CN1752459A - Blower structure for microwave oven - Google Patents
Blower structure for microwave oven Download PDFInfo
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- CN1752459A CN1752459A CN 200410071966 CN200410071966A CN1752459A CN 1752459 A CN1752459 A CN 1752459A CN 200410071966 CN200410071966 CN 200410071966 CN 200410071966 A CN200410071966 A CN 200410071966A CN 1752459 A CN1752459 A CN 1752459A
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- microwave oven
- shell
- loam cake
- blower
- top surface
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Abstract
There is disclosed a blower structure of the microwave oven, which includes a blowing-in fan, a casing and a top cover. The blowing-in fan disposed in the casing comprises a plurality of radiated blades. The top cover disposed on top of the casing is used for closing the upper opening of the casing. The casing includes a casing body and a bottom cover and they form an integral structure so as to save the assembling process of the casing body and the bottom cover and lower production costs.
Description
Technical field
The present invention relates to a kind of microwave oven, particularly relate to a kind of blower fan structure of microwave oven.
Background technique
As everyone knows, thus microwave oven is a kind of household electric appliance that produced microwave and made the microwave irradiation food that produced make food obtain cooking by magnetron.
According to the difference of its purposes, microwave oven can be divided into: the household microwave oven and two types of the commercial microwave oven that is equipped with large-scale or a plurality of magnetrons that are equipped with small-sized magnetron.
Glass rotating disk that can make food with its rotation of general employing in the household microwave oven is so that evenly heated food; Agitation fan that is used for stirring diffusing microwave of general employing in the commercial microwave oven is so that evenly heated food.
Commercial microwave oven mainly is applicable to the Snack Bar that utilization rate is higher and needs the Food Store of cooking food at short notice, so the power of the general household microwave oven of its power ratio is big.
With reference to the accompanying drawings above-mentioned existing general commercial microwave oven structure is described in detail: Fig. 1 is existing general commercial microwave oven structure schematic representation; Fig. 2 is the STRUCTURE DECOMPOSITION schematic representation of the blower fan structure of existing general commercial microwave oven.
As shown in Figure 1, existing general commercial microwave oven comprises: shell, cooking room 20 and electric control chamber 30; The front of described furnace chamber 20 is provided with fire door 40.
Described shell forms the outward appearance of microwave oven, also plays the effect of protection cooking room 20 simultaneously, and therefore, shell generally just is made with the steel plate with certain intensity.
Described shell is that the center is provided with cooking room 20, comprising: cover the end face of cooking room 20 and the rear board 17 at the top plate 11 of bi-side, the base plate 13 of protecting the bottom surface of cooking room 20, the front panel 15 that forms cooking room 20 fronts and protection cooking room 20 back sides simultaneously.
Described cooking room 20 is spaces of cooking food, constitutes the food after can putting into food and take out the cooking from its front openings by the box body of the rectangular shape of front openings.
The top of described cooking room 20 is provided with waveguide, and the effect of waveguide is that the MT Microwave Transmission that magnetron 33 produces is arrived cooking room 20 inside.
One side of described waveguide is provided with the synchronous machine that is used for driving agitation fan.
As mentioned above, not only the top of cooking room 20 is provided with waveguide, and the below of cooking room 20 also is provided with waveguide; Because the upper and lower of cooking room 20 is provided with waveguide respectively, so microwave can be simultaneously respectively from irradiation cooking room 20 inside, cooking room 20 above and belows.
Described electric control chamber 30 is arranged on the right side of cooking room 20, and its inside is provided with a plurality of electronic units.
Described electric control chamber 30 inside are provided with: a plurality of electronic units such as transformer 31, magnetron 33, blower 35, capacitor 37 and noise filter 39.
In described a plurality of electronic unit, transformer 31 and magnetron 33 produce the microwave of irradiation furnace chamber 20 inside.In the process that produces microwave, described electronic unit all can generate heat.Therefore, in the time of cooking food, the temperature in the electric control chamber 30 can raise.
When running of microwave oven, for the electric control chamber 30 that chilling temperature raises, described blower 35 constantly sucks outside air.
Described blower 35 is to rotate by the inner blowing fan (not shown) of fan electromotor driving to suck air.When blowing fan rotated, outside air constantly flowed into electric control chamber 30 inside, and in this process, leaked-in air makes transformer 31 obtain natural cooling through around the transformer 31.
Described electric control chamber 30 inside are provided with electric control chamber exhaust manifolds 39, more particularly, are provided with electric control chamber exhaust manifolds 39 in a side of described blower 35; The effect of described electric control chamber exhaust manifolds 39 is guiding blower 35 inhaled airs, makes its magnetron 33 backs of flowing through to the outside discharge of electric control chamber.In addition, be formed with on the described rear board 17 and be used for to the outside relief opening (not shown) of discharging the air in the electric control chamber exhaust manifolds 39 of microwave oven.
Below with reference to Fig. 2 the structure of described blower 35 is described in more detail:
As shown in Figure 2, described blower 35 comprises: body 35a, be separately fixed at body 35a up and down loam cake 35b and lower cover 35c, bottom 35d and the blowing fan 35e of both sides; Described blower 35 utilizes analog bracket 35f to be fixed on the wall of electric control chamber 30.
The assembling of each parts of described blower 35 and welding manner are: the two ends up and down that loam cake 35b and lower cover 35c are inserted body 35a respectively, respectively loam cake 35b and lower cover 35c and body 35a are welded together then, described body 35a is interfixed with loam cake 35b and lower cover 35c respectively.Then, behind the below insertion blowing fan 35e of lower cover 35c, utilize screw to be connected and fixed bottom 35d, a blower 35 has just been assembled successfully.
But the blower of above-mentioned existing general commercial microwave oven has following shortcoming:
The complex structure of blower 35, constituent elements number are many, and it is very complicated to assemble, weld technology, the manufacture cost height.
In addition, for blower 35 is installed in the electric control chamber 30, need utilize screw that analog bracket 35f is fixed on the loam cake 35b, and analog bracket 35f is fixed on the wall of electric control chamber 30, make that the mounting process of blower 35 is also very complicated, finally cause the packaging technology of microwave oven very complicated, reduced manufacturing efficiency.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of above-mentioned existing general commercial microwave oven, and a kind of blower fan structure of microwave oven simple in structure, easy to assembly, with low cost is provided.
In order to solve described technical problem, the technical solution used in the present invention is: the blower fan structure of microwave oven of the present invention comprises: blowing fan, shell and loam cake; Described blowing fan comprises the blade of a plurality of radial settings; Described blowing fan is arranged on the inside of shell; Described loam cake be arranged on shell above, with the sealing of the upper opening of shell; Described shell, comprising: outer cover body and lower cover; Described outer cover body and lower cover are into a single integrated structure.
Described shell is made with synthetic resin.
Described loam cake comprises: upper cover top surface, left analog bracket and right analog bracket.
Described upper cover top surface, left analog bracket and right analog bracket are into a single integrated structure.
The invention has the beneficial effects as follows: the outer cover body of blower and lower cover are integrally formed, and be simple in structure, saved the assembling procedure of outer cover body and lower cover, reduced manufacture cost.
The upper cover top surface of blower and analog bracket also are integrally formed, simple in structure, have saved the assembling procedure of upper cover top surface and analog bracket, have further reduced manufacture cost.
Said structure makes the easier microwave oven inside that is arranged on of blower, has simplified the assembling procedure of microwave oven, has improved manufacturing efficiency.
Description of drawings
Fig. 1 is existing general commercial microwave oven structure schematic representation;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic representation of the blower fan structure of existing general commercial microwave oven;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic representation of the blower fan structure of microwave oven of the present invention;
Fig. 4 is the oblique drawing of the blower fan structure of microwave oven of the present invention.
Among the figure:
100: blower 110: blowing fan
130: shell 131: outer cover body
131a: air blowing opening 131b: attachment hole
133: lower cover 133a: air suction inlet
150: loam cake 151: upper cover top surface
151a: connecting port 151b: through hole
170: left fixing frame 170a: fixed end
180: right fixing frame
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 3 is the STRUCTURE DECOMPOSITION schematic representation of the blower fan structure of microwave oven of the present invention; Fig. 4 is the oblique drawing of the blower fan structure of microwave oven of the present invention.
As shown in Figure 3 and Figure 4, adopt the microwave oven of the blower fan structure of microwave oven of the present invention to comprise: shell, electric control chamber and cooking room; Described electric control chamber inner and upper is provided with blower 100.
Described blower 100 comprises: blowing fan 110, shell 130 and loam cake 150.
Described blowing fan 110 comprises the blade 110a of a plurality of radial settings, and the effect of blade 110a is: the air suction inlet 133a by shell 130 belows sucks air.
The air that is inhaled into blowing fan 110 is directly blown to the magnetron (not shown) by the exhaust duct (not shown), and then is discharged to the microwave oven outside.
Described shell 130 comprises: outer cover body 131 and lower cover 133.
The limbs of described outer cover body 131 are cylindrical shape, and its effect is: the air supply direction that guides the blowing fan 110 of the portion that sets within it; The left side of described outer cover body 131 is formed with the lead air blowing opening 131a of exhaust duct (not shown) of air stream; Be formed with a plurality of attachment hole 131b that are used for connecting loam cake 150 on the end face of described outer cover body 131.
Described lower cover 133 be formed on outer cover body 131 below, the perforation of its central position is formed with the air suction inlet 133a that air is drawn into shell 130 inside.
Described outer cover body 131 and lower cover 133 are integrally formed by the synthetic resin material, more particularly, and by the plastics integrated injection molding.
The working process of the described integrally formed shell 130 that comprises outer cover body 131 and lower cover 133 is as follows:
At first, produce the mould of the shell 130 that comprises outer cover body 131 and lower cover 133, in mould, behind the injected plastic, apply certain pressure and heat, the shell 131 of molding and forming integrative-structure.Certainly, also can produce outer cover body 131 and lower cover 133 respectively separately after, with tackiness agent outer cover body 131 and lower cover 133 are bonded into shell 131 again.And for actual convenience, perhaps for simplified manufacturing technique, the making method of shell 131 can also have multiple choices.In addition, the material of described shell 130 is not limited in synthetic resin materials such as plastics.
Described loam cake 150 comprises: upper cover top surface 151, left analog bracket 170 and right analog bracket 180.
The effect of described upper cover top surface 151 is upper openings of closed casing 130; The perforation of the central position of described upper cover top surface 151 is formed with the connecting port 151a that the running shaft that is used for making blowing fan 110 is connected with the running shaft of fan electromotor (not shown); The edge of described upper cover top surface 151 be formed with shell 130 end faces on the corresponding through hole 151b of attachment hole 131b.
The left side of described upper cover top surface 151 and right-hand end are formed with left fixing frame 170 and right fixing frame 180 respectively.
Described left fixing frame 170 is arranged on the left end of upper cover top surface 151, be the state of bending upward, the left end of left side fixing frame 170 is formed with the fixed end 170a of downward bending, is formed with on the fixed end 170a to be used for making left fixing frame 170 to be fixed on the hook protuberance 170b of electric control chamber one side; Described right fixing frame 180 is arranged on the right-hand end of upper cover top surface 151, is the state of bending upward, is formed with the attachment hole (not shown) on the right fixing frame 180.
Working process to described loam cake 150 is illustrated below:
Described loam cake 150 also plays the effect of protection blowing fan 110 except the function of upper opening with closed casing 130, therefore be to make with having the stronger iron plate of rigidity.
At first, prepare to have certain thickness iron plate and the mould that is used for making loam cake 150.Then, described mould is installed in the stamping press, carries out punching press after inserting iron plate to stamping press is inner, can process easily have the fixing holder in a left side add 170 and right fixing holder add 180 loam cake 150.But, described loam cake 150 under state with upper cover top surface 151, make the fixing holder in a left side add 170 and right fixing holder add 180 be bent to form upward respectively also passable; Can also make separately respectively upper cover top surface 151, the fixing holder in a left side add 170 and right fixing holder add 180, utilize method such as welding that three's formation that mutually combines is also passable then.
Described loam cake 150 except can make upper cover top surface 151, the fixing holder in a left side add 170 and right fixing holder add 180 three in one form, can also be with other several different methods formation; Therefore, the making method of described loam cake 150 can according to the convenience in the design or make multiple choices are conveniently arranged.
Assembling process to described blowing fan 110, shell 130 and loam cake 150 is illustrated below:
At first, described shell 130 is fixed on it can not be moved,, loam cake 150 is set at the upper opening place of shell 130 with blowing fan 110 portion that sets within it.At this moment, the attachment hole 131b on through hole 151b and the shell 130 on the loam cake 150 is aimed at mutually respectively, then, insertion screw S and it is tightened in the through hole 151b of loam cake 150, loam cake 150 just has been securely fixed on the shell 130.
Certainly, though not shown, the running shaft of the blowing fan 110 that is arranged at shell 130 inside is connected with the fan electromotor running shaft.
As mentioned above, basic fundamental of the present invention is contemplated that: make outer cover body 131 and lower cover 133 integrally formed; In other words, make upper cover top surface 151, the fixing holder in a left side add 170 and right fixing holder add 180 integrally formed.It is worthy of note that under the situation that does not exceed basic fundamental design of the present invention, those of ordinary skills need not can associate some other embodiment through creative work, therefore, protection scope of the present invention is as the criterion with claims.
For example, illustrate in this embodiment: described shell 130 fits together with loam cake 150 usefulness screw S, but in fact also can form hook portion by the outboard end that makes loam cake 150, and itself and shell 130 are fitted together.
Claims (4)
1. the blower fan structure of a microwave oven comprises: blowing fan, shell and loam cake; Described blowing fan comprises the blade of a plurality of radial settings; Described blowing fan is arranged on the inside of shell; Described loam cake be arranged on shell above, with the sealing of the upper opening of shell; It is characterized in that: described shell (130) comprising: outer cover body (131) and lower cover (133); Described outer cover body (131) and lower cover (133) are into a single integrated structure.
2. the blower fan structure of microwave oven according to claim 1, it is characterized in that: described shell (130) is made with synthetic resin.
3. according to the blower fan structure of claim 1 or the described microwave oven of claim 2, it is characterized in that: described loam cake (150) comprising: upper cover top surface (151), left analog bracket (170) and right analog bracket (180).
4. the blower fan structure of microwave oven according to claim 3, it is characterized in that: described upper cover top surface (151), left analog bracket (170) and right analog bracket (180) are into a single integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410071966 CN1752459A (en) | 2004-09-20 | 2004-09-20 | Blower structure for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410071966 CN1752459A (en) | 2004-09-20 | 2004-09-20 | Blower structure for microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752459A true CN1752459A (en) | 2006-03-29 |
Family
ID=36679429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410071966 Pending CN1752459A (en) | 2004-09-20 | 2004-09-20 | Blower structure for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1752459A (en) |
-
2004
- 2004-09-20 CN CN 200410071966 patent/CN1752459A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |