CN208095035U - For electric installation and microwave cooking electric appliance - Google Patents
For electric installation and microwave cooking electric appliance Download PDFInfo
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- CN208095035U CN208095035U CN201820617477.8U CN201820617477U CN208095035U CN 208095035 U CN208095035 U CN 208095035U CN 201820617477 U CN201820617477 U CN 201820617477U CN 208095035 U CN208095035 U CN 208095035U
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Abstract
The utility model embodiment includes circuit board, radiator, electronic element assembly and transformer for electric installation.Radiator is set to circuit board, radiator includes mounting surface, mounting surface is equipped with the first electronic component and the second electronic component, electronic element assembly is arranged with mounting surface relative spacing to form the first air duct, at least one of first electronic component and the second electronic component are located at the first air duct, and electronic element assembly is between transformer and mounting surface.The utility model is by being reasonably laid out, specific air duct is formed using electronic element assembly and radiator itself, it is concentrated in limited air quantity to the heat dissipation of at least one of the first big electronic component of heat and the second electronic component is generated, the temperature of element is finally made to control in reasonable range.The utility model also provides a kind of microblogging cooking appliance using this for electric installation.
Description
Technical field
The utility model is related to household appliance technical fields more particularly to a kind of for electric installation and microwave cooking electric appliance.
Background technology
Just gradually becoming the new for electrical switching device of the micro-wave oven updating and upgrading of a product for electric installation, and is forming for electric installation
Electronic component it is more sensitive to temperature, excessively high temperature the functional reliability of electronic component can be caused to reduce and influence electronics member
The service life of part.In order to maintain the normal work of electronic component and ensure its service life, how to solve the heat dissipation of electronic component is
New problem.
Utility model content
The utility model provides a kind of for electric installation and microwave cooking electric appliance.
The utility model embodiment includes circuit board, radiator, electronic element assembly and transformer for electric installation.Institute
State radiator and be set to the circuit board, the radiator includes mounting surface, the mounting surface be equipped with the first electronic component with
Second electronic component, the electronic element assembly and the mounting surface relative spacing are arranged to form the first air duct, and described first
At least one of electronic component and second electronic component are located at first air duct, and the electronic element assembly is located at institute
It states between transformer and the mounting surface.
The utility model for electric installation by being reasonably laid out, utilize electronic element assembly and radiator itself to be formed special
Fixed air duct is concentrated in the first electronic component and the second electronic component big to heat is generated extremely in limited air quantity
A few heat dissipation, finally makes the temperature of element rise control in reasonable range.Further, it is also possible to which heat dissipation performance is relatively small
Radiator can meet the temperature increase requirement of element, can reduce the cost of radiator material in this way；Also relatively small wind is only needed
Amount can meet the temperature increase requirement of element, therefore can suitably reduce to the rotation speed of the fan dried for electric installation, to subtract
Small noise；Air duct is formed without other increase wind scooper, then eliminates the material cost of plastics wind scooper, while without giving
Different platform makes different wind scoopers, then can promote the standardization of products.
In some embodiments, first electronic component includes switching tube, and second electronic component includes rectification
Bridge.
In some embodiments, the electronic element assembly includes the third arranged according to first air duct airflow direction
Electronic component and the 4th electronic component, the third electronic component and the first electronic component relative spacing, the 4th electricity
Subcomponent and the second electronic component relative spacing.
In some embodiments, the third electronic component and the 4th electronic component are in strip, and described the
The length direction of three electronic components is tilted relative to the mounting surface, and the length direction of the 4th electronic component is parallel to described
Mounting surface.
In some embodiments, the electronic element assembly includes the 5th electronic component, and the 5th electronic component is extremely
Partially it is arranged with the mounting surface relative spacing, the 4th electronic component is located at the third electronic component and described the
Between five electronic components.
In some embodiments, the 5th electronic component and the 4th electronic component are generally within same straight line
On.
In some embodiments, the radiator includes radiating fin, and the radiating fin is relative to the mounting surface
Protrusion, the radiating fin are at least partially situated at the top of the electronic element assembly, the electronic element assembly and described
There is the part overlapped in orthographic projection of the radiating fin on the circuit board.
In some embodiments, described for electric installation includes the 6th electronic component being arranged in the circuit board, described
First air duct includes the first air inlet, and the 6th electronic component is located at first air inlet.
In some embodiments, the transformer includes primary side and primary side, the primary side and the primary side
It is respectively formed the second air duct and third air duct with the circuit board, second air duct is located at first air duct and the third
Between air duct.
In some embodiments, described for electric installation includes being arranged in the first diode of the circuit board and the two or two
Pole pipe, second air duct are formed with the second air inlet, and the third air duct is formed with third air inlet, first diode
Positioned at second air inlet, second diode is located at the third air inlet.
The microwave cooking electric appliance of the utility model embodiment, including described in any of the above-described embodiment for electric installation and
With the microwave generator being connect for electric installation.
The utility model embodiment is applicable to microwave cooking electric appliance for electric installation, promotes the mark of microwave cooking electric appliance
Standardization and the cost and operation noise for reducing microwave cooking electric appliance.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the stereoscopic schematic diagram for electric installation of the utility model embodiment.
Fig. 2 is the front view for electric installation of the utility model embodiment.
Fig. 3 is the vertical view for electric installation of the utility model embodiment.
Fig. 4 is the stereoscopic schematic diagram of the radiator of the utility model embodiment.
Fig. 5 is the stereoscopic schematic diagram of the microwave cooking electric appliance of the utility model embodiment.
Fig. 6 is the right view of the microwave cooking electric appliance of the utility model embodiment.
Fig. 7 is the rearview of the microwave cooking electric appliance of the utility model embodiment.
Main element symbol description：For electric installation 10, circuit board 11, radiator 12, mounting surface 122, radiating fin 124,
Electronic element assembly 13, third electronic component 132, the 4th electronic component 134, the 5th electronic component 136, transformer 14 are primary
Side 141, primary side 142, roll 143, the second air duct 144, the second air inlet 1442, third air duct 145, third air inlet
1452, the first electronic component 15, the second electronic component 16, the first air duct 17, the first sub-air channel 172, the second sub-air channel 174, the
One air inlet 176, the 6th electronic component 18, the first diode 19, the second diode 19a, microwave generator 20, cavity 30, wind
Fan motor 50, pallet 60, microwave cooking electric appliance 100, the relative dip angle α of third electronic component and mounting surface, electronic component
The orthographic projection B of component on circuit boards, the intersection C of the orthographic projection A, A and B of radiating fin on circuit boards.
Specific implementation mode
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as to this practicality
Novel limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Described convenient for description the utility model and simplifying, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for description purposes only, and is not understood to indicate or imply relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the interaction relationship of the connection or two elements inside two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Indicate that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example for the various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
It please join Fig. 1-Fig. 4, the utility model embodiment includes circuit board 11, radiator 12, electronics for electric installation 10
Component element 13 and transformer 14.Radiator 12 is set to circuit board 11, and radiator 12 includes mounting surface 122, on mounting surface 122
Equipped with the first electronic component 15 and the second electronic component 16, electronic element assembly 13 is arranged with 122 relative spacing of mounting surface with shape
At the first air duct 17, at least one of the first electronic component 15 and the second electronic component 16 are located at the first air duct 17, electronics member
Part component 13 is between transformer 14 and mounting surface 122.
It is above-mentioned for electric installation 10, by being reasonably laid out, utilize electronic element assembly 13 and radiator 12 itself to be formed special
Fixed air duct is concentrated in limited air quantity in the first electronic component 15 and the second electronic component 16 big to heat is generated
At least one heat dissipation, so that the temperature of element is risen control in reasonable range, the utility model can be with for electric installation 10
For frequency converter or electronic transformer etc. can be applied in microwave cooking electric appliance 100 for electric installation, be not particularly limited herein.
Specifically, transformer 14 is step-up transformer.At least one in first electronic component 15 and the second electronic component 16
It is a to be located at the first air duct 17 it is to be understood that the first electronic component 15 is located in the first air duct 17 or the second electronic component 16 is located at
In first air duct 17 or the first electronic component 15 and the second electronic component 16 are respectively positioned in the first air duct 17.In the implementation of diagram
In mode, the first electronic component 15 and the second electronic component 16 are all located in the first air duct 17, such first electronic component 15 with
Second electronic component 16 all can get preferable radiating and cooling effect.
In addition, radiator 12 is set on circuit board 11, the distance of so the two is closer, can generate circuit board 11
Heat timely shed, to further reduce influence of the heat to other electronic components that circuit board 11 generates.It can lead to
It crosses screw locking mode radiator 12 is fixedly installed on circuit board 11, such setting mode is simple, assembling easy to disassemble, and
Has higher stability.Further, it is also possible to which the temperature liter that the relatively small radiator 12 of heat dissipation performance can meet element is wanted
It asks, the cost of 12 material of radiator can be reduced in this way；Also only need relatively small air quantity that can meet the temperature of electronic component
It rises and requires, therefore can suitably reduce to the rotation speed of the fan dried for electric installation 10, to reduce fan noise；Without another
Outer increase wind scooper (not shown) forms air duct, then eliminates the material cost of plastics wind scooper, while without to different flat
Platform makes different wind scoopers, then can promote the standardization of products.
In some embodiments, the first electronic component 15 includes switching tube, and the second electronic component 16 includes rectifier bridge.
In one example, switching tube can be insulated gate bipolar transistor (Insulated Gate Bipolar
Transistor, IGBT), the compound full-control type being made of BJT (double pole triode) and MOS (insulating gate type field effect tube)
Voltage driven type power semiconductor has advantage of both high input impedance and low conduction voltage drop, is relatively suitble to application
In for electric installation 10.Rectifier bridge plays rectified action in for electric installation 10, has the features such as small, easy to use.First
Electronic component 15 and the second electronic component 16 are as the electronic component being widely used in for electric installation 10, relative to other electronics member
It is easier to generate heat for part, thus the first electronic component 15 and the second electronic component 16 is set to the mounting surface of radiator 12
On 122, the air quantity generated using fan is concentrated in the first air duct 17 as the first electronic component 15 and the second electronic component 16
Radiating and cooling has so reasonably been used for the space in electric installation 10, it is ensured that the first electronic component 15 and the second electronics member
The normal operation and service life of part 16.
In some embodiments, electronic element assembly 13 includes the third electronics arranged according to 17 airflow direction of the first air duct
Element 132 and the 4th electronic component 134,15 relative spacing of third electronic component 132 and the first electronic component, the 4th electronic component
134 and 16 relative spacing of the second electronic component.
It is appreciated that the direction of the first 17 airflow directions of air duct, that is, wind, third electronic component 132 and the 4th electronic component
134 are arranged along wind direction, and the first electronic component 15 and the second electronic component 16 are also arranged along wind direction, can be by the flowing of wind by third
Electronic component 132, the 4th electronic component 134, the first electronic component 15 and the second electronic component 16 heat take away, have preferably
Cooling and heat dissipation effect, and 15 relative spacing of third electronic component 132 and the first electronic component, the 4th electronic component 134 and
Two electronic components, 16 relative spacing can form more regular first air duct 17, and air-flow is made more to concentrate, and enhance cooling and heat dissipation effect
Fruit.When the first electronic component 15 includes IGBT and the second electronic component 16 includes rectifier bridge, the first electronic component 15 is along wind direction
It is arranged before the second electronic component 16 so that wind can give the first electronic component 15 to radiate first, ensure that the first electronic component
15 radiating requirements.In some instances, third electronic component 132 includes resonant capacitance, and the 4th electronic component 134 includes filtering
Capacitance.
In some embodiments, third electronic component 132 and the 4th electronic component 134 are in strip, third electronics
The length direction of element 132 is tilted relative to mounting surface 122, and the length direction of the 4th electronic component 134 is parallel to mounting surface
122。
More, third electronic component 132 and the 4th electronic component 134 are rectangle body, the wherein length of rectangular body
Facing towards the first electronic component 15 and the second electronic component 16, rectangular body have well-regulated shape and it is more smooth with it is longer flat
Face so can preferably be oriented to and pass through air-flow.The length direction of third electronic component 132 is tilted relative to mounting surface 122, but
Being worth noting is, it does not include the situation vertical with mounting surface 122 of third electronic component 132 to tilt, more, third electronics member
Part 132 and the relative dip angle α of mounting surface 122 are 30 ° -45 °, and the benefit being arranged in this way is to increase the first air duct 17
Inlet air angle can conduct more air quantity, and compression then, which is arranged in parallel, by 134 elongatedness direction of the 4th electronic component concentrates
Air-flow improves radiating and cooling effect.
In some embodiments, the first air duct 17 includes the first sub-air channel 172 and the second sub-air channel 174 of connection, the
One sub-air channel 172 is formed by third electronic component 132 and mounting surface 122, and the second sub-air channel 174 is by 134 He of the 4th electronic component
The formation of mounting surface 122, relative to second sub-air channel 174, the first sub-air channel 172 closer to the inlet side for electric installation 10,
First sub-air channel 172 is along air duct airflow direction in tapered structure (ginseng Fig. 3).
First air duct 17 is divided for the first sub-air channel 172 and the second sub-air channel 174, and respectively by corresponding third electronics member
132 element of part, the 4th electronic component 134 and the formation of mounting surface 122, so corresponding simple in structure, assembling enforcement difficulty is relatively low,
And make the composed structure in the first air duct 17 more flexible and changeable, and when coping with different internal structures for electric installation 10, tool
Standby more variable form and wind-guiding angle, the first sub-air channel 172 are in tapered structure, such inlet side along air duct airflow direction
That is the angle bigger of (side that i.e. air-flow enters), can import more air quantity, when entering the end of the first sub-air channel 172,
Then compressible and focused airflow enhances the intensity and speed of air-flow, improves cooling and heat dissipation efficiency.
In some embodiments, third electronic component 132 and the 4th electronic component 134 are at a distance from mounting surface 122
8mm-15mm。
It is appreciated that third electronic component 132 and the 4th electronic component 134 can be 8mm at a distance from mounting surface 122,
Any number between 15mm or 8-15mm.In this way, both having ensured the compactedness for 10 internal structure of electric installation, is also ensured
The wind-guiding area in one air duct 17 is so that it is guaranteed that wind-guiding amount, has preferable cooling and heat dissipation effect.
In some embodiments, electronic element assembly 13 include the 5th electronic component 136, the 5th electronic component 136 to
Partially it is arranged with 122 relative spacing of mounting surface, the 4th electronic component 134 is located at third electronic component 132 and the 5th electronics
Between element 136.
5th electronic component 136 is arranged with 122 relative spacing of mounting surface it is to be understood that the 5th electronics is first at least partly
Part 136 can partly or entirely with 122 relative spacing of mounting surface, it will be understood that between the 5th electronic component 136 and mounting surface 122
It is also formed with the first air duct 17, both can also be formed more regular orderly electronic element assembly by the cooling-down effect of air-flow
13, third electronic component 132, the 4th electronic component 134 are arranged with the 5th electronic component 136 by 17 air intake vent of the first air duct successively
Row, the electronic component that so will be easier to fever are set to the stronger position of air quantity, can play preferable heat dissipation effect.
In some embodiments, the 5th electronic component 136 includes differential mode inductance.
Differential mode inductance has that firm, inexpensive, frequency characteristic is excellent, has the advantages that good attenuation characteristic, low magnetism leakage,
It good can be suitable in electric installation 10.
In some embodiments, the 5th electronic component 136 and the 4th electronic component 134 are generally on same straight line.
So, it can be ensured that the rule for being formed by the first air duct 17 is smooth, improves the space availability ratio for electric installation 10, subtracts
The waste of material of few constituent element, and reduce loss of air-flow when by the 5th electronic component 136 and four electronic components 134
And loss, ensure the intensity of air-flow to ensure cooling and heat dissipation efficiency.
In some embodiments, radiator 12 includes radiating fin 124, and radiating fin 124 is convex relative to mounting surface 122
Go out, radiating fin 124 is at least partially situated at the top of electronic element assembly 13, and electronic element assembly 13 is on circuit board 11
There is the part C overlapped in the orthographic projection A of orthographic projection B and radiating fin 124 on circuit board 11.
In this way, radiating fin 124 and electronic element assembly 13 can make the first air duct 17 form more closed air duct, reduce
Wind loss, improves the heat dissipation effect of the first electronic component 15 and the second electronic component 16.
Specifically, radiating fin 124 increases the heat dissipation area of radiator 12, improves the radiating efficiency of radiator 12,
More, radiating fin 124 is sheet, so corresponding with the first air duct 17 can have longer radiating surface, certainly, radiating fin
124 shape is not limited to sheet, can be specifically chosen in actual implementation.Electronic element assembly 13 is with radiating fin 124 in circuit
There is the part overlapped in the orthographic projection on plate 11, i.e., on the direction for being parallel to circuit board 11, radiating fin 124, which can block, to be covered
For electronic element assembly 13 under radiating fin 124, such radiating fin 124 can limit the flowing of air-flow in the first air duct 17
It is interior, more strict first air duct, 17 structure is formed, it is final to improve cooling and heat dissipation effect to enhance the intensity of air-flow.
In some embodiments, include the 6th electronic component 18 being arranged in circuit board 11, the first wind for electric installation 10
Road 17 includes the first air inlet 176, and the 6th electronic component 18 is located at the first air inlet 176.
6th electronic component 18 includes resistance alloys, and resistance alloys is a kind of resistance using alloy as electric current medium, tool
Have low resistance, high-accuracy, low-temperature coefficient, impact resistance electric current, it is high-power the features such as.For in electric installation 10, the 6th electronic component
18 are mainly used for sampling current, the electric current for changing in feedback circuit, further to control or influence the variation of electric current,
It can influence the output power stability for electric installation 10 if the temperature of the 6th electronic component 18 is too high, thus by the 6th electronics
Element 18 is set to first air inlet 176 in the first air duct 17, is effectively 18 radiating and cooling of the 6th electronic component, is protected with controlling
Hold the operation is stable for electric installation 10.
In some embodiments, transformer 14 includes primary side 141 and primary side 142, primary side 141 and primary side
142 are respectively formed the second air duct 144 and third air duct 145 with circuit board 11, and the second air duct 144 is located at the first air duct 17 and third
Between air duct 145.
Specifically, transformer 14 further includes roll 143, primary side 141 and primary side 142 separated by roll 143 and
At after transformer 14 is set to circuit board 11, a lateral extent of roll 143 close to circuit board 11 can be 20mm, 25mm
Or any number between 20-25mm.In this way, after 143 coiling of roll complete copper wire, roll 143 is close to circuit board 11
Vacant distance can be 10mm between side and circuit board 11, and any number between 15mm or 10-15mm passes through what is left in advance
Space, and form the second air duct 144 and third air duct 145, the second air duct 144 and third by means of the structure of transformer 14 itself
Air duct 145 can be the copper wire radiating and cooling of institute's coiling in primary side 141 and primary side 142, be thusly-formed three for electric installation 10
Air channel structure, to improve for the whole radiating and cooling effect of electric installation 10.Distance range mentioned above, shows for the utility model
Example, has higher assembling implementation result and radiating and cooling efficiency, is not particularly limited, can be specifically chosen in specific implementation.
In some embodiments, include being arranged in the first diode 19 of circuit board 11 and the two or two pole for electric installation 10
Pipe 19a, the second air duct 144 are formed with the second air inlet 1442, and third air duct 145 is formed with third air inlet the 1452, the 1st
Pole pipe 19 is located at the second air inlet 1442, and the second diode 19a is located at third air inlet 1452.
First diode 19 the second air inlet 1442 corresponding with the second diode 19a is arranged with third air inlet 1452, can
Play corresponding effective cooling-down effect, and have specific position relationship, simplify the internal structure for electric installation 10, have compared with
Good space layout, improves the space availability ratio for electric installation 10, contributes to for the integrated of electric installation 10 and minimizes, into
One step realizes the integrated of microwave cooking electric appliance 100 and miniaturization, reduces the waste of material, cost-effective.
In some embodiments, the first diode 19 and the second diode 19a are high-voltage diode, the first diode 19
It is 10mm-15mm at a distance from the ontology and circuit board 11 of the second diode 19a.
It is appreciated that the tube body of ontology, that is, diode of the first diode 19 and the second diode 19a, the first diode 19
The second air duct corresponding with the second diode 19a 144 is arranged with third air duct 145, and distance mentioned above can be 10mm,
Any number between 15mm or 10-15mm specifically determines by the distance after 143 coiling copper wire of roll, so contribute to for
The carry out radiating and cooling of first diode 19 and the second main heating parts of diode 19a, improves the effect of heat dissipation.
The microwave cooking electric appliance 100 of the utility model embodiment, including any of the above-described embodiment for electric installation 10
With the microwave generator 20 being connect with for electric installation 10.
The microwave cooking electric appliance 100 of the utility model utilizes electronic element assembly 13 and radiator by being reasonably laid out
12 itself form specific air duct, and first electronic component 15 and second big to heat is generated is concentrated in limited air quantity
At least one of electronic component 16 radiates, and so that the temperature of element is risen control in reasonable range, is answered when for electric installation 10
When with to microwave cooking electric appliance 100, the load of radiator fan can be reduced by effectively cooling down to electronic component, reduce noise, and
Economy can be improved in the integrated use with 12 material of size and radiator that can reduce circuit board 11 for electric installation 10 of miniaturization
Benefit reduces production cost.
Fig. 5-7 is please referred to, in some embodiments, microwave cooking device 100 further includes cavity 30, door body (not shown)
With fan 50.Pallet 60 is equipped in cavity 30, for pallet 60 for placing food to be heated, door body is rotatably arranged in cavity 30
Front, be used to open or close the opening of cavity 30, microwave generator 20 and the outside that cavity 30 is mounted on for electric installation 10
And it is set to the blowing direction of fan 50.When microwave cooking electric appliance 100 works, provided to microwave generator 20 for electric installation 10
Operating current, microwave generator 20 generate the microwave energy for food in heating cavity 30.Meanwhile fan 50 can absorb and comes from
Extraneous air, and air-flow is formed, air-flow may pass through air duct and be conducted for electric installation 10 is interior, and to cooling down for electric installation 10
Heat dissipation, after cooling is for electric installation 10, air-flow can be expelled to out of for electric installation 10 outside microwave cooking electric appliance 100 again.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation
In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, those skilled in the art can manage
Solution：A variety of to the progress of these embodiments can change in the case where not departing from the principles of the present invention and objective, change,
It replaces and modification, the scope of the utility model is limited by claim and its equivalent.
Claims (11)
1. a kind of for electric installation, which is characterized in that including:
Circuit board；
Radiator, the radiator are set to the circuit board, and the radiator includes mounting surface, and the mounting surface is equipped with the
One electronic component and the second electronic component；
The electronic element assembly and transformer being located on the circuit board, between the electronic element assembly is opposite with the mounting surface
Every setting to form the first air duct, at least one of first electronic component and second electronic component are located at described the
One air duct, the electronic element assembly is between the transformer and the mounting surface.
2. as described in claim 1 for electric installation, which is characterized in that first electronic component includes switching tube, and described
Two electronic components include rectifier bridge.
3. as described in claim 1 for electric installation, which is characterized in that the electronic element assembly includes according to first air duct
The third electronic component and the 4th electronic component of airflow direction arrangement, the third electronic component and the first electronic component phase
To interval, the 4th electronic component and the second electronic component relative spacing.
4. as claimed in claim 3 for electric installation, which is characterized in that the third electronic component and the 4th electronic component
It is in strip, the length direction of the third electronic component is tilted relative to the mounting surface, the 4th electronic component
Length direction is parallel to the mounting surface.
5. as claimed in claim 3 for electric installation, which is characterized in that the electronic element assembly includes the 5th electronic component,
5th electronic component is arranged with the mounting surface relative spacing at least partly, and the 4th electronic component is located at described the
Between three electronic components and the 5th electronic component.
6. as claimed in claim 5 for electric installation, which is characterized in that the 5th electronic component and the 4th electronic component
Generally on same straight line.
7. as described in claim 1 for electric installation, which is characterized in that the radiator includes radiating fin, the heat radiating fin
Piece is protruded relative to the mounting surface, and the radiating fin is at least partially situated at the top of the electronic element assembly, described
There is the part overlapped in the orthographic projection of electronic element assembly and the radiating fin on the circuit board.
8. as described in claim 1 for electric installation, which is characterized in that described for electric installation includes being arranged in the circuit board
6th electronic component, first air duct include the first air inlet, and the 6th electronic component is located at first air inlet.
9. as described in claim 1 for electric installation, which is characterized in that the transformer includes primary side and primary side, described
Primary side and the primary side are respectively formed the second air duct and third air duct with the circuit board, and second air duct is located at described
Between first air duct and the third air duct.
10. as claimed in claim 9 for electric installation, which is characterized in that it is described for electric installation include be arranged in the circuit board
The first diode and the second diode, second air duct is formed with the second air inlet, and the third air duct is formed with third
Air inlet, first diode are located at second air inlet, and second diode is located at the third air inlet.
11. a kind of microwave cooking electric appliance, which is characterized in that including claim 1-10 any one of them for electric installation；With
With the microwave generator being connect for electric installation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617477.8U CN208095035U (en) | 2018-04-26 | 2018-04-26 | For electric installation and microwave cooking electric appliance |
| PCT/CN2018/117012 WO2019205610A1 (en) | 2018-04-26 | 2018-11-22 | Heat dissipation device, power supply device, and electric microwave cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617477.8U CN208095035U (en) | 2018-04-26 | 2018-04-26 | For electric installation and microwave cooking electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208095035U true CN208095035U (en) | 2018-11-13 |
Family
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| CN201820617477.8U Active CN208095035U (en) | 2018-04-26 | 2018-04-26 | For electric installation and microwave cooking electric appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108323135A (en) * | 2018-04-26 | 2018-07-24 | 广东美的厨房电器制造有限公司 | For electric installation and microwave cooking electric appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108323135A (en) * | 2018-04-26 | 2018-07-24 | 广东美的厨房电器制造有限公司 | For electric installation and microwave cooking electric appliance |
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