Integral heat pump water heater

Abstract

The application discloses an integrated heat pump water heater. The integrated heat pump water heater comprises a shell, a partition plate arranged in the shell, the partition plate divides the shell into a first installation cavity and a second installation cavity, the shell is provided with an air inlet and an air outlet communicating with the first installation cavity, and the partition plate is provided with a guide installation part. The inner container is provided with a water inlet pipe and a water outlet pipe, and is used for storing water to be heated. The refrigerating unit comprises a compressor, a condenser, a throttling device and an evaporator connected together. The centrifugal fan comprises a volute and a centrifugal fan blade, the volute is provided with an air inlet and an air outlet, the centrifugal fan blade is arranged in the volute, and the volute is provided with a positioning installation part. The centrifugal fan is quickly and accurately assembled in place, so that the assembly precision is improved and the product qualification rate is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to an integrated heat pump water heater. BACKGROUND

[0002] At present, a water heater is a household appliance commonly used in people's daily life. The water heater is generally divided into an electric water heater, a gas water heater and a heat pump water heater, and the heat pump water heater is widely used because of its high energy efficiency.

[0003] The heat pump water heater generally comprises a heat pump unit and a water tank, and the heat pump unit comprises a compressor, an evaporator and a fan, and the water tank generally comprises a tank shell, an inner container and a condenser. Chinese Patent No. CN 214665205 U discloses an air energy heat pump water heater, which is configured with an air inlet and an air outlet on the shell, and the shell is provided with an evaporator, a compressor and a fan. In the actual assembly process, for the centrifugal fan, on the one hand, it needs to be firmly and reliably installed and fixed, and on the other hand, it needs to be accurately connected with the air outlet on the shell. However, due to the influence of part installation error, the volute of the centrifugal fan is prone to misalignment with the air outlet, which causes low assembly precision and reduces the product qualification rate.

[0004] Therefore, how to design a heat pump water heater with improved assembly precision to improve the product qualification rate is a technical problem to be solved by the present application. SUMMARY

[0005] The present application provides an integrated heat pump water heater, which realizes quick and accurate assembly of the centrifugal fan in place, so as to improve the assembly precision and improve the product qualification rate.

[0006] To achieve the above technical purpose, the present application adopts the following technical scheme:

[0007] In one aspect, the present application provides an integrated heat pump water heater, comprising:

[0008] A shell is provided with a partition plate, which divides the shell into a first installation cavity and a second installation cavity, and the shell is provided with an air inlet and an air outlet communicating with the first installation cavity, and the partition plate is provided with a guide installation part;

[0009] An inner container is provided with a water inlet pipe and a water outlet pipe, and the inner container is used for storing water to be heated;

[0010] A refrigeration unit comprises a compressor, a condenser, a throttling device and an evaporator connected together;

[0011] The centrifugal fan comprises a volute and a centrifugal fan blade, the volute is provided with an air inlet and an air outlet, the centrifugal fan blade is arranged in the volute, and the volute is provided with a positioning mounting portion;

[0012] The inner container is arranged in the second mounting cavity, the condenser is arranged on the inner container and is used for heating water in the inner container, the compressor, the evaporator and the centrifugal fan are arranged on the partition plate in the first mounting cavity, the air inlet is arranged opposite to the evaporator, and the air outlet is connected with the air outlet; the guide mounting portion is inserted and matched with the positioning mounting portion, and the guide mounting portion is configured to guide the positioning mounting portion to be slidingly mounted on the guide mounting portion.

[0013] By arranging the positioning mounting portion on the volute of the centrifugal fan, the guide mounting portion is arranged on the partition plate correspondingly, the centrifugal fan is fixedly mounted on the partition plate through the cooperation of the positioning mounting portion and the guide mounting portion, the guide mounting portion can guide the positioning mounting portion during the mounting of the centrifugal fan, so that the positioning mounting portion can be slidingly and accurately inserted together, thereby ensuring that the centrifugal fan can be accurately mounted in place, and the air outlet of the centrifugal fan can be accurately aligned with the air outlet, so that the centrifugal fan can be quickly and accurately assembled in place, thereby improving the assembly precision and the product qualification rate.

[0014] In an embodiment of the present application, the casing further comprises a first shell and a second shell, the partition plate is arranged between the first shell and the second shell, and the first shell is provided with the air inlet and the air outlet.

[0015] In an embodiment of the present application, the bottom of the volute is provided with two positioning mounting portions, and the partition plate is provided with guide mounting portions corresponding to the positioning mounting portions.

[0016] In an embodiment of the present application, the guide mounting portion is a first positioning protrusion arranged on the partition plate, the positioning mounting portion is a first positioning groove arranged on the partition plate, and the first positioning protrusion is inserted into the corresponding first positioning groove.

[0017] In an embodiment of the present application, the two first positioning protrusions are arranged in a relative inclined and close manner, and the inner wall of the first positioning groove close to the outer side forms an inclined surface matched with the outer side wall of the first positioning protrusion.

[0018] In an embodiment of the present application, the guide mounting portion is a second positioning groove arranged on the partition plate, the positioning mounting portion is a second positioning protrusion arranged on the partition plate, and the second positioning protrusion is inserted into the corresponding second positioning groove.

[0019] In an embodiment of the present application, the volute comprises a first volute and a second volute, the first volute is provided with the air suction port, and the inner wall of the second volute is provided with a mounting groove, the first volute and the second volute are buckled together and form the air outlet.

[0020] The centrifugal fan blade comprises a motor and a fan blade provided on the shaft of the motor, the motor is arranged in the mounting groove, and the fan blade is located between the first volute and the second volute and covers the air suction port.

[0021] In an embodiment of the present application, the air suction port is arranged opposite to the mounting groove, the cross section of the mounting groove is circular, and the center line of the mounting groove is arranged in line with the center line of the air suction port.

[0022] In an embodiment of the present application, the second volute is provided with a protruding portion protruding outward, and the mounting groove is formed in the protruding portion.

[0023] In an embodiment of the present application, the water leakage prevention device comprises:

[0024] A first water pipe is provided with a first water inlet pipe head, a first connecting pipe head and a first water outlet pipe head, and a first connecting flow channel is further arranged in the first water pipe, the port one of the first connecting flow channel is communicated with the first water inlet pipe head, and the port two of the first connecting flow channel is communicated with the first water outlet pipe head.

[0025] A second water pipe is provided with a second water inlet pipe head, a second connecting pipe head and a second water outlet pipe head which are communicated with each other, the second water inlet pipe head is provided with a one-way valve, and the one-way valve is used to control the water flow to flow into the second water pipe from the second water inlet pipe head in one direction.

[0026] A pressure on-off valve is arranged in the first connecting pipe head and is used to open and close the port two of the first connecting flow channel according to the water pressure at the first connecting pipe head.

[0027] A connecting pipe is connected between the first connecting pipe head and the second connecting pipe head.

[0028] The first water outlet pipe head is connected with the water inlet pipe, and the second water inlet pipe head is connected with the water outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0030] Figure 1 Figure 1 is a structural schematic diagram of the heat pump unit of the present application;

[0031] Figure 2 Figure 2 is a partial structural schematic diagram of the heat pump unit of the present application;

[0032] Figure 3 Figure 3 is another partial structural schematic diagram of the heat pump unit of the present application;

[0033] Figure 4 Figure 4 is a structural schematic diagram of the centrifugal fan of the present application;

[0034] Figure 5 Figure 5 is an exploded view of the centrifugal fan of the present application;

[0035] Figure 6 Figure 6 is a structural schematic diagram of the heat pump unit of the present application;

[0036] Figure 7 Figure 7 is a structural schematic diagram of the water leakage prevention device of the present application;

[0037] Figure 8 Figure 8 is another structural schematic diagram of the water leakage prevention device of the present application;

[0038] Figure 9 Figure 9 is a sectional view along A-A direction of the water leakage prevention device of the present application; Figure 8

[0039] Figure 10 is a sectional view along B-B direction of the water leakage prevention device of the present application; Figure 10 Figure 8 Figure 11 is a sectional view along C-C direction of the water leakage prevention device of the present application;

[0040] Figure 11 Figure 9 Figure 12 is a partial enlarged schematic view of the C area of the water leakage prevention device of the present application;

[0041] Figure 12 Figure 13 is a structural schematic diagram of the first water pipe of the present application;

[0042] Figure 13 Figure 14 is a sectional view of the first water pipe of the present application;

[0043] Figure 14 Figure 15 is a structural schematic diagram of the second water pipe of the present application;

[0044] Figure 15 Figure 16 is a sectional view of the second water pipe of the present application;

[0045] ​​Figure 16 Structure diagram of the pressure on-off valve of the present application;

[0046] Figure 17 Exploded view of the pressure on-off valve of the present application;

[0047] Figure 18 Sectional view of the flexible sealing component of the present application. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0049] It should be noted that, in the description of the present application, the terms indicating the direction or position relationship such as “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like are based on the direction or position relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0050] As Figures 1-5 shown, the integrated heat pump water heater provided by the embodiment includes:

[0051] A shell 1 is provided with a partition plate 4, which divides the shell into a first installation cavity and a second installation cavity. The shell 1 is provided with an air inlet 1001 and an air outlet 1002 communicating with the first installation cavity. The partition plate is provided with a guide installation portion 41.

[0052] An inner container (not shown) is used to store water to be heated.

[0053] A refrigeration unit includes a compressor, a condenser, a throttling device and an evaporator 2 connected together.

[0054] A centrifugal fan 3 includes a volute 31 and a centrifugal fan blade 32. The volute 31 is provided with an air suction port 3001 and an air exhaust port 3002. The centrifugal fan blade 32 is arranged in the volute 31. The volute 31 is provided with a positioning installation portion 311.

[0055] The inner container is arranged in the second mounting cavity, the condenser is arranged on the inner container and is used for heating water in the inner container, the compressor, the evaporator and the centrifugal fan are located in the first mounting cavity and are arranged on the partition plate, the air inlet 3001 is arranged opposite the evaporator 2, and the air outlet 3002 is connected with the air outlet 1002; the guide mounting part 41 is inserted and matched with the positioning mounting part 311, and the guide mounting part 41 is configured to guide the positioning mounting part 311 to be slidably inserted into the guide mounting part 41.

[0056] Specifically, the integrated heat pump water heater installs relevant components in the shell 1, wherein the compressor, the evaporator and the centrifugal fan installed in the first mounting cavity form a heat pump unit, and the inner container in the second mounting cavity is heated by the condenser.

