CN218514091U - Power supply system - Google Patents
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- CN218514091U CN218514091U CN202122389763.8U CN202122389763U CN218514091U CN 218514091 U CN218514091 U CN 218514091U CN 202122389763 U CN202122389763 U CN 202122389763U CN 218514091 U CN218514091 U CN 218514091U
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Abstract
The utility model discloses a power supply system, including first power module and N-1 power source, wherein, N-1 power source sets up on the preceding N-1 load of assembly line, and first power module is through the power source connected with first load, directly is the power supply of first load to be the power supply of ith +1 load through the ith power source on the ith load. Therefore, the power supply of N loads on the assembly line can be realized by using one first power supply module, the use of the power supply modules and the power supply circuit is reduced, and the power supply circuit of the assembly line is more neat.
Description
Technical Field
The utility model relates to a power supply field especially relates to a power supply system.
Background
The power supply mode for each load in the assembly line in the prior art is as follows: each load is individually powered, i.e. one power module is provided for each load to power the corresponding load. At the moment, when the whole assembly line works normally, more power supply modules and power supply circuits are needed, so that the assembly line is not finished.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power supply system uses a first power module can realize the power supply of a N load on the assembly line, reduces the use of power module and power supply line, makes the power supply line of assembly line more orderly.
In order to solve the technical problem, the utility model provides a power supply system, which is applied to a production line, wherein the production line comprises N loads, and the power supply system comprises a first power module and N-1 power interfaces;
the N-1 power interfaces are respectively arranged on the first N-1 loads on the assembly line in a one-to-one correspondence mode, the first power module is respectively connected with a power end of the first load on the assembly line and a power interface arranged on the first load, the ith power interface on the ith module is connected with a power end of the (i + 1) th module, N & gti & gt & lt 1 & gt, and N and i are integers;
the first power supply module is used for directly supplying power to the first load and supplying power to the (i + 1) th load through the i power supply interfaces.
Preferably, the first and second liquid crystal display panels are,
the first power supply module comprises a power supply module and a control circuit, wherein the input end of the control circuit is connected with the output end of the power supply module, and the output end of the control circuit is connected with the power supply end of the first load;
the power supply module is used for providing power supply;
the control circuit is used for controlling the self-conduction when receiving a power-on signal so that the power supply module supplies power for the N loads, and controlling the self-cut-off when receiving a power-off signal so that the power supply module stops supplying power for the N loads.
Preferably, the control circuit comprises a power-on switch, a power-off switch, a first coil corresponding to the first relay, a first contact and a second contact;
a first end of the power-off switch is connected with an output positive end of the power supply module and a first end of the second contact respectively, a second end of the power-off switch is connected with a first end of the power-on switch and a first end of the first contact respectively, a second end of the power-on switch is connected with a second end of the first contact and a first end of the first coil respectively, a second end of the first coil is connected with an output negative end of the power supply module, and a second end of the second contact is connected with a power supply end of the first load;
the power-on switch is used for being closed when a power-on signal is received;
the power-off switch is used for being switched off when receiving a power-off signal;
the first coil is used for obtaining electricity when the power-on switch and the power-off switch are both closed or the power-off switch and the first contact are both closed;
the first contact is used for being closed after the first coil is electrified;
the second contact is for closing when the first coil is energized.
Preferably, the control circuit further comprises a protection device;
the protection device is arranged between the output end of the power supply module and the power supply end of the first load and is used for being disconnected when the output current of the power supply module exceeds the safe current or the output voltage of the power supply module exceeds the safe voltage.
Preferably, the power supply further comprises N power supply conversion modules;
the N power conversion modules correspond to the N loads one by one, the input ends of the power conversion modules are connected with the output end of the first power module, and the output ends of the power conversion modules are connected with the power supply ends of the corresponding loads;
the power supply conversion module is used for converting the output voltage of the first power supply module according to the requirement of the load corresponding to the power supply conversion module to supply power to the corresponding load.
