KR19990009606A - Microwave Thermal Cutout Switch Bracket - Google Patents

Abstract

The present invention is to provide a microwave thermal cutout switch bracket for reducing the number of fastening members to improve the assembly productivity and achieve cost reduction when the thermal cutout switch is assembled to the microwave oven.

Accordingly, the present invention is a thermal cut-out switch (1) consisting of a fastening member (3) formed at both ends of the switch main body (4) and the lower end of the switch main body (4) having a built-in bimetal, etc. In the microwave bracket consisting of a first plate portion (a) to which is attached, and a second plate portion (b) attached to one side of the cavity 40 while being stepped on the first plate portion (a), the first plate portion In (a), one side of the fixing member 3 for fixing the switch body 4 to the first plate portion a is fitted, and a protruding insertion groove 6 having one side cut out to be fixed and coupled is formed. The fastening hole 10 is formed so that the other side of the fixing member 3 can be fastened and fixed to the first plate portion a by the fastening member 5a, and the cavity 40 is formed in the second plate portion b. A fixing protrusion 7 is inserted into the fastening hole of the upper surface and fixedly coupled thereto, and at the same time, the second plate portion b together with the fixing protrusion 7 forms the cavity 40. So as to be close to the side surface is characterized in that the fixing insertion hole (9) which can be fastened by the fastening member (5b) is formed.

Description

Microwave Thermal Cutout Switch Bracket

The present invention relates to a microwave thermal cutout switch bracket, and more particularly, to a microwave thermal cutout switch bracket for improving assembly productivity and cost reduction in mounting a thermal cutout switch in a microwave oven.

In general, a microwave oven uses dielectric heating to be heated and cooked by the heating of food itself. Microwaves (2450MHz high frequency) oscillating from a magnetron are projected onto food (dielectric), and the food is cooked according to the frequency of the projected microwave. As the molecules move together, collision friction occurs with each other, and heat is generated in the food itself, thereby heating and cooking.

As shown in FIG. 1, the microwave oven is a cooking chamber A, which is a space for heating and cooking food by combining the front panel 10, the back panel 20, the base panel 30, and the cavity 40. ) Is formed in a compartment, and the machine room B, which is a space in which various core members of the microwave oven are mounted, is formed by the outer panel 50 constituting the exterior while surrounding the outside of the cavity 40.

Here, the door 70 for opening and closing the opening of the cooking chamber A is hinged to the front front panel 10 of the cooking chamber A.

On the bottom side of the cooking chamber 70, a rotating plate 60 for seating and cooking food is seated.

The front of the machine room (B) is provided with a control unit 80 for setting the operation control of the microwave oven and the cooking time and cooking conditions according to the food.

In the machine room (B), a high voltage transformer (90) for generating high voltage electricity by receiving power from a power supply device, a magnetron (100) for receiving a high voltage of the high voltage transformer (90) to generate a high frequency, and the magnetron Waveguide 110 for guiding the high frequency generated in the (100) to the cooking chamber (A), and a blower 120 for introducing the outside air to cool the inside of the microwave oven to the rear of the magnetron 100 is mounted. .

In addition, a thermal cutout switch 130 for controlling the temperature of the magnetron 100 is mounted at one side of the upper surface of the cavity 40 by the bracket 131.

In the microwave oven configured as described above, in particular, the thermal cut-out switch 130 is in the magnetron 100 when the temperature of the magnetron 100, or the temperature of the cooking chamber A is overheated above a predetermined predetermined temperature. It serves to control the temperature of the magnetron 100 by cutting off the applied power, and the mounting position of the thermal cutout switch 130 is mounted on one side of the upper surface of the cavity 40 as described above. It detects the temperature of (A) or is mounted on one side of the magnetron 100 to directly detect the temperature of the magnetron 100 to perform the above function.

