KR100492314B1 - Electrical Connection Structure of Heater - Google Patents

Abstract

A power connection structure of a heater is disclosed so that the heater can be switched between a horizontal position and a vertical position while wires for supplying power to the heater are fixed. The power connection structure of the heater has a connection mechanism provided between the wires and the heater. One surface of the connection mechanism is provided with first and second vertical position connecting terminals and first and second horizontal position connecting terminals arranged at an angle of approximately 90 degrees to each other. The first vertical position connection terminal, the first horizontal position connection terminal, and the second vertical position connection terminal and the second horizontal position connection terminal are electrically connected to each other by the first and second connection lines, respectively. The other side of the connection mechanism is provided with a first connection terminal coupled to the first connection line and a second connection terminal coupled to the second connection line. At the ends of the wires, a housing into which each connecting terminal is fitted is coupled.

Description

Electrical Connection Structure of Heater

The present invention relates to a heater installed in a cooker such as a microwave oven for cooking food, and more particularly, a heater is switched between a horizontal position and a vertical position in a state in which wires for supplying power to the heater are fixed. It relates to a power connection structure of a heater.

In general, a cooker such as a microwave oven has a heater built in to cook food or toast the food. The heater is installed so as to be switchable in a vertical position and a horizontal position so that the heater may be arranged horizontally with the food according to the size of the food, the heating temperature, or the heating portion, or may be cooked by placing the heater horizontally.

1 is a view showing a rough internal structure of a microwave oven in which a heater is installed in a cooking chamber. As shown in the drawing, a heater 2 is installed at an upper portion of the cooking chamber 1, and a tray 3 for placing food is provided at a lower portion of the cooking chamber 1. When power is supplied to the heater 2, the heat of the heater is transferred to the upper portion of the food, and the food is cooked. May be

In the electrical equipment room 4 partitioned from the cooking chamber 1, electrical equipment such as the magnetron 5 and the high-pressure transformer 6 is installed to cook the food placed in the cooking chamber 1 by high frequency.

The heater 2 is formed in a substantially "c" shape so that both ends disposed above the cooking chamber 1 and separated from each other are rotatably supported by the flange part 7 provided on one side wall of the cooking chamber 1, One end of the connected free end is arranged to be supported by the support member 8 so as to be switched between the horizontal position (illustrated by solid line) and the vertical position (illustrated by dashed line) in the cooking chamber 1. In addition, the wires 9 are connected to both separate ends of the heater 2 through the flange 6 to supply power.

Figure 2 is a view showing a structure in which wires are coupled to both ends of the heater by the power connection structure of the heater according to the prior art. As shown in the drawing, each end of the heater 2 is provided with a connection terminal 2a for coupling the wires 9, and a front end of each wire 9 for coupling with the respective connection terminals 2a. The housing 10 is coupled. Therefore, when each connection terminal 2a of the heater 2 is fitted into each housing 10 to which the wire 9 is connected, power can be supplied to the heater 2.

However, the power connection structure of the conventional heater configured as described above is made in such a way that the housing coupled with the wire is directly connected to the heater rotating between the horizontal position and the vertical position, so that the wire and the housing rotate together with the heater in accordance with the rotation operation of the heater. As a result of the repeated rotational motion of the heater, dynamic fatigue accumulates between the wire and the housing and between the housing and the connection terminal of the heater, and the housing or the wire is disconnected from the heater due to long-term use. This will be.

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to provide a power source for the heater so that the heater can be switched between the horizontal position and the vertical position while the wires for supplying power to the heater is fixed It is to provide a connection structure.

The power connection structure of the heater according to the present invention for achieving this object is a heater installed so as to rotate between a vertical position and a horizontal position, a plurality of wires for supplying power to the heater, and the plurality of wires are fixed And a connection mechanism provided between the plurality of wires and the heater to be electrically connected to the heater in a state.

