Drainage device and heat pump equipment

Abstract

The embodiment of the present application provides a drainage device and a heat pump device, wherein the drainage device includes a pipeline assembly, a switch assembly and a drive assembly; the pipeline assembly includes a refrigerant connecting pipe, a water connecting pipe and a drainage pipe with a drain outlet; the switch assembly includes a first switch for connecting or cutting off the refrigerant connecting pipe and a second switch for connecting or cutting off the water connecting pipe, one of the first switch and the second switch is an energized closed switch, and the other is a temperature memory switch; the drive assembly includes a first magnet and an opening and closing body equipped with a second magnet, and the first magnet and the second magnet are arranged oppositely at one end with the same polarity; when the first switch connects the refrigerant connecting pipe, the first magnet moves in the direction of the second magnet under the thrust of the refrigerant from the refrigerant connecting pipe, so that the opening and closing body connects the water flow path between the water connecting pipe and the drain outlet. The drainage device of the embodiment of the present application can automatically discharge water in the waterway when the power is cut off at low temperature.

Description

Technical Field

[0001] The present application relates to the technical field of heat pumps, and in particular to a drainage device and a heat pump equipment. Background Art

[0002] In the related technologies, with the improvement of living standards, users have higher and higher requirements for air conditioning performance, and combined supply of natural water and ground water and combined supply of natural fluorine and ground water air conditioning products have emerged. These products need to exchange heat between refrigerant and water, so that the water flow transfers the cold or heat of the refrigerant to the terminals such as floor heating pipes, air conditioner indoor units (natural fluorine and ground water combined supply), fan coils (natural water and ground water combined supply), etc. installed indoors, so as to achieve the purpose of regulating the indoor temperature.

[0003] Since this type of product is equipped with water pipes for water flow, and water generally freezes at 0°C, freezing will cause the water pipes and components involved in the water circulation to be prone to freezing, cracking, freezing deformation and other problems. Therefore, in the related art, in order to solve the problem of product damage by freezing, a manual drain switch is generally set at the lowest point of the water pipe. In cold weather, when there is a power outage, the user manually opens the drain switch to drain the water in the water pipe to avoid the product from being damaged by freezing.

[0004] However, in cold weather, when there is a power outage or the user mistakenly turns off the power, if the user forgets to turn on the drain switch, the water pipes and components involved in the water circulation will still be damaged by freezing water. Summary of the invention

[0005] In view of this, the embodiments of the present application hope to provide a drainage device and a heat pump equipment that facilitate drainage.

[0006] To achieve the above-mentioned purpose, an embodiment of the present application provides a drainage device for a heat pump device, comprising:

[0007] A pipeline assembly, the pipeline assembly comprising a refrigerant connecting pipe, a water connecting pipe and a drain pipe with a drain port;

[0008] A switch assembly, the switch assembly comprising a first switch for selectively connecting or disconnecting the refrigerant connecting pipe and a second switch for selectively connecting or disconnecting the water connecting pipe, one of the first switch and the second switch is an energized closed switch, and the other is a temperature memory switch;

[0009] A driving component, the driving component includes a first magnet and an opening and closing body equipped with a second magnet, the first magnet and the second magnet are arranged opposite to each other at one end with the same polarity; when the first switch connects the refrigerant connecting pipe, the first magnet moves toward the direction of the second magnet under the thrust of the refrigerant from the refrigerant connecting pipe, so that the opening and closing body connects the water flow path between the water connecting pipe and the drain outlet.

[0010] In one embodiment, the drainage device includes a first elastic return member, and the pipeline assembly includes a bypass pipeline connected to the refrigerant connecting pipe;

[0011] When the first switch conducts the refrigerant connecting pipe, the first magnet moves to cause the first elastic reset member to generate elastic deformation;

[0012] When the first switch switches from an open state that conducts the refrigerant connecting pipe to a closed state that blocks the refrigerant connecting pipe, the first magnet is reset under the elastic force of the first elastic reset member, and at least part of the refrigerant in the refrigerant connecting pipe between the drive assembly and the first switch flows back through the bypass pipeline.

[0013] In one embodiment, the bypass pipeline includes a bypass capillary tube, and the bypass capillary tube is connected to a region of the refrigerant connecting pipe located between the driving component and the first switch; or,

[0014] The bypass pipeline includes a bypass connecting pipe and a one-way valve arranged on the bypass connecting pipe. The bypass connecting pipe is connected to the refrigerant connecting pipe in a region between the driving component and the first switch.

[0015] In one embodiment, the drainage device includes a second elastic return member;

[0016] When the first switch is connected to the refrigerant connecting pipe, the switch body moves to cause the second elastic reset member to generate elastic deformation;

[0017] When the first switch is switched from an open state for conducting the refrigerant connecting pipe to a closed state for blocking the refrigerant connecting pipe, the opening and closing body is reset under the elastic force of the second elastic reset member.

[0018] In one embodiment, the first magnet is disposed in the refrigerant connecting pipe, and the refrigerant connecting pipe is provided with a first exhaust hole; and / or,

[0019] The second magnet is disposed in the drain pipe, and the drain pipe is provided with a second exhaust hole; and / or,

[0020] The refrigerant connecting pipe is separated from the drain pipe, a first avoidance opening is provided at a portion of the refrigerant connecting pipe facing the second magnet, and a second avoidance opening is provided at a portion of the drain pipe facing the first magnet.

[0021] In one embodiment, the first magnet is disposed in the refrigerant connecting pipe, a first limiting portion is disposed in the refrigerant connecting pipe, and the first limiting portion is located on a side of the first magnet away from the first switch.

[0022] In one embodiment, the water channel connecting pipe is connected to the drain pipe; the opening and closing body is arranged in the drain pipe;

[0023] The opening and closing body includes a slider, which is arranged on a side of the second magnet away from the first magnet to conduct a water flow path between the water channel connecting pipe and the drain port.

[0024] In one embodiment, the slider has a drainage channel. When the slider opens the water flow path between the water channel connecting pipe and the drainage port, the water channel connecting pipe is connected to the drainage port through the drainage channel.

[0025] In one embodiment, the drainage channel is connected to the water channel connecting pipe, and the slider has a first water outlet connected to the drainage channel;

[0026] When the first switch is in a closed state of cutting off the refrigerant connecting pipe, the first water outlet is staggered with the drain outlet;

[0027] When the slider opens the water flow path between the water channel connecting pipe and the drain port, the first water outlet moves to a position communicating with the drain port.

[0028] In one embodiment, a second limiting portion is provided in the drain pipe, and the second limiting portion is located on a side of the second magnet away from the slider; and / or,

[0029] A third limiting portion is arranged in the drain pipe, and the third limiting portion is located at a side of the sliding block away from the second magnet.

[0030] In one embodiment, the refrigerant connecting pipe is separated from the drain pipe, and the opening and closing body includes a first transmission member and a second transmission member, and the first transmission member is connected to the second magnet;

[0031] The first transmission member is driven by the second magnet to drive the second transmission member to move, so that the second transmission member opens the water flow path between the water channel connecting pipe and the drain outlet.

[0032] In one embodiment, the first transmission member is a rack, the second transmission member includes a gear and an opening and closing member arranged on the gear, the rack is meshed with the gear, and the opening and closing member extends into the water connection pipe and / or the drain pipe;

[0033] The rack is driven by the second magnet to drive the gear to rotate, so that the opening and closing member opens the water flow path between the water channel connecting pipe and the drain outlet.

[0034] In one embodiment, the opening and closing member is a sleeve having a water passage, and when the sleeve conducts the water flow path between the water channel connecting pipe and the drain outlet, the water channel connecting pipe is connected to the drain outlet through the water passage.

[0035] In one embodiment, the axis of the water connection pipe extends along a first direction, the axis of the drain pipe extends along a second direction intersecting the first direction, and a third water outlet communicating with the water passage is provided on the side wall of the sleeve; the sleeve passes through the water connection pipe and is sleeved with the drain pipe, the third water outlet is located in the water connection pipe, and the water passage is communicated with the drain pipe;

[0036] When the first switch is in a closed state of cutting off the refrigerant connecting pipe, the third water outlet is offset from the water flow path in the water channel connecting pipe;

[0037] When the sleeve opens the water flow path between the water channel connecting pipe and the drain port, the third water outlet moves to the water flow path in the water channel connecting pipe.

[0038] In one embodiment, the water channel connecting pipe includes a main water channel pipe and a limiting ring connected to the main water channel pipe, and the sleeve is sealingly inserted into the limiting ring.

[0039] In one embodiment, it is characterized in that the drainage device includes a limiting member cooperating with the first transmission member, and the limiting member is located on a side of the first transmission member away from the second magnet.

[0040] In one embodiment, the drainage device has a manual drainage mode, in which at least one of the first switch and the second switch is maintained in a normally closed state that is manually opened.

[0041] Another embodiment of the present application provides a heat pump device, including a refrigerant pipeline, a water channel and the drainage device described above, wherein the refrigerant connecting pipe is connected to the refrigerant pipeline, and the water channel connecting pipe is connected to the water channel.

[0042] In one embodiment, the heat pump device includes a heat pump host having a host refrigerant pipe and a host water pipe, the refrigerant connecting pipe is connected to the refrigerant pipeline through the host refrigerant pipe, and the water circuit connecting pipe is connected to the water circuit through the host water pipe; or,

[0043] The heat pump device comprises a hydraulic module having a hydraulic refrigerant pipe and a hydraulic water pipe, the refrigerant connecting pipe is connected to the refrigerant pipeline through the hydraulic refrigerant pipe, and the water channel connecting pipe is connected to the water channel through the hydraulic water pipe.

[0044] An embodiment of the present application provides a drainage device and a heat pump device, wherein the drainage device is provided with a pipeline assembly, a switch assembly and a drive assembly, wherein the pipeline assembly includes a refrigerant connecting pipe, a water connecting pipe and a drainage pipe with a drain outlet, wherein the refrigerant connecting pipe is used to connect with the refrigerant pipeline of the heat pump device, and the water connecting pipe is used to connect with the water circuit of the heat pump device. The switch assembly includes a first switch for selectively connecting or shutting off the refrigerant connecting pipe and a second switch for selectively connecting or shutting off the water connecting pipe. One of the first switch and the second switch is an energized closed switch, and the other is a temperature memory switch. That is to say, the energized closed switch can connect one of the refrigerant connecting pipe and the water connecting pipe in a power-off state, and the temperature memory switch can connect the other of the refrigerant connecting pipe and the water connecting pipe when the temperature is not higher than the set temperature. The driving assembly includes a first magnet and an opening and closing body configured with a second magnet. When the first switch connects the refrigerant connecting pipe, the first magnet moves in the direction of the second magnet under the thrust of the refrigerant from the refrigerant connecting pipe, so that the opening and closing body can connect the water flow path between the water connecting pipe and the drain outlet. Therefore, when the first switch connects the refrigerant connecting pipe and the second switch connects the water connecting pipe, that is, the energized closed switch is in a power-off state, and the temperature sensed by the temperature memory switch is not higher than the set temperature, the water from the water connecting pipe can be discharged from the drain outlet. That is to say, the drainage device of the embodiment of the present application uses the refrigerant in the refrigerant pipeline of the heat pump equipment to discharge the water in the water path of the heat pump equipment from the drain outlet when the power-on closed switch is in the power-off state and the temperature sensed by the temperature memory switch is not higher than the set temperature. Therefore, in low-temperature weather, when there is a power outage or the user accidentally turns off the power, the water in the water path of the heat pump equipment can be automatically drained without the need for manual operation by the user. While facilitating drainage, it can also avoid as much as possible the water path of the heat pump equipment and the components involved in the water circulation from being damaged by water freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a structural schematic diagram of the drainage device of the first embodiment of the present application in a non-drainage state;

[0046] Figure 2 for Figure 1The structural schematic diagram of the drainage device shown is in a drainage state;

[0047] Figure 3 This is a structural schematic diagram of the drainage device of the second embodiment of the present application in a non-drainage state;

[0048] Figure 4 It is a structural schematic diagram of a drainage device in a non-draining state according to a third embodiment of the present application from one perspective, in which the water channel connecting pipe and the opening and closing member are in cross-section;

[0049] Figure 5 for Figure 4 A partial schematic diagram of the drainage device shown in another perspective, in which the water connection pipe, the drainage pipe and the opening and closing member are cross-sectional views;

[0050] Figure 6 for Figure 4 The structural schematic diagram of the drainage device shown is in a drainage state;

[0051] Figure 7 for Figure 6 The partial schematic diagram of the drainage device shown in another perspective, in which the water connection pipe, drainage pipe and opening and closing member are in cross-section.

[0052] Description of Reference Numerals

[0053] Pipeline assembly 10; refrigerant connecting pipe 11; first avoidance port 11a; first limiting portion 11b; water channel connecting pipe 12; main water channel pipe 121; limiting ring 122; drain pipe 13; drain port 13a; second avoidance port 13b; second limiting portion 13c; third limiting portion 13d; bypass pipeline 14; bypass capillary 141; bypass connecting pipe 142; one-way valve 143; switch assembly 20; first switch 21; second switch 22; drive assembly 30; first magnet 31; opening and closing body 32; second magnet 321; slider 322; drain channel 322a; first water outlet 322b; first transmission member 323; second transmission member 324; gear 3241; opening and closing member 3242; water outlet 3242a; third water outlet 3242b; first elastic return member 40; second elastic return member 50; limiting member 60. DETAILED DESCRIPTION

[0054] An embodiment of the present application provides a drainage device for heat pump equipment, see Figures 1 to 7 The drainage device includes a pipeline assembly 10, a switch assembly 20 and a drive assembly 30.

[0055] The pipe assembly 10 includes a refrigerant connecting pipe 11, a water connecting pipe 12, and a drain pipe 13 having a drain port 13a. The refrigerant connecting pipe 11 is a pipe for supplying refrigerant flow, the water connecting pipe 12 is a pipe for supplying water flow, and the drain pipe 13 is a pipe for discharging the water flow from the water connecting pipe 12 from the drain port 13a.

[0056] The switch assembly 20 includes a first switch 21 for selectively connecting or disconnecting the refrigerant connecting pipe 11 and a second switch 22 for selectively connecting or disconnecting the water connecting pipe 12. One of the first switch 21 and the second switch 22 is an energized closed switch, and the other is a temperature memory switch.

[0057] A power-on-close switch is a switch that is closed when powered on and open when powered off.

[0058] The temperature memory switch is a switch that opens and closes according to temperature changes. The opening and closing of the temperature memory switch is mainly related to the temperature.

[0059] In an embodiment of the present application, the temperature memory switch can be configured to open and close according to changes in outdoor temperature.

[0060] One of the first switch 21 and the second switch 22 is an energized closing switch, and the other is a temperature memory switch, which means that the energized closing switch is used to connect one of the refrigerant connecting pipe 11 and the water connecting pipe 12 in the power-off state, and the temperature memory switch is used to connect the other of the refrigerant connecting pipe 11 and the water connecting pipe 12 when the temperature is not higher than the set temperature. That is to say, if the energized closing switch is used to selectively connect or cut off the refrigerant connecting pipe 11, the temperature memory switch is used to selectively connect or cut off the water connecting pipe 12, and if the energized closing switch is used to selectively connect or cut off the water connecting pipe 12, the temperature memory switch is used to selectively connect or cut off the refrigerant connecting pipe 11.

[0061] Among them, the set temperature is a preset temperature value. In low temperature weather, in order to be able to open the temperature memory switch before the water freezes, the set temperature should generally be greater than or equal to the freezing point of water in the current environment. For example, under standard atmospheric pressure, the set temperature can be set to 0°C, 1°C, etc.

[0062] The temperature is not higher than the set temperature means that the temperature is equal to the set temperature or lower than the set temperature.

[0063] There are many types of temperature memory switches. For example, in one embodiment, the temperature memory switch is not electrically connected to the control circuit of the heat pump device. The temperature memory switch completely relies on its own characteristics to achieve opening and closing. In other words, as long as the temperature sensed by the temperature memory switch is not higher than the set temperature, the temperature memory switch can be automatically opened. After the temperature memory switch is opened, if the temperature sensed by the temperature memory switch is higher than the set temperature, the temperature memory switch will automatically close. For this type of temperature memory switch, the temperature memory switch can also be automatically opened and closed after power failure.

[0064] In another embodiment, the temperature memory switch can also be electrically connected to the control circuit of the heat pump device, that is, the temperature memory switch needs to cooperate with the control circuit to realize opening and closing. For example, the temperature memory switch can be configured with a temperature sensor. In the power-on state, when the temperature sensor senses that the current temperature is not higher than the set temperature, a first control signal is transmitted to the control circuit, and the control circuit controls the temperature memory switch to open according to the received first control signal. When the temperature sensor senses that the current temperature is higher than the set temperature, a second control signal is transmitted to the control circuit, and the control circuit controls the temperature memory switch to close according to the received second control signal. This temperature memory switch can be opened and closed in the power-on state, but after power failure, no matter how the temperature changes, the temperature memory switch cannot be switched on and off. That is to say, if the temperature memory switch remains in the open state before power failure, then after power failure, no matter how the temperature changes, the temperature memory switch still remains in the open state. If the temperature memory switch remains in the closed state before power failure, then after power failure, no matter how the temperature changes, the temperature memory switch still remains in the closed state. For this type of temperature memory switch, the temperature memory switch can be controlled to remain in the open state when the power is on. For example, the set temperature can be set to a relatively high temperature value according to the temperature in cold weather. In this way, in cold weather, the temperature memory switch will basically remain in the open state, and even if there is a power outage, the temperature memory switch will not be closed.

[0065] For example, see Figure 1, the power-on closing switch is arranged on the refrigerant connecting pipe 11, and the temperature memory switch is arranged on the water connecting pipe 12. When the power-on closing switch is in the power-on state, the power-on closing switch cuts off the refrigerant connecting pipe 11, that is, the power-on closing switch cuts off the refrigerant flow path in the refrigerant connecting pipe 11, and the refrigerant cannot flow along the refrigerant flow path. When the temperature is higher than the set temperature, the temperature memory switch cuts off the water connecting pipe 12, that is, the temperature memory switch cuts off the water flow path in the water connecting pipe 12, and the water cannot flow in the water connecting pipe 12. When the power-on closing switch is de-energized, the power-on closing switch conducts the refrigerant connecting pipe 11, that is, the power-on closing switch conducts the refrigerant flow path in the refrigerant connecting pipe 11. However, if the temperature sensed by the temperature memory switch is higher than the set temperature, the temperature memory switch still remains in the closed state of cutting off the water connecting pipe 12, which is equivalent to the refrigerant connecting pipe 11 being switched to the conducting state, but the water connecting pipe 12 still remains in the cut-off state. If the temperature sensed by the temperature memory switch is equal to the set temperature or lower than the set temperature, the temperature memory switch will open the water connecting pipe 12. That is to say, only when the temperature sensed by the temperature memory switch is equal to the set temperature or lower than the set temperature, the temperature memory switch will open the water flow path in the water connecting pipe 12.

[0066] It should be noted that when the power-on closing switch is in the power-on state, if the temperature sensed by the temperature memory switch is equal to the set temperature or lower than the set temperature, the temperature memory switch will also turn on the water connecting pipe 12. However, since the power-on closing switch is in the power-on state, the power-on closing switch still remains in the closed state of cutting off the refrigerant connecting pipe 11, which is equivalent to the water connecting pipe 12 being switched to the on state, but the refrigerant connecting pipe 11 still remains in the off state.

[0067] That is to say, the conditions for both the power-on closing switch and the temperature memory switch to be opened are that the power-on closing switch is in a power-off state and the temperature sensed by the temperature memory switch is not higher than the set temperature.

[0068] In some embodiments, the power-on closing switch may be set on the water connection pipe 12, and the temperature memory switch may be set on the refrigerant connection pipe 11. The coordination method of the power-on closing switch and the temperature memory switch is roughly the same as the above embodiment, which will not be repeated here.

[0069] Please continue reading Figure 1The driving component 30 includes a first magnet 31 and an opening and closing body 32 equipped with a second magnet 321, wherein the opening and closing body 32 may be provided with only the second magnet 321, or may be a combination of the second magnet 321 and other components. The first magnet 31 and the second magnet 321 are arranged opposite to each other at one end with the same polarity, that is, the positive pole of the first magnet 31 faces the positive pole of the second magnet 321, or the negative pole of the first magnet 31 faces the negative pole of the second magnet 321.

[0070] Figure 1 The first magnet 31 in the embodiment can be slidably disposed in the refrigerant connecting pipe 11 and is in sealing contact with the wall of the refrigerant connecting pipe 11. In some embodiments, the first magnet 31 may not be in sealing contact with the wall of the refrigerant connecting pipe 11. For example, a piston in sealing contact with the wall of the refrigerant connecting pipe 11 may be disposed in the refrigerant connecting pipe 11, and the first magnet 31 is connected to the piston, which is equivalent to the piston being able to drive the first magnet 31 to move together during the sliding process. In addition, for the driving assembly 30 provided with a piston, the first magnet 31 may be disposed outside the pipeline assembly 10.

[0071] Figure 1 The second magnet 321 in the drain pipe 13 is slidably disposed in the drain pipe 13, and the second magnet 321 may be in sealing contact with the wall of the drain pipe 13, or may not be in sealing contact with the wall of the drain pipe 13. In some embodiments, see Figure 4 The second magnet 321 may also be disposed outside the pipeline assembly 10 .

[0072] See also Figure 1 , for the first magnet 31 disposed in the refrigerant connecting pipe 11, a first limiting portion 11b is disposed in the refrigerant connecting pipe 11, and the first limiting portion 11b is located on the side of the first magnet 31 away from the first switch 21. That is to say, when the first magnet 31 moves to the direction where the second magnet 321 is located to the limit position, the first magnet 31 abuts against the first limiting portion 11b, thereby limiting the first magnet 31.

[0073] For the first magnet 31 arranged in the refrigerant connecting pipe 11, if the sealing effect of the area in the refrigerant connecting pipe 11 located on the side of the first magnet 31 away from the refrigerant is better, a first exhaust hole can be provided on the refrigerant connecting pipe 11 to discharge the air in the refrigerant connecting pipe 11 located on the side of the first magnet 31 away from the refrigerant when the first magnet 31 moves toward the direction where the second magnet 321 is located.

[0074] For the second magnet 321 arranged in the drain pipe 13, if the sealing effect of the area in the drain pipe 13 located on the side of the second magnet 321 away from the closed body 32 is better, a second exhaust hole can also be provided on the drain pipe 13 to discharge the air in the drain pipe 13 located on the side of the second magnet 321 away from the closed body 32 when the second magnet 321 moves toward the direction of the first magnet 31 (that is, the second magnet 321 is reset).

[0075] Also, see Figure 1 , the refrigerant connecting pipe 11 can be separated from the drain pipe 13, and separation means that the refrigerant connecting pipe 11 and the drain pipe 13 are two independently set pipes, and the two are not connected together to form an integral structure. For the drainage device in which the refrigerant connecting pipe 11 and the drain pipe 13 are separated, a first avoidance port 11a is provided at the part of the refrigerant connecting pipe 11 facing the second magnet 321, and a second avoidance port 13b is provided at the part of the drain pipe 13 facing the first magnet 31. The first avoidance port 11a and the second avoidance port 13b are used to ensure that a repulsive force can be generated between the first magnet 31 and the second magnet 321, and can also play a role in exhausting gas.

[0076] Please continue reading Figure 2 When the first switch 21 conducts the refrigerant connecting pipe 11, the first magnet 31 moves toward the direction where the second magnet 321 is located under the thrust of the refrigerant from the refrigerant connecting pipe 11, so that the opening and closing body 32 conducts the water flow path between the water connection pipe 12 and the drain port 13a. The thrust of the refrigerant can act on the first magnet 31 directly or through other intermediate parts, as long as the first magnet 31 can move.

[0077] The water flow path between the water channel connecting pipe 12 and the drain port 13 a refers to the path along which the water flows from the water channel connecting pipe 12 to the drain port 13 a .

[0078] Specifically, see Figure 1 When the first switch 21 is in the closed state of cutting off the refrigerant connecting pipe 11, the opening and closing body 32 cuts off the water flow path between the water connecting pipe 12 and the drain outlet 13a. At this time, even if the second switch 22 is in the open state of conducting the water connecting pipe 12, the water flow from the water connecting pipe 12 will not be discharged from the drain outlet 13a.

[0079] See also Figure 2After the first switch 21 conducts the refrigerant connecting pipe 11, the refrigerant flows along the refrigerant flow path in the refrigerant connecting pipe 11, and can apply thrust to the driving component 30. The first magnet 31 can move in the direction of the second magnet 321 under the thrust applied by the refrigerant. Since the ends of the first magnet 31 and the second magnet 321 with the same polarity are arranged opposite to each other, when the first magnet 31 approaches the second magnet 321, a repulsive force is generated between the first magnet 31 and the second magnet 321. Under the action of the repulsive force, the second magnet 321 and the first magnet 31 move in the same direction, thereby enabling the opening and closing body 32 to conduct the water flow path between the water connection pipe 12 and the drain port 13a. If the second switch 22 is in the closed state of cutting off the water connection pipe 12 at this time, the water flow from the water connection pipe 12 will still not be discharged from the drain port 13a. If the second switch 22 is switched to the open state, the water flow can be discharged through the drain port 13a. That is to say, as long as the first switch 21 conducts the refrigerant connecting pipe 11, the opening and closing body 32 can conduct the water flow path between the water connecting pipe 12 and the drain outlet 13a. However, only when the first switch 21 and the second switch 22 are both in the open state, the water flow from the water connecting pipe 12 will be discharged from the drain outlet 13a.

[0080] Another embodiment of the present application provides a heat pump device, which includes a refrigerant pipeline, a water circuit and the drainage device described in any embodiment of the present application, the refrigerant connecting pipe 11 is connected to the refrigerant pipeline, and the water circuit connecting pipe 12 is connected to the water circuit.

[0081] The heat pump equipment can be a heat pump dual-generation system, that is, the heat pump equipment can have two ends, such as floor heating and air-conditioning indoor units (or fan coil units). The heat pump equipment can also be a heat pump multi-generation system, that is, the heat pump equipment can have more than two ends, such as floor heating, hot water tanks and air-conditioning indoor units (or fan coil units).

[0082] The refrigerant pipeline is a pipeline for the flow of refrigerant during the operation of the heat pump device, and the waterway is a pipeline for the flow of water during the operation of the heat pump device. The connection between the refrigerant connecting pipe 11 and the refrigerant pipeline means that the refrigerant in the refrigerant connecting pipe 11 comes from the refrigerant pipeline of the heat pump device, and the connection between the waterway connecting pipe 12 and the waterway means that the water flow in the waterway connecting pipe 12 comes from the waterway of the heat pump device. In other words, when the refrigerant connecting pipe 11 and the waterway connecting pipe 12 are both connected, the water in the waterway of the heat pump device flows into the waterway connecting pipe 12 and is then discharged through the drain port 13a.

[0083] Exemplarily, for a heat pump device using natural water or ground water, the refrigerant connecting pipe 11 can be connected to the refrigerant pipeline through the host refrigerant pipe of the heat pump host, and the water connecting pipe 12 can be connected to the water circuit through the host water pipe of the heat pump host. That is to say, the host refrigerant pipe of the heat pump host is connected to the refrigerant pipeline, the host water pipe is connected to the water circuit, the refrigerant in the refrigerant pipeline flows into the refrigerant connecting pipe 11 through the host refrigerant pipe, and the water in the water circuit flows into the water circuit connecting pipe 12 through the host water pipe.

[0084] Exemplarily, for a heat pump device using natural fluorine and local water, a hydraulic module having a hydraulic refrigerant pipe and a hydraulic water pipe is provided in the heat pump device. The refrigerant connecting pipe 11 can be connected to the refrigerant pipeline through the hydraulic refrigerant pipe, and the waterway connecting pipe 12 can be connected to the waterway through the hydraulic water pipe. That is to say, the hydraulic refrigerant pipe of the hydraulic module is connected to the refrigerant pipeline, the hydraulic water pipe is connected to the waterway, the refrigerant in the refrigerant pipeline flows into the refrigerant connecting pipe 11 through the hydraulic refrigerant pipe, and the water in the waterway flows into the waterway connecting pipe 12 through the hydraulic water pipe.

[0085] The drainage device of the embodiment of the present application is provided with a pipeline assembly 10, a switch assembly 20 and a drive assembly 30. The pipeline assembly 10 includes a refrigerant connecting pipe 11, a water connecting pipe 12 and a drainage pipe 13 having a drainage port 13a, wherein the refrigerant connecting pipe 11 is used to communicate with the refrigerant pipeline of the heat pump device, and the water connecting pipe 12 is used to communicate with the water circuit of the heat pump device. The switch assembly 20 includes a first switch 21 for selectively connecting or cutting off the refrigerant connecting pipe 11 and a second switch 22 for selectively connecting or cutting off the water connecting pipe 12. One of the first switch 21 and the second switch 22 is an energized closed switch, and the other is a temperature memory switch, that is, the energized closed switch can connect one of the refrigerant connecting pipe 11 and the water connecting pipe 12 in the power-off state, and the temperature memory switch can connect the other of the refrigerant connecting pipe 11 and the water connecting pipe 12 when the temperature is not higher than the set temperature. The drive assembly 30 includes a first magnet 31 and a second switch 22 configured with a The opening and closing body 32 of the magnet 321, when the first switch 21 is connected to the refrigerant connecting pipe 11, the first magnet 31 moves toward the direction of the second magnet 321 under the thrust of the refrigerant from the refrigerant connecting pipe 11, so that the opening and closing body 32 can connect the water flow path between the water connecting pipe 12 and the drain outlet 13a. Therefore, when the first switch 21 is connected to the refrigerant connecting pipe 11 and the second switch 22 is connected to the water connecting pipe 12, that is, the powered closed switch is in the power-off state, and the temperature sensed by the temperature memory switch is not higher than the set temperature, the water from the water connecting pipe 12 can be discharged from the drain outlet 13a. That is to say, the drainage device of the embodiment of the present application uses the refrigerant in the refrigerant pipeline of the heat pump equipment to discharge the water in the water path of the heat pump equipment from the drain port 13a when the power-on closed switch is in the power-off state and the temperature sensed by the temperature memory switch is not higher than the set temperature. Therefore, in low-temperature weather, when there is a power outage or the user accidentally turns off the power, the water in the water path of the heat pump equipment can be automatically drained without the need for manual operation by the user. While facilitating drainage, it can also avoid as much as possible the water path of the heat pump equipment and the components involved in the water circulation from being damaged by water freezing.

[0086] In one embodiment, please refer to Figure 1 The drainage device may be provided with a first elastic reset member 40, and the first elastic reset member 40 may be a member capable of producing elastic deformation, such as a tension spring and a compression spring. Figure 1 The first elastic return member 40 shown in the figure is directly connected to the first magnet 31. In some embodiments, the first elastic return member 40 may also be indirectly connected to the first magnet 31 through an intermediate connecting member. If the first elastic return member 40 is a compression spring, then the first elastic return member 40 may not be connected to the first magnet 31.

[0087] See also Figure 2The pipeline assembly 10 includes a bypass pipeline 14 connected to the refrigerant connecting pipe 11. When the first switch 21 is turned on the refrigerant connecting pipe 11, the first magnet 31 causes the first elastic return member 40 to generate elastic deformation through movement, that is, when the driving assembly 30 is moved under the action of the refrigerant from the refrigerant connecting pipe 11, the driving assembly 30 also applies a force to the first elastic return member 40, or in other words, the force of the refrigerant is greater than the elastic deformation capacity of the first elastic return member 40, thereby, the first elastic return member 40 can be elastically deformed.

[0088] Please continue reading Figure 1 When the first switch 21 switches from an open state that conducts the refrigerant connecting pipe 11 to a closed state that blocks the refrigerant connecting pipe 11, the first magnet 31 is reset under the elastic force of the first elastic reset member 40, and at least part of the refrigerant in the refrigerant connecting pipe 11 between the drive assembly 30 and the first switch 21 flows back through the bypass line 14.

[0089] Backflow means that at least part of the refrigerant between the driving assembly 30 and the first switch 21 flows back to the refrigerant pipeline of the heat pump device through the bypass pipeline 14, that is, the bypass pipeline 14 is connected to the refrigerant pipeline.

[0090] It can be understood that the bypass pipe 14 can be directly connected to the refrigerant pipeline. For heat pump equipment using natural water and ground water, the bypass pipe 14 can also be connected to the refrigerant pipeline through the main refrigerant pipe of the heat pump main unit. For heat pump equipment using natural fluorine and ground water, the bypass pipe 14 can also be connected to the refrigerant pipeline through the hydraulic refrigerant pipe of the hydraulic refrigerant pipe.

[0091] Specifically, after the first elastic reset member 40 produces elastic deformation, regardless of whether the second switch 22 is switched from the open state of the water circuit connecting pipe 12 to the closed state of the water circuit connecting pipe 12, as long as the first switch 21 is switched from the open state to the closed state, the force of the refrigerant will be reduced, and the driving component 30 will move in the direction opposite to the previous movement direction under the elastic force of the first elastic reset member 40. During the movement, at least part of the refrigerant in the refrigerant connecting pipe 11 between the driving component 30 and the first switch 21 flows back to the refrigerant pipeline of the heat pump equipment through the bypass pipeline 14 under the extrusion of the driving component 30, thereby resetting the driving component 30.

[0092] The bypass line 14 can have various structural forms. For example, see Figure 1 The bypass line 14 includes a bypass capillary tube 141, which is connected to the region of the refrigerant connecting pipe 11 between the drive assembly 30 and the first switch 21. That is, at least part of the refrigerant between the drive assembly 30 and the first switch 21 can flow back through the bypass capillary tube 141.

[0093] For example, see Figure 3 The bypass pipeline 14 may also include a bypass connecting pipe 142 and a one-way valve 143 disposed on the bypass connecting pipe 142. The one-way valve 143 is used to control the refrigerant to flow from the refrigerant connecting pipe 11 to the refrigerant pipeline, but not to flow back to the refrigerant connecting pipe 11. The bypass connecting pipe 142 is connected to the area of ​​the refrigerant connecting pipe 11 between the drive assembly 30 and the first switch 21. In other words, at least part of the refrigerant between the drive assembly 30 and the first switch 21 can flow back through the bypass connecting pipe 142.

[0094] In some embodiments, the first elastic reset member 40 may not be provided. For example, the first magnet 31 may be reset manually.

[0095] In one embodiment, please refer to Figure 1 The drainage device may further be provided with a second elastic reset member 50, and the second elastic reset member 50 may also be a component capable of producing elastic deformation, such as a tension spring or a compression spring. Figure 1 The second elastic return member 50 shown in the figure is directly connected to the opening and closing body 32. In some embodiments, the second elastic return member 50 may also be indirectly connected to the opening and closing body 32 through an intermediate connecting member. If the second elastic return member 50 is a compression spring, then the second elastic return member 50 may not be connected to the opening and closing body 32.

[0096] Please continue reading Figure 1 and Figure 2 When the first switch 21 conducts the refrigerant connection pipe 11, the opening and closing body 32 causes the second elastic reset member 50 to produce elastic deformation through movement. When the first switch 21 is switched from the open state to the closed state, the second magnet 321 and the opening and closing body 32 are reset under the elastic force of the second elastic reset member 50.

[0097] Specifically, after the first switch 21 is closed, the opening and closing body 32 moves toward the direction where the first magnet 31 is located under the elastic force of the second elastic restoring member 50 , thereby restoring the opening and closing body 32 .

[0098] In some embodiments, the second elastic reset member 50 may not be provided. For example, the second magnet 321 and the opening and closing body 32 may be reset manually.

[0099] The drainage device may also have various structural forms. For example, in one embodiment, please refer to Figure 1The water connection pipe 12 is connected to the drain pipe 13, that is, the water connection pipe 12 and the drain pipe 13 are connected together to form an integral structure, for example, the water connection pipe 12 can be welded to the drain pipe 13, or the water connection pipe 12 and the drain pipe 13 can be integrally formed. The refrigerant connection pipe 11 can be connected to the drain pipe 13 or separated from the drain pipe 13.

[0100] Please continue reading Figure 1 The opening and closing body 32 can be arranged in the drain pipe 13. For the refrigerant connecting pipe 11 separated from the drain pipe 13, the refrigerant connecting pipe 11 can be as close to the drain pipe 13 as possible, for example, the distance between the drain pipe 13 and the refrigerant connecting pipe 11 can be less than or equal to 30 mm. Figure 1 The opening and closing body 32 is provided with a slider 322, which is arranged on the side of the second magnet 321 away from the first magnet 31, so as to conduct the water flow path between the water connection pipe 12 and the drain port 13a. In other words, the slider 322 is slidably arranged in the drain pipe 13, and the slider 322 may be in sealing contact with the pipe wall of the refrigerant connection pipe 11, or may not be in sealing contact with the pipe wall of the refrigerant connection pipe 11. The second magnet 321 drives the slider 322 to slide, so that the slider 322 conducts the water flow path between the water connection pipe 12 and the drain port 13a.

[0101] Specifically, see Figure 1 When the first switch 21 is in the closed state, the slider 322 cuts off the water flow path between the water connection pipe 12 and the drain port 13a. Figure 2 When the first switch 21 turns on the refrigerant connecting pipe 11, the first magnet 31 moves toward the direction of the second magnet 321 under the thrust exerted by the refrigerant, and the second magnet 321 moves in the same direction as the first magnet 31 under the action of the repulsive force. Thus, the second magnet 321 can push the slider 322 to slide, so that the slider 322 turns on the water flow path between the water connecting pipe 12 and the drain outlet 13a.

[0102] For further information, see Figure 1 The slider 322 may be provided with a drainage channel 322a. When the slider 322 conducts the water flow path between the water channel connecting pipe 12 and the drain port 13a, the water channel connecting pipe 12 is connected to the drain port 13a through the drainage channel 322a. That is, after the second switch 22 is turned on, the water from the water channel connecting pipe 12 first flows into the drainage channel 322a on the slider 322, then flows out from the drainage channel 322a, and then is discharged through the drain port 13a.

[0103] For example, see Figure 1, the drainage channel 322a is connected to the water channel connecting pipe 12, that is, the drainage channel 322a and the water channel connecting pipe 12 are always kept in a connected state, and as long as the second switch 22 is turned on, the water flow from the water channel connecting pipe 12 can flow into the drainage channel 322a. The slider 322 has a first water outlet 322b connected to the drainage channel 322a; when the first switch 21 is in a closed state, the first water outlet 322b is staggered with the drainage port 13a, that is, when the first switch 21 is closed, the first water outlet 322b is not connected to the drainage port 13a, and if the second switch 22 is turned on, the water flow will not be discharged from the drainage port 13a.

[0104] Please continue reading Figure 2 When the slider 322 opens the water flow path between the water connection pipe 12 and the drain port 13a, the first water port 322b moves to a position connected with the drain port 13a. That is, after the first switch 21 is turned on, the slider 322 slides under the thrust of the refrigerant to move the first water port 322b to a position connected with the drain port 13a. Thus, when the first switch 21 and the second switch 22 are both turned on, water can be discharged from the drain port 13a.

[0105] In some embodiments, the refrigerant connection pipe 11 can be connected to the side wall of the drain pipe 13, and the drain channel 322a is always connected to the drain port 13a. At the same time, a second water outlet connected to the drain channel 322a is provided on the slider 322. When the first switch 21 is in the closed state, the second water outlet is staggered with the water channel connection pipe 12; when the slider 322 conducts the water flow path between the water channel connection pipe 12 and the drain port 13a, the second water outlet moves to a position connected to the drain port 13a. In other words, the second water outlet is provided on the side of the drain channel 322a close to the water channel connection pipe 12 and cooperates with the water channel connection pipe 12.

[0106] In some embodiments, a first water outlet 322b and a second water outlet can also be set on the slider 322 at the same time. When the first switch 21 is in a closed state, the first water outlet 322b is staggered with the drain outlet 13a, and the second water outlet is staggered with the water path connecting pipe 12; when the slider 322 conducts the water flow path between the water path connecting pipe 12 and the drain outlet 13a, the first water outlet 322b is connected with the drain outlet 13a, and the second water outlet is connected with the water path connecting pipe 12.

[0107] In some embodiments, the slider 322 may not be provided with a drainage channel 322a. For example, when the first switch 21 is in a closed state, the slider 322 closes the drain outlet 13a. After the first switch 21 is turned on, the slider 322 slides to be offset from the drain outlet 13a, which is equivalent to the water flow from the water channel connecting pipe 12 flowing into the drain pipe 13 and then discharged through the drain outlet 13a without flowing through the slider 322.

[0108] In one embodiment, please refer to Figure 1 and Figure 2 A second limiting portion 13c is provided in the drain pipe 13, and the second limiting portion 13c is located on the side of the second magnet 321 away from the slider 322. That is to say, when the second magnet 321 moves to the extreme position in the direction of the first magnet 31, the second magnet 321 abuts against the second limiting portion 13c, thereby limiting the second magnet 321 to prevent the second magnet 321 from falling out of the drain pipe 13 in some cases.

[0109] See also Figure 1 and Figure 2 A third limiting portion 13d can also be provided in the drain pipe 13, and the third limiting portion 13d is located on the side of the slider 322 away from the second magnet 321. That is to say, when the second magnet 321 drives the slider 322 to move to the extreme position in the direction away from the first magnet 31, the slider 322 abuts against the third limiting portion 13d, thereby also limiting the slider 322 to avoid, in some cases, such as when the moving distance of the first magnet 31 is too large, the slider 322 is caused to move too far and cross the position of the water flow path between the conductive water channel connecting pipe 12 and the drain outlet 13a.

[0110] Figure 1 The second limiting portion 13c and the third limiting portion 13d are provided in the drain pipe 13 at the same time. In some embodiments, only the second limiting portion 13c or only the third limiting portion 13d may be provided in the drain pipe 13, or neither the second limiting portion 13c nor the third limiting portion 13d may be provided.

[0111] Also, see Figure 1 For the drainage device provided with the second elastic reset member 50 , the second elastic reset member 50 can be arranged in the drainage pipe 13 .

[0112] In another embodiment, see Figures 4 to 7 The refrigerant connecting pipe 11 is separated from the drain pipe 13 , and the water channel connecting pipe 12 can be connected to the drain pipe 13 or separated from the drain pipe 13 .

[0113] Please continue reading Figures 4 to 7The opening and closing body 32 includes a first transmission member 323 and a second transmission member 324. The first transmission member 323 is connected to the second magnet 321. The first transmission member 323 can be directly connected to the second magnet 321, or the first transmission member 323 can be indirectly connected to the second magnet 321 through an intermediate connection member. The first transmission member 323, driven by the second magnet 321, drives the second transmission member 324 to move, so that the second transmission member 324 conducts the water flow path between the water connection pipe 12 and the drain outlet 13a. In other words, the water flow path between the water connection pipe 12 and the drain outlet 13a can also be conducted by the cooperation of two transmission members.

[0114] For example, see Figures 4 to 7 The first transmission member 323 is a rack, and the second transmission member 324 includes a gear 3241 and an opening and closing member 3242 arranged on the gear 3241, and the rack is meshed with the gear 3241. Figures 4 to 7 The opening and closing member 3242 extends into the water channel connecting pipe 12 and the drain pipe 13. In some embodiments, the opening and closing member 3242 may only extend into the water channel connecting pipe 12, or only extend into the drain pipe 13.

[0115] Please continue reading Figure 6 and Figure 7 The rack is driven by the second magnet 321 to drive the gear 3241 to rotate, so that the opening and closing member 3242 opens the water flow path between the water channel connecting pipe 12 and the drain outlet 13a.

[0116] Specifically, see Figure 4 and Figure 5 When the first switch 21 is in the closed state, the opening and closing member 3242 cuts off the water flow path between the water channel connecting pipe 12 and the drain outlet 13a.

[0117] See also Figure 6 and Figure 7 After the first switch 21 is turned on, the refrigerant pushes the first magnet 31 to move in the direction of the second magnet 321, and the second magnet 321 drives the rack to move together. During the movement, the rack drives the gear 3241 to rotate, and the opening and closing member 3242 rotates with the gear 3241, thereby conducting the water flow path between the water connection pipe 12 and the drain outlet 13a.

[0118] The opening and closing member 3242 can have a variety of structural forms, for example, see Figures 4 to 7The opening and closing member 3242 may be a sleeve having a water passage 3242a. When the sleeve conducts the water flow path between the water connection pipe 12 and the drain port 13a, the water connection pipe 12 is connected to the drain port 13a through the water passage 3242a. That is, after the second switch 22 is turned on, the water from the water connection pipe 12 first flows into the water passage 3242a, then flows out of the water passage 3242a, and then is discharged through the drain port 13a.

[0119] by Figures 4 to 7 Taking the drainage device shown as an example, the axis of the waterway connecting pipe 12 can extend along a first direction, and the axis of the drainage pipe 13 can extend along a second direction intersecting with the first direction. That is, the extension direction of the waterway connecting pipe 12 can be perpendicular to the extension direction of the drainage pipe 13, or it can be oblique to the extension direction of the drainage pipe 13.

[0120] Please continue reading Figures 4 to 7 A third water outlet 3242b connected to the water passage 3242a is provided on the side wall of the sleeve; the sleeve passes through the water channel connecting pipe 12 and is sleeved with the drain pipe 13, the third water outlet 3242b is located in the water channel connecting pipe 12, and the water passage 3242a is connected to the drain pipe 13, that is, the part of the sleeve where the third water outlet 3242b is provided is passed through the water channel connecting pipe 12, and the water passage 3242a is always kept connected with the drain pipe 13.

[0121] In order to facilitate the sleeve to be provided with the third water outlet 3242b, the portion thereof is inserted into the water connection pipe 12. For example, see Figures 4 to 7 The water channel connecting pipe 12 can be provided with a main water channel pipe 121 and a limiting ring 122 connected to the main water channel pipe 121, and the sleeve is sealingly inserted into the limiting ring 122, that is, the limiting ring 122 can limit the sleeve. At the same time, the limiting ring 122 and the sleeve can be sealed to prevent water from overflowing from the gap between the limiting ring 122 and the sleeve as much as possible.

[0122] See also Figure 4 and Figure 5 When the first switch 21 is in a closed state to cut off the refrigerant connecting pipe 11, the third water outlet 3242b is offset from the water flow path in the water connecting pipe 12. That is to say, even if the second switch 22 is turned on, the water from the water connecting pipe 12 will not flow into the water passage 3242a.

[0123] See also Figure 6 and Figure 7, when the sleeve conducts the water flow path between the water channel connecting pipe 12 and the drain port 13a, the third water outlet 3242b moves to the water flow path in the water channel connecting pipe 12. That is to say, after the first switch 21 is turned on, the gear 3241 can drive the sleeve to rotate by rotating under the drive of the rack, thereby enabling the third water outlet 3242b to move to the water flow path in the water channel connecting pipe 12. When the first switch 21 and the second switch 22 are both turned on, water can flow from the third water outlet 3242b into the water channel 3242a and then be discharged through the drain port 13a.

[0124] In some embodiments, the sleeve may pass through the drain pipe 13 and be connected with the water connection pipe 12 , the third water outlet 3242 b is located in the drain pipe 13 , and the water passage 3242 a is connected with the water connection pipe 12 .

[0125] In some embodiments, the opening and closing member 3242 may not be a sleeve. For example, the opening and closing member 3242 may be an arc-shaped plate with a fourth water outlet. The arc-shaped plate conducts the water flow path between the water channel connecting pipe 12 and the drain outlet 13a in a manner substantially the same as that of the sleeve, except that compared with the sleeve, the arc-shaped plate does not have the water passage 3242a.

[0126] It should be noted that the relative positions of the water connecting pipe 12 and the drain pipe 13 are not limited to extending the axis of the water connecting pipe 12 along a first direction and extending the axis of the drain pipe 13 along a second direction intersecting the first direction. For example, the water connecting pipe 12 can be set at one end of the drain pipe 13 and connected to the drain pipe 13, and the opening and closing member 3242 can extend into the water connecting pipe 12, or into the drain pipe 13, or into the connection between the water connecting pipe 12 and the drain pipe 13.

[0127] In one embodiment, please refer to Figures 4 to 7 The drainage device may also be provided with a limiting member 60 cooperating with the first transmission member 323 , and the limiting member 60 is located on a side of the first transmission member 323 away from the second magnet 321 .

[0128] Specifically, see Figures 4 to 7 For a drainage device provided with a second elastic reset member 50, the second elastic reset member 50 can be fixed on the limiting member 60, which is equivalent to the limiting member 60 cooperating with the second elastic reset member 50 to limit the first transmission member 323, so as to ensure that the opening and closing member 3242 can move to a position where the water flow path between the water channel connecting pipe 12 and the drain port 13a is connected. In some embodiments, for a drainage device not provided with a second elastic reset member 50 or provided at other positions, the first transmission member 323 can also limit the first transmission member 323 by abutting against the limiting member 60.

[0129] In addition, the drainage device can also be set to a manual drainage mode. In the manual drainage mode, at least one of the first switch 21 and the second switch 22 remains in a normally closed state that is opened manually. That is, at least one of the first switch 21 and the second switch 22 remains in a normally closed state and can only be opened manually. For example, the control circuit can be used to adjust the temperature memory switch and / or the power-on closing switch to always be in a closed state. That is to say, in a power-off state, regardless of low or high temperature, the drainage device will not automatically drain, and drainage can only be performed by manually opening the corresponding switch. In some scenarios, such as when the heat pump equipment needs to be repaired, the drainage device can be switched to the manual drainage mode, thereby improving the humanization of the drainage device.

[0130] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0131] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A drainage device for heat pump equipment, characterized in that: include: A pipe assembly, the pipe assembly comprising a refrigerant connecting pipe for the flow of refrigerant, a water connecting pipe for the flow of water, and a drain pipe having a drain port, the refrigerant connecting pipe being separated from the drain pipe so that the refrigerant connecting pipe and the drain pipe become two independently arranged pipes; A switch assembly, the switch assembly comprising a first switch for selectively connecting or disconnecting the refrigerant connecting pipe and a second switch for selectively connecting or disconnecting the water connecting pipe, one of the first switch and the second switch is an energized closed switch, and the other is a temperature memory switch; A driving component, the driving component includes a first magnet and an opening and closing body configured with a second magnet, the first magnet and the second magnet are arranged opposite to each other at one end with the same polarity, the first magnet is slidably arranged in the refrigerant connecting pipe, and the second magnet is slidably arranged in the drain pipe; when the first switch turns on the refrigerant connecting pipe, the first magnet moves toward the direction of the second magnet under the thrust of the refrigerant from the refrigerant connecting pipe, so that the opening and closing body turns on the water flow path between the water connecting pipe and the drain outlet, so as to discharge the water from the water connecting pipe from the drain outlet.

2. The drainage device according to claim 1, characterized in that: The drain pipe is provided with a second vent hole; and / or, A first avoidance opening is provided at a portion of the refrigerant connecting pipe facing the second magnet, and a second avoidance opening is provided at a portion of the drain pipe facing the first magnet.

3. The drainage device according to claim 1 or 2, characterized in that: The water channel connecting pipe is connected to the drain pipe; the opening and closing body is arranged in the drain pipe; The opening and closing body includes a slider, which is arranged on a side of the second magnet away from the first magnet to conduct a water flow path between the water channel connecting pipe and the drain port.

4. The drainage device according to claim 3, characterized in that: The slider has a drainage channel. When the slider opens the water flow path between the water channel connecting pipe and the drainage port, the water channel connecting pipe is communicated with the drainage port through the drainage channel.

5. The drainage device according to claim 4, characterized in that: The drainage channel is communicated with the water channel connecting pipe, and the slider has a first water outlet communicated with the drainage channel; When the first switch is in a closed state of cutting off the refrigerant connecting pipe, the first water outlet is staggered with the drain outlet; When the slider opens the water flow path between the water channel connecting pipe and the drain port, the first water outlet moves to a position communicating with the drain port.

6. The drainage device according to claim 3, characterized in that: A second limiting portion is provided in the drain pipe, and the second limiting portion is located at a side of the second magnet away from the slider; and / or, A third limiting portion is arranged in the drain pipe, and the third limiting portion is located at a side of the sliding block away from the second magnet.

7. A drainage device for heat pump equipment, characterized in that: include: A pipe assembly, the pipe assembly comprising a refrigerant connecting pipe for the flow of refrigerant, a water connecting pipe for the flow of water, and a drain pipe having a drain port, the refrigerant connecting pipe being separated from the drain pipe so that the refrigerant connecting pipe and the drain pipe become two independently arranged pipes; A switch assembly, the switch assembly comprising a first switch for selectively connecting or disconnecting the refrigerant connecting pipe and a second switch for selectively connecting or disconnecting the water connecting pipe, one of the first switch and the second switch is an energized closed switch, and the other is a temperature memory switch; A driving component, the driving component includes a first magnet and an opening and closing body configured with a second magnet, the first magnet and the second magnet are arranged opposite to each other at one end with the same polarity, the first magnet is slidably arranged in the refrigerant connecting pipe, and the second magnet is arranged outside the pipe assembly; when the first switch connects the refrigerant connecting pipe, the first magnet moves toward the direction of the second magnet under the thrust of the refrigerant from the refrigerant connecting pipe, so that the opening and closing body connects the water flow path between the water connecting pipe and the drain outlet, so as to discharge the water from the water connecting pipe from the drain outlet.

8. The drainage device according to claim 7, characterized in that: The opening and closing body includes a first transmission member and a second transmission member, and the first transmission member is connected to the second magnet; The first transmission member is driven by the second magnet to drive the second transmission member to move, so that the second transmission member opens the water flow path between the water channel connecting pipe and the drain outlet.

9. The drainage device according to claim 8, characterized in that: The first transmission member is a rack, the second transmission member includes a gear and an opening and closing member arranged on the gear, the rack meshes with the gear, and the opening and closing member extends into the water channel connecting pipe and / or the drain pipe; The rack is driven by the second magnet to drive the gear to rotate, so that the opening and closing member opens the water flow path between the water channel connecting pipe and the drain outlet.

10. The drainage device according to claim 9, characterized in that: The opening and closing member is a sleeve having a water passage. When the sleeve opens the water flow path between the water channel connecting pipe and the drain outlet, the water channel connecting pipe is connected to the drain outlet through the water passage.

11. The drainage device according to claim 10, characterized in that: The axis of the water connection pipe extends along a first direction, the axis of the drain pipe extends along a second direction intersecting the first direction, and a third water outlet communicated with the water passage is provided on the side wall of the sleeve; the sleeve passes through the water connection pipe and is sleeved with the drain pipe, the third water outlet is located in the water connection pipe, and the water passage is communicated with the drain pipe; When the first switch is in a closed state of cutting off the refrigerant connecting pipe, the third water outlet is offset from the water flow path in the water channel connecting pipe; When the sleeve opens the water flow path between the water channel connecting pipe and the drain port, the third water outlet moves to the water flow path in the water channel connecting pipe.

12. The drainage device according to claim 11, characterized in that: The water channel connecting pipe comprises a main water channel pipe and a limiting ring connected to the main water channel pipe, and the sleeve is sealingly inserted into the limiting ring.

13. The drainage device according to any one of claims 8 to 10, characterized in that: The drainage device includes a limiting member matched with the first transmission member, and the limiting member is located on a side of the first transmission member away from the second magnet.

14. The drainage device according to claim 1 or 7, characterized in that: The drain device has a manual drain mode, in which at least one of the first switch and the second switch is maintained in a normally closed state that is opened manually.

15. The drainage device according to claim 1 or 7, characterized in that: The drainage device includes a first elastic return member, and the pipeline assembly includes a bypass pipeline connected to the refrigerant connecting pipe; When the first switch conducts the refrigerant connecting pipe, the first magnet moves to cause the first elastic reset member to generate elastic deformation; When the first switch switches from an open state that conducts the refrigerant connecting pipe to a closed state that blocks the refrigerant connecting pipe, the first magnet is reset under the elastic force of the first elastic reset member, and at least part of the refrigerant in the refrigerant connecting pipe between the drive assembly and the first switch flows back through the bypass pipeline.

16. The drainage device according to claim 15, characterized in that: The bypass pipeline includes a bypass capillary tube, and the bypass capillary tube is connected to a region of the refrigerant connecting pipe located between the driving component and the first switch; or, The bypass pipeline includes a bypass connecting pipe and a one-way valve arranged on the bypass connecting pipe. The bypass connecting pipe is connected to the refrigerant connecting pipe in a region between the driving component and the first switch.

17. The drainage device according to claim 1 or 7, characterized in that: The drainage device comprises a second elastic reset member; When the first switch is connected to the refrigerant connecting pipe, the switch body moves to cause the second elastic reset member to generate elastic deformation; When the first switch is switched from an open state for conducting the refrigerant connecting pipe to a closed state for blocking the refrigerant connecting pipe, the opening and closing body is reset under the elastic force of the second elastic reset member.

18. The drainage device according to claim 1 or 7, characterized in that: The refrigerant connecting pipe is provided with a first exhaust hole.

19. The drainage device according to claim 1 or 7, characterized in that: A first limiting portion is disposed in the refrigerant connecting pipe, and the first limiting portion is located at a side of the first magnet away from the first switch.

20. A heat pump device, characterized in that: It comprises a refrigerant pipeline, a water channel and the drainage device according to any one of claims 1 to 19, wherein the refrigerant connecting pipe is connected to the refrigerant pipeline, and the water channel connecting pipe is connected to the water channel.

21. The heat pump device according to claim 20, characterized in that The heat pump device comprises a heat pump host having a host refrigerant pipe and a host water pipe, the refrigerant connecting pipe is connected to the refrigerant pipeline through the host refrigerant pipe, and the water circuit connecting pipe is connected to the water circuit through the host water pipe; or, The heat pump device comprises a hydraulic module having a hydraulic refrigerant pipe and a hydraulic water pipe, the refrigerant connecting pipe is connected to the refrigerant pipeline through the hydraulic refrigerant pipe, and the water channel connecting pipe is connected to the water channel through the hydraulic water pipe.

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