Ice melting device and heat pump unit

Abstract

The utility model relates to an ice melting device and a heat pump unit, the ice melting device comprises a heating assembly and a heat preservation assembly, the outer surface of the heating assembly comprises a first surface and a second surface, and the first surface is used for being in contact with a chassis assembly to achieve temperature rise of the chassis assembly; the heat preservation assembly is arranged on the second surface. According to the ice melting device provided by the invention, the first surface of the heating assembly is in contact with the chassis assembly, and heat is transferred to the chassis assembly, so that ice condensed in the chassis assembly is melted. The heat preservation assembly is arranged on the second surface and used for isolating a heat exchange channel between the second surface and air, heat generated by the heating assembly is prevented from being dissipated from the second surface, the heat can be prevented from being dissipated from the second surface, and the heating assembly can only dissipate heat through the first surface; therefore, most heat is transmitted to the chassis assembly through the first surface for ice melting, the heat utilization rate and the heat exchange efficiency of the heating assembly are improved, and the ice melting effect of the ice melting device is improved.

Description

Technical Field

[0001] The present application relates to the field of heat pump technology, and in particular to an ice melting device and a heat pump unit. Background Art

[0002] During the operation of the heat pump unit, the heat exchanger (such as the evaporator and condenser) will produce condensed water during the defrosting process. In order to collect and discharge the condensed water, a chassis for receiving the condensed water is often set under the heat exchanger. The chassis is provided with drainage holes and other structures to discharge the condensed water received in the chassis from the preset area.

[0003] When a heat pump unit operates in a low-temperature environment, where the outdoor temperature is well below freezing, the condensed water collected in the chassis will freeze, clogging the drain holes. If the heat pump unit operates in a low-temperature environment for a long time, the condensed water will accumulate and freeze in the chassis. The solid ice will squeeze the heat exchanger tubes, causing them to deform, crack, and leak.

[0004] The existing method of melting ice mainly involves adding a heating structure to the chassis to melt ice. When the heating structure is set on the upper part of the chassis, the heating structure is immersed in the water or ice accumulated inside the chassis for a long time, which has an adverse effect on the safety and service life of the heating structure.

[0005] When the heating structure is set at the bottom of the chassis, the heating structure only exchanges heat with the chassis through a limited contact surface at the top, and most of the heat is easily dissipated into the air through other surfaces of the heating structure, resulting in low heat utilization and heat exchange efficiency of the heating structure. Utility Model Content

[0006] The present application provides an ice melting device and a heat pump unit to solve the technical problem in the prior art that when the heating structure is in contact with the chassis for heat exchange, the heating structure easily loses heat, resulting in low heat utilization and heat exchange efficiency of the heating structure.

[0007] In a first aspect, the present application provides an ice melting device, comprising:

[0008] A heating assembly, wherein the outer surface of the heating assembly includes a first surface and a second surface, and the first surface is configured to be in contact with the chassis assembly to increase the temperature of the chassis assembly;

[0009] The heat preservation component is arranged on the second surface.

[0010] Optionally, a water collecting tank is provided on the chassis assembly, and the heating assembly is correspondingly arranged at the bottom of the water collecting tank.

[0011] Optionally, a baffle assembly is provided on the chassis assembly, and the baffle assembly and the chassis assembly are combined to form a water collecting trough.

[0012] Optionally, the water collection tank is arranged in the peripheral edge area of ​​the chassis assembly.

[0013] Optionally, the chassis assembly is provided with a drainage structure communicating with the sump.

[0014] Optionally, the heating assembly includes a heat exchange element, and a heat exchange cavity for accommodating a high-temperature heat exchange medium is provided inside the heat exchange element.

[0015] Optionally, the heat exchange element is a plate-shaped structure.

[0016] Optionally, an enhanced heat exchange structure is provided on the inner wall of the heat exchange cavity.

[0017] Optionally, the enhanced heat exchange structure includes a plurality of protrusions and a plurality of recesses, and the plurality of protrusions and the plurality of recesses are arranged at intervals.

[0018] Optionally, there are multiple heat exchange cavities, and the connection between the multiple heat exchange cavities includes parallel connection and / or series connection.

[0019] Optionally, the heat preservation component is provided with a heat preservation cavity, and the heating component is embedded in the heat preservation cavity.

[0020] Optionally, the heat-insulating component includes a flexible heat-insulating part, which is coated on the outside of the heating component.

[0021] Optionally, the ice melting device further includes a fixing assembly connected to the chassis assembly and used for fixing the heating assembly and the heat preservation assembly on the chassis assembly.

[0022] In a second aspect, the present application provides a heat pump unit, comprising the ice melting device provided in the first aspect of the present application, and further comprising a chassis assembly and a heat exchanger, wherein the heat exchanger is arranged on the chassis assembly.

[0023] Optionally, the heating component includes a heat exchange cavity, and a refrigerant pipeline of the heat exchanger is connected to the heat exchange cavity for conveying high-temperature heat exchange medium to the heat exchange cavity.

[0024] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0025] In the ice-melting device provided in an embodiment of the present application, the outer surface of the heating component includes a first surface and a second surface. The first surface is arranged in contact with the chassis component and is used to transfer heat to the chassis component, thereby melting the ice condensed inside the chassis component and preventing the ice from causing damage to the heat exchange tubes of the heat exchanger by squeezing. The thermal insulation component is arranged on the second surface and is used to isolate the heat exchange channel between the second surface and the air, thereby preventing the heat generated by the heating component from being dissipated from the second surface. This can prevent heat from being lost from the second surface (i.e., the non-contact surface relative to the chassis component), so that the heating component can only dissipate heat through the first surface, so that most of the heat is transferred to the chassis component through the first surface to melt ice, which is beneficial to improving the heat utilization rate and heat exchange efficiency of the heating component and improving the ice-melting effect of the ice-melting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 A top view of the heat pump unit provided in an embodiment of the present application;

[0030] Figure 2 A bottom view of the heat pump unit provided in an embodiment of the present application;

[0031] Figure 3 The embodiment of this application provides Figure 1 Cross-sectional view of AA;

[0032] Figure 4 Provided in the embodiments of this application Figure 3 A magnified view of the details of part C in the middle;

[0033] Figure 5 Schematic diagram of the structure of the heating component provided in the embodiment of the present application Figure 1 ;

[0034] Figure 6A top view of the heating assembly provided in the embodiment of the present application Figure 1 ;

[0035] Figure 7 The embodiment of this application provides Figure 6 Cross-sectional view of the middle DD;

[0036] Figure 8 A partial cross-sectional view of the heating assembly provided in the embodiment of the present application Figure 1 ;

[0037] Figure 9 A partial cross-sectional view of the heating assembly provided in the embodiment of the present application Figure 2 ;

[0038] Figure 10 A partial cross-sectional view of the heating assembly provided in the embodiment of the present application Figure 3 ;

[0039] Figure 11 A partial cross-sectional view of the heating assembly provided in the embodiment of the present application Figure 4 ;

[0040] Figure 12 Schematic diagram of the structure of the heating component provided in the embodiment of the present application Figure 2 ;

[0041] Figure 13 A top view of the heating assembly provided in the embodiment of the present application Figure 2 ;

[0042] Figure 14 The embodiment of this application provides Figure 13 Cross-sectional view of EE;

[0043] Figure 15 A cross-sectional view of the thermal insulation assembly and the fixing assembly provided in an embodiment of the present application;

[0044] Figure 16 Provided in the embodiments of this application Figure 1 A magnified detail of part B.

[0045] Description of reference numerals:

[0046] 1. Chassis assembly; 11. Water collecting tank; 12. Drainage structure; 13. Chassis body; 131. Hollow part;

[0047] 2. Heating assembly; 21. Heat exchange element; 211. First surface; 212. Second surface; 22. Heat exchange cavity; 22a. First heat exchange cavity; 22b. Second heat exchange cavity; 22c. Third heat exchange cavity; 22d. Fourth heat exchange cavity; 221. Protrusion; 222. Recess; 23. Connecting tube; 231. First tube; 232. Second tube; 24. Series connection;

[0048] 3. Insulation assembly; 31. Insulation cavity; 32. Flexible insulation element;

[0049] 4. Baffle assembly;

[0050] 5. Fixing assembly; 51. Bracket; 52. Connecting piece;

[0051] 6. First heat exchanger;

[0052] 7. Second heat exchanger. DETAILED DESCRIPTION

[0053] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0055] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0056] In order to solve the technical problem that when the heating structure is in contact with the chassis for heat exchange, the heating structure is prone to heat loss, resulting in low heat utilization and heat exchange efficiency. The present application provides an ice melting device and a heat pump unit. When the heating component 2 is in contact with the chassis component 1 through the first surface 211 for heat exchange, the second surface 212 of the outer surface of the heating component 2 (that is, the non-contact surface relative to the chassis component 1) is provided with an insulation component 3, which can prevent heat from being lost from the second surface 212 (that is, the non-contact surface), so that the heating component 2 can only dissipate heat through the first surface 211, so that most of the heat is transferred to the chassis component 1 through the first surface 211 to melt ice, thereby achieving an improvement in the heat utilization and heat exchange efficiency of the heating component 2.

