CN202546853U - Quick-heat-dissipation electromagnetic oven - Google Patents

Quick-heat-dissipation electromagnetic oven Download PDF

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Publication number
CN202546853U
CN202546853U CN2012200992342U CN201220099234U CN202546853U CN 202546853 U CN202546853 U CN 202546853U CN 2012200992342 U CN2012200992342 U CN 2012200992342U CN 201220099234 U CN201220099234 U CN 201220099234U CN 202546853 U CN202546853 U CN 202546853U
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China
Prior art keywords
igbt
heat
electromagnetic oven
fin
quick
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Active
Application number
CN2012200992342U
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Chinese (zh)
Inventor
朱泽春
谢浙锋
许立特
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Joyoung Co Ltd
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Joyoung Co Ltd
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Priority to CN2012200992342U priority Critical patent/CN202546853U/en
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Abstract

The utility model discloses a quick-heat-dissipation electromagnetic oven capable of effectively solving the problem of slow heat dissipation, high working temperature and influence on element service life in the existing IGBT (insulated gate bipolar transistor) element. The electromagnetic oven comprises a shell, a circuit board fixed in the shell, an IGBT element electrically connected with the circuit board, and IGBT heat dissipation fins, wherein the IGBT element is arranged on the IGBT heat dissipation fins; electric-insulating heat-conducting fins are arranged between the IGBT element and the IGBT heat dissipation fins; and metal heat-conducting fins capable of quickly transferring heat are arranged between the IGBT element and the IGBT heat dissipation fins. Heat generated by the IGBT element is quickly absorbed by the heat-conducting fins, thereby greatly lowering the working temperature of the IGBT element and prolonging the service life.

