Multifunctional high-voltage box and energy storage system

Abstract

The utility model belongs to the technical field of power equipment, and particularly relates to a multifunctional high-voltage box and an energy storage system. Comprising a box body and further comprises a device assembly, the device assembly comprises a bottom plate and components, and the bottom plate is detachably connected with the bottom of the inner side of the box body; an electromagnetic valve bracket is mounted on the bottom plate; the circuit breaker bracket is detachably connected with the bottom of the inner side of the box body; the plurality of components are detachably mounted on the bottom plate, the electromagnetic valve bracket and the circuit breaker bracket respectively; the installation distance of each component is Z, the limit value of the insulation distance is X, and Z is larger than or equal to X and smaller than or equal to 1.1 X; the components are installed on the bottom plate and the support, so that installation and maintenance of the components are facilitated, the creepage distance and the electrical distance of the components are considered, the distance between the components is controlled, and utilization of the internal space of the high-voltage box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power equipment, and particularly relates to a multifunctional high-voltage box and an energy storage system. Background Art

[0002] The high-voltage box is an indispensable component in the battery energy storage system. It can not only control the charging and discharging of the battery system and the overvoltage and overcurrent protection, and play a role in ensuring the power transmission of the energy storage system, but also detect circuit faults of the entire battery cluster at any time, and can also monitor the temperature of the battery cells in the entire battery cluster in real time and control the battery valve switch.

[0003] Various components are integrated inside the high-voltage box, which is mostly a plug-in frame structure, that is, it consists of an outer box, internal structural parts and related components. A high-voltage box is connected to multiple battery packs, so its functional requirements are high. At the same time, in order to increase the capacity of the energy storage prefabricated cabin, the structural volume of the high-voltage box is required to be high. At present, the functions of the main high-voltage boxes are not complete, and the volume is large, and the space utilization rate is low. Utility Model Content

[0004] In view of the above problems, the utility model proposes a multifunctional high-voltage box, comprising a box body and a device assembly, wherein the device assembly comprises a base plate and components, wherein the base plate is detachably connected to the inner bottom of the box body; an electromagnetic valve bracket is mounted on the base plate; a circuit breaker bracket is detachably connected to the inner bottom of the box body; a plurality of components are detachably mounted on the base plate, the electromagnetic valve bracket and the circuit breaker bracket; the installation distance of each component is Z, the limit value of the insulation distance is X, and X≤Z≤1.1X.

[0005] Furthermore, the box body includes an outer box and a cover plate, and the cover plate is detachably connected to the upper end of the outer box; the cover plate and the outer box are connected by a fixed connecting piece.

[0006] Furthermore, the bottom plate and the circuit breaker bracket are threadedly connected to the outer box; a fixing hole is provided at the bottom of the outer box; and the bottom plate and the circuit breaker bracket are connected to the fixing hole via a fixing connector.

[0007] Furthermore, a card slot is provided on the outer box, and a card plate is provided on the cover plate.

[0008] Furthermore, a heat dissipation groove is provided on the side of the outer box.

[0009] Furthermore, the heat dissipation groove is in a truncated cone shape, the cross section of the truncated cone faces the inner side of the outer box, and the bottom surface of the truncated cone faces the outer side of the outer box.

[0010] Furthermore, an insulating plate is provided on the inner wall of the outer box.

[0011] Furthermore, the outer wall of the outer box is provided with a panel assembly, and the panel assembly is connected to the interior of the outer box.

[0012] Furthermore, a multifunctional plug-in connector and a power line plug-in connector are connected to the panel assembly; the multifunctional plug-in connector and the power line plug-in connector are respectively connected to one or more of the components.

[0013] A multifunctional energy storage system comprises any of the multifunctional high-voltage boxes described above.

[0014] The present invention provides a base plate, a circuit breaker bracket and a solenoid valve bracket, and installs components on the base plate and the bracket, thereby facilitating the installation and maintenance of the components, and taking into account the creepage distance and electrical distance of the components, controlling the distance between each component, and improving the utilization of the internal space of the high-voltage box.

[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A top view of the present invention is shown.

[0018] Figure 2 An exploded view of the present invention is shown.

[0019] In the figure, 1. outer box; 2. device assembly; 21. bottom plate; 24. components; 22. solenoid valve bracket; 23. circuit breaker bracket; 3. panel assembly; 31. multi-function plug-in connector; 32. power line plug-in connector; 4. cover plate; 5. insulation plate; 11. fixing hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model embodiment provides a multifunctional high-voltage box, referring to Figure 1 , including a box body and a device assembly 2, the device assembly 2 includes a bottom plate 21 and components 24, the bottom plate 21 is detachably connected to the bottom inner side of the box body; an electromagnetic valve bracket 22 is installed on the bottom plate 21; a circuit breaker bracket 23 is detachably connected to the bottom inner side of the box body; a plurality of components 24 are detachably installed on the bottom plate 21, the electromagnetic valve bracket 22 and the circuit breaker bracket 23.

[0022] The installation distance of each of the above components 24 is Z, and the limit value of the insulation distance is X, then X≤Z≤1.1X.

[0023] The box body comprises an outer box 1 and a cover plate 4, and the cover plate 4 is detachably connected to the upper end of the outer box 1.

[0024] The bottom plate 21 and the circuit breaker bracket 23 are threadedly connected to the outer box 1; a fixing hole 11 is provided at the bottom of the outer box 1; the bottom plate 21 and the circuit breaker bracket 23 are connected to the fixing hole 11 through a fixing connector.

[0025] The cover plate 4 is connected to the outer box 1 via a fixed connection piece.

[0026] In the specific implementation, during the installation of the high-voltage box, the components 24 are first installed on the bottom plate 21 and the solenoid valve bracket 22 in sequence, and the circuit breaker is installed on the circuit breaker bracket 23; then the bottom plate 21 is installed to the bottom of the outer box 1, and then the circuit breaker bracket 23 is installed on the bottom of the outer box 1; the installation of the bottom plate 21 and the installation of the circuit breaker bracket 23 are not in order, and the installation of the bottom plate 21 and the circuit breaker bracket 23 is connected to the fixing hole 11 through the bottom plate 21 and the circuit breaker bracket 23 by fixing parts such as screws, so that the bottom plate 21 and the circuit breaker bracket 23 are installed at the bottom of the outer box 1; wherein each component on the bottom plate 21 The installation position of the component 24, as well as the installation positions of the solenoid valve bracket 22 and the circuit breaker bracket 23, all take into account the creepage distance and electrical distance of the component 24, and control the distance range of each component 24, where the limit value of the insulation distance is x, and the distance range between each component 24 is Z, then x≤z≤1.1x, while ensuring that the high-voltage box can be used normally and safely, the utilization rate of the internal space of the high-voltage box is improved; then the cover plate 4 is covered on the outer box 1, and then the cover plate 4 is fixed to the upper end of the outer box 1 by a fixing connector, and the fixing connector can be a metal part such as a screw to ensure the stability of the high-voltage box;

[0027] When a component 24 fails and needs to be repaired, the cover body and the outer box 1 are first disassembled; then the failed component 24 can be removed, repaired or replaced with a new component 24 outside the box, and then the normal component 24 is installed inside the box; the entire bottom plate 21 can also be removed, and then the component 24 is repaired or replaced, and then the bottom plate 21 is installed inside the box; the circuit breaker bracket 23 is separated from the bottom plate 21, and the circuit breaker bracket 23 does not need to be removed when the component 24 on the bottom plate 21 needs to be replaced; if the circuit breaker fails, the circuit breaker bracket 23 is removed alone, because the circuit breaker is not a vulnerable device and it is more troublesome to disassemble.

[0028] The utility model arranges a base plate 21, a circuit breaker bracket 23 and a solenoid valve bracket 22, and installs components 24 on the base plate 21 and the bracket, thereby facilitating the installation and maintenance of the components 24, and taking into account the creepage distance and electrical distance of the components 24, controlling the distance between each component 24, and improving the utilization of the internal space of the high-voltage box; the utility model has a small volume and a high space utilization rate, and can realize functions such as confluence, monitoring, control, communication and protection.

[0029] In one embodiment, reference Figure 2 A card slot is provided on the outer box 1, and a card plate is provided on the cover plate 4.

[0030] A heat dissipation groove is provided on the side of the outer box 1 . The heat dissipation groove is in a truncated cone shape, with the cross section of the truncated cone facing the inner side of the outer box 1 and the bottom surface of the truncated cone facing the outer side of the outer box 1 .

[0031] An insulating plate 5 is provided on the inner wall of the outer box 1 .

[0032] In a specific implementation, a card slot is opened at the upper end of the outer box 1, and a card plate is arranged on the cover plate 4. When the cover plate 4 is connected to the outer box 1, the card plate is first inserted into the card slot to achieve preliminary fixation and positioning of the cover plate 4 and the outer box 1, and then the cover plate 4 and the outer box 1 are fixed by fixing connectors such as screws; wherein a heat dissipation groove starts on the side of the outer box 1, wherein the shape of the heat dissipation groove may be a truncated cone, and the cross section of the truncated cone is located on the inner side of the outer box 1, and the bottom surface of the truncated cone is located on the outer side of the outer box 1, so that when dust accumulates in the heat dissipation groove, part of the dust can flow out to the outside of the outer box 1 along the inclination angle of the heat dissipation groove, which can avoid clogging of the heat dissipation groove; and an insulating plate 5 is attached to the bottom and side walls of the outer box 1, which can well achieve the insulation effect between the outer box 1 and the components 24, thereby reducing the possibility of the high-voltage box being charged.

[0033] In one embodiment, reference Figure 2 The outer wall of the outer box 1 is provided with a panel assembly 3, and the panel assembly 3 is connected to the interior of the outer box 1.

[0034] The panel assembly 3 is connected with a multifunctional plug connector 31 and a power line plug connector 32 ; the multifunctional plug connector 31 and the power line plug connector 32 are respectively connected with one or more of the components 24 .

[0035] The multi-functions of the multi-function docking connector 31 are power supply, communication and control, the multi-function docking plug is connected to the corresponding components 24, and the power line docking connector 32 is also connected to the corresponding components 24 through the copper busbar; the multi-function docking connector 31 and the power line docking connector 32 are electrically connected to the outside to realize the electrical connection between the device assembly 2 in the box and the outside; the panel assembly 3 can be set on the front side of the outer box 1, and the heat dissipation groove can be set on the rear side of the outer box 1, so as to facilitate the heat dissipation of the outer box 1 as a whole.

[0036] An embodiment of the utility model provides a multifunctional energy storage system, comprising any of the multifunctional high-voltage boxes described above.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional high-voltage box, comprising a box body, characterized in that: The device assembly (2) further comprises a device assembly (2), wherein the device assembly (2) comprises a base plate (21) and components (24), wherein the base plate (21) is detachably connected to the bottom of the inner side of the box body; an electromagnetic valve bracket (22) is mounted on the base plate (21); a circuit breaker bracket (23) is detachably connected to the bottom of the inner side of the box body; a plurality of components (24) are detachably mounted on the base plate (21), the electromagnetic valve bracket (22) and the circuit breaker bracket (23); the installation distance of each component (24) is Z, the limit value of the insulation distance is X, and X≤Z≤1.1X.

2. A multifunctional high-voltage box according to claim 1, characterized in that: The box body comprises an outer box (1) and a cover plate (4); the cover plate (4) is detachably connected to the upper end of the outer box (1); and the cover plate (4) is connected to the outer box (1) via a fixed connecting piece.

3. A multifunctional high-voltage box according to claim 2, characterized in that: The bottom plate (21) and the circuit breaker bracket (23) are threadedly connected to the outer box (1); a fixing hole (11) is provided at the bottom of the outer box (1); and the bottom plate (21) and the circuit breaker bracket (23) are connected to the fixing hole (11) via a fixing connector.

4. A multifunctional high-voltage box according to claim 3, characterized in that: The outer box (1) is provided with a card slot, and the cover plate (4) is provided with a card plate.

5. A multifunctional high-voltage box according to claim 3, characterized in that: The side of the outer box (1) is provided with a heat dissipation groove.

6. A multifunctional high-voltage box according to claim 5, characterized in that: The heat dissipation groove is in the shape of a truncated cone, the cross section of the truncated cone faces the inside of the outer box (1), and the bottom surface of the truncated cone faces the outside of the outer box (1).

7. A multifunctional high-voltage box according to claim 6, characterized in that: An insulating plate (5) is provided on the inner wall of the outer box (1).

8. A multifunctional high-voltage box according to claim 7, characterized in that: The outer wall of the outer box (1) is provided with a panel assembly (3), and the panel assembly (3) is connected to the interior of the outer box (1).

9. A multifunctional high-voltage box according to claim 8, characterized in that: The panel assembly (3) is connected to a multifunctional plug-in connector (31) and a power line plug-in connector (32); the multifunctional plug-in connector (31) and the power line plug-in connector (32) are respectively connected to one or more of the components (24).

10. A multifunctional energy storage system, characterized in that: A multifunctional high-voltage box comprising any one of claims 1 to 9.

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