[0057] See also Figures 1 to 16 In a first aspect, an embodiment of the present application provides an ice melting device, including a heating component 2 and a heat preservation component 3; the outer surface of the heating component 2 includes a first surface 211 and a second surface 212, the first surface 211 being configured to be in contact with the chassis component 1, and capable of transferring heat to the chassis component 1, thereby increasing the temperature of the chassis component 1, thereby melting the ice condensed inside the chassis component 1, and preventing the ice from causing damage to the heat exchange tubes of the heat exchanger by squeezing. The heat preservation component 3 is disposed on the second surface 212, and is configured to isolate the heat exchange channel between the second surface 212 and the air, thereby preventing the heat generated by the heating component 2 from being dissipated from the second surface 212, and preventing heat from being lost from the second surface 212 (i.e., the non-contact surface relative to the chassis component 1), so that the heating component 2 can only dissipate heat through the first surface 211, thereby allowing most of the heat to be transferred to the chassis component 1 through the first surface 211 to melt ice, which is beneficial to improving the heat utilization rate and heat exchange efficiency of the heating component 2, and improving the ice melting effect of the ice melting device, such as Figures 1 to 4 shown.

[0058] In some embodiments of this application, please refer to Figure 1 and Figure 4 Chassis assembly 1 is provided with a water collection trough 11 for collecting condensed water generated during defrosting of the heat exchanger. This separation of water collection trough 11 also achieves dry and wet separation within chassis assembly 1, preventing condensed water from spreading widely within chassis assembly 1 and adversely affecting other components within chassis assembly 1. Heating assembly 2 is positioned at the bottom of water collection trough 11, allowing heating assembly 2 to heat only the bottom of water collection trough 11, reducing the area of ​​chassis body 13 requiring heating and melting ice, thereby reducing the size and energy consumption of heating assembly 2.

[0059] It should be noted that, since the heating structure of the present application is located at the bottom of the chassis assembly 1, it can prevent the heating assembly 2 from being immersed in the water or ice accumulated in the chassis assembly 1 for a long time. When the heating assembly 2 is a heating structure such as an electric heating belt, it can avoid electrical safety accidents caused by the long-term immersion of high-voltage components in the water. When the heating assembly 2 is another heating structure (such as a heat exchange tube), it can prevent dirt in the water from accumulating on the outer surface of the heating assembly 2, affecting the service life and heat exchange effect of the heating assembly 2.

[0060] It should be noted that the water collecting tank 11 can be formed by stamping the chassis body 13, or by adding a water-retaining sheet metal structure to the chassis body 13, both of which can achieve the purpose of this application.

[0061] In some embodiments of this application, please refer to Figure 1 and Figure 4 The chassis assembly 1 is provided with a baffle assembly 4, which encloses the chassis assembly 1 to form a water collection tank 11. The baffle assembly 4 prevents condensed water or melted water in the water collection tank 11 from entering other areas of the chassis assembly 1. At the same time, during ice thawing, since the melted water has a certain amount of heat, the baffle assembly 4 blocks the melted hot water, allowing the hot water to remain in the water collection tank 11 and continue to exchange heat with other unmelted ice, which helps prevent heat loss in the water collection tank 11.

[0062] In some embodiments of this application, please refer to Figure 1 The water collecting tank 11 is arranged in the outer edge area of ​​the chassis assembly 1, which is conducive to the reasonable partitioning of the chassis assembly 1. Large structural parts such as the heat exchanger can be extended along the circumference of the chassis assembly 1 to improve the heat exchange efficiency of the heat exchanger. Other components can be concentrated in the middle of the chassis assembly 1, which is conducive to the reasonable layout of various components on the chassis assembly 1.

[0063] In some embodiments of the present application, the shape of the water collection tank 11 can be a C-shaped structure, an L-shaped structure, a U-shaped structure, or a G-shaped structure, extending circumferentially along the chassis assembly 1. This can be configured based on the number and shape of the heat exchangers, and is not limited here. Accordingly, the shape of the heating assembly 2 matches the shape of the water collection tank 11, allowing the heating assembly 2 to extend along the water collection tank 11, thereby enhancing the targeted heating effect of the heating assembly 2 on the water collection tank 11.

[0064] In some embodiments of this application, please refer to Figure 1 and Figure 2 The chassis assembly 1 is provided with a drainage structure 12 in communication with the sump 11, which can drain the liquid accumulated in the sump 11 and lower the water level of the sump 11. Specifically, the drainage structure 12 includes one or more drainage holes, through which the liquid in the sump 11 can be drained.

[0065] In the above embodiment, the heating component 2 can be an electric heating structure or a heat exchange structure, both of which can achieve the purpose of this application. However, when the heating component 2 is an electric heating structure, if the water in the sump 11 is discharged from the drainage structure 12, part of the liquid will flow along the bottom surface of the chassis body 13 to the area where the heating component 2 is located, which can easily cause the electric heating structure to come into contact with the infiltrated liquid and cause an electrical safety accident, thereby reducing the reliability of the heating component 2 and the ice melting device.

[0066] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 4 、 Figure 5 、 Figure 6 、 Figure 12 and Figure 13 The heating assembly 2 includes a heat exchange element 21. The top surface of the heat exchange element 21 is configured as a first surface 211, which is used for heat exchange with the bottom of the chassis assembly 1. The other surface of the heat exchange element 21 is configured as a second surface 212, which is used to set the insulation assembly 3 to prevent heat loss. The heat exchange element 21 has a heat exchange cavity 22 for accommodating a high-temperature heat exchange medium. The high-temperature heat exchange medium transfers heat to the heat exchange element 21, and then the heat exchange element 21 contacts the chassis assembly 1 for heat exchange. This eliminates the need for power to heat the heating assembly 2, avoids electrical safety accidents caused by contact between the heating assembly 2 and the infiltrated liquid, and improves the reliability of the heating assembly 2 and the ice melting device.

[0067] In the above embodiment, the heat exchange element 21 can be a heat exchange tube, a heat exchange plate (thinner thickness) or a heat exchange block (thicker thickness), all of which can achieve the purpose of this application, but the contact area between the heat exchange tube and the bottom surface of the chassis assembly 1 is small, and the heat exchange block has the problems of large volume and weight.

[0068] Therefore, in some preferred embodiments of the present application, the heat exchange element 21 is a plate-like structure, with the first surface 211 being a flat structure. This not only increases the contact heat exchange area between the heat exchange element 21 and the chassis assembly 1, thereby improving the heat exchange efficiency between the heat exchange element 21 and the chassis assembly 1, but also reduces the space occupied by the heat exchange element 21 through the flat plate-like structure, thereby reducing the volume and weight of the heat exchange element 21. The main body of the heat exchange element 21 is made of a metal material with high heat exchange efficiency, such as aluminum or copper.

[0069] The cross-sectional shape of the heat exchange cavity 22 can be circular, elongated, polygonal, etc., all of which can be used to accommodate high-temperature heat exchange medium and exchange heat with the high-temperature heat exchange medium.

[0070] In some embodiments of this application, please refer to Figure 8 and Figure 9An enhanced heat exchange structure is provided on the inner wall of the heat exchange cavity 22, which can enable the high-temperature heat exchange medium inside the heat exchange cavity 22 to quickly transfer heat to the heat exchange element 21 through the enhanced heat exchange structure, which is beneficial to further improve the heat exchange efficiency of the heat exchange element 21.

[0071] In the above embodiment, the heat exchange enhancement structure can be a plurality of heat exchange fins provided on the inner wall of the heat exchange cavity 22, or a concave-convex structure (such as a corrugated structure, a spiral structure, a toothed structure, a rough texture structure, etc.) provided on the inner wall of the heat exchange cavity 22. Figure 8 and Figure 9 As shown, it can be used to increase the heat exchange area inside the heat exchange cavity 22, so that the heat of the high-temperature heat exchange medium is transferred to the heat transfer element more quickly.

[0072] In some embodiments of this application, please refer to Figure 8 and Figure 9 The enhanced heat exchange structure includes a plurality of protrusions 221 and recesses 222. The plurality of protrusions 221 and recesses 222 are arranged at intervals, which can make the inner wall of the heat exchange cavity 22 appear uneven. Compared with a smooth inner wall, the heat exchange area of ​​the inner wall of the heat exchange cavity 22 can be increased, thereby enhancing the heat exchange efficiency between the high-temperature heat exchange medium and the inner wall of the heat exchange cavity 22.

[0073] It should be noted that multiple protrusions 221 and recessed portions 222 are arranged at intervals along the circumference of the heat exchange cavity 22. The cross-sectional shapes of the protrusions 221 and recessed portions 222 can be the same or different. As long as the inner wall of the heat exchange cavity 22 can be made uneven, the effect of enhanced heat exchange can be achieved. Compared with arranging heat exchange fins on the inner wall of the heat exchange cavity 22, the difficulty of making an enhanced heat exchange structure on the inner wall of the heat exchange cavity 22 can be reduced.

[0074] In some embodiments of the present application, there are one or more heat exchange cavities 22. When the heat exchange cavity 22 is connected to an external working fluid pipeline, a single-channel flow, a dual-channel flow, or a multi-channel flow can be formed inside the heat exchange element 21.

[0075] In some embodiments of the present application, when the number of heat exchange cavities 22 is one, the high-temperature heat exchange medium flows into one end of the heat exchange cavity 22 and flows out from the other end of the heat exchange cavity 22, forming a single-channel flow inside the heat exchange element 21 through the single heat exchange cavity 22.

[0076] In other embodiments of this application, please refer to Figures 6 to 14 When there are multiple heat exchange cavities 22, the connection methods between the multiple heat exchange cavities 22 include parallel and / or series connection, which can be used to form a dual-channel process, a multi-channel process or multiple single-channel processes inside the heat exchange element 21.

[0077] Specifically, when there are two heat exchange cavities 22, when the two heat exchange cavities 22 are connected in parallel, two independent single-channel processes can be formed. When the two heat exchange cavities 22 are connected through the series portion 24, a dual-channel process can be formed inside the heat exchange element 21. Figure 5 、 Figure 6 、 Figure 12 and Figure 13 shown.

[0078] When the number of heat exchange cavities 22 is greater than two, the multiple heat exchange cavities 22 are connected in parallel and / or in series, so that the high-temperature heat exchange medium can flow along the heat exchange element 21, thereby forming a multi-channel flow inside the heat exchange element 21.

[0079] As a specific embodiment of the present application, when the number of heat exchange cavities 22 is four, namely the first heat exchange cavity 22a, the second heat exchange cavity 22b, the third heat exchange cavity 22c and the fourth heat exchange cavity 22d, the four heat exchange cavities 22 are connected end to end, so that the high-temperature heat exchange medium can travel back and forth twice inside the heat exchange element 21 (one time includes one outbound trip and one return trip), thereby achieving sufficient heat exchange between the high-temperature heat exchange medium and the heat exchange element 21.

[0080] In some preferred embodiments of this application, please refer to Figure 5 、 Figure 6 、 Figure 12 、 Figure 13 and Figure 14 There are two heat exchange cavities 22, and the two heat exchange cavities 22 are connected by a series portion 24, so that the high-temperature heat exchange medium enters from one end of the heat exchange cavity 22, passes through the series portion 24 and returns through the other heat exchange cavity 22, so that the high-temperature heat exchange medium only travels back and forth once inside the heat exchange element 21, which can avoid the high-temperature heat exchange medium from flowing too long, resulting in a temperature drop in the later stage of the flow, and failing to heat the chassis assembly 1.

[0081] It should be noted that the series connection portion 24 can be a block structure or a tubular structure with a connecting pipe, both of which can achieve the purpose of the present application.

[0082] In some embodiments of this application, please refer to Figure 5 、 Figure 6 、 Figure 12 and Figure 13The heating assembly 2 further includes a connecting pipe 23 provided on the heating element. The connecting pipe 23 is used to communicate with the heat exchange cavity 22 and is used to input and output the high-temperature heat exchange medium inside the heat exchange cavity 22. Specifically, the connecting pipe 23 includes a first tube body 231 and a second tube body 232. One of the first tube body 231 and the second tube body 232 is used to input the high-temperature heat exchange medium into the heat exchange cavity 22, and the other of the first tube body 231 and the second tube body 232 is used to output the high-temperature heat exchange medium inside the heat exchange cavity 22. Figure 16 shown.

