separated from the second lock member lock hole when the external power grid supplies power to the power utilization side plug-in female end is avoided, and the second insert member is prevented from being inserted into the first power supply lock hole. When the external power grid supplies power to the power utilization side plug-in female terminal, the second switch cannot be switched to the second key position, so that the energy storage power supply is prevented from being electrically connected with the power utilization side plug-in female terminal, and the stability of the energy storage power supply is improved.

In some embodiments of the present application, the lock is configured to be electrically connected to the external grid and configured to lock the second insert within the second lock aperture. When the external electric network is powered down, the locking piece unlocks the second insert located in the locking hole of the second locking piece.

In the above embodiment, the locking member is electrically connected with the external power grid, so that the locking member can determine whether to lock the second inserting member, and the situation that the second inserting member can be separated from the second locking member lock hole when the external power grid supplies power to the power utilization side plug-in female end is avoided, so that the second inserting member is prevented from being inserted into the first power supply lock hole. When the external power grid supplies power to the power utilization side plug-in female terminal, the second switch cannot be switched to the second key position, so that the energy storage power supply is prevented from being electrically connected with the power utilization side plug-in female terminal, and the stability of the energy storage power supply is improved.

In some embodiments of the present application, the first insert and the second insert are structurally different, so that the first insert and the second insert cannot be simultaneously inserted in the same place of the lock and cannot be inserted in the same place of the energy storage power supply.

In the above embodiment, the first insert and the second insert are different in structure, so that a position error of the first insert or the second insert in the lock is avoided, and a position error of the first insert or the second insert in the energy storage power supply is avoided, a foolproof effect is achieved, and therefore the possibility that the energy storage power supply and the external power grid are electrically connected with the power utilization side plug-in female terminal at the same time is reduced, and the possibility that the energy storage power supply and the external power grid are not electrically connected with the power utilization side plug-in female terminal at the same time is reduced.

In some embodiments of the present application, the first switch has a toggle portion. The locking piece is provided with a limiting space. The spacing space is communicated with the first locking piece lockhole. The limit space is configured to be able to accommodate a pulling portion of the first switch in the first key position. When the first insert is inserted into the first locking hole, part of the first insert occupies a limiting space.

In the above embodiment, both the pulling portion of the first switch and the first insert can enter the pulling portion of the lock, so that the first switch can be switched to the first key position, and the first insert can be inserted into the first lock hole. But under the restriction in spacing space, pull portion and first plug-in components unable get into spacing space simultaneously to realize stopping first switch to first key position through first plug-in components, can play the effect of reminding the user when the user tries to change the key position of first switch, thereby promote the stability of protection energy storage power supply.

An embodiment of the present application provides a switching device. The switching device is configured to be applied to the power side plug female terminal. The switching device includes a first switch, a first insert, and a lock. The first switch has a first key position. When the first switch is positioned at the first key position, the power utilization side plug-in female end is communicated with the external electric network. The lock is configured to be disposed at a location of the first switch. The locking piece is provided with a first locking piece locking hole. The first latch lock aperture is configured to permit insertion of the first insert. The first insert is configured such that when inserted into the first lock aperture, at least a portion of the first insert and lock combination is in a path of the first switch switching to the first key position.

In the above embodiment, when the external power network fails to supply power to the power-use-side plug-in female terminal, or when the circuit is overhauled, the first switch leaves the first key position, so that other devices can be conveniently connected to the power-use-side plug-in female terminal. After the first switch leaves the first key position, the first insert is inserted into a first lock hole of the lock piece, and the lock piece is positioned at the first switch, so that the combination of the first insert and the lock piece can form structural interference on the first switch, and the first switch cannot be switched to the first key position. Even when the external power grid is used for recovering power supply and the like and the external power grid is required to be used for supplying power, the first switch cannot be switched to the first key position due to the fact that the first plug-in piece is inserted into the first lock hole, so that danger is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope.

