CN101639234A - Grounding structure of microwave oven heater - Google Patents
Grounding structure of microwave oven heater Download PDFInfo
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- CN101639234A CN101639234A CN200810053990A CN200810053990A CN101639234A CN 101639234 A CN101639234 A CN 101639234A CN 200810053990 A CN200810053990 A CN 200810053990A CN 200810053990 A CN200810053990 A CN 200810053990A CN 101639234 A CN101639234 A CN 101639234A
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- heater
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- microwave oven
- grounding
- earth connection
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Abstract
The invention discloses a grounding structure of a microwave oven heater, which comprises a heater 40 and a grounding wire 50 connected with the heater 40; one end of the heater 40 exposed out of an oven body of the microwave oven is pressed by a copper sleeve tube 41 to be fixed with a grounding wire terminal 42; one end of a lead wire 52 of the grounding wire 50 is provided with a grounding ring51 fixed with the oven body of the microwave oven, and the other end of the lead wire 52 of the grounding wire 50 is provided with an inserting terminal 53; and the inserting terminal 53 is connectedwith the grounding wire terminal 42 of the heater 40 in an inserting way. The grounding structure of the microwave oven heater has the advantages of simple and convenient assembly, good firmness andstrong toughness. Components such as the grounding wire connected with the heater and the like can not be damaged even though the heater is operated for ten thousand times so as to ensure that the wire body can not be broken and greatly improve the safety performance of the microwave oven. The grounding structure has great significance for production practice.
Description
Technical field
The present invention relates to field of mechanical technique, particularly relate to a kind of ground structure of microwav eoven heater.
Background technology
Micro-wave oven is to produce microwave by electric current, and microwave irradiation surface of heating object in the cavity is come device that article are heated.As everyone knows, micro-wave oven is a kind of modernization cooking kitchen range with microwave heating of food.The microwave that it adopted is a kind of electromagnetic wave.This electromagnetic energy is not only much bigger than common radio wave, but also characteristics are arranged very much, and microwave at a touch metal just reflects, and metal has no idea to absorb or conduct it at all; Microwave can pass insulating materials such as glass, pottery, plastics, but can consumed energy; And contain the food of moisture, and microwave not only can not see through, and its energy can be absorbed on the contrary.Based on these characteristics, micro-wave oven is heat food well, has obtained utilization widely in daily life.
At present, as shown in Figure 1, micro-wave oven generally includes: comprise the body 10 of front casing 11, shell 12 and outside framework 13, form the cavity 20 of culinary art chamber, and the inner electric control chamber 30 that various electric components are installed.
Described electric component comprises: be used to generate the magnetron 31 of microwave, be used for providing to magnetron 31 high-tension transformer 32 of high pressure, and be used for blowing fan 33 that body 10 inner various electric components are cooled off.
To come cooking food can only be that the temperature of food is risen in view of depending merely on microwave, therefore usually as shown in Figure 2, the heater of being made by heating tube, the auxiliary heating source of conduct uses 40 is installed on microwave oven cavity 20 tops, by heater 40, food was toasted as the quilt fire, thereby increase appetite of people, in addition, when utilizing heating using microwave, drive the heater 40 that uses as auxiliary heating source, can shorten the cooking time of food.
The heater (heater) that uses as auxiliary heating source in the micro-wave oven, a kind of existing ground structure that it adopts as shown in Figure 3, lead-in wire 52 1 ends of earth connection 50 are and the fixing ground loop 51 of microwave oven body among the figure, its 52 other ends that go between directly contact with the surface of heater 40, by copper sleeve 41 fixedly connected heaters 40 (tubular structure of heater for being made by heating tube).The syndeton of this heater and earth connection, heater via (heater) rotates life experiment and proves, general heater turns to 1000 all after dates, promptly can cause the fixing lead-in wire in copper sleeve 41 places to fracture, obviously, use in the process of micro-wave oven the user to cause earth connection to lose efficacy, will have a strong impact on the safe in utilization of micro-wave oven user, form great potential safety hazard owing to lead-in wire fractures.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of ground structure of microwav eoven heater, toughness that can bigger raising earth connection and firm degree are to prevent that earth connection from repeatedly fractureing after the rotation, having guaranteed the use of microwave ovens security performance.
For this reason, the invention provides a kind of ground structure of microwav eoven heater, comprise heater 40 and the earth connection 50 that is connected with heater 40, the end that described heater 40 exposes to microwave oven body has a ground wire terminal 42 by copper sleeve 41 pressing and fixing, lead-in wire 52 1 ends of described earth connection 50 have and the fixing ground loop 51 of microwave oven body, have a plug terminal 53 on lead-in wire 52 other ends of described earth connection 50, described plug terminal 53 adopts inserting mode to be connected with the ground wire terminal 42 of described heater 40.
Preferably, the lead-in wire outer setting of described earth connection 50 has heat-shrink tube sheath 54.
Preferably, described ground loop 51 adopts screw nut assembly to realize being fixed on the microwave oven body.
By above technical scheme provided by the invention as seen, the invention provides in the ground structure of microwav eoven heater, earth connection adopts inserting mode to be connected with heater, have simple installation, fastness is good, toughness is strong advantage, even heater has rotated up to ten thousand times, the parts such as earth connection that heater connects are also excellent, guarantee that the line body does not fracture, therefore greatly improved the security performance of micro-wave oven, be of great practical significance.
Description of drawings
Fig. 1 is the exploded perspective view of common microwave stove structure;
Fig. 2 is the heater section in the common microwave stove and the plane of cavity upper panel;
Fig. 3 is the schematic diagram of a kind of ground structure of existing common microwave stove heater;
Fig. 4 is the schematic diagram of the ground structure of a kind of microwav eoven heater provided by the invention.
The specific embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 4, Fig. 4 is the schematic diagram of the ground structure of a kind of microwav eoven heater provided by the invention.As shown in Figure 4, the ground structure of microwav eoven heater provided by the invention comprises heater 40 and the earth connection 50 that is connected with heater 40.
For the ease of understanding structure of the present invention, be divided into heater section and earth connection below and partly carry out the structure description.
In the heater section structure, the end that heater 40 exposes to the microwave oven body (not shown) has a ground wire terminal 42 by copper sleeve 41 pressing and fixing, this ground wire terminal 42 realizes being fixed in the surface of heater 40 by copper sleeve 41, and an end end that exposes to microwave oven body at this heater 40 has the heater terminal 43 that is used to connect power supply.
In the earth connection part-structure, lead-in wire 52 1 ends of earth connection 50 are and the fixing ground loop 51 of microwave oven body (not shown), have a plug terminal 53 on lead-in wire 52 other ends of earth connection 50, described plug terminal 53 adopts inserting mode to be connected with the ground wire terminal 42 of heater 40.
Be understandable that described ground loop 51 can adopt multiple mode to fixedly connected with microwave oven body, for example, welding, fastener bolt connects.On the specific implementation, ground loop as shown in Figure 4 can adopt screw nut assembly to realize being fixed on the microwave oven body.
In addition; the present invention has defensive heat-shrink tube sheath 54 in line body (promptly the going between 52) outer setting of earth connection 50; thereby the duplicate protection of the lead-in wire 52 of the ground wire 50 that achieves a butt joint; the toughness and the firm degree of earth connection have been improved greatly; the line body (promptly going between 52) that prevents earth connection has guaranteed the security performance of micro-wave oven in the potential safety hazard through fractureing and caused after repeatedly rotating.
Need to prove that the heat-shrink tube sheath can play is high temperature resistant, wear Protection, effect such as anticorrosive in the use of microwav eoven heater ground structure of the present invention.
Through heating for multiple times device experiment of rotation, use the ground structure of microwav eoven heater provided by the invention, have simple installation, fastness is good, toughness is strong advantage, even heater has rotated up to ten thousand times, the parts such as earth connection that heater connects are also excellent, guarantee that the line body does not fracture, therefore greatly improved the security performance of micro-wave oven, be of great practical significance.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1, a kind of ground structure of microwav eoven heater, comprise heater (40) and the earth connection (50) that is connected with heater (40), it is characterized in that, the end that described heater (40) exposes to microwave oven body has a ground wire terminal (42) by copper sleeve (41) pressing and fixing, lead-in wire (52) one ends of described earth connection (50) have and the fixing ground loop (51) of microwave oven body, have a plug terminal (53) on lead-in wire 52 other ends of described earth connection (50), described plug terminal (53) adopts inserting mode to be connected with the ground wire terminal (42) of described heater (40).
2, the ground structure of microwav eoven heater as claimed in claim 1 is characterized in that, lead-in wire (52) outer setting of described earth connection (50) has heat-shrink tube sheath (54).
3, the ground structure of microwav eoven heater as claimed in claim 1 is characterized in that, described ground loop (51) adopts screw nut assembly to realize being fixed on the microwave oven body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810053990A CN101639234A (en) | 2008-07-29 | 2008-07-29 | Grounding structure of microwave oven heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810053990A CN101639234A (en) | 2008-07-29 | 2008-07-29 | Grounding structure of microwave oven heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101639234A true CN101639234A (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810053990A Pending CN101639234A (en) | 2008-07-29 | 2008-07-29 | Grounding structure of microwave oven heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN101639234A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280681A (en) * | 2013-03-22 | 2013-09-04 | 国家电网公司 | Universal combined short-circuit device for heavy current tests |
-
2008
- 2008-07-29 CN CN200810053990A patent/CN101639234A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280681A (en) * | 2013-03-22 | 2013-09-04 | 国家电网公司 | Universal combined short-circuit device for heavy current tests |
| CN103280681B (en) * | 2013-03-22 | 2016-03-23 | 国家电网公司 | A kind of cranking test general-purpose combination short-circuit device |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100203 |