EP3444551A1 - Heat conducting plate and method for producing plate body thereof - Google Patents
Heat conducting plate and method for producing plate body thereof Download PDFInfo
- Publication number
- EP3444551A1 EP3444551A1 EP16898354.2A EP16898354A EP3444551A1 EP 3444551 A1 EP3444551 A1 EP 3444551A1 EP 16898354 A EP16898354 A EP 16898354A EP 3444551 A1 EP3444551 A1 EP 3444551A1
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- EP
- European Patent Office
- Prior art keywords
- capillary tube
- plate body
- tube cavity
- heat exchange
- heat conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
- F25D31/001—Plate freezers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0283—Means for filling or sealing heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D2015/0225—Microheat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
- F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
Definitions
- the present invention relates to a heat conducting plate and a production method for a plate body thereof, which belongs to the technical field of heat exchange.
- Heat conducting plates are widely applied in heat exchange devices and the heat conduction efficiency and temperature equalization effect thereof are key factors to decide the performance thereof.
- the rapid freezing plate/rapid unfreezing plate is a heat conducting plate which can be used to reduce the waiting time of unfreezing and improve the freezing efficiency.
- the existing rapid freezing plate/rapid unfreezing plate is usually formed by the combination of an upper aluminum alloy plate, a lower aluminum alloy plate and a heat tube formed separately, with poor temperature equalization effect and low heat conduction efficiency.
- the upper aluminum alloy plate and the lower aluminum alloy plate are formed separately and then assembled with the heat tube, resulting high production costs and complicated processes.
- an object of the present invention is to provide a heat conducting plate and a production method for a plate body thereof, which can not only improve the temperature equalization effect and heat conduction efficiency but also has a simple process and lower production costs.
- an embodiment of the present invention provides a heat conducting plate.
- the heat conducting plate comprises an integrally formed plate body, the plate body comprising a front surface and a plurality of capillary tube cavities formed inside the plate body and provided for a heat exchange medium to flow, each capillary tube cavity extending along a first direction parallel to the front surface and provided with a micro-tooth structure on the inner wall thereof, and the heat exchange medium being capable of flowing along the first direction in the capillary tube cavity.
- some of the capillary tube cavities are distributed evenly side by side along a second direction perpendicular to the first direction and parallel to the front surface.
- the micro-tooth structure comprises micro combs distributed continuously and a comb groove between two adjacent micro combs, and the comb groove extends along the first direction so that the heat exchange medium is capable of flowing in the comb groove to form capillarity.
- the micro groove comprises valleys away from the center of the capillary tube cavity and peaks close to the center of the capillary tube cavity, the valleys and/or the peaks being of an arc shape.
- the micro-tooth structure is at least provided on the inner wall of the capillary tube cavity away from the front surface.
- the capillary tube cavity is provided as a closed space filled with the heat exchange medium, the heat exchange medium flowing circularly in the capillary tube cavity.
- the capillary tube cavity comprises a first opening and a second opening provided oppositely along the extension direction thereof and the heat exchange medium is capable of flowing into and out of the capillary tube cavity through the first opening and the second opening.
- an embodiment of the present invention also provides a production method for a plate body of a heat conducting plate mentioned above.
- the method comprises: forming a basic plate body through an extrusion process, the basic plate body comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end and a second end of the basic plate body respectively; crimping the first end to seal the first opening; communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; and crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body.
- each capillary tube cavity is provided with a micro-tooth structure.
- the step of communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity comprises: communicating the second opening with a filling tube by welding the filling tube to the second end; and communicating the filling tube with a vacuum pump and vacuumizing the capillary tube cavity.
- the step of injecting the heat exchange medium into the capillary tube cavity comprises: injecting the heat exchange medium into the capillary tube cavity through the filling tube.
- the step of crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body comprises: crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same; and welding the cut-off section to obtain at least one basic plate body.
- the present invention has the following beneficial effects: the integrally formed plate body and the capillary tube cavities provided in the plate body greatly improve the temperature equalization effect and heat exchange efficiency of the heat conducting plate; the micro-tooth structure enables the heat exchange medium to form capillarity along the micro-tooth structure, further enhancing the heat exchange efficiency; and the integrally formed plate body has a simple production process and lower production costs.
