CN207382615U - A kind of heat transfer structure - Google Patents

Abstract

The utility model is related to a kind of heat transfer structure, including housing, around the induction coil for being located at the closure periphery and the in vivo at least one radiating subassembly of the shell is arranged on；The housing is hollow tube-shape；The housing is including being arranged on the good heat-conducting layer and the magnetic induction layer for being arranged on the good heat-conducting layer periphery that the case inside is connected with the radiating subassembly；The housing is by being arranged on the good heat-conducting layer being connected in the housing with the radiating subassembly and being arranged on the magnetic induction layer of the good heat-conducting layer periphery, form composite construction, the magnetic induction layer is enabled to generate heat when induction coil works and pass through good heat-conducting layer and transfers heat to radiating subassembly, so as to solve the problems, such as that the housing easily gets rusty, and improve heat transfer efficiency.

Description

A kind of heat transfer structure

Technical field

The utility model is related to electromagnetic heating field, more specifically to a kind of heat transfer structure.

Background technology

At present, the electromagnetic heating devices such as baking, dry are largely using hollow housing made of common iron, and will carry Radial radiating fin is soldered in the housing and is made.Existing electromagnetic heating device has the following problems：

1st, welded using carbon steel, although improving electromagnetic heating efficiency, got rusty easily, heat conduction efficiency drops after getting rusty Low, heat loss increases；

2nd, directly it is welded in housing using flat radiating fin, radiating fin only has plate with the in vivo contact area of shell Thickness is multiplied by height and plus the area of welding bead；In view of welding quality, the contact gap containing radiating fin and housing, welding gas The factors such as hole, welding rod material, the heat that radiation fin is generated and communicated to by housing sensing substantially reduce, and are dried so as to reduce electromagnetism Roasting electric heating conversion ratio；

If the 3rd, using moulding process (non-solder form), then shaping is related to that die sinking cost is excessively high, and manufacture efficiency is low, no It is suitble to volume production.

Utility model content

The technical problems to be solved in the utility model is, provide one kind can solve heat conduction efficiency is low, transmission efficiency is low, The heat transfer structure of the drawbacks such as of high cost.

Technical solution is used by the utility model solves its technical problem：Construct a kind of heat transfer structure, including housing, Around the induction coil for being located at the closure periphery and it is arranged on the in vivo at least one radiating subassembly of the shell；The housing is Hollow tube-shape；The housing is including being arranged on the good heat-conducting layer and be arranged on that the case inside is connected with the radiating subassembly The magnetic induction layer of the good heat-conducting layer periphery.

Preferably, at least one radiating subassembly includes being fixed on the case inside wall and extend to center of circle direction Several radiating fins.

Preferably, at least one radiating subassembly further includes the retainer plate of fixed several radiating fins；It is if described Dry radiating fin is uniformly arranged in the housing and one end is connected with the retainer plate, and the other end is fixed with the good heat-conducting layer Connection.

Preferably, the material of the good heat-conducting layer is aluminum or aluminum alloy；The material of the magnetic induction layer is iron or stainless steel； The material of the radiating fin is aluminum or aluminum alloy.

Preferably, the radiating fin include fin body and be connected with the fin body and with the fin body The weld part of angle is formed, the weld part is circumferentially disposed along the good heat-conducting layer and is welded with the good heat-conducting layer.

Preferably, the radiating fin is L-shaped；The angle is fillet；

The weld part is equipped with several through holes for plug welding.

Preferably, at least one radiating subassembly includes the first radiating subassembly and the second radiating subassembly；Described first dissipates Hot component and the second radiating subassembly stagger setting are in the housing.

Preferably, the radiating fin quantity of first radiating subassembly and the radiating fin quantity of second radiating subassembly The radiating fin of of substantially equal and described first radiating subassembly mutually staggers setting with the radiating fin of second radiating subassembly.

Preferably, the induction coil is around being located in the outside wall surface of the magnetic induction layer；The induction coil and the magnetic Heat-preservation cotton is equipped between inductive layer.

Preferably, the outside wall surface of the magnetic induction layer is equipped with several support ears；Several support ears are along the magnetic strength The outside wall surface for answering layer is circumferentially disposed.

Implement the heat transfer structure of the utility model, have the advantages that：The heat transfer structure is by being arranged with sensing Coil and at least one radiating subassembly is set in the housing for hollow tube-shape so that the housing can work in the induction coil When generate heat and transfer heat to radiating subassembly.The housing by be arranged in the housing be connected with the radiating subassembly it is good Heat-conducting layer and the magnetic induction layer for being arranged on the good heat-conducting layer periphery, formed composite construction so that the magnetic induction layer can Heat is generated when induction coil works and passes through good heat-conducting layer and transfers heat to radiating subassembly, it is easily raw so as to solve the housing The problem of rust, and improve heat transfer efficiency.

Description of the drawings

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：

Fig. 1 is the structure diagram of the utility model heat transfer structure,

Fig. 2 is the partial structurtes enlarged drawing of the utility model heat transfer structure.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, it is detailed now to compare attached drawing Illustrate specific embodiment of the present utility model.

Fig. 1 and Fig. 2 shows a preferred embodiment of the utility model heat transfer structure.

The heat transfer structure can be used for toasting, dry, the production and processings field such as aging, specifically, can be widely used in cigarette Leaf baking, food baking, cereal crops and agricultural and sideline product drying, medicinal material drying, automobile component and electronic product high temperature ageing Test etc., by using the housing of composite construction, so as to avoid because housing gets rusty heat conduction efficiency being caused to reduce, heat loss increases It is more, so as to improve heat transfer efficiency, and reduce production cost.

As shown in Figure 1, the heat transfer structure, including housing 11, around the induction coil 13 for being located at 11 periphery of housing and set Put at least one radiating subassembly 12 in the housing 11.The housing 11 can generate local tiny when induction coil 13 works Turbine and make itself internal resistance generate heat so as to fulfill electromagnetism hot-cast socket.At least one radiating subassembly 12 can be by the housing 11 Heat distributes.The induction coil 13 can generate the alternating magnetic field of high frequency at work, and should by high frequency magnetic field cutting Housing 11 to generate sensing electric current on the housing 11, and then makes the housing 11 generate heat.

As shown in Figures 1 and 2, which can be to pass through same hollow cylindrical or hollow square tube shape, in this implementation In example, it is preferable that the housing 11 is hollow cylindrical.The housing 11 can be lamination layer structure, including being arranged on the housing The good heat-conducting layer 111 and be arranged on the peripheral magnetic induction layer of the good heat-conducting layer 111 that 11 insides are connected with the radiating subassembly 12 112.The good heat-conducting layer 111 can play the role of heat conduction, which can pass through electromagnetic induction heat production heat.

The good heat-conducting layer 111 is made of aluminium or aluminium alloy, can be rapidly by heat with good heat conductivility Amount passes to radiating subassembly, so as to improve the heat transfer efficiency of the housing 111, in addition using good heat conduction made of aluminium or aluminium alloy Layer 111 is because aluminum or aluminum alloy surface easily produces oxide-film so that the housing 11 is not easy to cause heat conduction efficiency because of getting rusty It reduces, heat loss increases.

The magnetic induction layer 112 is made of irony or stainless steel, then the magnetic induction layer 112 has magnetic conductivity, energy It is enough to generate heat to generate heat by the internal resistance of itself when induction coil 13 works and generates induced field cutting housing 11, and will Heat quickly passes to good heat-conducting layer 111.

At least one radiating subassembly 12 includes being fixed on 11 madial wall of housing and extends to center of circle direction several Radiating fin 121.Several radiating fins 121 are uniformly arranged on the good heat-conducting layer 111, and the material of the radiating fin 121 is Aluminum or aluminum alloy, it is identical with the material of the good heat-conducting layer 111, can not only it improve radiating efficiency but also convenient for being led with the good of the housing 11 Thermosphere 111 is welded.

Further, the radiating fin 121 include fin body 1211 and be connected with the fin body 1211 and with this Fin body 1211 forms the weld part 1212 of angle, and the weld part 1212 is circumferentially disposed and good with this along the good heat-conducting layer 111 Heat-conducting layer 111 welds.In the present embodiment, which can be L-shaped, is designed by using L-type structure, Ke Yi great Increase its contact area with housing 11 greatly, so as to improve heat transference efficiency.The fin body 1211 and the weld part 1212 it Between angle be fillet, so as to eliminate the retardance of heat concentrate, improve heat transference efficiency.The weld part 1212 is equipped with several For plug welding through hole 1213, which can facilitate is soldered to good heat-conducting layer 111 by the weld part 1212.

In the present embodiment, which further includes the retainer plate for fixing several radiating fins 121 122；The diameter of the retainer plate 122 is less than the diameter of the housing 11, and the material of the retainer plate 122 is aluminum or aluminum alloy, is convenient for The installation of the radiating fin 121.Several radiating fins 121 are uniformly arranged in the housing 11 and one end and the retainer plate 122 Connection, the other end are fixedly connected with the good heat-conducting layer 111.The retainer plate 122 can play in housing 11 and fix the radiating fin 121 effect prevents the radiating fin 121 from deforming and avoiding exhaust blower or exhaust fan work because being arranged on around heat transfer structure When making generate at a high speed by air cause the radiating fin 121 generate vibrations.

At least one radiating subassembly 12 includes one, two or more radiating subassemblies, and in the present embodiment, this is at least One radiating subassembly 12 includes the first radiating subassembly and the second radiating subassembly；First radiating subassembly and second radiating subassembly are wrong It opens and is arranged in the housing 11, the radiating fin quantity of first radiating subassembly and the radiating fin quantity of second radiating subassembly The radiating fin of of substantially equal and first radiating subassembly radiating fin and second radiating subassembly mutually staggers setting, then should Radiating fin is respectively uniformly distributed about 121 and the certain angle that staggers so that is not reducing the feelings of 121 quantity of cross section radiating fin Under condition, the distance between radiating fin is increased, in order to weld.

Heat safe multiply enameled wire may be employed in the induction coil 13 or high temperature bare copper wire is made, around being located at the housing In the outside wall surface of 11 magnetic induction layer 112, and it is uniformly arranged along the outside wall surface of the magnetic induction layer 112, to ensure the housing 11 Consistent heat generation.Heat-preservation cotton is equipped between the induction coil 13 and the magnetic induction layer 112, is conducted after being heated to avoid the housing 11 Heat damages induction coil 13, so as to improve the service life of the induction coil 13.

The outside wall surface of the magnetic induction layer 112 is equipped with several support ears 14, and its outside wall surface week along the magnetic induction layer 112 To setting, then the quantity of the support ear 14 can make one, two, three or multiple.It in this embodiment, it is preferred that should The quantity of support ear 14 is three, and these three support ears 14 are circumferentially disposed along the outside wall surface of the magnetic induction layer 112.The support ear 14 can be used for fixing entire heat transfer structure.

It should be understood that above example only expresses the preferred embodiment of the utility model, description is more specific With it is detailed, but it should not be interpreted as limiting the scope of the present invention；It should be pointed out that for this field Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely Combination, various modifications and improvements can be made, these belong to the scope of protection of the utility model；Therefore, it is all with this practicality The equivalents and modification that new right is done should all belong to the covering scope of the utility model claims.

Claims (10)

1. a kind of heat transfer structure, which is characterized in that including housing (11), around the induction coil for being located at the housing (11) periphery (13) and at least one radiating subassembly (12) for being arranged in the housing (11)；The housing (11) is hollow tube-shape；Institute State housing (11) include being arranged on the good heat-conducting layer (111) that is connected with the radiating subassembly (12) on the inside of the housing (11) and It is arranged on the magnetic induction layer (112) of good heat-conducting layer (111) periphery.

2. heat transfer structure according to claim 1, which is characterized in that at least one radiating subassembly (12) includes fixing Several radiating fins (121) extended on the housing (11) madial wall and to center of circle direction.

3. heat transfer structure according to claim 2, which is characterized in that at least one radiating subassembly (12) further includes solid The retainer plate (122) of fixed several radiating fins (121)；Several radiating fins (121) are uniformly arranged on the housing (11) in and one end is connected with the retainer plate (122), and the other end is fixedly connected with the good heat-conducting layer (111).

4. heat transfer structure according to claim 2, which is characterized in that the material of the good heat-conducting layer (111) is aluminium or aluminium Alloy；The material of the magnetic induction layer (112) is iron or stainless steel；The material of the radiating fin (121) is aluminum or aluminum alloy.

5. heat transfer structure according to claim 2, which is characterized in that the radiating fin (121) includes fin body (1211) and with the fin body (1211) it is connected and the weld part of angle is formed with the fin body (1211) (1212), the weld part (1212) is circumferentially disposed along the good heat-conducting layer (111) and is welded with the good heat-conducting layer (111).

6. heat transfer structure according to claim 5, which is characterized in that the radiating fin (121) is L-shaped；The angle For fillet；

The weld part (1212) is equipped with several through holes (1213) for plug welding.

7. heat transfer structure according to claim 2, which is characterized in that at least one radiating subassembly (12) includes first Radiating subassembly and the second radiating subassembly；First radiating subassembly and the second radiating subassembly stagger setting are in the housing (11) in.

8. heat transfer structure according to claim 7, which is characterized in that the radiating fin quantity of first radiating subassembly with The radiating fin quantity of second radiating subassembly is of substantially equal and the radiating fin and described second of first radiating subassembly The radiating fin of radiating subassembly mutually staggers setting.

9. heat transfer structure according to claim 1, which is characterized in that the induction coil (13) is around being located at the magnetic induction In the outside wall surface of layer (112)；Heat-preservation cotton is equipped between the induction coil (13) and the magnetic induction layer (112).

10. heat transfer structure according to claim 1, which is characterized in that the outside wall surface of the magnetic induction layer (112) is equipped with Several support ears (14)；Several support ears (14) are circumferentially disposed along the outside wall surface of the magnetic induction layer (112).