CN213636976U - Mobile distribution box - Google Patents
Mobile distribution box Download PDFInfo
- Publication number
- CN213636976U CN213636976U CN202021969251.8U CN202021969251U CN213636976U CN 213636976 U CN213636976 U CN 213636976U CN 202021969251 U CN202021969251 U CN 202021969251U CN 213636976 U CN213636976 U CN 213636976U
- Authority
- CN
- China
- Prior art keywords
- box
- wire
- mobile
- energy storage
- wiring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model provides a remove distribution case, include: the side wall of the transfer port box is provided with a wiring terminal, the wiring terminal is used for being connected with a power grid side and a load side respectively, and the wiring terminal is also used for being connected with a converter or a mobile energy storage power supply shelter; the wire storage box is arranged right below the switching port box, a standby wire is arranged in the wire storage box and used for enabling the converter or the mobile energy storage power supply shelter to be connected with the wiring terminal, and the standby wire is further used for enabling the power grid side and the load side to be connected with the wiring terminal. The beneficial effects of the utility model reside in that, through be provided with binding post on the switching interface box, and binding post is connected with electric wire netting side and load side respectively, still is connected with converter or mobile energy storage power shelter to can make equipment such as converter, mobile energy storage power shelter carry out nimble multimachine parallelly connected, thereby can reduce wire use quantity, resources are saved can reduce working strength moreover, improves work efficiency.
Description
Technical Field
The utility model relates to a distribution network technical field particularly, relates to a remove distribution case.
Background
At present, in recent years, the development of vehicle-mounted mobile energy storage systems is fast in China, and a plurality of research units and enterprises in China are all researching, in the prior art, in the scenes of emergency power supply of important conferences or large-scale activities, regular electric power overhaul, seasonal short-term peak load of medium and low voltage distribution networks, short-term summer peak load and the like, some research units and enterprises develop vehicle-mounted mobile energy storage power supply square cabins and achieve certain effects.
Meanwhile, the reliability of the vehicle-mounted mobile energy storage power supply square cabin can be improved by the related technology of flexible parallel operation of the multiple square cabins, and the size and the weight of the device are reduced while the modular redundancy design requirement is met. However, on the one hand, when the line on the side of the shelter connected to the power grid or the load side is short, the original line needs to be disassembled again and the long wire needs to be replaced, so that in emergency rescue or emergency power supply occasions, the working time is increased, and greater loss is caused. On the other hand, the conventional parallel connection scheme has certain disadvantages. When the shelter adopts a three-phase four-wire system, a middle wire and a grounding wire need to be additionally arranged. When the wires are connected in parallel, the number of the used wires is large, and the working time and the working load are increased.
Therefore, a new type of mobile distribution box is needed to solve the above problems.
Disclosure of Invention
In view of this, the utility model provides a remove distribution case aims at solving and removes distribution case and realizes the parallelly connected problem of equipment multimachine such as converter, mobile energy storage power shelter.
In one aspect, the utility model provides a remove distribution case, include: the side wall of the adapter port box is provided with a wiring terminal, the wiring terminal is used for being connected with a power grid side and a load side respectively, and the wiring terminal is also used for being connected with a converter or a mobile energy storage power supply shelter;
the wire storage box is arranged under the adapter box, a standby wire is arranged in the wire storage box and used for enabling the converter or the mobile energy storage power supply shelter to be connected with the wiring terminal, and the standby wire is further used for enabling the power grid side and the load side to be connected with the wiring terminal.
Furthermore, the switching port box and the wire storage box respectively comprise a top cover, the top cover is hinged to the switching port box and the wire storage box, the upper edges of the opening ends of the switching port box and the wire storage box are provided with sealing rubber rings, and the sealing rubber rings are used for aligning the switching port box and the wire storage box to be dustproof and waterproof.
Furthermore, a socket is arranged on the side wall of the adapter box.
Further, a groove is formed in a top cover of the wire storage box, and the lower side face of the adapter box is clamped in the groove.
Further, the middle part of the top cover is provided with a handle.
Furthermore, a wiring row and a ground wire cable are arranged in the adapter junction box, and the ground wire cable is connected with the wiring row.