- orientation or location relationships indicated by terms “center”, “longitudinal”, “lateral”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” are orientation or location relationships shown in the figure, which is merely for the sake of describing the present invention and simplifying the description rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated with a specific orientation and thus shall not be understood as a limitation to the present invention.
- terms “first” and “second” are merely used for description and shall not be understood as indicating or implying relative importance.
- direction X is defined as a first direction
- direction Y perpendicular to direction X is defined as a second direction
- direction perpendicular to direction X and direction Y is the vertical direction.
- an embodiment of the present invention provides a heat conducting plate, in particular a heat conducting plate for quick freezing or quick unfreezing.
- the heat conducting plate includes a plate body 100.
- the plate body 100 is integrally formed by an aluminum alloy material, including a front surface 11 and a rear surface 12 provided oppositely in the vertical direction.
- the front surface 11 is parallel to the first direction and the second direction.
- the front surface 11 is located on the side of the plate body 100 which has a larger surface area.
- the plate body 100 has a plurality of capillary tube cavities 20 formed therein. Each capillary tube cavity 20 is provided for a heat exchange medium to flow.
- the heat exchange medium may perform direct heat exchange with the ambient environment of the plate body 100.
- the heat exchange medium may be provided as alcohol or R134a (full name 1, 1, 1, 2-tetrafluoroethane).
- each capillary tube cavity 20 is provided as elongate and extends along the first direction.
- the heat exchange medium may flow in the capillary tube cavity 20 along the first direction to accelerate the heat exchange rate.
- the flowing may be incurred by the phase change of the heat exchange medium or incurred by an external pressure and so on, which all belong to the scope of flowing.
- the plurality of capillary tube cavities 20 is distributed evenly side by side inside the plate body along the second direction so that on one hand the heat exchange rate can be improved to accelerate the quick freezing and unfreezing speed and on the other hand can also improve the temperature equalization effect.
- Any two capillary tube cavities 20 are separated from each other without communication.
- each capillary tube cavity 20 is provided with a micro-tooth structure 21.
- the micro-tooth structure 21 includes micro combs 211 distributed continuously and a comb groove 212 located between two adjacent micro combs 211.
- the micro-tooth structure 21 is provided so that the comb groove 212 extends along the first direction so that the heat exchange medium may flow to form capillarity along the comb groove 212 to further accelerate the heat exchange rate and improve the temperature equalization effect.
- the micro-tooth structure 21 is provided of a wave shape.
- the comb groove 212 includes valleys 2120 away from the center of the capillary tube cavity 20.
- the valleys 2120 are provided of an arc shape so that the flowing rate of the heat exchange medium at the valleys 2120 can be avoided from lowering due to excessive resistance and the flowing of the heat exchange medium can be smoother to improve the heat exchange efficiency.
- the micro combs 211 include peaks 2110 close to the center of the capillary tube cavity 20.
- the peaks 2110 are also provided of an arc shape to improve the heat exchange efficiency.
- the valleys 2120 and peaks 2110 in arc shapes may also reduce the formation difficulty of the plate body 100 and ensure the product quality.
- the capillary tube cavity 20 is provided of a rectangular shape, including a top wall and a bottom wall provided oppositely in the vertical direction and two side walls provided oppositely along the second direction.
- the top wall is located on the side close to the front surface 11.
- the bottom wall is located on the side close to the rear surface 12.
- the micro-tooth structure 21 is at least provided on the bottom wall. In the embodiment shown in the figure, the micro-tooth structure 21 is provided on the bottom wall and the top wall. Of course, except from being provided on the top wall and the bottom wall, the micro-tooth structure 21 may also be provided on the two side walls.
- the included angle between two adjacent micro combs 211 is approximately 20 degrees.
- the capillary tube cavity 20 is provided as an enclosed space.
- the enclosed space is filled with the heat exchange medium, that is, the capillary tube cavity 20 does not communicate with the external space of the plate body 100.
- the heat exchange medium can only flow circularly in the capillary tube cavity 20.
