CN219642677U - Box-packed film capacitor - Google Patents
Box-packed film capacitor Download PDFInfo
- Publication number
- CN219642677U CN219642677U CN202320957368.1U CN202320957368U CN219642677U CN 219642677 U CN219642677 U CN 219642677U CN 202320957368 U CN202320957368 U CN 202320957368U CN 219642677 U CN219642677 U CN 219642677U
- Authority
- CN
- China
- Prior art keywords
- sealing layer
- film capacitor
- circulation channel
- capacitor
- heat
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 239000003292 glue Substances 0.000 claims abstract description 37
- 238000009833 condensation Methods 0.000 claims description 19
- 230000005494 condensation Effects 0.000 claims description 19
- 238000001704 evaporation Methods 0.000 claims description 17
- 230000008020 evaporation Effects 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 claims 6
- 239000010409 thin film Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 45
- 230000017525 heat dissipation Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a box-packed film capacitor, which relates to the technical field of capacitors and comprises a capacitor core, a shell and a glue sealing layer, wherein the glue sealing layer is arranged between the capacitor core and the shell, a heat conducting component is arranged in the glue sealing layer and comprises a plurality of heat conducting pipes, one end of each heat conducting pipe is positioned in the glue sealing layer, and the other end of each heat conducting pipe is positioned outside the glue sealing layer. The utility model has the effect of improving the box-packed film capacitor to work in a high-temperature environment and is easy to shorten the service life.
Description
Technical Field
The utility model relates to the technical field of capacitors, in particular to a box-packed film capacitor.
Background
The film capacitor is formed by laminating a metal foil as an electrode with a plastic film such as polyethylene, polypropylene, polystyrene or polycarbonate, and winding the laminated film from both ends. The box-packed film capacitor comprises an internal film capacitor and an external shell, and pouring sealant for fixing the position of the film capacitor is arranged between the shell and the film capacitor.
In the box-packed film capacitor working operation process, heat can be generated inside, if the heat inside the capacitor is not discharged in time, the capacitor works in a high-temperature environment for a long time, and the service life of the capacitor is easy to shorten.
Disclosure of Invention
In order to solve the problem that the boxed film capacitor works in a high-temperature environment and is easy to shorten the service life, the utility model provides the boxed film capacitor.
The utility model provides a box-packed film capacitor, which adopts the following technical scheme:
the utility model provides a box-packed film capacitor, capacitor core, casing and glue the sealing layer, glue the sealing layer setting between capacitor core and casing, just be provided with heat conduction subassembly in the sealing layer, heat conduction subassembly includes many heat conduction pipes, heat conduction pipe one end is located the sealing layer, and the other end is located outside the sealing layer.
Through adopting above-mentioned technical scheme, through setting up many heat pipes for heat in the condenser core can be through outside the heat pipe discharge casing, has accelerated the inside thermal discharge of casing, has reduced because the inside high temperature of casing makes the possibility that condenser life shortens.
Optionally, the capacitor core is made of a high-temperature resistant material of a metallized polypropylene film, and the shell is made of PPS high-temperature resistant plastic particles.
By adopting the technical scheme, the related components are manufactured by adopting the materials, the high-temperature resistant threshold value in the capacitor can be improved, and the influence of the high-temperature environment on the service life of the capacitor is reduced.
Optionally, the heat conducting pipe comprises an outer circulation channel and an inner circulation channel, the outer circulation channel is enclosed outside the inner circulation channel, the side wall of the inner circulation channel is made of capillary porous materials, and two ends of the inner circulation channel are closed;
condensate capable of circulating in the outer circulation channel and the inner circulation channel is encapsulated in the heat conduction pipe.
By adopting the technical scheme, heat in the rubber sealing layer can be diffused through the inner circulation channel by evaporating the condensate, the condensate flows back from the outer circulation channel after being cooled, and the cooling and heat dissipation of the heat conduction pipe are realized repeatedly.
Optionally, the heat conducting pipe comprises an evaporation section and a condensation section along the length direction of the heat conducting pipe, wherein the evaporation section is positioned in the glue sealing layer, and the condensation section is positioned outside the glue sealing layer.
By adopting the technical scheme, the heat in the capacitor is transferred to the evaporation section of the heat conduction pipe, condensate in the heat conduction pipe is evaporated, the condensate is diffused to the condensation section along the inner circulation channel, and the condensate is returned to the evaporation section through the outer circulation channel after the condensation section is cooled and liquefied; the condensate circulates in a reciprocating way to realize the rapid external discharge of the internal temperature of the capacitor.
Optionally, a plurality of pointed cones are fixed on the outer wall of the evaporation section, and the pointed cones are buried in the glue sealing layer.
