Door body assembly and refrigeration equipment
By setting up a heat dissipation tube in the door assembly of the refrigerated storage device, the heat in the preset structure is directed to the glass for heating, which solves the condensation problem, improves the refrigeration effect, reduces energy consumption, and improves the user experience.
Patent Information
- Application Number
- CN202421141842.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
In existing refrigerated storage equipment, glass doors are prone to condense in high humidity environments. Traditional solutions such as blower blowing or heating film increase energy consumption, affecting the user experience.
A heat dissipation tube is installed in the door body assembly to guide the heat in the preset structure to the glass for heating to avoid condensation, and at the same time, use waste heat to improve the refrigeration effect and reduce energy consumption.
It effectively reduces energy consumption, improves user experience, avoids condensation problems, and improves the refrigeration effect.
Smart Images
Figure CN222298274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a door body component and refrigeration equipment. Background Art
[0002] Most of the existing refrigerated storage devices for beverages, alcohol, medicines, etc., such as freezers, wine cabinets, medical refrigerators, etc., are equipped with glass doors for aesthetics and to facilitate observation of stored items. However, when the ambient temperature and humidity are too high, condensation forms on the outside of the glass door, which affects the observation of the food in the cabinet and is not beautiful, so it needs to be cleaned regularly. To avoid condensation on the glass door, the traditional treatment method is to use a fan to blow air on the outer surface of the glass door to make it dry; or use a heating film to maintain the temperature on both sides of the glass. Although the above solution can solve the condensation problem, in actual use, the energy consumption increases, accounting for one-third of the total energy consumption of the machine, and the airflow blown by the fan will generate increased noise when passing through the door body, seriously affecting the user experience. Utility Model Content
[0003] In order to solve the technical problem in the prior art that in order to avoid condensation on the glass, a fan is needed to keep it dry or a heating film is used to maintain the temperature, which increases energy consumption and affects the user experience, a door body assembly and refrigeration equipment are provided which utilizes a heat dissipation pipe arranged in a mouth frame to guide the heat in the heat exchange cycle in a preset structure to the glass for heating, thereby avoiding condensation on the glass and increasing the cooling effect of the heat exchange cycle.
[0004] A door assembly, comprising:
[0005] A mouth frame, wherein a mounting opening is formed in the middle of the mouth frame, and a receiving groove surrounding the mounting opening is arranged on the mouth frame;
[0006] A heat dissipation pipe, part or all of which is disposed in the receiving groove;
[0007] The door assembly is applied to a preset structure, and a heat exchange circulation system is arranged in the preset structure, and the heat exchange circulation system can heat the heat dissipation pipe.
[0008] The opening frame is rotatably arranged on the preset structure via a rotating shaft, a connecting hole is arranged in the middle of the rotating shaft, and part of the heat dissipation pipe is arranged inside the preset structure via the connecting hole.
[0009] Glass is arranged in the installation opening, and the heat dissipation pipe is in contact with and cooperates with the glass.
[0010] A heat conducting structure is arranged between the heat dissipation pipe and the glass.
[0011] The door body assembly also includes a heat transfer structure, and the heat dissipation pipe and the heat exchange circulation system can both exchange heat with the heat transfer structure. The heat transfer structure has a connection state that enables heat transfer between the heat dissipation pipe and the heat exchange circulation system, and the heat transfer structure has a disconnection state that disconnects heat transfer between the heat dissipation pipe and the heat exchange circulation system.
[0012] The heat transfer structure includes a first heat transfer sheet and a second heat transfer sheet, the heat dissipation pipe is arranged on the first heat transfer sheet, and the second heat transfer sheet is arranged on the heat exchange circulation system. When the heat transfer structure is in the engaged state, the first heat transfer sheet and the second heat transfer sheet are attached to each other; when the heat transfer structure is in the disconnected state, there is a distance between the first heat transfer sheet and the second heat transfer sheet.
[0013] The first heat transfer sheet includes a mounting portion and a deformation portion, the heat dissipation pipe is arranged on the mounting portion, and the deformation portion can be attached to the second heat transfer sheet or form the distance.
[0014] The heat exchange circulation system comprises a compressor and a condenser. A connecting pipe is provided between the compressor and the condenser. The connecting pipe is attached to a side of the second heat transfer plate away from the first heat transfer plate.
