JPH06313737A - Temperature sensor cooker - Google Patents

Abstract

PURPOSE:To obtain a temperature sensor for a cooler with a structure that enables the shortening of assembling work time while curtailing cost of members with easier assembling by reducing the number of components. CONSTITUTION:A guide post 29 is provided inside a holder 2 as component of a heat sensitive body 4. A magnet holder 23 including a permanent magnet 11 for operating a reed switch is provided with a guide hole 32 without horizontal deviation to slip the guide post 29 vertically. This enables the movement of the holder thereby reducing the required number of permanent magnets 11 to one only.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature sensor for a cooking device for detecting the temperature of an inner pot which is a heated body of a rice cooker consisting of an outer pot and an inner pot detachable from the outer pot.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a conventional temperature sensor for a cooking device. A heat sensitive body 4a is formed by the lid 1a, the holder 2a, the inner case 20, and the heat sensitive element 3a, and the protective tube 21a is provided in the recess 5a provided in the holder 2a.
The thermosensitive element 3a protected by is attached. The terminal 22 is fixed to the lower portion of the holder 2a with an adhesive or the like after being press-fitted or inserted. The temperature sensitive element 3a is provided at the terminal 22.
6a is spot-welded, the lead of the detection element 7a is spot-welded, and the lead wire 8a is spot-welded. After the lead wire 8a is spot welded,
After being hooked on the locking portion 9a of the holder 2a, it is led out to the outside. The holder 2a fits inside the inner case 20 and is covered with the lid 1a. By caulking the side edge of the lid 1a, the holder 2a is fixed in the inner case 20 and the heat sensitive body 4a is formed. The outer case 10a includes a permanent magnet 11a and a magnet holder 23a. The heat sensitive body 4a has a cut-and-raised portion 24 inserted into a slit hole 25 of the outer case 10a via a coil spring 12a, and is held so as to be vertically movable.

[0003]

In the conventional structure as shown in FIG. 3, when the heat sensitive body 4a moves downward due to the mounting of the object to be heated, the horizontal blurring (left and right direction in the figure) is caused.
Occurs, the permanent magnet 1 for operating the detection element is generated.
There is a drawback that a plurality of 1a must be installed.

[0004]

In order to solve the above-mentioned problems, a temperature sensor for a cooker according to the present invention is shown in FIGS.
As shown in, the guide column 29 provided inside the holder 2 which is a component of the heat sensitive body 4 is inserted into the guide hole 32 provided in the magnet holder 23 having the permanent magnet 11 for operating the detection element 7, The vertical movement of the heat sensitive body 4 incorporating the detection element 7 is made to move in a stable manner without lateral deviation.

Further, the magnet holder 23 having the permanent magnets 11 is attached to the holder 2 constituting the heat sensitive body 4.
The insertion port 33 for inserting the claw 28 provided in the above is provided.

Further, the magnet holder 23 is characterized by being fixed by a protrusion 31 provided on the outer case 10 for protecting the heat sensitive body 4.

[0007]

By inserting the guide column provided inside the holder constituting the heat sensitive body into the guide hole provided in the magnet holder, the detection element fixed to the holder moves vertically downward by mounting the body to be heated. When moving, it is possible to narrow the range of the horizontal blur, so that the number of permanent magnets provided in the magnet holder can be reduced, the material cost is reduced, and the working time is also reduced.

[0008]

FIG. 1 shows a temperature sensor for a cooking device according to the present invention. The heat sensitive body 4 is attached to the magnet holder 23 via the coil spring 12 and is movable in the vertical direction. The heat sensitive body 4 includes a lid 1, a protective tube 21, a holder 2, a heat sensitive element 3, a detection element 7, a crimp terminal 26, and a lead wire 8. The holder 2 is provided with a concave portion 5 for mounting the temperature sensitive element, and a guide column 29 to be inserted into the magnet holder 23 and a locking portion 9 are provided inside, and the lead wire 8 is fitted into the locking portion 9. The crimp terminal 26 is fixed.

After the thermosensitive element 3 is inserted into the protective tube 21, the detecting element 7 and the lead wire 8 are crimp-connected to each other outside the holder 2 by the crimp terminal 26, and the thermosensitive element 3 is inserted into the recess 5 of the holder 2. , The lead wire 8 is fitted into the locking portion 9, and the crimp terminal 26 is fixed so that the crimp terminal 26 is not caught and does not come off.
The heat sensitive body 4 is formed by pressure bonding to.

The heat sensitive body 4 is incorporated into the magnet holder 23 to which the permanent magnet 11 is fixed with an adhesive agent or the like via the coil spring 12, so that the holder 2 is supported by the claw 28 and the guide pillar 29 provided on the holder 2. With the magnet holder 23 movable vertically downward,
By mounting the outer case 10 and bending and fixing the magnet holder 23 to the protrusion 31 provided on the outer case 10, the temperature sensor for a cooker of the present invention is completed.

[0011]

As described above, according to the present invention, the guide pole provided inside the holder is inserted into the guide hole provided in the magnet holder to stabilize the vertical movement of the detection element, thereby enabling the permanent magnet to operate. The temperature sensor for cooking device can be provided at low cost because the manufacturing cost is reduced and the material cost is reduced and the working time is shortened.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the structure of a temperature sensor for a cooker according to the present invention, (a) is a plan view, (b) is an external front view,
(C) is a cross-sectional view taken along the line A-A of (a), and (d) is a line B- of (a).
B sectional drawing, (e) is the top view seen from the bottom face direction.

2A and 2B are sectional views illustrating details of a holder and a magnet holder of a temperature sensor for a cooker according to the present invention, FIG. 2A is a front sectional view of the holder, and FIG. 2B is a front sectional view of the magnet holder.

3A and 3B are explanatory views showing the structure of a conventional temperature sensor for a cooker, where FIG. 3A is a plan view, FIG. 3B is an external front view, and FIG. 3C is a sectional view taken along line AA of FIG. Is a cross-sectional view taken along the line BB of (a), and (e) is a plan view seen from the bottom surface direction.

[Explanation of symbols]

 1, 1a Lid 2, 2a Holder 3, 3a Temperature Sensitive Element 4, 4a Heat Sensitive Body 5, 5a Recess 6,6a Lead 7, 7a Detection Element 8, 8a Lead Wire 9, 9a Locking Part 10, 10a Outer Case 11, 11a Permanent magnet 12, 12a Coil spring 20 Inner case 21, 21a Protective tube 22 Terminal 23, 23a Magnet holder 24 Cut-and-raised part 25 Slit hole 26 Crimping terminal 28 Claw 29 Guide post 31 Projection part 32 Guide hole 33 Insertion port

Claims (3)

[Claims] 1. The presence or absence of the object to be heated is detected by a detection element provided on the object to be heated when the object to be heated is moved by mounting the object to be heated, and the temperature of the object to be heated is provided to the object to be heated. In a temperature sensor for a cooker that detects a heat-sensitive element, a guide column is provided inside a holder that constitutes the heat-sensitive body, and the guide column is vertically movable in a magnet holder that includes a permanent magnet that operates the detection element. A temperature sensor for a cooking device, which is provided with a hole. 2. The detection element according to claim 1, wherein the detection element is a reed switch, and a magnet holder having a permanent magnet for operating the reed switch is provided with an insertion opening for inserting a claw provided in the holder. The temperature sensor for the cooker. 3. The magnet holder according to claim 1,
A temperature sensor for a cooker, wherein a protrusion provided on an outer case for protecting the heat sensitive body is bent and fixed.