Further, the wiring row is a five-hole USB outdoor waterproof socket.
Further, a partition plate is arranged inside the wire storage box.
Further, a tool is arranged in the wire storage box.
Furthermore, handles are arranged on two opposite side walls of the wire storage box.
Compared with the prior art, the beneficial effects of the utility model reside in that, through be provided with binding post on the switching interface box, and binding post is connected with electric wire netting side and load side respectively, still is connected with converter or mobile energy storage power shelter to can make equipment such as converter, mobile energy storage power shelter carry out nimble multimachine parallelly connected, thereby can reduce wire use quantity, resources are saved can reduce working strength moreover, improves work efficiency.
Further, through setting up the storage line case in order to place reserve wire, can take out reserve wire at any time and carry out binding post and converter, the connection of equipment such as portable energy storage power source shelter is used, use through using reserve wire as the extension wire, when the circuit of converter or portable energy storage power source shelter connection electric network side or load side is short, need not to disassemble original circuit again and change long wire, only need with reserve wire take out the use can, thereby in occasions such as emergency rescue or emergency power supply, reducible operating time, reduce the loss.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a first mobile distribution box according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a second mobile distribution box according to an embodiment of the present invention;
fig. 3 is a side view of a mobile distribution box according to an embodiment of the present invention;
fig. 4 is a front view of a mobile distribution box provided by an embodiment of the present invention;
fig. 5 is a schematic perspective view of a mobile distribution box according to an embodiment of the present invention;
fig. 6 is a top view of a mobile distribution box according to an embodiment of the present invention;
fig. 7 is a side view of an adapter box according to an embodiment of the present invention;
fig. 8 is a transverse cross-sectional view of an adapter box according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, the present embodiment proposes a mobile distribution box 2, one side of the mobile distribution box 2 is electrically connected to a current transformer or mobile energy storage power supply shelter 1, which is preferably connected by a wire; the other side of the mobile distribution box 2 is electrically connected to the network side 3 and the load side 4, respectively, also preferably by means of wires. Through setting up removal distribution box 2, can be fast effectual make converter or remove energy storage power shelter 1 and electric wire netting side 3 and load side 4 and link together to can improve work efficiency. And a grounding cable is arranged between the current transformer or the mobile energy storage power supply shelter 1 and the mobile wiring box 2.
Referring to fig. 2, a plurality of converters or mobile energy storage power source square cabins 1 can be arranged in the embodiment, and the number of the converters or mobile energy storage power source square cabins 1 can be set according to actual conditions. Specifically, one side of the mobile wiring box 2 is electrically connected with a plurality of current transformers or mobile energy storage power source cabins 1, the current transformers or the mobile energy storage power source cabins are preferably connected through conducting wires, and grounding cables are arranged between the current transformers or the mobile energy storage power source cabins 1 and the mobile wiring box 2. The other side of the mobile wiring box 2 is respectively and electrically connected with the power grid side 3 and the load side 4, and is also preferably connected through a conducting wire, and a plurality of converters or mobile energy storage power source cabins 1 are electrically connected with the mobile wiring box 2 in a parallel connection mode, and the converters or the mobile energy storage power source cabins can be flexibly connected with wires. Through setting up removal distribution case 2, can be quick effectual make a plurality of converter or remove energy storage power shelter 1 link together with electric wire netting side 3 and load side 4, not only the mode of connection is nimble, can also realize that equipment multimachine such as converter, removal energy storage power shelter is parallelly connected to reduce wire use quantity, resources are saved can reduce working strength moreover, improves work efficiency.
As shown in fig. 3 to 6, the mobile distribution box 2 in the above embodiment includes an adapter box 5 and a wire storage box 6, and the adapter box 5 and the wire storage box 6 are preferably square box structures, and both have cavities inside for accommodating components. Specifically, the switching port box 5 and the wire storage box 6 respectively comprise a top cover 8, the top cover 8 is hinged with the switching port box 5 and the wire storage box 6, the switching port box 5 and the wire storage box 6 are preferably openable and closable boxes, the top covers 8 capable of being turned over on the upper sides of the switching port box 5 and the wire storage box 6 are arranged on the upper portions of the switching port box and the wire storage box, and the switching port box 5 and the wire storage box 6 are closed into a closed box body by rotating the top covers 8. The top cover 8 is connected with the box body through a hinge 16.
Specifically, set up sealing rubber circle 17 between top cap 8 and the box of adaptor box 5 and storage line case 6, through setting up sealing rubber circle 17, when making top cap 8 closed, make it airtight with the box to carry out dustproof and waterproof to adaptor box 5 and storage line case 6.
In particular, the side wall of the junction box 5 is provided with connection terminals 7, the connection terminals 7 are respectively connected with the grid side 3 and the load side 4, in particular, the connection terminals 7 are used for being respectively connected with the grid side 3 and the load side 4, and are preferably connected together through wires. The wiring terminal 7 is further connected with the converter or the mobile energy storage power supply shelter 1, and particularly, the wiring terminal 7 is further connected with the converter or the mobile energy storage power supply shelter 1 through a conducting wire.
Specifically, the connection terminal 7 may be inserted through a sidewall of the adaptor box 5, so that the converter or the mobile energy storage power supply shelter 1 is connected with the connection terminal 7 through a wire.
Specifically, the connection terminal 7 includes an outlet terminal and an inlet terminal, which are respectively disposed on the side wall of the adaptor box 5. Specifically, when the converter or the mobile energy storage power supply shelter 1 is connected with the wiring terminal 7, the converter or the mobile energy storage power supply shelter 1 is connected with the wiring terminal 7 in a parallel connection mode. Binding post 7 includes incoming line terminal and outlet terminal, and a plurality of incoming line terminals and the even range setting of outlet terminal are at incoming line terminal and outlet terminal setting on the lateral wall of adapter box 5 or set up in the inside of adapter box 5.
Specifically, a wiring block 15 and a ground cable 14 are provided in the junction box 5, the wiring block 15 is laid on the inner bottom surface of the junction box 5, and the ground cable 14 is connected to the wiring block 15. The connecting terminals 7 are connected to the terminal blocks 15. The terminal block 15 is preferably a three-phase four-wire terminal block.
Specifically, a socket 18 is provided on a side wall of the junction box 5. And a socket 18 is arranged on the side wall of the box body of the adapter box 5 adjacent to the side wall of the terminal 7. The socket 18 is preferably a five-hole USB outdoor waterproof socket
Specifically, the wire storage box 6 is arranged below or on the side of the adapter box 5, a standby wire is arranged in the wire storage box 6 and used for connecting the converter or the mobile energy storage power supply shelter 1 with the wiring terminal 7, and the standby wire is used as an extension wire. That is, when converter or portable energy storage power supply shelter 1 is connected with binding post 7, if the distance is far away, can take reserve wire from the storage wire case 6 in and connect to can make converter or portable energy storage power supply shelter 1 and binding post 7 when the distance is far away, can also be quick connect, improve work efficiency.
Specifically, the wire storage box 6 can be arranged right below the adapter box 5, and the two are stacked together; it is also possible that the wire storage box 6 is arranged at the side of the junction box 5, i.e. arranged side by side.
Particularly, the side sets up a recess on the side of going up of wire storage box 6, namely sets up the recess on wire storage box 6's top cap 8, and the size of recess equals with the size of adaptor box 5 to be convenient for adaptor box 5 card is established on wire storage box 6.
Specifically, the top covers 8 of the interface box 5 and the cord storage box 6 are provided with handles 13, and the top covers 8 are moved by the handles 13. Meanwhile, handles 13 are arranged on two opposite side walls of the wire storage box 6, and the handles 13 are used for carrying the wire storage box 6 through the two opposite side walls of the wire storage box 6.