[0015] The heat dissipation pipe comprises a heat transfer section and a heat exchange section. The heat transfer section is attached to the first heat transfer sheet. The heat exchange section is arranged in the containing groove, and the lowest point of the heat exchange section is higher than the highest point of the heat transfer section.
[0016] The heat exchange section has a heat exchange inlet and a heat exchange outlet. A vertical connecting pipe is provided between the heat transfer section and the heat exchange inlet, and a horizontal connecting pipe is provided between the heat transfer section and the heat exchange outlet.
[0017] A one-way flow structure is arranged at the heat exchange inlet.
[0018] An on-off mechanism is provided at the heat exchange inlet.
[0019] A temperature detection mechanism is provided at the heat exchange inlet, and the temperature detection mechanism is electrically connected to the on-off mechanism.
[0020] A first refrigerant is arranged in the heat dissipation pipe, and a second refrigerant is arranged in the heat exchange circulation system.
[0021] The heat dissipation pipe is made of flexible material.
[0022] A refrigeration device comprises the door assembly mentioned above.
[0023] The door body assembly and refrigeration equipment provided by the utility model can use the heat dissipation pipe to guide the heat in the heat exchange circulation system in the preset structure to the door body by means of a heat dissipation pipe in the mouth frame, so as to heat the glass arranged on the mouth frame to avoid condensation on the glass. At the same time, since the preset structure needs to be cooled, the heat generated by the heat exchange circulation system in the preset structure is waste heat, and the heat dissipation pipe utilizes this waste heat, that is, there is no need to set the fan or heating film in the prior art to reduce energy consumption, and the exhaust temperature of the compressor in the heat exchange circulation system can also be reduced to improve the refrigeration effect, thereby effectively reducing the energy consumption of the preset structure where the door body assembly is located, and effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the structure of a door assembly provided in an embodiment of the utility model;
[0025] Figure 2 Another structural schematic diagram of a door assembly provided by an embodiment of the utility model;
[0026] In the figure:
[0027] 1. Mouth frame; 11. Mounting mouth; 12. Accommodating groove; 2. Heat dissipation pipe; 3. Heat exchange circulation system; 41. First heat transfer plate; 42. Second heat transfer plate; 411. Mounting part; 412. Deformation part; 31. Connecting pipe; 21. Heat transfer section; 23. Vertical connecting pipe; 24. Horizontal connecting pipe. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0031] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] Most existing devices for refrigerating and storing items such as beverages, alcohol, and medicines, such as freezers, wine cabinets, and medical refrigerators, are equipped with glass doors for their aesthetics and to facilitate observation of stored items. However, when the ambient temperature and humidity are too high, condensation forms on the outside of the glass door, which affects the observation of the food in the cabinet, is not aesthetically pleasing, and requires regular cleaning. To avoid condensation on the glass door, the traditional approach is to use a fan to blow air on the outer surface of the glass door to dry it, or to use a heating film to maintain the temperature on both sides of the glass. Although the above solution can solve the condensation problem, in actual use, the energy consumption increases, accounting for one-third of the total energy consumption of the machine, and the airflow blown by the fan will generate increased noise when passing through the door body, seriously affecting the user experience. To this end, the present application provides a method such as Figure 1 and Figure 2The door body assembly shown includes: a mouth frame 1, a mounting opening 11 is formed in the middle of the mouth frame 1, and the mounting opening 11 is used to install structures such as glass to achieve the purpose of closing the opening of the preset structure by the door body, and the mouth frame 1 is provided with a receiving groove 12 surrounding the mounting opening 11; a heat dissipation pipe 2, part or all of the heat dissipation pipe 2 is arranged in the receiving groove 12, and the setting position of the heat dissipation pipe 2 is limited by the receiving groove 12 to ensure that the heat dissipation pipe 2 can be arranged around the mounting opening 11, so that the heat dissipation pipe 2 can heat the glass set in the mounting opening 11 at any position of the mounting opening 11, thereby ensuring the heating effect on the glass; the door body assembly is applied to a preset structure, and a heat exchange circulation system 3 is arranged in the preset structure, and the heat exchange circulation system 3 can heat the heat dissipation pipe 2. By arranging the heat dissipation pipe 2 in the mouth frame 1, the heat in the heat exchange circulation system 3 in the preset structure can be drained to the door body by the heat dissipation pipe 2, so that the glass set on the mouth frame 1 can be heated to avoid condensation on the glass. At the same time, because the preset structure needs to be cooled, the heat generated by the heat exchange circulation system 3 in the preset structure is waste heat, and the heat dissipation pipe 2 utilizes this waste heat, that is, there is no need to set up a fan or heating film in the prior art to reduce energy consumption, and the exhaust temperature of the compressor in the heat exchange circulation system 3 can also be reduced to improve the cooling effect, which effectively reduces the energy consumption of the preset structure where the door body assembly is located, and effectively improves the user experience.
[0034] Since the mouth frame 1 needs to close and open the opening of the preset structure, the mouth frame 1 is rotatably arranged on the preset structure through a rotating shaft. Since the heat dissipation pipe 2 is arranged on the mouth frame 1, it will also rotate with the rotation of the mouth frame 1. Since the heat exchange circulation system 3 in the preset structure is fixedly arranged in the preset structure, it cannot move with the rotation of the mouth frame 1 and the heat dissipation pipe 2. For this reason, a connecting hole is arranged in the middle of the rotating shaft, and part of the heat dissipation pipe 2 is arranged inside the preset structure through the connecting hole. Part of the heat dissipation pipe 2 arranged inside the preset structure can transfer heat with the heat exchange circulation system 3, so that the heat in the heat exchange circulation system 3 is drained to the mouth frame 1 and the installation port 11, so as to achieve heating of the glass installed in the installation port 11, effectively avoid condensation on the glass, and reliably guide and utilize the waste heat of the heat exchange circulation system 3, reduce the exhaust temperature of the compressor in the heat exchange circulation system 3, improve the refrigeration effect of the heat exchange circulation system 3, and further reduce the energy consumption of the preset structure.
[0035] Glass is arranged in the installation opening 11, and the heat dissipation pipe 2 contacts and cooperates with the glass. Since the heat dissipation pipe 2 is arranged around the installation opening 11, all edges of the glass can be heated by the heat dissipation pipe 2, so that the heat of the heat dissipation pipe 2 can be smoothly transferred to the middle of the glass, thereby ensuring the heating effect on the glass and avoiding condensation at any position of the glass.
[0036] A heat-conducting structure is provided between the heat-dissipating pipe 2 and the glass, which further improves the heat transfer between the heat-dissipating pipe 2 and the glass, improves the heating effect on the glass, and also prevents the vibration of the door assembly during movement, which causes the glass and the heat-dissipating pipe 2 to collide and be damaged, thereby improving the structural reliability of the door assembly. Preferably, the heat-conducting structure is made of heat-conducting silicone grease material.
[0037] The door assembly also includes a heat transfer structure, and both the heat dissipation pipe 2 and the heat exchange circulation system 3 can exchange heat with the heat transfer structure. The heat transfer structure has a connection state for heat transfer between the heat dissipation pipe 2 and the heat exchange circulation system 3, and a disconnection state for disconnecting heat transfer between the heat dissipation pipe 2 and the heat exchange circulation system 3. By setting up a heat transfer structure, it is possible to control whether heat transfer is performed between the heat dissipation pipe 2 and the heat exchange circulation system 3. On the premise of ensuring that the glass is heated to a certain temperature to avoid condensation, it is possible to avoid the problem of excessively high glass temperature caused by the heat exchange circulation system 3 always heating the glass through the heat dissipation pipe 2, thereby avoiding the effect of refrigeration of items in the preset structure being affected by excessive glass temperature, and also avoiding accidents such as damage and injury to people caused by excessive glass temperature, thereby improving the reliability of the door assembly. When the glass is heated to a certain temperature, no condensation will be generated on the glass. At this time, the heat transfer structure can be switched from the engaged state to the disconnected state, and the heat pipe 2 stops heating the glass. Then the temperature of the glass will gradually decrease. When condensation may occur on the glass, the heat transfer structure is switched to the engaged state and the glass can be heated again.