[0083] In some embodiments of this application, please refer to Figure 5 、 Figure 6 、 Figure 12 and Figure 13 The number of heat exchange elements 21 can be one or more. The heat exchange effect between the heating component 2 and the chassis component 1 can be improved by contacting the top plane of one or more heat exchange elements 21 with the chassis component 1 for heat exchange.

[0084] In some embodiments of this application, please refer to Figure 5 and Figure 6 When the heating assembly 2 includes only one plate-shaped heat exchange element 21 , the multiple heat exchange cavities 22 are all arranged in the same heat exchange element 21 .

[0085] In other embodiments of this application, please refer to Figure 12 、 Figure 13 and Figure 14 When the heating assembly 2 includes multiple plate-shaped heat exchange elements 21 , one or more heat exchange cavities 22 may be provided in a single plate-shaped heat exchange element 21 , and the heat exchange cavities 22 in two heat exchange elements 21 are then connected via a series connection portion 24 .

[0086] In the above embodiment, the shape of the heat exchange element 21 matches the shape of the water collecting tank 11, and can be a C-shaped structure, L-shaped structure, U-shaped structure, or G-shaped structure extending along the circumference of the chassis assembly 1. The number of heating assemblies 2 can be one or more, and the purpose of this application can be achieved.

[0087] As a specific embodiment of the present application, when the shape of the water collecting tank 11 is a G-shaped structure, the water collecting tank 11 can be heated by combining two heating components 2, and the shape of the heat exchange element 21 in each heating component 2 is an L-shaped structure, such as Figure 1 and Figure 2 shown.

[0088] In some embodiments of this application, please refer to Figure 2 、 Figure 4 and Figure 15The insulation component 3 is provided with an insulation cavity 31, and the heating component 2 is embedded in the insulation cavity 31. The second surface 212 of the heating component 2 (that is, other surfaces of the heat exchange component 2 except the top surface) can be fully surrounded by the insulation cavity 31, thereby improving the insulation effect of the insulation component 3, reducing the heat dissipation of the heating component 2, and improving the heat utilization rate and heat exchange efficiency of the heating component 2.

[0089] In the above embodiment, the insulation component 3 can be made of either rigid insulation bricks or flexible insulation cotton or insulation pads, both of which can achieve the purpose of this application. When the insulation component 3 is made of rigid insulation bricks, the insulation cavity 31 is a groove cut into the top of the insulation bricks. When the insulation component 3 is made of flexible insulation cotton or insulation pads, the insulation cotton or insulation pads can be used to wrap the heat exchanger 21, thereby forming an insulation cavity 31 in the middle of the insulation material that is in contact with the outer surface of the heat exchanger 21.

[0090] In some preferred embodiments of this application, please refer to Figure 4 and Figure 15 The insulation component 3 includes a flexible insulation member 32, which is coated on the outside of the heating component 2 (i.e., the second surface 212 of the heating component 2). This can improve the fit between the flexible insulation member 32 and the outer surface of the heating component 2, avoid a heat dissipation gap between the heating component 2 and the insulation component 3, and help ensure the insulation effect of the insulation component 3. At the same time, compared with drilling an insulation cavity 31 on a rigid insulation brick, the assembly difficulty between the insulation component 3 and the heating component 2 can be reduced by coating the heating component 2 with the flexible insulation member 32. There is no need to drill an insulation cavity 31 of a preset size on the rigid insulation brick in advance. The flexible insulation member 32 has flexible deformation capabilities and can be fitted with the outer surface of the heat exchange component 21 of any shape, which helps improve the versatility of the insulation component 3.

[0091] In some embodiments of this application, please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 15 The ice melting device also includes a fixing component 5, which is connected to the chassis component 1 and is used to fix the heating component 2 and the insulation component 3 on the chassis component 1 so that the first surface 211 of the heating component 2 is close to the bottom of the chassis component 1 to prevent the heating component 2 and the insulation component 3 from falling during use, thereby causing the ice melting device to fail.

[0092] In some embodiments of this application, please refer to Figure 2 and Figure 4 The fixing component 5 and the chassis component 1 are detachably connected, which makes it easy to disassemble the fixing component 5 and thereby realize maintenance and replacement of the insulation component 3 and the heating component 2.

[0093] In some embodiments of the present application, the detachable connection between the fixing assembly 5 and the chassis assembly 1 can be a snap connection, a bolt connection, etc., all of which can achieve the purpose of the present application.

[0094] In some embodiments of the present application, the number of the fixing components 5 can be one or more. When the size of the heating component 2 is large, it is preferred to use multiple fixing components 5 to achieve the connection between the heating component 2 and the chassis component 1, such as Figure 2 shown.

[0095] As a specific embodiment of the present application, the fixing assembly 5 includes a bracket 51 and a connector 52. The bracket 51 has a groove for accommodating the heating assembly 2 and the insulation assembly 3. One side or both sides of the bracket 51 are fixed to the bottom of the chassis assembly 1 through the connector 52, thereby achieving the fixed arrangement of the heating assembly 2 and the insulation assembly 3 at the bottom of the chassis assembly 1. Figure 4 and Figure 15 shown.

[0096] See also Figures 1 to 16 The second aspect of the embodiment of the present application provides a heat pump unit, including the ice melting device in the above embodiment, and also including a chassis assembly 1 and a heat exchanger. The heat exchanger is arranged on the chassis assembly 1, and can receive the condensed water generated during the defrosting process of the heat exchanger through the water collecting tank 11 of the chassis assembly 1, and melt the frozen condensed water in the chassis assembly 1 through the heating assembly 2, so that the condensed water collected on the chassis assembly 1 can be discharged more smoothly, avoiding damage to the heat exchange pipe of the heat exchanger by the ice body, so that the heat pump unit can operate reliably for a long time under low temperature conditions.

[0097] In some embodiments of the present application, the heating component 2 includes a heat exchange cavity 22, and the refrigerant pipeline of the heat exchanger is connected to the heat exchange cavity 22, which is used to transport high-temperature heat exchange medium to the heat exchange cavity 22, so that the heating component 2 can directly use the refrigerant heat in the heat pump unit to melt the ice of the chassis component 1, without adding an additional heat source, which can reduce the overall energy consumption of the heat pump unit.

[0098] In some embodiments of the present application, the heat exchanger includes an evaporator, and the high-temperature gaseous working medium output by the refrigerant pipeline of the evaporator can be used as a high-temperature heat exchange working medium; at this time, the refrigerant output pipeline of the evaporator is connected to the first tube body 231 or the second tube body 232, and is used to input the high-temperature heat exchange working medium into the heat exchange cavity 22 of the heat exchange element 21.

[0099] In some embodiments of the present application, the heat exchanger also includes a condenser. The heat exchange medium flowing out of the heat exchange element 21 can flow into the condenser through the compressor, so that the refrigerant flows back to the original circulation path, avoiding the setting of the heating component 2 affecting the refrigerant circulation of the heat pump unit.

[0100] In some embodiments of the present application, the heat exchanger can be connected to the heat exchange cavity 22 of the heating component 2 through a bypass pipe. The bypass pipe can be controlled to be on and off as needed. When defrosting and ice-melting operations are required, the refrigerant pipe of the heat exchanger is connected to the heating component 2; when the heat pump unit is operating normally, the heating component 2 is turned off to allow the refrigerant to flow normally in the original circulation path.

[0101] In some embodiments of the present application, a first heat exchanger 6 and a second heat exchanger 7 are provided on the chassis assembly 1, one of the first heat exchanger 6 and the second heat exchanger 7 is an evaporator and the other is a condenser, which can be connected to the heating assembly 2 to realize the circulation of the refrigerant between the refrigerant pipeline of the heat pump unit and the heat exchange cavity 22.

[0102] It should be noted that, since the heating assembly 2 is provided at the bottom of the chassis assembly 1, the original defrost pipe assembly in the heat pump assembly can be eliminated, which is beneficial to optimizing the manufacturing cost of the heat pump unit.

[0103] In some embodiments of this application, please refer to Figure 1 and Figure 16 In order to facilitate the connection between the heat exchanger above the chassis assembly 1 and the heating assembly 2 below the chassis assembly 1, a hollow portion 131 is provided on the chassis body 13, so that the connecting pipe 23 (including the first tube body 231 and the second tube body 232) can extend from the hollow portion 131, thereby realizing the connection between the heating assembly 2 and the heat exchanger refrigerant pipeline.

[0104] See also Figures 1 to 16 In some embodiments of the present application, the working process of the above-mentioned ice melting device is as follows:

[0105] Step 1: When ice is detected or observed in the chassis assembly 1, the pipe between the heat exchange cavity 22 and the heat exchanger is connected;

[0106] Step 2: The high-temperature gaseous working medium (i.e., high-temperature heat exchange working medium) output from the heat exchanger refrigerant pipeline enters the heat exchange cavity 22 of the heating component 2 through the connecting pipe 23. The high-temperature heat exchange working medium transfers heat with the main body of the heat exchange element 21 inside the heat exchange cavity 22, and contacts the bottom of the chassis component 1 through the first surface 211 on the top of the heat exchange element 21 for heat exchange. During the heat exchange process, the heating component 2 is insulated by the insulation component 3 to prevent heat loss.

[0107] Step 3: After the ice in the water collecting tank 11 of the chassis assembly 1 melts, the liquid in the chassis assembly 1 is discharged through the drainage structure 12 to ensure the normal operation of the heat pump unit.

[0108] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0109] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0110] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An ice melting device, characterized in that: include: A heating component (2), wherein the outer surface of the heating component (2) comprises a first surface (211) and a second surface (212), wherein the first surface (211) is configured to be in contact with the chassis component (1) to increase the temperature of the chassis component (1); A heat preservation component (3), wherein the heat preservation component (3) is arranged on the second surface (212).

2. The ice melting device according to claim 1, characterized in that: The chassis assembly (1) is provided with a water collecting tank (11), and the heating assembly (2) is correspondingly arranged at the bottom of the water collecting tank (11).

3. The ice melting device according to claim 2, characterized in that: A baffle assembly (4) is provided on the chassis assembly (1), and the baffle assembly (4) and the chassis assembly (1) are enclosed to form the water collecting trough (11).

4. The ice melting device according to claim 2, characterized in that: The water collecting trough (11) is arranged in the peripheral edge area of ​​the chassis assembly (1).

5. The ice melting device according to any one of claims 2 to 4, characterized in that: The chassis assembly (1) is provided with a drainage structure (12) in communication with the water collecting tank (11).

6. The ice melting device according to any one of claims 1 to 4, characterized in that: The heating assembly (2) comprises a heat exchange component (21), wherein a heat exchange cavity (22) for accommodating a high-temperature heat exchange medium is provided inside the heat exchange component (21).

7. The ice melting device according to claim 6, characterized in that: The heat exchange element (21) is a plate-shaped structure.

8. The ice melting device according to claim 6, characterized in that: An enhanced heat exchange structure is provided on the inner wall of the heat exchange cavity (22).

9. The ice melting device according to claim 8, characterized in that: The enhanced heat exchange structure comprises a plurality of protruding portions (221) and a plurality of recessed portions (222), wherein the plurality of protruding portions (221) and the plurality of recessed portions (222) are arranged at intervals.

10. The ice melting device according to claim 6, characterized in that: There are multiple heat exchange cavities (22), and the connection between the multiple heat exchange cavities (22) includes parallel connection and / or series connection.

11. The ice melting device according to any one of claims 1 to 4, characterized in that: The heat preservation component (3) is provided with a heat preservation cavity (31), and the heating component (2) is embedded in the heat preservation cavity (31).

12. The ice melting device according to claim 11, characterized in that: The heat-insulating component (3) comprises a flexible heat-insulating part (32), and the flexible heat-insulating part (32) is coated on the outside of the heating component (2).

13. The ice melting device according to any one of claims 1 to 4, characterized in that: It also includes a fixing assembly (5), which is connected to the chassis assembly (1) and is used to fix the heating assembly (2) and the heat-insulating assembly (3) on the chassis assembly (1).

14. A heat pump unit, characterized in that: The ice melting device comprises the ice melting device according to any one of claims 1 to 13, and further comprises a chassis assembly (1) and a heat exchanger, wherein the heat exchanger is arranged on the chassis assembly (1).

15. The heat pump unit according to claim 14, characterized in that: The heating component (2) includes a heat exchange cavity (22), and the refrigerant pipeline of the heat exchanger is connected to the heat exchange cavity (22) and is used to transport high-temperature heat exchange medium to the heat exchange cavity (22).

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