CN209285154U - A kind of oven of good heat dissipation effect - Google Patents

Abstract

The utility model relates to a kind of ovens of good heat dissipation effect, including shell, liner and control chamber, control chamber is located at liner side, wiring board is equipped in control chamber, liner includes liner rear wall and liner annular wall, and liner rear wall and liner annular wall are enclosed cooking cavity, heat dissipation cavity is equipped between housing rear and liner rear wall, heat dissipation cavity is led to control chamber, and heat release hole is opened up on housing rear, and the heat in control chamber after heat dissipation cavity and heat release hole by being discharged.The heat dissipation cavity led to control chamber is formed between liner rear wall and housing rear, and heat release hole is opened up on housing rear, enable heat in control chamber and moisture passes sequentially through heat dissipation cavity and heat release hole is delivered to free surrounding space, thus the temperature and humidity in control chamber is reduced, ensure that the wiring board in control chamber operates normally, prevent the failures such as short circuit, the service life of extension wire plate occur because temperature or humidity is excessively high.

Description

A kind of oven of good heat dissipation effect

Technical field

The utility model relates to field of kitchen electric appliance, and in particular to a kind of oven of good heat dissipation effect.

Background technique

In modern kitchen, oven is widely used by people.Existing oven includes shell, liner and control chamber, control Chamber processed is located at liner side, is equipped with wiring board in control chamber, and liner includes liner rear wall and liner annular wall, liner rear wall and interior Gallbladder annular wall is enclosed cooking cavity, and when in use, the heat that heating component generates is baked food materials.Due to heating component The heat of generation can leak in control chamber, so that control cavity temperature rises, when steaming especially with steam, in control chamber Humidity can also rise, cause wiring board can not work normally, influence wiring board service life.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a kind of oven of good heat dissipation effect, by liner Heat dissipation cavity is set between rear wall and housing rear, enables heat and moisture in control chamber to pass through the timely outlet of heat dissipation cavity, effectively drops The operating ambient temperature and humidity of low wiring board, prolong the service life.

The utility model is accomplished by the following way: a kind of oven of good heat dissipation effect, including shell and is set to described Liner and control chamber in shell, the control chamber are located at liner side, are equipped with wiring board, the inner bag in the control chamber Liner rear wall and the liner annular wall around the setting of liner rear wall periphery are included, the liner rear wall and liner annular wall enclose shape At cooking cavity, heat dissipation cavity is equipped between the housing rear and the liner rear wall, the heat dissipation cavity is led to the control chamber, institute It states and opens up heat release hole on housing rear, the heat in the control chamber is discharged into extraneous sky after passing sequentially through heat dissipation cavity and heat release hole Between.The heat dissipation cavity led to control chamber is formed between liner rear wall and housing rear, and heat release hole is opened up on housing rear, so that Heat and moisture in control chamber can pass sequentially through heat dissipation cavity and heat release hole is delivered to free surrounding space, thus reduce in control chamber Temperature and humidity, it is ensured that the wiring board in control chamber operates normally, and prevents the failures such as short circuit occur because temperature or humidity is excessively high, The service life of extension wire plate.Heat release hole is provided on housing rear, effective avoiding user, liner rear wall and housing rear It is separately positioned each other, it effectively prevent shell to occur the case where temperature raising because directly contacting with liner, it is ensured that user will not There is the case where scald because accidentally touching shell, guarantees using safe.

Preferably, the housing rear is equipped with the first convex closure extended backward, the liner rear wall is equipped with backward Second convex closure of extension, first convex closure and the second convex closure are laminated to form the heat dissipation cavity, and the heat release hole is provided with On first convex closure.Recess forms the first convex closure backward in the middle part of housing rear, is recessed backward in the middle part of liner rear wall and forms second Convex closure, when the first convex closure and the second convex closure overlapping in place after, liner rear wall and housing rear are contradicted affixed by periphery, and are passed through Middle part is enclosed the heat dissipation cavity, and housing rear covers and protects liner rear wall, has both ensured that liner rear wall and housing rear connect It connects securely, also assures safety and heat dissipation effect.

Preferably, the depth of first convex closure is greater than the depth of second convex closure, the two depth difference is A, 10mm ≤A≤25mm.Increase liner volume by the second convex closure of setting, the first convex closure plays the role of wrapping up the second convex closure, installation When, the second convex closure is inserted back into the first convex closure, and the depth by the way that differentiation is arranged to form heat dissipation cavity to be spaced.As 10 mm of A < When, the thinner thickness of heat dissipation cavity, heat dissipation cavity area of section is smaller, both can because distance between liner rear wall and housing rear is smaller and It is easy transmitting heat, the case where causing housing rear temperature to increase, be easy to appear scald, also because heat dissipation cavity interior air-flow flow is too small And heat dissipation effect is influenced, as A 25 mm of >, it is excessive to will lead to entire oven volume.

Preferably, the water source equipped with water tank and the steam generator that is connected to water tank in the control chamber, in water tank Steam is converted by steam generator and is inputted in liner.Steam generator receives the water source from water tank, and water source is added Heat inputs in liner at after steam, cooks to the food heating in liner, keeps moisture in food materials, provides multiplicity for user Cooking method.Steam generator is arranged in control chamber, the heat that steam generator distributes can be outer in time by heat dissipation cavity Row, it is ensured that using safe.

Preferably, the liner annular wall is connected by strip panel-bending and formed, pass through between the lateral margin of the plate The connection of wiredrawn edge sealing structure, the wiredrawn edge structure include passing through the crimping that is reversely bent to form by lateral margin, the crimping with it is corresponding Lateral margin is enclosed socket reversed each other, and after being installed in place, the crimping is inserted into corresponding socket, so as to insert each other between lateral margin Set snapping.Strip plate is bent to form the annular wall of liner, reduces the junction for needing to process by reducing number of components, in turn Shorten process time, improves production efficiency.The lateral margin of plate passes through crimping between adjacent plate lateral margin by being bent to form socket Insertion socket simultaneously clamps snapping, realizes and is tightly connected between the lateral margin of plate.

Preferably, the depth of the socket is L, 3mm≤L≤15mm, both ensured to have between socket and crimping biggish Contact area promotes connection sealing, also effectively controls crimping both socket sizes, reduces raw material dosage.As L < 3mm, socket It is shallower, so that the contact area between socket and crimping is smaller, influence the bonding strength and sealing performance of wiredrawn edge interface；As L > When 15mm, the promotion of socket depth is unobvious to the improvement of bonding strength and sealing performance, and plate lateral margin is needed to bend More regions form crimping, increase raw material dosage.

Preferably, after the wiredrawn edge structure completes assembly, the wiredrawn edge structure with a thickness of H, 3mm≤H≤7mm.Volume Side be inserted into it is affixed by clamping after corresponding socket, by the way that thickness parameter H is arranged, with this determine crimping thickness and with it is corresponding Clamping degree between socket guarantees bonding strength and sealing performance, also prevents the case where excessively clamping and damage crimping or socket hair It is raw.It is smaller to the clamping force of crimping and socket as H > 7mm, so that there are gaps between crimping and socket, influence bonding strength And sealing performance, it is easy to appear the case where crimping is detached from from socket, in addition, blocked up crimping also adds raw material dosage, is increased Production cost；As H < 3mm, crimping and socket can be excessively thin because of itself and failure by rupture occur due to clamping the reasons such as excessively, Influence bonding strength and sealing performance.

Preferably, the liner annular wall is an integral structure, the plate is by being bent to form the top of the liner Wall, side wall and bottom wall, the two sides of the plate are intermarginal affixed by wiredrawn edge sealing structure.The plate of strip passes through curved three times Folding forms the roof, side wall and bottom wall of liner, and the two sides of plate are intermarginal affixed by wiredrawn edge sealing structure, so as to form side The liner annular wall of frame-shaped improves production efficiency by reducing number of components and wiredrawn edge number of structures.