- the plate body 100 further includes bonding portions 13 provided at the opposite sides thereof along the first direction. Any capillary tube cavity 20 extends to the inner side of the two bonding portions along the first direction and is enclosed by the bonding portions 13. As such, the temperature equalization effect of the plate body 100 may be enhanced.
- the capillary tube cavity 20 may also be provided as an open space.
- the capillary tube cavity 20 comprises a first opening and a second opening.
- the heat exchange medium is capable of flowing into and out of the capillary tube cavity 20 through the first opening and the second opening. That is, the capillary tube cavity 20 may communicate with other devices accommodating the heat exchange medium through the first opening and the second opening.
- the first opening and the second opening are provided oppositely along the extension direction of the capillary direction 20 to increase the flowing rate of the heat exchange medium.
- an embodiment of the present invention also provides a production method for a plate body 100 of a heat conducting plate mentioned above.
- the method comprises the steps of: forming a basic plate body through an extrusion process, the basic plate body comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end and a second end of the basic plate body respectively; crimping the first end to seal the first opening; communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; and crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body.
- the method comprises the steps of: forming a basic plate body 1 through an extrusion process in a mold, the basic plate body 1 being provided of an aluminum alloy material and comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end 101 and a second end 102 of the basic plate body 1 respectively; crimping the first end 101 to seal the first opening; for example, the first end 101 may be rolled and pressed to form a bonding portion 13, during which process, the first openings at the first end 101 are all closed so that the capillary tube cavity merely communicates with the external space of the basic plate body 1 through the second opening; communicating the second opening with a vacuum pump through a filling tube 200 and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; the heat exchange medium may be provided as alcohol or R134a (full name 1, 1, 1, 2-tetrafluor
- the extension direction of the capillary tube cavity is defined as the first direction.
- the first end 101 and the second end 102 are provided oppositely along the first direction.
- the capillary tube cavity may communicate with the external space of the basic plate body 1 through the first opening and the second opening.
- capillary tube cavities are distributed evenly side by side along a second direction perpendicular to the first direction.
- the inner wall of each capillary tube cavity is provided with a micro-tooth structure.
- the step of communicating the second opening with a vacuum pump through a filling tube 200 and vacuumizing the capillary tube cavity comprises: communicating the second opening with a filling tube 200 by welding the filling tube 200 to the second end 102; and connecting the filling tube 200 to a vacuum pump and vacuumizing the capillary tube cavity.
- the step of injecting the heat exchange medium into the capillary tube cavity comprises: injecting the heat exchange medium into the capillary tube cavity through the filling tube 200.
- the filling tube 200 may be used as a channel to realize the communication with the capillary tube cavity, reducing the process complexity.
- the step of crimping and banding the basic plate body 1 along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body 100 comprises: crimping and banding the basic plate body 1 along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same; and welding the cut-off section to obtain at least one basic plate body 100.
- the simultaneous production of a plurality of plate bodies 100 can be realized, which not only ensures the product quality but also greatly improves the production efficiency.
- the present invention has the following beneficial effects: the integrally formed plate body and the capillary tube cavities provided in the plate body greatly improve the temperature equalization effect and heat exchange efficiency of the heat conducting plate; the micro-tooth structure enables the heat exchange medium to form capillarity along the micro-tooth structure, further enhancing the heat exchange efficiency; and the integrally formed plate body has a simple production process and lower production costs.
Abstract
Description
- The present invention relates to a heat conducting plate and a production method for a plate body thereof, which belongs to the technical field of heat exchange.
- Heat conducting plates are widely applied in heat exchange devices and the heat conduction efficiency and temperature equalization effect thereof are key factors to decide the performance thereof. For example, in the technical field of rapid freezing and/or rapid unfreezing of food, the rapid freezing plate/rapid unfreezing plate is a heat conducting plate which can be used to reduce the waiting time of unfreezing and improve the freezing efficiency.
- At present, as disclosed in patent No.
CN201520301251. 3 - In order to solve at least one of the above technical problems, an object of the present invention is to provide a heat conducting plate and a production method for a plate body thereof, which can not only improve the temperature equalization effect and heat conduction efficiency but also has a simple process and lower production costs.