Preferably, N switches are also included;
the N switches are in one-to-one correspondence with the N loads, the first switch is arranged between the output end of the first power supply module and the input end of the power supply conversion module corresponding to the first load, and the (i + 1) th switch is arranged between the power supply end of the (i + 1) th load and the input end of the power supply conversion module corresponding to the (i + 1) th load, and is used for powering on the (i + 1) th load when the (i + 1) th load is closed and powering off the (i + 1) th load when the (i + 1) th load is disconnected. Preferably, the output end of the first power supply module includes M power lines connected in parallel, N loads are divided into M groups, the M power lines correspond to the M groups of loads one to one, and M is an integer;
the first power supply module is specifically configured to supply power to the M groups of loads through the M power lines, respectively.
Preferably, the second power supply module includes Z power lines connected in parallel, the load corresponding to each second power supply module is divided into Z groups, and the Z groups are in one-to-one correspondence with the Z power lines, where Z is an integer greater than 1;
the second power module is specifically configured to supply power to the Z groups of loads through the Z power lines, respectively.
Preferably, the first power module and the second power module are both cascade power boxes.
The application provides a power supply system, which comprises a first power supply module and N-1 power supply interfaces, wherein the N-1 power supply interfaces are arranged on the front N-1 loads of a production line, the first power supply module is connected with the power supply interfaces of the first loads, directly supplies power to the first loads, and supplies power to the (i + 1) th loads through the ith power supply interface on the ith load. Therefore, the power supply of N loads on the assembly line can be realized by using one first power supply module, the use of the power supply modules and the power supply circuit is reduced, and the power supply circuit of the assembly line is more neat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 is a block diagram of a power supply system provided by the present invention;
fig. 2 is a block diagram of another power supply system provided by the present invention;
fig. 3 is a schematic diagram of a control circuit provided by the present invention;
fig. 4 is a schematic structural diagram of the inside of a load according to the present invention;
fig. 5 is a schematic circuit diagram of a cascade power box provided by the present invention.
Detailed Description
The core of the utility model is to provide a power supply system uses a first power module can realize the power supply of a N load on the assembly line, reduces the use of power module and power supply line, makes the power supply line of assembly line more orderly.
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a block diagram of a power supply system according to the present invention, the power supply system is applied to a production line, the production line includes N loads, and the power supply system includes a first power module 1 and N-1 power interfaces 2;
the N-1 power interfaces 2 are respectively arranged on the first N-1 loads on the production line in a one-to-one correspondence mode, the first power module 1 is respectively connected with a power end of the first load on the production line and the power interface 2 arranged on the first load, the ith power interface 2 on the ith module is connected with a power end of the (i + 1) th module, N & gti is more than or equal to 1, and N and i are integers;
the first power module 1 is used for directly supplying power to a first load and supplying power to an (i + 1) th load through i power interfaces 2.
Considering that each module needs to be independently powered in the traditional assembly line, the number of the required power modules and sockets is large, and the power line of each load leaks outwards, so that the assembly line is not attractive.
In order to solve the technical problems, the design idea of the power supply system is to reduce the number of power supply modules for supplying power to each load on the assembly line, so that the number of sockets and the number of power supply lines are reduced as much as possible.
Based on this, the power supply system in the application includes a first power module 1 and N-1 power interfaces 2, where N-1 power interfaces 2 are disposed on the first N-1 loads one by one, the first power module 1 is connected to a power end of the first load to directly supply power to the first load, and supplies power to the (i + 1) th load through the ith power interface 2 on the ith load.
It should be noted that, when only one first power module 1 is arranged on the pipeline, the power output by the first power module 1 should be greater than or equal to the power required by the N loads.
In addition, the specific implementation manner of the power interface 2 may be, but is not limited to, in the form of an outlet, that is, the power end of the i +1 th load is connected to a reserved outlet on the i-th load. In addition, the socket can be hidden in the load, at the moment, the power line can be seen only at the power supply end of the first load of the assembly line correspondingly, namely at the output end of the first power module 1, and the rest of the power line cannot be seen, so that the power supply line on the assembly line is tidier.
