CN205690456U - Microwave oven - Google Patents
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- CN205690456U CN205690456U CN201620472859.7U CN201620472859U CN205690456U CN 205690456 U CN205690456 U CN 205690456U CN 201620472859 U CN201620472859 U CN 201620472859U CN 205690456 U CN205690456 U CN 205690456U
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Abstract
This utility model provides a kind of microwave oven, including: casing, multiple electrical part, wind scooper and cooling blower；Electric apparatus room it is provided with in casing；Multiple electrical parts are arranged in electric apparatus room；Wind scooper is arranged in electric apparatus room, and covers on multiple electrical part, and wind scooper has air inlet and air outlet, and air outlet is arranged on the outer housing of casing；Cooling blower is arranged in electric apparatus room, and is positioned at air inlet, for blowing in wind scooper.The microwave oven that this utility model provides, by being provided with wind scooper in the electric apparatus room of microwave oven, and cooling blower is arranged on the air inlet of wind scooper, avoid cooling wind to run into electrical part and run helter-skelter, so that cooling wind energy is the most all by wind scooper and flow out, it is ensured that can be sufficiently cool to the some electrical part in wind scooper, decrease the wind loss of ducting system simultaneously, further ensure the cooling effect to the some electrical part in wind scooper, thus improve the competitiveness of product in market.
Description
Technical field
This utility model relates to kitchen appliance field, in particular to a kind of microwave oven.
Background technology
At present, the microwave oven in correlation technique, its Duct design is as it is shown in figure 1, be typically all by blower fan 20 ' cold wind
Blowing to electrical part 10 ', when electrical part 10 ', cold wind and electrical part 10 ' carry out heat exchange, reduce the temperature of electrical part 10 '
Degree, prevents electrical part 10 ' temperature in the course of the work too high and affects its service life；Meanwhile, in order to prevent distinguished and admirable confusion,
The both sides of air intake with blowing are separated by wind isolation board 30 '；But the cooling wind produced by boasting from blower fan 20 ', understands in flow process,
Run into the stop of electrical part 10 ', cause wind vector, so that the air quantity blowing to electrical part 10 ' reduces, thus greatly reduce
The cooling effect of electrical part 10 ', causes the inefficiency of product, is not easy to user and uses.
Utility model content
In order to solve at least one above-mentioned technical problem, the purpose of this utility model is to provide a kind of microwave oven.
In view of this, this utility model provides a kind of microwave oven, including: casing, it is provided with electric apparatus room in described casing；
Multiple electrical parts, multiple described electrical parts are arranged in described electric apparatus room；Wind scooper, described wind scooper is arranged on described electric apparatus room
In, and cover on multiple described electrical part, and described wind scooper has air inlet and air outlet, described air outlet is arranged on described
On the outer housing of casing；And cooling blower, described cooling blower is arranged in described electric apparatus room, and is positioned at described air inlet, uses
In blowing in described wind scooper.
The microwave oven that this utility model provides, by being provided with wind scooper, and cooling blower in the electric apparatus room of microwave oven
It is arranged on the air inlet of wind scooper, it is to avoid cooling wind runs into electrical part and runs helter-skelter, so that cooling wind energy the most all passes through wind-guiding
Covering and flow out, it is ensured that can be sufficiently cool to the some electrical part in wind scooper, the air quantity simultaneously decreasing ducting system damages
Lose, further ensure the cooling effect to the some electrical part in wind scooper, thus improve the competitiveness of product in market.
Specifically, the microwave oven in correlation technique, the cooling wind produced by boasting in its air channel, can run in flow process
The stop of electrical part, wind vector, and cause the air quantity blowing to electrical part less, need just can ensure that the cool time lengthened
Cooling effect, is not easy to cool down electrical part；And the microwave oven that this utility model provides, it is provided with in the electric apparatus room of microwave oven
Wind scooper, guides the cooling wind of cooling blower blowout, and cooling blower is arranged on the air inlet of wind scooper, so that cold
But wind energy is the most all by wind scooper and flow out, it is ensured that can be sufficiently cool to the electrical part in wind scooper, extends electrical equipment
In the service life of part, simultaneously, it is thus also avoided that cooling wind runs into electrical part and runs helter-skelter, thus decrease cooling wind in cooling electrical part mistake
Loss in journey, further increases the electrical part cooling effect in wind scooper, extends the service life of electrical part, thus
Improve the competitiveness of product in market.
