Heat pump outdoor unit and heat pump equipment

Abstract

The utility model belongs to the technical field of heat pumps, and particularly relates to a heat pump outdoor unit and heat pump equipment. The heat pump outdoor unit comprises a shell and a heat exchange part, the shell is provided with a heat exchange cavity, a notch used for communicating the heat exchange cavity with the external environment is formed in the rear side of the shell, and the heat exchange part is arranged in the heat exchange cavity and corresponds to the notch. The shell is provided with a plurality of air inlets communicating with the heat exchange cavity, and the multiple air inlets are distributed in the peripheral side of the heat exchange piece in the front-back direction of the shell. The heat pump outdoor unit is used for solving the problem that the heat exchange amount is affected due to the fact that the air inlet amount of the edge area of the heat exchanger of the outdoor unit is small.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heat pumps, and particularly relates to a heat pump outdoor unit and a heat pump device. BACKGROUND

[0002] The heat pump device is a device capable of efficiently utilizing environmental heat energy, and is widely applied to air conditioning, hot water supply and floor heating systems in families and commercial places.

[0003] The heat pump device usually has an outdoor heat exchanger which is arranged in the outdoor unit in the outdoor. The outdoor unit exchanges heat with air mainly through the heat exchanger, so as to achieve the effect of heating or cooling. In the related art, the heat exchanger is arranged in the outdoor unit shell, external air enters the shell from the rear side under the action of the fan, passes through the heat exchanger and exchanges heat with the heat exchanger, and then flows out through the air outlet on the front side of the shell.

[0004] The air volume is large at the position corresponding to the heat exchanger and the fan, while the air volume is small at the edge region of the heat exchanger, which affects the heat exchange amount. CONTENT OF THE INVENTION

[0005] The application provides a heat pump outdoor unit and a heat pump device, so as to solve the problem that the air volume is small at the edge region of the heat exchanger of the outdoor unit, which affects the heat exchange amount.

[0006] In a first aspect, the application provides a heat pump outdoor unit, comprising a shell and a heat exchange member, the shell is provided with a heat exchange cavity, the rear side of the shell is provided with a gap for connecting the heat exchange cavity with the external environment, the heat exchange member is arranged in the heat exchange cavity, and the heat exchange member corresponds to the gap.

[0007] The shell is provided with a plurality of air inlets communicating with the heat exchange cavity, and in the front-rear direction of the shell, the plurality of air inlets are distributed on the lateral side of the heat exchange member.

[0008] In a possible design, the shell comprises a top plate, the plurality of air inlets comprise a first air inlet, the first air inlet is arranged on the top plate, and the first air inlet is located at one end of the top plate close to the gap.

[0009] In a possible design, the shell comprises a bottom plate, the plurality of air inlets comprise a second air inlet, the second air inlet is arranged on the bottom plate, and the second air inlet is located below the heat exchange member.

[0010] In a possible design, one side of the shell along the width direction comprises a side plate, the heat exchange member is close to the side plate, the plurality of air inlets comprise a third air inlet, the third air inlet is arranged on the side plate, and the third air inlet is located on one side of the heat exchange member.

[0011] In a possible design, the first air inlet is provided with a flow guide.

[0012] In the front-rear direction of the shell, a first end of the flow guide is arranged close to the air inlet, and a second end of the flow guide extends towards the heat exchange element for guiding the air flow of the air inlet to the heat exchange element.

[0013] In a possible design, in the front-rear direction of the shell, the first end of the flow guide is connected to the inner wall of the air inlet away from the notch.

[0014] The flow guide is an arc-shaped element, and in the front-rear direction of the shell, a concave surface of the flow guide faces the heat exchange element, and the concave surface is used for guiding the air flow from the first air inlet to the heat exchange element.

[0015] In a possible design, each air inlet includes a plurality of openings, and the plurality of openings are arranged at intervals along the circumferential side of the heat exchange element.

[0016] In a possible design, the heat exchange element includes a plurality of heat exchangers connected in sequence, and in the front-rear direction of the shell, the plurality of heat exchangers are arranged in parallel and at intervals.

[0017] And / or, the distance between two adjacent heat exchangers is not less than 15 mm.

[0018] In a possible design, the plurality of heat exchangers include a first heat exchanger and at least one second heat exchanger, the first heat exchanger is arranged close to the notch, and the second heat exchanger is located on a side of the first heat exchanger away from the notch.

[0019] The flow guide is connected to the top end of the second heat exchanger.

[0020] In a second aspect, the present application provides a heat pump device, including a compressor and any of the heat pump outdoor units described above.

[0021] The heat pump outdoor unit includes a shell and a heat exchange element, the compressor and the heat exchange element are arranged in the shell, and the compressor and the heat exchange element are connected through a pipeline.

[0022] The heat pump outdoor unit and the heat pump device provided by the present application, the heat pump outdoor unit includes a shell and a heat exchange element, the shell is provided with a heat exchange cavity, the rear side of the shell is provided with a notch for communicating the heat exchange cavity with the external environment, the heat exchange element is arranged in the heat exchange cavity, and the heat exchange element corresponds to the notch.

[0023] The shell is equipped with multiple air inlets that communicate with the heat exchanger. Multiple air inlets increase the airflow path, allowing more air to enter the heat exchange chamber from multiple air inlets, thus increasing the airflow. In the front-back direction of the shell, multiple air inlets are distributed around the heat exchanger. This distribution ensures that air can flow through the heat exchanger from multiple directions to fully exchange heat with the heat exchanger, improving the heat exchange capacity and avoiding the problem of uneven airflow caused by air entering from one direction, thereby improving the uniformity and efficiency of heat exchange. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is a schematic diagram of the structure of an outdoor unit of a heat pump in related technologies;

[0026] Figure 2 This is a schematic diagram of the structure of the outdoor unit of the heat pump provided in the embodiment of this application;

[0027] Figure 3 for Figure 2 Enlarged view of section A;

[0028] Figure 4 for Figure 2 A structural schematic diagram of the outdoor unit of a heat pump from another perspective;

[0029] Figure 5 for Figure 2 A schematic diagram of the structure of the heat exchanger within the heat exchange cavity;

[0030] Figure 6 for Figure 5 A schematic diagram of the connection structure between the first and second heat exchangers.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Shell; 101 - Heat exchange chamber; 102 - Notch;

[0033] 110 - Top plate; 111 - First air inlet;

[0034] 120 - Base plate; 121 - Second air inlet;

[0035] 130 - Side panel; 131 - Third air inlet;

[0036] 200 - Heat exchanger;

[0037] 210 - First heat exchanger;

[0038] 220 - Second heat exchanger;

[0039] 300-flow guide;

[0040] 310-concave surface.

[0041] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and detailed description are not intended to limit the scope of the present application in any way, but to explain the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0043] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present application and the above drawings (if any) are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein.

[0044] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean example, illustration, or description. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present concepts in a particular manner. It is to be understood that the embodiments described herein are merely exemplary and non-limiting.

[0045] In addition, the terms "set", "connected", "fixed" should be interpreted broadly. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above terms in the embodiments of the present disclosure according to the specific circumstances.

[0046] Unless otherwise specified, the term "a plurality of" means two or more.

[0047] As known from the background art, the heat pump device usually has an outdoor heat exchanger, which is arranged in the outdoor in the form of an outdoor unit. The outdoor unit mainly exchanges heat with air through the heat exchanger, so as to achieve the effect of heating or cooling.

[0048] Combination Figure 1 As shown in the related technology, both the heat exchanger and the fan (not shown in the figure) are installed inside the outdoor unit casing. Under the action of the fan, the external gas enters the casing from the rear side of the heat exchanger, passes through the heat exchanger and exchanges heat with it, and then flows out through the air outlet on the front side of the casing after passing through the fan.

[0049] Due to the airflow field of the fan, existing outdoor units typically have a larger airflow at the location directly opposite the heat exchanger and the fan, while the airflow at the edge of the heat exchanger is smaller.

[0050] Airflow is one of the key factors affecting heat exchanger performance. A larger airflow means more air can flow through the heat exchanger, resulting in more thorough heat exchange. Conversely, a smaller airflow reduces the heat exchanger's capacity, leading to a decrease in the overall operating efficiency of the heat pump system.

[0051] To address the aforementioned issues, this application provides a heat pump outdoor unit and a heat pump device. The heat pump outdoor unit includes a housing and a heat exchange component. The housing has a heat exchange cavity, and a notch is provided on the rear side of the housing to connect the heat exchange cavity with the external environment. The heat exchange component is disposed inside the heat exchange cavity, and the heat exchange component corresponds to the notch.

[0052] The shell is equipped with multiple air inlets that communicate with the heat exchanger. Multiple air inlets increase the airflow path, allowing more air to enter the heat exchange chamber from multiple air inlets, thus increasing the airflow. In the front-back direction of the shell, multiple air inlets are distributed around the heat exchanger. This distribution ensures that air can flow through the heat exchanger from multiple directions to fully exchange heat with the heat exchanger, improving the heat exchange capacity and avoiding the problem of uneven airflow caused by air entering from one direction, thereby improving the uniformity and efficiency of heat exchange.

[0053] Therefore, the multiple air inlets and their rational arrangement allow air to flow through the heat exchanger from multiple directions, avoiding the problem of airflow being concentrated in the center of the heat exchanger in traditional designs. This not only improves heat exchange efficiency but also enhances the overall operating efficiency and performance of the heat pump equipment, solving the problem of low efficiency in existing heat pump equipment caused by uneven airflow.

[0054] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0055] Combination Figures 2 to 4As shown, one embodiment of this application provides a heat pump outdoor unit, including a housing 100 and a heat exchanger 200. The housing 100 is provided with a heat exchange chamber 101, and a notch 102 for communicating the heat exchange chamber 101 with the external environment is provided on the rear side of the housing 100. The heat exchanger 200 is disposed in the heat exchange chamber 101, and the heat exchanger 200 corresponds to the notch 102.

[0056] Understandably, the casing 100 of a heat pump outdoor unit typically has a front and rear side arranged opposite each other, a top and bottom side arranged opposite each other, and a left and right side arranged opposite each other.

[0057] The top and bottom can be along the vertical direction ( Figure 2 The Z-axis in the middle is parallel to each other; the left and right sides can be along the width direction of the shell 100. Figure 2 The X-axis in the middle is parallel to the distribution; the front and rear sides can be along the front and rear directions of the housing 100. Figure 3 The Y-axis is parallel to the distribution.

[0058] The housing 100 is provided with a top plate 110 and a bottom plate 120, with the top plate 110 located at the top of the housing 100 (housing 100 facing towards...). Figure 2 The bottom plate 120 is located at the bottom of the housing 100 (on the side facing Z-axis). Figure 2 (On one side in the Z direction). The housing 100 is also provided with a front panel and a rear panel, with the front panel located on the front side of the housing 100 (the housing 100 is facing away from the rear). Figure 2 The rear panel is located on the rear side of the housing 100 (facing the Y direction), and the rear panel is located on the rear side of the housing 100 (housing 100 facing the Y direction). Figure 2 (On the Y-axis side). Taking the operator's view facing the front panel as an example, the housing 100 is also provided with a left side plate and a right side plate, with the left side plate located on the left side of the housing 100 (housing 100 facing...). Figure 2 The right side plate is located on the right side of the housing 100 (the housing 100 faces away from the center X direction). Figure 2 (One side of the X direction).

[0059] The top plate 110, bottom plate 120, left side plate, right side plate, front panel and rear panel together form an installation space for installing various components of the heat pump outdoor unit.

[0060] The installation space is also equipped with a partition, which can divide the installation space into two installation areas, which are distributed along the left and right directions of the shell 100.

[0061] For example, the installation area on the right can be used to install components such as compressors. The compressor can compress low-temperature, low-pressure refrigerant into high-temperature, high-pressure gas, and it can also provide power for refrigerant circulation, enabling the refrigerant to flow continuously in the system and achieve heat transfer.

[0062] The left installation area is the heat exchange cavity 101, which can be used to install the heat exchange element 200 and the fan and the like. The gap 102 is arranged at a position corresponding to the heat exchange cavity 101 on the back plate. The fan is located on the side of the heat exchange element 200 close to the front plate. When the fan is running, air is sucked from the rear side of the shell 100. The air can enter the shell 100 through the gap 102 and flow through the heat exchange element 200 to exchange heat with the heat exchange element 200. The front plate is provided with an air outlet at a position corresponding to the heat exchange cavity 101. After heat exchange, the air flows out of the shell 100 through the air outlet after passing through the fan.

[0063] By arranging the heat exchange element 200 in the heat exchange cavity 101 and corresponding to the gap 102, it can be ensured that the air entering the shell 100 can directly flow through the heat exchange element 200 to exchange heat with the entering air flow.

[0064] In some embodiments, the shell 100 is provided with a plurality of air inlets communicating with the heat exchange element 200. In the front-rear direction of the shell 100, the plurality of air inlets are distributed on the circumferential side of the heat exchange element 200.

[0065] By increasing the plurality of air inlets communicating with the heat exchange cavity 101 on the shell 100, the plurality of air inlets increase the path of air inflow. More air can enter the heat exchange cavity 101 from the plurality of air inlets, increasing the air inflow. At the same time, in the front-rear direction of the shell 100, the plurality of air inlets are distributed on the circumferential side of the heat exchange element 200. This distribution ensures that air can enter the heat exchange cavity 101 from multiple directions and flow to the heat exchange element 200, which can make the air field distribution uniform, fully utilize the edge area of the heat exchange element 200, and achieve full heat exchange, thereby improving the overall heat exchange capacity of the heat exchange element 200 and improving the heating (or cooling) capacity of the heat pump equipment.

[0066] Specifically, when the fan starts running, the fan rotates, and external air reaches the heat exchange element 200 through the gap 102. At this time, additional external air can enter the heat exchange cavity 101 through the plurality of air inlets and reach the circumferential side of the heat exchange element 200, so that more air can be fully heat exchanged with the heat exchange element 200, greatly improving the heat exchange capacity of the heat exchange element 200.

[0067] As can be seen, the heat energy outdoor unit provided by the embodiments of the present application has the plurality of air inlets arranged and arranged reasonably, so that air can flow through the heat exchange element 200 from multiple directions, avoiding the problem that the air volume is concentrated in the center of the heat exchanger in the traditional design. This not only improves the heat exchange efficiency, but also improves the operation efficiency and performance of the entire heat pump equipment, solving the problem of low efficiency of the heat pump equipment caused by uneven air volume in the prior art.

[0068] In combination Figure 3 and Figure 5As shown, in some embodiments, the plurality of air inlets includes a first air inlet 111, the first air inlet 111 is arranged on the top plate 110, the first air inlet 111 is located at one end of the top plate 110 close to the gap 102, and the first air inlet 111 corresponds to the upper side of the heat exchange element 200.

[0069] The first air inlet 111 is arranged on the top plate 110, and the first air inlet 111 can allow air to enter the shell 100 from above.

[0070] The position of the first air inlet 111 corresponds to the upper side of the heat exchange element 200, which ensures that the air entering from the first air inlet 111 can directly flow to the upper area of the heat exchange element 200, so that the edge part above the heat exchange element 200 can be effectively utilized to exchange heat with the entering air, and the wind receiving area of the heat exchange element 200 is increased.

[0071] The first air inlet 111 is located at one end of the top plate 110 close to the gap 102, which can directly communicate with the gap 102 to increase the air inlet area of the gap 102, so that air can more smoothly enter the heat exchange cavity 101 from the outside.

[0072] In combination Figure 4 As shown, in some embodiments, the plurality of air inlets includes a second air inlet 121, the second air inlet 121 is arranged on the bottom plate 120, and the second air inlet 121 corresponds to the lower side of the heat exchange element 200.

[0073] The second air inlet 121 is arranged on the bottom plate 120 to allow air to enter the shell 100 from below. The second air inlet 121 can ensure that air enters from the bottom of the shell 100, covering the lower area of the heat exchange element 200, thereby improving the comprehensiveness of heat exchange.

[0074] The position of the second air inlet 121 corresponds to the lower side of the heat exchange element 200, which ensures that the air entering from the second air inlet 121 can directly flow to the lower area of the heat exchange element 200, so that the edge part below the heat exchange element 200 can be effectively utilized to exchange heat with the entering air, and the wind receiving area of the heat exchange element 200 is increased.

[0075] In combination Figure 2 And Figure 4 As shown, in some embodiments, the shell 100 includes a side plate 130 along one side in the width direction, the heat exchange element 200 is close to the side plate 130, and the plurality of air inlets includes a third air inlet 131, the third air inlet 131 is arranged on the side plate 130, and the third air inlet 131 corresponds to one side of the heat exchange element 200.

[0076] It can be understood that the heat exchange element 200 is arranged close to the left side plate, and the third air inlet 131 can be arranged on the left side plate.

[0077] The third air inlet 131, as part of the plurality of air inlets, increases the path of air entering the shell 100, allowing air to enter the shell 100 from the side.

[0078] The third air inlet 131 corresponds to one side of the heat exchange member 200 in position, and air entering from the third air inlet 131 can directly flow to the area of one side of the heat exchange member 200, so that the edge part of the heat exchange member 200 close to the left side plate can be effectively utilized for heat exchange with the entering air, increasing the wind area of the heat exchange member 200.

[0079] Specifically, by providing the first air inlet 111, the second air inlet 121 and the third air inlet 131 on the shell 100, not only the path of air entering is increased, the diversity and flexibility of air flow are enhanced, but also the air flow can be effectively and fully exchanged with the top, bottom and side of the heat exchange member 200, the wind area of the heat exchange member 200 is increased, the overall heat exchange efficiency of the heat exchange member 200 is improved, and the operation efficiency and performance of the heat pump equipment are further improved.

[0080] In some embodiments, a flow guide 300 is arranged in the air inlet, and in the front-rear direction of the shell 100, the first end of the flow guide 300 is arranged close to the air inlet, and the second end of the flow guide 300 is arranged extending towards the heat exchange member 200, so as to guide the air flow of the air inlet to the heat exchange member 200.

[0081] It can be understood that the flow guide 300 can guide and control the flow direction of the entering air, effectively guide the air entering the air inlet from outside to the position where the heat exchange member 200 is located, which helps to optimize the air flow path, reduce the turbulence of air flow, and improve the efficiency and stability of air flow.

[0082] Taking the first air inlet 111 as an example, the flow guide 300 can be arranged in the first air inlet 111; in the front-rear direction of the shell 100, the first end of the flow guide 300 is connected with the inner wall of the first air inlet 111 away from the gap 102, and the second end of the flow guide 300 is connected with the heat exchange member 200.

[0083] The two ends of the flow guide 300 are respectively connected with the inner wall of the first air inlet 111 and the heat exchange member 200, so that the air can be directly guided to the surface of the heat exchange member 200 from the first air inlet 111, instead of passing through the top of the heat exchange member 200 and directly flowing to the fan.

[0084] In this way, the entering air can be maximally utilized for heat exchange with the heat exchange member 200, the overall heat exchange efficiency of the heat exchange member 200 is improved, and the operation efficiency and performance of the heat pump equipment are further improved.

[0085] In combination Figure 5As shown, in some embodiments, in the front-rear direction of the shell 100, the first end of the flow guide 300 can be directly connected with the inner wall of the top plate 110, and the second end of the flow guide 300 is connected with the heat exchange member 200. As long as the first end of the flow guide 300 does not block the first air inlet 111, the effect of guiding air to the heat exchange member 200 can also be achieved.

[0086] In combination Figure 5 As shown, in some embodiments, the flow guide 300 is an arc-shaped member, and in the front-rear direction of the shell 100, the concave surface 310 of the flow guide 300 faces the heat exchange member 200, and the concave surface 310 is used to guide the air flow from the air inlet to the heat exchange member 200.