- In order to realize one of the above invention objects, an embodiment of the present invention provides a heat conducting plate. The heat conducting plate comprises an integrally formed plate body, the plate body comprising a front surface and a plurality of capillary tube cavities formed inside the plate body and provided for a heat exchange medium to flow, each capillary tube cavity extending along a first direction parallel to the front surface and provided with a micro-tooth structure on the inner wall thereof, and the heat exchange medium being capable of flowing along the first direction in the capillary tube cavity.
- As an improvement to an embodiment of the present invention, some of the capillary tube cavities are distributed evenly side by side along a second direction perpendicular to the first direction and parallel to the front surface.
- As a further improvement to an embodiment of the present invention, the micro-tooth structure comprises micro combs distributed continuously and a comb groove between two adjacent micro combs, and the comb groove extends along the first direction so that the heat exchange medium is capable of flowing in the comb groove to form capillarity.
- As a further improvement to an embodiment of the present invention, the micro groove comprises valleys away from the center of the capillary tube cavity and peaks close to the center of the capillary tube cavity, the valleys and/or the peaks being of an arc shape.
- As a further improvement to an embodiment of the present invention, the micro-tooth structure is at least provided on the inner wall of the capillary tube cavity away from the front surface.
- As a further improvement to an embodiment of the present invention, the capillary tube cavity is provided as a closed space filled with the heat exchange medium, the heat exchange medium flowing circularly in the capillary tube cavity.
- As a further improvement to an embodiment of the present invention, the capillary tube cavity comprises a first opening and a second opening provided oppositely along the extension direction thereof and the heat exchange medium is capable of flowing into and out of the capillary tube cavity through the first opening and the second opening.
- In order to realize one of the above invention objects, an embodiment of the present invention also provides a production method for a plate body of a heat conducting plate mentioned above. The method comprises: forming a basic plate body through an extrusion process, the basic plate body comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end and a second end of the basic plate body respectively; crimping the first end to seal the first opening; communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; and crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body.
- As an improvement to an embodiment of the present invention, the inner wall of each capillary tube cavity is provided with a micro-tooth structure.
- As a further improvement to an embodiment of the present invention, the step of communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity comprises: communicating the second opening with a filling tube by welding the filling tube to the second end; and communicating the filling tube with a vacuum pump and vacuumizing the capillary tube cavity.
- As a further improvement to an embodiment of the present invention, the step of injecting the heat exchange medium into the capillary tube cavity comprises: injecting the heat exchange medium into the capillary tube cavity through the filling tube.
- As a further improvement to an embodiment of the present invention, the step of crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body comprises: crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same; and welding the cut-off section to obtain at least one basic plate body.
- Compared to the prior art, the present invention has the following beneficial effects: the integrally formed plate body and the capillary tube cavities provided in the plate body greatly improve the temperature equalization effect and heat exchange efficiency of the heat conducting plate; the micro-tooth structure enables the heat exchange medium to form capillarity along the micro-tooth structure, further enhancing the heat exchange efficiency; and the integrally formed plate body has a simple production process and lower production costs.
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Fig. 1 is a structure diagram of a plate body of a heat conducting plate according to an embodiment of the present invention; -
Fig. 2 is a longitudinal section view along the line A-A inFig. 1 ; -
Fig. 3 is a partial enlargement diagram of region B inFig. 2 ; -
Fig. 4 is a flowchart of a production method for a plate body of a heat conducting plate according to an embodiment of the present invention; and -
Fig. 5 is a production state change view of a plate body of a heat conducting plate according to an embodiment of the present invention. - Hereinafter, the present invention will be described in detail in combination with the particular embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and the structure, method or function transforms made by those skilled in the art according to these embodiments are all contained in the protection scope of the present invention.
- It should be understood that unless explicitly defined and stated otherwise, in the description of the present invention, the orientation or location relationships indicated by terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" are orientation or location relationships shown in the figure, which is merely for the sake of describing the present invention and simplifying the description rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated with a specific orientation and thus shall not be understood as a limitation to the present invention. In addition, terms "first" and "second" are merely used for description and shall not be understood as indicating or implying relative importance.
- For the sake of clear and simple description, referring to
Fig. 1 , direction X is defined as a first direction, direction Y perpendicular to direction X is defined as a second direction, and the direction perpendicular to direction X and direction Y is the vertical direction. - Referring to
Figs. 1 to 3 , an embodiment of the present invention provides a heat conducting plate, in particular a heat conducting plate for quick freezing or quick unfreezing. The heat conducting plate includes aplate body 100. - The
plate body 100 is integrally formed by an aluminum alloy material, including afront surface 11 and arear surface 12 provided oppositely in the vertical direction. Thefront surface 11 is parallel to the first direction and the second direction. Thefront surface 11 is located on the side of theplate body 100 which has a larger surface area. - The
plate body 100 has a plurality ofcapillary tube cavities 20 formed therein. Eachcapillary tube cavity 20 is provided for a heat exchange medium to flow. The heat exchange medium may perform direct heat exchange with the ambient environment of theplate body 100. Preferably, the heat exchange medium may be provided as alcohol or R134a (full name - In an embodiment of the present invention, each
capillary tube cavity 20 is provided as elongate and extends along the first direction. When the heat conducting plate is used for quickly freezing and unfreezing food, the heat exchange medium may flow in thecapillary tube cavity 20 along the first direction to accelerate the heat exchange rate. The flowing may be incurred by the phase change of the heat exchange medium or incurred by an external pressure and so on, which all belong to the scope of flowing. - In addition, the plurality of
capillary tube cavities 20 is distributed evenly side by side inside the plate body along the second direction so that on one hand the heat exchange rate can be improved to accelerate the quick freezing and unfreezing speed and on the other hand can also improve the temperature equalization effect. - Any two
capillary tube cavities 20 are separated from each other without communication. - The inner wall of each
capillary tube cavity 20 is provided with amicro-tooth structure 21. Themicro-tooth structure 21 includesmicro combs 211 distributed continuously and acomb groove 212 located between two adjacentmicro combs 211. Themicro-tooth structure 21 is provided so that thecomb groove 212 extends along the first direction so that the heat exchange medium may flow to form capillarity along thecomb groove 212 to further accelerate the heat exchange rate and improve the temperature equalization effect. - In an embodiment of the present invention, on the longitudinal cross section parallel to the second direction, the
micro-tooth structure 21 is provided of a wave shape. Thecomb groove 212 includesvalleys 2120 away from the center of thecapillary tube cavity 20. Thevalleys 2120 are provided of an arc shape so that the flowing rate of the heat exchange medium at thevalleys 2120 can be avoided from lowering due to excessive resistance and the flowing of the heat exchange medium can be smoother to improve the heat exchange efficiency. Likewise, themicro combs 211 includepeaks 2110 close to the center of thecapillary tube cavity 20. Thepeaks 2110 are also provided of an arc shape to improve the heat exchange efficiency. At the same time, thevalleys 2120 andpeaks 2110 in arc shapes may also reduce the formation difficulty of theplate body 100 and ensure the product quality. - In addition, on the longitudinal cross section parallel to the second direction, the
capillary tube cavity 20 is provided of a rectangular shape, including a top wall and a bottom wall provided oppositely in the vertical direction and two side walls provided oppositely along the second direction. The top wall is located on the side close to thefront surface 11. The bottom wall is located on the side close to therear surface 12. Themicro-tooth structure 21 is at least provided on the bottom wall. In the embodiment shown in the figure, themicro-tooth structure 21 is provided on the bottom wall and the top wall. Of course, except from being provided on the top wall and the bottom wall, themicro-tooth structure 21 may also be provided on the two side walls. - In addition, the included angle between two adjacent micro combs 211 is approximately 20 degrees.
- In the embodiment shown in the figure, the
capillary tube cavity 20 is provided as an enclosed space. The enclosed space is filled with the heat exchange medium, that is, thecapillary tube cavity 20 does not communicate with the external space of theplate body 100. The heat exchange medium can only flow circularly in thecapillary tube cavity 20. In particular, theplate body 100 further includesbonding portions 13 provided at the opposite sides thereof along the first direction. Anycapillary tube cavity 20 extends to the inner side of the two bonding portions along the first direction and is enclosed by thebonding portions 13. As such, the temperature equalization effect of theplate body 100 may be enhanced. - In other embodiments, the
capillary tube cavity 20 may also be provided as an open space. In particular, thecapillary tube cavity 20 comprises a first opening and a second opening. The heat exchange medium is capable of flowing into and out of thecapillary tube cavity 20 through the first opening and the second opening. That is, thecapillary tube cavity 20 may communicate with other devices accommodating the heat exchange medium through the first opening and the second opening. The first opening and the second opening are provided oppositely along the extension direction of thecapillary direction 20 to increase the flowing rate of the heat exchange medium. - In addition, referring to
Figs. 4 and5 , an embodiment of the present invention also provides a production method for aplate body 100 of a heat conducting plate mentioned above. The method comprises the steps of: forming a basic plate body through an extrusion process, the basic plate body comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end and a second end of the basic plate body respectively; crimping the first end to seal the first opening; communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; and crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body. - In particular, taking the embodiment shown in
Fig. 4 as an example, the method comprises the steps of: forming a basic plate body 1 through an extrusion process in a mold, the basic plate body 1 being provided of an aluminum alloy material and comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end 101 and a second end 102 of the basic plate body 1 respectively; crimping the first end 101 to seal the first opening; for example, the first end 101 may be rolled and pressed to form a bonding portion 13, during which process, the first openings at the first end 101 are all closed so that the capillary tube cavity merely communicates with the external space of the basic plate body 1 through the second opening; communicating the second opening with a vacuum pump through a filling tube 200 and vacuumizing the capillary tube cavity; injecting the heat exchange medium into the capillary tube cavity; the heat exchange medium may be provided as alcohol or R134a (full name 1, 1, 1, 2-tetrafluoroethane); crimping and banding the basic plate body 1 along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same in particular with a rolling and pressing manner to obtain at least one plate body 100. - The extension direction of the capillary tube cavity is defined as the first direction. The
first end 101 and thesecond end 102 are provided oppositely along the first direction. The capillary tube cavity may communicate with the external space of thebasic plate body 1 through the first opening and the second opening. - Some of the capillary tube cavities are distributed evenly side by side along a second direction perpendicular to the first direction. The inner wall of each capillary tube cavity is provided with a micro-tooth structure.
- In an embodiment of the present invention, the step of communicating the second opening with a vacuum pump through a filling
tube 200 and vacuumizing the capillary tube cavity comprises: communicating the second opening with a fillingtube 200 by welding the fillingtube 200 to thesecond end 102; and connecting the fillingtube 200 to a vacuum pump and vacuumizing the capillary tube cavity. - The step of injecting the heat exchange medium into the capillary tube cavity comprises: injecting the heat exchange medium into the capillary tube cavity through the filling
tube 200. - As such, during the process of vacuumizing and injecting the heat exchange medium, the filling
tube 200 may be used as a channel to realize the communication with the capillary tube cavity, reducing the process complexity. - In addition, in an embodiment of the present invention, the step of crimping and banding the
basic plate body 1 along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least oneplate body 100 comprises: crimping and banding thebasic plate body 1 along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same; and welding the cut-off section to obtain at least onebasic plate body 100. - As such, the simultaneous production of a plurality of
plate bodies 100 can be realized, which not only ensures the product quality but also greatly improves the production efficiency. - Compared to the prior art, the present invention has the following beneficial effects: the integrally formed plate body and the capillary tube cavities provided in the plate body greatly improve the temperature equalization effect and heat exchange efficiency of the heat conducting plate; the micro-tooth structure enables the heat exchange medium to form capillarity along the micro-tooth structure, further enhancing the heat exchange efficiency; and the integrally formed plate body has a simple production process and lower production costs.
- The detailed description listed above is merely a particular description of feasible embodiments of the present invention which is not used to limit the protection scope of the present invention. All equivalent embodiments or changes made without departing from the technical spirit of the present invention shall be included within the protection scope of the present invention.