It addition, the microwave oven in above-described embodiment of providing of this utility model can also have a following additional technical feature:
In technique scheme, the height of the described air inlet end of described wind scooper goes out more than described in described wind scooper
The height of air port end.
In this technical scheme, the height of wind scooper air inlet, more than the height at air outlet, makes from wind scooper air intake
The air that mouth enters can successfully flow along wind scooper, then flows out from the air outlet of wind scooper, it is ensured that air is being led
The unimpeded performance of flowing in fan housing, thus improve the air-out efficiency of product, it addition, the height of air opening end is relatively low, add
The resistance that cooling wind blows out from air outlet, thus add the air holdup time at wind scooper, and then ensure that electrical part
Cooling effect.
In any of the above-described technical scheme, described wind scooper includes: radiating part, and described radiating part covers on the plurality of electrical equipment
On part, one end of described radiating part is provided with described cooling blower；And diversion division, one end of described diversion division and described radiating part
The other end connect, the other end is provided with described air outlet, for by described air derive described casing；Wherein, described heat radiation
The height in portion is more than the height of described diversion division.
In this technical scheme, radiating part is connected with cooling blower, and it is cold to its interior electrical part that air enters wind scooper
But, diversion division is connected with air outlet with radiating part respectively, it is possible to the air of radiating part is carried out water conservancy diversion, so that its interior air is complete
Portion is flowed out by wind scooper, and the height of radiating part is more than the height of diversion division, on the one hand, radiating part higher, improves sky
The flow rate of gas, it is possible to make whole electrical parts all be arrived by wind, it is ensured that the cooling effect to electrical part, on the other hand,
Diversion division relatively low, adds the resistance that cooling wind blows out from air outlet, thus adds the air holdup time at wind scooper,
And then ensure that the cooling effect to electrical part.
In any of the above-described technical scheme, transition part, described transition part are set between described radiating part and described diversion division
One end be connected with described radiating part, the other end is connected with described diversion division, and the height of described transition part by one end to another
End is gradually lowered.
In this technical scheme, the setting of transition part, air is played guide functions, reduces air to a certain extent
Noise when flowing in wind scooper, improves comfort level when user uses product, and the height of transition part by one end to separately
One end is gradually lowered, and improves air flow rate in wind scooper, the most correspondingly improves the work efficiency of product.
In any of the above-described technical scheme, described radiating part, described diversion division and described transition part are integral type structure.
In this technical scheme, radiating part, diversion division and transition part are integral type structure, on the one hand, ensure that radiating part,
Bonding strength between diversion division and transition part three, greatly reduces three and the probability of fracture occurs, it is ensured that wind scooper is whole
The dependability of body；On the other hand, integral structure is easy to processing, enormously simplify the manufacturing step of wind scooper, from
And improve the production efficiency of product.
In any of the above-described technical scheme, described wind scooper includes multiple described radiating part, a described transition part and
Individual described diversion division.
In this technical scheme, wind scooper includes multiple radiating part, a transition part and a diversion division, multiple radiating parts
Setting, add area of dissipation, improve the radiating efficiency of wind scooper, i.e. improve ducting system in microwave oven cooling effect
Really, and a transition part and the setting of a diversion division, reduce the production cost of wind scooper the most to a certain extent, thus carry
The high competitiveness of product in market.
In any of the above-described technical scheme, the height of described wind scooper by described air inlet end to the height of described air opening end
Degree is gradually reduced.
In this technical scheme, the height of wind scooper is gradually reduced to the height of air opening end by air inlet end, makes wind-guiding
Air in cover successfully can flow along the inwall of wind scooper, it is to avoid wind scooper inwall stops that the situation of air flowing is sent out
Raw, improve air flow rate and efficiency, further increase the work efficiency of product, it addition, the height of air opening end is relatively
Low, add the resistance that cooling wind blows out from air outlet, thus add the air holdup time at wind scooper, and then ensure that
Cooling effect to electrical part.
In any of the above-described technical scheme, described microwave oven also includes: thermal insulation board, and described thermal insulation board is arranged on described electrical equipment
Indoor, and multiple described electrical part is arranged on described thermal insulation board.
In this technical scheme, microwave oven also includes that thermal insulation board, multiple electrical parts are arranged on thermal insulation board, it is to avoid casing
Cooking cavity in the heat impact on electrical part, it is ensured that the safety in utilization of product and reliability, thus improve product
The market competitiveness.
In any of the above-described technical scheme, described thermal insulation board arranging multiple reinforcement projection, described electrical part is arranged on institute
State in reinforcement projection.
In this technical scheme, thermal insulation board is provided with multiple projection of strengthening, and multiple electrical part is arranged on reinforcement projection
On, not only ensure that the fixing intensity of thermal insulation board self, also improve the bonding strength of multiple electrical part, thus improve product
Dependability, and then add the competitiveness of product in market.
In any of the above-described technical scheme, described cooling blower is centrifugal blower.
In this technical scheme, cooling blower is centrifugal blower, and the ventilation effectiveness comparison of centrifugal blower is good, extraction sky
The efficiency of gas is higher, and operates steadily, and noise is less, improves comfort level when user uses this product, thus adds product
The market competitiveness of product.
Additional aspect of the present utility model and advantage will become obvious in following description part, or new by this practicality
The practice of type is recognized.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment
Become obvious and easy to understand, wherein:
Fig. 1 is the partial structurtes schematic diagram of microwave oven described in correlation technique；
Fig. 2 is the partial structurtes schematic diagram of microwave oven described in the utility model；
Fig. 3 is the structural representation that this utility model thermal insulation board, electrical part and wind scooper coordinate；
Fig. 4 is the broken section structural representation of structure shown in Fig. 3.
Wherein, in Fig. 1, corresponding relation between reference and component names is:
10 ' electrical parts, 20 ' blower fans, 30 ' wind isolation boards；
In Fig. 2 to Fig. 4, the corresponding relation between reference and component names is:
10 casings, 11 electric apparatus rooms, 20 electrical parts, 30 wind scoopers, 31 air inlets, 32 air outlets, 33 radiating parts, 34 water conservancy diversion
Portion, 35 transition parts, 40 cooling blowers, 50 thermal insulation boards；
Wherein, figure hollow core arrow represents the flow direction of air.
Detailed description of the invention
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
This utility model is further described in detail by body embodiment.It should be noted that in the case of not conflicting, this Shen
Feature in embodiment please and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but, this practicality
Novel can implement to use other to be different from other modes described here, therefore, protection domain of the present utility model is also
Do not limited by following public specific embodiment.
The microwave oven provided according to some embodiments of this utility model is described referring to Fig. 2 to Fig. 4.
As shown in Figures 2 to 4, the microwave oven that this utility model provides, including: casing 10, multiple electrical part 20, wind scooper
30 and cooling blower 40.
Specifically, it is provided with electric apparatus room 11 in casing 10；Multiple electrical parts 20 are arranged in electric apparatus room 11；Wind scooper 30 sets
Put in electric apparatus room 11, and cover on multiple electrical part 20, and wind scooper 30 has air inlet 31 and air outlet 32, air outlet 32
It is arranged on the outer housing of casing 10；Cooling blower 40 is arranged in electric apparatus room 11, and is positioned at air inlet 31, for wind scooper
Air-supply in 30.