On the other hand, the thermal cutout switch 130 is mounted on the upper surface of the cavity 40 or one side of the magnetron 100 by a bracket 131, as shown in Figure 2, the thermal cutout switch ( 130 is composed of a switch body 133 having a built-in bimetal and the like, and a fixing member 132 fixedly coupled to the bottom surface of the switch body 133 and having insertion holes 135a formed at both ends, and the bracket ( 131 is composed of a first plate portion (a) to which the switch body 133 is attached, and a second plate portion (b) bent from the first plate portion (a).

A plurality of fastenings may be attached to the first plate part (a) so that the fixing member 132 fixing the switch body 133 to be in close contact with the first plate part (a) may be fixed by a fastening member 134a such as a screw. A ball 136 is formed.

A plurality of insertion holes 135b are formed in the second plate part b so that the bracket 131 may be mounted to one side of the upper surface of the cavity 40 or one side of the magnetron 100 by a fastening member 134b such as a screw. have.

When the thermal cutout switch 130 is mounted on the microwave oven using the bracket 131 as described above, first, both insertion holes 135a and the bracket of the fixing member 132 fixed to the switch body 133 are mounted. By matching the two fastening holes 136 formed in the first plate portion (a) of 131, and fixing the two matched portions with the fastening member 134a, to the first plate portion (a) of the bracket 131 The switch body 133 is attached in close contact with the surface.

After attaching the switch body 133 to the first plate portion (a) of the bracket 131, the second plate portion (b) such that the second plate portion (b) of the bracket 131 and the upper surface of the cavity 40 are in close contact with each other. The two insertion holes (135b) formed in the) is matched to the two fastening holes formed on the upper surface of the cavity 40, and by fixing the two matched locations with the fastening member (134b), the bracket 131 is the cavity (40) The thermal cut-out switch 130 is fixedly mounted on the upper surface and is spaced apart from the upper surface of the cavity 40.

However, when the thermal cutout switch 130 is assembled to the microwave oven, the two fastening members 134a used to fix the switch body 133 to the first plate portion (a) of the bracket 131 as described above. ) And four fastening members 134a and 134b, including two fastening members 134b used for the second plate part b to fix the bracket 131 to the upper surface of the cavity 40, are assembled. As it is installed, there is a problem that the assembly productivity is lowered and the cost is increased.

Accordingly, the present invention is to solve the above problems, an object of the present invention is to reduce the number of fastening members when mounting the thermal cut-out switch in the microwave oven to improve assembly productivity and to achieve cost reduction It is to provide a microwave thermal cutout switch bracket.

In order to achieve the above object, the present invention provides a bracket for a microwave oven comprising a first plate portion to which a thermal cut-out switch is attached, and a second plate portion attached to one side of the cavity while being stepped on the first plate portion. The first plate portion is formed with a protruding insertion groove in which one side is cut open so that one side portion of the fixing member which fixes the switch body to the first plate portion is fitted and fixed, and the other side portion of the fixing member is fastened to the first plate portion. It characterized in that the fastening hole is formed so that the fastening can be fixed by.

1 is a perspective view of a conventional microwave oven,

2 is a perspective view showing a state in which a thermal cutout switch is attached to a conventional bracket;

3 is a perspective view illustrating a state in which a thermal cutout switch is attached to a bracket according to the present invention.

Explanation of symbols for main parts of the drawings

One; Thermal cut-out switch 2; Bracket

3; Fixing member 4; Switch body

5a, 5b: fastening member 6: protrusion insertion groove

7; Fixing projections 8, 9; Insertion hole

10; Fastener

a; First plate part b; Second edition

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view illustrating a state in which a thermal cutout switch is attached to a bracket according to the present invention.

In the following description, the same components and the same reference numerals are used for the same configurations as the conventional configurations, and detailed description thereof will be omitted.

As shown in FIG. 3, the present invention includes a switch body 4 having a built-in bimetal and the like, which is fixedly coupled to the lower end surface of the switch body 4, and an insertion hole 8 is formed at both ends of the fixing member 3. The first plate portion (a) to which the thermal cut-out switch 1 made of) is attached, and the second plate portion (b) attached to one side of the cavity 40 as well as being stepped on the first plate portion (a), the bracket ( 2) is made, and the first plate portion (a) is inserted into one side of the protruding insert is cut to one side of the fixing member (3) for fixing the switch body 4 to the first plate portion (a) to be fixedly coupled. A fastening hole 10 is formed so that the groove 6 is formed and the other side of the fixing member 3 is fastened and fixed to the first plate part a by the fastening member 5a.

Here, the protruding insertion groove 6 is protruded from the upper surface of the first plate portion (a) so that one side of the fixing member 3 can be easily inserted and fixed, so that one side is cut open.

In addition, the second plate part b is provided with a fixing protrusion 7 which is inserted into and fixed to the fastening hole of the upper surface of the cavity 40 and at the same time, the second plate part b together with the fixing protrusion 7 is formed in the cavity 40. The insertion hole 9 which can be fastened and fixed by the fastening member 5b is formed to be in close contact with the upper surface.

The fixing protrusion 7 is bent downward at one end of the second plate portion (b) to be inserted into the fastening hole 40a formed on the upper surface of the cavity 40 when the bracket 2 is attached and assembled to the upper surface of the cavity 40. It is formed in the form of.

Referring to the effects of the present invention as described above are as follows.

First, the thermal cutout switch 1 is attached to the first plate portion a of the bracket 2.

That is, when one side portion of the fixing member 3 coupled to the switch body 4 is fixed to the protruding insertion groove 6 formed in the first plate portion a, the other side of the fixing member 3 is automatically inserted. When the fastening hole 10 formed in the ball 8 and the first plate portion a coincides with each other, and the fastening member 5a is fitted therein, the thermal cut-out switch 1 is the first of the bracket 2. It is to be fixed to the plate portion (a).

After attaching the thermal cut-out switch 1 to the bracket 2 as described above, the fixing protrusion 7 formed in a downwardly bent shape at one end of the second plate portion b of the bracket 2 is formed in the cavity 40. When one side is inserted into the fastening hole 40a formed in the upper surface, and the position is fixed by the fixing protrusion 7, the insertion hole 9 and the other fastening hole formed in the upper surface of the cavity 40 are formed in the second plate part b. In this case, the fastening member 5b is inserted into and fastened to fix the bracket 2 to the upper surface of the cavity 40.

At this time, the upper surface of the cavity 40 and the second plate portion (b) of the bracket 2 are in close contact with each other, and the first plate portion (a) is spaced apart, and as a result, the thermal cut-out switch 1 is connected to the upper surface of the cavity 40. It will be mounted spaced apart.

Therefore, the bracket 2 to which the present invention is applied as described above, when the thermal cut-out switch 1 is assembled to the microwave oven, uses the four fastening members conventionally, the protrusion insertion groove 6 and the fixing protrusion. By using (7), the use of the fastening member can be reduced to two, thereby improving assembly productivity and achieving cost reduction.

As described above, according to the present invention, a protrusion insertion groove and a fastening hole are formed in the first plate portion of the bracket to which the thermal cut-out switch is attached, and a fixing protrusion and an insertion hole are formed in the second plate portion of the bracket which is in close contact with the upper surface of the cavity. When the thermal cut-out switch is assembled to a microwave oven, the number of fastening members is reduced, thereby improving assembly productivity and achieving cost reduction.

Claims (2)

In the bracket of the microwave oven comprising a first plate portion to which the thermal cut-out switch is attached, and a second plate portion attached to one side of the cavity while being stepped on the first plate portion, The first plate portion is formed with a protruding insertion groove having one side cut open so that one side portion of the fixing member fixing the switch body to the first plate portion is inserted into the first plate portion, and the other side portion of the fixing member is formed on the first plate portion. A microwave thermal cutout switch bracket, characterized in that the fastening hole is spaced apart from the protruding insertion groove so as to be fastened by the fastening member. The method of claim 1, The second plate portion is formed with a fixing projection to be fixed and coupled to the cavity upper surface fastening hole and at the same time the insertion hole which can be fastened and fixed by a fastening member so that the second plate portion is attached to the upper surface of the cavity together with the fixing protrusion is formed Ranger thermal cut-out switch bracket.