It can be seen that the wiring terminal 7 is arranged on the switching port box 5, and the wiring terminal 7 is respectively connected with the power grid side 3 and the load side 4 and is also connected with the current transformer or the mobile energy storage power supply shelter 1, so that the current transformer, the mobile energy storage power supply shelter and other equipment can be flexibly connected in parallel with multiple machines, the number of used wires can be reduced, resources are saved, the working strength can be reduced, and the working efficiency is improved. Through setting up storage line case 6 in order to place reserve wire, can take out reserve wire at any time and carry out binding post 7 and converter, the connection of equipment such as portable energy storage power source shelter is used, use as the extension wire through using reserve wire, when 1 connecting power net side 3 or the circuit of load side 4 of converter or portable energy storage power source shelter is short, need not to disassemble original circuit again and change long wire, only need with reserve wire take out the use can, thereby in occasions such as emergency rescue or emergency power supply, reducible operating time, reduce the loss.
In particular, the wire storage box 6 is also provided with tools for use in connection or maintenance. Specifically, a partition board is arranged in the wire storage box 6, the partition board divides the inner space of the wire storage box 6 into two parts, one part is used for placing the standby wire, and the other part is used for placing the tool.
With continued reference to fig. 1 and 2, in the above embodiment, the adapter box 5 may be installed between the grid side 3 and the converter or mobile energy storage power supply shelter 1. A transfer box 5 may also be installed between the load side 4 and the converter or mobile energy storage power supply shelter 1. When the length of the cable 21 between the power grid side 3 and the converter or the mobile energy storage power supply shelter 1 is not enough, the cable 21 is disassembled and then is connected to the incoming line wiring terminal 7 of the mobile wiring box 2 to form a cable 22. The cable 23 is taken out of the wire storage box 6 and connected between the outgoing wire connecting terminal 7 of the mobile wiring box 2 and the current transformer or the mobile energy storage power supply square cabin 1 to prolong the wiring.
When the length of the cable 24 between the load side 4 and the converter or the mobile energy storage power supply shelter 1 is not enough, the cable 24 is disassembled and then is connected to the incoming line wiring terminal 7 of the mobile wiring box 2 to become a cable 25. The cable 23 is taken out of the wire storage box 6 and connected between the outgoing wire connecting terminal 7 of the mobile wiring box 2 and the current transformer or the mobile energy storage power supply square cabin 1 to prolong the wiring.
Two or more converters or mobile energy storage power supply cabins 1 can be used in parallel by using one mobile wiring box 2. The cable 22 led out from the power grid side 3 is connected to the incoming line connecting terminal 7 of the mobile wiring box 2, the cable 23 led out from the incoming line connecting terminal 7 of the mobile wiring box 2 is connected to the converter or the mobile energy storage power supply shelter 1, and the cable 25 led out from the outgoing line connecting terminal 7 of the mobile wiring box 2 is connected to the load side 4. Can realize the parallel operation of a plurality of current transformers or a plurality of square cabins
It can be seen that this embodiment can be used for extension wires by providing spare wires in the mobile distribution box 2. The mobile wiring box 2 can also realize the flexible parallel connection of a plurality of machines of equipment such as a current transformer, a mobile energy storage power supply shelter and the like.
In another preferred implementation mode based on the above embodiment, when the above embodiment is implemented, because the line and the connection terminal 7 are arranged in the adapter box 5, a certain amount of heat is generated when the line operates, and because the adapter box 5 is a closed box body, when the heat in the adapter box 5 is accumulated, the temperature is continuously increased, so that safety accidents such as damage and fire of the internal line are caused, and the normal operation of the line is affected.
Referring to fig. 7 and 8, the opposite two side walls of the adaptor box 5 are provided with two ventilation holes 9, two arc-shaped partition plates 10 are arranged between the two ventilation holes 9, the two arc-shaped partition plates 10 are oppositely arranged side by side, and the ventilation holes 9 are located between the two arc-shaped partition plates 10, so that a ventilation air channel is formed through the arrangement of the two arc-shaped partition plates 10, and air conveniently enters and exits from the ventilation holes 9 and circulates between the two arc-shaped partition plates 10, so that the inside of the adaptor box 5 is cooled.
Specifically, the connecting terminal 7 and the connecting line are arranged between the two arc-shaped partition plates 10, and a heat radiation fan 12 is laid on the ventilation hole 9 to ventilate and radiate the connecting terminal 7 and the connecting line. The heat dissipation fan 12 is arranged to drive air flow, so that air circulation between the two arc-shaped partition plates 10 is facilitated, and the heat dissipation efficiency is improved.
