Outdoor unit and air energy heat pump system

Abstract

The utility model discloses an outdoor unit and an air energy heat pump system. The outdoor unit comprises a first shell, an outdoor side heat exchanger located in the first shell, a water tank and a controller. The water tank and the outdoor heat exchanger are arranged in parallel, and the controller is arranged below the outdoor heat exchanger, far away from one side of the water tank and located on one side of the width direction of the first shell. During installation, installation personnel only need to carry out cable connection on the wiring terminal of the controller below the outdoor heat exchanger; and during maintenance, the maintenance can be completed by replacing corresponding parts of the controller below the outdoor heat exchanger, so that the convenience in installation and maintenance of the outdoor unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air energy heat pumps, in particular to an outdoor unit and an air energy heat pump system. Background Art

[0002] An air-source heat pump is a device that uses the principle of heat transfer to transfer heat from a low-temperature heat source to a high-temperature heat source. Driven by electricity, the heat pump can obtain heat from the air and apply it to indoor terminal equipment, such as fan coil units, floor heating and other indoor terminal equipment. Thus, consuming 1 unit of electricity can absorb 2 to 3 units of heat from the outdoor environment, which can then be used to heat water and applied to indoor terminal equipment.

[0003] The air-to-energy heat pump of dual-generation uses an air source system to provide winter heating and summer cooling services; trigeneration means that in addition to winter heating and summer cooling services, it also provides users with domestic hot water required for all seasons. In order to achieve the relevant functions, the outdoor unit of the existing dual-generation or trigeneration heat pump has more equipment and parts, so the electronic control parts in the equipment need to be repaired or replaced. However, due to the differences in the design of the installation platform of the outdoor unit in the prior art, when the electric control box (or controller) encounters an installation environment with insufficient installation space or maintenance space, it is inconvenient to carry out the wiring work for installing or repairing the electric control box, and the maintenance work is relatively difficult. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an improved outdoor unit and air energy heat pump system in view of at least one defect of the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve the technical problem is: to provide an outdoor unit, which includes:

[0006] a first shell;

[0007] An outdoor heat exchanger is located in the first shell;

[0008] A water tank is located in the first shell, and the water tank is arranged in parallel with the outdoor heat exchanger;

[0009] A controller is located in the first shell, the controller is arranged below the outdoor heat exchanger, the controller is away from the water tank, and the controller is located on one side in the width direction of the first shell.

[0010] Preferably, the controller comprises a second shell and an electrical component; the second shell defines a receiving area, and the electrical component is placed in the receiving area.

[0011] Preferably, the controller further comprises a heat dissipation element arranged in the accommodation area, the heat dissipation element is fixed to the electrical component, the electrical component dissipates heat through the heat dissipation element, and the outdoor heat exchanger is connected to the accommodation area.

[0012] Preferably, the second shell includes a first substrate and a second substrate connected to each other, and the receiving area includes a first receiving area and a second receiving area;

[0013] The first substrate defines the first receiving area, and the electrical component is placed in the first receiving area;

[0014] The first substrate is provided with a through hole for the heat dissipation element to pass through; the second substrate is connected to the first substrate and surrounds the through hole, the second substrate and the first substrate together define the second receiving area, and the heat dissipation element is placed in the second receiving area;

[0015] The second receiving area is communicated with the outdoor heat exchanger and the first receiving area respectively.

[0016] Preferably, the first substrate has an open end on a side away from the second substrate, and the open end faces away from the water tank.

[0017] Preferably, the outdoor unit further comprises a first partition and a second partition disposed inside the first housing;

[0018] The first partition is located between the controller and the outdoor heat exchanger, and is used to separate the controller and the outdoor heat exchanger;

[0019] The second partition is located between the water tank and the outdoor heat exchanger, and is used to separate the water tank and the outdoor heat exchanger.

[0020] Preferably, a vent is provided on the first partition plate, and the controller is connected to the outdoor heat exchanger through the vent.

[0021] Preferably, the outdoor unit further comprises a plurality of columns arranged in the first shell, each of the columns being connected between the first shell and the first partition; and the controller is connected to at least one of the columns.

[0022] Preferably, a wiring hole is provided on the first shell, and the wiring hole is used for connecting a cable outside the first shell to the controller.

[0023] The utility model also provides an air energy heat pump system, which comprises the outdoor unit described in any one of the above items.

[0024] The utility model has at least the following beneficial effects: since the controller is located below the outdoor heat exchanger and on one side in the width direction of the first shell, during installation, the installer only needs to connect the cables to the wiring terminals of the controller below the outdoor heat exchanger; during maintenance, the maintenance can be completed by replacing the corresponding parts of the controller below the outdoor heat exchanger, which is conducive to improving the convenience of installation and maintenance of the outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments, in which:

[0026] Figure 1 This is a schematic diagram of the overall structure of an outdoor unit of an embodiment of the utility model;

[0027] Figure 2 yes Figure 1 The internal structure schematic diagram of the outdoor unit after removing a part of the first shell;

[0028] Figure 3 yes Figure 2 The structural diagram of the outdoor unit from another perspective is shown;

[0029] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0030] Figure 5 yes Figure 2 A schematic diagram of a partial exploded structure of the outdoor unit shown;

[0031] Figure 6 yes Figure 5 A schematic structural diagram of the second shell of the outdoor unit is shown. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0033] Please also read Figures 1 to 3 , Figure 1 The overall structure of the outdoor unit of one embodiment of the utility model is shown. Figure 2 The figure shows the local structure of the outdoor unit after removing a part of the first shell 1. Figure 3 for Figure 2 Schematic diagram from another perspective, the outdoor unit of this embodiment includes:

[0034] The first housing 1 includes a first chamber 11 and a second chamber 12. Figure 2As shown, the first chamber 11 is roughly rectangular, the second chamber 12 is roughly "L"-shaped, the second chamber 12 partially extends below the first chamber 11, and the second chamber 12 includes a vertical area and a transverse area. The vertical area can be an area extending in the vertical direction, and the transverse area can be an area extending in the horizontal direction. Figure 2 With reference to the orientation shown, the first chamber 11 is disposed on the right side, the vertical area of ​​the second chamber 12 is disposed on the left side, and the lateral area of ​​the second chamber 12 is disposed on the right side.

[0035] The outdoor heat exchanger 2 is arranged in the first shell 1 and is located in the first chamber 11. Specifically, the outdoor heat exchanger 2 is a fin heat exchanger, which includes a fan blade 22, a fan motor 21 and a fin heat exchanger 23 arranged in the first chamber 11. The fin heat exchanger 23 is arranged on one side of the fan blade 22, and the output end of the fan motor 21 is transmission-connected to the fan blade 22. The first chamber 11 is connected to the external environment, and the air outside the first shell 1 can enter the first chamber 11. The outdoor heat exchanger 2 is used to complete heat exchange with the outside air. Specifically, the fan motor 21 drives the fan blade 22 to rotate to accelerate the air flow, and draws the outside air and the fin heat exchanger 23 for heat exchange, so that the refrigerant located inside the fin heat exchanger 23 absorbs the heat of the outside air.

[0036] The water tank 3 is arranged in the first shell 1 and is located in the vertical area of ​​the second chamber 12. The water tank 3 is arranged in parallel with the outdoor heat exchanger 2. Specifically, Figure 2 As shown, the water tank 3 is vertically installed on the left side of the outdoor heat exchanger 2. The water tank 3 occupies most of the space in the vertical area of ​​the second chamber 12. Specifically, in order to protect the water tank, a sheet metal part is provided around one side of the water tank 3 of the outdoor unit, so that the side close to the water tank 3 does not have air intake, so the water tank 3 is separately arranged in the vertical area of ​​the second chamber 12, and the vertical area of ​​the second chamber 12 does not need to reserve air intake space, thereby reducing the space required for installation. Since there is no reserved air intake space on one side of the water tank 3, personnel do not need to carry out maintenance work on one side of the water tank 3.

