CN110400677A - Transformer and its radiator - Google Patents
Transformer and its radiator Download PDFInfo
- Publication number
- CN110400677A CN110400677A CN201910740300.6A CN201910740300A CN110400677A CN 110400677 A CN110400677 A CN 110400677A CN 201910740300 A CN201910740300 A CN 201910740300A CN 110400677 A CN110400677 A CN 110400677A
- Authority
- CN
- China
- Prior art keywords
- winding
- heat
- thermally conductive
- radiator
- fan
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of transformer and its radiators, wherein the radiator of transformer includes winding shell and is arranged in the intracorporal thermally conductive frame of winding shell, the winding placed cavity for placing winding is equipped in thermally conductive frame, encapsulating has insulated heat-conducting medium between thermally conductive frame and winding in winding placed cavity, and thermally conductive frame is thermally conductive nonmetallic framework.At work, winding is mounted in winding placed cavity transformer, and the heat that winding generates is conducted by insulated heat-conducting medium to thermally conductive frame position.By the way that thermally conductive frame is arranged around winding, the highest zone heat of winding is conducted to lowermost extent heat, reaches the temperature uniformity of entire winding, is reduced because local temperature is excessively high, the case where causing insulated heat-conducting medium to crack, effectively extends the service life of transformer.
Description
Technical field
The present invention relates to heat radiation of electrical apparatus technical field, in particular to a kind of radiator of transformer.The invention further relates to
A kind of transformer including above-mentioned radiator.
Background technique
As electricity needs increases, transformer efficiency is improved, and wherein the winding of transformer is main heating device, traditional
Winding setting is in winding enclosure interior, and then encapsulating insulating heat-conduction material fills winding and winding, winding and skeleton, winding and shell
Gap between body etc..
When transformer efficiency improves and winding current increases, internal heat rises and constantly aggregation, and will appear office
Portion's temperature is excessively high, and heat is uneven.Since the insulation performance to shell and Embedding Material is more demanding, the numerical value of thermal coefficient raising
Limited, excessively high so as to cause internal winding temperature, great temperature unevenness will lead to insulating materials stress cracking.
Therefore, the service life for how extending transformer is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of radiators of transformer, to extend the service life of transformer.The present invention
Another object be to provide a kind of transformer including above-mentioned radiator.
To achieve the above object, the present invention provides a kind of radiator of transformer, comprising:
Winding shell；
The winding that setting is equipped in the intracorporal thermally conductive frame of the winding shell, the thermally conductive frame for placing winding is placed
Chamber, encapsulating has insulated heat-conducting medium between the thermally conductive frame and winding in the winding placed cavity, and the thermally conductive frame is thermally conductive non-
Metal frame.
Preferably, the thermally conductive frame includes annular thermal conductive shell and the thermal conductive belt that is arranged in the annular thermal conductive shell,
The thermal conductive belt is for being spaced two neighboring winding, the lateral wall patch of the heat-radiating substrate (52) and the annular thermal conductive shell
It closes.
Preferably, the annular thermal conductive shell inner wall and winding outer wall gap are less than or equal to 10mm, the thermal conductive belt outer wall
It is less than or equal to 8mm with winding outer wall gap.
Preferably, the thermally conductive frame further includes the fixed station that annular thermal conductive shell bottom end evagination is arranged in, described solid
Determine platform and is located at the annular thermal conductive shell dog-ear position, the annular thermal conductive shell dog-ear concave side wall setting.
Preferably, further includes:
Radiator, the radiator include radiating fin and the heat dissipation base for radiating to winding in the winding placed cavity
Plate, the radiating fin are connect with the heat-radiating substrate, and the heat-radiating substrate is bonded with the lateral wall of the thermally conductive frame；
And the fan being connect with the radiator.
Preferably, heat-dissipating cavity is additionally provided in the winding shell, the radiator and the fan are respectively positioned on described dissipate
In hot cavity, the heat-dissipating cavity is connected to the winding placed cavity.
It preferably, further include being located in the heat-dissipating cavity, and the wind on the outside of the radiator and the fan is set
Baffle is fanned, the fan guard side extends to the heat-dissipating cavity opposite sides, and the fan is arranged in the radiating fin
Bottom end, the fan guard include along the sequentially connected housing installation portion of gas flow direction, fan support portion, fan envelope
Plate, the first wind deflector, fin sealing plate, the second wind deflector and partition；
The housing installation portion is fixedly connected with the winding shell, and the fan support portion and the fan bottom connect
It connects, and the fan support portion is equipped with the venthole with the fan face；
First wind deflector top is to close close to the heat-radiating substrate direction；
Second wind deflector is obliquely installed, for being oriented to air-flow；
The partition will be divided into air intake passage and outlet air circulation passage between the heat-dissipating cavity.
Preferably, the fan guard is integrated bending and molding structure.
Preferably, the outside bonding position of the heat-radiating substrate and the thermally conductive frame is equipped with thermal grease layer.
A kind of transformer, including radiator and the winding being arranged in winding placed cavity, the radiator is above-mentioned
Described in any item radiators.
In the above-mentioned technical solutions, the radiator of transformer provided by the invention include: winding shell and setting around
The group intracorporal thermally conductive frame of shell is equipped with the winding placed cavity for placing winding in thermally conductive frame, in winding placed cavity thermally conductive frame with around
Encapsulating has insulated heat-conducting medium between group, and thermally conductive frame is thermally conductive nonmetallic framework.At work, winding is mounted on winding to transformer
In placed cavity, the heat that winding generates is conducted by insulated heat-conducting medium to thermally conductive frame position.
As can be seen from the above description, in the radiator of transformer provided by the present application, by being arranged around winding
The highest zone heat of winding is conducted to lowermost extent heat by thermally conductive frame, reaches the temperature uniformity of entire winding, reduce because
The case where local temperature is excessively high, and insulated heat-conducting medium is caused to crack effectively extends the service life of transformer.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of transformer provided by the embodiment of the present invention；
Fig. 2 is structural schematic diagram of the transformer described in Fig. 1 along the direction A-A；
Fig. 3 is the exploded view of transformer provided by the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of thermally conductive frame provided by the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the thermally conductive frame of another kind provided by the embodiment of the present invention.
Wherein in Fig. 1-5:
1- winding；
The thermally conductive frame of 2-, 21- bolt, 22- radiator mounting portion, 23- annular thermal conductive shell, 24- winding placed cavity, 25- are led
The torrid zone；
The thermally conductive frame placed cavity of 3- winding shell, 31-, 32- heat-dissipating cavity；
4- fan guard, 41- partition, the second wind deflector of 42-, 43- fin sealing plate, the first wind deflector of 44-, 45- fan envelope
Plate, 46- fan support portion, 47- housing installation portion；
5- radiator, 51- radiating fin, 52- heat-radiating substrate；
6- fan, 7- fixed column.
Specific embodiment
Core of the invention is to provide a kind of radiator of transformer, to extend the service life of transformer.The present invention
Another core be to provide a kind of transformer including above-mentioned radiator.
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and embodiment party
The present invention is described in further detail for formula.
Fig. 1 is please referred to Fig. 5.
In a specific embodiment, the radiator for the transformer that the specific embodiment of the invention provides includes winding shell
Body 3 and the thermally conductive frame 2 being arranged in winding shell 3, specifically, winding shell 3 is insulation shell.It is equipped with and is used in thermally conductive frame 2
The winding placed cavity 24 for placing winding 1, encapsulating has insulated heat-conducting medium between thermally conductive frame 2 and winding 1 in winding placed cavity 24, leads
Hot frame 2 is thermally conductive nonmetallic framework.Specifically, thermally conductive frame 2 is fastened on 3 bottom of winding shell by screw 21, it is fixed reliable, no
Increase extra mounting space.
In order to preferably thermally conductive, the thermally conductive frame placed cavity 31 of thermally conductive frame 2 is placed in the setting of winding shell 3, and thermally conductive 2 bottom wall of frame is set
There is winding mounting opening, thermally conductive frame placed cavity 31 is connected to by winding mounting opening with winding placed cavity 24, it is preferable that thermally conductive frame is put
The gap encapsulating for setting thermally conductive outer frame wall and insulation shell inner wall in chamber 31 has insulated heat-conducting medium, and partial heat is conducted to insulation shell
Body, specifically, thermally conductive outer frame wall and 3 side wall of winding shell and bottom wall gap are less than or equal to 10mm, specifically, can be with 8mm-
10mm facilitates insulated heat-conducting medium to fill.
