Outdoor unit

Abstract

The utility model relates to an outdoor unit which comprises a water storage device. The case defines an accommodating space for accommodating the water storage device, and at least one corner space is arranged in the accommodating space and on the periphery of the water storage device; the heat recovery heat exchanger extends in the corner space in the axial direction of the water storage device. According to the outdoor unit, at least part of the heat recovery heat exchanger is installed in at least one corner space of the containing space of the machine box and extends in the axial direction of the water storage device, so that the hot water capacity can be improved by selecting the large-size water storage device, or the size of the water storage device is set to be smaller under the condition that the same water volume is guaranteed; on the other hand, corner space is fully utilized, and the size of the outdoor unit can be prevented from being increased.

Description

Technical Field

[0001] The utility model relates to the field of heating and ventilation, in particular to an outdoor unit. Background Art

[0002] With the continuous advancement of science and technology, people have higher and higher requirements for living environment. Outdoor units in related technologies are favored by more and more manufacturers and users because they can solve the energy crisis to a certain extent. In the outdoor unit of the prior art, the water storage device usually has two installation methods. One is that the outdoor unit and the water storage device are set separately, which has the defect of low integration; the other is that the water storage device is built into the chassis of the outdoor unit. Since the chassis needs to install other components in addition to the water storage device, it is necessary to limit the size of the water storage device. If a large-sized water storage device is selected, the overall volume of the outdoor unit will increase, thereby making the outdoor unit occupy a large space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an improved outdoor unit.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct an outdoor unit, comprising:

[0005] Water storage devices;

[0006] A chassis, defining a housing space for housing the water storage device, wherein the housing space has at least one corner space on the periphery of the water storage device;

[0007] A heat recovery heat exchanger extends in the corner space along the axial direction of the water storage device.

[0008] In some embodiments, the water storage device includes a bottom end and a top end that are arranged opposite to each other along its axial direction;

[0009] The heat recovery heat exchanger includes at least one heat exchange tube, at least a portion of the heat exchange tube extends between the bottom end and the top end to form a straight portion, and the straight portion is installed in the corner space.

[0010] In some embodiments, the heat exchange tube is bent at the top end to form a bent portion connected to the straight portion, and the bent portion is installed corresponding to one of the corner spaces.

[0011] In some embodiments, the number of corner spaces is four;

[0012] There are at least two bending parts.

[0013] In some embodiments, the outdoor unit further includes a water pump, which is disposed below the water storage device and is used to transport water in the water storage device to the heat recovery heat exchanger for heat exchange.

[0014] In some embodiments, the water storage device is cylindrical.

[0015] In some embodiments, a first cavity and a second cavity are formed inside the chassis;

[0016] The first cavity forms the accommodating space.

[0017] In some embodiments, the height of the first cavity is greater than the height of the second cavity, and the height of the water storage device is greater than the height of the second cavity.

[0018] In some embodiments, a compressor and / or a liquid storage tank is installed in the first cavity and below the water storage device;

[0019] And / or, a plate heat exchanger, a plate heat exchanger water pump, and / or an expansion tank are arranged in the first cavity and below the water storage device.

[0020] In some embodiments, the chassis is further provided with a partition and a water collecting pan; the length of the partition is smaller than the height of the chassis so as to divide the internal space of the chassis into the first cavity and the second cavity; the water collecting pan is connected to the partition and cooperates with the partition to define the second cavity; the outdoor unit also includes an electrical control box, which is arranged in the first cavity and separated from the second cavity by the water collecting pan.

[0021] The implementation of the outdoor unit of the utility model has the following beneficial effects: the outdoor unit installs at least part of the heat recovery heat exchanger in at least one corner space of the accommodating space of the chassis and extends along the axial direction of the water storage device, thereby selecting a large-sized water storage device to increase the hot water capacity, or setting the water storage device to be smaller while ensuring the same water volume. On the other hand, the corner space is fully utilized, thereby avoiding increasing the volume of the outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0023] Figure 1 It is a schematic diagram of the structure of the outdoor unit in some embodiments of the utility model;

[0024] Figure 2 yes Figure 1 A partial structural diagram of the outdoor unit is shown;

[0025] Figure 3 yes Figure 2 The schematic diagram of the structure of the outdoor unit from another angle is shown;

[0026] Figure 4 yes Figure 2 Schematic diagram of the partial structure of the heat recovery heat exchanger of the outdoor unit shown. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0028] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0030] Figure 1 to Figure 2Some preferred embodiments of the outdoor unit of the utility model are shown. The outdoor unit is used for HVAC equipment, specifically, it can be applied to trigeneration or binary generation equipment, and has the advantages of reasonable layout, compact structure, and miniaturization design.