Preferably, the liner annular wall is split type structure, is at least connected and formed by two plates, the plate is matched The roof, side wall and bottom wall for forming the liner are closed, the respective side of adjacent panels is intermarginal affixed by wiredrawn edge sealing structure.Plate Number of packages amount is not more than three pieces, and at least one block of plate passes through two companies being bent to form in the roof, side wall and bottom wall of liner Continuous wall, the plate cooperatively form the roof, side wall and bottom wall of liner, and the respective side of two plates intermarginal passes through wiredrawn edge structure It seals affixed, so as to form the liner annular wall of box shape, improves life by reducing number of components and wiredrawn edge number of structures Efficiency is produced, also facilitates processing by reducing the bending quantity on monolithic plate.

Preferably, the rear outward bending of the liner annular wall and form cricoid affixed side, the affixed side with The liner rear wall sealing paste merga pass fastener is affixed.Affixed side is annular in shape, and is located at the outside of liner annular wall rear, When installation, liner annular wall is solidly connected on the periphery of liner rear wall by the fitting of affixed side, and placed by fastener it is affixed, really The sealing performance for protecting liner rear wall and liner annular wall junction prevents heat from leaking and influences the heating efficiency and use of oven Safety.

Preferably, being connected by fillet between each wall surface of the liner annular wall.The top of panel-bending formation liner Wall, side wall and bottom wall are disposed as fillet between adjacent wall surface, both facilitate bending process, are also convenient for cleaning and accumulate in corner Swill.

The utility model has the beneficial effects that the heat dissipation cavity led to control chamber is formed between liner rear wall and housing rear, And heat release hole is opened up on housing rear, enable heat in control chamber and moisture passes sequentially through heat dissipation cavity and heat release hole is delivered to Thus free surrounding space reduces the temperature and humidity in control chamber, it is ensured that the wiring board in control chamber operates normally, and prevents because of temperature Or humidity is excessively high and the failures such as short circuit occurs, the service life of extension wire plate.

Detailed description of the invention

Fig. 1 is the exploded structural schematic diagram of oven described in embodiment one；

Fig. 2 is the decomposition texture schematic diagram of oven described in embodiment one；

Fig. 3 is liner rear wall and housing rear assembling structure schematic diagram described in embodiment one；

Fig. 4 is the schematic cross-sectional view of wiredrawn edge structure described in embodiment one；

Fig. 5 is liner annular wall decomposition texture schematic diagram described in embodiment two；

In figure: 1, shell, 11, steam generator, 12, heat dissipation cavity, 13, housing rear, 131, heat release hole, 132, first Convex closure, 14, wiring board, 15, control chamber, 16, shell bottom wall, 17, housing front wall, 171, connection side, 18, shell cover wall, 2, interior Gallbladder, 21, liner rear wall, the 211, second convex closure, 22, liner annular wall, 221, affixed side, 222, fillet, 3, wiredrawn edge structure, 31, Crimping, 32, socket.

Specific embodiment

Make further with substantive distinguishing features of the specific embodiment to the utility model with reference to the accompanying drawings of the specification It is bright.

Embodiment one:

The present embodiment provides a kind of ovens of good heat dissipation effect.

Oven as shown in Figures 1 to 4, liner 2 and control chamber 15 by shell 1 and in the shell 1 form, The control chamber 15 is located at 2 side of liner, and wiring board 14 is equipped in the control chamber 15, and the liner 2 includes liner rear wall 21 And the liner annular wall 22 around the setting of 21 periphery of liner rear wall, the liner rear wall 21 and liner annular wall 22 are enclosed Cooking cavity is equipped with heat dissipation cavity 12, the heat dissipation cavity 12 and the control chamber between the housing rear 13 and the liner rear wall 21 15 lead to, and heat release hole 131 is opened up on the housing rear 13, and the heat in the control chamber 15 passes sequentially through heat dissipation cavity 12 and dissipates Free surrounding space is discharged into after hot hole 131.