The microwave oven that this utility model provides, is provided with wind scooper 30, to cooling blower in the electric apparatus room 11 of microwave oven
The cooling wind of 40 blowouts guides, and cooling blower 40 is arranged at the air inlet 31 of wind scooper 30, so that cooling wind energy is enough
All by wind scooper 30 and flow out, it is ensured that can be sufficiently cool to the electrical part 20 in wind scooper 30, extend electrical part
In the service life of 20, simultaneously, it is thus also avoided that cooling wind runs into electrical part 20 and runs helter-skelter, thus the air quantity decreasing ducting system damages
Lose, further increase electrical part 20 cooling effect in wind scooper 30, extend the service life of electrical part 20, thus carry
The high competitiveness of product in market.
In an embodiment of the present utility model, as shown in Figures 2 to 4, the height of air inlet 31 end of wind scooper 30
Height more than air outlet 32 end of wind scooper 30.
In this embodiment, the height at wind scooper 30 air inlet 31, more than the height at air outlet 32, makes from wind scooper
The air that 30 air inlets 31 enter can successfully flow along wind scooper 30, then flows out from the air outlet 32 of wind scooper 30,
Ensure that the unimpeded performance that air flows in wind scooper 30, thus improve the air-out efficiency of product, it addition, air opening end
The most relatively low, add the resistance that cooling wind blows out from air outlet, thus add the air holdup time at wind scooper 30, enter
And ensure that the cooling effect to electrical part 20.
In an embodiment of the present utility model, as shown in Figures 2 to 4, wind scooper 30 includes: radiating part 33 and water conservancy diversion
Portion 34.
Specifically, radiating part 33 covers on multiple electrical part, and one end of radiating part 33 is provided with cooling blower 40；Diversion division
One end of 34 is connected with the other end of radiating part 33, and the other end is provided with air outlet 32, for air is derived casing 10；Its
In, the height of radiating part 33 is more than the height of diversion division 34.
In this embodiment, radiating part 33 is connected with cooling blower 40, and air enters wind scooper 30 to its interior electrical equipment
Part 20 cools down, and diversion division 34 is connected with air outlet 32 with radiating part 33 respectively, it is possible to the air of radiating part 33 is carried out water conservancy diversion, with
Make its interior air all be flowed out by wind scooper 30, and the height of radiating part 33 is more than the height of diversion division 34, on the one hand, dissipate
Hot portion higher, improves the flow rate of air, it is possible to make whole electrical parts 20 all be arrived by wind, it is ensured that to electrical part
The cooling effect of 20, on the other hand, diversion division 34 relatively low, add the resistance that cooling wind blows out from air outlet, thus increase
Air holdup time at wind scooper 30, and then ensure that the cooling effect to electrical part.
In an embodiment of the present utility model, as shown in Figures 2 to 4, arrange between radiating part 33 and diversion division 34
Transition part 35, one end of transition part 35 is connected with radiating part 33, and the other end is connected with diversion division 34, and the height of transition part 35 by
One end is gradually lowered to the other end.
In this embodiment, the setting of transition part 35, air is played guide functions, reduces air to a certain extent
Noise during flowing in wind scooper 30, improves comfort level when user uses product, and the height of transition part 35 is by one end
It is gradually lowered to the other end, improves air flow rate in wind scooper 30, the most correspondingly improve the work effect of product
Rate.
In an embodiment of the present utility model, as shown in Figures 2 to 4, radiating part 33, diversion division 34 and transition part 35
For integral type structure.
In this embodiment, radiating part 33, diversion division 34 are integral type structure with transition part 35, on the one hand, ensure that scattered
Bonding strength between hot portion 33, diversion division 34 and transition part 35 three, greatly reduces three and the probability of fracture occurs, it is ensured that
The dependability of wind scooper 30 entirety；On the other hand, integral structure is easy to processing, enormously simplify the life of wind scooper 30
Produce manufacturing step, thus improve the production efficiency of product.
In an embodiment of the present utility model, wind scooper 30 includes 33, transition part 35 and of multiple radiating parts
Individual diversion division 34.
In this embodiment, wind scooper 30 includes 33, transition part 35 of multiple radiating parts and a diversion division 34, multiple
The setting of radiating part 33, adds area of dissipation, improves the radiating efficiency of wind scooper 30, i.e. improves air channel system in microwave oven
The cooling effect of system, and a transition part 35 and the setting of a diversion division 34, reduce wind scooper 30 the most to a certain extent
Production cost, thus improve the competitiveness of product in market.
In an embodiment of the present utility model, as shown in Figures 2 to 4, the height of wind scooper 30 is by air inlet 31 end
Height to air outlet 32 end is gradually reduced.
In this embodiment, the height of wind scooper 30 is gradually reduced to the height of air outlet 32 end by air inlet 31 end, makes
Air in wind scooper 30 successfully can flow along the inwall of wind scooper 30, it is to avoid wind scooper 30 inwall stops air stream
Dynamic situation occurs, and improves air flow rate and efficiency, further increases the work efficiency of product, it addition, air outlet
The height of end is relatively low, adds the resistance that cooling wind blows out from air outlet, thus adds air when the delay of wind scooper 30
Between, and then ensure that the cooling effect to electrical part 20.
In an embodiment of the present utility model, as shown in Figures 2 to 4, microwave oven also includes thermal insulation board 50.
Specifically, thermal insulation board 50 is arranged in electric apparatus room 11, and multiple electrical part 20 is arranged on thermal insulation board 50.
In this embodiment, microwave oven also includes that thermal insulation board 50, multiple electrical parts 20 are arranged on thermal insulation board 50, it is to avoid
The heat in the cooking cavity of the casing impact on electrical part 20, it is ensured that the safety in utilization of product and reliability, thus improve
The competitiveness of product in market.
In an embodiment of the present utility model, as shown in Figures 2 to 4, thermal insulation board 50 arranges multiple reinforcement projection,
Electrical part 20 is arranged in reinforcement projection.
In this embodiment, thermal insulation board 50 is provided with multiple strengthen projection, and multiple electrical part 20 be arranged on reinforcement convex
On Qiing, not only ensure that the fixing intensity of thermal insulation board 50 self, also improve the bonding strength of multiple electrical part 20, thus improve
The dependability of product, and then add the competitiveness of product in market.
In an embodiment of the present utility model, cooling blower 40 is centrifugal blower.
In this embodiment, cooling blower 40 is centrifugal blower, and the ventilation effectiveness comparison of centrifugal blower is good, extraction sky
The efficiency of gas is higher, and operates steadily, and noise is less, improves comfort level when user uses this product, thus adds product
The market competitiveness of product.
For to sum up, the microwave oven that this utility model provides, by being provided with wind scooper in the electric apparatus room of microwave oven, and
Cooling blower is arranged on the air inlet of wind scooper, it is to avoid cooling wind runs into electrical part and runs helter-skelter, so that cooling wind energy is whole
By wind scooper and flow out, it is ensured that can be sufficiently cool to the some electrical part in wind scooper, decrease ducting system simultaneously
Wind loss, further ensure the cooling effect to the some electrical part in wind scooper, thus the market that improve product is competing
Strive power.
Specifically, the microwave oven in correlation technique, the cooling wind produced by boasting in its air channel, can run in flow process
The stop of electrical part, wind vector, and cause the air quantity blowing to electrical part less, need just can ensure that the cool time lengthened
Cooling effect, is not easy to cool down electrical part；And the microwave oven that this utility model provides, it is provided with in the electric apparatus room of microwave oven
Wind scooper, guides the cooling wind of cooling blower blowout, and cooling blower is arranged on the air inlet of wind scooper, so that cold
But wind energy is the most all by wind scooper and flow out, it is ensured that can be sufficiently cool to the electrical part in wind scooper, extends electrical equipment
In the service life of part, simultaneously, it is thus also avoided that cooling wind runs into electrical part and runs helter-skelter, thus decrease cooling wind in cooling electrical part mistake
Loss in journey, further increases the electrical part cooling effect in wind scooper, extends the service life of electrical part, thus
Improve the competitiveness of product in market.
