CN201448891U - Microwave oven with a heat exchanger - Google Patents
Microwave oven with a heat exchanger Download PDFInfo
- Publication number
- CN201448891U CN201448891U CN200920056906XU CN200920056906U CN201448891U CN 201448891 U CN201448891 U CN 201448891U CN 200920056906X U CN200920056906X U CN 200920056906XU CN 200920056906 U CN200920056906 U CN 200920056906U CN 201448891 U CN201448891 U CN 201448891U
- Authority
- CN
- China
- Prior art keywords
- cooling fan
- fan motor
- relay
- interlocking switch
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
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- Constitution Of High-Frequency Heating (AREA)
Abstract
A microwave oven comprises a primary interlocking switch, a high-voltage circuit, a cooling fan motor and a control component, wherein the high-voltage circuit and the primary interlocking switch are connected in series and then connected to two ends of a power supply, and a loop in which the cooling fan motor is located is directly connected to two ends of the power supply. The control part comprises a first relay and a second relay, the first relay is connected in series in a loop formed by the high-voltage circuit and the primary interlocking switch, and the second relay is connected in series in a loop where the cooling fan motor is located. The utility model provides a cooling fan motor is direct to be connected with the power, does not receive elementary interlocking switch control, opens the back when the furnace gate, and elementary interlocking switch opens, and the return circuit at high-voltage circuit place is cut off, but cooling fan motor place circuit return circuit is not cut off, and cooling fan motor can continue to carry out work, effectively cools off inside magnetron, high voltage transformer or other heating devices of microwave oven to reach increase of service life's purpose.
Description
Technical field
The utility model relates to a kind of micro-wave oven.
Background technology
Common micro-wave oven, as shown in Figure 1, the circuit loop at cooling fan motor 2 places is arranged on after the elementary interlocking switch K.There is following shortcoming in this micro-wave oven: when the user finishes using when opening fire door, elementary interlocking switch K opens thereupon, cooling fan motor 2 outages quit work, can not efficiently radiates heat to magnetron, high-tension transformer or other heat generating components of the micro-wave oven inside of just having worked, it still is in the high temperature, causes the use of microwave ovens lost of life at last.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, safe and reliable, can be effectively when oven door opening to the heater element in the micro-wave oven cool off, the micro-wave oven of long service life, to overcome weak point of the prior art.
A kind of micro-wave oven by this purpose design, comprise elementary interlocking switch, high-tension circuit, cooling fan motor and control assembly, be connected on both ends of power after high-tension circuit and the elementary interlocking switch serial connection, it is characterized in that the loop at cooling fan motor place directly is connected on both ends of power.
Described control assembly comprises first relay and second relay, and first relay is serially connected in the loop of being made up of high-tension circuit and elementary interlocking switch, and second relay is serially connected in the loop at cooling fan motor place.
The loop at the cooling fan motor place in the utility model is without elementary interlocking switch, directly be connected with power supply, not controlled by elementary interlocking switch, after oven door opening, elementary interlocking switch is opened, the loop at high-tension circuit place is cut off, but cooling fan motor place circuit loop is not cut off, cooling fan motor can be proceeded work, magnetron, high-tension transformer or other heater members to micro-wave oven inside effectively cool off, to reach the purpose that increases the service life.
Description of drawings
Fig. 1 is a microwave oven circuit schematic diagram in the prior art.
Fig. 2 is the utility model one embodiment circuit theory diagrams.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 2, this micro-wave oven comprises elementary interlocking switch K, high-tension circuit 1, cooling fan motor 2 and control assembly 3, is connected on both ends of power after high-tension circuit and the elementary interlocking switch serial connection, and the loop at cooling fan motor 2 places directly is connected on both ends of power.Control assembly comprises the first relay K J1 and the second relay K J2, the first relay K J1 is serially connected in the loop of being made up of high-tension circuit and elementary interlocking switch, be used to control the break-make in loop, high-tension circuit 1 place, the second relay K J2 is serially connected in the loop at cooling fan motor 2 places, is used to control the break-make in loop, cooling fan motor 2 place.
Claims (2)
1. micro-wave oven, comprise elementary interlocking switch (K), high-tension circuit (1), cooling fan motor (2) and control assembly (3), be connected on both ends of power after high-tension circuit and the elementary interlocking switch serial connection, it is characterized in that the loop at cooling fan motor place directly is connected on both ends of power.
2. according to the described micro-wave oven of claim 1, it is characterized in that described control assembly comprises first relay (KJ1) and second relay (KJ2), first relay is serially connected in the loop of being made up of high-tension circuit and elementary interlocking switch, and second relay is serially connected in the loop at cooling fan motor place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920056906XU CN201448891U (en) | 2009-05-15 | 2009-05-15 | Microwave oven with a heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920056906XU CN201448891U (en) | 2009-05-15 | 2009-05-15 | Microwave oven with a heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448891U true CN201448891U (en) | 2010-05-05 |
Family
ID=42553612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920056906XU Expired - Fee Related CN201448891U (en) | 2009-05-15 | 2009-05-15 | Microwave oven with a heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112273989A (en) * | 2020-09-30 | 2021-01-29 | 宁波方太厨具有限公司 | Working method of steam box and steam box applying method |
-
2009
- 2009-05-15 CN CN200920056906XU patent/CN201448891U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112273989A (en) * | 2020-09-30 | 2021-01-29 | 宁波方太厨具有限公司 | Working method of steam box and steam box applying method |
| CN112273989B (en) * | 2020-09-30 | 2022-02-08 | 宁波方太厨具有限公司 | Working method of steam box and steam box applying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Midea Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20180515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |