Two-in-one high-voltage box
By integrating the energy storage control unit into the same box body and setting up a switching power supply, the problem of low integration of high-voltage boxes is solved, efficient space utilization and cost reduction are achieved, and suitable for large-capacity energy storage systems.
Patent Information
- Application Number
- CN202510671911.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-07-25
AI Technical Summary
The existing high-voltage boxes have low integration and large space occupancy, making it difficult to meet the needs of large-capacity energy storage systems.
A two-in-one high-voltage box is designed to integrate the BMU, heat dissipation fan, main positive contactor, main negative contactor, fuse, plastic case switch, precharge resistor and precharge resistor contactor in the energy storage control unit in the same box body, and a switching power supply is set in the box body to supply power. The two sets of energy storage control units are symmetrically distributed left and right.
It improves integration and space utilization, reduces production costs, and realizes a high-pressure box with compact structure, low cost and strong practicality.
Smart Images
Figure CN120377439A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an energy storage device, and more particularly to a two-in-one high-voltage box. Background Art
[0002] In the field of energy storage, energy storage battery products are developing towards large capacity. Before 2023, 280Ah square batteries quickly occupied most of the market with their large capacity, high safety, high energy density, and mature mass production processes; after 2023, in order to conform to the trend of a larger scale and capacity in the future energy storage market, the field mainly focuses on competing in 300Ah+ large-capacity batteries. The intensive launch of 300Ah+ energy storage batteries reflects the positive growth and technological iteration of the energy storage market; furthermore, in order to layout the future market, some battery companies have already carried out technology reserves for 500Ah+, 600Ah+, 1000Ah+, blade batteries, etc.; while the capacity of the battery cells is increasing, the era of 5MWh+ energy storage systems has also arrived. As an integral part of the battery energy storage system, the high-voltage box plays an important role in controlling and managing battery modules, but the existing high-voltage boxes have problems such as low integration and large occupied space. Summary of the Invention
[0003] The purpose of the present invention is to provide a two-in-one high-voltage box, which has the advantages of compact structure, low cost, high integration, and strong practicability.
[0004] To solve the above problems existing in the prior art, the present invention provides a two-in-one high-voltage box, including a box body and two groups of energy storage control units arranged in the box body. A switching power supply for powering the energy storage control units is provided in the box body. The energy storage control unit includes a BMU, a cooling fan, a main positive contactor, a main negative contactor, a fuse, a molded case switch, a pre-charge resistor, and a pre-charge resistor contactor.
[0005] Furthermore, in a two-in-one high-voltage box of the present invention, the switching power supply is arranged in the middle of the rear side inside the box body. The BMUs of the two groups of energy storage control units are correspondingly arranged on the left and right sides of the switching power supply. The cooling fans, main positive contactors, main negative contactors, fuses, molded case switches, pre-charge resistors, and pre-charge resistor contactors of the two groups of energy storage control units are symmetrically distributed left and right.
[0006] Compared with the prior art, the two-in-one high-voltage box of the present invention has the following advantages: By providing a box body and two energy storage control units disposed in the box body, a switching power supply for supplying power to the energy storage control units is arranged in the box body, and the energy storage control units are provided with a BMU, a cooling fan, a main positive contactor, a main negative contactor, a fuse, a molded case switch, a pre-charge resistor, and a pre-charge resistor contactor. Thus, a two-in-one high-voltage box with a compact structure, low cost, high integration, and strong practicability is formed. Compared with the prior art, by integrating two energy storage control units in the same box body, the present invention not only improves the integration and space utilization rate, but also saves a housing and some internal components, reducing the production and manufacturing cost.
[0007] The following further describes in detail a two-in-one high-voltage box of the present invention in conjunction with the specific embodiments shown in the accompanying drawings. Brief Description of the Drawings
[0008] Figure 1 is a front view of a two-in-one high-voltage box of the present invention;
[0009] Figure 2 is a top view of the internal structure of a two-in-one high-voltage box of the present invention. Specific Embodiments
[0010] It should be noted first that the orientation words such as up, down, left, right, front, and back described in the present invention are only described according to the accompanying drawings for easy understanding, and do not limit the technical solutions and the scope of claims of the present invention.
[0011] As Figure 1 and Figure 2 shown, the specific embodiment of a two-in-one high-voltage box of the present invention includes a box body 1 and two energy storage control units disposed in the box body 1. A switching power supply 2 for supplying power to the energy storage control units is arranged in the box body 1, and the energy storage control units are provided with a BMU (battery management device) 3, a cooling fan 4, a main positive contactor 5, a main negative contactor 6, a fuse 7, a molded case switch 8, a pre-charge resistor 9, and a pre-charge resistor contactor 10. Through the above settings, a two-in-one high-voltage box with a compact structure, low cost, high integration, and strong practicability is formed. Compared with the prior art, by integrating two energy storage control units in the same box body 1, the present invention not only improves the integration and space utilization rate, but also saves a housing and some internal components, reducing the production and manufacturing cost. It should be noted that the structural composition of the energy storage control unit and the connection relationship of the BMU 3, the cooling fan 4, the main positive contactor 5, the main negative contactor 6, the fuse 7, the molded case switch 8, the pre-charge resistor 9, and the pre-charge resistor contactor 10 are well known to those skilled in the art and will not be elaborated herein.
[0012] In practical applications, for the convenience of layout and to enhance the balance of the structure, the present invention usually arranges the switching power supply 2 at the middle position of the rear side inside the box body 1, and correspondingly arranges the BMU 3 of the two energy storage control units on the left and right sides of the switching power supply 2, and arranges the cooling fans 4, main positive contactors 5, main negative contactors 6, fuses 7, molded case switches 8, pre-charge resistors 9 and pre-charge resistor contactors 10 of the two energy storage control units at the front side position of the switching power supply 2 in a left-right symmetric manner.
[0013] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of protection of the present invention. Without departing from the design concept of the present invention, various deformations made by those skilled in the art based on the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.
Claims
1. An integrated high-voltage box, characterized in that, It includes a box body (1) and two groups of energy storage control units arranged in the box body (1). A switching power supply (2) for powering the energy storage control units is provided in the box body (1). The energy storage control unit includes a BMU (3), a cooling fan (4), a main positive contactor (5), a main negative contactor (6), a fuse (7), a molded case switch (8), a pre-charge resistor (9), and a pre-charge resistor contactor (10).
2. The two-in-one high-voltage box according to claim 1, characterized in that, The switching power supply (2) is arranged in the middle of the rear side inside the box body (1). The BMUs (3) of the two groups of energy storage control units are correspondingly arranged on the left and right sides of the switching power supply (2). The cooling fans (4), main positive contactors (5), main negative contactors (6), fuses (7), molded case switches (8), pre-charge resistors (9), and pre-charge resistor contactors (10) of the two groups of energy storage control units are symmetrically distributed left and right.