JPH0736606Y2 - Electric cooker temperature controller - Google Patents

Description

[Detailed description of the device]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature controller for an electric cooker for adjusting the heating temperature of a cooking plate placed on the cooker body.

[0001]

2. Description of the Related Art In an electric cooker, a cooking plate detachably placed on the cooking device body can be heated by a heater to heat and cook meat and vegetables placed on the cooking plate. ,
People who surround the electric cooker can enjoy a meal while cooking. The heating temperature of the cooking plate is freely adjusted by the temperature controller provided in the electric cooker. The temperature controller of the electric cooker includes, for example, the technology described in Japanese Utility Model Laid-Open No. 1-99331.

In this electric cooker, as shown in FIG. 5, a reflector 101 is provided inside the cooker main body 100, and a groove 103 is provided on the upper surface of a heater fixing base 102 fixed on the reflector 101. The heater 103 is fixed to the groove 103, and the cooking plate 104 is detachably placed on the heater 103. A square hole 105 is provided in the reflection plate 101, and a hole wall 106 is provided around the periphery of the hole 105.

The heat transfer body 107 has a heat receiving portion 108 that comes into contact with the outer bottom surface of the cooking plate 104, and a square column-shaped lower portion 109 that extends on the lower surface of the heat receiving portion 108, and the lower portion 109 is the hole wall 106. The spring 110 is slidably inserted into the heat receiving portion 1 and is inserted between the reflecting plate 101 and the heat receiving portion 108.
08 is pressed against the cooking plate 104. A screw hole 111 is provided on the lower surface of the lower portion 109, a screw 113 penetrating the thermostat 112 is screwed into the screw hole 111, and the thermostat 112 is fixed to the heat transfer body 107.

A screw 114 for adjusting the operating temperature of the thermostat 112 is attached to one end of a lever 116 which penetrates an elongated hole 115 provided in the cooker main body 100.
At the other end of the lever 116, a knob 117 that is operated from the outside of the cooker main body 100 is provided, and the temperature controller A that adjusts the heating temperature of the cooking plate 104 by operating the knob 117.
Is configured.

[0005]

In order to assemble the temperature controller A constructed as described above to the cooker body, the hole wall 1
The electric heating element 107 inserted in 06 is pressed against the spring 110, abuts against the thermostat 112 gripped on the opposite side of the electric heating element 107 with respect to the reflection plate 101, and the tip of the screw 113 inserted into the thermostat 112 and the electric heating element 107. Assembling the temperature controller A was a difficult task because it had to be screwed in alignment with the screw hole 111. The present invention aims to solve such problems, and provides a temperature controller that can be assembled very easily.

[0006]

In order to achieve the above object, the present invention provides an upper wall and a lower wall at the upper and lower ends of a side wall inside a cooker body on which a cooking plate is detachably mounted. U-shaped support metal fittings are fixed, vertically elongated holes are formed in the side wall, a notch opening is formed in the upper wall at the end, a shaft hole is formed in the lower wall, and an intermediate hole is formed in the middle. A screw hole of the sensing metal fitting is screwed into the male screw of the elevating shaft in which a collar portion is formed and a male screw is screwed at one end, and between the sensing metal fitting and the collar portion,
A bimetal, a movable contact plate which is driven by the bimetal to open a contact, a support arm which is screwed with a rotary shaft for adjusting the temperature driven by the bimetal by displacing the movable contact plate, and a tip having the vertically elongated hole. And a rotation stopper fitting engaged with the outer casing, and a lever operated from the outside of the exterior body is fixed to the rotating shaft, the other end of the elevating shaft is inserted into the shaft hole, and the collar portion is formed. By means of a spring inserted between the lower wall and the lower wall, the sensing fitting is pressed against the cooking plate through the cutout opening.

[0007]

In the temperature controller of the electric cooker configured as described above, the sensing metal fitting is screwed onto one end of the elevating shaft, and the bimetal and the contact point driven by the bimetal are connected between the collar portion and the sensing metal fitting. A movable contact plate that opens, a support arm that engages with a rotating shaft that adjusts the temperature driven by the bimetal by displacing the movable contact plate, and a rotation stopper fitting whose tip engages with the vertically elongated hole are polymerized. , Assemble beforehand in advance. On the other hand, when the support fitting is fixed inside the cooker body and the other end of the elevating shaft through which the spring is inserted is inserted into the shaft hole of the support fitting and the spring is compressed, the sensing fitting can be inserted into the notch opening of the support fitting. become,
The sensing bracket can be attached to the support bracket with one touch.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a temperature controller A ₁ assembled to an electric cooker B, and FIG. 2 is a perspective view of the temperature controller. 3 is a longitudinal sectional view of the electric cooker, and FIG. 4 is a perspective view of the electric cooker B. The electric cooker B shown in FIG. 3 is a rotary electric cooker in which the cooker body 1 and the cooking plate 2 rotate, but the temperature controller A ₁ of the present invention can be attached to an electric cooker that does not rotate. .

The cooker main body 1 comprises an exterior body 4 on which the cooking plate 2 is placed, and a fixed base 3 on which the exterior body 4 is rotatably placed. The exterior body 4 has a peripheral wall 6 at the peripheral edge of the bottom wall 5.
Around the upper end of the peripheral wall 6, a rotating handle 7 having an inclination that expands outward is extended, and is provided between the fixed base 3 on which the bottom wall 5 is placed and the bottom wall 5. An electric unit 8 is provided,
When the rotating handle 7 is grabbed and turned, the exterior body 4 turns into a current collecting unit 8
It rotates in the horizontal plane about.

A plurality of support bases 9 are provided on the upper surface of the bottom wall 5 in the circumferential direction, and the bottomed holes 1 are formed on the upper surface of the support base 9.
0, a screw hole 11 is screwed into the bottom of the bottomed hole 10, and a cylindrical support leg 12 made of a heat resistant material is inserted into the bottomed hole 10. The heat shield plate 13 is a bottom plate 13a.
A side plate 13b is provided around the periphery of the base plate, a plurality of holes (not shown) are formed in the bottom plate 13a along the circumferential direction, and a screw 14 inserted into this hole is screwed through the support leg 12. It is screwed into the hole 11.

A heater support 15 is attached to the upper surface of the heat shield plate 13, a sheath heater 17 is inserted into a groove 16 formed in the upper surface of the heater support 15, and both walls of the groove 16 are caulked to form the sheath heater. Hold 17 The cooking plate 2 is detachably mounted on the sheathed heater 17.

As shown in FIGS. 1 and 2, the temperature controller A ₁ for controlling the heating temperature of the cooking plate 2 has a U-shaped support metal fitting 18 attached to the lower surface of the heat shield plate 13. The support fitting 18 has an upper wall 18b and a lower wall 18c provided at the upper and lower ends of a side wall 18a, a vertically elongated hole 19 provided in the side wall 18a, and two notched openings 20 and two openings at the end of the upper wall 18b. A mounting hole 39 for the lower wall 1
A shaft hole 21 is provided in 8c. A screw (not shown) inserted into the mounting hole 39 is screwed into the heat shield plate 13,
The support fitting 18 is attached to the lower surface of the heat shield plate 13.

The heat-sensitive rod 22 inserted into the shaft hole 21 has a flange portion 22a formed in the shape of a hexagon in the middle, and the male screw portion 22b at the tip is screwed into the screw hole 23a of the sensing fitting 23,
Between the sensing metal fitting 23 and the collar portion 22a, the pushing portion 2 is provided at the tip.
Bimetal 24 having 4a, insulator 25, fixed contact 26
The terminal plate 26 having a, the insulator 27, the movable contact plate 28 having the movable contact 28b at the tip of the spring plate 28a, the insulator 29, the support arm 30, and the rotation stopper fitting 31 whose tip is inserted into the vertically elongated hole 19 are superposed and tightened. To be done.

A male screw 33 provided on the rotary shaft 32 is screwed into a screw hole (not shown) provided on the support arm 30,
A lever 34 is fixed to the rotating shaft 32, and a connecting shaft 35 provided at the tip of the lever 34 is pivotally attached to the exterior body 4 and one end of which is projected from an opening 36 provided in the peripheral wall 6 (see FIG. 4). (See) engages at the other end.

Temperature controller A constructed as described above
₁ is a rotation stopper fitting 3 from the male screw 22b side of the heat sensitive rod 22
1, support arm 30, insulator 29, movable contact plate 28, insulator 2
7, the terminal plate 26, the insulator 25, and the bimetal 24 are inserted in this order, the sensing metal fitting 23 is screwed onto the male screw 22b and tightened, and they are integrally assembled before being attached to the support metal fitting 18.

Next, the lower end portion of the heat-sensitive rod 22 (male screw 22b)
The spring 38 is inserted into the outer periphery (on the side opposite to the side) of the heat sensitive rod 2 so that the sensing metal fitting 23 does not hit the upper wall 18a of the support metal fitting 18.
When the lower end of the male screw 22b is inserted into the shaft hole 21 and the heat sensitive rod 22 is pushed down to compress the spring 38 in the state where 2 is inclined, the sensing fitting 23 can be inserted into the notch opening 20.

Next, when the heat-sensitive rod 22 is erected and the tip of the rotation stopper fitting 31 is inserted into the vertically elongated hole 19, the temperature controller A ₁ is prevented from rotating and the sensing fitting 23 is inserted into the notch opening 20. The bimetal 24 is inserted into contact with the upper wall 18b, and the attachment of the temperature controller A ₁ is completed. The sensing fitting 23 is biased upward by a spring 38 and comes into pressure contact with the outer bottom surface of the cooking plate 2 placed on the cooker body 1.

When the operating lever 37 is set to a temperature set on a temperature scale (not shown) provided in the opening 36, the lever 34 engaging with the operating lever 37 rotates about the rotary shaft 32 as a fulcrum and rotates together with the lever 34. The moved male screw 33 of the rotating shaft 32 moves upward or downward along the screw hole of the support arm 30, and the distance between the movable contact plate 28 that is in pressure contact with the male screw 33 and the pushing portion 24a of the bimetal 24 is adjusted. The heating temperature of the cooking plate 2 is detected by the metal fitting 23 and the bimetal 24.
Is transmitted to the pusher 24 when it reaches a predetermined heating temperature.
a drives the movable contact plate 28 to cut off the energization of the sheath heater 17, and the cooking plate 2 is maintained at a predetermined temperature.

[0019]

Since the present invention is configured as described above, the temperature controller is integrally assembled before being attached to the electric cooker, and is attached to the electric cooker with a simple one-touch operation. be able to. Therefore, the installation of the temperature controller, which has been troublesome in the past, has become extremely simple, and the number of assembling steps of the electric cooker has been greatly reduced.

[Brief description of drawings]

FIG. 1 Temperature controller A ₁ attached to electric cooker B
FIG.

FIG. 2 is a perspective view of a temperature controller A ₁ .

FIG. 3 is a vertical sectional view of an electric cooker B.

FIG. 4 is a perspective view of an electric cooker B.

FIG. 5 is a vertical cross-sectional view showing a conventional example of a temperature controller A _{1 of} an electric cooker.

[Explanation of symbols]

A ₁ Temperature Controller B Electric Cooker 1 Cooker Main Body 2 Cooking Plate 4 Exterior Body 13 Heat Shield Plate 17 Sheath Heater 18 Support Metal Fitting 19 Vertically Long Hole 20 Cutout Opening 21 Shaft Hole 22 Heat Sensitive Rod 22a Collar 22b Male Screw 23 Sensing Metal Fitting 24 Bimetal 26 Terminal Board 28 Moving Contact Plate 30 Support Arm 31 Rotation Stopper 32 Rotating Shaft 33 Male Screw 34 Lever 38 Spring

Claims (1)

[Scope of utility model registration request] 1. A U-shaped support metal fitting is fixed to the inside of a cooker main body on which a cooking plate is removably mounted, and upper and lower walls are provided at the upper and lower ends of the side wall. A vertical hole is formed in the upper wall, a cutout opening is formed in the upper wall at the end, a shaft hole is formed in the lower wall, a flange is formed in the middle, and a male screw is screwed into one end. A screw hole of a sensing metal fitting is screwed into the male screw, a bimetal, a movable contact plate driven by the bimetal to open a contact, and the movable contact plate are displaced between the sensing metal fitting and the collar portion. A support arm for screwing a rotary shaft for adjusting the temperature driven by the bimetal and a rotation stopper fitting whose tip engages with the vertically elongated hole are overlapped, and a lever operated from the outside of the exterior body is used as the rotary shaft. And the other end of the elevating shaft is inserted into the shaft hole, and the collar portion and the The inserted spring between the wall, the temperature controller of the electric cooker of the sensing fixture, characterized in that pressure contact with the cooking plate via the cutout opening.