Energy-storage low-temperature variable-frequency heat pump system

Abstract

The invention relates to the technical field of heat pump systems, in particular to an energy storage low-temperature variable-frequency heat pump system which comprises an outdoor unit, the outdoor unit comprises a machine shell, and a water pump structure, a gas collecting pipe structure and a condenser structure are arranged in the machine shell; a plurality of water pump bodies can be arranged according to the requirements of the liquid discharging amount and the flow speed, every two adjacent water pump bodies are connected through a driving shaft, liquid inlets between every two adjacent water pump bodies are connected, and liquid outlets between every two adjacent water pump bodies are connected; liquid can be discharged after passing through the multiple water pump bodies, and the flow speed and the discharge capacity can be increased according to different requirements; only one motor is needed, and a plurality of water pumps are arranged, so that the flow speed can be adjusted; and when the top positioning strip swings to a longitudinal state, the top positioning hole is coaxially aligned with the bottom positioning hole, and the positioning shaft can be inserted into the top positioning hole, so that the top positioning strip is fixedly connected with the mounting bracket, the longitudinal posture is kept, and the motor module is positioned and mounted.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump systems, and in particular to an energy storage low-temperature variable frequency heat pump system. Background Art

[0002] At present, the control mainboard of the variable frequency heat pump unit is seriously heated during operation, even up to 90°C. In the prior art, a heat sink fin is set at the bottom of the control mainboard, and the heat sink fin is connected to the refrigerant auxiliary circuit, and the refrigerant is used to dissipate heat from the heat sink fin. However, this solution has the following problems: Heat is dissipated through the refrigerant auxiliary circuit, which has low heat dissipation efficiency and increases the operating load of the compressor.

[0003] When the unit dissipates heat through the refrigerant auxiliary circuit, condensation is likely to form on the surface of the cooling fins due to the low temperature, and the condensed water droplets are likely to cause damage to the electronic components in the heat pump unit.

[0004] In this regard, the Chinese invention with application number CN202210136466.9 discloses an outdoor unit and a heat pump system. The outdoor unit of the present invention includes a hood, a heat exchanger is arranged in the hood; a fan is arranged in the hood, and the fan is used to suck the external air into the hood; an air guide frame is arranged in the hood, and the air guide frame is provided with an air guide port, the air guide port faces the air supply surface of the fan, and the side of the air guide frame away from the fan is provided with a first channel and a second channel, and the air inlets of the first channel and the second channel are both connected to the air guide port; a control mainboard is arranged in the hood, and the control mainboard includes a heat dissipation part, and the heat dissipation part is arranged in the second channel. By arranging a control mainboard in the hood, the heat dissipation part of the control mainboard is arranged in the second channel, when the fan maintains the suction action, the heat dissipation part in the second channel continues to exchange heat with the flowing air, thereby cooling the control mainboard, so the outdoor unit of the present application can reduce the risk of thermal damage to the control mainboard.

[0005] Most of the existing fin modules are plate-shaped structures. When the heat dissipation area needs to be increased, the area of ​​the fin module is often increased laterally to increase the overall area. However, the space of the heat pump outdoor unit is limited, so the area of ​​the fin module increased laterally cannot match the space of the heat pump outdoor unit and cannot be installed. Summary of the invention

[0006] The purpose of the present invention is to provide an energy storage low-temperature variable frequency heat pump system in view of the deficiencies in the prior art.

[0007] To achieve the above object, the technical solution of the present invention is as follows: An energy storage low-temperature variable frequency heat pump system comprises an outdoor unit, the outdoor unit comprises a casing, a water pump structure, a gas collecting pipe structure and a condenser structure are arranged in the casing; The water pump structure comprises a motor module and a mounting bracket mounted at the bottom of the motor module, the mounting bracket is provided with a plurality of water pump bodies, the water pump body comprises a shell, a water pump cavity is formed in the shell, a rotor body is provided in the water pump cavity, a driving shaft connected to the rotor body is installed between the top and bottom of the shell; two adjacent water pump bodies are coaxially connected through the driving shaft; the shell is provided with a liquid inlet and a liquid outlet communicated with the water pump cavity; the liquid inlets of two adjacent water pump bodies are connected, and the liquid outlets of two adjacent water pump bodies are connected; The top of the mounting bracket is also provided with a swingable top positioning bar, and a plurality of interlocking blocks are provided along the top positioning bar, and the interlocking blocks can be embedded in the slots of the motor module; the top of the mounting bracket is formed with a bottom positioning hole coaxially aligned with the top positioning hole, and the bottom positioning hole is provided with a positioning shaft that can be elastically inserted into the top positioning hole; The gas collecting pipe structure comprises a main pipe and a plurality of auxiliary pipes, wherein a movable connecting piece is installed between the main pipe and the auxiliary pipe, and the movable connecting piece comprises a connecting rod for the auxiliary pipe to move axially and radially along the main pipe; a bottom hose is installed at the bottom of the auxiliary pipe, the bottom hose is connected to the main pipe, and an air pipe joint is installed at the top of the auxiliary pipe; The condenser structure includes a fin module, which includes a first heat exchange area and a second heat exchange area. The first heat exchange area is perpendicular to the second heat exchange area, and the first heat exchange area is integrally connected to the second heat exchange area in an arc shape. The fin module is penetrated by a plurality of heat exchange tubes, and two adjacent heat exchange tubes are connected. A connector is installed at the end of one of the heat exchange tubes, and the connector includes a connecting sleeve, and a connector sleeve with different inner diameters is detachably mounted in the connecting sleeve.

[0008] The beneficial effects of the present invention are as follows: liquid enters the water pump cavity of the shell through the liquid inlet of the water pump body, and is discharged along the liquid outlet under the rotation of the rotor body; multiple water pump bodies can be provided according to the requirements of the liquid discharge amount and the flow rate, two adjacent water pump bodies are connected through a driving shaft, the liquid inlets between the two adjacent water pump bodies are connected, and the liquid outlets between the two adjacent water pump bodies are connected; so that the liquid can be discharged after passing through multiple water pump bodies, and the flow rate and the displacement can be increased according to different requirements; only one motor is needed, and multiple water pump bodies are provided to achieve the adjustment of the flow rate; When the top positioning bar swings to the longitudinal state, the top positioning hole is coaxially aligned with the bottom positioning hole. At this time, the positioning shaft can be inserted into the top positioning hole, so that the top positioning bar is fixedly connected to the mounting bracket, maintaining the longitudinal posture, and realizing the positioning installation of the motor module; When multiple hole positions need to be connected, the auxiliary pipeline can adjust the position accordingly through the connecting rod, and the auxiliary pipeline can move axially and radially along the main pipeline through the movable connecting parts and the connecting rod, so that the air pipe joint of the auxiliary pipeline can be connected to multiple hole positions, and connection with multiple holes arranged at equal angles can be achieved, and the gas collection function is better improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the outdoor unit.

[0010] Figure 2 It is a schematic diagram of the structure of the water pump.

[0011] Figure 3 It is a structural schematic diagram of the connection between the motor module and the mounting bracket.

[0012] Figure 4 It is a schematic diagram of the structure of the water pump body.

[0013] Figure 5 Schematic diagram of the explosion structure of the water pump body.

[0014] Figure 6 This is a schematic diagram of the exploded structure of the water pump body from another perspective.

[0015] Figure 7 Schematic diagram of the gas collecting pipe structure.

[0016] Figure 8 A partial schematic diagram of the gas collecting pipe structure.

[0017] Fig. 9 Schematic diagram of the condenser structure.

[0018] Fig.10 It is a partial structural diagram of the condenser structure.

[0019] Fig.11 It is a schematic diagram of the structure of the connector and the inlet pipe.

[0020] Fig.12 for Fig.10 Schematic diagram of the cross-sectional structure.

[0021] Fig.13 Schematic diagram of the structure of the heat sink fins.