A pair of vertical position connecting terminals for contacting both ends of the heater in a state in which the heater is disposed vertically on one surface of the connecting device facing the heater, and both ends of the heater in a state where the heater is arranged horizontally A pair of horizontal position connecting terminals are provided to make contact with each other, and an angle formed by a line connecting the pair of vertical position connecting terminals and the line connecting the pair of horizontal position connecting terminals is approximately 90 degrees. do.

The pair of vertical position connecting terminals are arranged up and down by forming first and second vertical position connecting terminals, and the pair of horizontal position connecting terminals are constituted by first and second horizontal position connecting terminals, respectively. 2 the vertical position connecting terminal is spaced apart from the predetermined distance up and down, the first vertical position connecting terminal and the first horizontal position connecting terminal arranged on the top is electrically connected to each other by a first connecting line, arranged below The second vertical position connecting terminal and the second horizontal position connecting terminal are electrically connected to each other by a second connecting line.

In addition, a first connection terminal coupled to the first connection line and a second connection terminal coupled to the second connection line are provided on the other surface of the connection mechanism facing the plurality of wires.

A housing is coupled to an end of each wire, and each connection terminal is fitted to each housing.

In addition, an elastic piece is attached to both ends of the heater to be in contact with the pair of horizontal position connecting terminal and the vertical position connecting terminal in close contact.

Preferably, the elastic piece is composed of a leaf spring.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 and 3 to 6.

3 is a schematic cross-sectional view showing a power connection structure of the heater according to the present invention;

4 and 5 are exploded perspective views showing that the heater is connected to the connecting device in the horizontal position and the vertical position, respectively, and FIG. 6 is one surface of the connecting device showing the arrangement of the connection terminals corresponding to the vertical position and the horizontal position of the heater. 7 is a perspective view of the other surface of the connecting mechanism showing a structure in which the connecting terminals electrically connected to the connecting terminals are coupled to the housing of each wire.

As shown in FIG. 3, the power connection structure of the heater according to the present invention is arranged to be switchable between a horizontal position and a vertical position to apply heat to food placed in the cooking chamber 1 (see FIG. 1). 10) between the heater 10 and the first and second wires 20, 21 for supplying power to the heater 10, and between the heater 10 and the first and second wires 20, 21. The connection mechanism 30 is arranged so that the first and second wires 20 and 21 are held in a fixed state even when the heater 10 is switched from the vertical position to the horizontal position or the horizontal position to the vertical position. ) Is configured.

The first end 11 and the second end 12 of the heater 10 are disposed to face each other in a state adjacent to each other, and one end of the first end 11 and the second end 12 opposite to the inner side of the heater 10 is conventionally disposed. As described above, the flange portion 15 and the support member 16 for supporting the heater 10 rotatably are provided. That is, the heater 10 is connected to the cooking chamber 1 so as to be switched between the vertical position and the horizontal position by the flange portion 15 and the support member 16 fixed to the side wall and the rear wall of the cooking chamber 1, respectively. It is installed. Here, since the flange portion 15 and the support member 16 do not form a feature of the present invention, the structure and the support member 16 is rotatably installed on the side wall of the cooking chamber 1 The structure fixed to the rear wall of the cooking chamber 1 will not be described.

In addition, the first end 11 and the second end 12 of the heater 10 are respectively provided with elastic pieces 13 and 14 made of leaf springs, so that the first and second of the connection mechanism 30 to be described later. The horizontal position connecting terminals 32 and 33 and the first and second vertical position connecting terminals 34 and 35 (refer to FIG. 4) may be brought into close contact with each other.

First and second housings 22 and 23 having slots 22a and 23a are coupled to end portions of the first and second wires 20 and 21, respectively, and a connection mechanism 30 to be described later. To be easily connected to the first and second connection terminals 38 and 39 (see FIG. 7).

The connection mechanism 30 is installed on the outer side of the side wall of the cooking chamber 1 so that the first end 11 and the second end 12 of the heater 10 can be accommodated so that the switching operation can be performed in a vertical position or a horizontal position. At the same time, it is possible to supply power to the heater 10 in a state where the first and second wires 20 and 21 are fixed even during the switching operation of the heater 10.

The connection mechanism 30 having the function as described above has an open cylindrical shape and is fixed to the outer surface of the side wall of the cooking chamber 1 by welding, screwing (not shown), or other coupling method.

As shown in Figs. 4 and 5, the connecting mechanism 30 is connected to the first end 11 and the second end 12 and the first end 11 of the heater 10 through a disc 31 for closing the other end of the cylindrical shape. And the second wires 20 and 21 are arranged to be separated from each other.

First and second horizontal position connecting terminals 32 for supplying power to the heater 10 in a state where the heater 10 is placed in a horizontal position on an inner side surface of the disc 31 facing the heater 10 ( 33 and first and second vertical position connecting terminals 34 and 35 for supplying power to the heater 10 with the heater 10 in the vertical position protrude toward the heater 10. On the outer surface of the disc 31, the first connecting line 36 for connecting the first horizontal position connecting terminal 32 and the first vertical position connecting terminal 34, and the second horizontal position connecting terminal 33 ) And a second connecting line 37 connecting the second vertical position connecting terminal 35.

In addition, a first connection terminal 38 protruding outward toward the first wire 20 is welded or otherwise coupled to the first connection line 36, and likewise, the second connection line 37 The second connecting terminal 39 protruding outward toward the two wires 21 is welded or otherwise connected.

As shown in FIG. 6, the first horizontal position connecting terminal 32 and the second horizontal position connecting terminal 33 protrude a predetermined length perpendicular to the disk 31 at the upper and lower portions of the inner surface of the disk 31. Likewise, the second vertical position connecting terminal 34 and the second vertical position connecting terminal 35 are also installed to protrude vertically vertically from the upper and lower portions of the disc 31. In addition, a line L1 connecting the first and second horizontal position connecting terminals 32 and 33 and a line L2 connecting the first and second vertical position connecting terminals 34 and 35 meet to each other. The angle is arranged to be approximately 90 degrees.

Therefore, the elastic piece 13 of the first end 11 of the heater 10 is switched between the first horizontal position connecting terminal 32 and the second vertical position connecting terminal 34, and the The elastic piece 14 of the second end 12 is switched between the second horizontal position connecting terminal 33 and the second vertical position connecting terminal 35 so that the heater 10 is vertical in the cooking chamber 1. The first and second wires 20 and 21 can be switched between the position and the horizontal position, and the first and second wires of the heater 10 through the first and second connection lines 36 and 37, respectively. It is to be electrically connected to the stage (11) (12).

Next will be described the operation of the power connection structure of the heater according to the present invention configured as described above.

4 and 6, in a state where the heater 10 is disposed in a horizontal position, the first elastic piece 13 is in elastic contact with the first horizontal position connecting terminal 32. The second elastic piece 14 is brought into contact with the second horizontal position connecting terminal 33 in elastic contact with each other. In addition, as shown in FIG. 7, in a state where the heater 10 is disposed in a horizontal position, the first housing 22, the first connection terminal 38, and the first connection line coupled to the first wire 20. 36, and the first wire 20 is electrically connected to the first end 11 of the heater 10 via the first horizontal position connecting terminal 32 and to the second wire 21 in the same manner. The combined second housing 23 is connected to the second wire 21 through the second connecting terminal 39, the second connecting line 37, and the second horizontal position connecting terminal 33. By being electrically connected to the second stage 12 it is possible to receive power in a state in which the heater 10 is arranged in a horizontal position.

When the heater 10 is switched to the vertical position in the state where the heater 10 is disposed in the horizontal position as described above, as shown in FIGS. 5 and 6, the first elastic piece 13 is positioned in the first vertical position. The contact terminal 34 is elastically in close contact with each other, and the second elastic piece 14 is in contact with the second vertical position connecting terminal 35 in elastic contact with each other. In addition, as shown in FIG. 7, the first wire 20 through the first housing 22, the first connection terminal 38, the first connection line 36, and the first vertical position connection terminal 34. ) Is electrically connected to the first end 11 of the heater 10, the second housing 23, the second connecting terminal 39, the second connecting line 37, and the second vertical position connecting terminal ( The second wire 21 is electrically connected to the second end 12 of the heater 10 through the 35 so that the heater 10 can be supplied with power in a vertical position.