In this utility model, term " multiple " then refers to two or more, unless otherwise clear and definite restriction.Term
" install ", " being connected ", " connection ", the term such as " fixing " all should be interpreted broadly, and such as, " connection " can be fixing connection, also
Can be to removably connect, or be integrally connected；" being connected " can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even.For the ordinary skill in the art, can understand that above-mentioned term is in this utility model as the case may be
Concrete meaning.
In the description of this specification, the description of term " embodiment ", " some embodiments " etc. means to combine this reality
Specific features, structure, material or the feature of executing example or example description are contained at least one embodiment of the present utility model or show
In example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And,
Specific features, structure, material or the feature described can be with suitably side in any one or more embodiments or example
Formula combines.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a microwave oven, it is characterised in that including:
Casing, is provided with electric apparatus room in described casing；
Multiple electrical parts, multiple described electrical parts are arranged in described electric apparatus room；
Wind scooper, described wind scooper is arranged in described electric apparatus room, and covers on multiple described electrical part, and described wind scooper tool
Air inlet and air outlet, described air outlet is had to be arranged on the outer housing of described casing；With
Cooling blower, described cooling blower is arranged in described electric apparatus room, and is positioned at described air inlet, for described wind-guiding
Air-supply in cover.
Microwave oven the most according to claim 1, it is characterised in that
The height of the described air inlet end of described wind scooper is more than the height of the described air opening end of described wind scooper.
Microwave oven the most according to claim 2, it is characterised in that described wind scooper includes:
Radiating part, described radiating part covers on the plurality of electrical part, and one end of described radiating part is provided with described cooling blower；
With
Diversion division, one end of described diversion division is connected with the other end of described radiating part, and the other end is provided with described air outlet, uses
In air being derived described casing；
Wherein, the height of described radiating part is more than the height of described diversion division.
Microwave oven the most according to claim 3, it is characterised in that
Arranging transition part between described radiating part and described diversion division, one end of described transition part is connected with described radiating part, separately
One end is connected with described diversion division, and the height of described transition part is gradually lowered to the other end by one end.
Microwave oven the most according to claim 4, it is characterised in that
Described radiating part, described diversion division and described transition part are integral type structure.
Microwave oven the most according to claim 4, it is characterised in that
Described wind scooper includes multiple described radiating part, a described transition part and a described diversion division.
Microwave oven the most according to claim 2, it is characterised in that
The height of described wind scooper is gradually reduced to the height of described air opening end by described air inlet end.
Microwave oven the most according to any one of claim 1 to 7, it is characterised in that also include:
Thermal insulation board, described thermal insulation board is arranged in described electric apparatus room, and multiple described electrical part is arranged on described thermal insulation board.
Microwave oven the most according to claim 8, it is characterised in that
Arranging multiple reinforcement projection on described thermal insulation board, described electrical part is arranged in described reinforcement projection.
Microwave oven the most according to any one of claim 1 to 7, it is characterised in that
Described cooling blower is centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472859.7U CN205690456U (en) | 2016-05-20 | 2016-05-20 | Microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472859.7U CN205690456U (en) | 2016-05-20 | 2016-05-20 | Microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205690456U true CN205690456U (en) | 2016-11-16 |
Family
ID=57262719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620472859.7U Active CN205690456U (en) | 2016-05-20 | 2016-05-20 | Microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205690456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561911A (en) * | 2018-03-08 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Air flow duct and micro-wave oven |
| CN110972454A (en) * | 2019-12-16 | 2020-04-07 | 广东美的厨房电器制造有限公司 | Frequency converter heat radiation structure and heating furnace |
-
2016
- 2016-05-20 CN CN201620472859.7U patent/CN205690456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561911A (en) * | 2018-03-08 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Air flow duct and micro-wave oven |
| CN110972454A (en) * | 2019-12-16 | 2020-04-07 | 广东美的厨房电器制造有限公司 | Frequency converter heat radiation structure and heating furnace |
| CN110972454B (en) * | 2019-12-16 | 2021-10-26 | 广东美的厨房电器制造有限公司 | Frequency converter heat radiation structure and heating furnace |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |