CN115425326A - Battery box and battery formation and capacity grading equipment comprising same - Google Patents

Abstract

The invention provides a battery box and battery formation and capacity equipment containing it, relates to the technical field of lithium batteries, and solves the technical problem that poor heat dissipation of the battery affects service performance and service life. The battery box includes a sealed first box body, a battery module and a heat dissipation device. The battery module is placed in the first box body; A closed heat dissipation cycle is formed between them; the battery formation and storage equipment includes a sealed second box and a battery box placed in the second box. The present invention adopts a closed water-cooling modular design, which is stable and reliable during operation, is not prone to failure, and reduces the maintenance cost of the water-cooling device. The modular design of the inner and outer cabinets, the front and rear of the cabinets can be opened, which is convenient for maintenance, and the second cabinet It can be arranged in a stacked manner, which not only saves the floor space, but also facilitates personnel management, centralized layout management, high plant utilization rate, and convenient personnel management and maintenance.

Description

A battery box and battery formation and capacity equipment containing it

technical field

The invention relates to the technical field of lithium batteries, in particular to a battery box and battery composition and capacity equipment containing it.

Background technique

Lithium batteries are widely used in the field of new energy due to their superior performance. The batteries are wrapped in the battery box, and the battery modules composed of series and parallel connections generate a lot of heat during charging and discharging. Due to the limited space of the battery box, if the The heat dissipation and cooling of the battery pack module can easily lead to a sharp rise in battery temperature and uneven temperature distribution among single cells, which will affect the performance and cycle life of the battery, and even cause thermal runaway of the battery.

Contents of the invention

The purpose of the present invention is to provide a battery box and a battery chemical composition and capacity device containing it, so as to solve the technical problem in the prior art that the heat dissipation of the battery is not good, which affects the performance and life of the battery.

To achieve the above object, the present invention provides the following technical solutions:

In the first aspect, the present invention provides a battery box, including a sealed first box body, a battery module, and a heat dissipation device, wherein:

The battery module is placed in the first box;

Both ends of the heat sink are connected to the first box to form a closed heat dissipation cycle between the first box and the heat sink.

As a further improvement of the present invention, the heat dissipation device includes a fan assembly, a condenser, a ventilation duct, a water inlet pipe and a water outlet pipe, wherein:

An air outlet and an air inlet are opened on the first box;

The fan assembly is fixed inside the air outlet;

Both ends of the ventilation duct are respectively connected to the air outlet and the air inlet;

The condenser is fixed in the ventilation duct outside the air outlet;

The water inlet pipe and the water outlet pipe are respectively connected to two ends of the condenser.

As a further improvement of the present invention, the first box body includes an inner box and a first box door, and the first box door is installed on the front side and the rear side of the inner box so as to be openable and closable.

As a further improvement of the present invention, the first box body, the battery module and the heat dissipation device are designed as modular structures.

In a second aspect, the present invention provides a battery formation and storage device, comprising a sealed second box and the battery box placed in the second box.

As a further improvement of the present invention, the second box has a number of storage locations independent of each other, and a set of the battery boxes is placed in each of the storage locations.

As a further improvement of the present invention, there is a compartment between two adjacent storage locations on the same floor, and a main water inlet pipe and a main water outlet pipe connected to the heat dissipation device are arranged in the compartment.

As a further improvement of the present invention, the second box body includes an outer box and a second cabinet door, and the second cabinet door is installed on the front side and the rear side of the outer box so as to be openable and closable.

As a further improvement of the present invention, the second cabinet door is a fireproof cabinet door.

As a further improvement of the present invention, an inspection platform is also provided on the rear side of the second box body.

As a further improvement of the present invention, the outer box includes a frame, side panels, a first sealing partition and a second sealing partition; wherein:

The side panels are arranged around the frame to form the sealed second box together with the second cabinet door;

The first sealing partition and the second sealing partition are disposed in the inner cavity of the outer box in a cross shape, so as to divide the inner cavity into a plurality of independent storage locations and compartments.

As a further improvement of the present invention, the maintenance platform includes a frame and a top plate, and the top plate is laid on top of the frame to form a carrying platform for maintenance.

As a further improvement of the present invention, the second box body and the battery box are modular structures.

As a further improvement of the present invention, there are multiple second boxes arranged in a stacked manner.

Compared with the prior art, the present invention has the following beneficial effects:

The battery box provided by the present invention adopts a closed first box structure, and then a heat dissipation device is arranged on the closed first box body, which can realize a closed heat dissipation cycle and improve the heat dissipation effect; Condenser, and use the fan assembly to increase the circulation heat dissipation speed, and set the battery box and heat dissipation device into a modular structure, that is, adopt a closed water-cooled modular design, use a water-cooled device, and the water temperature of the water supply unit is constant at 18°C, so in It is stable and reliable during operation, less prone to failure, and reduces the maintenance cost of the water-cooling device, making the water-cooling system more economical and efficient. When the actual heat transfer of a single storage location is about 8242W, the heat transfer of the cooling device is as high as 8900W, the pressure loss is only about 20Pa, the temperature before the heat exchange is 35°C, and after the heat exchange is 21224°C, the maximum temperature difference between the batteries is 2.33°C, which solves the problem of battery heat dissipation and reduces the maintenance cost of the product; the battery composition of the present invention To accommodate equipment, the battery box and the second box are modularized, that is, the modular design of the inner and outer cabinets is adopted. The front and back of the cabinet can be opened for easy maintenance, and the second box can be arranged in a stacked manner. , not only saves the floor area, but also facilitates personnel management, centralized layout management, high plant utilization rate, and convenient personnel management and maintenance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the spatial layout of the battery formation and capacity equipment of the present invention;

Fig. 2 is a structural schematic diagram (right front side) of opening the cabinet door of the battery formation and capacity equipment of the present invention;

Fig. 3 is a schematic structural view (left front side) of the second box body in the battery formation and storage device of the present invention;

Fig. 4 is a front structural diagram of the battery formation and capacity equipment of the present invention;

Fig. 5 is a schematic diagram of the rear view of the battery formation and capacity equipment of the present invention;

1. Battery formation and capacity equipment; 2. Water inlet main pipe; 3. Water outlet main pipe;

4. Fireproof cabinet door; 5. Frame; 6. Battery module; 7. Battery box; 8. Condenser; 9. First door; 10. Fan assembly; 11. Ventilation duct; 12. First sealing partition ; 13, the first sealing plate; 14, the second sealing plate; 15, the third sealing plate; 16, the side plate;

20. Water inlet pipe; 21. Water outlet pipe;

17. Rear cabinet door; 18. Top floor board; 19. Maintenance platform.

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

As shown in Figure 2, the present invention provides a battery box 7, including a sealed first box body, a battery module 6 and a heat dissipation device, wherein:

The battery module 6 is a lithium battery working unit, placed in the first box;

Both ends of the cooling device are connected to the first box to form a closed cooling cycle between the first box and the cooling device.

The high-temperature gas in the first box enters through one end of the heat sink, and returns to the first box after cooling down. Through the closed heat dissipation cycle, the heat dissipation effect is improved, and the influence of external air on the heat sink is also avoided. Moreover, because the first box is Sealed structure, all the heat dissipation of the battery module 6 is carried out by the heat dissipation device for heat dissipation and cooling, so as to avoid overflow to other spaces and cause the impact of peripheral equipment.

As an optional embodiment of the present invention, the heat dissipation device includes a fan assembly 10, a condenser 8, a ventilation duct 11, a water inlet pipe 20 and a water outlet pipe 21, wherein:

The first box is provided with an air outlet and an air inlet;

The fan assembly 10 is fixed on the inner side of the air outlet, and the optimal setting position is to set it inside the first box facing the air outlet, and use the fan assembly 10 to blow or draw air, and send the high-temperature gas in the first box into the ventilation duct In 11, the cooling water in the condenser 8 is used for heat exchange to realize the gas cooling process;

The two ends of the ventilation duct 11 are respectively connected to the air outlet and the air inlet, so that the gas enters the ventilation duct 11 through the air outlet to cool down, and then flows back into the first box from the air inlet at the other end, thereby realizing a closed circulation heat dissipation process;

The condenser 8 is fixed in the ventilation pipe 11 outside the air outlet, and is used to take away the heat in the gas flowing through it;

The water inlet pipe 20 and the water outlet pipe 21 are respectively connected to both ends of the condenser 8 to continuously supply low-temperature cooling water, and then return the heat-exchanged cooling water to the external cooling device to cool down the cooling water for reuse to form a cooling system. water cycle.

The water cooling device is used, and the water temperature of the water supply unit is constant at 18°C, so it is stable and reliable during operation, and is not prone to failure, which reduces the maintenance cost of the water cooling device and makes the water cooling system more economical and efficient.

As shown in FIG. 2 , the first box body includes an inner box and a first box door 9 , and the first box door 9 is installed on the front side and the rear side of the inner box so as to be openable and closable.

The first box body, the battery module 6 and the cooling device are designed as a modular structure. In one embodiment, the heat exchanger is designed according to the product length×width×height=880mm×25.4mm×420mm, which is low in price and high in heat dissipation . A set of air-cooled heat exchange system is installed on one side, so that the heat in the cabinet can be dissipated through the heat exchange cycle of the ventilation pipe. The heat exchange system is simple and the number of supporting parts is small.

That is to say, when arranged, each battery box 7 is a whole, and each battery box 7 is equipped with a set of battery modules 6 and a set of heat dissipation device, and the heat dissipation device is used for cooling the battery modules 6 in the battery box 7. The generated heat is dissipated.

Modular structure is adopted, which is convenient for layout and convenient for maintenance.

The battery box provided by the present invention adopts a closed first box structure, and then a heat dissipation device is arranged on the closed first box body, which can realize a closed heat dissipation cycle and improve the heat dissipation effect; Condenser, and use the fan assembly to increase the circulation heat dissipation speed, and set the battery box and heat dissipation device into a modular structure, that is, adopt a closed water-cooled modular design, use a water-cooled device, and the water temperature of the water supply unit is constant at 18°C, so in It is stable and reliable during operation, less prone to failure, and reduces the maintenance cost of the water-cooling device, making the water-cooling system more economical and efficient. When the actual heat transfer of a single storage location is about 8242W, the heat transfer of the cooling device is as high as 8900W, the pressure loss is only about 20Pa, the temperature before heat exchange is 35°C, and after heat exchange is 21224°C, the maximum temperature difference between batteries is 2.33°C, which solves the problem of battery heat dissipation and reduces the maintenance cost of the product.

As shown in FIGS. 1-5 , the present invention provides a battery formation and storage device 1 , which includes a sealed second box and a battery box 7 placed in the second box.

Since the battery box 7 is a modular design structure, it is convenient for layout and arrangement when it is put into the second box body.

In order to improve the utilization rate of space, there are several warehouse locations independent of each other in the second box, and a set of battery boxes 7 is placed in each warehouse location. As shown in FIG. 2 , in this embodiment, a total of 4 storage locations are designed in the second box, which can prevent four sets of battery boxes 7 . And the four storage locations are divided into two rows, and each row has two storage locations on the left and right.

In order to facilitate the arrangement of pipelines connected to the condenser 8, there is a partition room between two adjacent storage locations on the same floor, and the water inlet main pipe 2 and the water outlet main pipe 3 connected to the heat dissipation device are arranged in the partition room.

What needs to be explained here is that since there are only two storage locations on the same floor in Figure 2, it is sufficient to set up a compartment between the two storage locations, and the main water inlet pipe 2 and the main water outlet pipe 3 in the compartment respectively pass through The water inlet pipe 20 and the water outlet pipe 21 are connected to the condensers 8 on the left and right sides; if there are more warehouse locations on the same floor, preferably an even number, then the warehouse locations on the same floor are divided into pairs, Set up compartments between each pair of storage locations. For example, if four storage locations are set on the same floor, two pairs of storage locations will be formed, and separate compartments will be set in the two pairs of storage locations, so that two compartments will be arranged on the same floor; of course , It is also possible to set an odd number of storage locations, then set the water inlet main pipe 2 and the water outlet main pipe 3 that can supply cooling water to the storage locations on both sides between the paired storage locations, and set up a compartment next to the remaining single storage locations , Carry out the layout of the water inlet main pipe 2 and the water outlet main pipe 3. Moreover, in this embodiment, the compartments between the storage positions of the upper and lower floors are facing to each other, thus, a water inlet main pipe 2 and a water outlet main pipe 3 can be provided to provide water for the two sides of all layers. Condenser 8 in the storage location provides cooling water supply.

The sealed water-cooled chemical composition and storage equipment sets the working space of the inner and outer cabinets into a closed type, and a sealed fireproof partition is set between each layer, and a sealed partition is separated between the storage locations. The water cooling device of each module is opposite to the storage location. The internal battery box is used to dissipate heat, so that the heat exchange rate of the lithium battery is higher during the process of decomposing and subdividing.

As shown in FIG. 2 and FIG. 5 , the second box body includes an outer box and a second cabinet door, and the second cabinet door can be opened and closed on the front side and the rear side of the outer box.

Furthermore, the second cabinet door is a fireproof cabinet door 4 .

In order to facilitate maintenance, an inspection platform 19 is also provided on the rear side of the second box body.

As shown in Figures 2 and 3, the outer box includes a frame 5, a side plate 16, a first sealing partition 12 and a second sealing partition; wherein:

Side panels 16 are arranged around the frame 5 to form a sealed second box together with the second cabinet door;

The first sealing partition 12 and the second sealing partition are arranged in the inner cavity of the outer box in a cross shape, so as to divide the inner cavity into a plurality of independent storage positions and compartments. Furthermore, both the first sealing partition 12 and the second sealing partition are fireproof partitions.

The second cabinet door on the rear side of the outer box is the rear cabinet door 17, which is used to open the outer box during maintenance;

Specifically, in this embodiment, as shown in FIG. 3 , the number of second sealing partitions in each layer is three, which are respectively the first sealing plate 13, the second sealing plate 14 and the third sealing plate 15. Three horizontally arranged second sealing partitions separate the inner cavity into upper and lower independent spaces, and together with the vertically arranged first sealing partitions 12 form a plurality of independent storage locations, each storage location is used for Place a set of battery boxes 7 .

Specifically, as shown in FIG. 3 and FIG. 5 , the maintenance platform 19 includes a frame and a top plate, and the top plate is laid on top of the frame to form a bearing platform for maintenance.

Specifically, the second box body and the battery box 7 have a modular structure, and the modular outer cabinet carrying device is aimed at a unit weight of about 500kg for a single battery of chemical composition and capacity integration.

As shown in Figure 1, there are multiple second cabinets, which are arranged in a stacked manner, and the outer cabinets are stacked, and three outer cabinets form a workstation. Workstations can be arranged in a centralized manner according to the actual situation of the site. What needs to be explained here is that the stacking here means that multiple sets of second cabinets can be arranged in the height direction. Of course, one layer of second cabinets can also be arranged in a row first, and then stacked in the height direction. , in order to facilitate the stacking of the second box body, the side plate positioned at the top of the second box body requires a certain strength for the top floor plate 18 to support the second box body positioned thereon.

The battery storage and storage equipment of the present invention adopts a modular design for both the battery box and the second box, that is, the modular design of the inner and outer cabinets is adopted. The front and rear of the cabinet can be opened for easy maintenance, and the second box The body can be arranged in a stacked manner, which not only saves the floor space, but also facilitates personnel management, centralized layout management, high plant utilization rate, and convenient personnel management and maintenance.

It should first be explained here that "inward" refers to a direction toward the center of the accommodating space, and "outward" refers to a direction away from the center of the accommodating space.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in Figure 1, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (14)

1. The utility model provides a battery box which characterized in that, includes the first box of sealed, battery module and heat abstractor, wherein:

the battery module is placed in the first box body;

and two ends of the heat dissipation device are connected with the first box body, so that a closed heat dissipation circulation is formed between the first box body and the heat dissipation device.

2. The battery box of claim 1, wherein the heat dissipation device comprises a fan assembly, a condenser, a ventilation duct, an inlet duct, and an outlet duct, wherein:

the first box body is provided with an air outlet and an air inlet;

the fan assembly is fixed on the inner side of the air outlet;

the two ends of the ventilation pipeline are respectively connected with the air outlet and the air inlet;

the condenser is fixed in the ventilating duct on the outer side of the air outlet;

the water inlet pipe and the water outlet pipe are respectively connected with two ends of the condenser.

3. The battery box according to claim 1 or 2, wherein the first box body comprises an inner box and a first door, and the first door is openably and closably installed at the front side and the rear side of the inner box.

4. The battery box according to claim 1 or 2, wherein the first case, the battery modules, and the heat sink are designed in a modular structure.

5. A battery chemical composition and capacity equipment comprising a sealed second case and the battery case according to any one of claims 1 to 4 placed in the second case.

6. The battery chemical component capacity equipment of claim 5, wherein the second box body is provided with a plurality of mutually independent storage positions, and each storage position is internally provided with a set of the battery box.

7. The battery chemical component container according to claim 6, wherein a compartment is provided between two adjacent storage locations of the same layer, and a water inlet manifold and a water outlet manifold connected to the heat sink are arranged in the compartment.

8. The battery chemical component capacity apparatus according to claim 7, wherein the second case includes an outer case and a second door openably and closably mounted on front and rear sides of the outer case.

9. The battery chemical constituent capacity device of claim 8, wherein the second cabinet door is a fire-proof cabinet door.

10. The battery chemical composition and capacity separation device according to any one of claims 5 to 9, wherein the rear side of the second box body is further provided with an inspection platform.

11. The battery chemical component container apparatus according to claim 8 or 9, wherein the outer case includes a frame, a side plate, a first sealing separator, and a second sealing separator; wherein:

the side plates are arranged around the frame in a surrounding mode so as to form a sealed second box body together with the second cabinet door;

the first sealing partition plate and the second sealing partition plate are arranged in the inner cavity of the outer box in a crossed mode so as to divide the inner cavity into a plurality of independent storage positions and compartments.

12. The battery chemical component capacity apparatus of claim 10, wherein the service platform comprises a frame and a roof, the roof being laid atop the frame to form a service load-bearing platform.

13. The battery chemical component capacity apparatus according to any one of claims 5 to 9, wherein the second case and the battery case are of a modular structure.

14. The battery chemical component capacity apparatus according to any one of claims 5 to 9, wherein the second case is plural in number and arranged in a stacked manner.

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