Specifically, in the above embodiment, a processing unit 19 is provided in the adaptor box 5, and the processing unit 19 controls the heat radiation fan 12. The cooling fan 12 includes a drive motor, and the processing unit 19 is connected to the drive motor so as to control it. The processing unit 19 is preferably an MCU, a single chip microcomputer, or a plc system, etc.
Specifically, the processing unit 19 is connected to the heat dissipation fan 12, and the processing unit 19 is configured to control the rotation speed of the heat dissipation fan 12 according to equation (1):
where V is the rotational speed of the cooling fan 12 and q isvD is the outer diameter of the cooling fan 12, D is the hub diameter of the cooling fan 12, η is the volumetric efficiency of the cooling fan 12, a is the sectional area of the cooling fan 12, α is the maximum thickness of the blades of the cooling fan 12, b is the chord length of the blades of the cooling fan 12, t△The temperature outside the junction box 5 is denoted by t, which is the temperature between the two arc-shaped partition plates 10.
It can be seen that the rotating speed of the heat dissipation fan 12 is determined according to the air temperature outside the adaptor box 5 and the temperature data between the two arc-shaped partition plates 10, so that the rotating speed of the heat dissipation fan 12 can be effectively controlled, the heat dissipation fan can effectively dissipate the heat of the space between the two arc-shaped partition plates 10, the consumption of electric energy is reduced, the energy is saved, and the heat dissipation efficiency is greatly improved.
Specifically, the arc-shaped partition plates 10 keep a preset radian, the arc tops of the two arc-shaped partition plates 10 are oppositely arranged, and the radian of the arc-shaped partition plates 10 is determined according to the formula (2):
wherein n is the radian of the arc-shaped partition board 10, L is the length of the arc-shaped partition board 10, r is the radius of the arc-shaped partition board 10, and s△Is the air flow rate between the two arc-shaped partition plates 10 when the heat dissipation fan 12 is turned off, s is the air flow rate between the two arc-shaped partition plates 10 when the heat dissipation fan 12 is turned on, t1Is the temperature t between the two arc-shaped partition boards 10 when the cooling fan 12 is turned on0Is the preset working temperature between the two arc-shaped partition plates 10.
It can be seen that the radian of the arc-shaped partition plate 10 is determined according to the air flow speed ratio when the cooling fan 12 is turned off and turned on, and the temperature between the two arc-shaped partition plates 10 and the preset working temperature ratio when the cooling fan 12 is turned on, so that the radian of the arc-shaped partition plate 10 can be effectively set, the air between the two arc-shaped partition plates 10 can effectively flow, and the heat dissipation efficiency in the junction box 5 is improved.
Specifically, a temperature sensor 20 is disposed between the two arc-shaped partition plates 10, and is used for acquiring temperature data between the two arc-shaped partition plates 10 in real time. The temperature sensor 20 is electrically connected to the processing unit 19 for real-time transmission of data.
Specifically, a screen 11 is laid on the vent hole 9, the mesh size of the screen 11 is smaller than the size of dust particles, and dust is prevented by the screen 11.
Specifically, the screen 11 is disposed between the vent hole 9 and the heat dissipation fan 12. One cooling fan 12 may be disposed at one of the ventilation holes 9, or two cooling fans may be disposed at two ventilation holes 9.
It is understood that, in the above embodiment, when the connection terminal 7 is disposed on the side wall of the junction box 5, the vent hole 9 and the position where the connection terminal 7 is disposed are set away from each other.
It can be seen that, in the above embodiment, by providing the vent hole 9 and the heat dissipation fan 12, heat dissipation inside the adaptor box 5 can be effectively performed, and safety can be improved.
Particularly, the box bodies and the bottom covers of the adapter port box 5 and the wire storage box 6 are provided with handles 13, so that the adapter port box 5 and the wire storage box 6 can be conveniently carried, and the top cover 8 can be conveniently opened and closed.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention.
Claims (10)
1. A mobile distribution box, comprising: the side wall of the adapter port box is provided with a wiring terminal, the wiring terminal is used for being connected with a power grid side and a load side respectively, and the wiring terminal is also used for being connected with a converter or a mobile energy storage power supply shelter;
the wire storage box is arranged under the adapter box, a standby wire is arranged in the wire storage box and used for enabling the converter or the mobile energy storage power supply shelter to be connected with the wiring terminal, and the standby wire is further used for enabling the power grid side and the load side to be connected with the wiring terminal.
2. The mobile wiring box of claim 1, wherein the junction box and the wire storage box each comprise a top cover, the top covers are hinged to the junction box and the wire storage box, and sealing rubber rings are arranged on upper edges of open ends of the junction box and the wire storage box and used for preventing dust and water of the junction box and the wire storage box.
3. The mobile distribution box of claim 1, wherein a receptacle is disposed on a side wall of the patch box.
4. The mobile distribution box of claim 1, wherein a recess is formed in a top cover of the cable storage box, and a lower side of the junction box is engaged in the recess.
5. The mobile distribution box of claim 2, wherein a handle is provided at a middle portion of the top cover.
6. A mobile distribution box according to claim 1, wherein a terminal block and a ground cable are provided in the junction box, the ground cable being connected to the terminal block.
7. The mobile wiring box of claim 6, wherein the termination block is a five-hole USB outdoor waterproof receptacle.
8. The mobile wiring box of claim 1, wherein a partition is disposed inside the wire storage box.
9. The mobile wiring box of claim 1, wherein a tool is disposed within the wire storage box.
10. A mobile distribution box as claimed in claim 1, wherein handles are provided on opposite side walls of the storage box.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021969251.8U CN213636976U (en) | 2020-09-10 | 2020-09-10 | Mobile distribution box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021969251.8U CN213636976U (en) | 2020-09-10 | 2020-09-10 | Mobile distribution box |
Publications (1)
Publication Number | Publication Date |
---|---|
CN213636976U true CN213636976U (en) | 2021-07-06 |
Family
ID=76648522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202021969251.8U Active CN213636976U (en) | 2020-09-10 | 2020-09-10 | Mobile distribution box |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN213636976U (en) |
-
2020
- 2020-09-10 CN CN202021969251.8U patent/CN213636976U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103280712B (en) | Cabinet for outdoor photovoltaic power generation equipment | |
CN213636976U (en) | Mobile distribution box | |
CN112134231A (en) | Mobile distribution box | |
CN211579328U (en) | Power equipment with good heat dissipation effect | |
WO2024169105A1 (en) | Battery box body capable of being stacked in multiple layers, and system | |
CN218299907U (en) | Energy storage battery cluster | |
CN217217304U (en) | Power supply device, formation cabinet and capacity grading cabinet | |
CN213339998U (en) | Mutual inductor with waterproof performance | |
CN114122988B (en) | Outdoor centralized control cabinet of transformer substation | |
CN214411990U (en) | Power distribution cabinet convenient for equipment heat dissipation | |
CN212876309U (en) | DCS control cabinet for pneumatic ash conveying system | |
CN211650626U (en) | Efficient intelligent heat dissipation device for building machine room | |
CN211478462U (en) | Online monitor for power grid impedance | |
CN209963598U (en) | Power transformation equipment with moisture-proof structure for power communication | |
CN221226461U (en) | Energy storage container | |
CN212366729U (en) | Computer network junction box | |
CN110661476A (en) | Photovoltaic energy storage micro power station | |
CN218633210U (en) | Cable distribution box convenient to maintain | |
CN210490160U (en) | Electric power box that security performance is high | |
CN217283786U (en) | Safety explosion-proof mining AC frequency conversion cabinet | |
CN218828692U (en) | Energy storage power supply capable of automatically tracking peak and valley | |
CN216773884U (en) | Intelligent low-voltage comprehensive power distribution cabinet | |
CN215955702U (en) | Line body connecting structure for grounding device of power distribution cabinet | |
CN207069933U (en) | A kind of hanging inverter | |
CN212676408U (en) | Group heat insulation storage battery |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |