Air source heat pump combined water heater

Abstract

The present invention relates to the technical field of water heaters, and in particular to an air source heat pump combined water heater. In view of the problem that during the heating process of the water heater, the water near the heat exchange tube is heated unevenly with the water at other positions, and the water transfer temperature rate is slow, resulting in high energy consumption and long consumption time. It includes a shell, in which a heating cavity, a heat storage cavity, a water inlet and a water outlet are arranged, and a conduit and a solenoid valve are fixedly connected in the shell; a heat exchange tube is installed in the heating cavity; a moving part is installed in the heat storage cavity, and the moving part is equipped with a heat insulation plate, and the heat insulation plate divides the heat storage cavity into two upper and lower cavities. The present invention promotes hot water to flow into the heating cavity in sequence to exchange heat with the heat exchange tube, while reducing the exchange efficiency between hot water with higher temperature and hot water with lower temperature, thereby increasing the time required for the device to heat the hot water, thereby reducing energy and time consumption.

Description

Technical Field

[0001] The invention belongs to the technical field of water heaters, and in particular relates to an air source heat pump combined water heater. Background Art

[0002] Air source heat pump is a clean new energy technology. Various existing heating devices can be installed at its output end, and it is often used to heat water for residents. Usually, the air source heat pump and the heating device for heating water are combined and installed into an integral device, collectively referred to as air source heat pump combined water heater (also called air source heat pump integrated water heater). The hot water heated by the air source heat pump combined water heater can be stored for backup (refer to the existing integrated electric water heater), or it can be directly connected to the heating equipment for long-term heating. The air source heat pump absorbs the temperature of the surrounding air through the heat exchanger in the compressor, and then makes the high-pressure gaseous heat exchanger flow to the adjacent heating pipe, and heats the water to be heated through the heating pipe. When the air source heat pump combination When the air source heat pump is used to replace the existing electric water heater, the air source heat pump is usually set to indirect start mode. It will only be started when residents use hot water or the hot water temperature drops and needs to be reheated. When the air source heat pump combined water heater heats the hot water with a lowered temperature, it is usually necessary to first heat the surrounding hot water through the heating pipe, and then the hot water transfers the temperature to the hot water at a farther location, radiating the heating of the hot water as a whole. According to the law of heat exchange, when the temperature difference is small, the temperature transfer rate is also low. This results in the need to heat all the hot water in the device by heating pipes. The efficiency of heat conduction to the surrounding only by radiation is low, which causes the compressor to take a long time to start, consumes more energy and takes a long time. Summary of the invention

[0003] In order to overcome the shortcomings that during the heating process of the water heater, the water near the heat exchange tube and the water at other positions are heated unevenly, and the water temperature transfer rate is slow, resulting in high energy consumption and long consumption time, the present invention provides an air source heat pump combined water heater.

[0004] The technical solution is: an air source heat pump combined water heater, including:

[0005] A shell, wherein a heating cavity, a heat storage cavity, a water inlet and a water outlet are arranged in the shell, a conduit and a solenoid valve are fixedly connected in the shell, and the heating cavity and the heat storage cavity are communicated with each other through the conduit and the solenoid valve;

[0006] A heat exchange tube is installed in the heating cavity, and the heat exchange tube is connected to the heat pump;

[0007] A moving part is installed in the temperature storage cavity, the moving part is equipped with a temperature insulation plate, the temperature insulation plate divides the temperature storage cavity into two upper and lower cavities, and the conduit and the solenoid valve are respectively connected to different cavities of the temperature storage cavity;

[0008] The driving mechanism is installed in the heat storage cavity and is used to drive the moving part to drive the heat insulation plate to move, so as to cause the water flow of the two cavities in the heat storage cavity to pass through the heating cavity.

[0009] Furthermore, the movable member is specifically a scissor-type telescopic frame, and temperature sensors are equidistantly installed thereon for measuring the water temperature in adjacent cavities.

[0010] Furthermore, the driving mechanism comprises:

[0011] An electric push rod is installed on a side of the temperature storage cavity close to the moving part, the telescopic end of the electric push rod is fixedly connected to a fixed block, the fixed block is fixedly connected to a first spring telescopic rod, and the telescopic end of the first spring telescopic rod is fixedly connected to a first limit block;

[0012] The second limit block is installed on the moving part, the second limit block has an inclined protrusion, and the second limit block is limitedly matched with the first limit block through the inclined protrusion.

[0013] Furthermore, the number of the inclined protrusions on the second limit block is at least two, and the second limit block is fixedly connected to a magnetic member, and the magnetic member is magnetically matched with the first limit block.

[0014] Furthermore, a flow guiding mechanism for guiding water flow is included, and the flow guiding mechanism is arranged in the heating cavity, and the flow guiding mechanism includes:

[0015] A flow guide shell is installed in the heating cavity, the flow guide shell is provided with a first flow guide groove, the first flow guide groove has the same rotation direction as the heat exchange tube, and the pitch of the first flow guide groove is the same as the pitch of the heat exchange tube, and is used to guide adjacent water flows to always flow along the spiral path of the heat exchange tube;

[0016] A guide core is installed in the heating cavity. The guide core is provided with a spiral groove corresponding to the first guide groove. The spiral groove cooperates with the first guide groove to guide the water flow.

[0017] Furthermore, the connecting point between the conduit and the heating cavity is connected to the first guide groove to reduce the resistance when the water flow is bent.

[0018] Furthermore, the water outlet is located in the heating cavity, the conduit is located on a side close to the water outlet, and the guide shell is also provided with a second guide groove, the rotation direction of the second guide groove is opposite to that of the first guide groove, and is used to promote adjacent water flows to flow along two different paths, thereby promoting the mixing of water flows, and the second guide groove is located between the conduit and the water outlet.

[0019] Furthermore, it also includes:

[0020] A guide block is fixedly connected in the first guide groove, and the guide block is provided with at least two inclined surfaces, all of which are used to guide water flows in different directions. The curvature of the inclined surface of the guide block away from the conduit is greater than the curvature of the inclined surface of the guide block close to the conduit, and is used to guide water flows in different directions.

[0021] Furthermore, it also includes:

[0022] The second spring telescopic rod is fixedly connected to one side of the guide core close to the water outlet. The telescopic end of the second spring telescopic rod is fixedly connected with a movable frame. The movable frame is slidably connected to the shell. The movable frame is fixedly connected to the conduit. The conduit is made of flexible material.

[0023] Furthermore, it also includes:

[0024] An electromagnetic four-way valve is arranged at the connection point between the heat exchange tube and the heat pump. The electromagnetic four-way valve is fixedly connected to the shell and is used to change the flow direction of the heat exchange medium in the heat pump flowing in the heat exchange tube.

[0025] Beneficial effect: The present invention promotes hot water to flow into the heating cavity in sequence to exchange heat with the heat exchange tube, while reducing the exchange efficiency between hot water with higher temperature and hot water with lower temperature, thereby increasing the time required for the device to heat the hot water and reducing energy and time consumption.

[0026] The present invention improves the user's water use experience by controlling the newly-heated cold water entering the device not to come into contact with the hot water when the user is using hot water, thereby avoiding changes in the temperature of the discharged hot water. At the same time, when the user's water consumption is large, the newly-heated cold water and hot water are allowed to flow and mix along different paths, thereby reducing the fluctuation range of the discharged hot water temperature, increasing the use range of the present invention, and further ensuring the user's water use experience.

[0027] The present invention changes the flow direction of the heat exchanger in the heat exchange tube by means of an electromagnetic four-way valve, thereby ensuring that no matter which direction the heat exchange tube heats the water flow, there is a temperature difference between the hot water in contact with the heat exchange tube, thereby maintaining the heating efficiency of the surrounding hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 is a cross-sectional view of the housing of the present invention;

[0030] Figure 3 It is a three-dimensional structural schematic diagram of the housing, the moving part and the thermal insulation board of the present invention;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the outer shell, the guide shell and the guide core of the present invention;

[0032] Figure 5 It is a three-dimensional structural schematic diagram of the moving part, temperature sensor and electric push rod of the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the first limit block, the second limit block and the magnetic member of the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the heat exchange tube, the flow guide shell and the flow guide core of the present invention;

[0035] Figure 8 An exploded view of the heat exchange tube, the flow guide shell and the flow guide core of the present invention;

[0036] Fig. 9 It is a schematic diagram of the three-dimensional structure of the housing, the first guide groove and the second guide groove of the present invention;

[0037] Fig.10 It is a separate display diagram of the conduit and the guide block of the present invention;

[0038] Fig.11 It is a schematic diagram of the three-dimensional structure of the guide shell, the guide core and the movable frame of the present invention.

[0039] The markings of the components in the accompanying drawings are as follows: 1: outer shell, 101: heating cavity, 102: heat storage cavity, 103: water inlet, 104: water outlet, 2: heat pump, 3: heat exchange tube, 4: moving part, 5: insulation board, 6: conduit, 7: solenoid valve, 8: temperature sensor, 9: electric push rod, 10: fixed block, 11: first spring telescopic rod, 12: first limit block, 13: second limit block, 14: magnetic part, 15: guide shell, 151: first guide groove, 152: second guide groove, 16: guide core, 17: guide block, 18: second spring telescopic rod, 19: moving frame, 20: electromagnetic four-way valve. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0041] Because the existing water heater only directly heats the surrounding hot water when insulating the hot water inside it, the hot water in other locations needs to gradually transfer the temperature through the hot water near the heating pipe in order to gradually increase the temperature. In the above process, there is a gradually decreasing temperature gradient from the heating pipe to the hot water farthest from the heating pipe, and the difference between each adjacent temperature gradient is small, which leads to low efficiency of the heating pipe in heating the surrounding hot water, and the temperature transfer efficiency between the hot water and the surrounding hot water with lower temperature is also low. Therefore, the compressor needs to be started for a long time to raise the hot water to a higher temperature as a whole, which will undoubtedly lead to high energy consumption and time consumption of the existing device when insulating.

[0042] like Figure 1-Figure 5 As shown, in order to solve the above problems, the present invention provides an air source heat pump combined water heater, comprising: a shell 1, in which a heating cavity 101, a heat storage cavity 102, a water inlet 103 and a water outlet 104 are arranged, a conduit 6 and a solenoid valve 7 are fixedly connected in the shell 1, and the heating cavity 101 and the heat storage cavity 102 are connected through the conduit 6 and the solenoid valve 7; a heat exchange tube 3 is installed in the heating cavity 101, and the heat exchange tube 3 is connected with the heat pump 2; a moving part 4 is installed in the heat storage cavity 102, and the moving part 4 is equipped with a heat insulation plate 5, and the heat insulation plate 5 divides the heat storage cavity 102 into two upper and lower cavities, and the conduit 6 and the solenoid valve 7 are respectively connected with different cavities of the heat storage cavity 102; a driving mechanism is installed in the heat storage cavity 102, and is used to drive the moving part 4 to drive the heat insulation plate 5 to move, so as to promote the water flow of the two cavities in the heat storage cavity 102 to pass through the heating cavity 101.

[0043] The above scheme aims to solve the problem that during the heating process of the water heater, the water near the heat exchange tube 3 and the water at other positions are heated unevenly, and the water transfer temperature rate is slow, resulting in high energy consumption and long consumption time, so as to save energy consumption and time consumption when the water heater increases the water temperature. An air source heat pump combined water heater of this embodiment includes parts such as a shell 1, a heat pump 2, a heat exchange tube 3, a moving part 4 and a driving mechanism. The shell 1 and the heat pump 2 are separately arranged to increase the flexibility of the device during installation, thereby increasing the scope of application of the device. A control terminal is arranged in the shell 1 or the heat pump 2. The control terminal is used to intelligently control the operation of the device and intelligently determine the timing of heating cold water or keeping hot water warm. The water inlet 103 and the water outlet 104 on the shell 1 are respectively located at the upper and lower sides of the shell 1, and the water inlet 103 and the water outlet 104 cannot be located at the heating cavity 101 at the same time, so as to prevent the cold water added at the water inlet 103 from being directly discharged outward through the water outlet 104 (or to prevent the cold water added at the water inlet 103 from being directly added through the heat exchange tube 3 and then discharged outward), and controllable valves are arranged in the water inlet 103 and the water outlet 104. The water outlet 104 is a manual valve for users to discharge water outward, and the water inlet 103 is a controllable valve electronically connected in series with the valve in the water outlet 104. When the water outlet 104 discharges water outward, the valve in the water inlet 103 automatically opens, and notifies the control terminal to control the solenoid valve 7 to close in time, so as to prevent cold water from rushing into hot water and mixing, resulting in users The water temperature used by personnel gradually decreases, and the conduit 6 and the solenoid valve 7 are also located on the upper and lower sides of the shell 1 respectively. The conduit 6 is used to connect the heating cavity 101 and the heat storage cavity 102, so that the hot water is discharged through the water outlet 104. The volume and cross-sectional area of ​​the heating cavity 101 are smaller than the volume and cross-sectional area of ​​the heat storage cavity 102, which is used to reduce the volume of water contacted by the heat exchange tube 3 at the same time, thereby reducing the speed of water temperature loss around the heat exchange tube 3, thereby increasing the efficiency of heating water in disguise. For the convenience of explanation, in this embodiment, the water outlet 104 and the conduit 6 are both arranged on the upper side, and the water inlet 103 and the solenoid valve 7 are arranged on the lower side. Without violating the above principles, the positions of the water inlet 103, the conduit 6, the water outlet 104 and the solenoid valve 7 can be changed according to specific needs.

[0044] The working process of the above scheme is as follows: when the control terminal determines that the water in the heat storage cavity 102 needs to be heated, taking the water on the upper side of the heat storage cavity 102 as an example (such as Figure 2As shown, at this time, the insulation plate 5 is located at the lower side of the heat storage cavity 102), the control terminal starts the heat pump 2, and the heat pump 2 heats the heat exchange tube 3 so that the heat exchange tube 3 heats the surrounding water. Then the control terminal controls the driving mechanism to drive the moving part 4 to move, so that the insulation plate 5 moves from bottom to top. The insulation plate 5 squeezes the water in the upper cavity so that the upper water flows downward through the conduit 6 and the heating cavity 101, thereby prompting the heat exchange tube 3 to heat the water flowing downward. At this time, because the water volume around the heat exchange tube 3 is small, the water around the heat exchange tube 3 is quickly heated, and the water in the heating cavity 101 gradually flows into the heat storage cavity through the solenoid valve 7. In the lower cavity of cavity 102, the lower cavity of the heat storage cavity 102 insulates the water therein. When the water in the upper cavity is discharged, the heat exchange tube 3 directly heats the water in the heating cavity 101. At this time, because the volume of the heating cavity 101 is small, the heating time is short. When the water in the heating cavity 101 is also heated to the same temperature, the control terminal turns off the heat pump 2, and drives the moving part 4 and the insulation plate 5 to move and reset through the driving mechanism, so that the hot water in the lower cavity of the heat storage cavity 102 flows back to the upper cavity of the heat storage cavity 102 along the order of the solenoid valve 7, the heating cavity 101 to the conduit 6, so that it can be used at any time.

[0045] When the user uses the hot water in the upper cavity of the heat storage cavity 102, the user opens the valve in the water outlet 104, the valve in the water inlet 103 opens automatically, and cold water rushes into the lower cavity of the heat storage cavity 102. The control terminal receives the signal and closes the solenoid valve 7 at the same time to prevent the cold water in the water inlet 103 from directly rushing into the heating cavity 101, causing the temperature of the hot water in the upper cavity of the heat storage cavity 102 and the heating cavity 101 to fluctuate, affecting the user's experience. After the cold water enters the lower cavity of the heat storage cavity 102, it squeezes the insulation board 5 and other components to move upward, and prompts the hot water in the upper cavity of the heat storage cavity 102 to be discharged outward through the conduit 6 and the water outlet 104.

[0046] When the user uses a large amount of hot water and the hot water consumption in the heat storage cavity 102 is large, the control terminal starts the heat pump 2 and slightly opens the solenoid valve 7 to allow the cold water in the lower side of the heat storage cavity 102 to slowly enter the heating cavity 101. At this time, due to the difference between the amount of cold water entering the lower cavity of the heat storage cavity 102 and the amount of cold water flowing out of the heat storage cavity 102 through the solenoid valve 7, the insulation board 5 still moves upward, but the upward movement speed of the insulation board 5 is reduced, and the cold water flows from the lower side of the heating cavity 101 to the upper side thereof, and is gradually heated by the heat exchange tube 3 while mixing with the surrounding hot water. The hot water in the heating cavity 101 is mixed again with the hot water flowing out of the upper cavity of the heat storage cavity 102 near the water outlet 104, thereby ensuring that the discharged hot water maintains a high temperature, and by mixing the heated cold water with the hot water, the fluctuation range of the discharged hot water temperature is reduced, and the sustainable discharge time of hot water is extended, further maintaining the user experience.

[0047] like Figure 5 As shown, further, the moving part 4 is specifically a scissor-type telescopic frame, and temperature sensors 8 are equidistantly installed thereon for measuring the water temperature in adjacent cavities.

[0048] In this embodiment, the moving part 4 can be specifically a scissors-type telescopic frame. In other embodiments, the moving part 4 can be replaced by other connecting parts with a larger stroke. Temperature sensors 8 are equidistantly installed on the moving part 4. By evenly distributing the temperature sensors 8 in adjacent cavities in the temperature storage cavity 102, the sensitivity of monitoring the liquid temperature in adjacent cavities in the temperature storage cavity 102 is ensured.

[0049] like Figure 5 and Figure 6 As shown, further, the driving mechanism includes: an electric push rod 9, which is installed on the side of the temperature storage cavity 102 close to the moving part 4, the telescopic end of the electric push rod 9 is fixedly connected to a fixed block 10, the fixed block 10 is fixedly connected to a first spring telescopic rod 11, and the telescopic end of the first spring telescopic rod 11 is fixedly connected to a first limit block 12; a second limit block 13, which is installed on the moving part 4, the second limit block 13 has an inclined protrusion, and the second limit block 13 is limited and cooperated with the first limit block 12 through the inclined protrusion.

[0050] The above scheme aims to propose a more specific driving mechanism, which can not only actively drive the moving part 4 to move, but also can push the moving part 4 and the insulation plate 5 to move freely by the water pressure when water is added to the lower cavity of the heat storage cavity 102 through the water inlet 103. The electric push rod 9 is electrically connected to the control terminal, so that the control terminal can control the moving part 4 to move through the electric push rod 9. When the telescopic end of the electric push rod 9 drives the first limit block 12 to move through the fixed block 10 and the first spring telescopic rod 11, if the moving part 4 is in the limit state and cannot move, that is, the second limit block 13 cannot move, the first limit block 12 is squeezed by the inclined protrusion of the second limit block 13 to slide toward the fixed block 10, and while compressing the telescopic end of the first spring telescopic rod 11, the first limit block 12 automatically releases the limit matching state with the second limit block 13. Subsequently, the telescopic end of the electric push rod 9 drives the first limit block 12 to move by itself through the components, and will not drive the second limit block 13 to move. Similarly, when the electric push rod 9 is not When the electric drive and the telescopic end of the electric drive remain in a stationary state, if the insulation board 5 is moved by the water pressure in the two adjacent cavities, the first limit block 12 is squeezed by the inclined protrusion on the second limit block 13, and the first spring telescopic rod 11 is also compressed to release the limiting cooperation state of the first limit block 12 and the second limit block 13. The above operation process ensures that the movable part 4 and the insulation board 5 can move under dual power such as electric drive and water pressure drive, and the switching principle is simple, which increases the convenience of the device for two situations. When it is necessary to restore the limiting cooperation between the first limit block 12 and the second limit block 13, the control terminal only needs to control the telescopic end of the electric push rod 9 to drive the first limit block 12 to move to the second limit block 13, and the reverse action resets the second limit block 13 and the first limit block 12.

[0051] like Figure 5 and Figure 6 As shown, further, the number of the inclined protrusions on the second limit block 13 is at least two, and the second limit block 13 is fixedly connected with a magnetic member 14 , and the magnetic member 14 is magnetically matched with the first limit block 12 .

[0052] In this solution, the first limit block 12 is made of a material attracted by magnetic force. By placing the magnetic part 14 between the two inclined protrusions, when the two inclined protrusions of the first limit block 12 and the second limit block 13 cooperate, the magnetic part 14 attracts the first limit block 12 through magnetic force, thereby improving the tightness of the connection between the magnetic part 14 and the first limit block 12, so as to increase the stability of the device.

[0053] like Figure 4 , Figure 7 and Figure 8As shown, further, it also includes a guide mechanism for guiding water flow, and the guide mechanism is arranged in the heating cavity 101, including: a guide shell 15, installed in the heating cavity 101, the guide shell 15 is provided with a first guide groove 151, the first guide groove 151 has the same rotation direction as the heat exchange tube 3, and the pitch of the first guide groove 151 is the same as the pitch of the heat exchange tube 3, and is used to guide adjacent water flows to always flow along the spiral path of the heat exchange tube 3; a guide core 16, installed in the heating cavity 101, the guide core 16 is provided with a spiral groove corresponding to the first guide groove 151, and the spiral groove and the first guide groove 151 cooperate to guide the water flow.

[0054] In the above scheme, because the guide shell 15 and the guide core 16 are installed in the heating cavity 101, and the spiral grooves on the first guide groove 151 and the guide core 16 correspond to the spiral part of the heat exchange tube 3, when the water flows from top to bottom or from bottom to top in the heating cavity 101, most of the water flows along the spiral path guided by the guide shell 15 and the guide core 16. At this time, because the spiral path coincides with the spiral part of the heat exchange tube 3, the water flow is always located near the heat exchange tube 3 during the flow process, further increasing the contact time between the heat exchange tube 3 and the surrounding water flow, thereby increasing the speed of the water when heated by the heat exchange tube 3, ensuring that the water flow quickly and evenly increases its own temperature during the flow process, thereby increasing the temperature transfer efficiency, and by making all hot water flow along the same path and be heated by the heat exchange tube 3, the heat exchange tube 3 in the traditional heater simultaneously heats all water flows by radiation, thereby increasing the temperature exchange efficiency, thereby increasing the utilization efficiency of the heat in the heat exchange tube 3, and reducing energy waste.

[0055] like Fig.10 As shown, further, the connection point between the conduit 6 and the heating cavity 101 and the first guide groove 151 is connected to each other, so as to reduce the resistance when the water flow is bent.

[0056] In the above scheme, the conduit 6 is installed in the shell 1 in an inclined state, thereby ensuring that the conduit 6 is in a mutually connected state with the first guide groove 151 in the initial state. After the water flows out from the conduit 6, it automatically rushes into the first guide groove 151, and flows downward along the spiral path guided by the first guide groove 151, so that the flow velocity loss of the water flow when it is guided is reduced, which increases the speed of the water flow in the heating cavity 101 in disguised form, and promotes the smoothness of the continuous flow and replacement of the water flow in the heating cavity 101.

[0057] like Fig. 9As shown, further, the water outlet 104 is located in the heating cavity 101, the conduit 6 is located on the side close to the water outlet 104, and the guide shell 15 is also provided with a second guide groove 152. The rotation direction of the second guide groove 152 is opposite to that of the first guide groove 151, which is used to promote adjacent water flows to flow along two different paths, thereby promoting the mixing of water flows. The second guide groove 152 is located between the conduit 6 and the water outlet 104.

[0058] In the above scheme, the water outlet 104 is located in the heating cavity 101, and the conduit 6 is located on the side close to the water outlet 104. Therefore, when the water consumption is large, the newly heated cold water and the hot water flowing out of the conduit 6 are dispersed and mixed with each other near the water outlet 104, which not only ensures that the heat exchange tube 3 only heats the cold water, but also prompts the newly heated cold water and the hot water flowing out of the conduit 6 to be evenly mixed before flowing out, thereby improving the uniformity of the temperature of the flowing hot water and improving the user experience. Because the rotation direction of the second guide groove 152 is opposite to that of the first guide groove 151, at this time, because the hot water sprayed out of the conduit 6 and the newly heated cold water are mutually offset and mixed, a part of them flows along the spiral groove on the guide core 16, and a part of them flows upward along the second guide groove 152. The two water flows have opposite rotation directions, which further increases the mixing efficiency between the hot water and the heated cold water.

[0059] like Figure 4 , Figure 8 and Fig.10 As shown, further, it also includes: a guide block 17, which is fixed in the first guide groove 151, and the guide block 17 is provided with at least two inclined surfaces, all of which are used to guide water flows in different directions, and the curvature of the inclined surface of the guide block 17 away from the conduit 6 is greater than the curvature of the inclined surface of the guide block 17 close to the conduit 6, which is used to guide water flows in different directions.

[0060] In the above scheme, because a plurality of guide blocks 17 are arranged in the first guide groove 151 to increase the continuity and effect of guiding the surrounding water flow, and the two inclined surfaces of the guide block 17 are respectively located at the upper and lower sides, the inclined surface on the side close to the conduit 6 along the path of the water flow is located at the upper side, and the inclined surface on the side away from the conduit 6 is located at the lower side, and the slopes of the two inclined surfaces are different, so that the guide block 17 guides the water flows coming from different directions in different directions. For the water flow flowing from top to bottom along the spiral path, since the water flow flows along this direction, When the water flows, the curvature of the guide block 17 passed by is small, so the guiding effect of the guide block 17 on the water flow is weak. When the water flows from bottom to top along the spiral path, the curvature of the inclined surface of the guide block 17 through which the water flows is large. The guide block 17 guides the water flow to the side close to the guide core 16, prompting the water flow to flow quickly to the guide core 16, making the flow direction of the cold water flowing from bottom to top and the hot water flowing out of the conduit 6 different, thereby reducing the consumption of water kinetic energy during the mixing process and promoting uniform mixing of the two.

[0061] like Fig.11 As shown, further, it also includes: a second spring telescopic rod 18, which is fixedly connected to the side of the guide core 16 close to the water outlet 104, and the telescopic end of the second spring telescopic rod 18 is fixedly connected to a movable frame 19, the movable frame 19 is slidably connected to the shell 1, and the movable frame 19 is fixedly connected to the conduit 6, and the conduit 6 is made of flexible material.

[0062] In the above scheme, the conduit 6 is set to a flexible material, which is convenient for replacing the outlet of the conduit 6. When the user drains water outward through the water outlet 104, the water flow pushes the movable frame 19 to move upward, and the telescopic end of the second spring telescopic rod 18 extends. During the movement of the movable frame 19, the conduit 6 is driven to bend upward, thereby prompting the water flowing out of the conduit 6 to flow directly upward along the second guide groove 152, reducing the impact of the water flowing out of the conduit 6 and the heated cold water, thereby reducing the kinetic energy loss of the water flow, and the hot water flowing out of the conduit 6 flows along the second guide groove 152, and the heated cold water is guided by the guide block 17 to flow upward along the guide core 16. There is still an effect of mutual interlacing and mixing between the two, so the uniformity of the mixing of the two water flows will not be affected. When the water outlet 104 stops draining water outward, the movable frame 19 is reset downward under the elastic force of the second spring telescopic rod 18, and drives the conduit 6 to reset to realign with the first guide groove 151.

[0063] like Figure 2 , Figure 3 and Figure 8 As shown, further, it also includes: an electromagnetic four-way valve 20, which is arranged at the connection point between the heat exchange tube 3 and the heat pump 2, and the electromagnetic four-way valve 20 is fixedly connected to the shell 1, and is used to change the flow direction of the heat exchange agent in the heat pump 2 in the heat exchange tube 3.

[0064] In the above scheme, the electromagnetic four-way valve 20 is electrically connected to the control terminal. The electromagnetic four-way valve 20 is used to change the flow direction of the heat exchanger flowing out of the heat pump 2 along the heat exchange tube 3. When the heat exchange tube 3 heats the liquid flowing from top to bottom, the electromagnetic four-way valve 20 controls the liquid in the heat exchange tube 3 to flow from bottom to top. When the heat exchange tube 3 heats the liquid flowing from bottom to top, the electromagnetic four-way valve 20 controls the liquid in the heat exchange tube 3 to flow from top to bottom, so as to ensure that there is always a temperature difference between the heat exchange tube 3 and the adjacent water, and the overall fluctuation of the temperature difference is small, thereby improving the efficiency of temperature exchange between the heat exchange tube 3 and the adjacent water.

[0065] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention 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 present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air source heat pump combined water heater, characterized in that: Included are: A shell (1), a heat pump (2) being fixedly connected to the upper side of the shell (1), a heating cavity (101), a heat storage cavity (102), a water inlet (103) and a water outlet (104) being arranged in the shell (1), a conduit (6) and a solenoid valve (7) being fixedly connected in the shell (1), the heating cavity (101) and the heat storage cavity (102) being connected via the conduit (6) and the solenoid valve (7); A heat exchange tube (3) is installed in the heating cavity (101), and the heat exchange tube (3) is connected to the heat pump (2); A moving part (4) is installed in the heat storage cavity (102); the moving part (4) is provided with a heat insulation plate (5); the heat insulation plate (5) separates the heat storage cavity (102) into two upper and lower cavities; the conduit (6) and the solenoid valve (7) are respectively connected to different cavities of the heat storage cavity (102); a driving mechanism, installed in the heat storage cavity (102), and used for driving the moving member (4) to drive the heat insulation plate (5) to move, so as to cause water flows in the two cavities in the heat storage cavity (102) to pass through the heating cavity (101); The driving mechanism comprises: An electric push rod (9) is mounted on a side of the temperature storage cavity (102) close to the moving part (4); the telescopic end of the electric push rod (9) is fixedly connected to a fixed block (10); the fixed block (10) is fixedly connected to a first spring telescopic rod (11); the telescopic end of the first spring telescopic rod (11) is fixedly connected to a first limit block (12); a second limit block (13) mounted on the moving member (4), the second limit block (13) having an inclined protrusion, the second limit block (13) being limitedly matched with the first limit block (12) via the inclined protrusion; The number of inclined protrusions on the second limit block (13) is at least two, the second limit block (13) is fixedly connected with a magnetic member (14), and the magnetic member (14) is magnetically matched with the first limit block (12); It also includes a flow guiding mechanism for guiding water flow, the flow guiding mechanism is arranged in the heating cavity (101), and the flow guiding mechanism includes: A flow guide shell (15) is installed in the heating cavity (101), the flow guide shell (15) is provided with a first flow guide groove (151), the first flow guide groove (151) has the same rotation direction as the heat exchange tube (3), and the pitch of the first flow guide groove (151) is the same as the pitch of the heat exchange tube (3), and is used to guide adjacent water flows to always flow along the spiral path of the heat exchange tube (3); a flow guide core (16) installed in the heating cavity (101), the flow guide core (16) being provided with a spiral groove corresponding to the first flow guide groove (151), the spiral groove and the first flow guide groove (151) cooperating to guide water flow; The water outlet (104) is located in the heating cavity (101); the conduit (6) is located on a side close to the water outlet (104); the guide shell (15) is further provided with a second guide groove (152); the rotation direction of the second guide groove (152) is opposite to that of the first guide groove (151), and is used to promote adjacent water flows to flow along two different paths, thereby promoting the mixing of the water flows; the second guide groove (152) is located between the conduit (6) and the water outlet (104); The working process is as follows: when the control terminal determines that the water in the heat storage cavity (102) needs to be heated, the control terminal starts the heat pump (2), and the heat pump (2) heats the heat exchange tube (3) so that the heat exchange tube (3) heats the surrounding water. Then, the control terminal controls the driving mechanism to drive the moving part (4) to move, so that the insulation plate (5) moves from bottom to top. The insulation plate (5) squeezes the water in the upper cavity so that the upper water flows downward through the conduit (6) and the heating cavity (101), thereby prompting the heat exchange tube (3) to heat the water flowing downward. At this time, because the water volume around the heat exchange tube (3) is small, the water around the heat exchange tube (3) is quickly heated, and the water in the heating cavity (101) gradually passes through the solenoid valve. (7) flows into the lower cavity of the heat storage cavity (102), and the lower cavity of the heat storage cavity (102) keeps the water therein warm. When the water in the upper cavity is discharged, the heat exchange tube (3) directly heats the water in the heating cavity (101). At this time, because the volume of the heating cavity (101) is small, the heating time is short. When the water in the heating cavity (101) is also heated to the same temperature, the control terminal turns off the heat pump (2) and drives the moving part (4) and the insulation plate (5) to move and reset through the driving mechanism, so that the hot water in the lower cavity of the heat storage cavity (102) flows back to the upper cavity of the heat storage cavity (102) along the order of the solenoid valve (7), the heating cavity (101) to the conduit (6), so that it can be used at any time; The driving mechanism can not only actively drive the moving part (4) to move, but also, when water is added to the lower cavity of the heat storage cavity (102) through the water inlet (103), the moving part (4) and the insulation plate (5) can be pushed to move freely by the water pressure; the electric push rod (9) is electrically connected to the control terminal, so that the control terminal can control the moving part (4) to move through the electric push rod (9); when the telescopic end of the electric push rod (9) drives the first limit block (12) to move through the fixed block (10) and the first spring telescopic rod (11), if the moving part (4) is in an extreme state and cannot move, that is, when the second limit block (13) cannot move, the first limit block (12) is squeezed by the inclined protrusion of the second limit block (13). The electric push rod (9) slides toward the fixed block (10), compressing the telescopic end of the first spring telescopic rod (11) while automatically releasing the first limit block (12) from the limit matching state with the second limit block (13). Subsequently, the telescopic end of the electric push rod (9) drives the first limit block (12) to move by itself through components, and does not drive the second limit block (13) to move. Similarly, when the electric push rod (9) is not powered and its telescopic end remains in a stationary state, if the insulation board (5) is moved by the water pressure in the two adjacent cavities, the first limit block (12) is squeezed by the inclined protrusion on the second limit block (13), similarly compressing the first spring telescopic rod (11) and releasing the limit matching state between the first limit block (12) and the second limit block (13).

2. The air source heat pump combined water heater according to claim 1, characterized in that: The movable member (4) is specifically a scissor-type telescopic frame, and temperature sensors (8) are equidistantly mounted on the movable member (4) for measuring the water temperature in adjacent cavities.

3. The air source heat pump combined water heater according to claim 1, characterized in that: The connecting point between the conduit (6) and the heating cavity (101) is connected to the first guide groove (151) to reduce the resistance of the water flow when it bends.

4. The air source heat pump combined water heater according to claim 3, characterized in that: Also included are: A guide block (17) is fixedly connected to the first guide groove (151), and the guide block (17) is provided with at least two inclined surfaces, all of which are used to guide water flows in different directions, and the curvature of the inclined surface of the guide block (17) on the side away from the conduit (6) is greater than the curvature of the inclined surface of the guide block (17) on the side close to the conduit (6), so as to guide water flows in different directions.

5. The air source heat pump combined water heater according to claim 4, characterized in that: Also included are: The second spring telescopic rod (18) is fixedly connected to a side of the guide core (16) close to the water outlet (104); the telescopic end of the second spring telescopic rod (18) is fixedly connected to a movable frame (19); the movable frame (19) is slidably connected to the housing (1); the movable frame (19) is fixedly connected to the conduit (6); and the conduit (6) is made of a flexible material.

6. The air source heat pump combined water heater according to claim 5, characterized in that: Also included are: An electromagnetic four-way valve (20) is arranged at the connection point between the heat exchange tube (3) and the heat pump (2); the electromagnetic four-way valve (20) is fixedly connected to the housing (1) and is used to change the flow direction of the heat exchange medium in the heat pump (2) flowing in the heat exchange tube (3).

Images