Phase change evaporation device and heat dissipation equipment
By inserting ribs into the phase change cavity of the phase change evaporation device and supporting the removable fin evaporator, the problem of insufficient filling amount of phase change material in the prior art is solved, and the heat exchange efficiency and reliability are significantly improved.
Patent Information
- Application Number
- CN202422230679.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing phase change material heat exchangers need to lay a large number of reinforcement ribs to prevent the phase change material from expanding, resulting in a reduction in the filling amount of the phase change material and poor heat exchange effect.
A phase change evaporation device is designed, and the phase change cavity is embedded with ribs. The ribs not only support and stabilize the cavity structure, but also cut the phase change material into small pieces to prevent expansion and damage, while increasing the filling amount of the material. The device also supports a removable fin evaporator, increasing the heat exchange area.
By increasing the filling amount of phase change materials and optimizing the heat exchange area, the overall heat exchange efficiency and long-term reliability of the phase change evaporation device are improved, while reducing operation and maintenance costs.
Smart Images
Figure CN223021017U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of evaporators, and particularly relates to a phase change evaporation device and a heat dissipation device. Background Art
[0002] In order to reduce the energy consumption of air conditioners, existing intelligent control systems have carried out refined management of the operating states of air conditioners. At the same time, some precision computer room air conditioners have improved the energy efficiency ratio by improving refrigerants and compressors. Some air conditioners also adopt the fluorine pump mode, and only use the working fluid pump to transport the refrigerant when the outdoor temperature is relatively low, thus saving the power consumption of the compressor. Adjusting the heat exchanger structure with phase change materials can further effectively reduce the energy consumption of air conditioners.
[0003] However, in order to enhance the heat transfer effect, the current phase change material heat exchanger usually adopts a design with a relatively thin cavity wall thickness. However, this design requires a large number of reinforcing fins to be laid inside the cavity to prevent the phase change material from expanding and damaging the cavity. Since these fins occupy a large amount of internal space, the filling amount of the phase change material is reduced, thereby affecting the heat transfer effect.
[0004] Therefore, there are defects and deficiencies in the prior art and it needs to be further improved and developed. Summary of the Utility Model
[0005] In view of the above deficiencies of the prior art, the purpose of the present application is to provide a phase change evaporation device and a heat dissipation device, aiming to solve the problem that a large number of reinforcing fins are laid inside the cavity of the phase change material heat exchange device in the prior art, resulting in a reduction in the filling amount of the phase change material and poor heat transfer effect.
[0006] One technical solution adopted by the present application to solve the technical problem is as follows: A phase change evaporation device for air conditioner heat exchange, which includes:
[0007] A phase change cavity, the phase change cavity having a length direction and a width direction, the phase change cavity being used for filling a phase change material, the phase change cavity having a first surface and a second surface, the first surface being parallelly arranged above the second surface, and the planar area of the first surface being smaller than the planar area of the second surface;
[0008] A fin evaporation member, the fin evaporation member being detachably arranged on the second surface; the fin evaporation member includes a flow channel and a plurality of fins, the flow channel being fixedly arranged on the plurality of fins and being in fit with the second surface;
[0009] Wherein, a rib plate is embedded in the phase change cavity, and the rib plate is used for separating the phase change material.
[0010] Optionally, the rib plate is arranged in a wavy, zigzag, V-shaped or W-shaped structure.
[0011] Optionally, the rib plate is arranged along the width direction of the phase change cavity, and the rib plate is located in the area of 1 / 2 to 2 / 3 of the phase change cavity along the length direction.
[0012] Optionally, the rib plate is provided with a plurality of upper support points and a plurality of lower support points. All the plurality of upper support points protrude relative to the first surface, and all the plurality of lower support points abut against the second surface.
[0013] Optionally, a plurality of filler holes are provided on the side wall of the phase change cavity. All the plurality of filler holes are used to fill the phase change material into the phase change cavity, and the filling amount of the phase change material is set to 70% to 80% of the volume of the phase change cavity.
[0014] Optionally, all the plurality of fins are vertically and spaced apart from the second surface.
[0015] Optionally, all the plurality of fins are provided with fixing notches, and the fixing notches are used to fix the flow channel.
[0016] Optionally, the flow channel is fixedly arranged in a serpentine shape in a plurality of the fixing notches.
[0017] Optionally, the flow channel is provided with an inlet section and an outlet section, and both the inlet section and the outlet section are arranged in parallel and in contact with the second surface.
[0018] Another technical solution adopted by the present application to solve the technical problem is as follows: A heat dissipation device includes the phase change evaporation device as described above.
[0019] Compared with the prior art, the present application provides a phase change evaporation device and a heat dissipation device. The plane area of the first surface of the phase change evaporation device is smaller than the plane area of the second surface, thereby increasing the heat exchange area of the phase change cavity and supporting a detachable fin evaporation member. The rib plate embedded in the phase change cavity not only supports and stabilizes the cavity structure, but also cuts the phase change material into several small pieces, effectively preventing the cavity damage caused by the expansion of the phase change material. At the same time, the filling amount of the material is increased, and the heat exchange effect of the phase change evaporation device is improved. Furthermore, the problem that the fins in the prior art phase change evaporation device occupy the internal space and reduce the filling amount of the phase change material is solved, and the overall heat exchange efficiency of the phase change evaporation device and the long-term reliability of the device are improved. Through the detachable setting of the fin evaporation member, the equipment maintenance of the phase change evaporation device is more convenient, and the operation and maintenance cost of the phase change evaporation device is effectively reduced. Description of the Drawings
[0020] Figure 1 is a three-dimensional structural schematic diagram of the phase change evaporation device provided in the present application;
[0021] Figure 2It is a schematic three-dimensional exploded view of the phase change evaporation device provided in this application;
[0022] Figure 3 It is another schematic three-dimensional exploded view of the phase change evaporation device provided in this application;
[0023] Figure 4 It is a right view of the phase change evaporation device provided in this application;
[0024] Figure 5 It is provided in this application Figure 4 A schematic cross-sectional view along the I-I direction in
[0025] Explanation of reference numerals:
[0026] 10. Phase change evaporation device; 11. Phase change cavity; 111. First surface; 112. Second surface; 113. Rib plate; 1131. Upper support point; 1132. Lower support point; 114. Filler hole; 12. Fin evaporation member; 121. Flow channel; 1211. Liquid inlet section; 1212. Liquid outlet section; 122. Fin; 1221. Fixed notch. Detailed description of the specific implementation
[0027] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.
[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0030] Please refer to Figure 1 and Figure 3 In the first embodiment of the present application, a phase change evaporation device 10 for air conditioner heat exchange is provided. The phase change evaporation device 10 includes a phase change cavity 11 and a fin evaporation member 12. The fin evaporation member 12 includes a flow channel 121 and a plurality of fins 122. When the external ambient temperature rises, external heat is transferred to the flow channel 121 through the plurality of fins 122. The plurality of fins 122 increase the surface area in contact with the flow channel 121, thereby improving the heat transfer efficiency. When the refrigerant flows in the flow channel 121, passes through the fins 122 and contacts the surface of the phase change cavity 11, it absorbs the heat. After the refrigerant reaches a certain temperature, it undergoes a gas-liquid phase change and changes from a liquid state to a gaseous state. This process can absorb a large amount of thermal energy, which helps to maintain the stability of the system temperature. At the same time, the phase change material filled in the phase change cavity 11 also absorbs heat. Through the phase change process from a liquid state to a solid state, this process can also absorb a large amount of heat to ensure the stability of the system temperature. During the phase change process of the phase change material from a liquid state to a solid state, the volume will expand. A rib plate 113 is designed inside the phase change cavity 11. The rib plate 113 not only enhances the structural stability of the cavity but also effectively divides the phase change material into multiple small pieces, avoiding damage to the structure of the phase change cavity 11 caused by the expansion of the phase change material.
[0031] Please refer to Figure 1 and Figure 3, in some embodiments, the phase change evaporation device 10 includes a phase change cavity 11 and a fin evaporation member 12; the phase change cavity 11 has a length direction and a width direction, the length direction is perpendicular to the width direction, the phase change cavity 11 is used to fill the phase change material, the phase change cavity 11 has a first surface 111 and a second surface 112, the first surface 111 is arranged parallel above the second surface 112, and the planar area of the first surface 111 is smaller than the planar area of the second surface 112, which helps to optimize the heat exchange area, promote the heat transfer of the phase change material, and thus improve the heat exchange efficiency; the fin evaporation member 12 is used to absorb external heat, and the fin evaporation member 12 is detachably arranged on the second surface 112, which is convenient for cleaning the second surface 112 and the maintenance and replacement of the fin evaporation member 12; the fin evaporation member 12 includes a flow channel 121 and a plurality of fins 122, the flow channel 121 is fixedly arranged on the plurality of fins 122 and is attached to the second surface 112; wherein, a rib plate 113 is embedded in the phase change cavity, and the rib plate 113 is used to separate the phase change material, which while ensuring the structural strength of the phase change cavity 11, reduces the usage amount of the rib plate 113, increases the filling content of the phase change material, and thus greatly improves the heat exchange efficiency of the phase change evaporation device 10.
[0032] Please refer to Figure 4 and Figure 5 , in some embodiments, the rib plate 113 is arranged in a wavy, zigzag, V-shaped, and W-shaped structure, that is, the cross-sectional shape of the rib plate 113 along the width direction is arranged in a wavy, zigzag, V-shaped, and W-shaped structure, which can improve the strength and stability of the rib plate 113, effectively support the first surface 111 and the second surface 112, effectively cut the phase change material and prevent damage to the cavity when the phase change material expands. Further, on the premise of not occupying too much internal space of the phase change cavity 11, sufficient supporting force is provided, thereby reducing the usage amount of the rib plate 113, increasing the filling amount of the phase change material, and improving the heat exchange effect.
[0033] Please refer to Figure 4 and Figure 5 , in some embodiments, the rib plate 113 is arranged along the width direction of the phase change cavity 11, and the rib plate 113 is located in the 1 / 2 - 2 / 3 region of the phase change cavity 11 along the length direction, that is, the rib plate 113 is arranged in the middle region of the phase change cavity 11, which effectively disperses and alleviates the expansion pressure of the phase change material, and at the same time reduces the occupation of the filling space of the phase change material by the rib plate 113, enabling more of the phase change material to be utilized, and further improving the heat exchange efficiency of the phase change evaporation device 10.
[0034] Please refer to Figure 5, in some embodiments, the rib 113 is provided with a plurality of upper support points 1131 and a plurality of lower support points 1132. A plurality of the upper support points 1131 all protrude relative to the first surface 111, and a plurality of the lower support points 1132 all abut against the second surface 112, thereby ensuring the stability of the rib 113 within the phase change cavity 11, avoiding deformation and displacement of the rib 113 due to uneven stress during the phase change process, effectively guaranteeing the cutting of the phase change material, and further increasing the reliability and durability of the phase change evaporation device 10.
[0035] Please refer to Figure 1 , in some embodiments, a plurality of filling holes 114 are provided on the side wall of the phase change cavity 11. A plurality of the filling holes 114 are all used for filling the phase change material into the phase change cavity 11, thereby ensuring the efficient filling of the phase change material. The filling amount of the phase change material is set to 70% to 80% of the volume of the phase change cavity 11, thereby avoiding excessive ribs 113 occupying the internal space, while ensuring sufficient phase change material for heat exchange, reducing the possibility of the phase change material bulging, guaranteeing the structural safety of the phase change cavity 11, and further increasing the reliability and durability of the phase change evaporation device 10.
[0036] Please refer to Figure 2 and Figure 3 , in some embodiments, a plurality of the fins 122 are all vertically spaced from the second surface 112, thereby optimizing the contact area between the fins 122 and the phase change material and the flow path of the air flow, ensuring the uniform distribution and efficient conduction of heat, and further improving the heat exchange efficiency.
[0037] Please refer to Figure 3 , in some embodiments, a plurality of the fins 122 are all provided with fixing notches 1221. The fixing notches 1221 are used for fixing the flow channels 121, thereby ensuring that the heat can be efficiently transferred into the flow channels 121 and absorbed by the refrigerant, and effectively ensuring the stable fixation of the flow channels 121, thereby ensuring the stability and effective operation of the fin evaporation member 12.
[0038] Please refer to Figure 3 , in some embodiments, the flow channels 121 are arranged in a serpentine shape in a plurality of the fixing notches 1221, thereby improving the flow path of the refrigerant in the flow channels 121, ensuring that the refrigerant uniformly passes through a plurality of the fins 122, and improving the overall heat exchange performance.
[0039] Please refer to Figure 2, in some embodiments, the flow channel 121 is provided with a liquid inlet section 1211 and a liquid outlet section 1212, and both the liquid inlet section 1211 and the liquid outlet section 1212 are arranged in parallel and attached to the second surface 112, thus ensuring the smooth flow of the refrigerant and improving the heat exchange efficiency of a plurality of fins 122.
[0040] In some embodiments, the length dimension of the phase change cavity 11 is set to 1150 mm to 1200 mm, the width dimension is set to 400 mm to 500 mm, the height dimension is set to 9 mm to 10 mm, and the diameter of the flow channel 121 is set to 11 mm to 12 mm. While ensuring the heat exchange efficiency of the phase change cavity 11, the volume of the phase change cavity 11 is reduced as much as possible, thus greatly reducing the manufacturing cost of the phase change evaporation device 10.
[0041] In some embodiments, the phase change evaporation device 10 can be used as a heat exchanger device for adjusting the ambient temperature. This device is filled with a phase change material for storing and releasing thermal energy and an evaporator for circulating Freon.
[0042] In some embodiments, the dimension of the fin evaporation member 12 in the length direction is set to 80% to 98% of the dimension of the second surface 112 in the length direction. Thus, heat can be effectively transferred from the fin evaporation member 12 to the phase change cavity 11, effectively enhancing the heat exchange effect of the phase change evaporation device 10 and ensuring the uniform distribution and efficient conduction of heat.
[0043] Please refer to Figure 3 , in some embodiments, the flow channel 121 is arranged in an S shape or an arc shape in the fixed notch 1221. Thus, the flow path of the refrigerant in the flow channel 121 can be further improved, ensuring that the refrigerant uniformly passes through a plurality of fins 122 and improving the heat exchange performance of the phase change evaporation device 10.
[0044] Please refer to Figure 5 , in some embodiments, the cross-section of the phase change cavity 11 in the width direction is set as an isosceles trapezoid. Thus, the structural strength of the phase change cavity 11 can be enhanced, reducing the possibility of damage to the phase change cavity 11 caused by the swelling of the phase change material, ensuring the structural safety of the phase change cavity 11, and further increasing the reliability and durability of the phase change evaporation device 10.
[0045] In the second embodiment of the present application, a heat dissipation device is provided, which includes the phase change evaporation device as described above, thus significantly increasing the filling amount of the phase change material, optimizing the heat exchange effect, and greatly reducing the energy consumption of heat dissipation devices such as air conditioners.
[0046] In summary, the present application provides a phase change evaporation device and a heat dissipation device. The phase change evaporation device includes a phase change cavity having a length direction and a width direction, the phase change cavity being configured to be filled with a phase change material. The phase change cavity has a first surface and a second surface, the first surface being disposed parallel above the second surface, and the planar area of the first surface being smaller than the planar area of the second surface; a fin evaporation member detachably disposed on the second surface; the fin evaporation member includes a flow channel and a plurality of fins, the flow channel being fixedly disposed on the plurality of fins and being in contact with the second surface; wherein, a rib plate is embedded in the phase change cavity, and the rib plate is used to partition the phase change material. Furthermore, by making the planar area of the first surface smaller than the planar area of the second surface, the heat exchange area of the phase change cavity is increased, and a detachable fin evaporation member is supported. The rib plate embedded in the phase change cavity not only supports and stabilizes the cavity structure, but also cuts the phase change material into several small pieces, effectively preventing damage to the cavity caused by the expansion of the phase change material. At the same time, the filling amount of the material is increased, and the heat exchange effect of the phase change evaporation device is improved. Furthermore, the problem that the fins in the prior art phase change evaporation device occupy the internal space and reduce the filling amount of the phase change material is solved, and the overall heat exchange efficiency of the phase change evaporation device and the long-term reliability of the device are improved.
[0047] It should be understood that the application of the present application is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present application.
Claims
1. A phase change evaporation device for heat exchange in air conditioning, characterized in that: include: A phase change cavity, wherein the phase change cavity has a length direction and a width direction, the phase change cavity is used to fill a phase change material, the phase change cavity has a first surface and a second surface, the first surface is arranged parallel to and above the second surface, and a plane area of the first surface is smaller than a plane area of the second surface; A fin evaporator, wherein the fin evaporator is detachably arranged on the second surface; the fin evaporator comprises a flow channel and a plurality of fins, wherein the flow channel is fixedly arranged on the plurality of fins and is arranged in contact with the second surface; Wherein, ribs are embedded in the phase change cavity, and the ribs are used to separate the phase change material.
2. The phase change evaporation device according to claim 1, characterized in that: The ribs are arranged in wave, zigzag, V-shaped and W-shaped structures.
3. The phase change evaporation device according to claim 2, characterized in that: The ribs are arranged along the width direction of the phase change cavity, and the ribs are located in the 1 / 2 to 2 / 3 region of the phase change cavity along the length direction.
4. The phase change evaporation device according to claim 2, characterized in that: The rib plate is provided with a plurality of upper supporting points and a plurality of lower supporting points, wherein the plurality of upper supporting points are all protruded relative to the first surface, and the plurality of lower supporting points are all in contact with the second surface.
5. The phase change evaporation device according to claim 1, characterized in that: The side wall of the phase change cavity is provided with a plurality of filling holes, and the plurality of filling holes are used to fill the phase change cavity with phase change material, and the filling amount of the phase change material is set to 70% to 80% of the volume of the phase change cavity.
6. The phase change evaporation device according to claim 1, characterized in that: The plurality of fins are vertically spaced apart from the second surface.
7. The phase change evaporation device according to claim 6, characterized in that: A plurality of the fins are provided with fixing notches, and the fixing notches are used to fix the flow channel.
8. The phase change evaporation device according to claim 7, characterized in that: The flow channel is fixedly arranged in a plurality of the fixing notches in a serpentine shape.
9. The phase change evaporation device according to claim 1, characterized in that: The flow channel is provided with a liquid inlet section and a liquid outlet section, and the liquid inlet section and the liquid outlet section are both arranged in parallel and in close contact with the second surface.
10. A heat dissipation device, characterized in that: The heat dissipation device comprises the phase change evaporation device according to any one of claims 1 to 9.