[0038] Specifically, the heat transfer structure includes a first heat transfer sheet 41 and a second heat transfer sheet 42, the heat dissipation pipe 2 is arranged on the first heat transfer sheet 41, and the second heat transfer sheet 42 is arranged on the heat exchange circulation system 3. When the heat transfer structure is in the engaged state, the first heat transfer sheet 41 and the second heat transfer sheet 42 are in contact with each other; when the heat transfer structure is in the disconnected state, there is a distance between the first heat transfer sheet 41 and the second heat transfer sheet 42. The heat pipe 2 is arranged on the first heat transfer sheet 41, and the contact area between the heat pipe 2 and the heat exchange circulation system 3 is adjusted from the multiple line segments of the original heat pipe 2 to the plane structure of the first heat transfer sheet 41, thereby effectively improving the efficiency of heat transfer to the heat pipe 2. Similarly, the heat exchange circulation system 3 also uses the form of a pipeline to flow the refrigerant, so the second heat transfer sheet 42 is arranged to improve the heat transfer efficiency of the heat exchange circulation system 3. Then, the first heat transfer sheet 41 and the second heat transfer sheet 42 are attached, so that the heat can be quickly transferred between the heat pipe 2 and the heat exchange circulation system 3, thereby ensuring that the heat is transferred to the heat pipe 2 and the glass is reliably heated. When the glass does not need to be heated, the second heat transfer sheet 42 is moved or the first heat transfer sheet 41 is moved to form a gap between the first heat transfer sheet 41 and the second heat transfer sheet 42, so that the heat cannot be transferred through the first heat transfer sheet 41 and the second heat transfer sheet 42, thereby stopping the heating of the glass.
[0039] Since the positions of the heat exchange circulation system 3 and the heat dissipation pipe 2 are relatively fixed, in order to avoid the problem that the movement of the heat exchange circulation system 3 and the heat dissipation pipe 2 will cause the preset structure to be unreliable, the first heat transfer plate 41 includes a mounting portion 411 and a deformation portion 412, the heat dissipation pipe 2 is arranged on the mounting portion 411, and the deformation portion 412 can be attached to or form the spacing with the second heat transfer plate 42, and the heat dissipation pipe 2 is fixed by the mounting portion 411, while the mounting portion 411 and the heat dissipation pipe 2 remain fixed, and the deformation portion 412 is fixed to the heat dissipation pipe 2. No heat pipe 2 is arranged on 412, and the deformation part 412 can generate deformation, and the purpose of whether the first heat transfer sheet 41 is attached to the second heat transfer sheet 42 is realized by deformation. When the first heat transfer sheet 41 and the second heat transfer sheet 42 need to be attached, the deformation part 412 is deformed in the direction of the second heat transfer sheet 42 to achieve attachment with the second heat transfer sheet 42, and heat transfer can be performed. When heat transfer is not required, the deformation part 412 is deformed in the direction away from the second heat transfer sheet 42 to achieve separation from the second heat transfer sheet 42. Among them, the deformation part 412 adopts a bimetallic structure. When the temperature of the bimetallic structure reaches a certain value, the bimetallic will be heated and deformed, and when the temperature of the bimetallic structure decreases, the bimetallic will return to its original state, thereby achieving attachment and separation of the first heat transfer sheet 41 and the second heat transfer sheet 42, and further realizing automatic control of whether the heat pipe 2 obtains heat to heat the glass. The first heat transfer sheet 41 and the second heat transfer sheet 42 are both metal sheets, wherein an additional layer of metal sheet is provided at a partial area of the first heat transfer sheet 41 to form a bimetallic structure, so that the first heat transfer sheet 41 in this area has deformation capability to achieve state switching.
[0040] The heat exchange circulation system 3 includes a compressor and a condenser. A connecting pipe 31 is provided between the compressor and the condenser. The connecting pipe 31 is attached to a side of the second heat transfer plate 42 away from the first heat transfer plate 41 . The exhaust gas of the compressor is sent to the condenser for heat release, and the refrigerant after heat release is sent to the evaporator for cooling, thereby realizing the refrigeration effect of the preset structure on the objects. The exhaust gas temperature of the compressor is relatively high, generally about 80 to 100°C, and the temperature for storing objects in the preset structure is generally 4 to 10°C, that is, the heat exchange circulation system 3 needs to release a large amount of heat to meet the requirements of the preset structure. This part of heat cannot be used for the preset structure and becomes waste heat. The present application uses the heat dissipation pipe 2 to transfer this part of waste heat, and the exhaust gas temperature of the compressor is relatively high, that is, the temperature of the refrigerant in the connecting pipe 31 is relatively high, which is sufficient to meet the heating demand for the glass. At the same time, cooling the refrigerant at the connecting pipe 31 can further improve the heat absorption capacity of the refrigerant at the evaporator, thereby improving the refrigeration effect of the preset structure, thereby reducing the energy consumption of the preset structure from two aspects of avoiding setting up additional structures to prevent glass condensation and improving the refrigeration effect, effectively improving the user experience.
