Energy storage battery plug-in box

Abstract

The utility model provides an energy storage battery plug-in box, the front side and the rear side of the energy storage battery plug-in box are respectively provided with a first U-shaped air duct partition plate and a second U-shaped air duct partition plate which are connected through a third U-shaped air duct partition plate, the energy storage battery plug-in box is divided into two battery accommodating spaces by the third U-shaped air duct partition plate, and the left side and the right side of the energy storage battery plug-in box are respectively provided with two groups of groove-shaped air duct partition plates. Transverse strip ventilation openings are formed in the third U-shaped air duct partition plate and the groove-shaped air duct partition plate at intervals; according to the utility model, the existing structure in the plug-in box is optimized, the U-shaped air duct partition plate and the diversion route are designed around the battery module, and two airflow paths are designed, so that airflow flowing into the energy storage plug-in box can flow through the surface of the battery module under the diversion action of the diversion piece (all flows through up and down, front and back, and left and right); and heat generated by the battery cell during operation of the energy storage system is taken away, and efficient heat dissipation is realized, so that the safety performance of the energy storage system is improved, and the service life of the energy storage system is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy storage and heat dissipation, and particularly relates to an energy storage battery plug-in box. BACKGROUND

[0002] With the growing global demand for renewable energy, the importance of energy storage technology is increasingly prominent. The current new energy storage equipment is usually composed of battery modules, battery management systems, inverters, control systems, cooling systems, housings and connectors, and has the advantages of high energy density, long service life, high reliability, strong environmental adaptability and the like. Energy storage equipment can store electrical energy and release it when needed for power use, and has a wide range of applications in power grid systems, industrial park power supply, mobile emergency power supply and the like, for example: smoothing fluctuations caused by non-connectivity new energy access to the power grid, maintaining power grid stability, while also suppressing load jumps, playing a role in frequency and voltage regulation, and improving power factor.

[0003] The energy storage cabinet is the basic unit of the energy storage equipment, and the energy storage plug-in box is the basic unit of the energy storage cabinet. The lithium ion batteries in the energy storage plug-in box are sensitive to temperature, and fluctuations in ambient temperature have a great impact on the capacity and consistency of the lithium ion batteries. By designing the energy storage plug-in box or the energy storage cabinet for heat dissipation, the operating temperature of the energy storage equipment is controlled within a reasonable range, and the batteries are ensured to work in a temperature-consistent environment, which can effectively improve the safety performance of the energy storage system and prolong the service life of the energy storage system.

[0004] The current mainstream heat dissipation methods in the industry are air cooling and liquid cooling. Although the liquid cooling system has slightly stronger heat dissipation effect, it has problems such as many components, complex maintenance, difficulty in reducing costs, and low popularization rate. Air cooling has the characteristics of low initial investment and convenient maintenance, but has problems such as poor air flow circulation and small contact area between gas and heat dissipation objects, which affects the safety of the energy storage system and the service life of the energy storage system. The existing air-cooled energy storage cabinet also has the problem that the heat dissipation objects cannot directly contact the airflow, and some directly contact the airflow but cannot ensure the firmness of the heat dissipation objects at the same time.

[0005] Based on the above problems, there is an urgent need to design a practical air-cooled heat dissipation box body with a reasonable structure, a large contact area between gas and heat dissipation objects, and the firmness of the heat dissipation objects at the same time, to improve the actual application effect and further improve the safety of the energy storage system and the service life of the energy storage system. INVENTION CONTENTS

[0006] The utility model aims at providing an energy storage battery plug-in box, solving the problem of poor air flow circulation and small contact area between gas and heat dissipation objects caused by the existing air-cooled heat dissipation method of the energy storage cabinet, and also solving the problem of the existing air-cooled heat dissipation of the energy storage cabinet directly contacting the airflow but unable to ensure the firmness of the heat dissipation objects at the same time.

[0007] The technical scheme of the utility model is as follows:

[0008] A kind of energy storage battery plug-in box, the energy storage battery plug-in box is equipped with cooling fan, the energy storage battery plug-in box includes front and rear panels and four wall surfaces, the energy storage battery plug-in box inside, first U-shaped air duct partition, second U-shaped air duct partition are respectively arranged at front side and rear side, the first U-shaped air duct partition, second U-shaped air duct partition are connected by third U-shaped air duct partition, and the third U-shaped air duct partition separates the energy storage battery plug-in box into two battery containing spaces of same size;The energy storage battery plug-in box inside, left side and right side are both equipped with two groups of groove air duct partitions, and the two ends of the groove air duct partition are connected with the first U-shaped air duct partition and the second U-shaped air duct partition respectively;Ventilation opening is formed in the first U-shaped air duct partition and the second U-shaped air duct partition, and the ventilation opening is formed in the connecting portion of the third U-shaped air duct partition, the groove air duct partition and the first U-shaped air duct partition and the second U-shaped air duct partition;Horizontal strip ventilation opening is formed in the groove air duct partition in a spaced manner.

[0009] Further preferably, it further comprises battery plug-in box heat dissipation holes, and the battery plug-in box heat dissipation holes are formed in the two side walls and the rear panel of the energy storage battery plug-in box.

[0010] Further preferably, the cooling fan is installed on the front panel of the energy storage battery plug-in box.

[0011] Further preferably, the two battery containing spaces are respectively installed with battery modules, and the battery modules are sequentially wrapped by insulating PC film, sheet metal module pressing strip and sheet metal module frame from inside to outside, and the gap between the battery modules and the energy storage battery plug-in box forms an air chamber.

[0012] Further preferably, the energy storage battery plug-in box is connected with an external air conditioning system or air pump system to convey airflow into the energy storage battery plug-in box.

[0013] Further preferably, the first U-shaped air duct partition and the second U-shaped air duct partition are designed as concave surfaces to form cavities between the first U-shaped air duct partition, the second U-shaped air duct partition and the front and rear panels.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model optimizes the existing structure inside the plug-in box, designs U-shaped air duct partitions and flow guide routes around the battery modules, so that the airflow flowing into the energy storage plug-in box can flow through the surface of the battery modules (up and down, front and back, left and right) under the flow guiding effect of the flow guiding members, carries away the heat generated by the battery cells during the operation of the energy storage system, efficiently dissipates heat, thereby improving the safety performance of the energy storage system and prolonging the service life of the energy storage system.

[0016] (2) The utility model discloses two kinds of airflow path, the first kind is that gas enters the cavity of first U type air duct baffle, flows along the up and down and left and right gap (air chamber) between battery module and energy storage battery plug -in box, and flows out through the heat dissipation hole of two side walls or back panel, the second kind is that gas enters third U type air duct baffle and the two groups of groove type air duct baffles (flow guide) of left and right sides through the vent of first U type air duct baffle, and further flows out or flow -directed after through the heat dissipation hole of two side walls and back panel after the vent of second U type air duct baffle.

[0017] (3) The utility model discloses low initial investment, convenient maintenance, increase the contact area of airflow and battery module surface, and through the insulation PC film, sheet metal module pressure strip and sheet metal module frame in proper order with battery module fixed in battery containing space, solve the problem of unstable fixation of battery module in plug -in box.

[0018] (4) The energy storage battery plug -in box is provided with a cooling fan on the top, which can realize basic cooling by direct operation, and is also connected with an external air conditioning system or air pump system to realize better air cooling effect through various ways such as increasing air volume and reducing air temperature. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is the structural schematic diagram of the energy storage battery plug -in box of the utility model;

[0020] Fig. 2 is the assembly schematic diagram of the energy storage battery plug -in box of the utility model embodiment;

[0021] Fig. 3 is the schematic diagram of the groove type air duct baffle and third U type air duct baffle of the energy storage battery plug -in box of the utility model embodiment;

[0022] In the drawing: 1, energy storage battery plug -in box; 2, first U type air duct baffle; 3, second U type air duct baffle; 4, third U type air duct baffle; 5, groove type air duct baffle; 6, vent; 7, horizontal strip vent; 8, front panel; 9, cooling fan; 10, battery plug -in box heat dissipation hole; 11, battery module; 12, sheet metal module pressure strip; 13, sheet metal module frame. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0024] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning as understood by a person having ordinary skill in the art to which the present disclosure pertains. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms "one", "a", or "the" and similar terms do not denote a quantity of any number, but mean the existence of at least one. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0025] The present embodiment provides a kind of energy storage battery plug-in box 1, in combination with referring to Figs. 1 to 3 The energy storage battery plug-in box 1 is provided with a cooling fan 9, and the cooling fan 9 is installed on the front panel 8 of the energy storage battery plug-in box 1.

[0026] The energy storage battery plug-in box 1 includes front and rear panels and four walls, and the energy storage battery plug-in box 1 is internally provided with a first U-shaped air duct partition plate 2 and a second U-shaped air duct partition plate 3 on the front and rear sides, respectively, the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3 are connected by a third U-shaped air duct partition plate 4, the third U-shaped air duct partition plate 4 divides the energy storage battery plug-in box 1 into two battery containing spaces of the same size, and two battery containing spaces are respectively provided with a battery module 11, the battery module 11 is sequentially wrapped by an insulating PC film, a sheet metal module pressing strip 12, and a sheet metal module frame 13 from inside to outside, and a gap between the battery module 11 and the energy storage battery plug-in box 1 forms an air chamber.

[0027] The energy storage battery plug-in box 1 is internally provided with two groups of slot-shaped air duct partition plates 5 on the left and right sides, respectively, and the two ends of the slot-shaped air duct partition plates 5 are connected to the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3, respectively.

[0028] The first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3 are designed as concave surfaces, so that the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3 form cavities with front and rear panels. Ventilation openings 6 are formed on the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3, and the ventilation openings 6 are formed at the connection positions of the third U-shaped air duct partition plate 4, the groove-shaped air duct partition plate 5 and the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3, and the ventilation openings 6 are also formed on the side surfaces of the first U-shaped air duct partition plate 2 and the second U-shaped air duct partition plate 3. The third U-shaped air duct partition plate 4 and the groove-shaped air duct partition plate 5 are provided with horizontal strip ventilation openings 7 at intervals.

[0029] The energy storage battery plug-in box 1 also comprises battery plug-in box heat dissipation holes 10 which are formed on the two side walls and the rear panel of the energy storage battery plug-in box 1.

[0030] According to the actual application requirements, the three air duct partition plates are made of sheet metal parts, and the side walls of the partition plates are provided with holes, and the number and size of the holes are determined according to the contact area of the battery cell.

[0031] The energy storage battery plug-in box 1 optimizes the existing structure inside the plug-in box, designs U-shaped air duct partition plates and flow guide routes around the battery module 11, so that the airflow flowing into the energy storage plug-in box can flow through the surface of the battery module 11 (up and down, front and back, left and right) under the flow guiding effect of the flow guiding part, carries away the heat generated by the battery cell during the operation of the energy storage system, efficiently dissipates heat, and keeps the working temperature within a normal range, thereby improving the safety performance of the energy storage system and prolonging the service life of the energy storage system.

[0032] In actual application, the utility model designs two kinds of airflow paths, the first kind is that the gas enters the cavity of the first U-shaped air duct partition plate 2, flows along the up and down and left and right gaps (air chambers) between the battery module 11 and the energy storage battery plug-in box 1, and flows out through the heat dissipation holes in the two side walls or the rear panel; the second kind is that the gas enters the third U-shaped air duct partition plate 4 and the two groups of groove-shaped air duct partition plates 5 on the left and right sides through the ventilation openings 6 of the first U-shaped air duct partition plate 2 (realize flow guiding), and then flows out through the heat dissipation holes in the two side walls and the rear panel after further passing through the horizontal strip ventilation openings 7 or directly passing through the ventilation openings 6 of the second U-shaped air duct partition plate 3 after flow guiding.

[0033] The utility model discloses low initial investment, maintenance is convenient, has increased the contact area of airflow and battery module 11 surface, fixes battery module in battery containing space in proper order through insulating PC film, sheet metal module pressure strip 12 and sheet metal module frame, has solved the problem of unstable fixation of battery module 11 in the box. In addition, the energy storage battery plug-in box 1 of the embodiment is connected with external air conditioning system or air pump system, and air flow is transported to the inside of the energy storage battery plug-in box 1. The heat dissipation fan 9 is designed on the energy storage battery plug-in box 1, and basic heat dissipation can be realized by direct operation. In addition, the air conditioning system or air pump system connected with the outside can further realize better air cooling effect through various ways such as increasing air volume and reducing air temperature.

[0034] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A battery storage box (1), wherein the battery storage box (1) is provided with a cooling fan (9), and the battery storage box (1) includes front and rear panels and four surrounding walls, characterized in that: Inside the energy storage battery box (1), a first U-shaped air duct partition (2) and a second U-shaped air duct partition (3) are respectively provided on the front and rear sides. The first U-shaped air duct partition (2) and the second U-shaped air duct partition (3) are connected by a third U-shaped air duct partition (4). The third U-shaped air duct partition (4) divides the energy storage battery box (1) into two battery accommodating spaces of the same size. Inside the energy storage battery box (1), two sets of grooved air duct partitions (5) are provided on the left and right sides. The two ends of the grooved air duct partitions (5) are respectively connected to the first U-shaped air duct partition (2) and the second U-shaped air duct partition (3). Ventilation openings (6) are provided on the first U-shaped air duct partition (2) and the second U-shaped air duct partition (3). The ventilation openings (6) are provided at the connection between the third U-shaped air duct partition (4), the grooved air duct partition (5) and the first U-shaped air duct partition (2) and the second U-shaped air duct partition (3). The ventilation openings (6) are also provided on the sides of the first U-shaped air duct partition (2) and the second U-shaped air duct partition (3). The third U-shaped air duct partition (4) and the trough-shaped air duct partition (5) are provided with horizontal air vents (7) spaced apart.

2. The energy storage battery box (1) according to claim 1, characterized in that, It also includes battery compartment heat dissipation holes (10), which are opened on the two side walls and the rear panel of the energy storage battery compartment (1).

3. The energy storage battery box (1) according to claim 2, characterized in that, The cooling fan (9) is installed on the front panel (8) of the energy storage battery box (1).

4. The energy storage battery box (1) according to claim 1, characterized in that, Battery modules (11) are installed in the two battery accommodating spaces respectively. The battery modules (11) are fixed from the inside out by an insulating PC film, a sheet metal module pressure strip (12), and a sheet metal module frame (13). The gap between the battery modules (11) and the energy storage battery box (1) forms an air chamber.

5. The energy storage battery box (1) according to claim 1, characterized in that, The energy storage battery box (1) is connected to an external air conditioning system or air pump system to deliver airflow into the energy storage battery box (1).

6. The energy storage battery box (1) according to claim 1, characterized in that, The first U-shaped air duct partition (2) and the second U-shaped air duct partition (3) are concave, so that the first U-shaped air duct partition (2) and the second U-shaped air duct partition (3) form a cavity with the front and rear panels.

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