[0022] Reference numerals include: 1-outdoor unit, 101-housing, 102-water pump structure, 103-water pump bracket assembly, 11-Motor module, 110-mounting bracket, 111-top connecting frame, 112-top connecting plate, 113-bottom connecting frame, 114-installation groove, 115-side positioning bar, 116-top positioning bar, 117-fitting block, 118-positioning shaft, 12-Water pump body, 121-housing, 122-eccentric hole, 123-driving shaft, 124-rotor body, 125-cylinder, 126-paddle, 127-movable slot, 128-compression spring, 13-Water pump chamber, 131-liquid inlet, 132-first conduit, 133-liquid inlet tank, 134-liquid outlet, 135-second conduit, 136-liquid outlet tank, 137-water pump positioning plate, 138-top positioning hole, 139-bottom positioning hole, 2-Gas collecting pipe structure, 21- Main pipeline, 211-sealing plug, 212-connecting screw sleeve, 213-gas collecting seat, 214-gas collecting cavity, 215-gas collecting hole, 216-bottom hose, 217-top movable sleeve, 218-bottom movable sleeve, 219-auxiliary pipeline, 22-Active connector, 221-first connecting rod, 222-second connecting rod, 223-rotating connecting shaft, 224-rotating connecting seat, 225-outer wall seat, 226-inner end connecting shaft, 227-rotating connecting groove, 3-Condenser structure, 31-Fin module, 311-first heat exchange area, 312-second heat exchange area, 313-heat dissipation fins, 314-heat dissipation holes, 315-contact tube, 319-bend connecting pipe, 32-connector, 321-connecting sleeve, 322-joint sleeve, 323-first guide groove, 324-first guide block, 325-heat exchange tube, 33-Entry pipe, 331-entry head, 332-second guide groove, 333-second guide block, 334-external thread sleeve, 335-external thread structure, 336-connector nozzle, DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-13 As shown, an energy storage low-temperature variable frequency heat pump system includes an outdoor unit 1, the outdoor unit 1 includes a casing 101, and a water pump structure 102, a gas collecting pipe structure 2 and a condenser structure 3 are arranged in the casing 101.

[0025] A water pump bracket assembly 103 for installing and fixing the water pump structure 102 is provided in the housing 101. The water pump bracket assembly 103 can be used to install and fix the water pump structure 102 to prevent shaking during use and improve stability.

[0026] The water pump structure 102 includes a motor module 11 and a mounting bracket 110 mounted on the bottom of the motor module 11 . The mounting bracket 110 is provided with a plurality of water pump bodies 12 . The water pump body 12 includes a housing 121 .

[0027] The mounting bracket 110 includes a top connecting frame 111 and a bottom connecting frame 113. The top connecting frame 111 is formed with a top connecting plate 112 connected to the bottom of the motor module 11, and the top connecting plate 112 is provided with a plurality of top connecting holes. The motor module 11 is fixedly mounted on the top of the top connecting frame 111 through the top positioning hole 138. The bottom connecting frame 113 is longitudinally formed with a plurality of spaced mounting grooves 114, a portion of the housing 121 is embedded in the mounting groove 114, and the bottom connecting frame 113 is also provided with a side positioning strip 115 that cooperates with the outer side wall of the housing 121. The housing 121 of the water pump body 12 is embedded in the mounting groove 114 to achieve installation. A corresponding number of water pump bodies 12 can be installed to the bottom connecting frame 113 according to needs.

[0028] A water pump cavity 13 is formed in the shell 121, and a rotor body 124 is arranged in the water pump cavity 13. A driving shaft 123 connected to the rotor body 124 is installed between the top and the bottom of the shell 121; two adjacent water pump bodies 12 are coaxially connected through the driving shaft 123; the shell 121 is provided with a liquid inlet 131 and a liquid outlet 134 connected to the water pump cavity 13; the liquid inlet 131 between two adjacent water pump bodies 12 is connected, and the liquid outlet 134 between two adjacent water pump bodies 12 is connected.

[0029] The top of the mounting bracket 110 is also provided with a swingable top positioning bar 116, and the top positioning bar 116 is provided with a plurality of interlocking blocks 117 along the way, and the interlocking blocks 117 can be embedded in the slot of the motor module 11, and interlocked with the motor module 11 to realize the positioning of the motor module 11. The bottom of the top positioning bar 116 is formed with a water pump positioning plate 137, and the water pump positioning plate 137 is formed with a top positioning hole 138. The top of the mounting bracket 110 is formed with a bottom positioning hole 139 coaxially aligned with the top positioning hole 138, and the bottom positioning hole 139 is installed with a positioning shaft 118 that can be elastically inserted into the top positioning hole 138; when the top positioning bar 116 swings to the longitudinal state, the top positioning hole 138 is coaxially aligned with the bottom positioning hole 139, and the positioning shaft 118 can be inserted into the top positioning hole 138 at this time, so that the top positioning bar 116 is fixedly connected to the mounting bracket 110, maintaining a longitudinal posture, and realizing the positioning and installation of the motor module 11.

[0030] The liquid enters the water pump chamber 13 of the shell 121 through the liquid inlet 131 of the water pump body 12, and is discharged along the liquid outlet 134 under the rotation of the rotor body 124; a plurality of water pump bodies 12 can be provided according to the requirements of the liquid discharge volume and the flow rate, and two adjacent water pump bodies 12 are connected through the drive shaft 123, the liquid inlet 131 between the two adjacent water pump bodies 12 is connected, and the liquid outlet 134 between the two adjacent water pump bodies 12 is connected; so that the liquid can be discharged after passing through the plurality of water pump bodies 12, and the flow rate and the displacement can be increased according to different requirements; only one motor is required and a plurality of water pump bodies 12 are provided to achieve the adjustment of the flow rate.

[0031] Furthermore, the shell 121 is formed with an eccentric hole 122, the drive shaft 123 is installed in the eccentric hole 122, and the rotor body 124 is connected to the drive shaft 123 rotatably installed in the eccentric hole 122; the rotor body 124 includes a cylinder 125 connected to the drive shaft 123, and the cylinder 125 is radially arranged with paddles 126. When the rotor body 124 rotates, the liquid entering the water pump chamber 13 from the liquid inlet 131 is transferred to the liquid outlet 134; in this embodiment, the liquid is passed into the water pump chamber 13 of the water pump body 12 through the liquid inlet 131, and the rotor body 124 in the water pump chamber 13 rotates under the drive of the drive shaft 123, and the radially arranged paddles 126 move along the cavity wall of the water pump chamber 13 to discharge the liquid entering the water pump chamber 13 to the liquid outlet 134; thereby achieving the effect of liquid circulation.

[0032] It should be noted that since the drive shaft 123 is installed in the eccentric hole 122, when the water pump body 12 rotates in the water pump chamber 13, that is, when the paddle 126 moves from the liquid inlet 131 to the liquid outlet 134, the space for liquid flow is compressed, so the liquid will be squeezed to the liquid outlet 134, that is, when the motor module 11 rotates normally, the liquid can quickly flow from the liquid inlet 131 to the liquid outlet 134. Compared with the traditional coaxial shaft structure, the water pump body 12 of this scheme greatly increases the flow rate and the efficiency of liquid circulation is higher.

[0033] Preferably, the cylinder 125 is radially formed with a movable groove 127, and the paddle 126 is elastically installed in the movable groove 127. A compression spring 128 is provided in the movable groove 127 to drive the paddle 126 to pop out radially outward; since the rotation trajectory of the water pump body 12 in the water pump chamber 13 is elliptical, the paddle 126 will be elastically driven by the compression spring 128, and will radially expand and contract along the movable groove 127, so that the outer end of the paddle 126 always keeps in contact with the cavity wall of the water pump chamber 13, thereby ensuring the stability of liquid flow.

[0034] The liquid inlet 131 and the liquid outlet 134 are respectively formed longitudinally through the housing 121. The liquid inlet 131 includes a first conduit 132 formed longitudinally in the housing 121, and the first conduit 132 is formed with a liquid inlet groove 133 connected to the water pump chamber 13 along the way. The first conduit 132 extends longitudinally toward the top and the bottom respectively, and the liquid inlets 131 of two adjacent water pump bodies 12 are connected to each other through the first conduit 132. The liquid outlet 134 includes a second conduit 135 formed longitudinally in the housing 121, and the second conduit 135 is formed with a liquid outlet groove 136 connected to the water pump chamber 13 along the way. The second conduit 135 extends longitudinally toward the top and the bottom respectively, and the liquid outlets 134 of two adjacent water pump bodies 12 are connected to each other through the second conduit 135. According to different needs, multiple water pump bodies 12 can be set, the first conduit 132 between two adjacent water pump bodies 12 is sealed and connected, and the second conduit 135 between two adjacent water pump bodies 12 is sealed and connected; and the driving shafts 123 between two adjacent water pump bodies 12 are coaxially connected, and the driving shaft 123 at the top is drivingly connected to the motor shaft of the motor module 11. Under the drive of the motor module 11, multiple water pump bodies 12 work simultaneously, and liquid is introduced from the first conduit 132 at the lower end. The liquid can be discharged to the liquid outlet 134 after passing through the liquid inlets 131 of the multiple water pump bodies 12 respectively, and finally converge to the second conduit 135 at the lowest end for discharge, thereby realizing efficient circulation of the liquid.

[0035] A heat exchange module is also provided in the housing 101, and the heat exchange module is connected to the gas collecting pipe assembly. The gas collecting pipe assembly includes a main pipe 21 and a plurality of secondary pipes 219. The main pipe 21 of the gas collecting pipe assembly is connected to the first end of the heat exchange module, and two adjacent heat exchange modules are connected through the gas collecting pipe assembly.

[0036] A movable connecting piece 22 is installed between the main pipeline 21 and the auxiliary pipeline 219, and the movable connecting piece 22 includes a connecting rod for the auxiliary pipeline 219 to move axially and radially along the main pipeline 21; a bottom hose 216 is installed at the bottom of the auxiliary pipeline 219, and the bottom hose 216 is connected to the main pipeline 21, and an air pipe joint is installed at the top of the auxiliary pipeline 219.

[0037] When multiple hole positions need to be connected, the auxiliary pipeline 219 can be adjusted in position accordingly through the connecting rod. The auxiliary pipeline 219 can move axially and radially along the main pipeline 21 through the movable connecting part 22 and the connecting rod, so that the air pipe joint of the auxiliary pipeline 219 can be connected to multiple hole positions, realizing connection with multiple hole positions arranged at equal angles, and the gas collection function is better improved.

[0038] Specifically, the movable connecting member 22 also includes a top movable sleeve 217 and a bottom movable sleeve 218 sleeved on the main pipeline 21, a first connecting rod 221 is rotatably installed between the bottom movable sleeve 218 and the auxiliary pipeline 219, and a second connecting rod 222 is rotatably installed between the top movable sleeve 217 and the first connecting rod 221. In this embodiment, the axial position of the auxiliary pipeline 219 can be adjusted by simultaneously moving the top movable sleeve 217 and the bottom movable sleeve 218, and the air pipe joint installed on the top of the auxiliary pipeline 219 can be close to the hole position and connected with the corresponding hole position. In addition, according to the position of the hole position, the top movable sleeve 217 or the bottom movable sleeve 218 is moved, so that the angle between the first connecting rod 221 and the second connecting rod 222 changes, the distance between the auxiliary pipeline 219 and the main pipeline 21 can be adjusted, and the air pipe joint installed on the top of the auxiliary pipeline 219 can be coaxially aligned with the hole position to achieve plug-in connection.

[0039] Furthermore, the auxiliary pipe 219 is provided with a rotating connecting piece rotatably connected to the first connecting rod 221, and the rotating connecting piece includes a rotating connecting shaft 223 transversely passed through the auxiliary pipe 219, and a rotating connecting seat 224 is installed at the end of the first connecting rod 221; one end of the first connecting rod 221 is rotatably connected to the rotating connecting shaft 223 of the auxiliary pipe 219 through the rotating connecting seat 224, so that the outer end of the first connecting rod 221 is rotatably connected to the auxiliary pipe 219, thereby realizing the distance adjustment between the auxiliary pipe 219 and the main pipe 21.

[0040] Furthermore, the rotating connecting seat 224 is provided with a movable groove, and the two side walls of the movable groove are provided with rotating connecting holes rotatably connected to the rotating connecting shaft 223; the rotating connecting seat 224 is rotatably connected to the rotating connecting shaft 223 of the auxiliary pipe 219 through the rotating connecting hole of the movable groove, thereby realizing the rotational connection between the outer end of the first connecting rod 221 and the auxiliary pipe 219, thereby realizing the distance adjustment between the auxiliary pipe 219 and the main pipe 21.

[0041] Furthermore, the outer wall of the top movable sleeve 217 is respectively formed with an outer wall seat 225, and the outer wall seat 225 is installed with an inner end connecting shaft 226. The inner ends of the first connecting rod 221 and the second connecting rod 222 are both formed with a rotating connecting groove 227 that is rotatably connected to the inner end connecting shaft 226; the first connecting rod 221 and the second connecting rod 222 are respectively rotatably connected to the inner end connecting shaft 226 of the outer wall of the top movable sleeve 217 through the rotating connecting groove 227.

[0042] Preferably, there are two first connecting rods 221, which are arranged parallel to each other and spaced apart from each other, and one of the first connecting rods 221 is installed with the second connecting rod 222; under the action of the two first connecting rods 221, the main pipeline 21 and the auxiliary pipeline 219 always maintain a state of being arranged parallel to each other and spaced apart from each other.

[0043] A gas collecting seat 213 is formed at the lower half of the main pipeline 21, and a gas collecting cavity 214 is formed in the gas collecting seat 213. The gas collecting cavity 214 is connected to the main pipeline 21, and a plurality of gas collecting holes 215 connected to the gas collecting cavity 214 are formed on the top of the gas collecting seat 213. The connecting hose at the bottom of the auxiliary pipeline 219 is sealed and connected to the gas collecting holes 215. Since the bottom of the auxiliary pipeline 219 is connected as a hose, when the position of the auxiliary pipeline 219 changes, the bottom hose 216 can remain connected to the gas collecting holes 215 of the gas collecting seat 213 without breaking, thereby ensuring its stability and airtightness during gas collection and reducing the occurrence of leakage.

[0044] A sealing plug 211 and a connecting screw sleeve 212 are installed on the top of the main pipe 21. When the opening at the top of the main pipe 21 is not in use, the top of the main pipe 21 is sealed by the sealing plug 211 to prevent leakage from the top of the main pipe 21. Then, the main pipe 21 can be connected to the screw through the connecting screw sleeve 212 to fix the main pipe 21.

[0045] The condenser structure 3 includes a fin module 31, which includes a first heat exchange zone 311 and a second heat exchange zone 312. The first heat exchange zone 311 and the second heat exchange zone 312 are perpendicular to each other, and the first heat exchange zone 311 and the second heat exchange zone 312 are integrally connected in an arc shape; a plurality of heat exchange tubes 325 are passed through the fin module 31, and two adjacent heat exchange tubes 325 are connected; a connector 32 is installed at the end of one of the heat exchange tubes 325, and the connector 32 includes a connecting sleeve 321, and a connector sleeve 322 with different inner diameters is detachably mounted in the connecting sleeve 321.

[0046] During heat exchange, the heat of the heat exchange tube 325 will be transferred through the fin module 31, and the heat will be transferred to the fin module 31 to achieve heat dissipation; in addition, since the first heat exchange area 311 and the second heat exchange area 312 are perpendicular to each other, and the first heat exchange area 311 and the second heat exchange area 312 are integrally connected in an arc shape to form an L-shaped fin module 31, the fin module 31 can be adapted to the internal space shape of the outdoor unit 1 of the heat pump system to improve the utilization of the space; the connector 32 of the heat exchange tube 325 can be connected to entry joints of various sizes, can be used in different scenarios, and improve practicality.

[0047] A curved connecting pipe 319 is provided between the heat exchange tubes 325, and a joint nozzle 336 is installed at the end of the curved connecting pipe 319. The joint nozzle 336 is inserted into the end of the curved connecting pipe 319 to form a continuous and sealed pipeline with multiple heat exchange tubes 325, and the contact area between the liquid or gas in the heat exchange tube 325 and the fin module 31 is increased, thereby increasing the heat exchange efficiency.

[0048] Furthermore, the first heat exchange area 311 and the second heat exchange area 312 respectively include a plurality of heat dissipation fins 313 arranged in parallel and spaced apart, and two adjacent heat dissipation fins 313 are formed with coaxially aligned heat dissipation holes 314, and the heat dissipation holes 314 can be passed through by the heat exchange tube 325. The hole wall of the heat dissipation hole 314 is formed with a contact tube 315, and the contact tube 315 can be passed through by the heat exchange tube 325. After the heat exchange tube 325 is inserted into the heat dissipation hole 314 of the heat dissipation fin 313, the contact tube 315 contacts the outer ring wall surface of the heat exchange tube 325, which can increase the surface contact area, and the heat exchange efficiency is further improved during heat exchange.

[0049] One of the connectors 32 is used for entry, and the other connector 32 is used for discharge. The connector 32 is connected to an entry pipe 33, and the entry pipe 33 is installed with an entry head 331 inserted into the joint sleeve 322. The inner ring wall of the connection sleeve 321 is formed with a plurality of first guide grooves 323 along the axial direction, and the outer ring wall of the joint sleeve 322 is formed with a first guide block 324 that slides with the first guide groove 323 along the axial direction. When it is necessary to cooperate with the entry heads 331 of different sizes, the joint sleeves 322 of different inner diameters can be inserted into the connection sleeve 321, and the first guide groove 323 slides with the first guide block 324 to achieve insertion, so that the inner hole diameter of the connection sleeve 321 changes. At this time, the entry head 331 of the entry pipe 33 can be connected with the connector 32 of the corresponding size.

[0050] Specifically, the inner ring wall of the joint sleeve 322 is axially formed with a plurality of second guide grooves 332, and the outer ring wall of the entry head 331 is axially formed with a second guide block 333 that slides with the second guide groove 332; when the joint sleeve 322 is connected and inserted with the entry head 331, the entry head 331 of the entry tube 33 can pass through the second guide block 333 and the second guide groove 332 of the inner ring wall of the joint sleeve 322 to achieve fool-proof insertion.

[0051] Furthermore, an external thread structure 335 is formed on the outer ring wall of the connecting sleeve 321, and an external thread sleeve 334 is provided on the end sliding sleeve of the curved connecting pipe 319, and an internal thread structure that is threadedly matched with the external thread structure 335 of the connecting sleeve 321 is formed on the inner ring wall of the external thread sleeve 334. After the entry pipe 33 is connected to the connector 32, the external thread sleeve 334 located at the connector 32 can be rotated, and the knob is threadedly matched with the external thread structure 335 at the end of the curved connecting pipe 319 to achieve a knob connection, thereby preventing the entry pipe 33 from falling off after being connected to the connector 32, thereby ensuring the stability of the connection.

[0052] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An energy storage low-temperature variable frequency heat pump system, comprising an outdoor unit, the outdoor unit comprising a casing, characterized in that: The housing is provided with a water pump structure, an air collecting pipe structure and a condenser structure; The water pump structure comprises a motor module and a mounting bracket mounted at the bottom of the motor module, the mounting bracket is provided with a plurality of water pump bodies, the water pump body comprises a shell, a water pump cavity is formed in the shell, a rotor body is provided in the water pump cavity, a driving shaft connected to the rotor body is installed between the top and bottom of the shell; two adjacent water pump bodies are coaxially connected through the driving shaft; the shell is provided with a liquid inlet and a liquid outlet communicated with the water pump cavity; the liquid inlets of two adjacent water pump bodies are connected, and the liquid outlets of two adjacent water pump bodies are connected; The top of the mounting bracket is also provided with a swingable top positioning bar, and a plurality of interlocking blocks are provided along the top positioning bar, and the interlocking blocks can be embedded in the slots of the motor module; the top of the mounting bracket is formed with a bottom positioning hole coaxially aligned with the top positioning hole, and the bottom positioning hole is provided with a positioning shaft that can be elastically inserted into the top positioning hole; The gas collecting pipe structure comprises a main pipe and a plurality of auxiliary pipes, wherein a movable connecting piece is installed between the main pipe and the auxiliary pipe, and the movable connecting piece comprises a connecting rod for the auxiliary pipe to move axially and radially along the main pipe; a bottom hose is installed at the bottom of the auxiliary pipe, the bottom hose is connected to the main pipe, and an air pipe joint is installed at the top of the auxiliary pipe; The condenser structure includes a fin module, which includes a first heat exchange area and a second heat exchange area. The first heat exchange area is perpendicular to the second heat exchange area, and the first heat exchange area is integrally connected to the second heat exchange area in an arc shape. The fin module is penetrated by a plurality of heat exchange tubes, and two adjacent heat exchange tubes are connected. A connector is installed at the end of one of the heat exchange tubes, and the connector includes a connecting sleeve, and a connector sleeve with different inner diameters is detachably mounted in the connecting sleeve.