At work, winding 1 is mounted in winding placed cavity 24 transformer, and the heat that winding 1 generates passes through insulating heat-conductive
Medium is conducted to thermally conductive 2 position of frame.
As can be seen from the above description, in the radiator of the transformer provided by the application specific embodiment, by
Thermally conductive frame 2 is arranged in 1 surrounding of winding, and the highest zone heat of winding 1 is conducted to lowermost extent heat, reaches entire winding 1
The case where temperature uniformity reduces because local temperature is excessively high, insulated heat-conducting medium is caused to crack, insulated heat-conducting medium is because of temperature difference
The risk for generating cracking substantially reduces, and effectively extends the service life of transformer.
Thermally conductive frame 2 includes annular thermal conductive shell 23 and the thermal conductive belt 25 being arranged in annular thermal conductive shell 23, thermal conductive belt 25
For being spaced two neighboring winding 1, heat-radiating substrate 52 is bonded with the lateral wall of annular thermal conductive shell 23, annular 23 He of thermal conductive shell
Equal encapsulating has insulated heat-conducting medium between 3 inner wall of thermal conductive belt 25 and winding shell.
Specifically, it is preferable that the gap of 1 outer wall of thermal conductive belt 25 and winding be less than or equal to 8mm, specifically, thermal conductive belt 25 and around
The gap of 1 outer wall of group can be 6mm-8mm, not only can guarantee that gap filling heat conducted well, but also can be to avoid too thick
Embedding Material cause higher thermal resistance and biggish weight.
Specifically, annular thermal conductive shell 23 and 25 inner wall of thermal conductive belt and 1 outer wall gap of winding are less than or equal to 10mm, specifically
, annular thermal conductive shell 23 and 25 inner wall of thermal conductive belt and 1 outer wall gap of winding are 8mm-10mm, both can guarantee gap filling heat
It conducts well, and higher thermal resistance and biggish weight can be caused to avoid too thick Embedding Material.
As shown in Figure 4 and Figure 5, for the ease of the thermally conductive frame 2 of fixation, which further includes being arranged in annular thermal conductive shell
The fixed station 26 of 23 bottom end evaginations, fixed station 26 are located at annular 23 dog-ear position of thermal conductive shell, annular 23 side of thermal conductive shell dog-ear
The setting of wall indent.Specifically, fixed station 26 is equipped with mounting hole, it is connect by threaded fastener with 3 bottom of winding shell.Fixed station
26 settings are installed in annular 23 outside of thermal conductive shell convenient for the later period.Annular 23 dog-ear concave side wall of thermal conductive shell setting, so that around
Group 1 and the spacing of annular thermal conductive shell 23 are more uniform, the case where quickly spreading convenient for heat, reduce 1 hot-spot of winding.
For the ease of improving mounting stability, it is preferable that fixed station 26 is multiple, fixed station setting reinforcing rib, reduction later period
Generate deformation.
In a specific embodiment, which further includes radiator 5 and the fan connecting with radiator 56.It dissipates
Hot device 5 include radiating fin 51 and for in winding placed cavity 24 winding radiate heat-radiating substrate 52, radiating fin 51 and dissipate
Hot substrate 52 connects.Heat-radiating substrate 52 is bonded with the lateral wall of the thermally conductive frame 2, specifically, the radiator mounting portion of thermally conductive frame 2
22 are bonded with heat-radiating substrate 52, are taken away the heat that winding 1 generates by fan 6.Preferably, heat-radiating substrate 52 and thermally conductive frame 2
Outside bonding position be equipped with thermal grease layer, reduce thermal contact resistance.
The heat-radiating substrate 52 of radiator 5 is mounted on thermally conductive frame 2 by being no less than 2 bolts 21 by specific thermally conductive frame 2
On radiator mounting portion 22.
When work, winding 1 generates heat, arrives first at insulated heat-conducting medium, and heat reaches annular thermal conductive shell 23 and leads
Behind the torrid zone 25, be transmitted to radiator mounting portion 22 it is subsequent it is continuous be conducted to radiator 5, eventually arrive at fin 51.6 exhausting of fan, warp
Fin 51 is crossed, heat is taken away.
The heat of entire winding 1 transfers out to reduce the whole temperature of winding 1 by the radiator 5 being placed on thermally conductive frame 2
Degree.
Specifically, being additionally provided with heat-dissipating cavity 32 in winding shell 3, radiator 5 and fan 6 are respectively positioned in heat-dissipating cavity 32,
Heat-dissipating cavity 32 is connected to winding placed cavity 24.It is preferred that winding shell 3 is an integral molding structure.Specifically, fan 6 can position
Top or decentralization in radiator 5, since hot-air rises, it is preferable that fan 6 is located at 5 lower section of radiator, and 5 heat of radiator is logical
Cross top discharge.
In order to improve heat dissipation effect, it is preferable that radiating fin 51 is multiple groups, and radiating fin 51 is along 1 horizontal arrangement direction of winding
It sets gradually, radiating fin 51 is connect with heat-radiating substrate 52.
In a specific embodiment, which further includes being located in heat-dissipating cavity 32, and be arranged in radiator 5
With the fan guard 4 in 6 outside of fan.Specifically, 4 side of fan guard extends to 32 opposite sides of heat-dissipating cavity, fan 6 is arranged
In the bottom end of radiating fin 51, fan guard 4 includes along the sequentially connected housing installation portion 47 of gas flow direction, fan support
Portion 46, fan sealing plate 45, the first wind deflector 44, fin sealing plate 43, the second wind deflector 42 and partition 41.Fin sealing plate 43 allows fan
6 wind fully enters radiating fin 51, improves heat dissipation effect.Second wind deflector 42 guidance gas enters radiator 5, reduces import
Windage.
Housing installation portion 47 is fixedly connected with winding shell 3.Radiating fin 51, fin envelope are smoothly flowed into for the ease of gas
Plate 43 is bonded with 51 side wall of radiating fin, and fin sealing plate 43 is connect by fixed column 7 with heat-radiating substrate 52, for fixing fin
Sealing plate 43.
Fan support portion 46 is connect with 6 bottom of fan, and fan support portion 46 is equipped with the venthole with 6 face of fan.
A no less than fan 6 is installed in fan support portion 46.
First wind deflector, 44 top is close to close 52 direction of heat-radiating substrate, so that the gas through passing through fan 6 smoothly flows to
5 position of radiator.
Second wind deflector 42 is obliquely installed, for being oriented to air-flow.Second wind deflector 42 guides outlet air, reduces out one's intention as revealed in what one says
Resistance.
Partition 41 will be divided into air intake passage and outlet air circulation passage between heat-dissipating cavity 32.Partition 41 by air inlet and air outlet into
The effective isolation of row.Partition 41 is for allowing air inlet and air outlet to keep a distance, heat dissipation caused by preventing because of air duct short circuit
Effect is poor.
For the ease of processing fan guard 4, it is preferable that fan guard 4 is integrated bending and molding structure.Specifically, fan is kept off
Plate 4 is metal plate.
In a specific embodiment, the inlet end of heat-dissipating cavity 32 and outlet side are respectively positioned on separate on winding shell 3
24 one end of winding placed cavity, heat-dissipating cavity 32 is cartridge type cavity, and winding shell 3 is an integral molding structure.
It includes radiator and the winding being arranged in winding placed cavity 1 that the application, which provides a kind of transformer, wherein radiating
Device is any of the above-described kind of radiator.Wherein, winding 1 is high-voltage winding.The specific knot about radiator is described above
Structure, the application include above-mentioned radiator, equally have said effect.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of radiator of transformer characterized by comprising
Winding shell (3)；
Thermally conductive frame (2) in the winding shell (3) is set, be equipped in the thermally conductive frame (2) for place winding (1) around
It organizes placed cavity (24), encapsulating has insulating heat-conductive Jie between the thermally conductive frame (2) and winding (1) in the winding placed cavity (24)
Matter, the thermally conductive frame (2) are thermally conductive nonmetallic framework.
2. radiator according to claim 1, which is characterized in that the thermally conductive frame (2) includes annular thermal conductive shell
(23) and thermal conductive belt (25) of the setting in the annular thermal conductive shell (23), the thermal conductive belt (25) are two neighboring for being spaced
Winding (1), the heat-radiating substrate (52) are bonded with the lateral wall of the annular thermal conductive shell (23).
