CN209153270U - A kind of ventilative system of oven - Google Patents

Abstract

The utility model relates to a kind of ventilative systems of oven, mounting plate including liner and above the liner offers the first air hole passed through for hot gas on liner roof, corresponding, the second air hole is offered on mounting plate, further includes ventilative tube assembly, air guide member and blower.The utility model increases the air pressure being heated in oven inner container by ventilative tube assembly and maintains relative constant pressure always, avoids the natural output of a large amount of hot gas, improves heat utilization ratio, and then improve cooking efficiency；Simultaneously, the part hot gas of ventilative tube assembly output is passed through after mixing in the first air-guiding aisle with extraneous cold air and is exported by the second air-guiding aisle, cooling effect can be played to the oven control circuit board installed above the second air-guiding aisle, but since thermal resistance increases during this, reach identical cooling effect, the air quantity of required blower reduces, also accordingly reduces to the power requirement of blower, fan noise is not only reduced, energy consumption is also saved.

Description

A kind of ventilative system of oven

Technical field

The utility model relates to a kind of ventilative systems of oven.

Background technique

A ventilation port is arranged in high-end oven currently on the market generally above oven inner container, and is realized by ventilative pipe The balance of pressure and humidity in oven inner container is realized in connection between liner and wind deflector.

For example, application publication number be CN106063680A Chinese patent application " a kind of oven inner container structure " (application number: 201610604898.2) a kind of structure is disclosed, including the liner shell for surrounding baking chamber, it is arranged in liner shell Heater, the left side of liner shell inner wall, right side, rear survey are respectively equipped with right baffle-plate, right shell body, rear baffle, right baffle-plate, right shell body, There is gap, right baffle-plate, right shell body, the surrounding of rear baffle plate are close in liner shell between the middle part and liner shell inner wall of rear baffle Wall setting is respectively equipped with the first air-heater, the second air-heater and the between right baffle-plate, right shell body, rear baffle and liner shell inner wall Three air-heaters；Air inlet, the left and right two of right baffle-plate, right shell body and rear baffle are equipped in the middle part of right baffle-plate, right shell body and rear baffle Side is provided with air outlet.

Above-mentioned existing oven ventilation port is generally provided with the middle part of upper mounting plate, and ventilative Guan Weiyi structure is relatively simple Through type cylindrical tube.Liner is discharged in the hot-air expanded in oven by ventilative pipe, and uses cross flow fan and single cold wind Channel discharges hot-air, so that the extra heat of oven, which is taken away, also reduces the temperature for setting control circuit board.

Since in cooking cavity, air quality is bigger, heat flow density is higher, and capacity usage ratio is higher, cooking food When efficiency it is higher, and in cooking process air heats will necessarily expand, hot-airs a large amount of in this way are discharged from permeability cell, Not only result in thermal loss, influence cooking efficiency, it is also desirable to biggish air quantity, cause cross flow fan generate noise also compared with Greatly.

Utility model content

For the current state of the art, the technical problem to be solved by the utility model is to provide one kind to pass through setting pressurization It bakes structure and improves heat utilization ratio and cooking efficiency, the ventilative system of oven for reducing noise, energy saving.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of ventilative system of oven, including it is interior Gallbladder and the mounting plate above the liner offer the first air hole passed through for hot gas on the liner roof, corresponding, The second air hole is offered on the mounting plate, it is characterised in that: further include

Ventilative tube assembly, for making pressure in liner keep relative constant, the first end of the ventilative tube assembly with it is described First air hole is connected, and the second end of the ventilative tube assembly is connected with the second air hole；

Air guide member is formed with the first air-guiding aisle, institute above the mounting plate and between the upper surface of mounting plate State be provided on air guide member for cold air enter the first air-guiding aisle air inlet, the upper port of the ventilative tube assembly be located at this first In air-guiding aisle；The top of the air guide member is formed with the second air-guiding aisle to extension on front side of liner, second air-guiding aisle Rear portion be connected with first air-guiding aisle；And

Blower, set on first air-guiding aisle rear portion and for the gaseous mixture in the first air-guiding aisle to be led through second The output of wind channel.

As an improvement, first air-guiding aisle has the main part for being configured to rectangle and prolongs forward from the main part The expansion stretched, the forward edge middle part of the main part, which has, extends mouth, and the front side edge lengths of the expansion are big It is less than the length of main part in the extension mouth length, and the sidewall symmetry of the expansion is arranged and is configured to bowed out The arcuate structure risen.Using such structure, after hot gas enters the first air-guiding aisle by air inlet tube assembly, there is one to delay Slowly the process spread, hot gas can be mixed well with the cold air for entering the first air-guiding aisle in this process, in order to subsequent to control Circuit board processed plays the role of better radiating and cooling.

Preferably, 0.3~0.6 times of partial-length based on the length for extending mouth, the expansion front side edge Length based on 0.6~0.8 times of partial-length.Experiment proves that using such parameter, it can be in the gathering and expansion of hot gas Preferable balanced action is played between dissipating, is conducive to hot gas and is mixed rapidly with cold air.

Preferably, the lower part of the air guide member has the side plate extended downwardly along edge, the upper end of the ventilative tube assembly Mouth is arranged and is located in the expansion of the first air-guiding aisle by the front side wall of proximal panel.Above-mentioned side plate height forms first and leads The height in wind channel is conducive to provide sufficient space for the mixing of cold and hot gas, and the upper port of ventilative tube assembly is made to be located at the In the expansion of one air-guiding aisle, be then conducive to the gathering to hot gas and be balanced with diffusion, can make hot gas scatter and Mix it sufficiently with the cold air for entering the first air-guiding aisle.

Preferably, the air inlet is opened on the left side wall and/or right side wall and/or rear wall of air guide member side plate.Into One step is preferred, and the left side wall of the air guide member side plate, right side wall offer air inlet on rear wall, the structure make cold air from Each side of first air-guiding aisle imports, and is conducive to sufficiently quickly mix with hot gas.

In above-mentioned each preferred embodiment, offers at the top of first air-guiding aisle and be connected with the second air-guiding aisle Ventilation mouth, is formed with annular region between the air intake and the first air-guiding aisle of second air-guiding aisle, the blower is to set In the centrifugal blower of the annular region, ventilation mouth constitutes the air inlet of centrifugal blower.Using such structure, quickly will be conducive to Gaseous mixture in first air-guiding aisle sucks the second air-guiding aisle and exports from back to front, to be conducive to the part gaseous mixture to roasting The control circuit board of case cools down.

According to the flow direction of wind, from annular region edge, width is become larger forward in the downstream of second air-guiding aisle And height is gradually reduced, the upper surface in second air-guiding aisle downstream is formed with the installation for installing control circuit of oven plate Area, the air outlet of the second air-guiding aisle extend at the top edge of oven leading flank.The structure is conducive to accelerate wind speed, dissipates Hot face increases, and strengthens heat dissipation effect.

As an improvement, the ventilative tube assembly includes permeability cell, top cover and elastic component, the permeability cell up and down, institute Stating top cover can be set to up or down on permeability cell and can the upper port of permeability cell be covered or be opened, and the elastic component makes top cover It remains the trend of the upper port covering of permeability cell.Using such structure, the hot gas expanded in oven inner container is avoided certainly So output, and make to maintain more constant pressure in oven inner container always, to improve the utilization rate of heat, and then improve culinary art Efficiency.

For the ease of installation, the ventilative tube assembly further includes installation lid, and the installation lid dismountable type is set to permeability cell Top and installation cavity is formed between permeability cell, the top cover can up or down be set to the installation cavity in, the elasticity Part is set between installation lid and top cover, is provided with the gas outlet passed through for hot gas on the side wall of the installation lid.

Preferably, the outlet is offered on the side wall that the installation lid is arranged towards the second air-guiding aisle inlet end Mouthful, the gas outlet is offered respectively on the side wall that the installation lid is arranged towards the first air-guiding aisle left and right sides.Using Such arrangement can be such that hot gas is mixed with cold air rapidly under centrifugal blower effect.

Compared with the prior art, the advantages of the utility model are: the utility model is made in oven by ventilative tube assembly The air pressure being heated in gallbladder increases and maintains relative constant pressure always, avoids the natural output of a large amount of hot gas, mentions High heat utilization ratio, and then improve cooking efficiency；Meanwhile the part hot gas of ventilative tube assembly output is in the first air-guiding aisle It is interior mixed with extraneous cold air after through being exported by the second air-guiding aisle, route can be controlled to the oven installed above the second air-guiding aisle Plate plays cooling effect, but since thermal resistance increases in the process for this, reaches identical cooling effect, the air quantity of required blower subtracts It is small, the power requirement of blower is also accordingly reduced, fan noise is not only reduced, also saves energy consumption.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the cross-sectional view of Fig. 1；

Fig. 3 is the structural schematic diagram of air guide member in Fig. 1；

Fig. 4 is the structural schematic diagram of another angle of Fig. 3；

Fig. 5 is the structural schematic diagram of ventilative tube assembly in the utility model embodiment；

Fig. 6 is the cross-sectional view of Fig. 5.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As shown in figs. 1 to 6, the ventilative system of the oven of the present embodiment includes liner 1, mounting plate 2, ventilative tube assembly 3, wind-guiding Part 4 and blower 5, mounting plate 2 are set to 1 top of liner and are formed with the gap for installing heat insulation foam between liner, and liner 1 pushes up The first air hole 11 passed through for hot gas is offered on wall, it is corresponding, the second air hole 21 is offered on mounting plate 2.

The ventilative tube assembly 3 of the present embodiment is for making pressure in liner 1 keep relative constant, and the first of tube assembly 3 of breathing freely End is connected with the first air hole 11, and the second end of ventilative tube assembly 3 is connected with the second air hole 21.Specifically, permeability cell Component 3 includes permeability cell 31, top cover 32 and elastic component 33, and up and down, the edge of 31 lower end of permeability cell is to extension for permeability cell 31 The diaphragm seal 311 that be formed with can in 1 roof of liner is stretched, top cover 32 can be set to up or down on permeability cell 31 and can incite somebody to action The upper port of permeability cell 31 is covered or is opened, and elastic component 33 is spring, which remain top cover 32 by permeability cell 31 The trend that upper port covers.Such structure avoids expansion hot gas in oven inner container 1 and exports naturally, and makes in oven inner container 1 Always more constant pressure is maintained, to improve the utilization rate of heat, and then improves cooking efficiency.For the ease of installation, thoroughly Tracheae component 3 further include installation lid 34, installation lid 34 be connected through a screw thread mode dismountable type set on permeability cell 31 top and with Installation cavity 30 is formed between permeability cell 31, top cover 32 can be set in the installation cavity 30 up or down, the both ends of elastic component 33 It is pressed between the lower surface of installation lid 34 and the upper surface of top cover 32 respectively, is provided on the side wall of installation lid 34 and is passed through for hot gas Gas outlet 341.

In the present embodiment, air guide member 4 is set to 2 top of mounting plate and is formed with first between the upper surface of mounting plate 2 Air-guiding aisle 41 is provided with the air inlet 410 for entering the first air-guiding aisle 41 for cold air, the upper end for tube assembly 3 of breathing freely on air guide member 4 Mouth is located in first air-guiding aisle 41.The top of air guide member 4 is formed with the second air-guiding aisle 42 extended on front side of liner 1, The rear portion of second air-guiding aisle 42 is connected with the first air-guiding aisle 41.Blower 5 is set to the rear portion of the first air-guiding aisle 41 simultaneously For the gaseous mixture in the first air-guiding aisle 41 to be exported through the second air-guiding aisle 42.Specifically, first wind-guiding of the present embodiment Channel 41 has the expansion 412 for being configured to the main part 411 of rectangle and extending forward from the main part 411, main body Have in the middle part of the forward edge of part 411 and extend mouth 413, the front side edge lengths of expansion 412 are greater than 413 length of extension mouth And it is less than the length of main part 411, and the sidewall symmetry of expansion 412 is arranged and is configured to the arcuate structure to arch upward outward 4121.After hot gas enters the first air-guiding aisle 41 by air inlet tube assembly 3, there is the process slowly spread, in the mistake Hot gas can be mixed well with the cold air for entering the first air-guiding aisle 41 in journey, be played preferably in order to subsequent to control circuit board Radiating and cooling effect.The length of above-mentioned extension mouth 413 is 0.3~0.6 times of main 411 length of body portion, 412 front side of expansion The length on side is 0.6~0.8 times of main 411 length of body portion.Experiment proves that using such parameter, it can be in the receipts of hot gas Hold together and play between spreading preferable balanced action, is conducive to hot gas and is mixed rapidly with cold air.4 lower part of air guide member of the present embodiment With the side plate 43 extended downwardly along edge, the upper port of ventilative tube assembly 3 arranges by the front side wall of proximal panel 43 and is located at the In the expansion 412 of one air-guiding aisle 41.The installation lid 34 of ventilative tube assembly 3 is arranged towards 42 inlet end of the second air-guiding aisle Side wall on offer a gas outlet 341, installation lid 34 is arranged towards 41 left and right sides arcuate structure 4121 of the first air-guiding aisle Side wall on offer a gas outlet 341 respectively so that hot gas centrifugal blower 5 effect under mixed with cold air rapidly.On The height that 43 height of side plate forms the first air-guiding aisle 41 is stated, is conducive to provide sufficient space for the mixing of cold and hot gas, and Be located at the upper port of ventilative tube assembly 3 in the expansion 412 of first air-guiding aisle 41, then be conducive to gathering to hot gas and Diffusion is balanced, and hot gas can be made to scatter and lead it with entering first The cold air in wind channel 41 is sufficiently mixed.The left side wall of 4 side plate 43 of air guide member, right side wall offer air inlet on rear wall Mouth 410, the structure import cold air from each side of the first air-guiding aisle, are conducive to sufficiently quickly mix with hot gas It closes.

The ventilation mouth 44 being connected with the second air-guiding aisle 42 is offered at the top of first air-guiding aisle 41 of the present embodiment, the Annular region 45 is formed between the air intake of two air-guiding aisles 42 and the first air-guiding aisle 41, blower 5 is set on the annulus The centrifugal blower in domain 45, ventilation mouth 44 constitute the air inlet of centrifugal blower.Such structure is conducive to quickly lead to the first wind-guiding Gaseous mixture in road 41 sucks the second air-guiding aisle 42 and exports from back to front, to be conducive to the control of the part gaseous mixture to oven Circuit board cooling processed.According to the flow direction of wind, the downstream of the second air-guiding aisle 42 from 45 edge of annular region forward width by Gradual change is big and height is gradually reduced, and the upper surface in 42 downstream of the second air-guiding aisle is formed with for installing control circuit of oven plate The air outlet 421 of installing zone 420, the second air-guiding aisle 42 extends at the top edge of 1 leading flank of oven inner container.The structure has Conducive to wind speed is accelerated, radiating surface is increased, and strengthens heat dissipation effect.

When system ventilative using the oven of the present embodiment, after pressure is greater than safety value or setting value in liner 1, hot gas Compression elastic piece 33 opens top cover 32 upwards, and hot gas can enter the first air-guiding aisle 41 from the gas outlet 341 of installation lid 34, should In the process, tube assembly 3 of breathing freely increases the air pressure being heated in oven inner container 1 and maintains relative constant pressure always, The natural output for avoiding a large amount of hot gas, improves heat utilization ratio, and then improve cooking efficiency；Meanwhile ventilative tube assembly 3 The part hot gas of output mixed in the first air-guiding aisle 41 with extraneous cold air after through being exported by the second air-guiding aisle 42, can be to the The oven control circuit board installed above two air-guiding aisles 42 plays cooling effect, but since thermal resistance increases in the process for this, reaches Air quantity to identical cooling effect, required blower 5 reduces, and also accordingly reduces to the power requirement of blower 5, not only reduces wind Machine noise, also saves energy consumption.

Claims (10)

1. a kind of ventilative system of oven, including liner (1) and the mounting plate (2) being set to above the liner (1), the liner (1) The first air hole (11) passed through for hot gas is offered on roof, it is corresponding, the second air hole is offered on the mounting plate (2) (21), it is characterised in that: further include

Ventilative tube assembly (3), for making pressure in liner (1) keep relative constant, the first end of the ventilative tube assembly (3) with First air hole (11) is connected, and the second end of the ventilative tube assembly (3) is connected with the second air hole (21)；

Air guide member (4) is set to above the mounting plate (2) and is formed with the first wind-guiding between the upper surface of mounting plate (2) and leads to Road (41) is provided with the air inlet (410) for entering the first air-guiding aisle (41) for cold air, the permeability cell on the air guide member (4) The upper port of component (3) is located in first air-guiding aisle (41)；The top of the air guide member (4) is formed with before liner (1) The second air-guiding aisle (42) that side extends, the rear portion of second air-guiding aisle (42) is connected with first air-guiding aisle (41) It is logical；And

Blower (5) is set to the rear portion of first air-guiding aisle (41) and is used for the gaseous mixture in the first air-guiding aisle (41) It is exported through the second air-guiding aisle (42).

2. the ventilative system of oven according to claim 1, it is characterised in that: first air-guiding aisle (41) has forming Main part (411) for rectangle and the expansion (412) that extends forward from the main part (411), the main part (411) have in the middle part of forward edge and extend mouth (413), the front side edge lengths of the expansion (412) are greater than the extension mouth (413) length and be less than the length of main part (411), and the sidewall symmetry of the expansion (412) is arranged and is configured to The arcuate structure (4121) to arch upward outward.

3. the ventilative system of oven according to claim 2, it is characterised in that: based on the length for extending mouth (413) Partially 0.3~0.6 times of (411) length, the length of expansion (412) front side edge are main body portion (411) length 0.6~0.8 times.

4. the ventilative system of oven according to claim 2, it is characterised in that: the lower part of the air guide member (4) has along side The side plate (43) that edge extends downwardly, front side wall of the upper port of the ventilative tube assembly (3) by proximal panel (43) are arranged and are located at In the expansion (412) of first air-guiding aisle (41).

5. the ventilative system of oven according to claim 1, it is characterised in that: the air inlet (410) is opened in air guide member (4) on the left side wall and/or right side wall and/or rear wall of side plate (43).

6. the ventilative system of oven according to claim 1, it is characterised in that: opened at the top of first air-guiding aisle (41) Equipped with the ventilation mouth (44) being connected with the second air-guiding aisle (42), the air intake of second air-guiding aisle (42) is led with first It is formed between wind channel (41) annular region (45), the blower (5) is the centrifugal blower set on the annular region (45).

7. the ventilative system of oven according to claim 6, it is characterised in that: according to the flow direction of wind, described second is led From annular region (45) edge, width becomes larger and is highly gradually reduced, second wind-guiding forward in the downstream in wind channel (42) The upper surface in channel (42) downstream is formed with the installing zone (420) for installing control circuit of oven plate.

8. the ventilative system of oven according to claim 1, it is characterised in that: the ventilative tube assembly (3) includes permeability cell (31), top cover (32) and elastic component (33), up and down, the top cover (32) can be set to the permeability cell (31) up or down On permeability cell (31) and can the upper port of permeability cell (31) be covered or be opened, the elastic component (33) protects top cover (32) always It holds the trend of the upper port covering of permeability cell (31).

9. the ventilative system of oven according to claim 8, it is characterised in that: the ventilative tube assembly (3) further includes peace Capping (34), installation lid (34) dismountable type are set to the top of permeability cell (31) and are formed with installation between permeability cell (31) Chamber (30), the top cover (32) can be set in the installation cavity (30) up or down, and the elastic component (33) is set to installation lid (34) between top cover (32), the gas outlet (341) passed through for hot gas is provided on the side wall of the installation lid (34).

10. the ventilative system of oven according to claim 9, it is characterised in that: the second wind-guiding of installation lid (34) direction The gas outlet (341), the first wind-guiding of installation lid (34) direction are offered on the side wall of channel (42) inlet end arrangement The gas outlet (341) is offered on the side wall arranged at left and right sides of channel (41) respectively.