Claims (12)
- A heat conducting plate, comprising an integrally formed plate body, the plate body comprising a front surface and a plurality of capillary tube cavities formed inside the plate body and provided for a heat exchange medium to flow, each capillary tube cavity extending along a first direction parallel to the front surface and provided with a micro-tooth structure on the inner wall thereof, and the heat exchange medium being capable of flowing along the first direction in the capillary tube cavity.
- The heat conducting plate according to claim 1, wherein some of the capillary tube cavities are distributed evenly side by side along a second direction perpendicular to the first direction and parallel to the front surface.
- The heat conducting plate according to claim 1, wherein the micro-tooth structure comprises micro combs distributed continuously and a comb groove between two adjacent micro combs, and the comb groove extends along the first direction so that the heat exchange medium is capable of flowing in the comb groove to form capillarity.
- The heat conducting plate according to claim 3, wherein the micro groove comprises valleys away from the center of the capillary tube cavity and peaks close to the center of the capillary tube cavity, the valleys and/or the peaks being of an arc shape.
- The heat conducting plate according to claim 1, wherein the micro-tooth structure is at least provided on the inner wall of the capillary tube cavity away from the front surface.
- The heat conducting plate according to claim 1, wherein the capillary tube cavity is provided as a closed space filled with the heat exchange medium, the heat exchange medium flowing circularly in the capillary tube cavity.
- The heat conducting plate according to claim 1, wherein the capillary tube cavity comprises a first opening and a second opening provided oppositely along the extension direction thereof and the heat exchange medium is capable of flowing into and out of the capillary tube cavity through the first opening and the second opening.
- A production method for a plate body of a heat conducting plate according to any one of claims 1 to 6, comprising:forming a basic plate body through an extrusion process, the basic plate body comprising a plurality of capillary tube cavities formed therein, each capillary tube cavity comprising a first opening and a second opening provided at a first end and a second end of the basic plate body respectively;crimping the first end to seal the first opening;communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity;injecting the heat exchange medium into the capillary tube cavity; andcrimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body.
- The production method for a plate body of a heat conducting plate according to claim 8, wherein the inner wall of each capillary tube cavity is provided with a micro-tooth structure.
- The production method for a plate body of a heat conducting plate according to claim 9, wherein the step of communicating the second opening with a vacuum pump through a filling tube and vacuumizing the capillary tube cavity comprises:communicating the second opening with a filling tube by welding the filling tube to the second end; andcommunicating the filling tube with a vacuum pump and vacuumizing the capillary tube cavity.
- The production method for a plate body of a heat conducting plate according to claim 8, wherein the step of injecting the heat exchange medium into the capillary tube cavity comprises:
injecting the heat exchange medium into the capillary tube cavity through the filling tube. - The production method for a plate body of a heat conducting plate according to claim 8, wherein the step of crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same to obtain at least one plate body comprises:crimping and banding the basic plate body along the extension direction of the capillary tube cavity according to a fixed length and cutting off the same; andwelding the cut-off section to obtain at least one basic plate body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610230643.4A CN105865242A (en) | 2016-04-14 | 2016-04-14 | Heat conducting plate and production method for plate body of heat conducting plate |
PCT/CN2016/086179 WO2017177539A1 (en) | 2016-04-14 | 2016-06-17 | Heat conducting plate and method for producing plate body thereof |
Publications (2)
Publication Number | Publication Date |
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EP3444551A1 true EP3444551A1 (en) | 2019-02-20 |
EP3444551A4 EP3444551A4 (en) | 2019-11-27 |
Family
ID=56637151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16898354.2A Withdrawn EP3444551A4 (en) | 2016-04-14 | 2016-06-17 | Heat conducting plate and method for producing plate body thereof |
Country Status (4)
Country | Link |
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US (1) | US20180209747A1 (en) |
EP (1) | EP3444551A4 (en) |
CN (1) | CN105865242A (en) |
WO (1) | WO2017177539A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106403494A (en) * | 2016-08-31 | 2017-02-15 | 深圳市爱康生物科技有限公司 | Heat conduction cushion tray |
CN107036360A (en) * | 2017-03-07 | 2017-08-11 | 青岛海尔股份有限公司 | Refrigerator with quick-frozen plate |
CN107080144A (en) * | 2017-06-22 | 2017-08-22 | 合肥美菱股份有限公司 | A kind of Quick thawing plate |
CN109974485A (en) * | 2017-12-27 | 2019-07-05 | 杭州三花家电热管理系统有限公司 | Heat source box and heat-conducting plate for heat-conducting plate |
WO2019128859A1 (en) * | 2017-12-27 | 2019-07-04 | 杭州三花家电热管理系统有限公司 | Heat conducting plate and heat source box used in heat conducting plate |
CN109845948A (en) * | 2018-09-10 | 2019-06-07 | 缪彬彬 | A kind of defrosting plate |
CN112880454A (en) * | 2019-11-29 | 2021-06-01 | 上海微电子装备(集团)股份有限公司 | Heat exchange structure and semiconductor heat exchange device |
CN112728865B (en) * | 2020-12-24 | 2022-02-01 | 四方科技集团股份有限公司 | Flat freezing plate and refrigerating system with same |
CN115479426B (en) * | 2021-06-16 | 2024-01-05 | 青岛海尔电冰箱有限公司 | Refrigerator and food material processing device thereof |
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US5465782A (en) * | 1994-06-13 | 1995-11-14 | Industrial Technology Research Institute | High-efficiency isothermal heat pipe |
US5737923A (en) * | 1995-10-17 | 1998-04-14 | Marlow Industries, Inc. | Thermoelectric device with evaporating/condensing heat exchanger |
CN2530234Y (en) * | 2002-03-13 | 2003-01-08 | 柯朝阳 | Semi-contact high efficiency freezing board |
US20080185130A1 (en) * | 2007-02-07 | 2008-08-07 | Behr America | Heat exchanger with extruded cooling tubes |
BRPI0700912A (en) * | 2007-03-13 | 2008-10-28 | Whirlpool Sa | heat exchanger |
US8234881B2 (en) * | 2008-08-28 | 2012-08-07 | Johnson Controls Technology Company | Multichannel heat exchanger with dissimilar flow |
WO2010060342A1 (en) * | 2008-11-03 | 2010-06-03 | Zhao Yaohua | Heat pipe with micro-pore tubes array and making method thereof and heat exchanging system |
CN101738114B (en) * | 2008-11-25 | 2012-11-21 | 富准精密工业(深圳)有限公司 | Flat plate type heat pipe and manufacture method thereof |
CN201548107U (en) * | 2009-11-03 | 2010-08-11 | 赵耀华 | Novel flat plate heat pipe |
CN101762197A (en) * | 2010-01-15 | 2010-06-30 | 邹飞龙 | Novel plate type heat pipe |
DE102011109566A1 (en) * | 2011-08-03 | 2013-02-07 | Asia Vital Components Co., Ltd. | Vapor-chamber cooler has main body, which has cavity, in which multiple guide elements are provided and working fluid is filled, where guide elements form channel, and guide elements and channels form guide zone |
CN103234376A (en) * | 2013-05-15 | 2013-08-07 | 上海鹰峰电子科技有限公司 | High-performance composite-structure super heat-conductive flat heat pipe |
KR101600663B1 (en) * | 2013-07-23 | 2016-03-07 | 티티엠주식회사 | Heat Pipe Manufacturing Method |
CN203422006U (en) * | 2013-09-04 | 2014-02-05 | 徐州暖阁能源科技有限公司 | Aluminum groove soaking plate |
CN204555773U (en) * | 2015-04-24 | 2015-08-12 | 江劲松 | A kind of special-shaped slot road plate-type heat-pipe |
-
2016
- 2016-04-14 CN CN201610230643.4A patent/CN105865242A/en active Pending
- 2016-06-17 WO PCT/CN2016/086179 patent/WO2017177539A1/en active Application Filing
- 2016-06-17 US US15/744,824 patent/US20180209747A1/en not_active Abandoned
- 2016-06-17 EP EP16898354.2A patent/EP3444551A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
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EP3444551A4 (en) | 2019-11-27 |
WO2017177539A1 (en) | 2017-10-19 |
CN105865242A (en) | 2016-08-17 |
US20180209747A1 (en) | 2018-07-26 |
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