3. radiator according to claim 2, which is characterized in that annular thermal conductive shell (23) inner wall and winding
(1) outer wall gap is less than or equal to 10mm, and thermal conductive belt (25) outer wall and winding (1) outer wall gap are less than or equal to 8mm.
4. radiator according to claim 2, which is characterized in that the thermally conductive frame (2) further includes being arranged in the ring
The fixed station (26) of shape thermal conductive shell (23) bottom end evagination, the fixed station (26) are located at described annular thermal conductive shell (23) dog-ear
Position, annular thermal conductive shell (23) the dog-ear concave side wall setting.
5. radiator according to claim 1, which is characterized in that further include:
Radiator (5), the radiator (5) include radiating fin (51) and are used for the interior winding of the winding placed cavity (24)
(1) heat-radiating substrate (52) to radiate, the radiating fin (51) connect with the heat-radiating substrate (52), the heat-radiating substrate (52)
It is bonded with the lateral wall of the thermally conductive frame (2)；
And the fan (6) being connect with the radiator (5).
6. radiator according to claim 5, which is characterized in that be additionally provided with heat-dissipating cavity in the winding shell (3)
(32), the radiator (5) and the fan (6) are respectively positioned in the heat-dissipating cavity (32), the heat-dissipating cavity (32) and institute
State winding placed cavity (24) connection.
7. radiator according to claim 6, which is characterized in that it further include interior positioned at the heat-dissipating cavity (32), and
Fan guard (4) on the outside of the radiator (5) and the fan (6) is set, and fan guard (4) side extends to institute
Heat-dissipating cavity (32) opposite sides is stated, the fan (6) is arranged in the bottom end of the radiating fin (51), the fan guard
It (4) include along the sequentially connected housing installation portion of gas flow direction (47), fan support portion (46), fan sealing plate (45),
One wind deflector (44), fin sealing plate (43), the second wind deflector (42) and partition (41)；
The housing installation portion (47) is fixedly connected with the winding shell (3), the fan support portion (46) and the fan
(6) bottom connects, and the fan support portion (46) is equipped with the venthole with the fan (6) face；
First wind deflector (44) top is to close close to the heat-radiating substrate (52) direction；
Second wind deflector (42) is obliquely installed, for being oriented to air-flow；
The partition (41) will be divided into air intake passage and outlet air circulation passage between the heat-dissipating cavity (32).
8. radiator according to claim 7, which is characterized in that the fan guard (4) is integrated bending and molding knot
Structure.
9. radiator according to claim 7, which is characterized in that the heat-radiating substrate (52) and the thermally conductive frame (2)
Outside bonding position be equipped with thermal grease layer.
10. a kind of transformer, including radiator and the winding being arranged in winding placed cavity (1), which is characterized in that described to dissipate
Hot charging is set to radiator of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740300.6A CN110400677A (en) | 2019-08-12 | 2019-08-12 | Transformer and its radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740300.6A CN110400677A (en) | 2019-08-12 | 2019-08-12 | Transformer and its radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110400677A true CN110400677A (en) | 2019-11-01 |
Family
ID=68327991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910740300.6A Pending CN110400677A (en) | 2019-08-12 | 2019-08-12 | Transformer and its radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110400677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112105241A (en) * | 2020-09-30 | 2020-12-18 | 追信数字科技有限公司 | Exoskeleton plug-in mobile phone heat dissipation device and manufacturing method thereof |
| CN113038752A (en) * | 2021-03-04 | 2021-06-25 | 台达电子企业管理（上海）有限公司 | Magnetic element module and vehicle-mounted charger |
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| CN208922847U (en) * | 2018-10-22 | 2019-05-31 | 杭州智频科技有限公司 | Photovoltaic single-phase transformer |
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| US9401237B1 (en) * | 2012-04-23 | 2016-07-26 | Universal Lighting Technologies, Inc. | Core passage step apparatus and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113038752A (en) * | 2021-03-04 | 2021-06-25 | 台达电子企业管理（上海）有限公司 | Magnetic element module and vehicle-mounted charger |
| CN113038752B (en) * | 2021-03-04 | 2023-02-28 | 台达电子企业管理（上海）有限公司 | Magnetic element module and vehicle-mounted charger |
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Application publication date: 20191101 |