[0041] Since part of the heat dissipation pipe 2 is arranged in the preset structure through the connecting hole, the heat dissipation pipe 2 can be divided into two parts, that is, the heat dissipation pipe 2 includes a heat transfer section 21 and a heat exchange section (not shown in the figure), the heat transfer section 21 is attached to the first heat transfer plate 41, the heat exchange section is arranged in the containing groove 12, and the lowest point of the heat exchange section is higher than the highest point of the heat transfer section 21. When the heat of the first heat transfer plate 41 is transferred to the heat dissipation pipe 2, the heat will be absorbed by the heat transfer section 21. At this time, the refrigerant in the heat transfer section 21 will be heated and undergo a phase change. The gaseous refrigerant after the phase change will naturally flow upward and flow into the heat exchange section. The gaseous refrigerant in the heat exchange section can flow smoothly along the heat exchange section and heat the glass at the same time. After completing the heating of the glass, the gaseous refrigerant will undergo a phase change again and become a liquid refrigerant. Under the action of gravity, the liquid refrigerant will flow downward along the heat exchange section and flow back to the heat transfer section 21, thereby realizing heat transfer and circulation of the refrigerant.
[0042] The heat exchange section has a heat exchange inlet and a heat exchange outlet, a vertical connecting pipe 23 is provided between the heat transfer section 21 and the heat exchange inlet, and a horizontal connecting pipe 24 is provided between the heat transfer section 21 and the heat exchange outlet. The vertical connecting pipe 23 is used to reduce the resistance of the gaseous refrigerant flowing into the heat exchange section, while the horizontal connecting pipe 24 can increase the resistance of the gaseous refrigerant flowing into the heat exchange section, so that the gaseous refrigerant can only flow into the heat exchange section through the heat exchange inlet and can only flow out of the heat exchange section through the heat exchange outlet, thereby ensuring the reliable circulation of the refrigerant, avoiding the liquid refrigerant blocking the heat exchange inlet and failing to heat, and improving the heating reliability of the heat pipe 2 on the glass.
[0043] Preferably, Figure 1 As shown, the shape of the installation port 11 is rectangular, and the heat exchange section is also rectangular and surrounds the installation port 11. The heat transfer section 21 is located at the bottom of the preset structure, and the heat exchange section includes two vertical parts and two horizontal parts. When the heat transfer section 21 is heated to generate gaseous refrigerant, the gaseous refrigerant will flow upward along one of the vertical parts through the heat exchange inlet, and finally reach the uppermost horizontal part. At this time, part of the gaseous refrigerant will release heat and change phase into liquid refrigerant, and the remaining part of the gaseous refrigerant can continue to flow along this horizontal part and enter another vertical part, and finally reach another horizontal part, and then flow back to the heat transfer section 21 through the heat exchange outlet, and the liquid refrigerant formed after the phase change can flow under the driving action of gravity and the gaseous refrigerant, and can also finally flow back to the heat transfer section 21 through the heat exchange outlet, thereby realizing the circulation of the refrigerant.
[0044] Furthermore, a one-way flow structure is provided at the heat exchange inlet. The one-way flow structure is used to limit the flow direction of the refrigerant, ensure the reliable circulation of the refrigerant, avoid the liquid refrigerant blocking the heat exchange inlet and failing to heat, and improve the heating reliability of the heat pipe 2 on the glass. Preferably, the one-way flow structure is a one-way valve.
[0045] In order to avoid the over-high temperature of the refrigerant in the heat exchange section due to the untimely deformation of the deformation part 412, an on-off mechanism is provided at the heat exchange entrance. The on-off mechanism is used to cut off the flow of the refrigerant in the heat transfer pipe 2. At this time, although the first heat transfer plate 41 is still attached to the second heat transfer plate 42 to heat the heat transfer section 21, the gaseous refrigerant in the heat transfer section 21 cannot flow into the heat exchange section again due to the cut-off of the on-off mechanism, thereby avoiding the problem of the heat exchange section heating the glass to an over-high temperature. Preferably, the on-off mechanism is preferably a solenoid valve.
[0046] In order to achieve reliable control of the on-off mechanism, a temperature detection mechanism is provided at the heat exchange entrance, and the temperature detection mechanism is electrically connected to the on-off mechanism. When the temperature of the refrigerant detected at the heat exchange entrance is higher than the set value, it indicates that the heating temperature of the glass by the heat exchange section exceeds the safety limit at this time, and the on-off mechanism is controlled to cut off the heat exchange entrance, stop the gaseous refrigerant from flowing into the heat exchange section, avoid the problem of further increase in the glass temperature, and then avoid the problem that the temperature of the glass affects the refrigeration temperature in the preset structure, compensate for the deformation error of the deformation part 412, ensure the reliability of the door body assembly, and reduce the energy consumption of the preset structure. Among them, the temperature detection mechanism is preferably a temperature sensor. The temperature detection mechanism is arranged downstream of the solenoid valve. At this time, the temperature detection mechanism can accurately detect the temperature of the heat exchange section or the temperature of the refrigerant in the heat exchange section, thereby improving the control reliability of the solenoid valve.
[0047] The heat dissipation tube 2 is provided with a first refrigerant, and the heat exchange circulation system 3 is provided with a second refrigerant. That is, the heat dissipation tube 2 and the heat exchange circulation system 3 use two different refrigerants for heat exchange, wherein the heat exchange circulation system 3 needs to ensure the refrigeration effect of the preset structure, and needs to use a refrigerant with high heat exchange efficiency (such as R32, R410a, etc.), and the temperature required for the glass is not high. Therefore, the heat dissipation tube 2 needs to be filled with a low boiling point refrigerant (such as acetone with a boiling point of 56°C), and the heat dissipation tube 2 absorbs the refrigerant temperature in the connecting tube 31 to undergo phase change and generate high-temperature steam, thereby realizing reliable heating of the glass.
[0048] Since the door frame 1 needs to rotate on the preset structure, in order to avoid the heat dissipation pipe 2 from being damaged due to the rotation, the heat dissipation pipe 2 is made of a flexible material, thereby ensuring the structural reliability of the heat dissipation pipe 2 and the door assembly.
[0049] Example
[0050] The compressor in the heat exchange circulation system 3 in the preset structure is running, and the exhaust temperature is relatively high, generally about 80-100°C, and heat is transferred to the heat dissipation pipe 2 through the first heat transfer plate 41 and the second heat transfer plate 42. The heat dissipation pipe 2 is filled with a low-boiling-point working medium, which absorbs the heat from the high-temperature exhaust pipe and evaporates to generate high-temperature steam, which flows into the hose to heat the glass.
[0051] As the temperature of the deformable portion 412 continues to rise and reaches the deformation temperature, preferably 65° C., the deformable portion 412 is disconnected from the second heat transfer plate 42 to cut off the heat source in the heat dissipation tube 2. When the temperature of the deformable portion 412 decreases and the deformation is restored, the heat dissipation tube 2 is heated again.
[0052] To avoid excessive temperature in the hose, causing the problem of refrigeration temperature fluctuation and increased energy consumption of the preset structure, or even damaging the hose. When the temperature sensor detects that the temperature of the gaseous refrigerant at the heat exchange outlet is higher than a certain value, preferably 75°C, the solenoid valve is powered on and closed, cutting off the source of high-temperature gaseous refrigerant in the hose. When the temperature drops below the safety limit, preferably 65°C, the solenoid valve is powered off and opened, and the high-temperature gas in the heat exchange tube flows back into the hose to heat the glass.
[0053] A refrigeration device comprises the above-mentioned door assembly. The refrigeration device has a refrigeration compartment, and the door assembly is arranged at the opening of the refrigeration compartment, so as to ensure reliable refrigeration of the refrigeration compartment. The refrigeration device constitutes the preset structure.
[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A door assembly, characterized in that: include: A mouth frame (1), wherein a mounting opening (11) is formed in the middle of the mouth frame (1), and a receiving groove (12) surrounding the mounting opening (11) is provided on the mouth frame (1); A heat dissipation pipe (2), wherein part or all of the heat dissipation pipe (2) is arranged in the containing groove (12); The door body assembly is applied to a preset structure, and a heat exchange circulation system (3) is arranged in the preset structure. The heat exchange circulation system (3) can heat the heat dissipation pipe (2).
2. The door assembly according to claim 1, characterized in that: The port frame (1) is rotatably arranged on the preset structure via a rotating shaft, a connecting hole is arranged in the middle of the rotating shaft, and part of the heat dissipation pipe (2) is arranged inside the preset structure via the connecting hole.
3. The door assembly according to claim 2, characterized in that: Glass is arranged in the installation opening (11), and the heat dissipation pipe (2) is in contact with and cooperates with the glass.
4. The door assembly according to claim 3, characterized in that: A heat-conducting structure is provided between the heat dissipation pipe (2) and the glass.
5. The door assembly according to claim 1, characterized in that: The door assembly also includes a heat transfer structure, and the heat dissipation pipe (2) and the heat exchange circulation system (3) are both capable of performing heat exchange with the heat transfer structure. The heat transfer structure has a connection state that enables heat transfer between the heat dissipation pipe (2) and the heat exchange circulation system (3), and a disconnection state that disconnects heat transfer between the heat dissipation pipe (2) and the heat exchange circulation system (3).
6. The door assembly according to claim 5, characterized in that: The heat transfer structure comprises a first heat transfer sheet (41) and a second heat transfer sheet (42); the heat dissipation pipe (2) is arranged on the first heat transfer sheet (41), and the second heat transfer sheet (42) is arranged on the heat exchange circulation system (3); when the heat transfer structure is in the engaged state, the first heat transfer sheet (41) and the second heat transfer sheet (42) are in contact with each other; when the heat transfer structure is in the disconnected state, there is a distance between the first heat transfer sheet (41) and the second heat transfer sheet (42).
7. The door assembly according to claim 6, characterized in that: The first heat transfer sheet (41) comprises a mounting portion (411) and a deformation portion (412); the heat dissipation pipe (2) is arranged on the mounting portion (411); and the deformation portion (412) is capable of being attached to or forming the spacing with the second heat transfer sheet (42).
8. The door assembly according to claim 6, characterized in that: The heat exchange circulation system (3) comprises a compressor and a condenser, a connecting pipe (31) is provided between the compressor and the condenser, and the connecting pipe (31) is attached to a side of the second heat transfer plate (42) away from the first heat transfer plate (41).
9. The door assembly according to claim 6, characterized in that: The heat dissipation pipe (2) comprises a heat transfer section (21) and a heat exchange section, the heat transfer section (21) being attached to the first heat transfer plate (41), the heat exchange section being arranged in the containing groove (12), and the lowest point of the heat exchange section being higher than the highest point of the heat transfer section (21).
10. The door assembly according to claim 9, characterized in that: The heat exchange section has a heat exchange inlet and a heat exchange outlet, a vertical connecting pipe (23) is provided between the heat transfer section (21) and the heat exchange inlet, and a horizontal connecting pipe (24) is provided between the heat transfer section (21) and the heat exchange outlet.
11. The door assembly according to claim 10, characterized in that: A one-way flow structure is arranged at the heat exchange inlet.
12. The door assembly according to claim 10, characterized in that: An on-off mechanism is provided at the heat exchange inlet.
13. The door assembly according to claim 12, characterized in that: A temperature detection mechanism is provided at the heat exchange inlet, and the temperature detection mechanism is electrically connected to the on-off mechanism.
14. The door assembly according to claim 1, characterized in that: A first refrigerant is arranged in the heat dissipation pipe (2), and a second refrigerant is arranged in the heat exchange circulation system (3).
15. The door assembly according to claim 1, characterized in that: The heat dissipation pipe (2) is made of flexible material.
16. A refrigeration device, characterized in that: The invention comprises the door assembly according to any one of claims 1 to 15.