Through adopting above-mentioned technical scheme, according to the analysis, under high temperature environment, one of the easy cracked reasons of rubber shell and pouring sealant is that there is defect such as bubble, impurity in the pouring sealant, and these defects can lead to the intensity of glue seal to reduce, is equipped with the pointed cone outside the condensation segment, can reduce when glue seal is irritated to glue seal, produces the possibility of bubble to improve the pouring quality of glue seal, improve the shaping intensity of glue seal.
Optionally, a plurality of cooling fins are fixed on the outer wall of the condensation section.
Through adopting above-mentioned technical scheme, set up the fin and can accelerate the heat dissipation of condensation segment department, accelerate the inside heat of condenser and distribute.
Optionally, a heat conducting layer is arranged on the surface, close to the condensation section, of the glue sealing layer.
Through adopting above-mentioned technical scheme, the heat conduction layer can protect inside capacitor core on the one hand, and the heat dissipation of inside capacitor can be accelerated to the heat conduction layer in addition.
Optionally, the heat conducting pipe is of a flat structure.
By adopting the technical scheme, the thickness of the capacitor can be thinner, so that the volume of the capacitor is reduced.
In summary, the present utility model includes at least one of the following beneficial effects:
1. the heat conducting pipe is arranged in the glue sealing layer, so that the diffusion of heat in the capacitor can be accelerated, and the problem that the service life of the capacitor is reduced because the capacitor is in a high-temperature environment for a long time is solved;
2. the pointed cone is fixed on the side wall of the heat conducting pipe, so that the possibility of generating bubbles in the glue sealing layer during glue filling of the glue sealing layer can be reduced, the forming quality of the glue sealing layer is better, the strength is better, and the shell and the glue sealing layer are not easy to crack in a high-temperature environment;
3. the cooling fin is arranged at the condensation section of the heat conduction pipe, and the heat conduction layer is arranged to enable the heat conduction effect of the heat conduction pipe to be better, so that the heat dissipation efficiency of the capacitor can be accelerated.
Drawings
FIG. 1 is a schematic view, partially in section, of a boxed film capacitor according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram showing the overall structure of a film capacitor packed in a box according to an embodiment of the present utility model;
fig. 3 is a cross-sectional view of a box-packed film capacitor according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a capacitor core; 2. a housing; 3. a glue sealing layer; 4. a heat conduction pipe; 41. an outer circulation passage; 42. an inner circulation passage; 43. an evaporation section; 44. a condensing section; 45. a thin layer; 5. a pointed cone; 6. a heat sink; 7. a heat conducting layer; 8. a metal spraying layer; 9. and (5) a lead wire.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
Referring to fig. 1, a box-packed film capacitor disclosed by the embodiment of the utility model comprises a capacitor core 1 and a shell 2, wherein the shell 2 is made of PPS high-temperature-resistant plastic particles, the capacitor core 1 is formed by winding metallized polypropylene film high-temperature-resistant materials through an automatic winding machine, metal spraying layers 8 are arranged at two ends of the capacitor core 1, the metal spraying layers 8 are formed by condensing molten zinc wires, and tin-plated copper wires are welded on the metal spraying layers 8 at two ends after the metal spraying layers 8 are formed by processing, so as to form leads 9.
Referring to fig. 2 and 3, after the construction of the lead wire 9 is completed, the capacitor core 1 is placed in the case 2 with a gap between the capacitor core 1 and the inner wall of the case 2, and a heat conduction assembly including a plurality of heat conduction pipes 4 arranged at intervals around the capacitor core 1 is provided in the gap.
Referring to fig. 3, the heat transfer pipe 4 includes an outer circulation channel 41 and an inner circulation channel 42 therein, the outer circulation channel 41 surrounding a circumferential side of the inner circulation channel 42, and the inner circulation channel 42 and the outer circulation channel 41 being partitioned by a thin layer 45 made of a capillary porous material, both ends of the inner circulation channel 42 being closed. The heat pipe 4 is internally sealed with condensate capable of flowing between the inner circulation passage 42 and the outer circulation passage 41.
Referring to fig. 2 and 3, the heat transfer pipe 4 includes an evaporation section 43 and a condensation section 44 along a length direction thereof, condensate is vaporized by heating in the evaporation section 43, is diffused to the condensation section 44 along the inner circulation path 42, is permeated into the outer circulation path 41 along the thin layer 45 after the condensation section 44 is liquefied by cooling, and flows back to the evaporation section 43 along the outer circulation path 41, and the condensate is repeatedly moved along the path to discharge heat of the evaporation section 43.
Referring to fig. 2 and 3, the heat conduction pipe 4 has a flat rectangular parallelepiped structure, a plurality of spikes 5 are fixed to the outer wall of the evaporation section 43, and a heat sink 6 is fixed to the outer wall of the condensation section 44. After a plurality of heat conduction pipes 4 are arranged in a gap between the capacitor core 1 and the shell 2, high-temperature-resistant epoxy resin is poured between the shell 2 and the capacitor core 1, and the high-temperature-resistant epoxy resin is solidified to form an adhesive layer 3. After the molding of the seal layer 3, the evaporation section 43 is buried in the seal layer 3, and the condensation section 44 is exposed to the seal layer 3. Because the outer wall of the evaporation section 43 is fixed with the pointed cone 5, bubbles are not easy to form in the glue sealing layer 3 when the glue sealing layer 3 is filled, the forming quality of the glue sealing layer 3 is better, the strength is higher, and the glue sealing layer is not easy to crack with the shell 2 in a high-temperature environment. Because the cooling fins 6 are fixed on the condensing section 44, the heat dissipation of the condensing section 44 can be accelerated, and the liquefying speed of condensate at the condensing section 44 is accelerated, so that the heat dissipation effect of the heat conducting tube 4 is better. The heat conduction pipe 4 is arranged to be of a flat cuboid structure, so that the thickness of the capacitor can be reduced, and the volume of the capacitor is smaller.
Referring to fig. 2 and 3, after the molding of the glue sealing layer 3, the surface of the glue sealing layer 3, which is close to the condensation section 44, is filled with heat conducting silica gel, and after the heat conducting silica gel is solidified, a heat conducting layer 7 is formed, and the capacitor core 1 and the external environment can be isolated by arranging the heat conducting layer 7, so that the internal capacitor core 1 can be protected, and the heat dissipation of the capacitor can be accelerated.
The implementation principle of the box-packed film capacitor provided by the embodiment of the utility model is as follows: the heat in the capacitor can be rapidly discharged through the heat conducting components by arranging the plurality of heat conducting components in the glue sealing layer 3, so that the possibility that the normal use of the capacitor is influenced due to heat accumulation in the capacitor is reduced; the taper 5 is fixed on the periphery of the heat conducting pipe 4, so that the possibility of air bubbles in the adhesive sealing layer 3 during molding of the adhesive sealing layer 3 can be reduced, the strength of the adhesive sealing layer 3 is improved, and the possibility of cracking of the shell 2 and the adhesive sealing layer 3 in a high-temperature environment is reduced.
The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, for the purposes of describing the present utility model, and is to be construed as limited only by the appended claims.
Claims (8)
1. A box-packed film capacitor, characterized in that: including capacitor core (1), casing (2) and glue sealing layer (3), glue sealing layer (3) set up between capacitor core (1) and casing (2), just be provided with heat conduction subassembly in glue sealing layer (3), heat conduction subassembly includes many heat pipe (4), heat pipe (4) one end is located glues sealing layer (3), and the other end is located glues sealing layer (3) outward.
2. A packaged film capacitor as defined in claim 1 wherein: the capacitor core (1) is made of a high-temperature-resistant material of a metallized polypropylene film, and the shell (2) is made of PPS high-temperature-resistant plastic particles.
3. A packaged film capacitor as defined in claim 1 wherein: the heat conduction pipe (4) comprises an outer circulation channel (41) and an inner circulation channel (42), the outer circulation channel (41) is surrounded outside the inner circulation channel (42), the side wall of the inner circulation channel (42) is made of capillary porous materials, and two ends of the inner circulation channel (42) are closed;
the heat conduction pipe (4) is internally encapsulated with condensate which can flow in the outer circulation channel (41) and the inner circulation channel (42).
4. A box-packed film capacitor according to claim 3, wherein: the heat conduction pipe (4) comprises an evaporation section (43) and a condensation section (44) along the length direction of the heat conduction pipe, the evaporation section (43) is positioned in the adhesive sealing layer (3), and the condensation section (44) is positioned outside the adhesive sealing layer (3).
5. A packaged thin film capacitor as defined in claim 4 wherein: the outer wall of the evaporation section (43) is fixedly provided with a plurality of pointed cones (5), and the pointed cones (5) are buried in the glue sealing layer (3).
6. A packaged thin film capacitor as defined in claim 4 wherein: and a plurality of cooling fins (6) are fixed on the outer wall of the condensation section (44).
7. A packaged thin film capacitor as defined in claim 4 wherein: the surface of the glue sealing layer (3) close to the condensation section (44) is provided with a heat conducting layer (7).
8. A box-packed film capacitor according to claim 3, wherein: the heat conducting pipe (4) is of a flat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957368.1U CN219642677U (en) | 2023-04-17 | 2023-04-17 | Box-packed film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957368.1U CN219642677U (en) | 2023-04-17 | 2023-04-17 | Box-packed film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219642677U true CN219642677U (en) | 2023-09-05 |
Family
ID=87807958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320957368.1U Active CN219642677U (en) | 2023-04-17 | 2023-04-17 | Box-packed film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219642677U (en) |
-
2023
- 2023-04-17 CN CN202320957368.1U patent/CN219642677U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |