Air source heat pump with winter outdoor anti-freezing structure
By installing antifreeze components on the air source heat pump casing, the problem of evaporator frost and snow accumulation is solved by using heating elements and heating plates to melt snow, ensuring the stable operation of the heat pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA BAIXIN ENERGY TECH DEV CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
When using existing air source heat pumps in winter, frost easily forms on the evaporator, which is inconvenient to clean. Snow also tends to harden on the top, affecting the normal operation of the heat pump and making cleaning difficult.
An antifreeze component, including a heating plate, a water channel, a heating element, and a drain pipe, is installed on the heat pump body casing. The heating element melts the snow, which is then discharged through the water channel and drain pipe. The heating plate melts the frozen connection between the snow and the heat pump casing, ensuring that the snow falls steadily.
It achieves stable melting and removal of snow, avoids operational obstacles caused by snow compaction in the heat pump, and improves the stability and efficiency of the heat pump.
Smart Images

Figure CN224246546U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air source heat pump technology, specifically an air source heat pump with an outdoor antifreeze structure for winter. Background Technology
[0002] Heat pump technology is a new energy technology that has garnered significant global attention in recent years. A pump, as we know it, is a mechanical device that can increase potential energy; for example, a water pump primarily lifts water from a lower to a higher level. A heat pump, however, is a device that extracts low-grade heat energy from the air, water, or soil in nature, uses electrical energy to perform work, and provides usable high-grade heat energy. Air-source heat pumps operate through a compressor system, absorbing heat from the air to produce hot water. Specifically, the compressor compresses the refrigerant; the heated refrigerant then passes through a condenser in a water tank to produce hot water. After heat exchange, the refrigerant returns to the compressor for the next cycle. During this process, heat from the air is absorbed by the evaporator and transferred into the refrigerant, which is then transferred into the water to produce hot water.
[0003] When existing heat pumps are used in winter, the evaporator absorbs heat, which easily leads to frost formation on the evaporator fins. The gaps between the evaporator fins are small, making manual cleaning inconvenient. When the heat pump automatically defrosts, it requires a certain amount of preheating, and snow easily accumulates on the top of the heat pump. When there is a lot of snow, it can reduce the heat in the surrounding environment, requiring timely cleaning. Manual cleaning is quite troublesome, especially after snow or rain, when snow tends to harden on the evaporator at the top of the heat pump, making it difficult to clean. Utility Model Content
[0004] The purpose of this invention is to solve the problems mentioned in the background.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0006] This utility model discloses an air source heat pump with a winter outdoor antifreeze structure, including a heat pump body. The outer shell of the heat pump body is provided with an antifreeze component, which includes a heating plate, a water channel, a heating element, and a drain pipe. The water channel is installed on the outer shell of the heat pump body, the heating element is installed in the water channel, the water channel is provided with a water outlet, the drain pipe is connected to the water outlet, and the heating plate is installed at the four corners of the heat pump body.
[0007] Preferably, the heating plate includes an inner corner support, a connecting plate, a metal shell, and a top cover plate. The metal shell contains heating elements, the top cover plate covers the metal shell, and the back of the metal shell is connected to the inner corner support via the connecting plate.
[0008] Preferably, the inner corner support is provided with a threaded hole, and the outer shell of the heat pump body is provided with a corresponding through hole. The inner corner support is connected to the heat pump body by screws.
[0009] Preferably, the two ends of the top cover are bent inward to form folded edges, which are fastened to the four corners of the heat pump body.
[0010] Preferably, the water channel is an arc-shaped channel, and a horizontal support is provided inside the water channel, with the heating element installed on the horizontal support.
[0011] Preferably, the cross brace has an arc-shaped groove, the heating element is inserted into the arc-shaped groove, and the cross brace has a locking plate that presses the heating element together. Beneficial effects
[0012] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0013] This utility model discloses an air source heat pump with a winter outdoor antifreeze structure. It melts snow into water by heating the heating element, and the water flows through the water channel to the outlet and is finally discharged through the drain pipe. The whole process starts from heating the bottom of the snow. When the bottom of the snow melts, the overall stability is compromised and it is prone to collapse. At the same time, after the bottom melts, the snow above falls and continues to melt. The overall operation is relatively stable and can perfectly melt snow. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an air source heat pump with a winter outdoor antifreeze structure according to the present invention.
[0015] Figure 2 This is a schematic diagram of the structure of an air source heat pump with an outdoor antifreeze structure for winter, according to this utility model.
[0016] Figure 3 This is a schematic diagram of the water channel of an air source heat pump with a winter outdoor antifreeze structure according to the present invention.
[0017] Explanation of the labels in the diagram:
[0018] 100. Heat pump body;
[0019] 200. Antifreeze component; 210. Heating plate; 211. Inner corner support; 212. Connecting plate; 213. Metal shell; 214. Top cover plate; 220. Water channel; 221. Cross brace; 222. Locking plate; 230. Heating element; 240. Drain pipe. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0022] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example
[0026] See attached document Figure 1-3 The air source heat pump with a winter outdoor antifreeze structure in this embodiment includes a heat pump body 100. An antifreeze component 200 is provided on the outer shell of the heat pump body 100. The antifreeze component 200 includes a heating plate 210, a water channel 220, a heating element 230, and a drain pipe 240. The water channel 220 is installed on the outer shell of the heat pump body 100. The heating element 230 is installed in the water channel 220. A water outlet is provided on the water channel 220. The drain pipe 240 is connected to the water outlet. The heating plate 210 is installed at the four corners of the heat pump body 100.
[0027] The heating plate 210 in this embodiment includes an inner corner support 211, a connecting plate 212, a metal shell 213, and an upper cover plate 214. The metal shell 213 is provided with heating elements, and the upper cover plate 214 covers the metal shell 213. The back of the metal shell 213 is connected to the inner corner support 211 through the connecting plate 212.
[0028] In this embodiment, the inner corner support 211 is provided with a threaded hole, and the outer shell of the heat pump body 100 is provided with a corresponding through hole. The inner corner support 211 is connected to the heat pump body 100 by screws.
[0029] In this embodiment, the two ends of the upper cover plate 214 are bent inward to form folded edges, which are fastened to the four corners of the heat pump body 100.
[0030] In this embodiment, the water channel 220 is an arc-shaped channel, and a cross brace 221 is provided inside the water channel 220. The heating tube 230 is installed on the cross brace 221.
[0031] In this embodiment, the cross brace 221 is provided with an arc-shaped groove, the heating tube 230 is inserted into the arc-shaped groove, and the cross brace 221 is provided with a locking piece 222, which presses the heating tube 230.
[0032] The above-mentioned design avoids the problem of mud formed by the mixture of debris and dust in the water tank 220 covering the heating element 230, which would eventually damage the heating element 230 or reduce its heating efficiency.
[0033] Working principle: When heavy snow in winter causes the heat pump body 100 to be covered by snow, the heating element 230 heats up to melt the snow into water, which flows through the water channel 220 to the outlet and is finally discharged through the drain pipe 240. The whole process starts from heating the bottom of the snow. When the bottom of the snow is heated and melted, the overall stability is compromised and it is easy to collapse. At the same time, after the bottom melts, the snow above falls and continues to melt. The overall operation is relatively stable and can perfectly melt snow.
[0034] In extreme conditions, where snow accumulates and freezes to the outer shell of the heat pump body 100, even if the snow at the bottom melts, the snow pile will not fall, thus preventing continuous melting and causing the heat pump to malfunction. However, in this design, the top cover covers the four corners, so the snow only freezes to the outer shell. The heating element heats up and transmits the heat to the frozen areas through the top cover 214, melting the snow pile and allowing it to detach from the freeze. After that, the falling snow pile can be perfectly melted.
[0035] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An air source heat pump with an outdoor antifreeze structure for winter use, characterized in that: The device includes a heat pump body (100), and an antifreeze assembly (200) is provided on the outer shell of the heat pump body (100). The antifreeze assembly (200) includes a heating plate (210), a water channel (220), a heating element (230), and a drain pipe (240). The water channel (220) is installed on the outer shell of the heat pump body (100), the heating element (230) is installed in the water channel (220), the water channel (220) is provided with a water outlet, the drain pipe (240) is connected to the water outlet, and the heating plate (210) is installed at the four corners of the heat pump body (100).
2. An air source heat pump with an outdoor antifreeze structure for winter as described in claim 1, characterized in that: The heating plate (210) includes an inner corner support (211), a connecting plate (212), a metal shell (213) and an upper cover plate (214). The metal shell (213) is provided with heating elements. The upper cover plate (214) covers the metal shell (213). The back of the metal shell (213) is connected to the inner corner support (211) through the connecting plate (212).
3. An air source heat pump with an outdoor antifreeze structure for winter as described in claim 2, characterized in that: The inner corner support (211) is provided with a threaded hole, and the outer shell of the heat pump body (100) is provided with a corresponding through hole. The inner corner support (211) is connected to the heat pump body (100) by screws.
4. An air source heat pump with a winter outdoor antifreeze structure according to claim 2, characterized in that: The two ends of the upper cover plate (214) are bent inward to form folded edges, which are fastened at the four corners of the heat pump body (100).
5. An air source heat pump with a winter outdoor antifreeze structure according to claim 1, characterized in that: The water channel (220) is an arc-shaped channel, and a cross brace (221) is provided inside the water channel (220). The heating tube (230) is installed on the cross brace (221).
6. An air source heat pump with an outdoor antifreeze structure for winter as described in claim 5, characterized in that: The cross brace (221) is provided with an arc-shaped groove, the heating tube (230) is inserted into the arc-shaped groove, and the cross brace (221) is provided with a locking piece (222), which presses the heating tube (230) together.