String type heat dissipation air duct of energy storage battery cabin

Abstract

The utility model discloses a string type energy storage battery cabin heat dissipation air duct which comprises a battery cabin, the interior of the battery cabin is divided into an upper layer and a lower layer through a transverse partition plate, the upper-layer space of the battery cabin is a battery chamber, two rows of battery clusters are installed in parallel, the front row of battery clusters and the rear row of battery clusters are arranged back to back, and the lower-layer space of the battery cabin is an energy storage converter chamber. One energy storage converter is mounted at a lower-layer space position corresponding to each battery cluster, the energy storage converters corresponding to the battery clusters are arranged in two rows, every two energy storage converters are arranged back to back, and the space between the battery chamber and the energy storage converter chamber is sealed; according to the string type heat dissipation air duct for the energy storage battery cabin, the battery cabins are arranged in an up-and-down layered mode, concentrated arrangement of the battery clusters and the energy storage converters is achieved, sealing treatment is conducted between the battery chambers and the energy storage converter chambers, and it can be avoided that dust enters the battery chambers to affect work of the battery clusters while ventilation and heat dissipation of the energy storage converters are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of heat dissipation of electrochemical energy storage systems, in particular to a heat dissipation duct for a string-type energy storage battery compartment. Background Art

[0002] String energy storage battery compartments use a DC series connection between the energy storage inverter and the battery cluster, and AC parallel connection between multiple clusters, achieving single-cluster management. This offers significant advantages over centralized energy storage systems and has gradually become a mainstream product in the market in recent years. The batteries in string energy storage battery compartments use liquid cooling technology to achieve precise temperature control, but the energy storage inverter uses air cooling. Air cooling requires ventilation holes in the battery compartment, which inevitably affects the protection level of the entire battery compartment. However, energy storage battery compartments are generally located and operated outdoors and have a protection level of at least IP54. Therefore, to meet the heat dissipation requirements of the energy storage inverter and the protection level of the battery compartment, the energy storage inverter must be separated from the battery cluster. If the energy storage inverter is separated from the battery compartment and a separate compartment is established, the floor space will increase by 40%. If the energy storage inverter and battery cluster are arranged together, the heat dissipation issues of the energy storage inverter and the protection level of the battery compartment need to be addressed.

[0003] To this end, we design a heat dissipation duct for a string-type energy storage battery compartment. Utility Model Content

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a heat dissipation duct for a string-type energy storage battery compartment to solve the problems raised in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a heat dissipation duct for a string-type energy storage battery compartment, comprising a battery compartment, wherein the interior of the battery compartment is divided into upper and lower layers by a transverse partition; the upper layer of the battery compartment is a battery chamber, in which two rows of battery clusters are installed in parallel, with the front and rear rows of battery clusters arranged back to back; the lower layer of the battery compartment is an energy storage converter chamber, wherein an energy storage converter is installed in the lower layer corresponding to each battery cluster; the energy storage converters corresponding to the battery clusters are arranged in two rows, with each two energy storage converters arranged back to back; and a seal is performed between the battery chamber and the energy storage converter chamber;

[0006] An exhaust port is provided at the bottom of the energy storage converter chamber and between each two back-to-back energy storage converters. An air inlet is provided on the front of each energy storage converter, and an air outlet is provided on the back. An air chamber is provided between the air outlets of the two back-to-back energy storage converters and the corresponding air outlets. A guide plate is installed inside the air chamber, and the guide plate is located between the air outlets of the two back-to-back energy storage converters.

[0007] Preferably, a first ventilation mesh plate is installed at the air outlet, and a filter is laid on the ventilation mesh holes of the first ventilation mesh plate.

[0008] Preferably, door panels are rotatably mounted on the front and rear of the battery chamber.

[0009] Preferably, second ventilation mesh plates are installed in front and at the rear of the energy storage converter chamber, and filters are laid on the ventilation mesh holes of the second ventilation mesh plates.

[0010] Preferably, a foundation is provided below the battery compartment, and the battery compartment is mounted on the foundation. The foundation is in the shape of a U and has ventilation holes arranged around it.

[0011] Compared with the prior art, the present invention provides a heat dissipation duct for a string-type energy storage battery compartment, which has the following beneficial effects:

[0012] 1. The cooling ducts in this string-type energy storage battery compartment achieve centralized placement of the battery cluster and energy storage converter by arranging the battery compartments in upper and lower layers. Sealing between the battery compartment and the energy storage converter compartment ensures proper ventilation and heat dissipation for the energy storage converter while preventing dust from entering the battery compartment and affecting the operation of the battery cluster.

[0013] 2. The heat dissipation air duct of this string energy storage battery compartment is formed by setting up an air chamber between the exhaust port at the bottom of the energy storage converter room and the air outlets of the two energy storage converters, and installing a guide plate in the air chamber. After the air intake and exhaust devices inside the energy storage converter are started, the outside cold air can enter from the front and back of the energy storage converter room, and the hot air after heat exchange can be discharged from the exhaust port, thus forming an air duct and completing the heat dissipation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front of the battery compartment of the present invention;

[0015] Figure 2 This is a schematic diagram of the back of the battery compartment of the present invention;

[0016] Figure 3 This is a side sectional view of the battery compartment of the utility model;

[0017] Figure 4 This is a schematic diagram of the overall exterior of the utility model;

[0018] Figure 5 This is a front view of the energy storage converter of the utility model;

[0019] Figure 6 This is a schematic diagram of the back side of the energy storage converter of the present invention.

[0020] Figure numerals: 1. Battery compartment; 1-1. Battery room; 1-2. Energy storage converter room; 1-3. Exhaust vent; 2. Battery cluster; 3. Energy storage converter; 3-1. Air inlet; 3-2. Air outlet; 4. Guide plate; 5. First ventilation mesh; 6. Door panel; 7. Second ventilation mesh; 8. Foundation. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-6 In this embodiment: a heat dissipation duct of a string type energy storage battery compartment includes a battery compartment 1, please refer to Figure 1-Figure 4 The interior of the battery compartment 1 is divided into two layers, the upper layer of the battery compartment 1, and the upper layer of the battery compartment 1 is the battery compartment 1-1. Two rows of battery clusters 2 are installed in parallel. The front and rear rows of battery clusters 2 are arranged back to back. Door panels 6 are rotatably installed in the front and rear of the battery compartment 1-1. The lower layer of the battery compartment 1 is the energy storage converter compartment 1-2. An energy storage converter 3 is installed in the lower layer corresponding to each battery cluster 2. The energy storage converters 3 corresponding to the battery clusters 2 are arranged in two rows. Every two energy storage converters 3 are arranged back to back. A second ventilation mesh plate 7 is installed in front and behind the device chamber 1-2. A filter is laid on the ventilation mesh of the second ventilation mesh plate 7. The battery chamber 1-1 and the energy storage converter chamber 1-2 are sealed. The energy storage converter 3 is centrally arranged in the energy storage converter chamber 1-2 at the bottom of the battery compartment 1. The energy storage converter chamber 1-2 is connected to the outside world. The battery cluster 2 is separately arranged in the battery chamber 1-1 and isolated from the energy storage converter chamber 1-2. In this way, the heat dissipation requirements of the energy storage converter 3 can be met, and the influence of dust on the battery cluster 2 can be avoided.

[0023] See also Figure 3 、 Figure 5 and Figure 6, the bottom of the energy storage converter room 1-2, and an exhaust port 1-3 is provided between each two energy storage converters 3 arranged back to back, the front of the energy storage converter 3 is provided with an air inlet 3-1, and the back is provided with an air outlet 3-2, the interior of the energy storage converter 3 has its own air inlet and exhaust device, and an air chamber is provided between the air outlet 3-2 of the two back-to-back energy storage converters 3 and the corresponding air outlet 1-3, and a guide plate 4 is installed inside the air chamber, and the guide plate 4 is located between the air outlet 3-2 of the two back-to-back energy storage converters 3, and the function of the guide plate 4 is to separate the hot air discharged from the two energy storage converters 3 in the air duct, and guide the two hot air to the exhaust port 1-3 at the same time, the air chamber and the guide plate 4 form an air duct as a whole, connecting the air outlet 3-2 of the energy storage converter 3 with the exhaust port 1 -3 is connected. When the air intake and exhaust devices inside the energy storage inverter 3 are started, the external cold air can pass through the second ventilation mesh plate 7 into the energy storage inverter chamber 1-2, and then be sucked into the energy storage inverter 3 from the air inlet 3-1, complete heat exchange with the heating elements inside the energy storage inverter 3 and become hot air. The hot air is then discharged from the air outlet 3-2, and then passes through the air duct and the exhaust port 1-3, and finally discharged from the bottom of the battery compartment 1. The exhaust port 1-3 is provided with a first ventilation mesh plate 5, and the ventilation mesh holes of the first ventilation mesh plate 5 are covered with a filter. A foundation 8 is provided under the battery compartment 1, and the battery compartment 1 is installed on the foundation 8. The shape of the foundation 8 is in the shape of a mouth, and vents are provided around it. The hot air discharged from the bottom of the battery compartment 1 can be discharged to the outside air through the vents around the foundation 8.

[0024] The working principle and usage process of the present invention are as follows: when the equipment is running, the external cold air is attracted into the energy storage converter room 1-2 through the air inlet and exhaust devices inside the energy storage converter 3, and enters the energy storage converter 3 from the air inlet 3-1 to undergo heat exchange with the heating element and turns into hot air. The hot air is discharged into the air chamber through the air outlet 3-2, and then guided to the air outlet 1-3 through the guide plate 4, and finally discharged from the battery compartment 1 from the air outlet 1-3. Finally, the hot air is discharged to the outside through the vents around the foundation 8, completing the heat dissipation cycle.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heat dissipation duct for a string-type energy storage battery compartment, comprising a battery compartment (1), characterized in that: The interior of the battery compartment (1) is divided into two layers, upper and lower, by a transverse partition. The upper space of the battery compartment (1) is a battery chamber (1-1), in which two rows of battery clusters (2) are installed in parallel, and the battery clusters (2) in the front and rear rows are arranged back to back. The lower space of the battery compartment (1) is an energy storage converter chamber (1-2), and an energy storage converter (3) is installed in the lower space corresponding to each battery cluster. The energy storage converters (3) corresponding to the battery clusters (2) are arranged in two rows, and every two energy storage converters (3) are arranged back to back. The battery chamber (1-1) and the energy storage converter chamber (1-2) are sealed. An exhaust port (1-3) is provided at the bottom of the energy storage converter chamber (1-2) and between each two energy storage converters (3) arranged back to back. An air inlet (3-1) is provided on the front of each energy storage converter (3), and an air outlet (3-2) is provided on the back of each energy storage converter (3). An air chamber is provided between the air outlets (3-2) of the two back-to-back energy storage converters (3) and the corresponding exhaust port (1-3). A guide plate (4) is installed inside the air chamber, and the guide plate (4) is located between the air outlets (3-2) of the two back-to-back energy storage converters (3).

2. The heat dissipation duct of a string-type energy storage battery compartment according to claim 1, characterized in that: A first ventilation mesh plate (5) is installed at the air outlet (1-3), and a filter is laid on the ventilation mesh holes of the first ventilation mesh plate (5).

3. The heat dissipation duct of a string-type energy storage battery compartment according to claim 1, characterized in that: Door panels (6) are rotatably mounted on the front and rear of the battery chamber (1-1).

4. The heat dissipation duct for a string-type energy storage battery compartment according to claim 1, characterized in that: Second ventilation mesh plates (7) are installed on the front and rear of the energy storage converter chamber (1-2), and filter screens are laid on the ventilation mesh holes of the second ventilation mesh plates (7).

5. The heat dissipation duct of a string-type energy storage battery compartment according to claim 1, characterized in that: A foundation (8) is provided below the battery compartment (1), and the battery compartment (1) is mounted on the foundation (8). The foundation (8) is in the shape of a square, and vents are provided around the foundation.

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