As described in detail above, the power connection structure of the heater according to the present invention is coupled so that the heater can be switched to the horizontal position and the vertical position to the connection terminal of the connection mechanism, the housing of the wire is connected to the connection terminal of the connection mechanism Since the wire is connected to the connected connection terminal, the wire can be fixedly connected regardless of the switching operation between the horizontal position and the vertical position of the heater. There is no effect of shorting. Therefore, according to the power supply structure of the heater according to the present invention, the repair of the heater is almost unnecessary.

1 is a schematic cross-sectional view of a general cooker showing that a heater is installed in a cooking chamber.

2 is a view showing a power connection structure of a heater according to the prior art.

3 is a view showing a power connection structure of the heater according to the present invention.

4 is an exploded perspective view showing that the heater is connected to the connecting mechanism shown in FIG. 3 in a horizontal position.

5 is an exploded perspective view showing that the heater is connected to a vertical position in the connecting mechanism shown in FIG.

6 is a front view of one surface of the connecting mechanism showing the arrangement of the connection terminals corresponding to the vertical position and the horizontal position of the heater.

Figure 7 is a perspective view of the other side of the connecting mechanism showing a structure in which the connection terminal and the connection terminal electrically connected to the housing of each wire.

* Description of symbols on the main parts of the drawings

 10: heater 13,14: elastic piece

 20, 21: wire 23, 24: housing

 30: connector 32, 33: horizontal position connecting terminal

 34,35: vertical position connection terminal 36,37: connection line

 38,39: connection terminal

Claims (7)

A heater installed rotatably between a vertical position and a horizontal position, A plurality of wires for supplying power to the heater, A disc is formed at one end and the other end is formed in an open cylindrical shape so that both ends of the heater are disposed in front of the disc and the plurality of wires are isolated in an electrically connected state with both ends of the heater. And a connection mechanism provided at both ends of the heater to enable a switching operation between a vertical position and a horizontal position with the plurality of wires fixed thereto. According to claim 1, wherein a pair of vertical position connecting terminals to contact both ends of the heater in a state in which the heater is disposed vertically on the front surface of the disk facing the heater, the heater is arranged horizontally A pair of horizontal position connecting terminals protrude from each other so that both ends of the heater are in contact with each other, and a line connecting the pair of vertical position connecting terminals and a line connecting the pair of horizontal position connecting terminals are constant with each other. Power connection structure of the heater, characterized in that arranged to cross at an angle. 3. The connector of claim 2, wherein the pair of vertical position connecting terminals comprise first and second vertical position connecting terminals and are arranged up and down in front of the disc, and the pair of horizontal position connecting terminals are first and second. The first vertical position connecting terminal and the first horizontal position connecting terminal arranged up and down so as to be spaced apart from the first and second vertical position connecting terminals by a predetermined distance, respectively, the horizontal position connecting terminals The second vertical position connecting terminal and the second horizontal position connecting terminal which are electrically connected to each other by a first connecting line disposed at the rear of the disc, and the second horizontal position connecting terminal arranged at the bottom of the disc, are connected to the first connecting line at the rear of the disc. The power connection structure of the heater, characterized in that electrically connected to each other by a second connection line disposed in the lower portion of the. The method of claim 3, wherein the first connection line is coupled to the first connection terminal is coupled to any one of the plurality of wires to be coupled, and the other one of the plurality of wires is inserted into the second connection line Power connection structure of the heater, characterized in that the second connection terminal is coupled to be coupled. 5. The power connection structure of a heater according to claim 4, wherein a housing is formed at an end of each wire so as to be inserted into and coupled to each connection terminal. The power supply structure of claim 2, wherein an elastic piece is attached to both ends of the heater to be in contact with the pair of horizontal position connecting terminals and the vertical position connecting terminals. 7. The power supply structure of claim 6, wherein the elastic piece comprises a leaf spring.