CN117308658A - Integrated phase change heat storage component and manufacturing method - Google Patents
Integrated phase change heat storage component and manufacturing method Download PDFInfo
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- CN117308658A CN117308658A CN202311389818.2A CN202311389818A CN117308658A CN 117308658 A CN117308658 A CN 117308658A CN 202311389818 A CN202311389818 A CN 202311389818A CN 117308658 A CN117308658 A CN 117308658A
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- 238000005338 heat storage Methods 0.000 title claims abstract description 204
- 230000008859 change Effects 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011257 shell material Substances 0.000 description 27
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention belongs to the technical field of thermal control, and particularly relates to an integrated phase-change heat storage component and a manufacturing method thereof, wherein the integrated phase-change heat storage component comprises a shell, a heat storage cavity which is integrally formed with the shell is arranged in the shell, the heat storage cavity is used for storing phase-change heat storage media, and a filling hole communicated with the heat storage cavity is formed in the side wall of the shell; the shielding heat conduction structure is integrally formed with the shell, covers the upper side and the lower side of the heat storage cavity and is used for installing and shielding circuit components; the grid heat storage structure is positioned in the heat storage cavity and is integrally formed with the heat storage cavity; and the sealing structure is arranged at the filling hole of the shell and is used for sealing the phase-change heat storage medium in the heat storage cavity. The invention does not need to additionally manufacture a phase change heat storage module, reduces the heat transfer resistance, is beneficial to improving the heat conduction performance and the equivalent heat conductivity, and has the characteristics of light weight, large heat storage density and reliable packaging.
Description
Technical Field
The invention belongs to the technical field of thermal control, and particularly relates to an integrated phase-change heat storage component and a manufacturing method thereof.
Background
Along with the development of miniaturization and integration of microwave products in recent years, more and more high-power-consumption components are applied to the products, when the components are used, the components generate heat, and when the heat consumption of the components is lower, sensible heat can be stored in a mode of storing heat by adopting the components and shell materials. However, when the heat consumption of the component is high and exceeds the heat capacity of the component and the shell, the heat dissipation requirement cannot be met by adopting the heat storage mode of the component and the shell material. For example, in a microwave assembly, if heat cannot be dissipated in time, normal operation of the microwave assembly is seriously affected.
Therefore, how to dissipate the heat of the high-power-consumption components in a short time, design a high-quality product suitable for market demands, and ensure that the microwave assembly can operate efficiently and reliably in the transient emission time is a problem to be solved by the technicians in the field.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an integrated phase-change heat storage assembly and a manufacturing method thereof, which are used for solving the technical problem of poor heat storage capacity of a phase-change heat storage module of a microwave assembly in the prior art.
To achieve the above object and other related objects, the present invention provides the following technical solutions:
an integrated phase change heat storage assembly comprising:
the shell is internally provided with a heat storage cavity which is integrally formed with the shell, the heat storage cavity is used for storing phase-change heat storage media, and the side wall of the shell is provided with a filling hole communicated with the heat storage cavity;
the shielding heat conduction structure is integrally formed with the shell, covers the upper side and the lower side of the heat storage cavity and is used for installing and shielding circuit components;
the grid heat storage structure is positioned in the heat storage cavity and is integrally formed with the heat storage cavity; and
and the sealing structure is arranged at the filling hole of the shell and is used for sealing the phase-change heat storage medium in the heat storage cavity.
Optionally, the grid heat storage structure comprises a main framework horizontally arranged in a grid net shape and a plurality of auxiliary frameworks vertically arranged on the main framework, and the auxiliary frameworks are arranged at equal heights.
Optionally, the auxiliary frameworks are arranged in a plurality of rows in an array mode, and a plurality of auxiliary frameworks are arranged in each row at intervals.
Optionally, each auxiliary skeleton comprises two skeleton parts which are connected in a cross manner, and the intersection of the two skeleton parts is connected to the main skeleton.
Optionally, the structure of the heat storage cavity is adapted to the structure of the shell, and the shell, the heat storage cavity, the shielding heat conduction structure and the grid heat storage structure are formed through an additive manufacturing process.
Optionally, the upper and lower both sides of casing all are provided with the apron, shielding heat conduction structure set up in between apron and the heat accumulation chamber, apron and shielding heat conduction structure form a plurality of shielding chamber jointly for electromagnetic shield and the isolation of circuit components and parts.
Optionally, the shielding heat conducting structure comprises shielding plates positioned on the upper side and the lower side of the heat storage cavity and a plurality of separation beams positioned on the shielding plates, the separation beams, the shielding plates and the cover plate form a plurality of shielding cavities, and the circuit components are arranged in the shielding cavities; the inside cavity that has of separating beam, just the cavity with heat-retaining chamber intercommunication.
Optionally, the sealing structure is a plug arranged at the filling hole, the head of the plug is provided with external threads, the filling hole is provided with internal threads matched with the external threads, the head of the plug is in threaded connection with the filling hole, the tail of the plug is provided with a nut, and the nut is welded with the shell.
Optionally, the filling holes at least comprise a feeding filling hole and a discharging filling hole, and the feeding filling hole and the discharging filling hole are positioned on the same side of the shell.
Optionally, the phase change heat storage medium comprises phase change paraffin, inorganic salt and liquid metal.
The invention also provides a manufacturing method of the integrated phase change heat storage component, which is used for manufacturing the integrated phase change heat storage component and comprises the following steps:
manufacturing an integrated phase change heat storage component by adopting an additive manufacturing process;
filling the integrated phase change heat storage component;
and (5) performing laser seal welding after sealing connection between the sealing structure and the filling hole.
As described above, the integrated phase change heat storage component and the manufacturing method have the following beneficial effects:
the heat storage and the circuit function of the product are combined through the design of the shielding heat-conducting structure and the heat storage cavity which are integrally formed with the shell, so that on one hand, the phase-change heat storage module is convenient to use, does not need to be additionally processed and manufactured, is installed with the circuit shell, and meanwhile, the overall weight of the device can be reduced; on the other hand, compared with the use of an independent phase change heat storage module, the heat transfer resistance is reduced, and the heat conduction performance and the heat control performance are improved; by arranging the grid heat storage structure in the heat storage cavity, the contact area between the grid heat storage structure and the phase-change heat storage medium is increased, the equivalent heat conductivity of the integrated phase-change heat storage component is improved, and the heat storage density is enhanced; by arranging the sealing structure, reliable filling and sealing of the phase-change heat storage medium are realized, and the packaging reliability is improved;
furthermore, the shielding effect is achieved through the shielding beam of the shielding heat-conducting structure, and meanwhile, the heat storage capacity can be improved through the phase-change heat storage medium filled in the shielding beam; the integrated phase-change heat storage component is formed by adopting an additive manufacturing process, has better heat conductivity, and can effectively improve the heat conductivity of a phase-change heat storage medium.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an integrated phase change heat storage assembly according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an integrated phase change heat storage assembly according to an embodiment of the present invention (with a cover plate removed).
Fig. 3 is a schematic filling diagram of an integrated phase change heat storage assembly according to an embodiment of the present invention.
Description of the reference numerals
10-a housing; 11-filling holes; 12-cover plate; 13-a heat storage cavity;
20-shielding a heat conducting structure; 21-shielding the cavity; 22-shielding plates; 23-separating beams; 24-cavity;
30-grid heat storage structure; 31-a main skeleton; 32-an auxiliary skeleton; 40-sealing structure;
100-integrating a phase change heat storage component;
200-heating table; 300-a vibration assembly; 301-a base; 302-a driver; 303-connecting rod; 304-a sliding table; 400-filling funnel.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
In order to describe the present invention in detail, a specific description will be given below of an integrated phase change heat storage assembly and a manufacturing method thereof:
referring to fig. 1 to 2, the present invention provides an integrated phase change heat storage assembly, comprising: the heat storage device comprises a shell 10, a shielding heat conduction structure 20, a grid heat storage structure 30 and a sealing structure 40, wherein a heat storage cavity 13 integrally formed with the shell 10 is formed in the shell 10, the heat storage cavity 13 is used for storing phase-change heat storage media, and a filling hole 11 communicated with the heat storage cavity 13 is formed in the side wall of the shell 10; the shielding and heat conducting structure 20 is integrally formed with the housing 10, and covers the upper and lower sides of the whole heat storage cavity 13, and is used for installing and shielding circuit components; the grid heat storage structure 30 is positioned in the heat storage cavity 13 and is integrally formed with the heat storage cavity 13; the sealing structure 40 is disposed at the filling hole 11 of the housing 10, and is used for sealing the phase-change heat storage medium in the heat storage cavity 13.
Specifically, the heat storage cavity 13 and the shielding heat conduction structure 20 are integrally formed with the shell 10, so that the phase change heat storage module can be manufactured through integrated design, on one hand, the phase change heat storage module is convenient to use, additional processing is not needed, the phase change heat storage module is installed with the circuit shell, and meanwhile, the overall weight of the device can be reduced; on the other hand, compared with the use of an independent phase-change heat storage module, the heat transfer resistance is reduced, and the heat conduction performance and the heat control performance of the integrated phase-change heat storage component are improved. Wherein the shielding and heat conducting structure 20 is used for circuit installation, electromagnetic shielding, heat conduction and mechanical interface; the heat storage cavity 13 is used for storing a phase-change heat storage medium, and the phase-change heat storage medium is used for absorbing heat energy generated when the circuit components work; the filling hole 11 is used for filling and encapsulating the phase-change heat storage medium; the grid heat storage structure 30 is arranged in the heat storage cavity 13 and is used for being in contact with the phase-change heat storage medium, so that the contact area with the phase-change heat storage medium is increased, the equivalent heat conductivity of the integrated phase-change heat storage component is improved, and the heat storage density is enhanced; the sealing structure 40 is used for sealing the heat storage cavity 13 so as to ensure the filling and sealing of the phase-change heat storage medium, avoid the leakage of the phase-change heat storage medium, realize the reliable filling and sealing of the phase-change heat storage medium and improve the packaging reliability.
In some embodiments, the grid heat storage structure 30 includes a main skeleton 31 horizontally arranged in a grid mesh shape and a plurality of auxiliary skeletons 32 vertically arranged on the main skeleton 31, and a plurality of the auxiliary skeletons 32 are arranged at equal heights. Specifically, the grid heat storage structure 30 is arranged in the whole heat storage cavity 13, and comprises a main framework 31 and a plurality of auxiliary frameworks 32, wherein the main framework 31 and the plurality of auxiliary frameworks 32 are integrally formed with the heat storage cavity 13, the main framework 31 is arranged in the heat storage cavity 13 horizontally in a grid net shape, the plurality of auxiliary frameworks 32 are arranged on the main framework 31 to play a role in supporting the main framework 31, and the main framework 31 and the auxiliary frameworks 32 are contacted with the phase-change heat storage medium, so that the contact area with the phase-change heat storage medium is increased, the heat storage density is improved, and the equivalent heat conductivity of the integrated phase-change heat storage component is further improved.
In the above embodiment, the auxiliary frameworks 32 are arranged in an array in a plurality of rows, and a plurality of auxiliary frameworks are arranged at intervals in each row. Specifically, on the basis that the main frameworks 31 are arranged in a grid net shape, the auxiliary frameworks 32 are arranged in an array shape, and the arrangement number of the auxiliary frameworks 32 can be set according to the actual size of the heat storage cavity 13.
In the above embodiment, each of the auxiliary skeletons 32 includes two skeleton portions connected in a cross-like manner, and the intersections of the two skeleton portions are connected to the main skeleton 31. Specifically, the intersecting angle of the two skeleton portions may be adjusted according to actual requirements, and in this embodiment, the intersecting angle of the two skeleton portions is 45 °.
The structure of the heat storage cavity 13 is adapted to the structure of the housing 10, and the housing 10, the heat storage cavity 13, the shielding and heat conducting structure 20 and the grid heat storage structure 30 are formed by an additive manufacturing process. The structure of the heat storage cavity 13 is adapted to the structure of the shell 10, so that on one hand, the space of the shell 10 can be fully utilized, the heat storage space can be increased, the total amount of the encapsulated phase-change heat storage medium can be increased, and meanwhile, the thermal resistance can be reduced, and the thermal conductivity can be enhanced; on the one hand, the weight of the whole device can be reduced. In addition, the housing 10, the heat storage cavity 13, the shielding heat conduction structure 20 and the grid heat storage structure 30 are formed through an additive manufacturing process (for example, 3D printing) which facilitates integrated forming, thereby facilitating enhancement of heat conduction performance. The integrated phase-change heat storage component adopts a three-dimensional structure based on an additive manufacturing process, has good heat conductivity, and effectively improves the heat conductivity of a phase-change heat storage medium.
In some embodiments, cover plates 12 are disposed on the upper and lower sides of the housing 10, the shielding and heat conducting structure 20 is disposed between the cover plates 12 and the heat storage cavity 13, and the cover plates 12 and the shielding and heat conducting structure 20 together form a plurality of shielding cavities 21 for electromagnetic shielding and isolation of circuit components. Specifically, the shielding heat conducting structure 20 is located between the cover plate 12 and the heat storage cavity 13, and each circuit component is located in the shielding cavity 21, and plays a role in electromagnetic shielding and isolation of the circuit component through the shielding cavity 21. According to the circuit arrangement requirement of the actual integrated phase change heat storage assembly, the shielding heat conduction structure 20 can be provided with a plurality of shielding cavities 21, and different circuit components are installed in each shielding cavity 21, which is not limited herein.
In addition, the shielding and heat conducting structure 20 comprises shielding plates 22 positioned on the upper side and the lower side of the heat storage cavity 13 and a plurality of staggered separation beams 23 positioned on the shielding plates 22, the separation beams 23, the shielding plates 22 and the cover plate 12 form a plurality of shielding cavities 21, and the circuit components are arranged in each shielding cavity 21; the inside of the separation beam 23 is provided with a cavity 24, and the cavity 24 is communicated with the heat storage cavity 13. Wherein, be used for installing circuit components and parts on the shield plate 22, the separation beam 23 sets up in the shield plate 22 the side of keeping away from heat-retaining chamber 13. The cavity 24 inside the separation beam 23 is communicated with the heat storage cavity 13, and the phase-change heat storage medium can be filled in the cavity 24, so that the heat storage capacity is further improved while the separation beam 23 plays a role in shielding.
In addition, the sealing structure 40 is a plug disposed at the filling hole 11, the head of the plug has an external thread, the filling hole 11 has an internal thread adapted to the external thread, the head of the plug is in threaded connection with the filling hole 11, and the tail of the plug has a nut, which is welded with the housing 10. Specifically, the filling and filling of the phase-change heat storage medium are realized through the filling hole 11, the sealing is performed by the plug after filling, the head of the plug is provided with the external thread, the filling hole 11 is provided with the internal thread, the head of the plug is in threaded fit with the filling hole 11, then the tail of the plug is welded with the outer wall of the shell 10 through welding (for example, laser sealing and the like can be adopted), so that the filling hole 11 is sealed by the threaded plug with the nut, after the plug is screwed up, the nut and the outer wall of the shell 10 are sealed by the laser welding, the reliable filling and sealing of the phase-change heat storage medium can be realized, and the packaging reliability is improved.
It will be appreciated that the filling holes 11 comprise at least a feed filling hole and a discharge filling hole, which are located on the same side of the housing 10. Wherein, pan feeding filling hole is used for filling phase change heat storage medium, and ejection of compact filling hole is used for spilling over of phase change heat storage medium, and in this embodiment, pan feeding filling hole and ejection of compact filling hole are arranged with equal altitude.
Illustratively, the phase change heat storage medium includes phase change paraffin, inorganic salts, and liquid metal. The phase change heat storage technology is to store energy by utilizing the phase change of a phase change heat storage medium, and mainly stores and releases heat by relying on the characteristic that the phase change heat storage medium absorbs and releases heat in the phase change process. The phase change heat storage medium absorbs heat under the high temperature working condition, so that the temperature of circuit components is not too high under the high temperature working condition; the phase change heat storage medium releases heat under low temperature industrial control, so that the temperature of circuit components is not greatly reduced.
In addition, the invention provides a manufacturing method of the integrated phase change heat storage component, which is used for manufacturing the integrated phase change heat storage component and comprises the following steps:
manufacturing the integrated phase change heat storage assembly 100 by adopting an additive manufacturing process;
filling the integrated phase change heat storage assembly 100;
and sealing and welding the sealing structure 40 and the filling hole 11 in a sealing way.
Specifically, the integrated phase-change heat storage assembly 100 is first manufactured by an additive manufacturing process (such as 3D printing), then the integrated phase-change heat storage assembly 100 is filled by a filling device to fill a phase-change heat storage medium, and finally the sealing structure 40 is used for sealing.
Referring to fig. 3, in this embodiment, the integrated phase change heat storage assembly 100 according to the present invention includes: heating platform 200, vibration subassembly 300, filling funnel 400, wherein, vibration subassembly 300 includes base 301, driving piece 302, connecting rod 303 and slip table 304, and base 301 sets up on heating platform 200, and driving piece 302 sets up on base 301, and driving piece 302 is equipped with the eccentric shaft, and the eccentric shaft is connected to connecting rod 303 one end, and slip table 304 is connected to the other end, and slip table 304 slidably sets up on base 301, and the filling funnel 400 is used for being convenient for the filling in filling hole 11 department when filling.
The step of filling the integrated phase change heat storage assembly 100 includes: mounting the integrated phase change heat storage assembly 100 on the sliding table 304, and placing the filling funnel 400 at the filling hole 11; pouring a heat-conducting medium (such as graphite particles) into the shell 10 through the filling hole 11 of the integrated phase-change heat storage assembly 100 at normal temperature; opening the vibration assembly 300 to make the integrated phase change heat storage assembly 100 vibrate reciprocally, and filling a phase change heat storage medium (for example, powdered paraffin) into the heat storage cavity 13 of the housing 10 through the filling funnel 400 in a vibration state; after the phase-change heat storage medium fills the heat storage cavity 13 of the shell 10, starting the heating table 200 to heat the integrated phase-change heat storage assembly 100 so as to melt the phase-change heat storage medium; when the phase-change heat storage medium is completely melted, the heating table 200 and the vibration assembly 300 are closed, and after the phase-change heat storage medium is cooled and solidified, the steps are continuously circulated until the phase-change heat storage medium cannot be refilled in the heat storage cavity 13; and plugging the filling hole 11 by adopting a plug, connecting the plug with the filling hole 11 in a threaded manner, and adopting laser sealing welding. Therefore, through the joint coordination of heating and vibration, on one hand, the filling efficiency can be ensured, the heat conducting medium and the phase-change heat storage medium are fully mixed, and the performance is ensured; on the other hand, the problem that the two external agglomerations are difficult to fill can be solved, and meanwhile, the smooth filling is ensured.
In summary, according to the integrated phase-change heat storage component and the manufacturing method provided by the invention, the shielding heat-conducting structure 20 and the heat storage cavity 13 which are integrally formed with the shell 10 are designed, so that on one hand, no additional processing is needed to manufacture the phase-change heat storage module, and meanwhile, the overall weight of the device can be reduced; on the other hand, the heat transfer resistance is reduced, and the heat conduction performance of the integrated phase change heat storage component is improved; by arranging the grid heat storage structure 30 in the heat storage cavity 13, the contact area with the phase-change heat storage medium is increased, the equivalent heat conductivity of the integrated phase-change heat storage component is improved, and the heat storage density is enhanced; further, by arranging the sealing structure 40, reliable filling sealing of the phase-change heat storage medium is realized, and packaging reliability is improved. Furthermore, the shielding effect is achieved through the separation beam 23 of the shielding heat conduction structure 20, and meanwhile, the heat storage capacity can be improved through the phase change heat storage medium filled in the separation beam 23; the integrated phase-change heat storage component is formed by adopting an additive manufacturing process, has better heat conductivity, and can effectively improve the heat conductivity of a phase-change heat storage medium.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (11)
1. An integrated phase change heat storage assembly comprising:
the shell is internally provided with a heat storage cavity which is integrally formed with the shell, the heat storage cavity is used for storing phase-change heat storage media, and the side wall of the shell is provided with a filling hole communicated with the heat storage cavity;
the shielding heat conduction structure is integrally formed with the shell, covers the upper side and the lower side of the heat storage cavity and is used for installing and shielding circuit components;
the grid heat storage structure is positioned in the heat storage cavity and is integrally formed with the heat storage cavity; and
and the sealing structure is arranged at the filling hole of the shell and is used for sealing the phase-change heat storage medium in the heat storage cavity.
2. The integrated phase change heat storage assembly of claim 1, wherein the grid heat storage structure comprises a main skeleton arranged horizontally in a grid mesh shape and a plurality of auxiliary skeletons vertically arranged on the main skeleton, wherein the auxiliary skeletons are arranged at equal heights.
3. The integrated phase change heat storage assembly of claim 2, wherein the auxiliary skeletons are arranged in an array in a plurality of rows, each row being provided with a plurality of spaced apart rows.
4. A unitary integrated phase change heat storage assembly as claimed in claim 2 or claim 3 wherein each said auxiliary skeleton comprises two skeleton portions connected in a cross-like manner, and the intersection of two said skeleton portions is connected to said main skeleton.
5. The integrated phase change heat storage assembly of claim 1 wherein the structure of the heat storage cavity is adapted to the structure of the housing, the heat storage cavity, the shielding heat transfer structure, and the grid heat storage structure being formed by an additive manufacturing process.
6. The integrated phase change heat storage assembly according to claim 1, wherein cover plates are arranged on the upper side and the lower side of the shell, the shielding heat conduction structure is arranged between the cover plates and the heat storage cavity, and the cover plates and the shielding heat conduction structure form a plurality of shielding cavities together for electromagnetic shielding and isolation of circuit components.
7. The integrated phase change heat storage assembly of claim 6, wherein the shielding and heat conducting structure comprises shielding plates positioned on the upper side and the lower side of the heat storage cavity and a plurality of separation beams positioned on the shielding plates, the separation beams, the shielding plates and the cover plate form a plurality of shielding cavities, and the circuit components are arranged in each shielding cavity; the inside cavity that has of separating beam, just the cavity with heat-retaining chamber intercommunication.
8. The integrated phase change heat storage assembly of claim 1, wherein the sealing structure is a plug disposed at the filling hole, the head of the plug has an external thread, the filling hole has an internal thread adapted to the external thread, the head of the plug is in threaded connection with the filling hole, and the tail of the plug has a nut, and the nut is welded with the housing.
9. The integrated phase change heat storage assembly of claim 1 or 8, wherein the filling holes comprise at least a feed filling hole and a discharge filling hole, the feed filling hole and the discharge filling hole being located on the same side of the housing.
10. The integrated phase change heat storage assembly of claim 1 wherein the phase change heat storage medium comprises phase change paraffin, inorganic salts, and liquid metal.
11. A method of manufacturing an integrated phase change heat storage assembly for use in the manufacture of an integrated phase change heat storage assembly as claimed in any one of claims 1 to 10, comprising:
manufacturing an integrated phase change heat storage component by adopting an additive manufacturing process;
filling the integrated phase change heat storage component;
and (5) performing laser seal welding after sealing connection between the sealing structure and the filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311389818.2A CN117308658B (en) | 2023-10-24 | Integrated phase change heat storage component and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311389818.2A CN117308658B (en) | 2023-10-24 | Integrated phase change heat storage component and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117308658A true CN117308658A (en) | 2023-12-29 |
| CN117308658B CN117308658B (en) | 2024-06-04 |
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