[0031] like Figures 1 to 3 As shown, in some embodiments, the outdoor unit may include a chassis 1 and a water storage device 2. The chassis 1 may be used to accommodate the water storage device 2 and other functional components. In some embodiments, the water storage device 2 may be a water tank, which may be used to store domestic hot water or water that needs heat exchange.

[0032] In some embodiments, the chassis 1 may include a first end plate 11, a second end plate 12, and a panel structure 13. In some embodiments, the first end plate 11 and the second end plate 12 may be arranged opposite to each other. The panel structure 13 may be arranged between the first end plate 11 and the second end plate 12. The panel structure 13 may be connected and fixed to the first end plate 11 and the second end plate 12 by setting a screw assembly. In some embodiments, the chassis 1 may also include a side plate 14, a back plate 15, a partition 16, a water receiving tray 17, etc. The side plate 14 may be arranged between the first end plate 11 and the second end plate 12 and located on one side of the first end plate 11 and the second end plate 12. The back plate 15 is arranged between the first end plate 11 and the second end plate 12 and is arranged opposite to a part of the panel structure 13. The first end plate 11, the second end plate 12, the panel structure 13, the side plate 14, and the back plate 15 may define a receiving chamber 10 for accommodating the water storage device 2 and other functional components.

[0033] The partition 16 can be arranged in the chassis 1 and connected to the panel structure 13 and the back plate 15, and can be used to divide the internal space in the chassis 1 into a first cavity 10a and a second cavity 10b in the horizontal direction. That is, the accommodating cavity 10 is divided into a first cavity 10a and a second cavity 10b. The first cavity 10a is at least partially arranged side by side with the second cavity 10b in the horizontal direction, wherein the first cavity 10a defines an accommodating space 100 for accommodating the water storage device 2. The second cavity 10b can be used to accommodate an outdoor heat exchanger. The water receiving tray 17 is arranged in the chassis 1 and is arranged parallel to the first end plate 11, and its length is less than the length of the first end plate 11. It is connected to the partition 16 and jointly defines the second cavity 10b, so that the height of the first cavity 10a can be greater than the height of the second cavity 10b. The first cavity 10a may be roughly L-shaped, and the portion thereof that exceeds the second cavity 10b extends to the bottom of the second cavity 10b, that is, between the water receiving tray 17 and the first end plate 11. In some embodiments, the cross section of the first cavity 10a may be roughly rectangular, that is, the accommodating space 100 has four corner spaces 102, and the four corner spaces 102 are distributed on the periphery of the water storage device 2. Of course, it can be understood that in some other embodiments, the first cavity 10a is not limited to having four corner spaces 102, and it may also have at least one corner space 102. The second cavity 10b may be roughly rectangular.

[0034] In some embodiments, the panel structure 13 may include a first panel 131, a second panel 132, a decorative member 133, and a grille plate 134. The first panel 131 and the second panel 132 may be spliced ​​to form a large panel. The first panel 131 is arranged corresponding to the first cavity 10a, and it defines the first cavity 10a with the first end plate 11, part of the second end plate 12, and the partition 16. The second panel 132 may be arranged corresponding to the second cavity 10b, and it defines the second cavity 10b with the partition 16, part of the second end plate 12, and part of the side plate 14. The decorative member 133 is arranged at the joint of the first panel 131 and the second panel 132, which can cover the connection structure between the first panel 131 and the second panel 132, play a decorative role, and make the overall appearance more beautiful. In some embodiments, the first panel 131 and the second panel 132 can be fixed by snapping, and the decorative member 133 can be snapped with the first panel 131 and / or the second panel 132, so that the three can be connected together, and the screw installation process can be saved, the installation process of the panel structure 13 can be simplified, and the installation cost can be reduced. The second panel 132 can be provided with an air guide port 1321, and the air guide port 1321 can be connected to the second cavity 10b to guide the wind in the second cavity 10b out. The grille plate 134 can be provided on the second panel 132 and cover the air guide port 1321.

[0035] In some embodiments, the water storage device 2 may be vertically arranged in the first cavity 10a and have an axial direction. The axial direction of the water storage device 2 is in the same direction as the height direction of the first cavity 10a. In some embodiments, the water storage device 2 may be a columnar structure, specifically, it may be cylindrical, and its cross section may be roughly circular. In some embodiments, the water storage device 2 has a bottom end 2a and a top end 2b arranged opposite to each other in the axial direction, wherein the bottom end 2a may be arranged toward the first end plate 11, and the interval between the bottom end 2a and the first end plate 11 forms an installation space 101, and the installation space 101 may be located below the bottom end 2a of the water storage device 2 and extend between the water receiving tray 17 and the first end plate 11. The top end 2b may be arranged toward the second end plate 12. The water storage device 2 may include a columnar inner tank and a heat preservation structure sleeved on the outer periphery of the inner tank, wherein the inner tank is a hollow structure, and the interior can be used for water storage, such as hot water. In some embodiments, the inner tank may be made of stainless steel or duplex steel. The heat preservation structure can be used to keep the water in the inner tank warm. In some embodiments, the heat-insulating structure may be heat-insulating cotton. Of course, it is understandable that in some other embodiments, the water storage device 2 may also be a single-layer structure.

[0036] In some embodiments, the outdoor unit may further include an outdoor heat exchanger 3, which may be disposed in the second cavity 10b and may include a fan and a fin heat exchanger. The fan may be disposed in a one-to-one correspondence with the air guide port 1321. When the outdoor unit is heating, the fan is used to extract the external air and the fin heat exchanger for heat exchange, so that the refrigerant inside the fin heat exchanger absorbs the heat of the external air. When cooling, the fan is used to blow the refrigerant heat released by the fin heat exchanger into the outdoor air.

[0037] like Figures 2 to 4 As shown, in some embodiments, the outdoor unit may further include a heat recovery heat exchanger 4, which may be disposed in the accommodating space 100 and located at the periphery of the water storage device 2. Specifically, the heat recovery heat exchanger 4 is located between the water storage device 2 and the first panel 131, and in some other embodiments, it may also be located between the water storage device 2 and the back plate 15. The heat recovery heat exchanger 4 is at least partially installed in the corner space 102, thereby making full use of the corner space 102 in the chassis 1, and it may be connected to the water storage device 2 to transport hot water generated by heat exchange to the water storage device 2.

[0038] In some embodiments, the heat recovery heat exchanger 4 may be at least partially installed in at least one corner space 102 and at least partially extend along the axial direction of the water storage device 2. The heat recovery heat exchanger 4 includes at least one heat exchange tube 41, which may first extend from the bottom end 2a to the top end 2b, then bend and extend along the circumference of the water storage device 2 and then extend from the top end 2b to the bottom end 2a, and may be bent back and forth multiple times, and the specific number of bends may be selected according to actual conditions. In some embodiments, the heat exchange tube 41 may include at least two straight portions 411 and at least one bent portion 412. Each straight portion 411 may extend between the bottom end 2a and the top end 2b and be installed in the corner space 102, and the bent portion 412 may be formed at the top end of the water storage device 2 and connected to the straight portion 411. Specifically, in some embodiments, there may be two straight portions 411, and there may also be two bent portions 412, and both bent portions 12 are arranged at the top end 2b. One of the straight portions 412 extends from the bottom end 2a to the top end 2b and is connected to the bent portion 412. The bent portion 412 is connected to another bent portion 412 by setting a connecting portion 413. The other bent portion 412 can be connected to another straight portion 411. The other straight portion 411 can extend from the top end 2b to the bottom end 2a. The connecting portion 413 is arranged higher than the top end 2a of the water storage device 2, is located between two adjacent bent portions 412, and is connected to the two adjacent bent portions 412.

[0039] In some other embodiments, the straight portion 411 is not limited to two, but may be four, and the four straight portions 411 may be formed on the front and rear sides of the water storage device 2, wherein two straight portions 411 may be located between the water storage device 2 and the first panel 131, and the other two straight portions 411 may be disposed between the water storage device 2 and the back plate 15. In some embodiments, the straight portion 411 may be disposed in at least one corner space 102. Specifically, there may be four straight portions 411, which may be disposed one by one in each corner space 102 of the first cavity 10a, thereby making full use of the four corner spaces 102, thereby avoiding an additional increase in the volume of the outdoor unit.

[0040] In some embodiments, the host may further include a water pump 5, which is disposed in the installation space 101 below the water storage device 2 and is connected to the heat recovery heat exchanger 4 and the water storage device 2. Specifically, the water pump 5 may be connected to the water inlet of the heat recovery heat exchanger 4 and to the water return port of the water storage device 2, and may be used to transport the water in the water storage device 2 to the heat recovery heat exchanger 4 for heat exchange. In some other embodiments, the water pump 5 may also be connected to the water outlet of the heat recovery heat exchanger 4 and to the hot water inlet and outlet of the water storage device 2. By placing the water storage device 2 below, the bottom space of the water storage device 2 is effectively utilized.

[0041] In some embodiments, the outdoor unit may further include a compressor (not shown), which may be installed in the installation space 101 below the water storage device 2 and separated from the second cavity 10b by the water receiving tray 17, and may be located on the same side as the second cavity 10b. The compressor (not shown) may be connected to the heat recovery heat exchanger 4. When the outdoor unit operates in a partial heat recovery or full heat recovery mode, the refrigerant from the compressor (not shown) may exchange heat with water in the heat recovery heat exchanger 4 to prepare hot water, and the prepared hot water may enter the water storage device 2. When the user needs hot water, the hot water in the water storage device 2 may be delivered to the corresponding equipment.

[0042] In some embodiments, the host may further include a liquid storage tank 6, which may be installed in the installation space 101 and separated from the second cavity 10b by a water receiving tray 17, and the liquid storage tank 6 and the second cavity 10b may be located on the same side.

[0043] In some embodiments, the outdoor unit may further include a plate heat exchanger 7, which may be a fluorine-water plate heat exchanger. The plate heat exchanger 7 may be installed in the installation space 101 below the water storage device 2, and the plate heat exchanger 7 and the second cavity 10b may be located on the same side. In some embodiments, the plate heat exchanger 7 may be a fluorine-water plate heat exchanger. In some embodiments, the outdoor unit may further include a plate heat exchanger water pump and / or an expansion tank. Of course, it is understandable that in some other embodiments, the plate heat exchanger 7, the plate heat exchanger water pump, and / or the expansion tank may also be external.

[0044] In some embodiments, the outdoor unit further includes an electric control box 8, which is disposed in the first cavity 10a and can be located on the same side as the second cavity 10b. The electric control box 8 is provided with a main control board, relays, reactance and other electrical components. The electric control box 8 is fixed to the inner side of the side plate 14 and is fixed to the two columns of the side plate 14. The electric control box 8 is separated from the second cavity 10b by a water receiving tray 17. Such a configuration increases the stability of the electric control box.

[0045] 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 belong to the scope covered by the claims of the utility model.

Claims

1. An outdoor unit, characterized in that: include: Water storage device (2); A case (1) defines a housing space (100) for housing the water storage device (2), wherein the housing space (100) has at least one corner space (102) on the periphery of the water storage device (2); A heat recovery heat exchanger (4) extends in the corner space (102) along the axial direction of the water storage device (2).

2. The outdoor unit according to claim 1, characterized in that: The water storage device (2) comprises a bottom end (2a) and a top end (2b) which are arranged opposite to each other; The heat recovery heat exchanger (4) comprises at least one heat exchange tube (41), wherein at least a portion of the heat exchange tube (41) extends between the bottom end (2a) and the top end (2b) to form a straight portion (411), and the straight portion (411) is installed in the corner space (102).

3. The outdoor unit according to claim 2, characterized in that: The heat exchange tube (41) is bent at the top end (2b) to form a bent portion (412) connected to the straight portion (411).

4. The outdoor unit according to claim 3, characterized in that: There are four corner spaces (102) and at least two bending portions (412).

5. The outdoor unit according to claim 1, characterized in that: The outdoor unit further comprises a water pump (5), which is arranged below the water storage device (2) and is used to transport water in the water storage device (2) to the heat recovery heat exchanger (4) for heat exchange.

6. The outdoor unit according to claim 1, characterized in that: The water storage device (2) is cylindrical.

7. The outdoor unit according to claim 1, characterized in that: A first cavity (10a) and a second cavity (10b) are formed inside the chassis (1); The first cavity (10a) forms the accommodating space (100).

8. The outdoor unit according to claim 7, characterized in that: The height of the first cavity (10a) is greater than the height of the second cavity (10b), and the height of the water storage device (2) is greater than the height of the second cavity (10b).

9. The outdoor unit according to claim 7, characterized in that: A compressor and / or a liquid storage tank (6) is installed in the first cavity (10a) and below the water storage device (2); And / or, a plate heat exchanger (7), a plate heat exchanger water pump, and / or an expansion tank are arranged in the first cavity (10a) and below the water storage device (2).

10. The outdoor unit according to claim 7, characterized in that: The case (1) is further provided with a partition (16) and a water receiving tray (17); the length of the partition (16) is less than the height of the case (1) so as to divide the internal space of the case (1) into the first cavity (10a) and the second cavity (10b); the water receiving tray (17) is connected to the partition (16) and cooperates with the partition (16) to define the second cavity (10b); The outdoor unit further comprises an electric control box (8), which is arranged in the first cavity (10a) and is separated from the second cavity (10b) by the water receiving tray (17).

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