Electricity storage equipment with overhead liquid cooling temperature control unit

Abstract

The utility model relates to the technical field of power storage equipment, in particular to power storage equipment with an overhead liquid cooling temperature control unit, which comprises a shell, a cooling chamber is arranged at the upper part of the shell, a storage chamber used for placing a battery pack is arranged at the lower part of the shell, a cooling assembly is arranged in the cooling chamber, and the cooling assembly comprises a liquid storage tank used for storing cooling liquid. And a circulating pump for providing power for circulation of the cooling liquid is installed at the discharging end of the liquid storage tank, an auxiliary heat exchange device is arranged at the feeding end of the liquid storage tank, and the auxiliary heat exchange device can conduct active cooling according to requirements and conduct rapid cooling on the cooling liquid in the feeding pipe, so that the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power storage equipment, and in particular to a power storage equipment with a smaller footprint and better heat dissipation effect. Background Art

[0002] Cabinet-type power storage equipment can be used as a backup power source to store electrical energy. It can continue to provide electrical energy to maintain normal power supply to special equipment after a power outage. Its main structure is to place battery packs in the cabinet to store electrical energy. Battery packs are mostly stacked in the cabinet when placed. The distance between two adjacent battery packs is very small, and there is not enough gap for good ventilation and heat dissipation. If the heat generated by the battery pack during use cannot be quickly eliminated, the temperature of the entire equipment will rise rapidly, eventually causing fire or explosion problems, directly affecting the safe production.

[0003] To address this problem, the current solution is to add a heat dissipation device to the battery pack and connect the existing heat dissipation device to the cabinet-type electric shock device, ultimately achieving the purpose of dissipating heat for the battery pack. However, most external heat dissipation devices cannot achieve uniform heat dissipation, resulting in uneven heat dissipation of the battery pack. In addition, the external device requires additional floor space, which is inconvenient for installation and subsequent maintenance in some small working spaces. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and to provide a power storage device which has a cooling device installed on the top of a cabinet to reduce the volume of the entire device and has a better heat dissipation effect.

[0005] The utility model is realized by the following technical scheme: an electric storage device with a top-mounted liquid cooling temperature control unit, comprising a shell, a cooling chamber is arranged at the upper part of the shell, a storage chamber for placing a battery pack is arranged at the lower part, a cooling assembly is arranged in the cooling chamber, and a circulation pipe group extending into the cooling chamber is arranged in the storage chamber;

[0006] The cooling assembly comprises a liquid storage tank, a circulating pump for providing power for the circulation of the coolant is arranged at the discharge end of the liquid storage tank, and an auxiliary heat exchange device is arranged at the feed end of the liquid storage tank;

[0007] The circulation pipe group includes a discharge pipe and a feed pipe respectively connected to the liquid storage tank, and the discharge pipe and the feed pipe are both provided with a connecting pipe connected to the interior of the storage chamber.

[0008] Furthermore, the number of the storage chambers is multiple and evenly distributed along the height direction of the shell, and the number of the connecting pipes is the same as the number of the storage chambers.

[0009] Furthermore, a plurality of the connecting pipes are connected in parallel with the discharge pipe and the feed pipe, and three-way quick-connect connectors are provided at the connection points.

[0010] Furthermore, a vertically installed partition is provided in the storage chamber, an interlayer is formed between the partition and the inner wall of the storage chamber, and a branch pipe group is provided in the interlayer.

[0011] Furthermore, the branch pipe group includes a shunt pipe and a return pipe respectively located on both sides of the battery group, and a cooling pipe is arranged between the shunt pipe and the feed pipe.

[0012] Furthermore, the cooling tube is in an inverted U shape and is in multiple numbers and evenly distributed along the length direction of the battery pack, and a heat conducting plate is provided on the inner side of each cooling tube.

[0013] Furthermore, the auxiliary heat exchange device includes a plate heat exchanger, an air-cooled microchannel radiator and a compressor, and a fan located outside the air-cooled microchannel radiator is arranged on the outer side wall of the shell.

[0014] The beneficial effect of the utility model is that the power storage device with a top-mounted liquid-cooled temperature control unit comprises a shell, a cooling chamber is provided at the upper part of the shell, a storage chamber for placing a battery pack is provided at the lower part, a cooling component is installed in the cooling chamber, the cooling component comprises a liquid storage tank for storing coolant, a circulating pump for providing power for the circulation of the coolant is installed at the discharge end of the liquid storage tank, an auxiliary heat exchange device is provided at the feed end of the liquid storage tank, the auxiliary heat exchange device can actively cool down according to demand, and quickly cool down the coolant in the feed pipe, thereby improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the circulation pipe group in the utility model;

[0018] Figure 4 It is a cross-sectional view of the storage chamber in the utility model;

[0019] Figure 5 It is a schematic diagram of the flow of the circulation system of the coolant in the utility model.

[0020] Among them: 1-shell; 2-cooling chamber; 3-storage chamber; 4-liquid storage tank; 5-circulation pump; 6-discharge pipe; 7-feed pipe; 8-connecting pipe; 9-partition; 10-interlayer; 11-diverter pipe; 12-reflux pipe; 13-cooling pipe; 14-heat conduction plate; 15-plate heat exchanger; 16-air-cooled microchannel radiator; 17-compressor; 18-fan. DETAILED DESCRIPTION

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in 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.

[0023] Example 1

[0024] like Figure 1-5 As shown, a power storage device with a top-mounted liquid cooling temperature control unit comprises a shell 1, a cooling chamber 2 is provided on the upper part of the shell 1, and a storage chamber 3 for placing a battery pack is provided on the lower part. A cooling component is installed in the cooling chamber 2, and a circulation pipe group extending into the cooling chamber 2 is provided in the storage chamber 3. The cooling component is installed on the upper part of the entire shell 1. Compared with the existing external cooling equipment, the occupied area is smaller. In the early installation, the cooling can be directly introduced into the storage chamber 3 through the circulation pipe group to avoid secondary installation.

[0025] The cooling assembly includes a liquid storage tank 4 for storing coolant, a circulating pump 5 for providing power for the circulation of the coolant is installed at the discharge end of the liquid storage tank 4, and an auxiliary heat exchange device is provided at the feed end of the liquid storage tank 4. The auxiliary heat exchange device can actively cool down according to demand and quickly cool down the coolant in the feed pipe 7, thereby improving the cooling effect;

[0026] The circulation pipe group includes a discharge pipe 6 and a feed pipe 7 respectively connected to the liquid storage tank 4. The circulation pump 5 is installed on the discharge pipe 6. The discharge pipe 6 and the feed pipe 7 are both provided with a connecting pipe 8 connected to the interior of the storage chamber 3. The connecting pipe 8 is used to complete the circulation of the coolant in the storage chamber 3.

[0027] There are multiple storage chambers 3 that are evenly distributed along the height direction of the shell 1 , and the number of connecting pipes is the same as the number of storage chambers 3 .

[0028] A plurality of connecting pipes 8 are connected in parallel with the discharge pipe 6 and the feed pipe 7, and three-way quick-connect connectors are provided at the connection points.

[0029] A vertically installed partition 9 is provided in the storage chamber 3, and an interlayer 10 is formed between the partition 9 and the inner wall of the storage chamber 3. A branch pipe group connected to the connecting pipe 8 is installed in the interlayer 10. The branch pipe group is used to complete the distribution of the coolant in the storage chamber 3, so as to improve the cooling effect and make the cooling of the cooling battery pack more uniform.

[0030] The branch pipe group includes a shunt pipe 11 and a return pipe 12 respectively located on both sides of the battery pack. The shunt pipe 11 and the feed pipe 7 are connected by a cooling pipe 13, and the cooling pipe 13 covers the surface of the battery pack to absorb heat.

[0031] The cooling tube 13 is inverted U-shaped and there are multiple cooling tubes 13 evenly distributed along the length direction of the battery pack. A heat conducting plate 14 is provided on the inner side of each cooling tube 13. The heat conducting plate 14 is in contact with the outer wall of the baffle. A slot is provided on the surface of the heat conducting plate 14. The cooling tube 13 is buried in the slot for fixing. The cooling tube 13 located above the battery pack can cool the upper and lower storage chambers 3 at the same time.

[0032] The auxiliary heat exchange device includes a plate heat exchanger 15, an air-cooled microchannel radiator 16 and a compressor 17. A fan 18 located on the outside of the air-cooled microchannel radiator 16 is installed on the outer wall of the shell 1. The plate heat exchanger 15 is installed on the feed pipe 7. The cold air of the compressor 17 is transported into the plate heat exchanger 15 after condensation by the air-cooled microchannel radiator 16 to cool the coolant after absorbing heat. The auxiliary heat exchange equipment can be manually opened during operation. According to the specific situation, the compressor 17 intervenes to actively cool down when the temperature rises.

[0033] Working principle: During normal use, the circulation pump 5 provides power for the circulation of the coolant. After the coolant flows out of the liquid storage tank 4, it passes through the discharge pipe 6, the plate heat exchanger 15, and the feed pipe 7 in sequence and then flows back to the liquid storage tank 4. After the cross-section of the coolant is increased at the plate heat exchanger 15, the air flow is used to dissipate the heat. After the heat dissipation is completed, it returns to the liquid storage tank 4 through the feed pipe 7. At this time, the heat dissipation of the coolant is passively dissipated by using the fan on the shell 1 to drive the air flow. After the auxiliary heat exchange equipment is installed, the compressor 17 starts to work when the temperature of the shell 1 rises to the set value. The compressed gas is condensed by the air-cooled microchannel radiator 16 and then transported into the plate heat exchanger 15 to participate in the heat exchange operation, thereby accelerating the cooling of the coolant and effectively achieving rapid cooling.

[0034] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric storage device with a top-mounted liquid cooling temperature control unit, characterized in that: The invention comprises a shell, wherein the upper part of the shell is provided with a cooling chamber, the lower part of the shell is provided with a storage chamber for placing a battery pack, the cooling chamber is provided with a cooling assembly, and the storage chamber is provided with a circulation pipe group extending into the cooling chamber; The cooling assembly comprises a liquid storage tank, a circulating pump for providing power for the circulation of the coolant is arranged at the discharge end of the liquid storage tank, and an auxiliary heat exchange device is arranged at the feed end of the liquid storage tank; The circulation pipe group includes a discharge pipe and a feed pipe respectively connected to the liquid storage tank, and the discharge pipe and the feed pipe are both provided with a connecting pipe connected to the interior of the storage chamber.

2. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 1, characterized in that: The number of the storage chambers is multiple and evenly distributed along the height direction of the shell, and the number of the connecting pipes is the same as the number of the storage chambers.

3. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 2, characterized in that: The plurality of connecting pipes are connected in parallel with the discharge pipe and the feed pipe, and three-way quick-plug connectors are provided at the connection points.

4. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 1, characterized in that: A vertically installed partition is arranged in the storage chamber, a sandwich is formed between the partition and the inner wall of the storage chamber, and a branch pipe group is arranged in the sandwich.

5. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 4, characterized in that: The branch pipe group includes a shunt pipe and a return pipe respectively located on both sides of the battery group, and a cooling pipe is arranged between the shunt pipe and the feed pipe.

6. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 5, characterized in that: The cooling tubes are in an inverted U shape and are multiple and evenly distributed along the length direction of the battery pack. A heat conducting plate is arranged on the inner side of each cooling tube.

7. The power storage device with a top-mounted liquid cooling temperature control unit according to claim 1, characterized in that: The auxiliary heat exchange device comprises a plate heat exchanger, an air-cooled micro-channel radiator and a compressor. A fan located outside the air-cooled micro-channel radiator is arranged on the outer side wall of the shell.

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