Energy storage air conditioner

Abstract

The utility model provides an energy storage air conditioner, which comprises a plate heat exchanger, a first heat exchanger and a second heat exchanger, a liquid cooling channel is arranged in the liquid cooling part; a first liquid pump; a refrigerant in the first refrigerant channel exchanges heat with liquid in the first liquid channel, so that the energy storage equipment is cooled or heated by the liquid cooling part; the liquid supplementing device comprises a liquid box, a liquid supplementing device and a liquid supplementing device, the liquid inlet end of the second liquid pump is connected with the liquid outlet, and the liquid return port and the liquid outlet end of the second liquid pump are connected between the liquid cooling channel and the first liquid pump; the power supply module is used for converting alternating current into direct current; the energy storage air conditioner comprises a liquid supplementing contactor connected with a power supply module so that the power supply module can be powered on or powered off through power-on and power-off of the liquid supplementing contactor; the power module is connected with the second liquid pump to enable the second liquid pump to be powered on or powered off; and under the driving of the second liquid pump, the liquid in the liquid box enters the liquid cooling loop so as to supplement the liquid to the liquid cooling loop. Automatic liquid supplementing and stopping of liquid supplementing can be achieved, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an energy storage air conditioner. Background Art

[0002] With the continuous growth of global energy demand and the rapid development of renewable energy, the energy storage industry is gradually becoming an important part of the energy field. As a key technology for energy conversion and storage, energy storage technology can solve the problems of volatility and intermittency of renewable energy, improve energy utilization efficiency, improve energy supply and energy security, reduce dependence on traditional energy, and promote the transformation and upgrading of energy structure.

[0003] Air-cooled air conditioning systems are generally used to cool energy storage devices. However, compared with air-cooled air conditioning systems, liquid-cooled air conditioning systems have lower energy consumption, and liquid-cooled air conditioning systems have gradually become the main temperature control equipment for energy storage devices. The liquid-cooled air conditioning system includes a refrigerant circuit formed by a compressor, a condenser, an evaporator, and a throttling element, so that the evaporator can be cooled. The liquid-cooled air conditioning system can also include a liquid cooling circuit, which exchanges heat with the refrigerant circuit to transfer the cold generated by the evaporator to the energy storage device to cool the energy storage device.

[0004] However, due to the principle of thermal expansion and contraction of liquid in a liquid cooling circuit, the volume of the liquid in the liquid cooling circuit will change with changes in temperature. When the temperature is low, the volume of the liquid in the liquid cooling circuit becomes smaller, and the system will report a liquid shortage fault, reminding maintenance personnel to replenish the liquid. In order to save maintenance costs, an automatic liquid replenishing device is necessary; when the temperature returns to room temperature, the volume of the liquid in the liquid cooling circuit increases, and excessive liquid pressure in the liquid cooling circuit will also cause the air conditioner to fail to work. Therefore, automatic liquid discharge is required. Therefore, the present application proposes an energy storage air conditioner. Summary of the invention

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, according to an embodiment of the present disclosure, an energy storage air conditioner is proposed, comprising:

[0007] compressor;

[0008] A refrigerant heat exchanger connected to the compressor;

[0009] The plate heat exchanger comprises a first refrigerant channel and a first liquid channel; two ends of the first refrigerant channel are respectively connected to the refrigerant heat exchanger and the compressor;

[0010] A liquid cooling section, wherein a liquid cooling channel is provided;

[0011] A first liquid pump, used to provide power for the flow of liquid. Under the drive of the first liquid pump, the liquid flows out of the liquid cooling channel and sequentially passes through the first liquid pump and the first liquid channel to flow back into the liquid cooling channel to form a liquid cooling circuit;

[0012] The refrigerant in the first refrigerant channel exchanges heat with the liquid in the first liquid channel so that the liquid cooling unit cools down or heats up the energy storage device;

[0013] A liquid replenishing device, used to replenish liquid for the liquid cooling circuit and comprising:

[0014] A liquid tank, comprising a liquid outlet and a liquid return port;

[0015] a second liquid pump, whose liquid inlet end is connected to the liquid outlet, and the liquid return port and the liquid outlet end of the second liquid pump are connected between the liquid cooling channel and the first liquid pump;

[0016] Power module, which converts AC power into DC power;

[0017] The energy storage air conditioner comprises:

[0018] A liquid replenishment contactor connected to the power module to enable the power module to be powered on or powered off by powering on and off the liquid replenishment contactor;

[0019] The power module is connected to the second liquid pump to enable the second liquid pump to be powered on or off by direct current;

[0020] Driven by the second liquid pump, the liquid in the liquid tank enters the liquid cooling circuit to replenish the liquid in the liquid cooling circuit.

[0021] A liquid replenishing device is provided, which can replenish liquid in the liquid cooling circuit when liquid is lacking in the liquid cooling circuit. The liquid replenishing device includes a liquid tank, a second liquid pump and a power module, and a liquid replenishing contactor is provided. The power on and off of the second liquid pump can be controlled by the liquid replenishing contactor, so that the second liquid pump can work to replenish liquid in the liquid cooling circuit and the second liquid pump stops working to stop replenishing liquid. The process of replenishing and stopping liquid replenishing can be automatically realized, thereby saving costs and ensuring the normal operation of the energy storage air conditioner.

[0022] According to an embodiment of the present disclosure, it includes:

[0023] A pressure detector, used to detect the pressure of the liquid cooling circuit;

[0024] A circuit board is connected to the pressure detector, and the circuit board is connected to the liquid replenishment contactor to control the power on and off of the liquid replenishment contactor according to the pressure detected by the pressure detector.

[0025] The pressure detection device and the circuit board are provided, and whether the fluid replenishing device replenishes fluid can be controlled according to the pressure of the liquid cooling circuit, thereby improving the accuracy and automation of the fluid replenishment.

[0026] According to an embodiment of the present disclosure, it includes:

[0027] The first one-way valve has a liquid outlet connected between the liquid cooling channel and the first liquid pump, and the liquid inlet of the first one-way valve is connected to the liquid outlet of the second liquid pump, so as to facilitate the liquid to flow to the liquid cooling circuit during liquid replenishment and avoid liquid reflux in the liquid cooling circuit.

[0028] According to an embodiment of the present disclosure, it includes:

[0029] A safety valve, whose liquid inlet is connected between the first liquid pump and the liquid cooling channel, and whose liquid outlet is connected to the liquid return port, so that when the pressure in the liquid cooling circuit is too high, liquid is automatically returned, thereby ensuring that the liquid amount and liquid pressure in the liquid cooling circuit are within a normal range and ensuring the normal operation of the energy storage air conditioner.

[0030] According to an embodiment of the present disclosure, the fluid infusion device comprises:

[0031] The electrical box is connected to the liquid box, and the power module is arranged in the electrical box, so as to protect the power module.

[0032] According to an embodiment of the present disclosure, the fluid infusion device comprises:

[0033] A float switch is arranged in the liquid tank to detect the liquid level in the liquid tank. The float switch is connected to the circuit board and a connection line between the float switch and the circuit board passes through the liquid tank from the bottom of the liquid tank, so as to detect the liquid level in the liquid tank for liquid replenishment.

[0034] According to an embodiment of the present disclosure, a liquid replenishment port is provided on the top of the liquid tank to facilitate liquid replenishment.

[0035] According to an embodiment of the present disclosure, the fluid infusion device comprises:

[0036] The liquid level meter is provided with a liquid level display channel for displaying the liquid level in the liquid tank. Both ends of the liquid level display channel are connected to the space in the liquid tank, so as to facilitate observation of the liquid level in the liquid tank.

[0037] According to an embodiment of the present disclosure, it includes:

[0038] A first shell, wherein the refrigerant heat exchanger, the plate heat exchanger and the liquid replenishment contactor are arranged in the first shell;

[0039] The fluid replenishment device comprises:

[0040] A second housing, wherein the liquid tank and the second liquid pump are arranged in the second housing;

[0041] The second shell is provided with a liquid level display hole for observing the liquid level display channel. The liquid level display hole penetrates the second shell in the thickness direction of the second shell, so as to facilitate observation of the liquid level in the liquid tank.

[0042] According to an embodiment of the present disclosure, an energy storage air conditioner is also provided, comprising:

[0043] compressor;

[0044] A refrigerant heat exchanger connected to the compressor;

[0045] The plate heat exchanger comprises a first refrigerant channel and a first liquid channel; two ends of the first refrigerant channel are respectively connected to the refrigerant heat exchanger and the compressor;

[0046] A liquid cooling section, wherein a liquid cooling channel is provided;

[0047] A first liquid pump, used to provide power for the flow of liquid. Under the drive of the first liquid pump, the liquid flows out of the liquid cooling channel and sequentially passes through the first liquid pump and the first liquid channel to flow back into the liquid cooling channel to form a liquid cooling circuit;

[0048] The refrigerant in the first refrigerant channel exchanges heat with the liquid in the first liquid channel so that the liquid cooling unit cools down or heats up the energy storage device;

[0049] A liquid replenishing device, used to replenish liquid for the liquid cooling circuit and comprising:

[0050] A liquid tank, comprising a liquid outlet and a liquid return port;

[0051] a second liquid pump, whose liquid inlet end is connected to the liquid outlet, and the liquid return port and the liquid outlet end of the second liquid pump are connected between the liquid cooling channel and the first liquid pump;

[0052] Power module, which converts AC power into DC power;

[0053] A breathing valve connected to the top of the liquid tank to balance the air pressure in the liquid tank with the atmospheric pressure;

[0054] The energy storage air conditioner comprises:

[0055] A liquid replenishment contactor connected to the power module to enable the power module to be powered on or powered off by powering on and off the liquid replenishment contactor;

[0056] The power module is connected to the second liquid pump to enable direct current to pass through or cut off the power to the second liquid pump.

[0057] A breathing valve is provided to ensure that when the second liquid pump is working, air can enter the liquid tank when a certain pressure is reached, and the liquid tank will not be sucked flat. When the liquid cooling circuit discharges liquid to the liquid tank, the air in the liquid tank can be discharged when a certain pressure is reached in the liquid tank. Or, after the liquid tank is filled with liquid and a certain pressure is reached, the liquid can be discharged along the breathing valve to ensure the drainage of the liquid cooling circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0059] Figure 1 It is a flow diagram of refrigerant and liquid for heating an energy storage device by an energy storage air conditioner according to an embodiment of the present application;

[0060] Figure 2 It is a refrigerant and liquid flow diagram of the energy storage air conditioner cooling the energy storage device according to the embodiment of the present application;

[0061] Figure 3 It is a partial structural diagram of an energy storage air conditioner according to an embodiment of the present application;

[0062] Figure 4 It is a partial structural diagram of the energy storage air conditioner from another perspective according to the implementation scheme of the present application;

[0063] Figure 5 It is a partial structural diagram of the energy storage air conditioner from another perspective according to the implementation scheme of the present application;

[0064] Figure 6 It is a partial structural diagram of the energy storage air conditioner from another perspective according to the implementation scheme of the present application;

[0065] Figure 7 is a schematic diagram of an energy storage air conditioner according to an embodiment of the present application;

[0066] Figure 8 is a schematic diagram of a fluid infusion device according to an embodiment of the present application;

[0067] Fig. 9 It is a partial structural connection diagram of the energy storage air conditioner according to the implementation mode of the present application;

[0068] Fig.10 is a partial structural diagram of a fluid infusion device according to an embodiment of the present application;

[0069] Fig.11 is an exploded view of a partial structure of a fluid infusion device according to an embodiment of the present application;

[0070] Fig.12 is a structural diagram of an electrical box cover according to an embodiment of the present application;

[0071] Fig.13 is a structural diagram of a fluid replenishment device according to an embodiment of the present application;

[0072] Fig.14 is a partial structural diagram of the fluid replenishment device from another perspective according to an embodiment of the present application;

[0073] Fig.15 It is a schematic diagram of the connection between the liquid cooling unit and the fire sprinkler device according to the embodiment of the present application.

[0074] In the above figures:

[0075] First housing 1; first installation space 11; first cavity 111; fan cavity 1111; compressor cavity 1112; second cavity 112; first air inlet 121; first air outlet 122;

[0076] Compressor 21; refrigerant heat exchanger 22; plate heat exchanger 23; first refrigerant channel 231; first liquid channel 232; throttling device 24; four-way valve 25; first fan 26;

[0077] First partition 31; second partition 32; liquid cooling unit 33; first liquid pump 34; liquid replenishment contactor 35; pressure detector 36; circuit board 37; first check valve 38; safety valve 39; fire sprinkler 40;

[0078] Fluid replenishment device 5;

[0079] Liquid box 51; liquid outlet 511; liquid return port 512;

[0080] A second liquid pump 52; a power module 53;

[0081] Electrical box 541; electrical box body 5411; electrical box placement space 54111; electrical box cover 5412; electrical box cover end plate 54121; top side plate 54122; upper folding edge 541221; sealing member 5413;

[0082] Float switch 542; liquid replenishing port 543; liquid tank cover 544; liquid level meter 545; liquid tank return pipe 546; liquid pump liquid inlet pipe 547; liquid pump liquid outlet pipe 548; breathing valve 549;

[0083] Second housing 55; second accommodating space 551; second housing side plate 552; second housing top plate 553; liquid level display hole 554;

[0084] First base 56; base support feet 561. DETAILED DESCRIPTION

[0085] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0086] The present application proposes an energy storage air conditioner, which can cool down and heat up energy storage equipment. The energy storage air conditioner is described below with reference to the accompanying drawings.

[0087] In this application, reference is made to Figure 1-Figure 2 The energy storage air conditioner may include a compressor 21. The compressor may compress the refrigerant gas in a low-temperature and low-pressure state and discharge the refrigerant gas in a high-temperature and high-pressure state.

[0088] In this application, reference is made to Figure 1-Figure 2 The energy storage air conditioner may include a refrigerant heat exchanger 22. The refrigerant heat exchanger 22 is used to exchange heat with air.

[0089] In this application, reference is made to Figure 1-Figure 2 , the refrigerant heat exchanger 22 can be connected to the compressor 21.

[0090] In this application, reference is made to Figure 1-Figure 2 , the energy storage air conditioner may include a plate heat exchanger 23. The plate heat exchanger is used for heat exchange.

[0091] In this application, reference is made to Figure 1-Figure 2 The plate heat exchanger may include a first refrigerant channel 231. The first refrigerant channel may allow refrigerant to flow through.

[0092] In this application, reference is made to Figure 1-Figure 2 , the plate heat exchanger may include a first liquid channel 232. The first liquid channel 232 may allow liquid to flow through.

[0093] In the present application, the refrigerant in the first refrigerant channel can exchange heat with the liquid in the first liquid channel.

[0094] In the present application, one end of the first refrigerant channel is connected to the refrigerant heat exchanger, and the other end of the first refrigerant channel is connected to the compressor.

[0095] In this application, reference is made to Figure 1-Figure 2 The energy storage air conditioner may include a throttling device 24. The throttling device is used for throttling.

[0096] In the present application, since the plate heat exchanger includes the first refrigerant channel, one of the plate heat exchanger and the refrigerant heat exchanger functions as an evaporator, and the other functions as a condenser.

[0097] In this application, reference is made to Figure 1-Figure 2 , the energy storage air conditioner may include a four-way valve 25 .

[0098] The refrigerant heat exchanger can be connected to the compressor via a four-way valve 25 .

[0099] One end of the first refrigerant channel can be connected to the refrigerant heat exchanger through a throttling device, and the other end of the first refrigerant channel can be connected to the compressor through a four-way valve.

[0100] The refrigerant flows out of the compressor, flows into the condenser through the four-way valve, and then flows back to the compressor through the throttling device, the evaporator, and the four-way valve in sequence to form a refrigerant circuit.

[0101] In the present application, when the plate heat exchanger functions as a condenser, the refrigerant flows out of the compressor through the four-way valve into the first refrigerant channel and flows back to the compressor through the throttling device, the refrigerant heat exchanger, and the four-way valve in sequence to form a refrigerant circuit.

[0102] In the present application, when the plate heat exchanger functions as an evaporator, the refrigerant flows out of the compressor, flows into the refrigerant heat exchanger through the four-way valve, and flows back to the compressor through the throttling device, the first refrigerant channel, and the four-way valve in sequence to form a refrigerant circuit.

[0103] In this application, reference is made to Figure 3-Figure 6 The energy storage air conditioner may include a first shell 1.

[0104] In the present application, the bottom of the first shell to the top of the first shell may be the height direction of the first shell.

[0105] The first housing 1 may have a width direction. The width direction of the first housing 1 may be from one side end of the first housing 1 to the other side end of the first housing 1 .

[0106] The first housing 1 may have a front side and a rear side that are oppositely disposed. The front side of the first housing 1 to the rear side of the first housing may be a front-rear direction of the first housing.

[0107] The height direction, the width direction, and the front-rear direction of the first housing are perpendicular to each other.

[0108] In the present application, the first housing may be arranged vertically, and a height direction of the first housing is parallel to a vertical direction.

[0109] In this application, reference is made to Figure 3-Figure 6 , the compressor 21 can be arranged in the first shell.

[0110] In this application, reference is made to Figure 3-Figure 6 The refrigerant heat exchanger 22 can be disposed in the first shell 1 .

[0111] In this application, reference is made to Figure 3-Figure 6 The plate heat exchanger 23 can be arranged in the first shell 1.

[0112] In this application, reference is made to Figure 3-Figure 6The throttling device 24 can be arranged in the first shell 1.

[0113] In this application, reference is made to Figure 3-Figure 6 , the four-way valve 25 can be arranged in the first shell 1.

[0114] In this application, reference is made to Figure 3-Figure 6 A first installation space 11 is formed in the first shell.

[0115] In this application, reference is made to Figure 3-Figure 6 The energy storage air conditioner may include a first partition 31. The first partition 31 may be disposed in the first housing. The first partition 31 may separate the first installation space into a first cavity 111 and a second cavity 112 disposed up and down.

[0116] The first cavity may be disposed above the second cavity.

[0117] In the present application, the plate heat exchanger may be disposed in the second chamber.

[0118] In the present application, the refrigerant heat exchanger may be disposed in the first chamber.

[0119] In the present application, the compressor may be disposed in the first chamber.

[0120] In this application, reference is made to Figure 3-Figure 6 The energy storage air conditioner may include a second partition plate 32. The second partition plate 32 may be disposed in the first cavity to separate the first cavity into a fan cavity 1111 and a compressor cavity 1112 disposed along the width direction of the first housing.

[0121] In the present application, the compressor is disposed in the press chamber 1112 .

[0122] In the present application, the refrigerant heat exchanger is arranged in the fan cavity.

[0123] In this application, reference is made to Figure 3-Figure 6 The first housing is provided with a first air inlet 121. The first air inlet may be connected to the fan cavity. The first air inlet may be an inlet for air to enter the fan cavity.

[0124] In this application, reference is made to Figure 3-Figure 6 The first housing is provided with a first air outlet 122. The first air outlet may be connected to the fan cavity. The first air outlet may be an outlet for air to flow out of the first air outlet.

[0125] In this application, reference is made to Figure 3-Figure 6 The energy storage air conditioner may include a first fan 26. The first fan may be disposed in the fan cavity 1111. The first fan may be disposed on a side of the refrigerant heat exchanger away from the first air inlet.

[0126] The first fan 26 can provide power for the flow of air. The first fan drives air to enter the fan cavity through the first air inlet to exchange heat with the refrigerant heat exchanger, and the air after heat exchange with the refrigerant heat exchanger flows out of the fan cavity through the first air outlet.

[0127] In the present application, there may be two first fans, and the two first fans may be arranged sequentially in the height direction of the first housing.

[0128] In the present application, there may be two first air outlets, and the two first air outlets may be arranged sequentially in the height direction of the first housing.

[0129] In this application, reference is made to Figure 1-Figure 2 The energy storage air conditioner may include a liquid cooling unit 33. A liquid cooling channel may be provided in the liquid cooling unit. The liquid cooling unit cools down or heats up the energy storage device.

[0130] In this application, reference is made to Figure 1-Figure 2 The energy storage air conditioner may include a first liquid pump 34. The first liquid pump 34 can provide power for the flow of liquid. Driven by the first liquid pump, the liquid flows out of the liquid cooling channel and flows back into the liquid cooling channel through the first liquid pump and the first liquid channel in sequence to form a liquid cooling circuit.

[0131] The refrigerant in the first refrigerant channel exchanges heat with the liquid in the first liquid channel so that the liquid cooling unit cools down or heats up the energy storage device.

[0132] In this application, reference is made to Figure 4 The energy storage air conditioner may include a liquid replenishing device 5. The liquid replenishing device 5 can replenish liquid for the liquid cooling circuit.

[0133] In this application, reference is made to Figure 7 The liquid replenishing device may include a liquid tank 51. The liquid tank 51 is used to store liquid.

[0134] In this application, reference is made to Figure 8 The liquid box may include a liquid outlet 511. The liquid outlet 511 is used for the liquid in the liquid box to flow out of the liquid box.

[0135] In this application, reference is made to Figure 8 The liquid tank 51 may include a liquid return port 512. The liquid return port 512 is used for the liquid outside the liquid tank to return to the liquid tank.

[0136] In this application, reference is made to Figure 8 , the fluid replenishment device may include a second fluid pump 52. The second fluid pump 52 can provide power for the flow of the fluid replenishment liquid.

[0137] In the present application, the liquid inlet end of the second liquid pump may be connected to the liquid outlet.

[0138] In the present application, the liquid outlet of the second liquid pump may be connected between the liquid cooling channel and the first liquid pump.

[0139] In the present application, the liquid return port may be connected between the liquid cooling channel and the first liquid pump.

[0140] In the present application, the liquid return port is located on a side of the liquid outlet end of the second liquid pump close to the first liquid pump.

[0141] In the present application, the fluid replenishing device may include a power module 53. The power module is used to convert alternating current into direct current. The power module may be connected to the second liquid pump to supply direct current to the second liquid pump.

[0142] In the present application, the power module may be a 24V power module, which can convert alternating current into 24V direct current and supply the direct current to the second liquid pump.

[0143] In the present application, the power module can convert 220V AC power into 24V DC power and supply the second liquid pump.

[0144] In this application, reference is made to Figure 6 The energy storage air conditioner may include a liquid replenishing contactor 35. The liquid replenishing contactor controls whether the liquid replenishing device replenishes liquid to the liquid cooling circuit by powering on and off.

[0145] In the present application, the liquid replenishment contactor may be disposed in the first housing. The liquid replenishment contactor may be disposed in the press chamber.

[0146] In the present application, the liquid replenishment contactor can be connected to the power module. The liquid replenishment contactor can make the power module pass AC power or cut off power by powering on and off the liquid replenishment contactor.

[0147] In the present application, the power module is connected to the second liquid pump to enable direct current to be supplied to or to cut off power to the second liquid pump.

[0148] In the present application, after direct current is supplied to the second liquid pump, the liquid in the liquid tank enters the liquid cooling circuit under the drive of the second liquid pump to replenish the liquid in the liquid cooling circuit.

[0149] After the second liquid pump is powered off, the liquid replenishing device stops replenishing liquid to the liquid cooling circuit.

[0150] A liquid replenishing device is provided, which can replenish liquid in the liquid cooling circuit when liquid is lacking in the liquid cooling circuit. The liquid replenishing device includes a liquid tank, a second liquid pump and a power module, and a liquid replenishing contactor is provided. The power on and off of the second liquid pump can be controlled by the liquid replenishing contactor, so that the second liquid pump can work to replenish liquid in the liquid cooling circuit and the second liquid pump stops working to stop replenishing liquid. The process of replenishing and stopping liquid replenishing can be automatically realized, thereby saving costs and ensuring the normal operation of the energy storage air conditioner.

[0151] In this application, reference is made to Figure 7 and Figure 8 The energy storage air conditioner may include a pressure detector 36. The pressure detector may be used to detect the pressure of the liquid cooling circuit.

[0152] In this application, reference is made to Fig. 9 The energy storage air conditioner may include a circuit board 37. The circuit board may be connected to a pressure detector to obtain pressure data detected by the pressure detector.

[0153] In the present application, the circuit board can be connected to the liquid replenishment contactor. The circuit board can control the power on and off of the liquid replenishment contactor according to the pressure detected by the pressure detector.

[0154] The pressure detection device and the circuit board are provided, and whether the fluid replenishing device replenishes fluid can be controlled according to the pressure of the liquid cooling circuit, thereby improving the accuracy and automation of the fluid replenishment.

[0155] In the present application, when the liquid pressure in the liquid cooling circuit is less than the first set value, the automatic liquid replenishment mode is triggered, the liquid replenishment contactor is energized, and the second liquid pump starts working. When the liquid pressure in the liquid cooling circuit is greater than the second set value, the liquid replenishment contactor is de-energized and the second liquid pump stops working.

[0156] In the present application, the liquid pressure of the liquid cooling circuit may be the liquid return pressure or the liquid discharge pressure of the liquid cooling circuit.

[0157] In this application, reference is made to Figure 7-Figure 8 The energy storage air conditioner may include a first one-way valve 38. The liquid outlet of the first one-way valve is connected between the liquid cooling channel and the first liquid pump. The liquid inlet of the first one-way valve is connected to the liquid outlet of the second liquid pump. The first one-way valve is provided to facilitate the liquid to flow to the liquid cooling circuit during liquid replenishment and to prevent liquid reflux in the liquid cooling circuit.

[0158] In this application, reference is made to Figure 7-Figure 8 The energy storage air conditioner may include a safety valve 39. The liquid inlet of the safety valve may be connected between the first liquid pump and the liquid cooling channel, and the liquid outlet of the safety valve may be connected to the liquid return port. The safety valve is provided so that when the pressure in the liquid cooling circuit is too high, liquid return is automatically performed to ensure that the liquid amount and liquid pressure in the liquid cooling circuit are within a normal range, thereby ensuring the normal operation of the energy storage air conditioner.

[0159] In this application, reference is made to Figure 10-12 The liquid replenishing device may include an electrical box 541. The electrical box may be connected to the liquid tank 51.

[0160] In this application, reference is made to Figure 10-12 The power module 53 can be arranged in the electrical box to protect the power module.

[0161] In this application, reference is made to Figure 10-12The electrical box may include an electrical box body 5411. An electrical box placement space 54111 with an open end is formed in the electrical box body 5411. The power module may be disposed in the electrical box placement space.

[0162] In the present application, the opening end of the electrical appliance box placement space is arranged on a side of the electrical appliance box body away from the liquid box.

[0163] In this application, reference is made to Figure 10-12 The electrical box may include an electrical box cover 5412. The electrical box cover is connected to the electrical box body. The electrical box cover can block the open end of the electrical box placement space.

[0164] In this application, reference is made to Figure 10-12 A sealing member 5413 is provided between the electrical box body and the electrical box cover. The sealing member can be provided at the opening of the electrical box placement space.

[0165] In this application, reference is made to Figure 10-12 The electrical box cover 5412 may include an electrical box cover end plate 54121. The electrical box cover may include an electrical box cover side plate. The electrical box cover side plate may include a top side plate 54122 located at the top thereof. An end of the top side plate away from the electrical box cover may be provided with an upper folding edge 541221 bent downward, which can improve the waterproof effect between the electrical box body and the electrical box cover.

[0166] In the present application, the outer side of the liquid box may be provided with an electrical box mounting hole. The liquid replenishing device may include a first connecting member, which may be inserted into the electrical box mounting hole and connected to the liquid box to fix the electrical box on the liquid box.

[0167] In this application, reference is made to Fig.13 The liquid replenishing device may include a second housing 55. The liquid tank may be disposed in the second housing. The second liquid pump may be disposed in the second housing.

[0168] In this application, reference is made to Fig.13 The second housing 55 may be provided with a second accommodation space 551. The liquid tank may be provided in the second accommodation space. The second liquid pump 52 may be provided in the second accommodation space.

[0169] In the present application, the bottom of the second shell to the top of the second shell may be the height direction of the second shell.

[0170] In the present application, the second housing may have a width direction. The width direction of the second housing may be from one side end of the second housing to the other side end of the second housing.

[0171] In the present application, the second housing may have a front side and a rear side that are arranged opposite to each other. The direction from the front side of the second housing to the rear side of the second housing may be the front-rear direction of the second housing.

[0172] In the present application, the height direction, the width direction, and the front-rear direction of the second housing are perpendicular to each other.

[0173] In the present application, the height direction of the second housing can be vertically arranged. The height direction of the second housing is the same as the height direction of the first housing.

[0174] In the present application, the width direction of the second housing is the same as the width direction of the first housing.

[0175] In the present application, the front-rear direction of the second housing is the same as the front-rear direction of the first housing.

[0176] In the present application, the liquid tank and the second liquid pump may be arranged sequentially in the width direction of the second housing.

[0177] In the present application, the electrical box may be disposed on a side of the liquid tank close to the second liquid pump.

[0178] In this application, reference is made to Figure 8 The liquid replenishing device may include a float switch 542. The float switch 542 may be disposed in the liquid tank to detect the liquid level in the liquid tank, and can detect the liquid level in the liquid tank for liquid replenishment.

[0179] In the present application, the float switch 542 can be connected to the circuit board. The connection line between the float switch and the circuit board can pass through the bottom of the liquid box and out of the liquid box.

[0180] In this application, when the float switch detects that the liquid level in the liquid tank is low, the float switch is activated and a signal is fed back to the circuit board. The circuit board can control automatic liquid replenishment. Alternatively, the circuit board feeds back to the maintenance personnel for manual liquid replenishment.

[0181] In the present application, the operating liquid level of the float switch can be higher than the liquid outlet of the liquid tank to prevent the water pump from running dry.

[0182] In this application, reference is made to Figure 8 The top of the liquid tank may be provided with a liquid replenishing port 543. Liquid may be replenished into the liquid tank through the liquid replenishing port 543 to replenish the liquid tank.

[0183] In this application, reference is made to Figure 8 The refilling device may include a liquid tank cover 544. The liquid tank cover may be connected to the liquid tank to open or close the refilling port. The liquid tank cover may be unscrewed to manually refill the liquid.

[0184] In the present application, the liquid tank cover 544 may be connected to the liquid tank via a hinge.

[0185] In this application, reference is made to Fig.14The liquid replenishing device may include a liquid level meter 545. The liquid level meter 545 may include a liquid level display channel for displaying the liquid level in the liquid tank. Both ends of the liquid level display channel may be connected to the space in the liquid tank, so as to facilitate observation of the liquid level in the liquid tank.

[0186] In the present application, the liquid level meter can be arranged on the side where the liquid tank is connected to the electrical box. The liquid level meter can be located on the front side of the electrical box.

[0187] In the present application, the liquid level display channel can be arranged vertically.

[0188] In the present application, the liquid level meter may include a connecting channel, and the top and bottom ends of the liquid level display channel are respectively connected to the space in the liquid tank through the connecting channel.

[0189] In the present application, the liquid return port can be arranged on a side of the liquid box connected to the electrical box. In the vertical direction, the liquid return port can be arranged above the electrical box.

[0190] In this application, reference is made to Fig.14 The second shell is provided with a liquid level display hole 554 for observing the liquid level display channel, which is convenient for observing the liquid level in the liquid tank. The liquid level display hole penetrates the second shell in the thickness direction of the second shell.

[0191] In this application, reference is made to Fig.13 The second housing may include a second housing side plate 552 disposed on the side of the second housing. The liquid level display hole may be disposed on the second housing side plate.

[0192] The liquid level display hole can be arranged on the second shell side plate and the plate body arranged opposite to the liquid level meter.

[0193] In this application, reference is made to Fig.14 , the second housing may include a second housing top plate 553 located on the top of the second housing.

[0194] In this application, reference is made to Fig.14 The liquid replenishing device may include a first base 56. The liquid tank is arranged on the first base. The second liquid pump is arranged on the first base.

[0195] In the present application, the second outer housing is disposed outside the liquid tank and the second liquid pump and is connected to the first base.

[0196] In this application, reference is made to Fig.14 , the first base may include a base foot 561.

[0197] In the present application, the energy storage air conditioner can be arranged in a container. The base legs can be fixedly connected to the container. The base legs can be fixed to the container with bolts.

[0198] In the present application, the first shell can be arranged in the container. The first shell can be fixed on the container.

[0199] In the present application, the fluid replenishing device may be located behind the first housing.

[0200] In the present application, the bottom of the liquid box is fixedly connected to the first base. The bottom of the liquid box can be fixedly connected to the first base by screws.

[0201] In the present application, the side of the liquid box can be fixedly connected to the side plate of the second shell. The side of the liquid box can be fixedly connected to the side plate of the second shell by screws.

[0202] In this application, reference is made to Figure 8 and Fig.14 The liquid replenishing device may include a liquid tank return pipe 546. One end of the liquid tank return pipe may be connected to the liquid return port, and the other end of the liquid tank return pipe may be connected to the installation valve outlet.

[0203] In this application, reference is made to Figure 8 and Fig.14 The liquid replenishing device may include a liquid pump inlet pipe 547. One end of the liquid pump inlet pipe may be connected to the liquid outlet of the liquid box, and the other end of the liquid pump inlet pipe may be connected to the liquid inlet end of the second liquid pump.

[0204] In this application, reference is made to Figure 8 and Fig.14 The liquid replenishing device may include a liquid pump outlet pipe 548. One end of the liquid pump outlet pipe may be connected to the liquid outlet end of the second liquid pump, and the other end of the liquid pump outlet pipe may be connected to the liquid inlet end of the first one-way valve.

[0205] In the present application, the second liquid pump is arranged on a side of the liquid tank connected to the electrical box.

[0206] In the present application, the liquid outlet of the liquid box is arranged on a side of the liquid box close to the second liquid pump.

[0207] In the present application, in the vertical direction, the liquid outlet of the liquid box is flush with the liquid inlet end of the second liquid pump, which facilitates the installation of the second liquid pump and ensures that the second liquid pump does not suck empty liquid.

[0208] In the present application, the liquid outlet of the liquid box and the liquid return port of the liquid box are located on the same side of the liquid box.

[0209] In this application, reference is made to Figure 8 and Fig.14The liquid replenishing device may include a breathing valve 549. The breathing valve may be connected to the top of the liquid tank to balance the air pressure in the liquid tank with the atmospheric pressure, to ensure that when the second liquid pump is working, air can enter the liquid tank when a certain pressure is reached, and the liquid tank will not be deflated. When the liquid cooling circuit discharges liquid to the liquid tank, when a certain pressure is reached in the liquid tank, the air in the liquid tank can be discharged, or when the liquid tank is filled with liquid and reaches a certain pressure, the liquid can be discharged along the breathing valve to ensure the liquid cooling circuit is discharged.

[0210] In the present application, a vent is provided on the top of the liquid box, and a breathing valve can be installed in the vent.

[0211] In the present application, the liquid cooling part may be a liquid cooling plate.

[0212] In the present application, there may be several liquid cooling plates, several liquid cooling plates may be arranged vertically, and liquid cooling channels in several liquid cooling plates may be connected in parallel.

[0213] In the present application, a fire sprinkler device 40 may be connected in series to the liquid cooling channel.

[0214] In the present application, there may be several fire sprinkler devices, and the several fire sprinkler devices may be connected in parallel.

[0215] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0216] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0217] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection 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.

[0218] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An energy storage air conditioner, characterized in that: include: compressor; A refrigerant heat exchanger connected to the compressor; A plate heat exchanger comprising a first refrigerant channel and a first liquid channel; Two ends of the first refrigerant channel are respectively connected to the refrigerant heat exchanger and the compressor; A liquid cooling section, wherein a liquid cooling channel is provided; A first liquid pump, used to provide power for the flow of liquid. Under the drive of the first liquid pump, the liquid flows out of the liquid cooling channel and sequentially passes through the first liquid pump and the first liquid channel to flow back into the liquid cooling channel to form a liquid cooling circuit; The refrigerant in the first refrigerant channel exchanges heat with the liquid in the first liquid channel so that the liquid cooling unit cools down or heats up the energy storage device; A liquid replenishing device, used to replenish liquid for the liquid cooling circuit and comprising: A liquid tank, comprising a liquid outlet and a liquid return port; a second liquid pump, whose liquid inlet end is connected to the liquid outlet, and the liquid return port and the liquid outlet end of the second liquid pump are connected between the liquid cooling channel and the first liquid pump; Power module, which converts AC power into DC power; The energy storage air conditioner comprises: A liquid replenishment contactor connected to the power module to enable the power module to be powered on or powered off by powering on and off the liquid replenishment contactor; The power module is connected to the second liquid pump to enable the second liquid pump to be powered on or off by direct current; Driven by the second liquid pump, the liquid in the liquid tank enters the liquid cooling circuit to replenish the liquid in the liquid cooling circuit.

2. The energy storage air conditioner according to claim 1, characterized in that: include: A pressure detector, used to detect the pressure of the liquid cooling circuit; A circuit board is connected to the pressure detector, and the circuit board is connected to the liquid replenishment contactor to control the power on and off of the liquid replenishment contactor according to the pressure detected by the pressure detector.

3. The energy storage air conditioner according to claim 1, characterized in that: include: A first one-way valve has a liquid outlet end connected between the liquid cooling channel and the first liquid pump, and a liquid inlet end of the first one-way valve is connected to a liquid outlet end of the second liquid pump.

4. The energy storage air conditioner according to claim 1, characterized in that: include: A safety valve, whose liquid inlet is connected between the first liquid pump and the liquid cooling channel, and whose liquid outlet is connected to the liquid return port.

5. The energy storage air conditioner according to claim 1, characterized in that: The fluid replenishment device comprises: The electrical box is connected to the liquid box, and the power module is arranged in the electrical box.

6. The energy storage air conditioner according to claim 2, characterized in that: The fluid replenishment device comprises: A float switch is arranged in the liquid tank to detect the liquid level in the liquid tank. The float switch is connected to the circuit board and a connection line between the float switch and the circuit board passes through the liquid tank from the bottom of the liquid tank.

7. The energy storage air conditioner according to claim 6, characterized in that: A liquid replenishing port is arranged on the top of the liquid box.

8. The energy storage air conditioner according to claim 1, characterized in that: The fluid replenishment device comprises: The liquid level meter is provided with a liquid level display channel for displaying the liquid level in the liquid tank, and both ends of the liquid level display channel are communicated with the space in the liquid tank.

9. The energy storage air conditioner according to claim 8, characterized in that: include: A first shell, wherein the refrigerant heat exchanger, the plate heat exchanger and the liquid replenishment contactor are arranged in the first shell; The fluid replenishment device comprises: A second housing, wherein the liquid tank and the second liquid pump are arranged in the second housing; The second shell is provided with a liquid level display hole for observing the liquid level display channel, and the liquid level display hole penetrates the second shell in the thickness direction of the second shell.

10. An energy storage air conditioner, characterized in that: include: compressor; A refrigerant heat exchanger connected to the compressor; A plate heat exchanger comprising a first refrigerant channel and a first liquid channel; Two ends of the first refrigerant channel are respectively connected to the refrigerant heat exchanger and the compressor; A liquid cooling section, wherein a liquid cooling channel is provided; A first liquid pump, used to provide power for the flow of liquid. Under the drive of the first liquid pump, the liquid flows out of the liquid cooling channel and sequentially passes through the first liquid pump and the first liquid channel to flow back into the liquid cooling channel to form a liquid cooling circuit; The refrigerant in the first refrigerant channel exchanges heat with the liquid in the first liquid channel so that the liquid cooling unit cools down or heats up the energy storage device; A liquid replenishing device, used to replenish liquid for the liquid cooling circuit and comprising: A liquid tank, comprising a liquid outlet and a liquid return port; a second liquid pump, whose liquid inlet end is connected to the liquid outlet, and the liquid return port and the liquid outlet end of the second liquid pump are connected between the liquid cooling channel and the first liquid pump; Power module, which converts AC power into DC power; A breathing valve connected to the top of the liquid tank to balance the air pressure in the liquid tank with the atmospheric pressure; The energy storage air conditioner comprises: A liquid replenishment contactor connected to the power module to enable the power module to be powered on or powered off by powering on and off the liquid replenishment contactor; The power module is connected to the second liquid pump to enable direct current to pass through or cut off the power to the second liquid pump.

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