2. The energy storage low-temperature variable frequency heat pump system according to claim 1, characterized in that: The shell is formed with an eccentric hole, the drive shaft is installed in the eccentric hole, and the rotor body is connected to the drive shaft rotatably installed in the eccentric hole; the rotor body includes a cylinder connected to the drive shaft, and the cylinder is radially arranged with paddles. When the rotor body rotates, the liquid entering the water pump cavity from the liquid inlet is transferred to the liquid outlet; the cylinder is radially formed with a movable groove, the paddle is elastically installed in the movable groove, and a compression spring is arranged in the movable groove to drive the paddle to pop out radially.

3. The energy storage low-temperature variable frequency heat pump system according to claim 2, characterized in that: The liquid inlet includes a first conduit longitudinally formed in the shell, and a liquid inlet groove connected to the water pump cavity is formed along the first conduit. The first conduit extends longitudinally to the top and the bottom respectively, and the liquid inlets of two adjacent water pump bodies are connected to each other through the first conduit.

4. The energy storage low-temperature variable frequency heat pump system according to claim 3, characterized in that: The liquid outlet includes a second conduit longitudinally formed in the shell, and the second conduit is formed with a liquid outlet groove connected to the water pump cavity along the way. The second conduit extends longitudinally to the top and the bottom respectively, and the liquid outlets of two adjacent water pump bodies are connected to each other through the second conduit.

5. The energy storage low-temperature variable frequency heat pump system according to claim 1, characterized in that: The movable connecting piece also includes a top movable sleeve and a bottom movable sleeve which are sleeved on the main pipeline, a first connecting rod is rotatably installed between the bottom movable sleeve and the auxiliary pipeline, and a second connecting rod is rotatably installed between the top movable sleeve and the first connecting rod; the auxiliary pipeline is provided with a rotating connecting piece rotatably connected to the first connecting rod, the rotating connecting piece includes a rotating connecting shaft which is transversely penetrated in the auxiliary pipeline, and a rotating connecting seat is installed at the end of the first connecting rod.

6. The energy storage low-temperature variable frequency heat pump system according to claim 5, characterized in that: The rotating connection seat is provided with a movable groove, and the two side walls of the movable groove are provided with rotating connection holes rotatably connected to the rotating connection shaft; the outer walls of the top movable sleeve are respectively formed with outer wall seats, and the outer wall seats are installed with inner end connecting shafts, and the inner ends of the first connecting rod and the second connecting rod are both formed with rotating connection grooves rotatably connected to the inner end connecting shafts.

7. The energy storage low-temperature variable frequency heat pump system according to claim 1, characterized in that: A curved connecting pipe is arranged between the heat exchange tubes, and a joint nozzle is installed at the end of the curved connecting pipe; the first heat exchange area and the second heat exchange area respectively include a plurality of heat dissipation fins arranged in parallel and spaced apart, and two adjacent heat dissipation fins are formed with coaxially aligned heat dissipation holes, and the heat dissipation holes can be used for the heat exchange tube to pass through.

8. The energy storage low-temperature variable frequency heat pump system according to claim 7, characterized in that: The inner ring wall of the connecting sleeve is formed with a plurality of first guide grooves along the axial direction, and the outer ring wall of the joint sleeve is formed with a first guide block slidably matched with the first guide grooves along the axial direction; the connecting head is connected to the entry pipe, and the entry pipe is installed with an entry head inserted into the joint sleeve.

9. The energy storage low-temperature variable frequency heat pump system according to claim 8, characterized in that: The inner ring wall of the joint sleeve is formed with multiple second guide grooves along the axial direction, and the outer ring wall of the entry head is formed with a second guide block that slides with the second guide groove along the axial direction; the outer ring wall of the connecting sleeve is formed with an external thread structure, the end sliding sleeve of the curved connecting pipe is provided with an external thread sleeve, and the inner ring wall of the external thread sleeve is formed with an internal thread structure that threadably cooperates with the external thread structure of the connecting sleeve.

10. The energy storage low-temperature variable frequency heat pump system according to claim 9, characterized in that: The fin module also includes a side fixing plate for fixing the heat dissipation fins, and side positioning plates parallel to the heat dissipation fins are respectively formed on both sides of the side fixing plate. The side fixing plate cooperates with the side positioning plate to position and fix the multiple heat dissipation fins.

Images