Coupler coupling structure of microwave oven

专利摘要:
The present invention relates to a coupler coupling structure of the microwave oven, the first coupler is pressed into the rotation axis of the drive motor installed on the bottom surface of the cooking chamber, the first coupler is coupled to the second coupler for transmitting the driving force to the tray side In the second coupler, a coupler separation member is provided to separate and / or couple the second coupler to the first coupler, thereby preventing separation by the centrifugal force during operation of the driving motor, and at the same time. In the post-maintenance, the coupler can be easily separated and / or combined with respect to the rotating shaft, thereby reducing the material cost, and in particular, the safety of the standard and the quality can be satisfied by preventing the coupler from falling off during the microwave test.
公开号:KR19990038635A
申请号:KR1019970058455
申请日:1997-11-06
公开日:1999-06-05
发明作者:최정묵
申请人:윤종용；삼성전자 주식회사；
IPC主号:

专利说明:

Coupler coupling structure of microwave oven
The present invention relates to a coupler (coupler) coupling structure of the microwave oven, and more particularly, to improve the structure of the coupler for transmitting the driving force of the drive motor to the tray side to easily remove and / or coupler during post-maintenance of the microwave oven. It relates to a coupler coupling structure of a microwave oven to be able to couple.
In general, a microwave oven is a household cooking device for cooking food using microwaves emitted from a magnetron to which a high voltage is applied. Such a microwave oven is equipped with a magnetron (not shown) as shown in FIG. 1. The cabinet 10, which is partitioned into a separate partition inside the cabinet 10, and includes a cooking chamber 10a in which a container containing food is stored, is hinged to one end of the cabinet 10, so that the interior of the cooking chamber 10a is closed. It consists of a door 12 for sealing.
A driving motor 16 is installed below the bottom surface 14 of the cooking chamber 10a to provide driving force, and a tray 18 is mounted on the bottom surface 14 so as to place a container containing food. The center of the bottom of the tray 18 and one side thereof have a fitting groove 18a and a guide groove 18b having a circumferential shape.
A coupler 20 is provided between the drive motor 16 and the tray 18 to transmit a driving force to rotate the tray 18 at a set speed, as shown in FIG. 2, and the coupler 20 is bottomed. A portion is penetrated into the through hole 14a of the surface 14 to protrude spaced apart from the coupling groove 20a and the upper surface formed at a predetermined angle so as to be coupled to one end of the rotating shaft 16a of the drive motor 16. A plurality of fitting protrusions 20b fitted into fitting grooves 18a of 18 are provided.
Between the tray 18 and the bottom surface 14 there is an annular roller support 24 coupled with a plurality of rollers 22 for stable rotation of the tray 18, the rollers 22 having a tray 18. Guide groove (18b) and the outer circumferential surface of the surface contact and rolling motion.
In addition, Figure 3 is a view showing another embodiment of the conventional coupler in order to transfer the driving force of the drive motor, a plurality of fitting projections (30b) to be fitted to the fitting groove (18a) of the tray 18 on the upper surface of the coupler (30) ) Is protruded, the lower portion thereof is coupled to the through hole (14a) of the bottom surface 14 and at the same time the coupling groove (30a) is formed to be coupled to one end of the rotating shaft (16a) of the drive motor 16 On the outer circumferential surface, a departure prevention protrusion 32 is applied to the bottom surface of the bottom surface 14 to prevent the departure from the rotation of the driving motor 16.
In the conventional microwave oven configured as described above, the coupler 20 is coupled by forcibly inserting the coupling groove 20a into one end of the rotation shaft 16a of the driving motor 16, or the driving motor 16 as shown in FIG. In order to prevent separation of the coupler 30 by centrifugal force during the operation of the separation prevention protrusion 32 protruding to its outer peripheral surface through the through hole (14a) to be caught by the bottom surface 14 of the fitting protrusion ( 20b) 30b is inserted into the fitting groove 18a of the tray 18, and assembly is completed.
Thereafter, the container containing the food is placed on the tray 18 and the driving motor 16 installed on the bottom surface 14 is operated to be coupled to the rotary shaft 16a of the driving motor 16 and one end thereof. As the coupler 20, 30 and the tray 18 are rotated together in the same direction by one rotation shaft 16a, microwaves emitted from the magnetron are irradiated onto the food to evenly cook the food.
That is, when microwaves are irradiated to the food, the food is cooked as the heat is induced by the frictional heat generated during the collision of molecules in the food.
However, the coupler is permanently coupled to the rotating shaft by forcibly pressing the coupler for transmitting the driving force of the driving motor to the tray side as described above, and the coupler is permanently coupled to the rotating shaft, which is damaged when the coupler is replaced during post-maintenance of the microwave oven. By replacement later, the material cost was increased.
In addition, to prevent the separation when the drive motor is driven, the through-hole coupler protruding from the anti-separation protrusion is penetrated by the through hole on the bottom, so it is easily separated from the external shock when operating or testing the microwave oven. There was a problem of this deterioration.
The present invention is to solve the above problems, an object of the present invention is to prevent the separation by centrifugal force during operation of the drive motor and at the same time to simply remove and / or couple the coupler with respect to the rotary shaft during post-maintenance of the microwave oven. It is possible to reduce the material cost, and in particular to provide a coupler coupling structure of the microwave oven that can prevent the separation of the coupler during the test of the microwave oven can satisfy the safety standards and quality.
1 is a perspective view illustrating a state in which a door of a conventional microwave oven is opened;
2 is a cross-sectional view showing a state in which a coupler is coupled to the microwave oven of FIG. 1;
3 is a cross-sectional view showing another conventional embodiment in which a coupler is coupled to the microwave oven of FIG. 2;
4 is an exploded perspective view showing a coupler coupling structure of a microwave oven according to the present invention;
5 is an assembled cross-sectional view of the coupler coupling structure shown in FIG.
6 is a cross-sectional view illustrating a coupler coupling structure of the microwave oven according to the present invention.
Explanation of symbols on the main parts of the drawings
50, 52: first and second coupler 50a: hollow part
52a: engaging groove 52b: guide ball
52c: locking hole 52d: fitting protrusion
54: coupler separating member 56: button
58: semicircle 60: extension
62: jamming jaw
The present invention is to achieve the above object, a feature of the present invention is a tray is mounted on the top of the bottom surface of the cooking chamber provided in the cabinet, a drive motor is installed in the bottom of the bottom surface is pressed in the rotary shaft to transmit the driving force And a coupler coupling structure of the microwave oven having a coupler coupled to the rotary shaft and the tray to transmit a driving force for rotating the tray, wherein the coupler is press-fitted to the rotary shaft of the drive motor to transfer the driving force to the first coupler; A second coupler coupled to the first coupler to transmit a driving force to the tray side; The second coupler is separated and / or coupled to the first coupler by means of a coupler separating member provided in the second coupler.
The second coupler according to the present invention includes a pair of guide holes formed on the outer circumferential surface of the coupler separating member and one end of the first coupler to communicate with the coupling groove, and a locking hole spaced apart by a predetermined distance from the lower portion thereof. It is achieved by providing a fitting protrusion protruding from the upper surface thereof to be coupled to the tray.
Coupler separating member according to a preferred embodiment of the present invention is a button and the button is inserted into the guide hole and the semi-circular portion injection molded at both ends and the extension portion extending in the vertical direction to both ends of the semi-circular portion and the extension at right angles It is achieved by being a locking jaw that is bent to expose a portion of the locking hole.
Hereinafter, a preferred embodiment of the coupler coupling structure of the microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.
4 is a view showing a coupler coupling structure according to the present invention, the same reference numerals refer to the same parts as in the prior art in the configuration of the microwave oven.
A driving motor 16 is installed in the lower part of the bottom surface 14 of the cooking chamber 10a provided in the cabinet 10 to provide a driving force, and a hollow portion 50a is provided at the rotation shaft 16a of the driving motor 16. The first coupler 50 has a press-fit, and the first coupler 50 is coupled to the second coupler 52 in which the coupling groove 52a is formed to transmit the driving force to the tray 18 side.
On the outer circumferential surface of the second coupler 52, a pair of guide holes 52b communicating with the coupling groove 52a and a catching hole 52c spaced at a predetermined distance from the lower portion thereof are formed, respectively, and the second coupler 52 In the coupling groove 52a of the coupler separating member 54 to enable the second coupler 52 to be easily separated from the first coupler 50 and the bottom surface 14 during post-maintenance of the microwave oven. Prepared.
The coupler separating member 54 includes a button 56 fitted into the guide hole 52b of the second coupler 52 and a semicircular portion 58 having predetermined elasticity in which both ends of the button 56 are injection molded. Extension portion 60 extending in the vertical direction at both ends of the semi-circular portion 56 and bent at a right angle to this portion is exposed to the engaging hole 52c to the engaging jaw 62 is caught on the bottom surface of the bottom surface 14 It is provided.
Here, the catching jaw 62 is spaced apart by a predetermined gap to prevent interference due to contact with the bottom surface 14 of the bottom coupler during rotation of the second coupler 52, and the first coupler 50 The shape of is formed into a polyhedron in order to accurately transfer the driving force of the drive motor 16, the coupling groove 52a of the second coupler 52 coupled thereto is processed into the same shape as the shape of the first coupler (50). This is preferred.
A plurality of fitting protrusions 52d protrude from the upper surface of the second coupler 52 so as to fit into the fitting grooves 18a formed at the bottom of the tray 18, and a plurality of rollers are disposed between the tray 18 and the bottom surface 14. The annular roller support 24 with which the 22 is coupled is located.
The operation of the coupler coupling structure of the microwave oven according to the present invention configured as described above will be described in detail with reference to FIGS. 5 and 6.
The coupler separating member 54 is inserted into the coupling groove 52a of the second coupler 52. That is, the inner diameter of the semicircular portion 58 is made smaller than the inner diameter of the coupling groove 52a by pressing the button 56 with a predetermined force in both directions, and then the semicircular portion 58 including the button 56 is coupled to the coupling groove ( 52a) When pushed and inserted into the inside, the locking jaw 62 extending to the button 56 and the semicircular portion 58 moves to the guide hole 52b and the locking hole 52c formed in the second coupler 52. When the guide hole 52b and the locking hole 52c are positioned, a portion of the button 56 and the locking jaw 62 is exposed to the outside by the tension of the compressed semicircular part 58.
Thereafter, when the button 56 is pressed again to pass a portion of the second coupler 52 into the through hole 14a of the bottom surface 14, the semicircular portion 58 is compressed to the engaging hole 52c. The exposed locking jaw 62 is moved into the coupling groove 52a, and is pressed into the rotation shaft 16a by the coupling groove 52a of the second coupler 52 through which a portion thereof is penetrated by the through hole 14a. One coupler 50 is coupled.
Then, when the pressing force of the button 56 is released, the button 56 and the locking jaw 62 are returned to the initial state by the elastic force of the semicircular portion 58. That is, the button 56 is exposed on the upper surface of the bottom surface, and the locking jaw 62 is exposed to the lower portion with a predetermined gap with respect to the bottom surface 14 to prevent the separation of the second coupler 52. You can do it.
When cooking food using the assembled microwave oven, when the driving motor 16 is operated after placing the food to be cooked on the tray 18, the product is pressed into the rotating shaft 16a of the driving motor 16. As the coupler 50 and the second coupler 52 coupled thereto rotate in the same direction, the microwaves emitted from the magnetron are rotated by rotating the tray 18 in which the fitting protrusion 52d of the second coupler 52 is fitted. Food is irradiated evenly and food is cooked.
When the second coupler 52 is separated from the first coupler 50 during the post-maintenance of the microwave oven, the button 56 exposed to the guide hole 52b in the reverse order of coupling the second coupler 52 is removed. By pressing, the second coupler 52 can be easily removed.
As described above, according to the coupler coupling structure of the microwave oven according to the present invention, the coupler can be easily separated and / or coupled to the rotating shaft during post-maintenance of the microwave at the same time to prevent separation by centrifugal force during operation of the driving motor. Material cost can be reduced, and in particular, when the test of the microwave oven is prevented from falling off the coupler can meet the safety standards and quality.
The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

权利要求:
Claims (7)
[1" claim-type="Currently amended] A tray is mounted on the bottom of the cooking compartment provided in the cabinet, and a drive motor having a rotary shaft press-fitted to transmit a driving force is installed at the bottom of the bottom of the cooking chamber, and is coupled to the rotary shaft and the tray to transmit driving force for rotating the tray. In the coupler coupling structure of the microwave oven provided with a coupler,
A first coupler press-fitted to the rotation shaft of the drive motor;
A second coupler coupled to the first coupler to transmit a driving force to the tray side;
The coupler coupling structure of the microwave oven, characterized in that the second coupler is separated and / or coupled to the first coupler by a coupler separating member provided in the second coupler.
[2" claim-type="Currently amended] The coupler coupling structure according to claim 1, wherein the first coupler is shaped into a polyhedron so as to accurately transfer the driving force of the driving motor to the second coupler.
[3" claim-type="Currently amended] According to claim 1, The coupler is separated from the coupler separating member and the pair of guide holes formed on the outer peripheral surface thereof to communicate with the coupling groove and the lower portion thereof to communicate with the coupling groove is coupled to one end of the first coupler and the coupler. Coupled structure of the microwave oven, characterized in that the fitting projection protruding on the upper surface to be coupled to the engaging hole and the tray.
[4" claim-type="Currently amended] The method of claim 1, wherein the coupler separating member is bent at right angles to the button fitted into the guide hole and the semi-circular portion that the button is injection molded at both ends, the extension portion extending in the vertical direction to both ends of the semi-circular portion and the extension portion Coupler coupling structure of the microwave oven, characterized in that the locking jaw is a portion exposed to the locking hole.
[5" claim-type="Currently amended] The coupler coupling structure according to claim 3, wherein the coupling groove is processed into the same shape as that of the first coupler.
[6" claim-type="Currently amended] The coupler coupling structure according to claim 4, wherein the semi-circular portion is provided with a predetermined elastic force so that both ends thereof can be retracted inward when the button is pressed in both directions.
[7" claim-type="Currently amended] The method of claim 4, wherein the locking step is positioned so as to be spaced apart by a predetermined gap with respect to the bottom surface to prevent interference due to contact with the bottom surface of the bottom surface when the second coupler is rotated. Coupler coupling structure of microwave oven.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1997-11-06|Application filed by 윤종용, 삼성전자 주식회사

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1997-11-06|Priority to KR1019970058455A

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1997-11-06|Priority claimed from KR1019970058455A

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1999-06-05|Publication of KR19990038635A

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2001-02-01|Application granted

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2001-02-01|Publication of KR100277955B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1019970058455A|KR100277955B1|1997-11-06|Coupler coupling structure of microwave oven|