Description

A kind of electromagnetic oven of quick heat radiating
Technical field
The utility model relates to a kind of electromagnetic oven of quick heat radiating.
Background technology
The IGBT element is an insulated gate bipolar transistor, is a kind of power component commonly used in the electromagnetic oven.Present IGBT element radiating mode is with separating with a little insulating heat-conductive sheet between IGBT element and the radiator; The heat that sends during the work of IGBT element is delivered on the radiator through the insulating heat-conductive sheet; Because the thermal conductivity factor of insulating heat-conductive sheet is limited; Thermal conductivity factor more than metal is low, so the heat that causes the work of IGBT element the time to come out like this can not be sponged timely and cause the intensification of IGBT element itself very fast, operating temperature is higher; Influence the service life of element, even caused the generation of aircraft bombing.
Summary of the invention
The purpose of the utility model is to provide a kind of electromagnetic oven of quick heat radiating, can solve effectively that existing IGBT element radiating is slow, operating temperature is high, influences the element problem in service life.
In order to solve the problems of the technologies described above; The utility model is realized through following technical scheme: a kind of electromagnetic oven of quick heat radiating; Comprise casing, be fixed on the circuit board in the casing, the IGBT element that is electrically connected with circuit board, IGBT fin; Said IGBT element is arranged on the IGBT fin, is provided with the insulating heat-conductive sheet between said IGBT element and the IGBT fin, is provided with the metal conducting strip of flash heat transfer between said IGBT element and the insulating heat-conductive sheet.
Preferably, said metal conducting strip is arranged on the below of IGBT element, and said metal conducting strip is arranged on the top of insulating heat-conductive sheet; Be convenient to the heat conduction.
Preferably, said IGBT fin and circuit board are fixed on bottom of shell side by side, and perhaps said IGBT fin is fixed on the circuit board; The convenient arrangement arranged, makes full use of the interior space.
Preferably, said IGBT element is connected electrically on the circuit board through pin; The IGBT element is electrically connected with the realization of circuit board ability secure.
Preferably, also comprise external radiator, be connected through heat-conductive assembly between said external radiator and the IGBT fin; Auxiliary heat dissipation can distribute the heat of IGBT fin as early as possible.
Preferably, said heat-conductive assembly comprises kinetic pump, water receiver, is provided with some limbers in the said IGBT fin, and said external radiator, kinetic pump, water receiver, IGBT fin join end to end successively and form the water cycle cooling system; Utilize water heat conduction that the heat of IGBT fin is derived relative low price, good heat dissipation effect.
Preferably, the limbers in the said IGBT fin evenly is provided with; The heat of IGBT fin can evenly conduct.
Preferably, the cross section of said limbers is a rectangle or circular; Be convenient to processing.
Optional, said heat-conductive assembly is a heat pipe, is connected through heat pipe between said external radiator and the IGBT fin; Use heat pipe can effectively reduce the difficulty of integral layout, the heat pipe conduction efficiency is high simultaneously, and is safe and reliable.
Preferably, said IGBT element is fixed on the metal conducting strip through screw; Easy installation and removal is connected firmly.
Compared with prior art; The utility model has the advantages that: the heat of IGBT element radiating sheet is absorbed by metal conducting strip rapidly, has reduced the operating temperature of IGBT element widely, has prolonged service life; Because the rate of heat transfer of metal conducting strip is higher, make heat transfer efficiency promote simultaneously; The heat of metal conducting strip is transmitted on the IGBT fin through the insulating heat-conductive sheet in addition; So not only make and be transmitted to the IGBT fin effectively by the heat after the metal conducting strip absorption; And make the IGBT fin not charged, and can be directly exposed to the casing outside, improve radiating efficiency.
Description of drawings
Fig. 1 is the structural representation of embodiment one of the electromagnetic oven of a kind of quick heat radiating of the utility model;
Fig. 2 is the cutaway view of A-A among Fig. 1;
Fig. 3 is a B place partial enlarged drawing among Fig. 2;
Fig. 4 is the structural representation of embodiment two of the electromagnetic oven of a kind of quick heat radiating of the utility model;
Fig. 5 is the cutaway view of C-C among Fig. 4;
Fig. 6 is a D place partial enlarged drawing among Fig. 5;
Fig. 7 is the structural representation of embodiment three of the electromagnetic oven of a kind of quick heat radiating of the utility model.
The specific embodiment
Embodiment one:
Like Fig. 1 to Fig. 3 is the embodiment one of the electromagnetic oven of a kind of quick heat radiating of the utility model; A kind of electromagnetic oven of quick heat radiating; Comprise casing 9, be fixed on circuit board 10 in the casing 9, be connected electrically in IGBT element 1, IGBT fin 3 on the circuit board 10 through pin; Said IGBT element 1 is arranged on the IGBT fin 3, is provided with insulating heat-conductive sheet 2 between said IGBT element 1 and the IGBT fin 3, is provided with the metal conducting strip 4 of flash heat transfer between said IGBT element 1 and the insulating heat-conductive sheet 2; Said metal conducting strip 4 is arranged on the below of IGBT element 1; Said metal conducting strip 4 is arranged on the top of insulating heat-conductive sheet 2, and said IGBT element 1 is fixed on the metal conducting strip 4 through screw 8, and said IGBT fin 3 is fixed on casing 9 bottoms side by side with circuit board 10.
Above-mentioned IGBT fin 3 also can directly be fixed on the circuit board 10.The heat that IGBT element 1 produces is absorbed by metal conducting strip 4 rapidly; Reduced the operating temperature of IGBT element 1 widely; Prolonged service life, the heat of metal conducting strip 4 is transmitted on the IGBT fin 3 through insulating heat-conductive sheet 2 then, so not only makes to be transmitted to IGBT fin 3 effectively by the heat after metal conducting strip 4 absorptions; And make IGBT fin 3 not charged, can be directly exposed to the casing outside.
Embodiment two:
Extremely shown in Figure 6 like Fig. 4 is the embodiment two of the electromagnetic oven of a kind of quick heat radiating of the utility model; On the basis of embodiment one; Also comprise external radiator 5, be connected through heat-conductive assembly between said external radiator 5 and the IGBT fin 3 that said heat-conductive assembly comprises kinetic pump 6, water receiver 7; Be provided with some limbers 31 in the said IGBT fin 3; Said external radiator 5, kinetic pump 6, water receiver 7, IGBT fin 3 join end to end successively and form the water cycle cooling system, and the limbers 31 in the said IGBT fin 3 evenly are provided with, and the cross section of said limbers 31 is a rectangle.
The cross section of said limbers 31 also can be circle.This embodiment not only has the advantage of embodiment one; Heat on the IGBT fin 3 is brought on the external radiator 5 through current and dispels the heat simultaneously; Heat after not only making metal conducting strip 4 absorb is transmitted on the IGBT fin 3 effectively, and makes IGBT fin 3 not charged, and current are not charged yet; External radiator is not charged yet, just can external radiator be arranged on the outside of casing.
Embodiment three:
Be illustrated in figure 7 as the embodiment three of the electromagnetic oven of a kind of quick heat radiating of the utility model, on the basis of embodiment one, also comprise external radiator 5, be connected through heat pipe 11 between said external radiator 5 and the IGBT fin 3.
Principle is identical with embodiment two, and is more safe and reliable with respect to the heat-conductive assembly of embodiment two, and heat pipe for thermal conductivity need not make water; Do not have the danger of leaking; Need not replenish the water source yet, not have kinetic pump can reduce operating noise, not have water receiver can effectively reduce overall volume.
The above is merely the specific embodiment of the utility model; But the technical characterictic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.

Claims (10)

1. the electromagnetic oven of a quick heat radiating; Comprise casing (9), be fixed on the circuit board (10) in the casing (9), the IGBT element (1) that is electrically connected with circuit board (10), IGBT fin (3); Said IGBT element (1) is arranged on the IGBT fin (3); Be provided with insulating heat-conductive sheet (2) between said IGBT element (1) and the IGBT fin (3), it is characterized in that: the metal conducting strip (4) that is provided with flash heat transfer between said IGBT element (1) and the insulating heat-conductive sheet (2).
2. the electromagnetic oven of a kind of quick heat radiating according to claim 1, it is characterized in that: said metal conducting strip (4) is arranged on the below of IGBT element (1), and said metal conducting strip (4) is arranged on the top of insulating heat-conductive sheet (2).
3. the electromagnetic oven of a kind of quick heat radiating according to claim 1 is characterized in that: said IGBT fin (3) is fixed on casing (9) bottom side by side with circuit board (10), and perhaps said IGBT fin (3) is fixed on the circuit board (10).
4. the electromagnetic oven of a kind of quick heat radiating according to claim 3, it is characterized in that: said IGBT element (1) is connected electrically on the circuit board (10) through pin.
5. the electromagnetic oven of a kind of quick heat radiating according to claim 1 is characterized in that: also comprise external radiator (5), be connected through heat-conductive assembly between said external radiator (5) and the IGBT fin (3).
6. the electromagnetic oven of a kind of quick heat radiating according to claim 5; It is characterized in that: said heat-conductive assembly comprises kinetic pump (6), water receiver (7); Be provided with some limbers (31) in the said IGBT fin (3), said external radiator (5), kinetic pump (6), water receiver (7), IGBT fin (3) join end to end successively and form the water cycle cooling system.
7. the electromagnetic oven of a kind of quick heat radiating according to claim 6 is characterized in that: the even setting in the limbers (31) in the said IGBT fin (3).
8. the electromagnetic oven of a kind of quick heat radiating according to claim 7 is characterized in that: the cross section of said limbers (31) is a rectangle or circular.
9. the electromagnetic oven of a kind of quick heat radiating according to claim 5, it is characterized in that: said heat-conductive assembly is heat pipe (11), is connected through heat pipe (11) between said external radiator (5) and the IGBT fin (3).
10. according to the electromagnetic oven of each described a kind of quick heat radiating in the claim 1 to 9, it is characterized in that: said IGBT element (1) is fixed on the metal conducting strip (4) through screw (8).
CN2012200992342U 2012-03-16 2012-03-16 Quick-heat-dissipation electromagnetic oven Active CN202546853U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200992342U CN202546853U (en) 2012-03-16 2012-03-16 Quick-heat-dissipation electromagnetic oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200992342U CN202546853U (en) 2012-03-16 2012-03-16 Quick-heat-dissipation electromagnetic oven

Publications (1)

Publication Number Publication Date
CN202546853U true CN202546853U (en) 2012-11-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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CN (1) CN202546853U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604142A (en) * 2013-11-18 2014-02-26 美的集团股份有限公司 Induction cooker
CN103604145A (en) * 2013-11-18 2014-02-26 美的集团股份有限公司 Induction cooker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103604142A (en) * 2013-11-18 2014-02-26 美的集团股份有限公司 Induction cooker
CN103604145A (en) * 2013-11-18 2014-02-26 美的集团股份有限公司 Induction cooker
CN103604142B (en) * 2013-11-18 2016-06-29 美的集团股份有限公司 Electromagnetic oven
CN103604145B (en) * 2013-11-18 2016-07-06 美的集团股份有限公司 Electromagnetic oven

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C14 Grant of patent or utility model
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 250118 999 Mei Li Road, Huaiyin District, Ji'nan, Shandong

Patentee after: Joyoung Company Limited

Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118

Patentee before: Joyoung Company Limited