Therefore, the power supply of N loads on the assembly line can be realized by using one first power module 1, the use of power modules and power supply circuits is reduced, and the power supply circuits of the assembly line are more orderly.
On the basis of the above-described embodiment:
referring to fig. 2, fig. 2 is a block diagram of another power supply system provided by the present invention.
As a preferred embodiment of the method of the present invention,
the first power supply module comprises a power supply module 11 and a control circuit 12, wherein the input end of the control circuit 12 is connected with the output end of the power supply module 11, and the output end of the control circuit 12 is connected with the power supply end of the first load;
the power supply module 11 is used for supplying power;
the control circuit 12 is configured to control itself to be turned on when receiving the power-on signal, so that the power supply module 11 supplies power to the N loads, and to control itself to be turned off when receiving the power-off signal, so that the power supply module 11 stops supplying power to the N loads
In order to realize the control of power-up and power-down of the assembly line, in the present application, the first power module 1 includes, in addition to the power module 11 for providing a power supply, a control circuit 12 is further disposed between the output end of the power module 11 and the power end of the first load, and is configured to be turned on when receiving a power-up signal, so that the power module 11 supplies power to each load by itself; and when the power-off signal is received, the power-off control is stopped so that the power supply module 11 stops supplying power to each load, and the power-off control of the assembly line is realized.
In summary, the control circuit 12 in this embodiment can reliably control the power-on and power-off of each load on the pipeline, and the specific implementation manner of the control circuit 12 is not particularly limited in this embodiment.
Referring to fig. 3, fig. 3 is a schematic diagram of a control circuit according to the present invention.
As a preferred embodiment, the control circuit 12 includes an upper switch SB1, a lower switch SB0, a first coil KM1 corresponding to the first relay, a first contact K1, and a second contact K2;
a first end of the power-off switch SB0 is connected with an output positive end of the power supply module 11 and a first end of the second contact K2 respectively, a second end of the power-off switch SB0 is connected with a first end of the power-on switch SB1 and a first end of the first contact K1 respectively, a second end of the power-on switch SB1 is connected with a second end of the first contact K1 and a first end of the first coil KM1 respectively, a second end of the first coil KM1 is connected with an output negative end of the power supply module 11, and a second end of the second contact K2 is connected with a power supply end of a first load;
the power-on switch SB1 is used for being closed when a power-on signal is received;
the power-off switch SB0 is used for being switched off when receiving a power-off signal;
the first coil KM1 is used for being powered when the upper electric switch SB1 and the power-off switch SB0 are both closed or the power-off switch SB0 and the first contact K1 are both closed;
the first contact K1 is used for being closed after the first coil KM1 is electrified;
the second contact K2 is adapted to be closed when the first coil KM1 is energized.
The embodiment aims to provide a specific implementation manner of the control circuit 12, wherein when a power-on signal is received, the power-on switch SB1 closes the first coil KM1 to obtain power, the corresponding first contact K1 and the second contact K2 are closed, the first coil KM1 is continuously obtained power, self-locking is completed, and power-on of each load on the pipeline is realized. When receiving the outage signal, the power-off switch SB0 is disconnected, the corresponding first coil KM1 is powered off, the first contact K1 and the second contact K2 are both disconnected, and the power-off of each load on the assembly line is completed.
The power-on switch SB1 and the power-off switch SB0 in this embodiment may be, but are not limited to, buttons. The terminal block in fig. 3 is an electronic component for circuit connection.
It can be seen that power-on switch SB1, power-off switch SB0, first coil KM1 corresponding to the first relay, first contact K1 and second contact K2 in this application can realize the function of controlling the power-on and power-off of the pipeline in control circuit 12, and the working mode of the relay is simple and reliable.
As a preferred embodiment, the control circuit 12 further comprises a protection device QF;
the protection device QF is disposed between the output terminal of the power supply module 11 and the power supply terminal of the first load, and is configured to be turned off when the output current of the power supply module 11 exceeds the safety current or the output voltage of the power supply module 11 exceeds the safety voltage.
In order to increase the reliability of the power supply system, the present application also provides a protection device QF in the control circuit 12 for switching off when the output current of the power supply module 11 exceeds a safety current or the output voltage of the power supply module 11 exceeds a safety voltage. The protection circuit plays a role in overcurrent, overvoltage and leakage protection in a power supply system.
The protection device QF may be, but is not limited to, a leakage protector, such as a circuit breaker with leakage, overload, overvoltage, and overcurrent protection functions.
Therefore, the protection device QF in the embodiment can stop power supply when abnormal conditions such as overvoltage or overcurrent occur in the power supply system, and the reliability and safety of the power supply system are improved.
Referring to fig. 4, fig. 4 is a schematic view of a structure inside a load according to the present invention.
As a preferred embodiment, the system further comprises N power conversion modules;
the N power conversion modules correspond to the N loads one by one, the input ends of the power conversion modules are connected with one end of the switch, and the output ends of the power conversion modules are connected with the power supply ends of the corresponding loads;
the power conversion module is used for converting the output voltage of the first power module 1 according to the requirement of the load corresponding to the power conversion module to supply power to the corresponding load.
Considering that the required operating voltage of each load may be different, a power conversion module is correspondingly provided for each load to convert the output voltage of the first power module 1 into the required operating voltage of the load so as to supply power to the corresponding load.
The power conversion module may be, but is not limited to, a 24V switching power supply.
Therefore, the power conversion module in the present application can enable the first power module 1 to supply power to loads with various operating voltages.
As a preferred embodiment, the system further comprises N switches;
the N switches are in one-to-one correspondence with the N loads, the first switch is arranged between the output end of the first power supply module and the input end of the power supply conversion module corresponding to the first load, the (i + 1) th switch is arranged between the power supply end of the (i + 1) th load and the input end of the power supply conversion module corresponding to the (i + 1) th load, and is used for powering on the (i + 1) th load when the (i + 1) th load is closed and powering off the (i + 1) th load when the (i + 1) th load is disconnected.
In order to enable each module to be controlled independently when the first power module 1 is used for supplying power in a unified mode, a switch is further arranged between a power supply end of the (i + 1) th load and an input end of a power conversion module corresponding to the (i + 1) th load, when the switch is closed, the corresponding (i + 1) th load can be powered on, when the switch is disconnected, the corresponding (i + 1) th load is separated from a production line, so that independent control over each load is achieved, when a certain load needs to be subjected to power-off maintenance, the corresponding switch can be directly controlled to be disconnected, so that the load needing to be maintained is separated from the production line, and further operation of other modules can not be influenced.
The switch in the present application may be, but is not limited to, a boat-type switch.
In addition, a filter can be arranged between the ship-type switch and the 24V switching power supply to avoid interference at the last power interface 2, so that the reliability of load operation is ensured.
In summary, the present embodiment can realize individual control of each load, so that when a certain load is abnormal, normal operation of the whole pipeline is not affected as much as possible.
As a preferred embodiment, the output end of the first power module 1 includes M power lines connected in parallel, N loads are divided into M groups, the M power lines correspond to the M groups of loads one to one, and M is an integer;
the first power module 1 is specifically configured to supply power to M groups of loads through M power lines.
The present embodiment aims to provide a specific implementation manner for supplying power to N loads by a first power module 1, specifically, the output of the first power module 1 may be set as a plurality of parallel power lines, and then N loads on a pipeline are grouped, so that each power line supplies power to a corresponding group of loads, where the sum of powers output by M parallel power lines is equal to the total power output by the first power module 1, where the number of M may be greater than N or less than N, and the M parallel power lines may supply power to N loads on the pipeline or supply power to multiple pipelines, which is not limited herein.
Further, specifically, the number of power supply lines connected in parallel in the present application may be, but is not limited to, 3.
For example, as shown in fig. 2, if the output current of the first power module 1 is 30A, the output terminal of the first power module 1 may be set to three power lines, where the current on each power line is 10A, at this time, the first power module 1 may provide power for three pipelines, or divide the loads on the pipelines into three groups, and respectively provide power for the three groups of loads. For example, when there are 9 loads on the pipeline, each power line supplies power to 3 loads respectively.
The first power module 1 may be, but is not limited to, a cascade power box, and the total power of the cascade power box is close to the air switch on the wall.
As a preferred embodiment, the power supply further includes K second power supply modules, where K is an integer smaller than N and not smaller than 1;
the N loads are divided into K +1 groups, and the K second power modules correspond to the rear K groups of loads one by one;
the first power module 1 is specifically configured to supply power to a first group of loads;
each second power supply module is used for supplying power to the load corresponding to the second power supply module.
When the number of loads cascaded by the assembly line is too large, the power borne by the total input line is insufficient, the line is heated due to the fact that the power is out of limit, and potential safety hazards exist.
In order to solve the technical problem, in the present application, the N loads on the pipeline are supplied in a segmented manner, that is, the N loads are divided into K +1 groups, wherein the last K groups are respectively provided with a second power module to realize corresponding power supply. The control circuit 12 may be disposed between the first group of loads and the first power module, and the other groups are powered by a second power module, where the second power module may be but is not limited to a cascade power box, and a contactor coil of the cascade power box is controlled by the control circuit 12 of the previous group, so that all loads are controlled to be powered on and powered off by the control circuit 12 connected to the first group.
Specifically, please refer to fig. 5, fig. 5 is a schematic circuit diagram of a cascade power box according to the present invention. The left lower part is a control part of the cascade power supply box, specifically, the KM2 coil is connected with a power supply interface on a certain load in the loads supplied with power by the first power supply module, (i is not greater than the number of the loads supplied with power by the first power supply module), here, when the first power supply module is controlled by the control circuit to supply power to the loads of the first group, the ith power supply interface in the first group is electrified, the KM2 coil is electrified, and the corresponding main contact of the KM2 alternating current contactor is closed at this time, so that the cascade power supply box (the second power supply module) supplies power to the corresponding load. Similarly, when the first power module is controlled by the control circuit to stop supplying power to the loads of the first group, at this time, the ith power interface in the first group is powered down, the KM2 coil is powered down, and the corresponding KM2 AC contactor main contact is closed, so that the cascade power supply stops supplying power to the corresponding loads, and the power failure of the corresponding loads is realized.
Therefore, all loads can be controlled by the control circuit in the first power module through the structure of the cascade power box, so that the uniform power-on and power-off of the whole assembly line are realized, and the reliability and convenience of control are improved.
In addition, the power input of the cascade power box corresponding to the second power module supplies power independently, and is not cascaded with the first power module 1 in the previous group, so that the power borne by the total input line is prevented from exceeding the standard, and the length of the production line can be extended as much as possible.
In addition, the output end of the second power supply module may also include Z power lines, for example, the second power supply module is a cascade power supply box, and when Z is 3, since each cascade power supply box provides 3 power lines, K cascade power supply boxes are added according to the rule, at most, more than 3 × K pipelines can be added, thereby realizing that the pipeline length is extended as long as possible without changing the line diameter of the internal circuit and the element power.
It should be noted that, in the present specification, relational terms such as first and second, and the like are used only for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A power supply system is applied to a production line, wherein the production line comprises N loads, and the power supply system comprises a first power supply module and N-1 power supply interfaces;
the N-1 power interfaces are respectively arranged on the first N-1 loads on the assembly line in a one-to-one correspondence mode, the first power module is respectively connected with a power end of the first load on the assembly line and a power interface arranged on the first load, the ith power interface on the ith module is connected with a power end of the (i + 1) th module, N & gti & gt & lt 1 & gt, and N and i are integers;
the first power supply module is used for directly supplying power to the first load and supplying power to the (i + 1) th load through the i power supply interfaces.
2. The power supply system of claim 1, wherein the first power module comprises a power module and a control circuit, an input terminal of the control circuit is connected to an output terminal of the power module, and an output terminal of the control circuit is connected to a power terminal of the first load;
the power supply module is used for providing power supply;
the control circuit is used for controlling self-conduction when receiving a power-on signal so that the power supply module supplies power for the N loads, and controlling self-cut-off when receiving a power-off signal so that the power supply module stops supplying power for the N loads.
3. The power supply system of claim 2, wherein the control circuit comprises a power-on switch, a power-off switch, a first coil corresponding to the first relay, a first contact, and a second contact;
a first end of the power-off switch is connected with an output positive end of the power supply module and a first end of the second contact respectively, a second end of the power-off switch is connected with a first end of the power-on switch and a first end of the first contact respectively, a second end of the power-on switch is connected with a second end of the first contact and a first end of the first coil respectively, a second end of the first coil is connected with an output negative end of the power supply module, and a second end of the second contact is connected with a power supply end of the first load;
the power-on switch is used for being closed when a power-on signal is received;
the power-off switch is used for being switched off when receiving a power-off signal;
the first coil is used for obtaining electricity when the power-on switch and the power-off switch are both closed or the power-off switch and the first contact are both closed;
the first contact is used for being closed after the first coil is electrified;
the second contact is for closing when the first coil is energized.
4. The power supply system of claim 2 wherein said control circuit further comprises a protection device;
the protection device is arranged between the output end of the power supply module and the power supply end of the first load and used for being disconnected when the output current of the power supply module exceeds the safe current or the output voltage of the power supply module exceeds the safe voltage.
5. The power supply system of claim 1, further comprising N power conversion modules;
the N power conversion modules correspond to the N loads one by one, the input ends of the power conversion modules are connected with the output end of the first power module, and the output ends of the power conversion modules are connected with the power supply ends of the corresponding loads;
the power supply conversion module is used for converting the output voltage of the first power supply module according to the requirement of the load corresponding to the power supply conversion module to supply power to the corresponding load.
6. The power supply system of claim 5, further comprising N switches;
the N switches are in one-to-one correspondence with the N loads, the first switch is arranged between the output end of the first power module and the input end of the power conversion module corresponding to the first load, the (i + 1) th switch is arranged between the power end of the (i + 1) th load and the input end of the power conversion module corresponding to the (i + 1) th load, and is used for powering on the (i + 1) th load when the (i + 1) th switch is closed and powering off the (i + 1) th load when the (i + 1) th switch is disconnected.
7. The power supply system according to any one of claims 1-6, wherein the output terminal of the first power module comprises M parallel power lines, N loads are divided into M groups, M power lines correspond to M groups of loads one by one, and M is an integer; the first power module is specifically configured to supply power to the M groups of loads through the M power lines, respectively.
8. The power supply system according to any one of claims 1 to 6, further comprising K second power supply modules, K being an integer less than N and not less than 1;
the N loads are divided into K +1 groups, and the K second power supply modules correspond to the K rear groups of loads one by one;
the first power supply module is specifically used for supplying power to a first group of loads;
each second power supply module is used for supplying power to the loads corresponding to the second power supply module.
9. The power supply system of claim 8 wherein said second power modules include Z power lines connected in parallel, the loads corresponding to each of said second power modules are grouped into Z groups, and are in one-to-one correspondence with Z of said power lines, Z being an integer greater than 1;
the second power module is specifically configured to supply power to the Z groups of loads through the Z power lines, respectively.
10. The power system of claim 9, wherein the first power module and the second power module are cascaded power boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389763.8U CN218514091U (en) | 2021-09-29 | 2021-09-29 | Power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389763.8U CN218514091U (en) | 2021-09-29 | 2021-09-29 | Power supply system |
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| CN218514091U true CN218514091U (en) | 2023-02-21 |
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| CN202122389763.8U Active CN218514091U (en) | 2021-09-29 | 2021-09-29 | Power supply system |
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2021
- 2021-09-29 CN CN202122389763.8U patent/CN218514091U/en active Active
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