[0057] During assembly, the centrifugal fan 3 is assembled to the partition plate 4, and the centrifugal fan 3 is connected with the guide mounting part 41 on the partition plate 4 through the positioning mounting part 311 arranged on the volute 31. On the one hand, the guide mounting part 41 can meet the requirements of connection and positioning fixation with the positioning mounting part 311, and on the other hand, the guide mounting part 41 can guide the positioning mounting part 311 to be accurately assembled in place, so as to improve the assembly precision.

[0058] In this way, after the centrifugal fan 3 is assembled on the partition plate 4, the positioning mounting part 311 can cooperate with the guide mounting part 41 to improve the assembly position accuracy of the centrifugal fan 3, so as to facilitate the on-site rapid and accurate installation of the assembly personnel, and after the centrifugal fan 3 is assembled in place, the air outlet 3002 of the centrifugal fan 3 can be more accurately aligned with the air outlet 1002.

[0059] By arranging the positioning mounting part on the volute of the centrifugal fan, the guide mounting part is correspondingly arranged on the partition plate, the centrifugal fan is fixedly installed on the partition plate through cooperation of the positioning mounting part and the guide mounting part, and for the positioning mounting part and the guide mounting part, the guide mounting part can guide the positioning mounting part during installation of the centrifugal fan, so that the positioning mounting part can slide along the guide mounting part and be accurately inserted together. In this way, on the one hand, the centrifugal fan can be accurately installed in place, and on the other hand, the air outlet of the centrifugal fan can be accurately aligned with the air outlet, so that the centrifugal fan can be quickly and accurately assembled in place, so as to improve the assembly precision and improve the product qualification rate.

[0060] In an embodiment of the present application, the shell further includes a first shell 1005 and a second shell 1006, the partition plate is arranged between the first shell and the second shell, and the air inlet and the air outlet are arranged on the first shell.

[0061] Specifically, in order to facilitate the assembly of the integrated structure, the casing is designed in a split body, and the first casing 1005 and the second casing 1006 are connected together through the partition plate.

[0062] In an embodiment of the present application, the bottom of the volute 31 is provided with two positioning mounting portions 311, and the partition plate 4 is provided with guiding mounting portions 41 corresponding to the positioning mounting portions 311.

[0063] Specifically, in order to improve the connection reliability, two positioning mounting portions 311 are arranged at the bottom of the volute 31, which can provide good support to the volute 31 as a whole; in addition, during the assembly process, the corresponding guiding mounting portions 41 arranged on the partition plate 4 can guide and position the positioning mounting portions 311 on the volute 31, so as to more accurately improve the assembly precision.

[0064] In some embodiments, after the positioning mounting portions 311 and the guiding mounting portions 41 are inserted in place, in order to more firmly and reliably fasten the volute 31 and the partition plate 4, the volute 31 is provided with mounting holes 312 penetrating the positioning mounting portions 311, and the guiding mounting portions 41 are provided with threaded holes (not shown), and the screws are inserted through the mounting holes 312 and screwed into the threaded holes.

[0065] Specifically, during the actual assembly process, the assembler first pre-assembles the centrifugal fan 3 on the partition plate 4 through the cooperation of the positioning mounting portions 311 and the guiding mounting portions 41. Then, the screws are inserted through the mounting holes 312 from one side of the volute 31 of the centrifugal fan 3 and screwed into the threaded holes.

[0066] In this way, the centrifugal fan 3 and the partition plate 4 are further fastened by the screws, which is more conducive to improving the connection reliability between the two, thereby reducing the phenomenon of the centrifugal fan 3 falling off due to fixing failure. At the same time, for the centrifugal fan 3 that has been adjusted to the right position, it can always meet the requirement of good cooperation between the air outlet 3002 and the air outlet 1002.

[0067] In an embodiment of the present application, the specific performance entity of the positioning mounting portions 311 and the guiding mounting portions 41 can adopt various structural forms, which are illustrated below with reference to the accompanying drawings.

[0068] The guiding mounting portions 41 are first positioning protrusions arranged on the partition plate 4, and the positioning mounting portions 311 are first positioning grooves arranged on the partition plate 4, and the first positioning protrusions are inserted into the corresponding first positioning grooves.

[0069] Specifically, the guide mounting portion 41 is inserted into the positioning mounting portion 311 to complete the plug-in fit of the two. During assembly, the volute 31 is matched with the first positioning protrusions below through the first positioning recesses arranged on both sides of the bottom of the volute 31. The first positioning protrusions are inserted into the corresponding first positioning recesses, and the first positioning protrusions and the first positioning recesses can guide the pre-assembly of the volute 31 to the right position during the insertion of the first positioning protrusions into the first positioning recesses.

[0070] In an embodiment, the two first positioning protrusions are arranged relatively close to each other in an inclined manner.

[0071] Specifically, the two first positioning protrusions are arranged in an inclined manner towards the middle position of the two, and the first positioning protrusions arranged in an inclined manner have a self-positioning guiding function, so that the volute 31 has higher accuracy after being assembled to the right position.

[0072] In the embodiment, the included angle between the outer side walls of the two first positioning protrusions is 30-60 degrees. In this way, the two first positioning protrusions can better pre-position and center the volute 31 during assembly, which is more conducive to improving the assembly efficiency and accuracy.

[0073] In some embodiments, the inner wall of the first positioning recess close to the outer side forms an inclined surface matched with the outer side wall of the first positioning protrusion.

[0074] Specifically, for the volute 31, the first positioning recess forms an inclined surface matched with the first positioning protrusion, and the inclined surface and the outer side wall of the first positioning protrusion are matched with each other to better play the guiding and positioning roles.

[0075] In another embodiment, the cross-sectional area of the first positioning protrusion gradually decreases in a direction away from the partition plate 4, the first positioning recess forms a horn structure, and the inner profile of the first positioning recess is matched with the outer profile of the first positioning protrusion.

[0076] Specifically, the first positioning recess forms a trapezoidal slot structure, and the size of the top of the first positioning protrusion is smaller, which is more conducive to the assembly personnel to easily align and insert the first positioning protrusion into the first positioning recess. The size of the bottom of the first positioning protrusion is larger, so that the first positioning protrusion and the first positioning recess can be more matched and assembled together after the volute 31 is assembled to the right position.

[0077] In order to reduce the influence of part processing and installation errors, a gap is formed between the first positioning protrusion and the first positioning groove. After the volute 31 is assembled by the first positioning protrusion and the first positioning groove, fine adjustment can be made according to the requirement of the centering connection of the air outlet 3002 of the volute and the air outlet 1002, so that the air outlet 3002 and the air outlet 1002 can be centered and accurately connected. The first positioning groove is formed in a trapezoidal structure, and the gap is 5%-10% of the length of the upper base of the trapezoidal groove. Through this design, the volute 31 has the freedom to adjust in this direction when it is fixed, so as to solve the problem of the air outlet 3002 of the volute 31 and the air outlet 1002 of the casing 1 not being centered.

[0078] In another embodiment of the present application, the guide mounting portion 41 is a second positioning groove provided on the partition plate 4, and the positioning mounting portion 311 is a second positioning protrusion provided on the partition plate 4, which is inserted into the corresponding second positioning groove.

[0079] Specifically, the volute 31 can be configured with a protruding second positioning protrusion which is inserted into the second positioning groove provided on the partition plate 4 to achieve pre-assembly positioning.

[0080] In an embodiment of the present application, the volute 31 is provided with a flange structure 313 at the end away from the positioning mounting portion 311, which is lapped on the evaporator 2, and the evaporator 2 is located between the flange structure 313 and the partition plate 4.

[0081] Specifically, in addition to being assembled with the partition plate 4, the top of the volute 31 is also assembled and connected with the evaporator 2 through the extended flange structure 313 on one side. The flange structure 313 is lapped on the evaporator 2 to support the top of the volute 31 through the evaporator 2.

[0082] More importantly, the volute 31 abuts against the evaporator 2 and covers the leeward surface of the evaporator 2, so that the negative pressure generated by the air inlet 3001 of the volute 31 acts on the entire leeward surface of the evaporator 2, fully utilizing the heat exchange area of the evaporator 2 for heat exchange with air.

[0083] In an embodiment, an extension plate 314 can be provided on each side and the bottom of the volute 31, which extends towards the corresponding side or bottom of the evaporator 2 and abuts against the evaporator 2. The volute 31 and the evaporator 2 are spaced apart by the extension plate 314 and a negative pressure cavity is formed therebetween. After the centrifugal fan blade 32 rotates, a negative pressure is formed in the negative pressure cavity, and under the action of the negative pressure formed in the negative pressure cavity, the entire surface of the evaporator 2 can uniformly take in air from the air inlet, ensuring that the evaporator 2 can uniformly exchange heat and thereby improving the heat exchange efficiency.

[0084] In some embodiments, the centrifugal fan 3 comprises a volute 31 and a centrifugal fan blade 32, the volute 31 is provided with an air inlet 3001 and an air outlet 1002, the centrifugal fan blade 32 is arranged in the volute 31 and covers the air inlet 3001. Figure 4 and Figure 5 As shown in the drawings, for the volute 31, it needs to meet the requirements of installing the centrifugal fan blade 32, and the centrifugal fan blade 32 usually comprises a motor 321 and a fan blade 322 arranged on the shaft of the motor 321, in order to meet the requirement of installing the motor 321 built-in the volute 31, the volute 31 comprises a first volute 3101 and a second volute 3102, the first volute 3101 is provided with the air inlet 3001, the inner wall of the second volute 3102 is provided with a mounting groove 3003, the first volute 3101 and the second volute 3102 are buckled together and form the air outlet 1002; the motor 321 is arranged in the mounting groove 3003, and the fan blade 322 is located between the first volute 3101 and the second volute 3102 and covers the air inlet 3001.

[0085] Specifically, by arranging the mounting groove 3003 in the second volute 3102, the motor 321 is built-in the inner wall of the volute 31, so that the motor 321 can be installed without additional support. By using the mounting groove 3003 to install the motor 321, on the one hand, it can reduce the increase of manufacturing cost caused by adding support, on the other hand, by building the motor 321 in the volute 31, the overall volume of the centrifugal fan 3 can be effectively reduced.

[0086] In some embodiments, the air inlet 3001 is arranged opposite to the mounting groove 3003, the cross section of the mounting groove 3003 is circular, and the center line of the mounting groove 3003 is arranged in line with the center line of the air inlet 3001.