[0037] The controller 4 is disposed in the first housing 1 and is located in the lateral region of the second chamber 12 , which is located below the first chamber 11 accommodating the outdoor heat exchanger 2 . That is, the controller 4 is disposed below the outdoor heat exchanger 2 .

[0038] like Figure 1 and Figure 2As shown, the first shell 1 has a length direction, a width direction and a height direction. The length direction corresponds to the left and right direction marked in the figure, the width direction corresponds to the front and back direction marked in the figure, and the height direction corresponds to the up and down direction marked in the figure. Among them, the controller 4 is far away from the water tank 3 and is located on one side of the width direction of the first shell 1, and is approximately located at the same position as the outdoor heat exchanger 2 in the length direction of the first shell 1. That is, the controller 4 and the water tank 3 are far away from each other in the length direction of the first shell 1 in the first shell 1, and can be located at both ends of the length direction of the first shell 1 respectively. That is, the controller 4 is set at one end of the length direction of the first shell 1.

[0039] Other equipment components of the outdoor unit (such as a compressor 55, a hot water jacketed heat exchanger (not shown in the figure), a hot water jacketed heat exchanger water pump 54, an indoor heat exchanger 51, an indoor heat exchanger water pump (not shown in the figure), an expansion water tank (not shown in the figure), an expansion valve (not shown in the figure), a liquid storage tank 52, a gas-liquid separator 53, a three-way valve (not shown in the figure), etc.) are also arranged in the lateral area of ​​the second chamber 12.

[0040] When installing the outdoor unit on the installation platform, due to the design differences of the installation platform for installing the outdoor unit, there may be one side that is not ventilated, or the distance between the wall of the installation platform and the outdoor unit does not meet the installation parameters. In this application, the water tank side of the outdoor unit does not need to be heat exchanged. Therefore, the water tank 3 side of the second chamber 12 can be installed on the non-ventilated side, and the outdoor heat exchanger 2 can be separately set on the ventilation side (the side of the outdoor heat exchanger 2) to adapt to a variety of different installation platforms. The controller 4 is located on one side of the width direction of the first shell 1, that is, the ventilation side, and is set away from the side of the water tank 3. When the outdoor unit is installed in the form of the side of the water tank 3 against the wall, the side close to the water tank 3 is the non-ventilated side. At this time, the maintenance of the equipment can be completed through the controller 4 close to the side of the outdoor heat exchanger 2 (the ventilation side at this time), thereby improving the maintainability of the equipment.

[0041] Since the controller 4 is located below the outdoor heat exchanger 2, during installation, the installer only needs to connect the cables to the wiring terminals (not shown in the figure) of the controller 4 below the outdoor heat exchanger 2; during maintenance, the maintenance can be completed by replacing the corresponding parts of the controller 4 below the outdoor heat exchanger 2. Since the controller 4 is far away from the side of the water tank 3 and below the outdoor heat exchanger 2, it is beneficial to improve the convenience of installation and maintenance of the outdoor unit.

[0042] like Figure 2As shown, the water tank 3 is arranged in the upper space of the vertical area of ​​the second chamber 12, and is roughly in the same horizontal direction as the outdoor heat exchanger 2. Other equipment components of the outdoor unit (such as the compressor 55, the hot water jacket heat exchanger, the hot water jacket heat exchanger water pump 54, the indoor heat exchanger 51, the indoor heat exchanger water pump, the expansion tank, the expansion valve, the liquid storage tank 52, the gas-liquid separator 53, the three-way valve, etc.) are arranged in the lower space of the second chamber 12 (near the bottom of the first shell 1). Specifically, when the outdoor unit operates in the partial recovery or full heat recovery mode, the refrigerant from the compressor 55 will exchange heat with water in the hot water jacket heat exchanger to prepare hot water, and the prepared hot water will enter the water tank 3. When the user needs hot water, the hot water in the water tank 3 can be transported to the corresponding equipment.

[0043] When carrying out maintenance work, it is necessary to connect the controller 4 with other equipment components of the outdoor unit. The controller 4 is closer to the bottom of the first shell 1 than the outdoor heat exchanger 2, and is closer to other equipment components of the outdoor unit, which facilitates the connection of the controller 4 with other equipment components of the outdoor unit.

[0044] In addition, the controller 4 can be connected to the first chamber 11. When the outdoor heat exchanger 2 is running, the outdoor heat exchanger 2 draws outside air into the first chamber 11 and the fin heat exchanger 23 for heat exchange. At this time, the first chamber 11 is in a negative pressure state, and the controller 4 is in a positive pressure state. Therefore, the air in the controller 4 will be sucked into the first chamber 11. Thus, the negative pressure generated in the first chamber 11 when the outdoor heat exchanger 2 is operating normally can be used to dissipate heat and cool the controller 4. Heat dissipation and cooling of the controller 4 can be achieved without the need for an additional cooling device, making the structural layout of the outdoor unit more compact and reasonable.

[0045] like Figure 2 In the illustrated embodiment, the controller 4 includes a second housing 40 and an electrical component 41. The second housing 40 defines a receiving area, and the electrical component 41 is placed in the receiving area. Specifically, the electrical component 41 may include a main control board (not shown in the figure), a relay (not shown in the figure), a reactance (not shown in the figure), etc. The main control board can send a signal to a device such as a compressor 55 to drive the start and stop of the corresponding device.

[0046] Furthermore, if Figure 3 and Figure 4In the illustrated embodiment, the controller 4 also includes a heat dissipation element 42 disposed in the receiving area, and the heat dissipation element 42 may be a heat dissipation aluminum sheet. Specifically, the heat dissipation element 42 may be fixed to the electrical component 41. When the electrical component 41 is in operation, the heat generated by the operation of the electrical component 41 is transferred to the heat dissipation element 42, and the heat is dissipated through the heat dissipation element 42. The first chamber 11 may be connected to the receiving area so that the outdoor heat exchanger 2 is connected to the receiving area. When the outdoor heat exchanger 2 is operating normally, the first chamber 11 is in a negative pressure state, and the heat dissipation element 42 in the receiving area is in a positive pressure state, and the air in the receiving area will be sucked into the first chamber 11 in a negative pressure state to achieve heat dissipation of the heat dissipation element 42, so that the heat dissipation element 42 dissipates heat through the outdoor heat exchanger 2 in the first chamber 11.

[0047] like Figure 5 and Figure 6 In the illustrated embodiment, the second housing 40 includes a first substrate 401 and a second substrate 402 connected to each other, and the receiving area includes a first receiving area and a second receiving area. The first substrate 401 defines a first receiving area, and the electrical component 41 is placed in the first receiving area. A through hole 43 for the heat dissipation element 42 to pass through is provided on the first substrate 401. The second substrate 402 is connected to the first substrate 401 and surrounds the through hole 43, defining a second receiving area, and the heat dissipation element 42 is placed in the second receiving area. The heat dissipation element 42 can be connected to the main control board of the electrical component 41. The second receiving area is respectively connected to the outdoor heat exchanger 2 in the first chamber 11 and the first receiving area. That is, the first receiving area, the second receiving area and the outdoor heat exchanger 2 in the first chamber 11 are connected in sequence. Specifically, the area of ​​the through hole 43 can be roughly equivalent to the maximum area of ​​the heat dissipation element 42, and the volume of the second receiving area can be roughly equivalent to the volume of the heat dissipation element 42. The second substrate 402 and the first substrate 401 may be connected in a detachable manner or in a non-detachable manner, and the second substrate 402 and the first substrate 401 may also be an integral structure formed in one piece.

[0048] like Figure 5 and Figure 6 As shown, the first substrate 401 has an open end 401a in the first receiving area, and the open end 401a of the first substrate 401 faces away from the water tank 3, and the electrical components 41 are all exposed to the open end 401a, so that personnel can use the electrical components 41 to perform maintenance work on the side away from the water tank 3. Since the side close to the water tank 3 does not need to be air-intake, the left part of the second chamber 12 does not need to reserve air intake space and maintenance space, and maintenance work only needs to be carried out on the side away from the water tank 3. Therefore, the volume of the left part of the second chamber 12 can be designed to be small enough, and can be slightly larger than the volume of the water tank 3, and the layout inside the shell is reasonably optimized.

[0049] like Figure 3 to Figure 5 In the illustrated embodiment, the heat dissipation element 42 includes heat dissipation fins. Of course, the heat dissipation element 42 may also include other heat dissipation structures, such as heat pipes.

[0050] like Figure 2 to Figure 5 In the illustrated embodiment, the outdoor unit further includes a first partition 161 and a second partition 162 disposed inside the first housing 1, and the first partition 161 and the second partition 162 together define a first chamber 11 and a second chamber 12. The first partition is located between the controller 4 and the outdoor heat exchanger 2, and is used to separate the controller 4 and the outdoor heat exchanger 2. The second partition is located between the water tank 3 and the outdoor heat exchanger 2, and is used to separate the water tank 3 and the outdoor heat exchanger 2. Figure 2 to Figure 5 With reference to the orientation in FIG. 1 , the water tank 3 is located on the left side of the second partition 162, and the outdoor heat exchanger 2 and the controller 4 are located on the right side of the second partition 162. The controller 4 and the outdoor heat exchanger 2 are located on the upper and lower sides of the first partition 161, respectively.

[0051] Furthermore, if Figure 4 As shown, in this embodiment, a vent 60 is provided on the first partition 161, and the controller 4 is connected to the outdoor heat exchanger 2 in the first chamber 11 through the vent 60. Specifically, the vent 60 is connected to the second receiving area where the heat dissipation element 42 is located. The heat dissipation element 42 is arranged between the vent 60 and the electrical component 41. That is, the heat dissipation element 42 is closer to the vent 60 than the electrical component 41, and the air around the electrical component 41 flows through the heat dissipation element 42 in turn, and the vent 60 enters the outdoor heat exchanger 2 in the first chamber 11 to complete heat exchange with the outside air. Of course, in other embodiments, the heat dissipation element 42 can also be arranged at other positions.

[0052] refer to Figures 1 to 5 In the embodiment shown, the first partition 161 is arranged horizontally and can be used as a water receiving tray. The second partition 162 is a middle partition arranged vertically.

[0053] Specifically, the first partition 161 is located below the outdoor heat exchanger 2, and the first partition 161 is located above the controller 4. By setting the first partition 161, the outdoor heat exchanger 2 and the controller 4 are separated so that condensed water of the outdoor heat exchanger 2 cannot fall into the controller 4, thereby improving the safety performance of the controller 4.

[0054] like Figures 1 to 5In the illustrated embodiment, the first housing 1 includes a top plate 13 located on the upper side, a bottom plate 14 located on the lower side, and a side plate 15 connected between the top plate 13 and the bottom plate 14. The top plate 13, the bottom plate 14, and the side plate 15 together enclose a receiving cavity. The "bottom of the first housing 1" mentioned above is also the position of the bottom plate 14. That is, the controller 4 is closer to the bottom plate 14 than the outdoor heat exchanger 2.

[0055] The second shell 40 can be connected to the first partition plate 161, the bottom plate 14 and the side plate 15 respectively, or can be connected to at least one of the first partition plate 161, the bottom plate 14 and the side plate 15, so that the controller 4 is connected to the first shell 1 and fixed.

[0056] like Figure 5 In the illustrated embodiment, the outdoor unit further includes four columns 17 disposed in the second chamber 12 of the first housing 1, and each column 17 is connected between the bottom plate 14 of the first housing 1 and the first partition plate 161. The second housing 40 of the controller 4 is connected to two of the columns 17. However, the number of the columns 17 is not limited to four, and the controller 4 is connected to at least one column 17.

[0057] Preferably, the four columns 17 are respectively arranged corresponding to the four corners of the first partition 161, supported between the first partition 161 and the bottom plate 14, and strengthen the overall rigidity of the first shell 1. Figure 5 In the illustrated embodiment, two of the four columns 17 are relatively close to the water tank 3, and the other two columns 17 are relatively far away from the water tank 3. The second housing 40 is connected to the two columns 17 far away from the water tank 3, and the opening faces the side far away from the water tank 3. Thus, the second housing 40 is fixedly connected to the columns 17, which can increase the stability of the controller 4 and also facilitate the maintenance personnel to perform maintenance on the side far away from the water tank 3.

[0058] like Figure 1 In the illustrated embodiment, a wiring hole 61 is provided on the first housing 1, and the wiring hole 61 is used to connect the cable outside the receiving cavity of the first housing 1 to the controller 4. Specifically, a wiring hole 61 is provided on the side panel 15 close to the controller 4 and parallel to the second housing 40, through which the cable is connected to the wiring terminal of the controller 4 to provide power for the operation of the outdoor unit.

[0059] The utility model also provides an air energy heat pump system, which includes an outdoor unit of any embodiment of the utility model, and the air energy heat pump system may also include a fan coil unit and / or a floor heating device. For example, the air energy heat pump system is an air energy heat pump dual-generation or tri-generation system. Preferably, the fan coil unit is located indoors, and the fan coil unit is an indoor side heat exchanger 51.

[0060] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An outdoor unit, characterized in that: include: A first housing (1); An outdoor heat exchanger (2) is located inside the first shell (1); A water tank (3) is located in the first shell (1), and the water tank (3) is arranged in parallel with the outdoor heat exchanger (2); A controller (4) is located in the first shell (1). The controller (4) is arranged below the outdoor heat exchanger (2). The controller (4) is away from one side of the water tank (3). The controller (4) is located on one side in the width direction of the first shell (1).

2. The outdoor unit according to claim 1, characterized in that: The controller (4) comprises a second shell (40) and an electrical component (41); the second shell (40) defines a receiving area, and the electrical component (41) is placed in the receiving area.

3. The outdoor unit according to claim 2, characterized in that: The controller (4) further comprises a heat dissipation element (42) arranged in the accommodation area, the heat dissipation element (42) being fixed to the electrical component (41), the electrical component (41) dissipating heat through the heat dissipation element (42), and the outdoor heat exchanger (2) being connected to the accommodation area.

4. The outdoor unit according to claim 3, characterized in that: The second shell (40) comprises a first substrate (401) and a second substrate (402) connected to each other, and the receiving area comprises a first receiving area and a second receiving area; The first substrate (401) defines the first receiving area, and the electrical component (41) is placed in the first receiving area; The first substrate (401) is provided with a through hole (43) for the heat dissipation element (42) to pass through; the second substrate (402) is connected to the first substrate (401) and surrounds the through hole (43); the second substrate (402) and the first substrate (401) together define a second receiving area, and the heat dissipation element (42) is placed in the second receiving area.

5. The outdoor unit according to claim 4, characterized in that: The first substrate (401) has an open end (401a) on a side away from the second substrate (402), and the open end (401a) faces away from the water tank (3).

6. The outdoor unit according to claim 1, characterized in that: The outdoor unit further comprises a first partition plate (161) and a second partition plate (162) arranged inside the first shell (1); The first partition is located between the controller (4) and the outdoor heat exchanger (2) and is used to separate the controller (4) and the outdoor heat exchanger (2); The second partition is located between the water tank (3) and the outdoor heat exchanger (2) and is used to separate the water tank (3) and the outdoor heat exchanger (2).

7. The outdoor unit according to claim 6, characterized in that: The first partition plate (161) is provided with a ventilating opening (60), and the controller (4) is connected to the outdoor heat exchanger (2) through the ventilating opening (60).

8. The outdoor unit according to claim 6, characterized in that: The outdoor unit further comprises a plurality of columns (17) arranged in the first shell (1), each of the columns (17) being connected between the first shell (1) and the first partition (161); and the controller (4) is connected to at least one of the columns (17).

9. The outdoor unit according to claim 1, characterized in that: The first shell (1) is provided with a wiring hole (61), and the wiring hole (61) is used for connecting a cable outside the first shell (1) to the controller (4).

10. An air energy heat pump system, characterized in that: The outdoor unit comprises the outdoor unit according to any one of claims 1 to 9.

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