In the present embodiment, the shell 1 include shell bottom wall 16, set on 16 rear of shell bottom wall housing rear 13, Cooking cavity, the shell are equipped in the shell cover wall 18 of the up-front housing front wall 17 of shell bottom wall 16 and U-shaped, liner 2 Antetheca 17 opens up opening, and open edge is bent to form connection side 171 backward, connection side be bonded with cooking cavity accent edge it is affixed, So that open lead to cooking cavity.The open outside is covered with the door panel assemblies that folding may be reversed, and the door panel assemblies include Glass door panel and the door folder for being fixed in glass door panel bottom, the bottom of the top clamping glass door panel of door folder are simultaneously solid by glue connection Fixed, glass door panel and door press from both sides wide setting, and the rectangle door panel assemblies with open outline are consequently formed, and door panel assemblies pass through The door-hinge of horizontal direction passing-through door folder is installed in rotation in opening, it is ensured that door panel assemblies can block open closed state Switch between the open state of open opening.

When in use, firstly, user overturns door panel assemblies to open state, it is open open and formed food materials pick and place it is logical Road, food materials are put into cooking cavity by opening；Later, user overturns door panel assemblies to closed state so that cooking cavity with Free surrounding space isolation；Finally, opening the heat generating component in shell 1, the heat that heat generating component generates enters cooking cavity and is transferred to Food materials surface, food materials are heated culinary art.The heat that heat generating component generates can four-way diffusion so that temperature in control chamber 15 can be with Heat generating component using the time increase and rises, wiring board 14 understand break down because running in the high temperature environment for a long time.

In the present embodiment, to solve the above-mentioned problems, it is equipped between the housing rear 13 and the liner rear wall 21 Heat dissipation cavity 12, the heat dissipation cavity 12 are led to the control chamber 15, and heat release hole 131, the control are opened up on the housing rear 13 Heat in chamber 15 processed is discharged into free surrounding space after passing sequentially through heat dissipation cavity 12 and heat release hole 131.After housing rear 13 and liner Heat dissipation cavity 12 is enclosed between wall 21,2 rear of liner that heat dissipation cavity 12 is arranged, the side of heat dissipation cavity 12 and control chamber 15 are logical Even, heat release hole 131 is opened up after formation heat dissipation cavity 12 on the housing rear 13 of cavity wall, the heat gathered in control chamber 15 can pass through It is emitted into free surrounding space after heat dissipation cavity 12 and heat release hole 131, reduces route by excluding the heat in control chamber 15 in time The operating ambient temperature of plate 14, and then ensure that wiring board 14 works normally, the service life of extension wire plate 14.

In the present embodiment, water tank is equipped in control chamber 15, wiring board 14 is located at water tank side wall, and water tank side wall is additionally provided with steaming Vapour generator 11, the water source in water tank are converted into steam and are inputted in liner 2 by steam generator 11, are provided for culinary art food materials Heat

In the present embodiment, liner rear wall 21 forms the anterior cavity wall of heat dissipation cavity 12, the 12 rear orientation projection region of heat dissipation cavity It is corresponding with the rear orientation projection region of the cooking cavity.Partial heat in cooking cavity can be dissipated outward by liner rear wall 21, by It is not in contact with each other in housing rear 13 and liner rear wall 21, heat dissipation cavity 12 plays heat-blocking action, effectively prevent on liner rear wall 21 Heat is transferred directly to housing rear 13, and then limits 13 temperature of housing rear, prevents user excessively high because of touching temperature Shell 1 and there is a situation where scald.

In the present embodiment, the housing rear 13 is arranged backwards, and when using oven, user is usually located at oven Front is operated, and heat release hole 131 is arranged far from the housing rear 13 of user, the heat distributed by liner rear wall 21 It can be dissipated outward by heat dissipation cavity 12 and heat release hole 131, temperature in heat dissipation cavity 12 is reduced with this, in the process, had higher The hot-fluid of temperature can be blowed by heat release hole 131 to the rear far from user, effectively prevent user due to contacting with hot-fluid The case where scalding, it is ensured that using safe.

The present embodiment provides a kind of specific Roasting oven structures.

As shown in Fig. 2, the housing rear 13 is equipped with the first convex closure 132 for extending backward, on the liner rear wall 21 Equipped with the second convex closure 211 extended backward, first convex closure 132 and the second convex closure 211 are laminated to form the heat dissipation cavity 12, the heat release hole 131 is provided on first convex closure 132.

In the present embodiment, the middle part of the housing rear 13 is recessed backward forms first convex closure 132, the first convex closure 132 include the first oblique side wall being arranged on the inside of 13 periphery of housing rear and the first smooth bottom surface, the liner rear wall Recess forms second convex closure 211 backward at 21 middle parts, and the second convex closure 211 includes the be arranged on the inside of 21 periphery of liner rear wall The back projection region of two oblique side walls and the second smooth bottom surface, second convex closure 211 is located at first convex closure 132 Back projection region in, heat release hole 131 is provided on the first bottom surface, and during installation, housing rear 13 covers conjunction from back to front At 2 rear of liner, second, which stretches report, is inserted into from front to back in the first convex closure 132, after completing assembly, as shown in figure 3, the first bottom surface And second be enclosed the heat dissipation cavity 12 between bottom surface, the periphery of liner rear wall 21 is fitted on the front side wall of housing rear 13, First oblique side wall is bonded with the second oblique side wall matching, and heat dissipation cavity 12 is led to towards 15 side of control chamber is reserved with control chamber 15 Channel, both ensured the leakproofness of 21 junction of housing rear 13 and liner rear wall, and also assured that heat can pass through in control chamber 15 The quick outlet of heat dissipation cavity 12 guarantees radiating efficiency.

In the present embodiment, 21 periphery of liner rear wall is bonded setting with housing rear 13, and described the first of liner rear wall 21 The depth of convex closure 132 is greater than the depth of second convex closure 211, and the depth difference between the first convex closure 132 and the second convex closure 211 is A, A=15mm, so that the heat dissipation cavity 12 with a thickness of 15mm is formed between the first bottom surface and the second bottom surface, both by increasing heat dissipation cavity 12 Thickness improves radiating efficiency, increases the distance between the first bottom surface and the second bottom surface also to reduce heat radiation efficiency, reduces by the The temperature of one bottom surface, and can effectively limit the volume of oven.

In the present embodiment, the liner 2 includes liner rear wall 21 and the liner around the setting of 21 periphery of liner rear wall Annular wall 22, liner rear wall 21 and liner annular wall 22 are split settings, are reduced under the premise of not increasing assembly difficulty each The difficulty of processing of component, effectively improves production efficiency.

In the present embodiment, the liner annular wall 22 is an integral structure, and the plate is by being bent to form in described Roof, side wall and the bottom wall of gallbladder 2, the two sides of the plate are intermarginal sealed by wiredrawn edge structure 3 it is affixed.The liner annular wall 22 are connected by the panel-bending of a piece of strip and are formed, and plate is bent to form the bottom wall, side wall and top of liner 2 along its length Four wall surfaces such as wall, and the two sides of plate it is intermarginal realized by wiredrawn edge structure 3 it is affixed, so as to form the liner annular of box shape Wall 22.In the process, plate can be bent to form the first lateral margin, the first side wall, bottom wall, second sidewall and top by four times Wall, after the completion of bending, roof forms the second lateral margin towards edge at the first side wall, and plate realizes first by wiredrawn edge connection structure Lateral margin and the second lateral margin are affixed, reduce the quantity of wiredrawn edge connection structure by reducing plate quantity, promote assembly efficiency.

In the present embodiment, it is connected by fillet 222 between each wall surface of the liner annular wall 22.Plate is being bent When, the connected structure between each wall surface is changed to fillet 222 by original right angle, and processing effect has both been improved by reducing machining accuracy Rate, moreover it is possible to eliminate cleaning dead angle, the swill of each wall joining place is accumulated in convenient for user's cleaning, is prevented because swill is long Phase is gathered and breeds bacterium, and user's health is influenced.

In the present embodiment, it is tightly connected between the lateral margin of the plate by wiredrawn edge structure 3, the wiredrawn edge structure 3 includes The crimping 31 being reversely bent to form is passed through by lateral margin, the crimping 31 is enclosed socket 32 reversed each other with corresponding lateral margin, After being installed in place, the crimping 31 is inserted into corresponding socket 32, so as to plant snapping (as shown in Figure 4) between lateral margin each other.In life When production, the edge of the first lateral margin forms the first crimping by reversely bending, and the first crimping is located above the first lateral margin and each other In parallel, the first socket backwards to the second lateral margin opening is formed between the two, and the edge of the second lateral margin forms the by reversely bending Two crimpings, the second crimping are located at below the second lateral margin and parallel each other, are formed insert backwards to the second of the first lateral margin opening between the two Mouthful.During installation, the first lateral margin is located at below the second lateral margin, so that the first crimping and the second crimping are located at the first lateral margin and second Between lateral margin, meanwhile, the first crimping is located at the opening of the second socket, and the second crimping is located at the opening of the first socket, passes through Backwards to the first lateral margin and the second lateral margin is pulled, so that the first crimping and the second crimping are inserted into corresponding second socket and first simultaneously In socket, then realized by applying vertical active force and clamped, after completing installation, the first lateral margin, the second crimping, the first crimping and Second side edge successively close-stacked from bottom to top, so that the first crimping and the second crimping are by held tight in corresponding second socket In the first socket, the bonding strength of the first lateral margin and the second lateral margin was both ensured, the two is prevented to be detached from and lead to liner annular wall 22 damaged situations occur, and also effectively improve the first lateral margin and the intermarginal connection sealing of second side, prevent in cooking cavity The case where heat leaks improves heating efficiency.

In the present embodiment, the depth of the socket 32 is L, L=10mm, and during installation, crimping 31 is fully inserted into socket 32, bonding strength and sealing performance can be improved by increasing the contact area between 32 inner sidewall of socket and crimping 31, moreover it is possible to The effectively size of control crimping 31, and then reduce raw material dosage, reduce production cost.

In the present embodiment, after the wiredrawn edge structure 3 completes assembly, the wiredrawn edge structure 3 with a thickness of H, H=5mm, it is right The vertical clamping force of socket 32 and crimping 31 proposes requirement, it is ensured that bonding strength and connection sealing between the two, opposite side The thickness of edge and crimping 31 proposes requirement, and the plate of suitable thickness is selected with this, both guarantees structural strength, also reduces Raw material dosage reduces production cost.

In the present embodiment, the rear outward bending of the liner annular wall 22 and cricoid affixed side 221 is formed, it is described Affixed side 221 and the 21 sealing paste merga pass fastener of liner rear wall are affixed.Affixed side 221 is around liner annular wall 22 Rear setting, and it is vertical each other parallel with 21 periphery of liner rear wall, during installation, firstly, affixed side 221 is fitted in from front to back On the periphery of liner rear wall 21, later, the periphery of liner rear wall 21 is fitted in from front to back on the periphery of housing rear 13, most Afterwards, to realize that affixed side 221, liner rear wall 21 and housing rear 13 are bonded by fastener affixed, it is ensured that liner annular wall 22 Leakproofness between liner rear wall 21, between liner rear wall 21 and housing rear 13.

It is to be appreciated that parameter A can also for 10mm, 14mm, 16mm, 20mm, 25mm etc., as long as meet 10mm≤A≤ The requirement of 25mm.

It is to be appreciated that parameter L can also be 3mm, 5mm, 9mm, 11mm, 15mm etc., as long as meeting 3mm≤L≤15mm Requirement.

It is to be appreciated that parameter H can also be 3mm, 4mm, 6mm, 7mm etc., as long as meeting 3mm≤H≤7mm requirement i.e. It can.

Embodiment two:

Compared to embodiment one, the present embodiment provides another 22 structures of liner annular wall.

As shown in figure 5, the liner annular wall 22 is split type structure, including the first plate and the second plate, the liner 2 Roof and side wall set on its two sides form the first plate, and the bottom wall of the liner forms the second plate, the first plate and the second plate Respective side is intermarginal to be sealed affixed by wiredrawn edge structure 3, is thus spliced to form the liner annular wall 22 of box shape.

It is to be appreciated that the first plate can also be bent to form the first side wall and roof, the second plate can be bent to form bottom wall And second sidewall, the first plate and the second plate are spliced to form the liner annular wall 22 of box shape, also should be regarded as the specific of the present embodiment Embodiment.

It is formed it is to be appreciated that the liner annular wall 22 is connected by three plates, the first plate is bent to form liner annular Any two continuous wall in the side wall of wall 22, bottom wall and roof, the second plate and third plate are respectively formed remaining two walls, also answer It is considered as the specific embodiment of the present embodiment.

Remaining structure of oven described in the present embodiment and effect and embodiment one are consistent, and details are not described herein again.

Claims (10)

1. a kind of oven of good heat dissipation effect, liner and control chamber including shell and in the shell, the control Chamber is located at liner side, and wiring board is equipped in the control chamber, and the liner includes liner rear wall and circular liner rear wall week The liner annular wall of edge setting, the liner rear wall and liner annular wall are enclosed cooking cavity, which is characterized in that the shell Heat dissipation cavity is equipped between rear wall and the liner rear wall, the heat dissipation cavity is led to the control chamber, opened up on the housing rear Heat release hole, the heat in the control chamber are discharged into free surrounding space after passing sequentially through heat dissipation cavity and heat release hole.

2. a kind of oven of good heat dissipation effect according to claim 1, which is characterized in that the housing rear be equipped with to The first convex closure extended afterwards, the liner rear wall are equipped with the second convex closure extended backward, first convex closure and the second convex closure It is laminated to form the heat dissipation cavity, the heat release hole is provided on first convex closure.

3. a kind of oven of good heat dissipation effect according to claim 2, which is characterized in that the depth of first convex closure is big In the depth of second convex closure, the two depth difference is A, 10mm≤A≤25mm.

4. a kind of oven of good heat dissipation effect according to claim 1, which is characterized in that be equipped with water tank in the control chamber And the steam generator being connected to water tank, the water source in water tank are converted into steam by steam generator and input in liner.

5. a kind of oven of good heat dissipation effect according to claim 1-4, which is characterized in that the liner annular Wall is connected by strip panel-bending and is formed, and is connected between the lateral margin of the plate by wiredrawn edge sealing structure, the wiredrawn edge structure Including passing through the crimping being reversely bent to form by lateral margin, the crimping is enclosed socket reversed each other with corresponding lateral margin, pacifies After being attached to position, the crimping is inserted into corresponding socket, so as to plant snapping between lateral margin each other.

6. a kind of oven of good heat dissipation effect according to claim 5, which is characterized in that the depth of the socket is L, 3mm≤L≤15mm；Alternatively, after the wiredrawn edge structure completes assembly, the wiredrawn edge structure with a thickness of H, 3mm≤H≤7mm.

7. a kind of oven of good heat dissipation effect according to claim 5, which is characterized in that the liner annular wall is integrated Formula structure, by being bent to form the roof, side wall and bottom wall of the liner, the two sides of the plate are intermarginal to be passed through the plate Wiredrawn edge sealing structure is affixed.

8. a kind of oven of good heat dissipation effect according to claim 5, which is characterized in that the liner annular wall is fission Formula structure is at least connected by two plates and is formed, and the plate cooperatively forms the roof, side wall and bottom wall of the liner, phase The respective side of adjacent plate is intermarginal affixed by wiredrawn edge sealing structure.

9. a kind of oven of good heat dissipation effect according to claim 5, which is characterized in that the rear of the liner annular wall Outward bending simultaneously forms cricoid affixed side, and the affixed side and the liner rear wall sealing paste merga pass fastener are affixed.

10. a kind of oven of good heat dissipation effect according to claim 1, which is characterized in that the liner annular wall it is each It is connected by fillet between wall surface.