CN222562795U - Energy storage cabinet air conditioning unit and energy storage cabinet - Google Patents

Abstract

The utility model discloses an energy storage cabinet air conditioning unit and an energy storage cabinet, which comprise a shell, a direct cooling plate, a compressor, a heat exchanger, a flash evaporator, a four-way valve, an electric control box and a heat dissipation fan, wherein the compressor, the four-way valve, the direct cooling plate, the flash evaporator and the heat exchanger are sequentially connected through refrigerant pipelines to form a refrigerant circulation loop, one end of a refrigerant pipeline A between the direct cooling plate and the flash evaporator is connected with a refrigerant channel outlet of the direct cooling plate, the other end of the refrigerant pipeline A is connected with a gas-liquid two-phase refrigerant inlet of the flash evaporator, a first throttle valve is arranged on the refrigerant pipeline A, one end of a refrigerant pipeline B between the flash evaporator and the heat exchanger is connected with a liquid refrigerant outlet of the flash evaporator, the other end of the refrigerant pipeline B is connected with a liquid refrigerant inlet of the heat exchanger, a second throttle valve is arranged on the refrigerant pipeline B, and a vapor refrigerant outlet of the flash evaporator is connected with a gas supplementing port of the compressor. The utility model has compact structure, and the flash evaporator realizes the enthalpy increasing effect, thereby improving the exhaust capacity of the compressor and achieving the purpose of improving the heating capacity in a low-temperature environment.

Description

Energy storage cabinet air conditioning unit and energy storage cabinet

Technical Field

The utility model relates to the technical field of energy storage, in particular to structural improvement of an air conditioning unit of an energy storage cabinet.

Background

The energy storage cabinet can generate a large amount of heat in the use process, if the heat is not timely radiated, the temperature in the cabinet can be gradually increased, after the temperature is increased to a certain degree, the use function (such as charge and discharge performance) of the battery cabinet is affected, and even the risk of explosion occurs, and meanwhile, when the environment temperature is too low, such as winter, the low-temperature environment can cause the problems of serious power failure, incapability of normal charge and discharge, shortened service life and the like of the battery. Therefore, the energy storage cabinet is typically configured with an air conditioning product to control the battery temperature within a suitable range.

Air-conditioning products of energy storage cabinets on the market are commonly and two types, namely an air-cooling type and a liquid-cooling type. Liquid cooling has gradually become the primary means of energy storage and temperature control. The liquid cooling temperature control product is large in volume and heavy in weight, and is difficult to operate in maintenance, replacement and movement. The huge volume causes the cost to be too high, the occupied area is large, and the storage space of the battery of the energy storage cabinet is occupied. Meanwhile, the liquid cooling energy storage temperature control product in the market is high in energy consumption and low in energy efficiency ratio, and a large amount of electric energy is consumed while the battery is cooled, so that the liquid cooling energy storage temperature control product is not suitable for the current low-carbon energy-saving development trend. And the energy storage liquid cooling technology also has the problems of low temperature rising and falling speed, poor battery core temperature uniformity, low energy conversion efficiency and high system cost.

With the development of energy storage battery technology, high-capacity battery cells are gradually applied, the installed density of an energy storage system is gradually increased, the capability requirement on temperature control products is increased, and the defects of low temperature rising and falling speed, poor battery cell temperature uniformity, low energy conversion efficiency and high system cost of the liquid cooling temperature control products are gradually obvious. In order to adapt to the development of the energy storage industry, the temperature control rate, the temperature uniformity and the energy conversion efficiency of the battery cells of the energy storage cabinet are improved, the system cost is reduced, a direct cooling system is arranged on the energy storage cabinet at present, the temperature control of the energy storage battery is carried out by directly carrying out heat exchange between a refrigerant and the energy storage battery of the energy storage cabinet, the temperature control rate and the system conversion rate of the energy storage battery are greatly improved, and the system cost is reduced.

However, the direct cooling air conditioner applied to the energy storage cabinet at present is mostly of split type structural design, and comprises a direct cooling plate, a heat exchanger, a compressor, a fan, an electric control box, a refrigerant pipeline and the like, wherein the split type structure cannot effectively and reasonably utilize the space in the cabinet, the effective installation space of a battery in the cabinet is influenced, the capacity of the battery is further influenced, and the split type structure is inconvenient to disassemble, assemble or maintain.

Meanwhile, when the current energy storage direct-cooling air conditioner heats, when the environment is very low, the evaporation temperature of the compressor is low at low ambient temperature, the heating effect is poor, and the requirements of customers are not met.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background art, the utility model provides an energy storage cabinet air conditioning unit and an energy storage cabinet, which are used for carrying out layout optimization on internal components of an air conditioner, so that the air conditioner is compact in structure, convenient to assemble, disassemble and maintain, and capable of meeting the heating capacity requirement in a low-temperature environment.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

In some embodiments of the present application, there is provided an energy storage cabinet air conditioning unit, the energy storage cabinet air conditioning unit having a horizontal structure, including:

The shell is provided with an air return opening on a front side plate and an air outlet on a rear side plate, and the air return opening and the air outlet extend along the left-right direction of the shell;

The air conditioner comprises a shell, a compressor, a heat exchanger, a flash evaporator, a four-way valve, an electric control box and a heat dissipation fan, wherein the compressor, the heat exchanger, the flash evaporator, the electric control box and the heat dissipation fan are arranged on a bottom plate of the shell;

The direct cooling plate is arranged outside the shell and is at least used for carrying out heat exchange with an energy storage battery in the energy storage cabinet, and a refrigerant flow passage is formed inside the direct cooling plate;

the compressor, the four-way valve, the direct cooling plate, the flash evaporator and the heat exchanger are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop;

The flash evaporator is provided with a gas-liquid two-phase refrigerant inlet, a liquid refrigerant outlet and a vapor refrigerant outlet, one end of a refrigerant pipeline A section positioned between the direct cooling plate and the flash evaporator is connected with the refrigerant flow passage outlet of the direct cooling plate, the other end of the refrigerant pipeline A section is connected with the gas-liquid two-phase refrigerant inlet of the flash evaporator, a first throttle valve is arranged on the refrigerant pipeline A section, one end of a refrigerant pipeline B section positioned between the flash evaporator and the heat exchanger is connected with the liquid refrigerant outlet of the flash evaporator, the other end of the refrigerant pipeline B section is connected with the liquid refrigerant inlet of the heat exchanger, a second throttle valve is arranged on the refrigerant pipeline B section, and the vapor refrigerant outlet of the flash evaporator is connected with a gas supplementing port of the compressor.

In some embodiments of the present application, the flash evaporator is vertically disposed on a bottom plate of the housing, the gas-liquid two-phase refrigerant inlet and the liquid refrigerant outlet are located at a bottom of the flash evaporator, and the vapor refrigerant outlet is located at a top of the flash evaporator.

In some embodiments of the present application, the flash evaporator is located on the side where the compressor is located, and a space-avoiding portion is located between the electric control box and the compressor, and the space-avoiding portion is opposite to the heat exchanger.

In some embodiments of the present application, two heat dissipation fans are arranged at intervals along the left-right direction of the shell, the two heat dissipation fans are installed on the same fan support assembly, the fan support comprises a main installation plate extending along the left-right direction of the shell and a fan support arranged at the rear side of the main installation plate and extending along the left-right direction of the shell, the air suction end of the heat dissipation fan is fixedly connected to the main installation plate, the air outlet end is fixedly connected to the fan support, and the main installation plate is provided with a through part corresponding to the air suction ends of the two heat dissipation fans.

In some embodiments of the present application, air outlet avoidance holes are respectively formed at the left and right end portions of the fan bracket and between two adjacent heat dissipation fans.

In some embodiments of the present application, the electric control box is attached to a left side plate of the casing, the left side plate of the casing is composed of a detachable first side plate and a detachable second side plate, the first side plate is opposite to an electric control box cover of the electric control box, the electric control box cover is detachable, and the second side plate is opposite to an area where the heat exchanger and the heat dissipation fan are located.

In some embodiments of the application, the electrical control box is provided with a radiator positioned on the return air flow path.

In some embodiments of the application, the front side plate of the shell is provided with a drawing handle positioned outside the left end and the right end of the return air inlet.

In some embodiments of the present application, an energy storage cabinet air conditioning unit, the energy storage cabinet air conditioning unit being of a horizontal structure, includes:

The shell is provided with an air return opening on a front side plate and an air outlet on a rear side plate, and the air return opening and the air outlet extend along the left-right direction of the shell;

The compressor, the heat exchanger, the flash evaporator, the electric control box and the heat dissipation fan are all arranged on a bottom plate of the shell; the heat exchanger and the heat dissipation fan are positioned at the air outlet, the heat exchanger also extends along the left-right direction of the shell, and the heat dissipation fan is positioned between the heat exchanger and the air outlet;

The direct cooling plate is arranged outside the shell and is at least used for carrying out heat exchange with an energy storage battery in the energy storage cabinet, and a refrigerant flow passage is formed inside the direct cooling plate;

the compressor, the four-way valve, the direct cooling plate, the flash evaporator and the heat exchanger are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop;

The flash evaporator is provided with a gas-liquid two-phase refrigerant inlet, a liquid refrigerant outlet and a vapor refrigerant outlet, one end of a refrigerant pipeline A section positioned between the direct cooling plate and the flash evaporator is connected with the refrigerant flow passage outlet of the direct cooling plate, the other end of the refrigerant pipeline A section is connected with the gas-liquid two-phase refrigerant inlet of the flash evaporator, a first throttle valve is arranged on the refrigerant pipeline A section, one end of a refrigerant pipeline B section positioned between the flash evaporator and the heat exchanger is connected with the liquid refrigerant outlet of the flash evaporator, the other end of the refrigerant pipeline B section is connected with the liquid refrigerant inlet of the heat exchanger, a second throttle valve is arranged on the refrigerant pipeline B section, and the vapor refrigerant outlet of the flash evaporator is connected with a gas supplementing port of the compressor.

In some embodiments of the present application, there is also provided an energy storage cabinet, including:

The cabinet body, the inner space of the cabinet body includes air conditioning storehouse and energy storage storehouse, the said energy storage storehouse is used for holding the energy storage battery at least, there are through parts in the position corresponding to said air conditioning storehouse on the said cabinet body;

the air conditioning unit is the energy storage cabinet air conditioning unit, the shell is arranged in the air conditioning bin, and the direct cooling plate is arranged in the energy storage bin.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. The air conditioning unit of the energy storage cabinet is of a horizontal structure, has stable gravity center, is convenient to install at the top of the energy storage cabinet, and can be increased in height so as to be additionally provided with the air conditioning bin for placing the air conditioning unit of the energy storage cabinet, so that the space of the energy storage bin is not occupied, and the capacity of a battery is not influenced;

2. The main structural components (except the direct cooling plate) of the air conditioning unit of the energy storage cabinet are integrated in the shell to form an integral module, so that the whole air conditioning unit is convenient to assemble, disassemble and maintain;

3. The flash evaporator is arranged in the refrigerant circulation loop of the air conditioning unit of the energy storage cabinet, and can separate the gaseous refrigerant and the solid refrigerant, and the separated liquid refrigerant enters the heat exchanger (corresponding to the evaporator when heating) under the action of the compressor, and meanwhile, the separated gaseous refrigerant directly enters the compressor through the steam refrigerant outlet of the flash evaporator, so that the enthalpy increasing effect is realized, the exhaust capacity of the compressor is improved, and the aim of improving the heating capacity under the low-temperature environment is fulfilled.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a front side view angle structure of an energy storage cabinet according to an embodiment;

fig. 2 is a schematic view of a rear front side view angle structure of the energy storage cabinet according to the embodiment with a cabinet door omitted;

FIG. 3 is a schematic diagram of a refrigerant circulation loop of an energy storage cabinet air conditioning unit according to an embodiment;

fig. 4 is a schematic view of a rear front side view angle structure of an energy storage cabinet air conditioning unit with a direct cooling plate omitted according to an embodiment;

Fig. 5 is a schematic diagram of a rear-side view angle structure of an energy storage cabinet air conditioning unit with a direct cooling plate omitted according to an embodiment;

fig. 6 is a schematic structural diagram of an energy storage cabinet air conditioning unit according to an embodiment omitting a direct cooling plate, a front side plate of a housing, and a rear view of a top plate;

FIG. 7 is a schematic view of an energy storage air conditioning unit according to an embodiment with the direct cooling plate, the front side plate of the housing and the top plate omitted from another view;

Fig. 8 is a schematic structural diagram of an energy storage cabinet air conditioning unit according to an embodiment with a view angle of a direct cooling plate, a front side plate of a housing, and a top plate omitted;

FIG. 9 is a schematic view of a structure of an energy storage cabinet air conditioning unit according to an embodiment with a direct cooling plate, a front side plate of a housing, a top plate, and a portion of a left side plate omitted;

Fig. 10 is a schematic structural view of the energy storage cabinet air conditioning unit according to the embodiment after omitting a direct cooling plate, a front side plate, a top plate, a part of a left side plate and an electric control box cover;

Fig. 11 is a schematic structural diagram of an energy storage cabinet air conditioning unit according to an embodiment after omitting a direct cooling plate, a front side plate, a top plate and a rear side plate of a housing;

FIG. 12 is a schematic view of a direct cooling plate structure of an energy storage cabinet according to an embodiment;

Fig. 13 is an exploded view of fig. 12.

Reference numerals:

1. The energy storage cabinet comprises 100 parts, a cabinet body, 110 parts, an air conditioning cabinet, 120 parts, 130 parts, a cabinet door, 200 parts, 210 parts, a shell, 211 parts, a first side plate, 212 parts, a second side plate, 213 parts, a return air inlet, 214 parts, an air outlet, 220 parts, a compressor, 230 parts, a heat exchanger, 240 parts, a flash evaporator, 250 parts, an electric control box, 251 parts, an electric control box cover, 252 parts, a radiator, 260 parts, a heat dissipation fan, 270 parts, a first throttle valve, 280 parts, a second throttle valve, 290 parts, a three-way stop valve, 2100 parts, an empty-keeping part, 2110 parts, a fan bracket, 2111 parts, a main mounting plate, 2112 parts, a U-shaped bracket, 2120 parts, a mounting angle code, 2130 parts, a drawing handle, 2 parts, an internal pipeline, 2150 parts, a four-way valve, 2160 parts, a straight cold plate, 2161 parts, a refrigerant flow channel, 2 parts, a refrigerant inlet, 2163 parts, a refrigerant outlet, 2164 parts, an upper cover, a base plate, 2170 parts, a refrigerant pipeline A section 2180 parts, a 2190 parts, an external pipeline, 300 parts, a joint part, a connector part, 400 parts, a heat insulation layer, a support plate, 500 parts, and 500 parts;

2. An energy storage battery.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 and 7, in some embodiments of the present application, an energy storage cabinet 1 is provided, including a cabinet body 100, and an air conditioning unit 200.

The cabinet 100 is generally a rectangular cabinet, and the internal space thereof includes an air conditioning bin 110 and an energy storage bin 120, wherein the air conditioning bin 110 and the energy storage bin 120 are independent from each other. The cabinet body 100 has a front opening and is provided with a cabinet door 130 for opening and closing the energy storage cabinet.

The energy storage bin 120 is at least used for accommodating a battery, specifically the energy storage battery 2, and is arranged in the energy storage bin 120 in a battery PACK form formed by packaging battery clusters. In some embodiments of the present application, the storage bin 120 is also used to house a battery PCS.

The air conditioning unit 200 is used for temperature adjustment of the energy storage cabinet, constant temperature management of the energy storage cabinet, and is mainly used for temperature adjustment of the battery of the energy storage bin 120, so that the battery can work in an ideal temperature range interval, and the condition that the temperature of the battery is too high or too low is avoided.

When the air conditioning unit 200 is refrigerating, the temperature of the energy storage bin 120 is reduced. When the air conditioning unit 200 heats, the temperature of the energy storage bin 120 is adjusted.

The air conditioning unit 200 has an outer contour in a prolate square shape, and comprises a shell 210, a compressor 220 positioned in the shell 210, a heat exchanger 230, a flash evaporator 240, a four-way valve 2150, an electric control box 250 and a heat dissipation fan 260, and also comprises a direct cooling plate 2160, wherein the compressor 220, the heat exchanger 230, the electric control box 250 and the heat dissipation fan 260 are all arranged on a bottom plate of the shell 210.

The front side plate of the shell 210 is provided with an air return opening 213, the rear side plate is provided with an air outlet 214, and front air return and rear air outlet are realized, and the air return opening 213 and the air outlet 214 extend along the left and right directions of the shell. The housing 210 and its internal components (including at least the compressor 220, the heat exchanger 230, the flash evaporator 240, the four-way valve 2150, the electronic control box 250, the heat dissipation fan 260, and its connecting lines) are placed in the air conditioning bin 110 in a horizontal posture.

The air conditioning bin 110 is communicated with the corresponding positions of the air return opening 213 and the air outlet 214, the cabinet body 100 is provided with a through part at the corresponding position of the air conditioning bin 110 so as to be communicated with the corresponding positions of the air return opening 213 and the air outlet 214, the air conditioning unit 200 can return air and outlet air, and the through part is provided with a waterproof shutter and an insect-proof net.

The electric control box 250 and the compressor 220 are respectively positioned at the left end and the right end of the air return opening 213, the heat exchanger 230 and the heat dissipation fan 260 are positioned at the air outlet 214, the heat exchanger 230 also extends along the left-right direction of the shell, and the heat dissipation fan 260 is positioned between the heat exchanger 230 and the air outlet 214 so as to discharge the heat of the heat exchanger 230 during refrigeration through the air outlet 214.

The direct cooling plate 2160 is located outside the housing 210, and is disposed in the energy storage bin 120, at least for heat exchange with the energy storage battery 2, the direct cooling plate 2160 is internally formed with a refrigerant flow channel 2161, the refrigerant flow channel 2161 has a refrigerant inlet 2162 and a refrigerant outlet 2163, and the refrigerant in the refrigerant circulation loop flows through the direct cooling plate 2160 for heat exchange with the energy storage battery 2.

The compressor 220, the four-way valve 2150, the direct cooling plate 2160, the flash evaporator 240 and the heat exchanger 230 are sequentially connected through refrigerant lines to form a refrigerant circulation loop.

The flash evaporator 240 has a gas-liquid two-phase refrigerant inlet 241, a liquid refrigerant outlet 242 and a vapor refrigerant outlet 243, one end of a refrigerant pipe A section 2170 positioned between the direct cooling plate 2160 and the flash evaporator 240 is connected with a refrigerant outlet 2163 of the direct cooling plate 2160, the other end is connected with the gas-liquid two-phase refrigerant inlet 241 of the flash evaporator 240, a first throttle valve 270 is arranged on the refrigerant pipe A section 2170, one end of a refrigerant pipe B section 2180 positioned between the flash evaporator 240 and the heat exchanger 230 is connected with the liquid refrigerant outlet 242 of the flash evaporator 240, the other end is connected with the liquid refrigerant inlet of the heat exchanger 230, a second throttle valve 280 is arranged on the refrigerant pipe B section 2180, and the vapor refrigerant outlet 243 of the flash evaporator 240 is connected with a gas-supplementing port of the compressor 220.

During refrigeration, the refrigerant is compressed into high-temperature and high-pressure gas through the compressor 220, enters the heat exchanger 230 through the four-way valve 2150, is condensed and radiated through the radiating fan 260, becomes a medium-temperature and high-pressure liquid refrigerant, enters the flash evaporator 240 through the throttling of the first throttling valve 270, is throttled through the second throttling valve 280, is subjected to heat exchange through the direct cooling plate 2160, cools the energy storage battery 2, and returns to the compressor 220 after heat exchange, so that the refrigeration cycle is completed.

The throttle valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state formed by condensation in the heat exchanger 230 into a low-pressure liquid-phase refrigerant. The direct cooling plate 2160 (functioning as an evaporator) evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 220.

During heating, the four-way valve 2150 is reversed, the high-temperature and high-pressure refrigerant discharged by the compressor 220 enters the direct cooling plate 2160 through the four-way valve 2150, heat is released by condensation in the direct cooling plate 2160, the energy storage battery 2 is heated, then the temperature is throttled by the first throttle valve 270, the refrigerant enters the flash evaporator 240 through the gas-liquid two-phase refrigerant inlet 241, a part of refrigerant is flashed due to pressure reduction, the flashed refrigerant enters the compressor 220 through the vapor refrigerant outlet 243 and the air supplementing port of the compressor 220, and the liquid refrigerant cooled by the flash evaporator 240 flows out through the liquid refrigerant outlet 242 and enters the heat exchanger 230 (serving as a condenser) through the second throttle valve 280. The refrigerant is evaporated and absorbed by the heat exchanger 230, passes through the four-way valve 2160, and is sucked into the compressor 220, thereby completing the entire cycle.

The first throttle valve 270 is a main flow rate adjusting valve, the flow rate flowing through the system can be adjusted by adjusting the opening of the first throttle valve 270, and the flow rate and the air make-up rate of the refrigerant flowing through the evaporator can be adjusted by adjusting the second throttle valve 280.

The flash evaporator 240 can separate the gaseous refrigerant and the solid refrigerant, and make the separated liquid refrigerant enter the heat exchanger 230 (corresponding to the evaporator during heating) under the action of the compressor 220, and at the same time make the separated gaseous refrigerant directly enter the compressor 220 through the vapor refrigerant outlet 243 of the flash evaporator 240, so as to achieve the enthalpy increasing effect, thereby improving the exhaust capacity of the compressor 220 and achieving the purpose of improving the heating capacity in a low-temperature environment.

The energy storage cabinet 1 in the embodiment of the application partitions the internal space of the cabinet body 100 to reasonably install and arrange the shell 210 and the internal components thereof, the direct cooling plate 2160 and the energy storage battery 2 of the air conditioning unit 200, so that the internal structure of the energy storage cabinet is compact, the improvement of the battery capacity is facilitated, the battery temperature control is directly carried out by heat exchange between the direct cooling plate 2160 and the energy storage battery 2 through coolant, the temperature control efficiency is effectively improved, the main structural components (except the direct cooling plate 2160) of the air conditioning unit of the energy storage cabinet are integrated in the shell 210 to form an integral module, the whole machine is convenient to disassemble and maintain, the structural components in the shell 210 are reasonably installed and arranged, the internal structure of the air conditioning unit of the energy storage cabinet is compact, the gravity center is stable and is convenient to install at the top of the energy storage cabinet, the battery installation space is not occupied, the air conditioning unit 200 adopts front air return and rear air outlet 213 and air outlet 214, the electric control box 250 and the compressor 220 are respectively positioned at the left end and the right end of the air outlet 213, the heat exchanger 230 and the heat radiator 260 are positioned at the air outlet 214, the heat radiator 260 is positioned between the heat exchanger 230 and the air outlet 214, and the gravity center of the air outlet 214 is ensured, and the stability is improved.

In some embodiments of the present application, the flash evaporator 240 is vertically disposed on the bottom plate of the housing 210, the gas-liquid two-phase refrigerant inlet 241 and the liquid refrigerant outlet 242 are located at the bottom of the flash evaporator, and the vapor refrigerant outlet 243 is located at the top of the flash evaporator 240, so that the gaseous refrigerant floats upwards and the liquid refrigerant descends.

Since the number of the energy storage batteries 2 in the energy storage cabinet 1 is generally plural, in order to improve the temperature control efficiency and the uniformity of the temperature of each battery, in some embodiments of the present application, the number of the direct cooling plates 2160 is plural and is arranged in a one-to-one correspondence with the plurality of the energy storage batteries 2, and the plurality of direct cooling plates 2160 are connected in parallel to the refrigerant circulation circuit, and only one energy storage battery 2 is illustrated in fig. 3.

In some embodiments of the present application, a plurality of direct cooling plates 2160 are disposed in the energy storage bin 120 at intervals along the height direction of the cabinet 100, and the energy storage battery 2 is correspondingly disposed above the direct cooling plates 2160, and the direct cooling plates 2160 are in contact with the bottom surface of the energy storage battery 2, so as to further improve the temperature control efficiency.

In some embodiments of the present application, the insulation layer 400 is designed at the lower portion of the direct cooling plate 2160, so as to avoid condensation and cooling loss.

In some embodiments of the present application, the air conditioning bin 110 is located above the energy storage bin 120 and at the top of the cabinet 100. Each energy storage battery 2 is positioned below the air conditioning unit 200, so that the energy storage batteries 2 can be conveniently taken and placed.

In some embodiments of the present application, a plurality of horizontally disposed support plates 500 are fixed in the energy storage bin 120 at intervals along the height direction of the cabinet 100, and the direct cooling plates 2160 are correspondingly supported on the support plates 500. The insulation 400 is sandwiched between the direct cooling plate 2160 and the support plate 500.

As shown in FIG. 3, the flash evaporator 240 is located at the side of the compressor 220 to facilitate the connection of the pipeline, and a clearance portion 2100 is provided between the electric control box 250 and the compressor 220, where the clearance portion 2100 is opposite to the heat exchanger 230, i.e. a larger distance is provided between the electric control box 250 and the compressor 220, and the clearance portion is designed to ensure smooth flow of return air and improve the return air capacity, and the electric control box 250 and the compressor 220 are located at two ends of the return air inlet 213 respectively, so that the gravity center stability of the whole machine is ensured.

Referring to fig. 6 to 11, in some embodiments of the present application, two heat dissipation fans 260 are disposed at intervals along the left-right direction of the housing to increase the air volume and thus the heat dissipation effect.

The two heat dissipation fans 260 are mounted on the same fan bracket 2110, the fan bracket 2110 comprises a main mounting plate 2111 extending along the left-right direction of the housing and a fan bracket 2112 arranged on the rear side of the main mounting plate 2111 and extending along the left-right direction of the housing, the periphery of the main mounting plate 2111 is fixedly connected with a corresponding side plate of the housing 210, the air suction end of the heat dissipation fan 260 is fixedly connected with the main mounting plate 2111, the air outlet end is fixedly connected with the fan bracket 2112, and a through part corresponding to the air suction ends of the two heat dissipation fans 260 is arranged on the main mounting plate 2111.

The two heat dissipation fans 260 are installed on the same fan support 2110 and can be used as an integral fan module, and before installation, the integral fan module can be assembled into a whole in advance and then is integrally installed in the shell 210, so that the assembly efficiency is improved, and the assembly difficulty is reduced.

In some embodiments of the present application, air outlet avoidance holes are respectively formed at the left and right end portions of the fan bracket 2112 and between two adjacent heat dissipation fans 260, so as to reduce wind resistance and improve wind field.

The cabinet body 100 is provided with the partition plate 600 in the inner space thereof, the inner space of the cabinet is divided into the upper independent bin and the lower independent bin, the air conditioning bin 110 is arranged above the cabinet body, the energy storage bin 120 is arranged below the cabinet body, and water and dust entering the air conditioning bin 110 cannot enter the energy storage bin 120, so that potential safety hazards such as short circuit and the like caused by water inlet and dust inlet of the energy storage battery 2 and the like can be avoided.

The mounting angle 2120 is provided on the bottom plate of the housing 210 of the air conditioning unit 200, and the air conditioning unit 200 is integrally fixed to the partition plate 600 by means of screw fastening.

In some embodiments of the present application, the front side plate of the housing 210 is provided with pull handles 2130 located outside the left and right ends of the air return opening 213. The air conditioning unit 200 can be detached from the cabinet 100 by detaching the screw, and the whole air conditioning unit 200 can be conveniently pulled out by holding the pulling handle 2130.

In some embodiments of the present application, referring to fig. 7 to 9, an electric control box 250 is disposed on a left side plate of a housing 210, the left side plate of the housing 210 is composed of a detachable first side plate 211 and a second side plate 212, the first side plate 211 is opposite to an electric control box cover 251 of the electric control box 250, the electric control box cover 251 is detachable, and the second side plate 212 is opposite to a region where a heat exchanger 230 and a heat dissipation fan 260 are located. The first side plate 211 may serve as a maintenance plate of the electronic control box 250, and the first side plate 211 may be disassembled when maintenance or repair is required, and then the electronic control box cover 251 may be disassembled, so that related operations may be performed on the electrical devices inside the electronic control box 250.

Similarly, the second side plate 212 may also be configured to be detachable, so as to facilitate maintenance of the heat dissipating fan 260 or the heat exchanger 230.

In some embodiments of the present application, to further facilitate maintenance or repair of the electronic control box 250, a portion of the cabinet 100 corresponding to the left side panel of the air conditioning unit 200 is also configured as a detachable structure.

The detachable structure can be a screw connection structure or a buckle connection structure and the like.

As shown in fig. 6 and 7, in some embodiments of the present application, the electric control box 250 is provided with a radiator 252 located on the return air flow path, so that heat generated by the operation of the electric control box 250 can be taken away, and the operation reliability of the electric control box 250 is ensured.

To further facilitate disassembly and maintenance, the refrigerant lines connecting the compressor 220, the four-way valve 2150, the direct-cooled plate 2160, the flash evaporator 240, and the heat exchanger 230 include an inboard line 2140 located within the housing 210 of the air conditioning unit 200, and an outboard line 2190 located outside the housing 210 and within the cabinet 100.

In fig. 3, the line L is marked as a boundary, the lower line is the inboard line 2140, and the upper line is the outboard line 2190.

The external pipeline 2190 is located in the internal space of the energy storage cabinet body 100, and comprises two sections located at two sides of the direct cooling plate 2160, wherein one end of one section of external pipeline is connected with the refrigerant inlet 2162 of the direct cooling plate 2160 through a connector 300, the other section of external pipeline is connected with one port of the internal pipeline 2140 through a three-way stop valve 290, one end of the other section of external pipeline is connected with the refrigerant outlet 2163 of the direct cooling plate 2160 through another connector 300, and the other section of external pipeline is connected with the other port of the internal pipeline 2140 through another three-way stop valve 290.

The refrigerant circulation circuit is divided into an inner pipeline 2140 and an outer pipeline 2190, wherein the inner pipeline 2140 is integrated in the shell 210 of the air conditioning unit 200, and can be assembled and disassembled together with the shell of the air conditioning unit 200, and the outer pipeline 2190 can be independently assembled and disassembled, so that the assembly, disassembly and maintenance of each component are convenient.

In some embodiments of the present application, the three-way stop valve 290 is disposed on the front side plate of the housing 210, that is, integrated with the housing 210, and can be assembled and disassembled together with the housing 210, and the three-way stop valve 290 adopts two-stage vehicle-scale sealing, so as to improve the tightness.

For the direct cooling plate 2160, referring to fig. 12 and 13, in some embodiments of the present application, which includes an upper cover 2164 and a bottom plate 2165, the upper cover 2164 and the bottom plate 2165 are paired to enclose the refrigerant flow channel 2161, and the header 300 is formed with an inlet passage communicating with the refrigerant inlet 2162 of the refrigerant flow channel 2161 and an outlet passage communicating with the refrigerant outlet 2163 of the refrigerant flow channel 2161.

In some embodiments of the present application, the connector 300 is disposed on the upper cover 2164, and the upper cover 2164 is correspondingly provided with a through portion, so that the inlet channel of the connector 300 is communicated with the refrigerant inlet 2162 of the refrigerant flow channel 2161, and the outlet channel of the connector 300 is communicated with the refrigerant outlet 2163 of the refrigerant flow channel 2161.

The upper cover 2164 and the base are connected into a whole in a welding or bolt and sealing ring mode, so that each flow path is guaranteed to be free from interference and good in sealing, the connector 300 can be fixed on the upper cover 2164 in a welding or bolt and sealing ring mode, good sealing is guaranteed, and the inlet and the outlet are not interfered with each other.

In some embodiments of the application, an energy storage cabinet air conditioning unit is of a horizontal type structure.

The air conditioning unit 200 has an outer contour in a prolate square shape, and comprises a shell 210, a compressor 220 positioned in the shell 210, a heat exchanger 230, a flash evaporator 240, a four-way valve 2150, an electric control box 250 and a heat radiation fan 260, and also comprises a direct cooling plate 2160, wherein the compressor 220, the heat exchanger 230, the flash evaporator 240, the electric control box 250 and the heat radiation fan 260 are all arranged on a bottom plate of the shell 210.

The front side plate of the shell 210 is provided with an air return opening 213, the rear side plate is provided with an air outlet 214, and front air return and rear air outlet are realized, and the air return opening 213 and the air outlet 214 extend along the left and right directions of the shell. The housing 210 and its internal components (including at least the compressor 220, the heat exchanger 230, the flash evaporator 240, the four-way valve 2150, the electronic control box 250, the heat dissipation fan 260, and its connecting lines) are placed in the air conditioning bin 110 in a horizontal posture.

The air conditioning bin 110 is communicated with the corresponding positions of the air return opening 213 and the air outlet 214, the cabinet body 100 is provided with a through part at the corresponding position of the air conditioning bin 110 so as to be communicated with the corresponding positions of the air return opening 213 and the air outlet 214, the air conditioning unit 200 can return air and outlet air, and the through part is provided with a waterproof shutter and an insect-proof net.

The heat exchanger 230 and the heat dissipation fan 260 are located at the air outlet 214, the heat exchanger 230 also extends along the left-right direction of the housing, and the heat dissipation fan 260 is located between the heat exchanger 230 and the air outlet 214, so as to discharge the heat of the heat exchanger 230 through the air outlet 214 during refrigeration.

The direct cooling plate 2160 is located outside the housing 210, and is disposed in the energy storage bin 120, at least for heat exchange with the energy storage battery 2, the direct cooling plate 2160 is internally formed with a refrigerant flow channel 2161, the refrigerant flow channel 2161 has a refrigerant inlet 2162 and a refrigerant outlet 2163, and the refrigerant in the refrigerant circulation loop flows through the direct cooling plate 2160 for heat exchange with the energy storage battery 2.

The compressor 220, the four-way valve 2150, the direct cooling plate 2160, the flash evaporator 240 and the heat exchanger 230 are sequentially connected through refrigerant lines to form a refrigerant circulation loop.

The flash evaporator 240 has a gas-liquid two-phase refrigerant inlet 241, a liquid refrigerant outlet 242 and a vapor refrigerant outlet 243, one end of a refrigerant pipe A section 2170 positioned between the direct cooling plate 2160 and the flash evaporator 240 is connected with a refrigerant outlet 2163 of the direct cooling plate 2160, the other end is connected with the gas-liquid two-phase refrigerant inlet 241 of the flash evaporator 240, a first throttle valve 270 is arranged on the refrigerant pipe A section 2170, one end of a refrigerant pipe B section 2180 positioned between the flash evaporator 240 and the heat exchanger 230 is connected with the liquid refrigerant outlet 242 of the flash evaporator 240, the other end is connected with the liquid refrigerant inlet of the heat exchanger 230, a second throttle valve 280 is arranged on the refrigerant pipe B section 2180, and the vapor refrigerant outlet 243 of the flash evaporator 240 is connected with a gas-supplementing port of the compressor 220.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides an energy storage cabinet air conditioning unit which characterized in that, energy storage cabinet air conditioning unit is horizontal structure, includes:

The shell is provided with an air return opening on a front side plate and an air outlet on a rear side plate, and the air return opening and the air outlet extend along the left-right direction of the shell;

The air conditioner comprises a shell, a compressor, a heat exchanger, a flash evaporator, a four-way valve, an electric control box and a heat dissipation fan, wherein the compressor, the heat exchanger, the flash evaporator, the electric control box and the heat dissipation fan are arranged on a bottom plate of the shell;

The direct cooling plate is arranged outside the shell and is at least used for carrying out heat exchange with an energy storage battery in the energy storage cabinet, and a refrigerant flow passage is formed inside the direct cooling plate;

the compressor, the four-way valve, the direct cooling plate, the flash evaporator and the heat exchanger are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop;

The flash evaporator is provided with a gas-liquid two-phase refrigerant inlet, a liquid refrigerant outlet and a vapor refrigerant outlet, one end of a refrigerant pipeline A section positioned between the direct cooling plate and the flash evaporator is connected with the refrigerant flow passage outlet of the direct cooling plate, the other end of the refrigerant pipeline A section is connected with the gas-liquid two-phase refrigerant inlet of the flash evaporator, a first throttle valve is arranged on the refrigerant pipeline A section, one end of a refrigerant pipeline B section positioned between the flash evaporator and the heat exchanger is connected with the liquid refrigerant outlet of the flash evaporator, the other end of the refrigerant pipeline B section is connected with the liquid refrigerant inlet of the heat exchanger, a second throttle valve is arranged on the refrigerant pipeline B section, and the vapor refrigerant outlet of the flash evaporator is connected with a gas supplementing port of the compressor.

2. The energy storage cabinet air conditioning unit of claim 1, wherein,

The flash evaporator is vertically arranged on the bottom plate of the shell, the gas-liquid two-phase refrigerant inlet and the liquid refrigerant outlet are positioned at the bottom of the flash evaporator, and the steam refrigerant outlet is positioned at the top of the flash evaporator.

3. The energy storage cabinet air conditioning unit of claim 1, wherein,

The flash evaporator is positioned on the side where the compressor is positioned, a clearance part is arranged between the electric control box and the compressor, and the clearance part is opposite to the heat exchanger.

4. The energy storage cabinet air conditioning unit of claim 1, wherein,

The cooling fans are arranged at intervals along the left-right direction of the shell, the two cooling fans are arranged on the same fan support assembly, each fan support comprises a main mounting plate extending along the left-right direction of the shell and a fan support arranged at the rear side of the main mounting plate and extending along the left-right direction of the shell, an air suction end of each cooling fan is fixedly connected to the main mounting plate, an air outlet end of each cooling fan is fixedly connected to the corresponding fan support, and a through part corresponding to the air suction ends of the two cooling fans is arranged on the main mounting plate.

5. The energy storage cabinet air conditioning unit of claim 4 wherein,

The left end and the right end of the fan support are respectively provided with an air outlet avoidance hole, and the positions between two adjacent heat dissipation fans are respectively provided with an air outlet avoidance hole.

6. The energy storage cabinet air conditioning unit of claim 4 wherein,

The electric control box is attached to the left side plate of the shell, the left side plate of the shell consists of a first detachable side plate and a second detachable side plate, the first side plate is opposite to an electric control box cover of the electric control box, the electric control box cover is detachable, and the second side plate is opposite to an area where the heat exchanger and the heat dissipation fan are located.

7. The energy storage cabinet air conditioning unit of claim 6, wherein,

And the electric control box is provided with a radiator positioned on the return air flow path.

8. The energy storage cabinet air conditioning unit of claim 1, wherein,

The front side plate of the shell is provided with a drawing handle positioned at the outer sides of the left end and the right end of the return air inlet.

9. The utility model provides an energy storage cabinet air conditioning unit which characterized in that, energy storage cabinet air conditioning unit is horizontal structure, includes:

The shell is provided with an air return opening on a front side plate and an air outlet on a rear side plate, and the air return opening and the air outlet extend along the left-right direction of the shell;

The compressor, the heat exchanger, the flash evaporator, the electric control box and the heat dissipation fan are all arranged on a bottom plate of the shell; the heat exchanger and the heat dissipation fan are positioned at the air outlet, the heat exchanger also extends along the left-right direction of the shell, and the heat dissipation fan is positioned between the heat exchanger and the air outlet;

The direct cooling plate is arranged outside the shell and is at least used for carrying out heat exchange with an energy storage battery in the energy storage cabinet, and a refrigerant flow passage is formed inside the direct cooling plate;

the compressor, the four-way valve, the direct cooling plate, the flash evaporator and the heat exchanger are sequentially connected through a refrigerant pipeline to form a refrigerant circulation loop;

The flash evaporator is provided with a gas-liquid two-phase refrigerant inlet, a liquid refrigerant outlet and a vapor refrigerant outlet, one end of a refrigerant pipeline A section positioned between the direct cooling plate and the flash evaporator is connected with the refrigerant flow passage outlet of the direct cooling plate, the other end of the refrigerant pipeline A section is connected with the gas-liquid two-phase refrigerant inlet of the flash evaporator, a first throttle valve is arranged on the refrigerant pipeline A section, one end of a refrigerant pipeline B section positioned between the flash evaporator and the heat exchanger is connected with the liquid refrigerant outlet of the flash evaporator, the other end of the refrigerant pipeline B section is connected with the liquid refrigerant inlet of the heat exchanger, a second throttle valve is arranged on the refrigerant pipeline B section, and the vapor refrigerant outlet of the flash evaporator is connected with a gas supplementing port of the compressor.

10. An energy storage cabinet, comprising:

The cabinet body, the inner space of the cabinet body includes air conditioning storehouse and energy storage storehouse, the said energy storage storehouse is used for holding the energy storage battery at least, there are through parts in the position corresponding to said air conditioning storehouse on the said cabinet body;

An air conditioning unit which is the energy storage cabinet air conditioning unit according to any one of claims 1 to 9, wherein the shell is arranged in the air conditioning bin, and the direct cooling plate is arranged in the energy storage bin.