FIG. 1 is a schematic diagram of an off-grid power supply device, an in-user power grid, and an external power grid when an energy storage power supply supplies power to the in-user power grid according to an embodiment of the present application;

FIG. 2 is a partial schematic diagram of off-grid power supply equipment, an in-user power grid, and an external power grid when an energy storage power supply supplies power to the in-user power grid according to an embodiment of the present application;

FIG. 3 is another partial schematic diagram of off-grid power supply equipment, an in-user power grid, and an external power grid when the energy storage power supply supplies power to the in-user power grid according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an off-grid power supply device, an in-consumer power grid, and an off-grid power supply device when the off-grid power supplies power to the in-consumer power grid according to an embodiment of the present disclosure;

FIG. 5 is a partial schematic diagram of off-grid power supply equipment, an in-consumer power grid, and an off-grid when the off-grid power supplies power to the in-consumer power grid in accordance with one embodiment of the present disclosure;

fig. 6 is another partial schematic diagram of off-grid power supply equipment, an in-consumer grid, and an off-grid when the off-grid power supplies power to the in-consumer grid in accordance with one embodiment of the present application.

Description of the main reference signs

100-off-grid power supply equipment 200-switching device 300-power-consumption-side plug-in female terminal

400-user internal grid 500-external grid

10-stored energy Power supply 20-first insert 30-Lock

40-second insert

101-second switch 102-first power supply lock hole 103-second power supply lock hole

301-first locking member locking hole 302-second locking member locking hole 303-limit space

310-first switch 311-spanner 320-socket

1011-first end 1012-second end

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In recent years, two power supply modes, namely energy storage power supply and external power supply, are showing an increasingly integrated development trend. And the energy storage power supply is connected to the user internal power grid, so that the electric equipment on the user internal power grid supplies power, and the application scene usually appears when the external power grid is powered off. However, when the external network resumes the power supply, if the user does not pull out the plug of the energy storage power supply, the main switch of the internal power grid of the user is switched on, which can cause the current of the external power grid to suddenly enter the internal power grid of the user, cause surge impact on the energy storage power supply connected to the internal power grid of the user, damage the electrical elements inside the energy storage power supply, and the like.

The embodiment of the application provides off-grid power supply equipment and a switching device. The off-grid power supply equipment is used for connecting the power utilization side plug-in female end. The switch device is inserted into the female end at the power utilization side. The power utilization side plug-in female end is provided with a first switch with a first key position. When the first switch is positioned at the first key position, the power utilization side plug-in female end is communicated with the external electric network. The off-grid power supply device comprises an energy storage power supply, a first insert and a lock. The energy storage power supply is configured to be electrically connectable to the power side plug female terminal. The lock is configured to be disposed at a location of the first switch. The locking piece is provided with a first locking piece locking hole. The first latch lock aperture is configured to permit insertion of the first insert. The first insert is configured such that when inserted into the first lock aperture, at least a portion of the first insert and lock combination is in a path of the first switch switching to the first key position.

Under the condition that the external electric network cannot supply power to the power-consumption-side plugging female end when the external electric network is powered off, the first switch leaves the first key position, and the energy storage power supply is electrically connected to the power-consumption-side plugging female end at the moment, so that the energy storage power supply can supply power to the power-consumption-side plugging female end. After the first switch leaves the first key position, the first insert is inserted into a first lock hole of the lock piece, and the lock piece is positioned at the first switch, so that the combination formed by the first insert and the lock piece can form structural interference on the first switch, and the first switch cannot be switched to the first key position. Even when the external power grid is used for recovering power supply and the like and the external power grid is required to be used for supplying power, a user forgets to disconnect the energy storage power supply from the power utilization side plug-in female end, and the first switch cannot be switched to the first key position due to the fact that the first plug-in component is inserted into the first lock hole, so that the user is reminded of disconnecting the energy storage power supply from the power utilization side plug-in female end, and the surge impact of the external power grid on the energy storage power supply is avoided.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without collision.

Referring to fig. 1, 2 and 4, an embodiment of the present application provides an off-grid power supply apparatus 100 and a switching device 200. The power-side plug female terminal 300 is an input terminal or an output terminal of the power grid 400 in the user. Users include households and production units. The power side plug female terminal 300 may include, in particular, a power distribution system or box and its connected receptacle 320. The distribution box connects the external power grid 500 and the internal power grid 400 of the user, and the off-grid power supply device 100 is used for connecting the power-side plug-in female terminal 300, so that electrical connection can be established with the internal power grid 400 of the user, and a safe power supply form for improving the equipment of the energy storage power supply 10 is provided. The switching device 200 is applied to the power side plug female terminal 300 to reduce the risk of damaging equipment connected to the customer's internal grid 400 by the external grid 500.

Referring to fig. 1, 2 and 5, an embodiment of the present application provides an off-grid power supply apparatus 100. The power-side socket female terminal 300 to which the off-grid power supply device 100 is connected is provided with a first switch 310. The first switch 310 has a first key position. When the first switch 310 is at the first key position, the power-side plugging female terminal 300 is communicated with the external network 500. The off-grid power supply apparatus 100 includes an energy storage power source 10, a first insert 20, and a lock 30. The stored energy power source 10 is configured to be electrically connectable with the receptacle 320 of the power side plug female terminal 300. The lock 30 is configured to be disposed at a location of the first switch 310. The lock 30 is provided with a first lock hole 301. The first latch lock hole 301 is configured to allow the first insert 20 to be inserted. The first insert 20 is configured such that when inserted into the first latch lock aperture 301, at least a portion of the combination of the first insert 20 and the latch 30 is in the path of the first switch 310 switching to the first key position.

In a case that the external power grid 500 fails to supply power to the power-use-side plugging female terminal 300 when the external power grid 500 fails, the first switch 310 leaves the first key position, and the energy storage power supply 10 is electrically connected to the power-use-side plugging female terminal 300 at this time, so that the energy storage power supply 10 can supply power to the power-use-side plugging female terminal 300. After the first switch 310 is separated from the first key position, the first insert 20 is inserted into the first lock hole 301 of the lock 30, and the lock 30 is located at the first switch 310, so that the combination formed by the first insert 20 and the lock 30 can form structural interference with the first switch 310, thereby making the first switch 310 unable to switch to the first key position. Even if the external power grid 500 is used for recovering power supply and the like and the external power grid 500 is required to be used for supplying power, a user forgets to disconnect the energy storage power supply 10 from the power-side plug-in female end 300, that is, the plug of the energy storage power supply 10 is not detached from the socket 320, the first switch 310 cannot be switched to the first key position because the first plug-in unit 20 is inserted into the first lock hole 301, so that the user is reminded of disconnecting the energy storage power supply 10 from the power-side plug-in female end 300, and the surge impact of the external power grid 500 on the energy storage power supply 10 is avoided.

Referring to fig. 1, 2 and 5, it will be appreciated that in some embodiments, the lock 30 is disposed on the first switch 310 at a location that does not indicate that the lock 30 and the first switch 310 must overlap. The position of the lock 30 relative to the first switch 310 may be such that at least a portion of the combination of the first insert 20 and the lock 30 interferes with the switching of the first switch 310 to the first key position.

It will be appreciated that in some embodiments, the first switch 310 may be provided with other key positions, which is not limited thereto. And when the first switch 310 is switched to the first key position, the external power grid 500 is communicated with the power-side plug female terminal 300, so as to allow the external power grid 500 to supply power to the power-side plug female terminal 300. However, if the external power grid 500 has a problem and does not have the power supply capability, the external power grid 500 still cannot supply power to the power-side plug female terminal 300 even if the first switch 310 is switched to the first key position. Typically, the external power grid 500 is a utility power grid.

Referring to fig. 1-3, in some embodiments, the stored energy power source 10 is provided with a second switch 101 and a first power lock hole 102. The second switch 101 has a second key position. When the second switch 101 is in the second key position, the energy storage power supply 10 is allowed to supply power to the power-side plug female terminal 300. The off-grid power supply apparatus 100 further comprises a second insert 40. The first power lock hole 102 is configured to allow the second insert 40 to be inserted. When the second insert 40 is inserted into the first power lock hole 102, the second switch 101 can be placed in the second key position.

After the energy storage power supply 10 is connected to the power-consumption-side plug-in female terminal 300, the second plug-in member 40 needs to be inserted into the second power supply lock hole 103, so that the second switch 101 is switched to the second key position, thereby allowing the energy storage power supply 10 to supply power to the power-consumption side. Therefore, a safety can be added in the aspect of avoiding the impact of the external power grid 500 on the energy storage power supply 10, and even if the first switch 310 is switched to the first key position, the second plug-in unit 40 does not switch the second switch 101 to the second key position, so that no electrical connection is established between the energy storage power supply 10 and the power-side plug-in female terminal 300, and the energy storage power supply 10 can be protected.

Referring to fig. 4-6, in some embodiments, the second switch 101 also has a third key position. When the second switch 101 is in the third key position, the energy storage power supply 10 is prohibited from supplying power to the power-side plug female terminal 300. The energy storage power supply 10 is further provided with a second power supply locking hole 103. The second power lock hole 103 is configured to allow the first insert 20 to be inserted. When the first insert 20 is inserted into the second power lock hole 103, the second switch 101 can be placed in the third key position.

By means of the first insert 20, a way is provided by which the second switch 101 can be switched away from the second key position. After the first insert 20 leaves the first locking member locking hole 301, the first switch 310 is in a state capable of being switched to the first key position. Therefore, the first plug-in member 20 leaving the first locking member locking hole 301 is inserted into the second power source locking hole 103 to switch the second switch 101 to the third key position, so as to ensure that the energy storage power source 10 cannot supply power to the power-using-side plug-in female terminal 300, so as to promote the protection of the energy storage power source 10. The first insert 20 can be inserted into the first lock hole 301 of the lock 30 or the second power supply lock hole 103 of the energy storage power supply 10, so as to prevent the external power grid 500 from supplying power to the power-using-side plug-in female end 300 or prevent the energy storage power supply 10 from supplying power to the power-using-side plug-in female end 300, and force a user to select the plug-in position through different plug-in positions of the same component, so that the stability of the energy storage power supply 10 is improved by using the entity limiting structure.

Referring to fig. 1, 3 and 4, it can be appreciated that in some embodiments, the second switch 101 may be understood as a safety switch of the energy storage power source 10, where the second switch 101 is in the third key position, the energy storage power source 10 may not necessarily be powered outwards, that is, the third key position is switched to be safe for turning on the energy storage power source 10; the second switch 101 is in the second key position, the energy storage power supply 10 is allowed to supply power outwards, but whether the energy storage power supply 10 can actually supply power outwards needs to be considered, whether the energy storage power supply 10 is electrically connected with the power-side plug-in female terminal 300 or other equipment to be powered, whether the energy storage power supply 10 has other switches and is in an on state, that is, whether the second key position is switched to be the insurance of closing the energy storage power supply 10.

It is understood that in other embodiments, the second insert 40, the first power lock aperture 102, the second power lock aperture 103, etc. may be omitted.

Referring to fig. 3 and 6, in some embodiments, the second switch 101 is a rocker switch. The rocker switch has a first end 1011 and a second end 1012. The first end 1011 is configured to move in response to an external force transmitted by the first insert 20 and to tilt the second end 1012 to place the second switch 101 in the third key position. The second end 1012 is configured to move in response to another external force transmitted by the second insert 40 and to tilt the first end 1011 to place the second switch 101 in the second key position.

If the first insert 20 is inserted into the second power lock hole 103, the second insert 40 is inserted into the first power lock hole 102 to press the second end 1012, and the first insert 20 can be sprung from the second power lock hole 103 by tilting the first end 1011. If the second insert 40 is inserted into the first power lock hole 102, the first insert 20 is inserted into the second power lock hole 103 to press the first end 1011, and the second insert 40 can be lifted from the first power lock hole 102 by tilting the second end 1012. The second switch 101 is a rocker switch, which can make the first insert 20 and the second insert 40 alternately control the second switch 101 to switch the key position, and can help the first insert 20 and the second insert 40 to be separated from the energy storage power supply 10.

Referring to fig. 3 and 6, in some embodiments, the first end 1011 is connected to the second end 1012 and is coaxially rotationally disposed such that the first end 1011 rotates in synchronization with the second end 1012.

In some embodiments, the configuration of the first insert 20 is configured such that after the first insert 20 is pressed against the first end 1011, the second end 1012 is pressed only by the second insert 40, causing the first end 1011 to push the first insert 20 at least partially out of the second power lock aperture 103, thereby enabling the first insert 20 to be pulled out of the second power lock aperture 103. The configuration of the second insert 40 is such that, after the second insert 40 has been pressed against the second end 1012, the first end 1011 can only be pressed by the first insert 20, such that the second end 1012 pushes the second insert 40 at least partially out of the second power lock aperture 103, thereby enabling the second insert 40 to be pulled out of the first power lock aperture 102. I.e., the first insert 20 is configured to be withdrawn from the second power supply aperture 103, and the second insert 40 is configured to be less likely to be withdrawn from the first power supply aperture 102. By way of exemplary illustration (not shown), when the first insert 20 is pressed against the first end 1011, the first insert 20 is fully submerged into the second power lock aperture 103; the second insert 40 is fully submerged within the first power lock aperture 102 when the second insert 40 is pressed against the second end 1012.

Referring to fig. 2, 4 and 5, in some embodiments, the lock 30 is further provided with a second lock aperture 302. The second latch lock aperture 302 is configured to allow insertion of the second insert 40. When the second insert 40 is inserted into the second lock hole 302, the second insert 40 does not stop the second switch 101 from being switched to the first key position.

When the second plug-in member 40 is not inserted into the first power supply lock hole 102, the second plug-in member 40 can be inserted into the second lock member lock hole 302 to store the second plug-in member 40, so that the second plug-in member 40 is prevented from being lost, and the second switch 101 is not affected to switch to the first key position, so as to allow the external power grid 500 to supply power to the power-side plug-in female terminal 300. It is understood that in other embodiments, the second locking member locking aperture 302 may be omitted.

Referring to fig. 2, 4, and 5, in some embodiments, the lock 30 is configured to lock the second insert 40 within the second lock aperture 302. The lock 30 can lock or unlock the second insert 40, so as to avoid the situation that the second insert 40 can be separated from the second lock hole 302 when the external electric network 500 supplies power to the power-use-side plug-in female end 300, and thus avoid the second insert 40 from being inserted into the first power supply lock hole 102. When the external power network 500 supplies power to the power-consumption-side plugging female terminal 300, the second switch 101 cannot be switched to the second key position, so that the energy storage power supply 10 is prevented from being electrically connected with the power-consumption-side plugging female terminal 300, and the stability of the energy storage power supply 10 is improved.

Referring to fig. 2, 4, and 5, in some embodiments, off-grid power supply apparatus 100 further includes a monitoring module (not shown). The monitoring module is configured to monitor the external power grid 500 for electricity. The monitoring module is in communication with the lock 30. And when the monitoring module monitors that the external electric net 500 is not powered, the locking member 30 unlocks the second insert 40 located in the second locking member locking hole 302. With the cooperation of the monitoring module, the lock 30 is able to lock or unlock the second insert 40 by a signal of the monitoring module. It is understood that the communication connection may be a wired connection or a wireless connection.

Referring to fig. 2, 4, and 5, in some embodiments, the monitoring module may be omitted, and lock 30 configured to electrically connect with external grid 500. When the external grid 500 is powered down, the lock 30 unlocks the second insert 40 located within the second lock aperture 302. The lock 30 is electrically connected to the external network 500 so that the lock 30 itself determines whether the second insert 40 needs to be locked.

Referring to fig. 1, 2 and 4, in some embodiments, the lock 30 is configured to lock the first insert 20 within the first lock aperture 301. The first insert 20 can be prevented from being separated from the first lock hole 301 when the energy storage power supply 10 supplies power to the power-side plug-in female end 300, so that the first insert 20 is prevented from being inserted into the second power lock hole 103. When the energy storage power supply 10 supplies power to the power-consumption-side plugging female terminal 300, the second switch 101 cannot be switched to the third key position, so that the energy storage power supply 10 is prevented from being disconnected and electrically connected with the power-consumption-side plugging female terminal, and the power supply stability of the energy storage power supply 10 is improved.

Referring to fig. 1, 2, 4 and 5, it will be appreciated that in some embodiments, the lock 30 may be provided with an electromagnetic locking structure (not shown), where the monitoring module determines that the external power grid 500 is powered, or the lock 30 is electrically connected to the external power grid 500, the electromagnetic locking structure cannot lock the first insert 20, and the electromagnetic locking structure can lock the second insert 40; when the monitoring module determines that the external power grid 500 is not powered, or the lock 30 cannot be electrically connected to the external power grid 500, the electromagnetic locking structure can lock the first insert 20, and the electromagnetic locking structure cannot lock the second insert 40.

In some embodiments, the first insert 20 and the second insert 40 are structurally different (not shown), such that the first insert 20 and the second insert 40 cannot be inserted at the same location of the lock 30 at the same time, nor at the same location of the stored energy power source 10.

The first insert 20 and the second insert 40 have different structures, so that the position error of the first insert 20 or the second insert 40 inserted into the lock 30 is avoided, and the position error of the first insert 20 or the second insert 40 inserted into the energy storage power supply 10 is avoided, the fool-proof effect is achieved, the possibility that the energy storage power supply 10 and the external power grid 500 are electrically connected with the power-side plug female end 300 at the same time is reduced, and the possibility that the energy storage power supply 10 and the external power grid 500 are not electrically connected with the power-side plug female end 300 is also reduced.

Referring to fig. 2, 3, 5 and 6, it can be appreciated that in some embodiments, the first insert 20 and the second insert 40 are keys of different configurations such that the first insert 20 can only be inserted into the first lock aperture 301 and the second power aperture 103, such that the second insert 40 can only be inserted into the second lock aperture 302 and the first power aperture 102. In other embodiments, the first insert 20 and the second insert 40 may also be pins, pin tabs, etc. of different configurations.

Referring to fig. 1, 2, 4 and 5, in some embodiments, the first switch 310 has a toggle 311. The locking member 30 has a limit space 303. The limiting space 303 communicates with the first locking member locking hole 301. The limit space 303 is configured to be able to accommodate a pulling portion 311 of the first switch 310 in the first key position. When the first insert 20 is inserted into the first lock hole 301, a portion of the first insert 20 occupies the limiting space 303.

Both the pulling portion 311 of the first switch 310 and the first insert 20 can enter the pulling portion 311 of the lock 30, so that the first switch 310 can be switched to the first key position, and the first insert 20 can be inserted into the first lock hole 301. However, under the limitation of the limiting space 303, the pulling portion 311 and the first insert 20 cannot enter the limiting space 303 at the same time, so that the first switch 310 is prevented from being switched to the first key position by the first insert 20, and the function of reminding a user when the user tries to change the key position of the first switch 310 is achieved, so that the stability of protecting the energy storage power supply 10 is improved.

In some embodiments, the lock 30 is also provided with a stop (not shown). The stop portion is movably arranged. The lock 30 has a stop position, and the stop is configured to be in a path of the first switch 310 switching to the first key position when moved to the stop position. When the first insert 20 is inserted into the first lock hole 301, the stopper moves to the stopper position. When the second insert 40 is inserted into the second lock hole 302, the stopper portion leaves the stopper position.

The first insert 20 and the second insert 40 respectively control the moving direction of the stop portion of the lock 30, so as to control whether the stop portion can prevent the first switch 310 from being switched to the first key position, so that the electric side plug-in female end 300 is respectively powered by the energy storage power supply 10 or the external power grid 500, the same stop portion is controlled by different components, and a user is forced to select which component is controlled, so that the stability of the energy storage power supply 10 is improved and protected by using the entity limiting structure.

Referring to fig. 1-3, the first switch 310 is moved away from the first key position and the second switch 101 is in the second key position; referring to fig. 4 to 6, the first switch 310 is in the first key position and the second switch 101 is in the third key position.

Referring to fig. 2, one embodiment of the present application provides a switching device 200. The switching device 200 is configured to be applied to the power side plug female terminal 300. The switching device 200 includes a first switch 310, a first insert 20, and a lock 30. The first switch 310 has a first key position. When the first switch 310 is in the first key position, the power-side plug female end 300 communicates with the external grid 500. The lock 30 is configured to be disposed at a location of the first switch 310. The lock 30 is provided with a first lock hole 301. The first latch lock hole 301 is configured to allow the first insert 20 to be inserted. The first insert 20 is configured such that when inserted into the first latch lock aperture 301, at least a portion of the combination of the first insert 20 and the latch 30 is in the path of the first switch 310 switching to the first key position. It will be appreciated that the first switch 310 of the switching device 200 is the first switch 310 described in any of the embodiments described above, the first insert 20 of the switching device 200 is the first insert 20 described in any of the embodiments described above, and the lock 30 of the switching device 200 is the lock 30 described in any of the embodiments described above.

In a case that the external power grid 500 fails to supply power to the power-side plugging female terminal 300 by using the external power grid 500, or in a case that a circuit is overhauled, the first switch 310 leaves the first key position, so that other devices can be conveniently accessed to the power-side plugging female terminal 300. After the first switch 310 is separated from the first key position, the first insert 20 is inserted into the first lock hole 301 of the lock 30, and the lock 30 is located at the first switch 310, so that the combination of the first insert 20 and the lock 30 can form structural interference with the first switch 310, thereby making the first switch 310 unable to switch to the first key position. Even when the external power grid 500 is restored to supply power, the first switch 310 cannot be switched to the first key position due to the first plug-in unit 20 being plugged into the first lock hole 301, so that danger is avoided.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application.

Claims (11)

1. The utility model provides a from net power supply equipment for connect the female end of pegging graft of electricity side, the female end of pegging graft of electricity side is equipped with the first switch that has first key position, first switch is in when the first key position, the female end of pegging graft of electricity side communicates its characterized in that with the outer electric network: the off-grid power supply device comprises:

an energy storage power supply configured to be electrically connected with the power-side plug female terminal,

a first insert; and

the lock piece is configured to be arranged at the position where the first switch is, and is provided with a first lock piece lock hole which is configured to allow the first insert piece to be inserted;

the first insert is configured such that when inserted into the first lock hole, at least a portion of the combination of the first insert and the lock is located in a path along which the first switch is switched to the first key position.

2. The off-grid power supply device of claim 1, wherein: the energy storage power supply is provided with a second switch and a first power supply lock hole, the second switch is provided with a second key position, and when the second switch is positioned at the second key position, the energy storage power supply is allowed to supply power to the power utilization side plug-in female end; the off-grid power supply apparatus further includes a second insert, the first power supply aperture configured to allow the second insert to be inserted;

when the second plug-in piece is inserted into the first power supply lock hole, the second switch can be located at the second key position.

3. The off-grid power supply device of claim 2, wherein: the second switch is also provided with a third key position, and when the second switch is positioned at the third key position, the energy storage power supply is forbidden to supply power to the power utilization side plug-in female terminal;

the energy storage power supply is also provided with a second power supply lock hole, the second power supply lock hole is configured to allow the first insert to be inserted, and when the first insert is inserted into the second power supply lock hole, the second switch can be located at the third key position.

4. An off-grid power supply device as claimed in claim 3, characterized in that: the second switch is a rocker switch, the rocker switch is provided with a first end and a second end, the first end is configured to be capable of moving by bearing an external force transmitted by the first insert and driving the second end to tilt, so that the second switch is in the third key position; the second end is configured to be movable in response to another external force transmitted by the second insert and to cause the first end to tilt up to place the second switch in the second key position.

5. The off-grid power supply device of claim 4, wherein: the lock is further provided with a second lock hole and a stop part, the second lock hole is configured to allow the second insert to be inserted, the stop part is movably arranged, the lock is provided with a stop position, and when the stop part is configured to move to the stop position, the stop part is positioned on a path of switching the first switch to the first key position;

when the first insert is inserted into the first lock hole, the stop part moves to the stop position; when the second insert is inserted into the second lock hole, the stop part is separated from the stop position.

6. The off-grid power supply device of claim 2, wherein: the lock is also provided with a second lock aperture configured to allow the second insert to be inserted,

when the second insert is inserted into the second lock hole, the second insert does not stop the second switch from being switched to the first key position.

7. The off-grid power supply device of claim 6, wherein: the off-grid power supply apparatus further includes a monitoring module configured to monitor whether the external grid is powered, the monitoring module in communication with the lock configured to lock the second insert within the second lock aperture,

and when the monitoring module monitors that the external electric network is not powered, the locking piece unlocks the second insert located in the second locking piece locking hole.

8. The off-grid power supply device of claim 6, wherein: the lock is configured to be electrically connected to the external grid and configured to lock the second insert within the second lock aperture, the lock unlocking the second insert within the second lock aperture when the external grid is unpowered.

9. The off-grid power supply device of claim 2, wherein: the first insert and the second insert are structurally different, so that the first insert and the second insert cannot be simultaneously inserted in the same position of the lock and the same position of the energy storage power supply.

10. Off-grid power supply equipment according to any one of claims 1 to 9, characterized in that: the first switch has a pulling portion, the lock has a limit space, the limit space is communicated with the first lock hole, the limit space is configured to accommodate the pulling portion of the first switch in a first key position,

when the first insert is inserted into the first lock hole, part of the first insert occupies the limiting space.

11. A switching device configured to be applied to a power-side plug female terminal, characterized in that: the switching device includes:

the first switch is provided with a first key position, and when the first switch is positioned at the first key position, the power utilization side plug-in female end is communicated with an external electric network;

a first insert; and

the lock piece is configured to be arranged at the position where the first switch is, and is provided with a first lock piece lock hole which is configured to allow the first insert piece to be inserted;

the first insert is configured such that when inserted into the first lock hole, at least a portion of the combination of the first insert and the lock is located in a path along which the first switch is switched to the first key position.