[0087] Specifically, for the mounting groove 3003, it is arranged opposite to the air inlet 3001, so that the suction force generated by the fan blade 322 can maximize the use of the opening of the air inlet 3001 to achieve air suction, thereby improving the air supply capacity.

[0088] In another embodiment, the second volute 3102 is provided with a protruding portion 3004 protruding outward, and the mounting groove 3003 is formed in the protruding portion 3004.

[0089] Specifically, by forming the protruding portion 3004 on the second volute 3102, the mounting groove 3003 is formed in the inner wall of the second volute 3102 by using the protruding portion 3004 to meet the requirement of building the motor 321 in the volute 31. At the same time, by forming the mounting groove 3003 in the protruding portion 3004, the influence of installing the motor 321 on the rotation of the fan blade 322 can be reduced.

[0090] In an embodiment, the first reinforcing rib 3005 is arranged on the bottom surface of the slot opposite to the motor 321, and the first reinforcing rib 3005 can enhance the structural strength of the mounting groove 3003 on the inner wall of the second volute 3102 to meet the mounting requirements of the motor 321.

[0091] In another embodiment, a plurality of second reinforcing ribs 3006 are arranged on the outer surface of the second volute 3102 around the protruding portion 3004. By arranging a plurality of second reinforcing ribs 3006 on the outer surface of the second volute 3102, the overall structural strength of the second volute 3102 can be enhanced to support the support force required when the motor 321 operates in the second volute 3102.

[0092] In order to further enhance the overall structural strength of the second volute 3102, the outer surface of the second volute 3102 is provided with an outwardly protruding reinforcing ring 3007 around the protruding portion 3004, and the second reinforcing ribs 3006 are arranged alternately with the reinforcing ring 3007. The reinforcing ring 3007 and the second reinforcing ribs 3006 cooperate to increase the structural strength of the circumference of the protruding portion 3004. According to requirements, a plurality of reinforcing rings 3007 are arranged on the outer surface of the second volute 3102 around the protruding portion 3004.

[0093] In other embodiments, since the motor 321 is built in the volute 31, in order to facilitate the connection of the power supply line of the motor 321 with the external control panel, a wire hole 3008 is further arranged on the protruding portion 3004, and the power supply line of the motor 321 passes through the wire hole 3008. In order to facilitate the layout of the wire, the outer surface of the second volute 3102 is further provided with a hook 3009 for positioning the power supply line of the motor 321, and the power supply line of the motor 321 is output from the inside of the volute 31 via the wire hole 3008 and hung on the hook 3009 to facilitate the installation of the connection wire.

[0094] In some embodiments, in order to firmly and reliably mount and fix the motor 321, the side wall of the mounting groove 3003 is provided with a stepped surface (not labeled), and the stepped surface is provided with a fixing hole, and the outer circumference of the motor 321 is provided with an outwardly extending connecting arm 323, and the connecting arm 323 is fixed on the fixing hole by a screw.

[0095] Specifically, the end portion of the motor 321 is inserted into the mounting groove 3003, and the connecting arm 323 extending outwardly from the outer circumference of the motor 321 is fixed and connected with the fixing hole on the stepped surface by a bolt, so as to ensure that the motor 321 can be firmly fixed on the second volute 3102.

[0096] Embodiment three, as Figures 6-18As shown, in an embodiment of the present application, the casing 1 is provided with an inner container, and the inner container is provided with a water inlet pipe 1003 and a water outlet pipe 1004. The inner container is used to store water to be heated.

[0097] In order to improve the water leakage prevention performance of the inner container, the split type heat pump water heater further comprises a water leakage prevention device 3000, which comprises:

[0098] A first water pipe 100 is provided with a first water inlet pipe head 101, a first connecting pipe head 102 and a first water outlet pipe head 103. The first water pipe 100 is further provided with a first connecting flow channel 104. The port one of the first connecting flow channel 104 is connected to the first water inlet pipe head 101, and the port two of the first connecting flow channel 104 is connected to the first water outlet pipe head 103.

[0099] A second water pipe 200 is provided with a second water inlet pipe head 201, a second connecting pipe head 202 and a second water outlet pipe head 203, which are connected to each other. The second water inlet pipe head 201 is provided with a one-way valve 208, which is used to control the water flow to flow from the second water inlet pipe head 201 to the second water pipe 200 in one direction.

[0100] A pressure on-off valve 300 is arranged in the first connecting pipe head 102 and is used to open and close the port two of the first connecting flow channel 104 according to the water pressure at the first connecting pipe head 102.

[0101] A connecting pipe 400 is connected between the first connecting pipe head 102 and the second connecting pipe head 202.

[0102] Specifically, the inner container is provided with a water inlet pipe 1003 and a water outlet pipe 1004. The water leakage prevention device 3000 mainly comprises a first water pipe 100, a second water pipe 200, a pressure on-off valve 300 and a connecting pipe 400.

[0103] The first water inlet pipe head 101 of the first water pipe 100 is used to be connected with a water supply pipe outside to introduce tap water from a municipal pipe network. The first water outlet pipe head 103 of the first water pipe 100 is connected with the water inlet pipe 1003 of the inner container in a user's home, so as to deliver the tap water to the inner container.

[0104] The second water inlet pipe head 201 of the second water pipe 200 is used to be connected with the water outlet pipe 1004 of the inner container, so as to output the water treated by the inner container. The second water outlet pipe head 203 of the second water pipe 200 is connected with a water terminal in the user's home, so as to realize the final output of water.

[0105] The first water pipe 100 and the second water pipe 200 are connected through the connecting pipe 400, so that the first connecting pipe head and the second connecting pipe head are connected to each other.

[0106] For the pressure on-off valve 300 in the first connecting pipe head, it can be according to the water pressure in the first connecting pipe head and the generated pressure between the port two of the first connecting flow channel 104 to make corresponding action, in order to achieve the purpose of preventing water leakage.

[0107] In the process of using water by the user through the water terminal, at this time the second water pipe 200 is connected to the water terminal through the second water outlet pipe to output water upward, at this time the water pressure in the second water pipe 200 is lower than the water pressure of the first water inlet pipe head 101, at the same time, the first connecting pipe head is communicated with the second connecting pipe head through the connecting pipe 400, so that the water pressure of the first connecting pipe head is also reduced. The water introduced from the first water inlet pipe head 101 is output through the pressure on-off valve 300 of the port two of the first connecting flow channel 104 and finally flows into the inner container through the first water outlet pipe head 103.

[0108] And after the user closes the water terminal, the water pressure of the external water supply pipe is conducted to the second water pipe 200, and the water pressure of the first connecting pipe head gradually increases and finally is the same as the water pressure in the first water inlet pipe head 101, at this time the pressure on-off valve 300 will automatically reset to close the port two of the first connecting flow channel 104.

[0109] At this time, if the inner container itself is broken and leaks, because the second water inlet pipe head 201 of the second pipe body is provided with the one-way valve, the water terminal leaks, which will not cause the change of the water pressure in the second pipe body, so that the pressure on-off valve 300 is always in the state of closing the port two of the first connecting flow channel 104, finally, in the case of the inner container being damaged, the tap water will not be input into the inner container to cause serious leakage.

[0110] By configuring the pressure on-off valve in the first water pipe, the pressure on-off valve is completely built-in in the first water pipe, the first water pipe is connected with the water supply pipe (tap water pipe) in the user's home through the first water inlet pipe head, the first water pipe and the second water pipe are respectively installed on the inner container in the user's home, in the use state, the water introduced by the first water pipe is output from the second water pipe after being treated by the inner container, at this time, since the connecting pipe connects the first connecting pipe head and the second connecting pipe head, the water pressure in the first connecting pipe head is lower than that in the first water inlet pipe head, at this time, the pressure on-off valve opens the second port of the first connecting flow channel, so that the first water inlet pipe head and the first water outlet pipe head are connected to realize water supply. While the inner container is in the water-off state, the water pressures in the first water pipe and the second water pipe gradually become the same, so that the water pressures in the first water inlet pipe head and the first connecting pipe head reach the balance, at this time, the pressure on-off valve is automatically reset and closes the second port of the first connecting flow channel; in the case of water leakage in the inner container, since the second water inlet pipe head is provided with a one-way valve, the water pressures in the first water inlet pipe head and the first connecting pipe head still maintain the balance state, thereby ensuring that the water supply pipe cannot output water from the first water pipe, and realizing the reduction of leakage accidents to improve the use reliability of the electric appliance.

[0111] In some embodiments, for the pressure on-off valve 300, it mainly relies on the water pressure difference between the first water inlet pipe head 101 and the first connecting pipe head to realize mechanical on-off control.

[0112] To this end, the pressure on-off valve 300 can include a spring 301 and a flexible sealing part 302, the flexible sealing part 302 is arranged in the first connecting pipe head 102 and used for opening and closing the second port of the first connecting flow channel 104, and the spring 301 is arranged in the first connecting pipe head 102 and used for applying elastic force to the flexible sealing part 302 in the direction of the second port of the first connecting flow channel 104.

[0113] Specifically, the flexible sealing part 302 is arranged opposite to the second port of the first connecting flow channel 104 and used for plugging the second port of the first connecting flow channel 104. The flexible sealing part 302 is acted on by the water pressures in different pipe heads on its two sides in the first connecting pipe head, thereby realizing deformation according to the pressure difference, and further opening and closing the second port of the first connecting flow channel 104.

[0114] In the process that the user uses water through the water terminal, the water pressure in the first connecting pipe head decreases, and under the action of the water pressure at the second port of the first connecting flow channel 104, the flexible sealing part 302 deforms and further opens the second port of the first connecting flow channel 104, the water entering the first water pipe 100 from the first water inlet pipe head 101 is output from the second port of the first connecting flow channel 104 and finally flows into the inner container from the first water outlet pipe head 103.

[0115] When the user closes the water terminal to stop water, the water pressure in the first connecting pipe head gradually rises and gradually offsets the water pressure generated by the second port of the first connecting flow channel 104, and under the action of the spring 301, the flexible sealing part 302 deforms towards the second port of the first connecting flow channel 104 and finally seals the second port of the first connecting flow channel 104.

[0116] In some embodiments, in order to facilitate the installation of the flexible sealing part 302, the flexible sealing part 302 is formed with a sealing part 3021, an elastic deformation part 3022, and a mounting fixed part 3023, the elastic deformation part 3022 is connected between the sealing part 3021 and the mounting fixed part 3023, the sealing part 3021 is arranged opposite to the second port of the first connecting flow channel 104, and the mounting fixed part 3023 is arranged on the inner wall of the first connecting pipe head 102.

[0117] Specifically, the sealing part 3021 of the flexible sealing part 302 is used to seal the second port of the first connecting flow channel 104, the elastic deformation part 3022 is used to meet the requirement that the sealing part 3021 can open and close the second port of the first connecting flow channel 104 under different water pressures, and the mounting fixed part 3023 is used to be mounted in the first connecting pipe head.

[0118] In some embodiments, the pressure on-off valve 300 further comprises a mounting support 303, the mounting support 303 is arranged in the first connecting pipe head, the spring 301 is arranged between the mounting support 303 and the sealing part 3021, and the spring 301 is used to apply a spring force to the sealing part 3021 towards the second port of the first connecting flow channel 104.

[0119] Specifically, in order to facilitate the installation of the spring 301 in the first connecting pipe head, the mounting support 303 can be arranged in the first connecting pipe head by means of threaded connection or interference fit, and the mounting support 303 is used to support the spring 301, so that the spring 301 can provide an effective spring force to the sealing part 3021.

[0120] Specifically, in order to facilitate the installation of the spring 301 in the first connecting pipe head, the mounting support 303 can be arranged in the first connecting pipe head by means of threaded connection or interference fit, and the mounting support 303 is used to support the spring 301, so that the spring 301 can provide an effective spring force to the sealing part 3021.

[0121] Specifically, during assembly, the outer sleeve 3031 is installed in the first connecting pipe head by means of threaded connection, and since the outer sleeve 3031 and the inner sleeve 3032 are connected to each other, the inner sleeve 3032 can be used to support the spring 301.

[0122] The outer sleeve 3031 and the inner sleeve 3032 can be connected by a connecting rod to suspend the inner sleeve 3032 in the outer sleeve 3031, thereby forming the water flow channel 3033.

[0123] The water flow channel 3033 can ensure that the water pressure in the connecting pipe 400 is directly transmitted to the flexible sealing part 302, thereby ensuring that the water flow is smooth and that the water pressure can be accurately transmitted.

[0124] In some embodiments, in order to fixedly install the flexible sealing part 302, the first water pipe 100 is provided with a mounting ring 105, and the mounting and fixing part 3023 is clamped between the mounting ring 105 and the outer sleeve 3031.

[0125] Specifically, the mounting ring 105 is arranged on the inner wall of the first water pipe 100 on the side of the first connecting flow channel 104, and cooperates with the outer sleeve 3031 to fix the flexible sealing part 302.

[0126] In the assembly process, the flexible sealing part 302 is placed into the first connecting pipe head and abuts against the mounting ring 105, and then the outer sleeve 3031 is installed into the first connecting pipe head. After the outer sleeve 3031 is installed in place, the mounting and fixing part 3023 is clamped between the mounting ring 105 and the outer sleeve 3031, so as to achieve firm and fixed installation of the flexible sealing part 302.

[0127] In some embodiments, the inner sleeve 3032 is further provided with an adjusting part 304, which is threadedly connected in the inner sleeve 3032 and abuts against the spring 301.

[0128] Specifically, there is a certain difference in water pressure of water supply pipe network in different regions. Therefore, it is necessary to adjust the elastic force of the spring 301 on the flexible sealing part 302 according to the local water pressure, so as to ensure that the flexible sealing part 302 can play a good sealing role on the first connecting flow channel 104.

[0129] In actual use, before the connecting pipe 400 is connected between the first water pipe 100 and the second water pipe 200, the operator can adjust the adjusting part 304 to change the deformation amount of the spring 301 in the initial state during installation in the user's home, thereby meeting the water pressure requirements of the local water supply pipe network. The adjusting part 304 can preferably be a threaded part such as a bolt.

[0130] After adjusting the initial deformation amount of the spring 301, the connecting pipe 400 can be connected between the first water pipe 100 and the second water pipe 200.

[0131] In another embodiment, in order to facilitate the user to directly operate the waterway switch of the water leakage prevention device, the first auxiliary joint 106 is arranged on the first water pipe 100, the first auxiliary joint 106 is provided with the first partition plate 107, the first partition plate 107 is provided with the first water inlet (not marked) and the first water outlet (not marked), and the port two of the first connecting flow channel 104, the first water inlet, the first water outlet and the first water outlet pipe head 103 are sequentially connected.

[0132] The first auxiliary joint 106 is provided with the first switch valve 108, the first switch valve 108 is arranged opposite to the first partition plate 107 and is used for switching the first water inlet and / or the first water outlet.

[0133] Specifically, in actual use, when the user needs to completely close the water leakage prevention device, the first switch valve 108 can be operated to switch the first water inlet and / or the first water outlet to actively control the flow path between the first water inlet pipe head 101 and the first water outlet pipe head 103, and then the water leakage prevention device can be completely closed according to the requirement, thereby further improving the use reliability.

[0134] The specific structure of the first switch valve 108 can adopt the valve core structure in a conventional water valve, which is not limited and described here.

[0135] In another embodiment, the second water pipe 200 is further provided with the second connecting flow channel 204, the port one of the second connecting flow channel 204 is communicated with the second water inlet pipe head 201, and the port two of the second connecting flow channel 204 is respectively communicated with the second connecting pipe head 202 and the second water outlet pipe head 203.

[0136] Specifically, in order to meet the requirement of supplying water to the second water outlet pipe head 203 and the second connecting pipe head, the second connecting flow channel 204 is arranged in the second water pipe 200 to realize the distribution of water flow.

[0137] Similarly, in order to completely close the second water pipe 200, the second auxiliary joint 205 is arranged on the second water pipe 200, the second auxiliary joint 205 is provided with the second partition plate 206, the first partition plate 107 is provided with the second water inlet and the second water outlet, the port two of the second connecting flow channel 204 is the second water inlet, the second water outlet is respectively communicated with the second water outlet pipe head 203 and the second connecting pipe head, and the second auxiliary joint 205 is provided with the second switch valve 207, the second switch valve 207 is arranged opposite to the second partition plate 206 and is used for switching the second water inlet and / or the second water outlet.

[0138] Specifically, in actual use, when the user needs to completely close the second water pipe 200, the second switch valve 207 can be operated to open and close the second water inlet and / or the second water outlet to actively control the flow path between the second water inlet pipe head 201 and the second water outlet pipe head 203 and the second connecting pipe head, thereby completely closing the second water pipe as needed, thereby further improving the use reliability.

[0139] The specific structure of the second switch valve 207 can adopt the valve core structure in a conventional water valve, which is not limited or described here.

[0140] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified or some technical features can be replaced by equivalents for ordinary skilled in the art; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. An integrated heat pump water heater, characterized in that, include: The housing has a partition that divides it into a first mounting cavity and a second mounting cavity. The housing has an air inlet and an air outlet that communicate with the first mounting cavity. The partition has a guide mounting part. The inner tank is equipped with an inlet pipe and an outlet pipe, and the inner tank is used to store water to be heated. A refrigeration unit, comprising a compressor, a condenser, a throttling device, and an evaporator connected together; A centrifugal fan, comprising a volute and centrifugal blades, wherein the volute is provided with an air inlet and an air outlet, the centrifugal blades are disposed in the volute, and the volute is provided with a positioning and mounting part; The inner liner is disposed in the second mounting cavity, the condenser is disposed on the inner liner and used to heat the water in the inner liner, the compressor, the evaporator and the centrifugal fan are located in the first mounting cavity and disposed on the partition, the air intake is arranged opposite to the evaporator, and the air exhaust is connected to the air outlet; the guide mounting part and the positioning mounting part are inserted into each other, and the guide mounting part is configured to guide the positioning mounting part to slide into the guide mounting part; The bottom of the volute is provided with two positioning mounting parts, and the partition is provided with a guide mounting part corresponding to the positioning mounting part; the two positioning mounting parts are arranged at an angle to each other and form an inclined surface that matches the positioning mounting part. The guide mounting part is a first positioning protrusion provided on the partition plate, and the positioning mounting part is a first positioning groove provided on the partition plate. The first positioning protrusion is inserted into the corresponding first positioning groove. The two first positioning protrusions are arranged at an incline and close to each other. The inner wall of the first positioning groove near the outer side forms an inclined surface that matches the outer wall of the first positioning protrusion. The guide mounting part is a second positioning groove provided on the partition plate, and the positioning mounting part is a second positioning protrusion provided on the partition plate. The second positioning protrusion is inserted into the corresponding second positioning groove.

2. The integrated heat pump water heater according to claim 1, characterized in that, The housing also includes a first housing and a second housing, with the partition disposed between the first housing and the second housing, and the first housing having the air inlet and the air outlet.

3. The integrated heat pump water heater according to claim 1, characterized in that, The volute includes a first volute and a second volute. The first volute is provided with an air intake, and the inner wall of the second volute is provided with an installation groove. The first volute and the second volute are fastened together to form the air outlet. The centrifugal fan includes a motor and fan blades mounted on the motor shaft. The motor is mounted in the mounting groove, and the fan blades are located between the first volute and the second volute and cover the air intake.

4. The integrated heat pump water heater according to claim 3, characterized in that, The air intake is arranged directly opposite the mounting groove, the mounting groove has a circular cross-section, and the center line of the mounting groove is collinear with the center line of the air intake.

5. The integrated heat pump water heater according to claim 3, characterized in that, The second volute is provided with a protrusion that protrudes outward, and the mounting groove is formed in the protrusion.

6. The integrated heat pump water heater according to claim 1, characterized in that, It also includes a leak-proof device, which includes: The first water pipe is provided with a first inlet pipe head, a first connecting pipe head and a first outlet pipe head. The first water pipe is also provided with a first connecting flow channel. Port one of the first connecting flow channel is connected to the first inlet pipe head, and port two of the first connecting flow channel is connected to the first outlet pipe head. The second water pipe is equipped with a second inlet pipe head, a second connecting pipe head and a second outlet pipe head that are interconnected. The second inlet pipe head is equipped with a one-way valve, which is used to control the water flow from the second inlet pipe head into the second water pipe in one direction. A pressure on / off valve is provided in the first connecting pipe head and is used to open or close the second port of the first connecting flow channel according to the water pressure at the first connecting pipe head. A connecting pipe, wherein the connecting pipe is connected between the first connecting pipe head and the second connecting pipe head; The first water outlet pipe is connected to the water inlet pipe, and the second water inlet pipe is connected to the water outlet pipe.

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