High-voltage box

Abstract

The utility model discloses a high-voltage box which comprises a box body and components installed in the box body, and the box body comprises a bottom shell, a front panel, a top cover and an installation plate which is fixed in the bottom shell and used for bearing the components. A high-voltage wiring output terminal group, a load switch QF1, a micro-breaking switch and a high-voltage wiring input terminal group are sequentially arranged on the front panel, an external signal port group is arranged above the high-voltage wiring output terminal group, and a network port is arranged above the high-voltage wiring input terminal group; the mounting plate is divided into a control area at the front end and a control power supply area at the rear end, and the control area is divided into a high-voltage control area and a low-voltage control area; the high-voltage control area is provided with a main positive contactor, a main negative contactor, a fuse and a current sensor; the low-voltage control area is provided with an energy storage controller; the control power supply area is provided with a first switching power supply and a second switching power supply; the first switching power supply is arranged on the mounting plate, a mounting cover covers the first switching power supply, and the second switching power supply is arranged on the mounting cover.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a high-voltage box. Background Art

[0002] An energy storage cabinet is a device capable of storing electric energy, usually composed of a battery pack, an inverter, a control unit, etc. It can store electric energy and release it when needed for power supply, and is usually used to provide backup power and stabilize the grid voltage to achieve peak shaving and valley filling.

[0003] Currently, the control device of the energy storage cabinet is connected to the energy storage converter PCS and the battery system to control the charging of the battery system. The control part of the energy storage cabinet is deployed in a box body. Since the box body for installing control components is arranged above the battery system, the volume and weight of one box body are large, which is not conducive to installation. In addition, since the battery system is two groups of battery packs arranged vertically in sequence, and the control components are centrally deployed in one box body, they cannot be correspondingly arranged with the two groups of battery packs to maintain balance. Therefore, it is necessary to split and deploy the control components in two box bodies (a high-voltage box and a control box). How to reasonably split and deploy them without affecting the control performance, facilitating the connection between the box body and external components, and facilitating control operations is very important. Therefore, it is necessary to provide a high-voltage box. Summary of the Utility Model

[0004] The utility model aims at the problems and deficiencies existing in the prior art and provides a new type of high-voltage box.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a high-voltage box, which includes a box body and components installed on the box body. The box body includes a bottom shell, a front panel, a top cover, and a mounting plate fixed in the bottom shell for carrying components.

[0007] On the front panel, a high-voltage wiring output terminal group, a load switch QF1, a miniature circuit breaker, and a high-voltage wiring input terminal group are sequentially arranged from left to right. An external signal port group is arranged above the high-voltage wiring output terminal group, and a network port is arranged above the high-voltage wiring input terminal group.

[0008] The mounting plate is divided into a front control area and a rear control power area by a horizontally arranged wire groove. The control area is divided into a high-voltage control area and a low-voltage control area by a vertically arranged wire groove. The low-voltage control area is arranged on the side close to the external signal port group.

[0009] The high-voltage wiring input terminal group includes input connectors B+ and B-, the high-voltage wiring output terminal group includes output connectors P+ and P-, and the high-voltage control area is provided with a main positive contactor, a main negative contactor, a fuse, and a current sensor; the input connector B+, the fuse, the load switch QF1, the normally open contact of the main positive contactor, and the output connector P+ are connected in sequence through a copper busbar; the input connector B-, the load switch, the current sensor, the normally open contact of the main negative contactor, and the output connector P- are connected in sequence through a copper busbar;

[0010] The low-voltage control area is provided with an energy storage controller, and the energy storage controller is vertically arranged through a mounting bracket;

[0011] The control power supply area is provided with a first switching power supply and a second switching power supply; the first switching power supply is provided on a mounting plate, a mounting cover is provided above the first switching power supply, and the second switching power supply is provided on the mounting cover.

[0012] Preferably, the copper bars are staggered in space so that a safe distance is maintained between the copper bars.

[0013] Preferably, insulating mounting posts are provided at both ends of the fuse, and the copper busbar is connected to the fuse via the insulating mounting posts.

[0014] Preferably, the front panel is also provided with indicator lights, including an operation indicator light and a fault indicator light, and the operation indicator light and the fault indicator light are respectively arranged on both sides above the load switch QF1; the front panel is also provided with an emergency start button AN, and the emergency start button AN is arranged near the network port.

[0015] Preferably, the first switching power supply is an AC / DC switching power supply, the second switching power supply is a DC / DC switching power supply, and the low-voltage control area is provided with three diodes; the positive poles of the two DC output terminals of the first switching power supply are respectively connected to two of the diodes, and the positive pole of one DC output terminal of the second switching power supply is connected to one of the diodes.

[0016] Preferably, the control power supply area is further provided with an intermediate relay group and a connection terminal group.

[0017] Preferably, the front panel and the top cover are detachably connected to the bottom shell, and the left side plate and the right side plate of the bottom shell are both provided with air inlets.

[0018] The operating handle of the load switch QF1 is installed on the front panel, and the main body of the load switch QF1 is correspondingly installed in the high-voltage control area.

[0019] Preferably, both ends of the front panel extend outward respectively to form connecting parts that protrude from the left and right side plates of the bottom case, and connection grooves are provided on the connecting parts.

[0020] Preferably, handles are respectively provided at both ends of the front panel near the [specific position not provided in the original].

[0021] The positive and progressive effects of the present utility model are as follows:

[0022] The high-voltage box provided by the present utility model includes a box body and components installed in the box body. The box body includes a bottom case, a front panel, a top cover, and a mounting plate fixed in the bottom case for carrying components; on the front panel, a high-voltage wiring output terminal group, a load switch QF1, a miniature circuit breaker QF4, and a high-voltage wiring input terminal group are arranged in sequence from left to right. An external signal port group GAM and GBM are provided above the high-voltage wiring output terminal group, and a network port COM is provided above the high-voltage wiring input terminal group; the high-voltage wiring terminal group, the switches that need to be manually operated, and the ports connected to the outside are deployed on the same panel in sequence, arranged in an orderly and centralized manner, which is convenient for installation and subsequent use and operation; the mounting plate is divided into a front control area and a rear control power area by a horizontally arranged wire groove, and the control area is divided into a high-voltage control area and a low-voltage control area by a vertically arranged wire groove; the low-voltage control area is arranged on one side close to the external signal port group; the high-voltage control area is provided with a main positive contactor, a main negative contactor, a fuse, and a current sensor; the low-voltage control area is provided with an energy storage controller, and the energy storage controller is vertically arranged through a mounting bracket; the control power area is provided with a first switching power supply and a second switching power supply; the components are installed corresponding to the function division areas, reducing signal interference, having more stable performance, and being convenient for installation and operation.

[0023] Furthermore, both ends of the front panel of the present utility model extend outward respectively to form connecting parts that protrude from the left and right side plates of the bottom case. Connection grooves are provided on the connecting parts. When installed in an energy storage cabinet, the connecting parts are connected to the energy storage cabinet body through the connection grooves, and the box body does not need to be grounded separately, improving the installation efficiency. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the high-voltage box according to an embodiment of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the front panel of the high-voltage box according to an embodiment of the present utility model

[0026] Figure 3 It is a schematic structural diagram of the high-voltage box removing the bottom case and the top cover according to an embodiment of the present utility model;

[0027] Figure 4 It is a schematic structural diagram of another angle of the high-voltage box removing the bottom case and the top cover according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic structural diagram of another angle of the high-voltage box according to an embodiment of the present utility model.

[0029] In the figure:

[0030] Box body; 11 - Bottom shell; 12 - Front panel; 121 - Connection part; 122 - Connection groove; 123 - Handle; 13 - Top cover; 14 - Mounting plate; 141 - Wire groove; 142 - High-voltage control area; 143 - Low-voltage control area; 144 - Control power supply area;

[0031] 21 - High-voltage wiring output terminal group; 22 - Load switch QF1; 23 - Miniature circuit breaker QF4; 24 - High-voltage wiring input terminal; 25 - Network port; 26 - External signal port group; 27 - Main positive contactor; 28 - Main negative contactor; 29 - Fuse; 30 - Current sensor; 31 - Copper busbar; 32 - Energy storage controller; 33 - Operation indicator light; 34 - Fault indicator light; 35 - First switching power supply; 36 - Second switching power supply; 37 - Mounting cover; 38 - Diode; 39 - Insulating mounting column; 40 - Emergency start button AN; 41 - Mounting bracket; 42 - Intermediate relay group. Specific embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Please refer to Figures 1 - 5This embodiment provides a high-voltage box, comprising a box body 1 and components mounted on the box body 1. The box body 1 comprises a bottom shell 11, a front panel 12, a top cover 13, and a mounting plate 14 fixed to the bottom shell 11 for supporting the components. The front panel 12 is provided with, from left to right, a high-voltage wiring output terminal group 21, a load switch QF122, a micro-breaker QF4 23, and a high-voltage wiring input terminal group 24. Above the high-voltage wiring output terminal group 21 is an external signal port group 26, including external signal ports GAM and GBM. Above the high-voltage wiring input terminal group 24 is a network port 25, designated COM. The mounting plate 14 is divided into a front control area and a rear control power supply area 144 by a horizontally arranged wire duct 141. The control area is divided into a high-voltage control area 142 and a low-voltage control area 143 by a vertically arranged wire duct 141. The low-voltage control area 143 is located on the side adjacent to the external signal port group 26. The high-voltage input terminal group 24 includes input connectors B+ and B-, and the high-voltage output terminal group 21 includes output connectors P+ and P-. The high-voltage control area 142 is equipped with a main positive contactor 27, a main negative contactor 28, a fuse 29, and a current sensor 30. The input connector B+, fuse 29, load switch QF1 22, the normally open contact of the main positive contactor 27, and the output connector P+ are connected in sequence via a copper busbar 31. The input connector B-, load switch QF1 22, current sensor 30, the normally open contact of the main negative contactor 28, and the output connector P- are connected in sequence via a copper busbar 31. The low-voltage control area 143 is equipped with an energy storage controller 32, which is vertically mounted on a mounting bracket 41. The control power supply area 144 is provided with a first switching power supply 35 and a second switching power supply 36. The first switching power supply 35 is mounted on the mounting plate 14. A mounting cover 37 is provided above the first switching power supply 35, and the second switching power supply 36 is mounted on the mounting cover 37. The first switching power supply 35 is stacked to save space. In some embodiments, the copper busbars 31 are spatially staggered to maintain a safe distance between the copper busbars 31. In some embodiments, insulating mounting posts 39 are provided at both ends of the fuse 29. The copper busbars 31 are connected to the fuse 29 via the insulating mounting posts 39, providing a more secure and reliable connection. In some embodiments, the front panel 12 is also provided with indicator lights, including an operating indicator light 33 and a fault indicator light 34. The operating indicator light 33 and the fault indicator light 34 are respectively provided on either side above the load switch QF1 22. The front panel 12 is also provided with an emergency start button AN 40, which is located near the network port 25. In some embodiments, the first switching power supply 35 is an AC / DC switching power supply, the second switching power supply 36 is a DC / DC switching power supply, and the low-voltage control area 143 is provided with three diodes 38; the positive poles of the two DC output terminals of the first switching power supply 35 are respectively connected to two of the diodes 38, and the positive pole of one DC output terminal of the second switching power supply 36 is connected to one of the diodes 38.In some embodiments, an intermediate relay group 42 and a terminal block group (not shown) are further provided in the control power supply area 144. In some embodiments, the front panel 12 and the top cover 13 are detachably connected to the bottom case 11, and air inlets are provided on the left and right side plates of the bottom case 11. In some embodiments, the operating handle of the load switch QF1 22 is installed on the front panel, and the main body of the load switch QF1 22 is correspondingly installed in the high-voltage control area 142. In some embodiments, both ends of the front panel 12 extend outward respectively to form a connecting portion 121 that protrudes from the left and right side plates of the bottom case 11. The connecting portion 121 is provided with a connecting groove 122. When installed in the energy storage cabinet, the connecting portion 121 is connected to the energy storage cabinet body through the connecting groove 122, and the box body 1 does not need to be grounded separately, improving the installation efficiency. In some embodiments, handles 123 are respectively provided at both ends of the front panel 12 near the two ends, facilitating the installation of the front panel 12. In this embodiment, the focus is on the installation layout of the components on the high-voltage box body. As for the electrical connection relationships of the various components of the high-voltage box, they have been recorded in the utility model patent with the application number 2024113194386 and the name of "A Control System for an Energy Storage Cabinet", and those not recorded are known to those skilled in the art according to the prior art or common general knowledge. In summary, the high-voltage box provided by the present utility model includes a box body 1 and components installed on the box body 1. The box body 1 includes a bottom case 11, a front panel 12, a top cover 13, and a mounting plate 14 fixed in the bottom case 11 for carrying components; a high-voltage wiring output terminal group 21, a load switch QF1 22, a miniature circuit breaker QF4 23, and a high-voltage wiring input terminal group 24 are sequentially arranged on the front panel 12 from left to right. An external signal port group 26 is provided above the high-voltage wiring output terminal group 21, and a network port 25 is provided above the high-voltage wiring input terminal group 24; the high-voltage wiring terminal group, the switches that need to be manually operated, and the externally connected ports are sequentially deployed on the same panel, centrally arranged in an orderly manner, facilitating installation and subsequent use operations; the mounting plate 14 is divided into a front control area and a rear control power supply area 144 by a horizontally arranged wire groove 141. The control area is divided into a high-voltage control area 142 and a low-voltage control area 143 by a vertically arranged wire groove 141; the high-voltage control area 142 is provided with a main positive contactor 27, a main negative contactor 28, a fuse 29, and a current sensor 30; the low-voltage control area 143 is provided with an energy storage controller 32; the control power supply area 144 is provided with a first switching power supply 35 and a second switching power supply 36; the components are installed corresponding to the functional partition areas, reducing signal interference, having more stable performance, and facilitating installation operations. Further, both ends of the front panel 12 of the present utility model extend outward respectively to form a connecting portion 121 that protrudes from the left and right side plates of the bottom case 11. The connecting portion 121 is provided with a connecting groove 122. When installed in the energy storage cabinet, the connecting portion 121 is connected to the energy storage cabinet body through the connecting groove 122, and the box body 1 does not need to be grounded separately, improving the installation efficiency.Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present utility model is defined by the appended claims. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A high-voltage box, characterized in that, The box comprises a box body and components installed in the box body, wherein the box body comprises a bottom shell, a front panel, a top cover and a mounting plate fixed in the bottom shell for carrying the components; The front panel is provided with a high-voltage wiring output terminal group, a load switch QF1, a micro-breaker and a high-voltage wiring input terminal group from left to right. An external signal port group is provided above the high-voltage wiring output terminal group, and a network port is provided above the high-voltage wiring input terminal group. The mounting plate is divided into a front-end control area and a rear-end control power area by a transversely arranged wire trough, and the control area is divided into a high-voltage control area and a low-voltage control area by a longitudinally arranged wire trough; the low-voltage control area is arranged on a side close to the external signal port group; The high-voltage wiring input terminal group includes input connectors B+ and B-, the high-voltage wiring output terminal group includes output connectors P+ and P-, and the high-voltage control area is provided with a main positive contactor, a main negative contactor, a fuse, and a current sensor; the input connector B+, the fuse, the load switch QF1, the normally open contact of the main positive contactor, and the output connector P+ are connected in sequence through a copper busbar; the input connector B-, the load switch, the current sensor, the normally open contact of the main negative contactor, and the output connector P- are connected in sequence through a copper busbar; The low-voltage control area is provided with an energy storage controller, and the energy storage controller is vertically arranged through a mounting bracket; The control power supply area is provided with a first switching power supply and a second switching power supply; the first switching power supply is provided on a mounting plate, a mounting cover is provided above the first switching power supply, and the second switching power supply is provided on the mounting cover.

2. The high-voltage box according to claim 1, characterized in that, The copper bars are staggered in space so as to maintain a safe distance between the copper bars.

3. The high-voltage box according to claim 1, characterized in that, Insulating mounting posts are provided at both ends of the fuse, and the copper busbar is connected to the fuse via the insulating mounting posts.

4. The high-voltage box according to claim 1, characterized in that, The front panel is also provided with indicator lights, including an operation indicator light and a fault indicator light, which are respectively arranged on both sides above the load switch QF1; the front panel is also provided with an emergency start button AN, which is arranged near the network port.

5. The high-voltage box according to claim 1, characterized in that, The first switching power supply is an AC / DC switching power supply, the second switching power supply is a DC / DC switching power supply, and the low-voltage control area is provided with three diodes; the positive poles of the two DC output terminals of the first switching power supply are respectively connected to two of the diodes, and the positive pole of one DC output terminal of the second switching power supply is connected to one of the diodes.

6. The high-voltage box according to claim 1, characterized in that, The control power supply area is also provided with an intermediate relay group and a connection terminal group.

7. The high-voltage box according to claim 1, wherein, The front panel and the top cover are detachably connected to the bottom shell, and the left side plate and the right side plate of the bottom shell are both provided with air inlets.

8. The high-voltage box according to claim 1, characterized in that, The operating handle of the load switch QF1 is installed on the front panel, and the main body of the load switch QF1 is correspondingly installed in the high-voltage control area.

9. The high-voltage box according to claim 1, characterized in that Both ends of the front panel extend outwards respectively to form connecting portions extending out of the left and right panels of the bottom shell, and the connecting portions are provided with connecting grooves.

10. The high-voltage box according to claim 1, characterized in that, The front panel is provided with handles at both ends thereof.

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