[0087] It can be understood that the arc shape of the arc-shaped member helps to smoothly guide the air flow, effectively changes the direction of the air flow, reduces the resistance and turbulence of the air flow, and makes the air flow more smoothly to the target area (i.e., the position of the heat exchange member 200), thereby improving the efficiency of the air flow.

[0088] The concave surface 310 as the flow guide surface of the flow guide 300 is arranged towards the heat exchange member 200, which can effectively converge and guide the air flow to flow to the heat exchange member 200.

[0089] It should be noted that in the width direction of the shell 100, the length of the flow guide 300 is greater than or equal to the length of the first air inlet 111. In this way, the air entering the heat exchange cavity 101 through the first air inlet 111 can be sufficiently guided, so that the air can be effectively guided to the heat exchange member 200.

[0090] Of course, the flow guide 300 can also be arranged in the second air inlet 121 and the third air inlet 131, and the flow guide 300 in the second air inlet 121 and the third air inlet 131 has the same effect as the flow guide 300 in the first air inlet 111. The embodiments of the present application will not be described here.

[0091] In some embodiments, each air inlet includes a plurality of openings, and the plurality of openings are arranged at intervals along the circumferential side of the heat exchange member 200.

[0092] Each air inlet is composed of a plurality of openings, which helps to more evenly distribute the air flow, optimize the air flow path, reduce interference between air flows, and reduce turbulence and noise problems that may be caused by a single large opening.

[0093] In addition, the interval arrangement of the openings can also ensure the structural strength and stability of the shell 100, avoiding the problem of weakening the structure of the shell 100 due to a single and excessively large opening.

[0094] In combination Figure 3 , Figure 5 and Figure 6As shown, in some embodiments, the heat exchange member 200 includes a plurality of heat exchangers connected in sequence, and the plurality of heat exchangers are arranged in parallel and spaced apart in the front-rear direction of the shell 100.

[0095] It can be understood that, taking the evaporator as an example, the traditional three-row evaporator (inner row, middle row, and outer row) is arranged closely, the distance between the evaporators is close, and the evaporator and the surrounding shell 100 are connected by close screws, so that the external gas can only enter the fan side through the rear side of the evaporator.

[0096] The external gas can only enter the evaporator through the surface of the outermost row of evaporators, so that the gas flowing through the middle row and the innermost row of evaporators has been exchanged with the outer row of evaporators, and therefore the heat exchange capacity of each row of evaporators from the outside to the inside decreases in turn, resulting in low utilization rate of the inner row of evaporators.

[0097] The heat pump outdoor unit provided by the embodiment of the present application includes a plurality of heat exchangers, and the plurality of heat exchangers can increase the heat exchange area, thereby improving the overall heat exchange capacity.

[0098] In addition, the two adjacent heat exchangers can be connected by a tube plate, so that the heat exchangers are arranged in parallel and spaced apart, and there is a certain gap between the two adjacent heat exchangers, so as to ensure that each heat exchanger has sufficient space for effective heat exchange, and to avoid the reduction of heat exchange efficiency caused by too close arrangement.

[0099] Combined with the plurality of air inlets arranged on the shell 100, the air can be introduced from the circumferential side of the heat exchanger, the heat exchange area between the external gas and the heat exchanger is increased, the utilization rate of the heat exchanger is improved, the air inlet resistance is reduced, and the overall machine capacity is improved.

[0100] In some embodiments, the distance between the two adjacent heat exchangers is not less than 15 mm.

[0101] By controlling the distance between the adjacent heat exchangers, the problem that the air flow is not smooth between the heat exchangers due to too close arrangement of the heat exchangers can be prevented.

[0102] It can be understood that, when the distance between the two heat exchangers is less than 15 mm, the gap between the two adjacent heat exchangers is too small, and the gas cannot flow smoothly in the gap, resulting in low utilization rate of the heat exchanger closer to the inner side of the shell 100.

[0103] Setting the distance between the two adjacent heat exchangers to be more than 15 mm can make each heat exchanger have sufficient space for air flow and heat exchange, which helps to reduce air flow blockage and disorder, ensures that the air can flow smoothly through each heat exchanger, and improves the heat exchange efficiency.

[0104] Exemplarily, the distance between two adjacent heat exchangers can be set in the range of 15mm to 40mm.

[0105] It should be noted that the distance between two heat exchangers should not be too large, otherwise the overall volume of the heat exchange member 200 will be large, which is not conducive to the rational use of the heat exchange cavity 101.

[0106] In some embodiments, the plurality of heat exchangers includes a first heat exchanger 210 and at least one second heat exchanger 220, the first heat exchanger 210 is arranged close to the gap 102, and the second heat exchanger 220 is located on the side of the first heat exchanger 210 away from the gap 102.

[0107] The first heat exchanger 210 is arranged close to the gap 102, and the air entering from the gap 102 first contacts the first heat exchanger 210. The second heat exchanger 220 is arranged on the other side of the first heat exchanger 210, i.e. the side away from the gap 102, so that the air can continue to flow to the second heat exchanger 220 for further heat exchange after passing through the first heat exchanger 210.

[0108] Specifically, when the fan starts to operate, the fan rotates, and a large amount of external air can pass through the first heat exchanger 210 and then pass through each second heat exchanger 220. At this time, air passes through the air inlets formed in the top plate 110, the side plate 130, and the bottom plate 120 to reach the space between the adjacent two heat exchangers, so that each heat exchanger has new air for heat exchange, avoiding the use of the first heat exchanger 210 to heat the air after the heat exchange of the second heat exchanger 220, and improving the heat exchange capacity of the heat exchanger.

[0109] At the same time, due to the multiple air inlets, the flow resistance is reduced, and the air volume around the heat exchanger is also increased, so that each space of the heat exchanger is fully utilized.

[0110] In some embodiments, the flow guide member 300 is connected to the top end of the second heat exchanger 220.

[0111] Specifically, the second end of the flow guide member 300 is connected to the top end of the second heat exchanger 220. The flow guide member 300 can make the air first enter the space between the heat exchangers, and then flow to the fan for exhaust after heat exchange with the heat exchanger, instead of directly flowing to the fan from the top of the heat exchange member 200.

[0112] The heat exchange member 200 can be two rows of evaporators or three rows of evaporators. Among them, the flow guide member 300 can be connected to the second heat exchanger 220 closest to the first heat exchanger 210 to guide the air to the space between the first heat exchanger 210 and the second heat exchanger 220.

[0113] When the second heat exchanger 220 is multiple (such as three rows of evaporators), the flow guide 300 can also be connected with the second heat exchanger 220 farthest from the first heat exchanger 210 to guide the air between the first heat exchanger 210 and the second heat exchanger 220 and between two second heat exchangers 220.

[0114] Another aspect of the embodiments of the present application provides a heat pump device, comprising a compressor and a heat pump outdoor unit provided by any of the above embodiments; the heat pump outdoor unit comprises a shell 100 and a heat exchange element 200, the compressor and the heat exchange element 200 are arranged in the shell 100, and the compressor and the heat exchange element 200 are connected through a pipeline.

[0115] Among them, the heat pump outdoor unit has been described in detail in the above embodiments, and will not be repeated here.

[0116] For example, the heat pump device can be an air conditioner, a water heater or a floor heating system, etc.

[0117] Taking a heat pump water heater as an example, the core components of the heat pump device include a compressor, a condenser, a throttling valve, an outdoor heat exchanger, a water storage tank and a circulating water pump, etc.

[0118] For example, when the heat pump water heater is working, first, the compressor can compress the refrigerant from a low temperature and low pressure state to a high temperature and high pressure state. Then, the high temperature and high pressure refrigerant gas flows into the condenser. At the same time, the circulating water pump starts to pump the cold water in the water storage tank into the condenser to exchange heat with the high temperature and high pressure refrigerant gas. After heat exchange, the temperature of the water is significantly increased, and then the hot water is sent back to the water storage tank for user use.

[0119] After completing the heat exchange, the temperature and pressure of the refrigerant gas are reduced, and the refrigerant gas is throttled through the throttling valve, and the pressure and temperature can be further reduced to convert into low temperature and low pressure liquid refrigerant, which is then flowed into the outdoor heat exchanger through the pipeline. In the outdoor heat exchanger, the liquid refrigerant absorbs heat from the outside air and evaporates to convert into gaseous refrigerant. Finally, the gaseous refrigerant is sucked into the compressor again to start a new cycle.

[0120] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat pump outdoor unit characterized by comprising: The heat exchange device comprises a shell (100) and a heat exchange element (200), the shell (100) is provided with a heat exchange cavity (101), the rear side of the shell (100) is provided with a gap (102) for communicating the heat exchange cavity (101) with the external environment, and the heat exchange element (200) is arranged in the heat exchange cavity (101) and corresponds to the gap (102). The shell (100) is provided with a plurality of air inlets communicating with the heat exchange cavity (101), and the plurality of air inlets are distributed on the circumferential side of the heat exchange element (200) in the front-rear direction of the shell (100).

2. The heat pump outdoor unit according to claim 1, characterized by The shell (100) comprises a top plate (110), the plurality of air inlets comprise a first air inlet (111), the first air inlet (111) is arranged on the top plate (110), and the first air inlet (111) is located at one end of the top plate (110) close to the gap (102).

3. The heat pump outdoor unit according to claim 1, characterized by The shell (100) comprises a bottom plate (120), the plurality of air inlets comprise a second air inlet (121), the second air inlet (121) is arranged on the bottom plate (120), and the second air inlet (121) is correspondingly located below the heat exchange element (200).

4. The heat pump outdoor unit according to claim 1, characterized by The shell (100) comprises a side plate (130) on one side in the width direction, the heat exchange element (200) is close to the side plate (130), the plurality of air inlets comprise a third air inlet (131), the third air inlet (131) is arranged on the side plate (130), and the third air inlet (131) is correspondingly located on one side of the heat exchange element (200).

5. The heat pump outdoor unit according to any one of claims 1 to 4, characterized by, The air inlet is provided with a flow guide element (300); In the front-rear direction of the shell (100), the first end of the flow guide element (300) is arranged close to the air inlet, and the second end of the flow guide element (300) extends towards the heat exchange element (200) for guiding the air flow of the air inlet to the heat exchange element (200).

6. The heat pump outdoor unit according to claim 5, characterized by In the front-rear direction of the shell (100), the first end of the flow guide element (300) is connected to the inner wall of the air inlet away from the gap; The flow guide element (300) is an arc-shaped element, in the front-rear direction of the shell (100), the concave surface (310) of the flow guide element (300) faces the heat exchange element (200), and the concave surface (310) is used for guiding the air flow from the air inlet to the heat exchange element (200).

7. The heat pump outdoor unit according to any one of claims 1 to 4, characterized by, Each air inlet comprises a plurality of openings, and the plurality of openings are arranged at intervals along the circumferential side of the heat exchange element (200).

8. The heat pump outdoor unit according to claim 5, wherein The heat exchange element (200) comprises a plurality of heat exchangers connected in sequence, and the plurality of heat exchangers are arranged in parallel and at intervals in the front-rear direction of the shell (100). And / or, the distance between two adjacent heat exchangers is not less than 15 mm.

9. The heat pump outdoor unit according to claim 8, characterized by The plurality of heat exchangers comprises a first heat exchanger (210) and at least one second heat exchanger (220), the first heat exchanger (210) is arranged close to the gap (102), and the second heat exchanger (220) is arranged on the side of the first heat exchanger (210) away from the gap (102). The flow guide (300) is connected to the top end of the second heat exchanger (220).

10. A heat pump apparatus, characterized by, The heat pump outdoor unit comprises a compressor and a heat pump outdoor unit according to any one of claims 1-9. The heat pump outdoor unit comprises a shell (100) and a heat exchange element (200), the compressor and the heat exchange element (200) are arranged in the shell (100), and the compressor and the heat exchange element (200) are connected by a pipeline.

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