JP2796562B2 - Cooker thermistor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermistor for cooking utensils. The present invention can be used for other than cookware.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS.
Metal fittings e for attaching a thermistor d fixed to the end of the lead wire c on the lower surface side of the heat collecting metal member b elastically abutting on
Are fixed, the fixing fitting e is provided with an abutting plate portion g abutting against the inner surface f of the metal member b, and a corresponding abutting plate portion g.
It is publicly known that a storage portion h of a thermistor d that is more integrated and swells in a U-shape is formed, and the thermistor d is stored in the storage portion h with a lead wire c, and then fixed with a ceramic adhesive i. . In addition, conventionally known, Japanese Utility Model Application No. 63-249.
No. 7 (Japanese Utility Model Laid-Open No. 1-108220 )
Lum has a heat collecting metal member that elastically contacts the bottom of the cooker
A thermistor fixed to the tip of the lead wire is attached to the underside of the
Wherein the fixing bracket is fixed.
A contact plate portion contacting the lower surface of the metal member;
Thermistor storage section that is more integral than the section and swells in a U-shape
Is described . Japanese Patent Laid-Open Publication No. Hei 2-203817 discloses a U-shaped lead wire formed by storing a thermistor in a U-shaped thermistor storage portion of a fixing bracket in advance and forming a slit from the storage portion. A configuration is described in which a lead wire is fixed in advance by crushing a portion, and a metal fitting that accommodates the thermistor and fixes the lead wire is abutted and fixed to a cooking utensil.

[0003]

The problem to be solved by the present invention is shown in FIGS.
The cooker thermistor is used for detecting a defect in the heating state of the cooker. However, since there are various shapes of the bottom of the cooker, the heat collecting metal member b moves up and down by different kinds of cookers. In addition, when cooking Chinese food, the cooker moves violently, so that the vertical movement of the heat collecting metal member b is also severe. Therefore, the ceramic adhesive i may peel off, and the thermistor d may come off. Conventionally, improvement of the method of applying the ceramic adhesive i or the ceramic adhesive i
The above problems have been overcome by the improvement of the above-mentioned type, but satisfactory results have not been obtained. In addition, the aforementioned Japanese Utility Model Application No. 63-2
No. 497 is also described in the microfilm.
Since the wire is not fixed, the heat collecting metal member
The lowering may cause the thermistor to come off the sensor base.
Therefore, there is a problem similar to that shown in FIGS . In addition, the method disclosed in
Japanese Patent Application Laid-Open No. 2-203817 discloses a fixing bracket.
A U-shaped lead wire fixing part is formed with a slit
However, the direction of the U-shaped lead wire fixing part is opposite to that of the present application.
Thermistor in the U-shaped thermistor
The U-shaped lead wire fixing part and crush the lead wire.
And crush it in advance, and then fix it to the cooker later.
Good, not easy to install, heat welded later
Damages the thermistor .

[0004]

Therefore, according to the present invention, there is provided a fixing metal fitting 9 for mounting a thermistor 11 fixed to the tip of a lead wire 15 on the lower surface side of a heat collecting metal member elastically contacting the bottom of a cooking utensil 17. In the welded one, the fixing fitting 9
Is a contact plate portion 10 that is in contact with the lower surface of the metal member, a storage portion 12 of a thermistor 11 that is integral with the contact plate portion 10 and swells in a U shape, and a slit 13 is formed by the storage portion 12.
And swells in a U-shape toward the lower surface of the heat collecting metal member
From the lead wire fixing part 14 that can be pressed and crushed
The fixing bracket 9 formed and fixed to the heat collecting metal member
The thermistor 11 is inserted into the storage section 12 and stored.
Then, the lead wire fixing portion 14 is crushed and the lead wire 15 is
It is a thermistor for cookware characterized by being fixed . Further, the present invention is the cooker thermistor, wherein when the thermistor 11 is stored in the storage section 12, the storage section 12 is filled with silicon grease 16.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a metal holder made of a copper plate. The upper end opening 2 is formed in a cylindrical shape, and the lower end is narrowed to form a bottom wall 4 having a small-diameter through hole 3 at the center. A metal cap body 5 is provided in the upper end opening 2.
Is covered. The metal cap body 5 is detachably fitted to the metal holder 1 by a simple concave-convex engaging portion. The bottom wall 4
The vertical fixed support cylinder 6 is fitted in the through hole 3 provided in the vertical slidable manner. The upper end of the fixed support cylinder 6 protrudes into the metal holder 1, and the tray 7 is fixed there. The tray 7 is in sliding contact with the inner wall of the metal holder 1, and the metal holder 1 moves up and down smoothly. A coil spring 8 is provided between the tray 7 and the metal cap 5.
Is provided. Therefore, the metal cap body 5 moves upward by the elastic force of the coil spring 8 and moves down against the elasticity of the coil spring 8 when pressed by the cooking utensil.

[0006] At the lower surface of the metal cap body 5, fixing fittings 9 are spot-welded at approximately four places. The fixing bracket 9 is in contact with the lower surface of the metal cap body 5 and spot- welded to the contact plate 1.
0, a housing portion 12 of the thermistor 11 formed by bulging a central portion of the contact plate portion 10 downward, and a lead wire fixing portion 14 provided with a slit 13 from the housing portion 12. . The slit 13 is used for the collapse
2 so that it is within the intended range. The storage part 12 is also the lead wire fixing part 1
4 are also U-shaped when viewed from the side (they may be U-shaped and may not be at the same height), and are fixed fixtures.
9 , holding the lead wire 15 with the glass thermistor 11 attached to the tip, pushing the thermistor 11 part into the storage part 12, crushing only the lead wire fixing part 14 and fixing the lead wire 15 Is what you do. At this time, silicon grease 16 (epoxy resin may be used. In short, silicon grease 16 may be used as long as its thermal responsiveness can be adjusted). Further, the portion where the lead wire 15 is held may be covered with Teflon. Note that 17
Is a cooking utensil, 18 is a fixed stand on the gas stand side, and 19 is a cord.

[0007]

Next, the operation will be described. The contact plate 10 of the fixing metal 9 is brought into contact with the lower surface of the metal cap body 5 and spot-welded. After that, silicon grease 16 is packed in the storage section 12, and the lead wire 15 to which the thermistor 11 is attached is held at the tip,
The tip of the thermistor 11 is pushed through the lead wire fixing portion 14 and then into the storage portion 12 to crush the lead wire fixing portion 14. Then, the collapse of the lead wire fixing portion 14 does not reach the storage portion 12 due to the slit 13, and the lead wire fixing portion 1
Crush only 4 and securely fix it.

Therefore, according to the present invention, the thermistor does not come off even if the metal cap 5 moves up and down sharply. It is more effective to cover the outer surface of the lead wire 15 facing the inside of the lead wire fixing portion 14 with Teflon or the like.

[0009]

The thermistor for a cooking utensil shown in FIGS. 1 and 2 is used for detecting a problem in the heating state of a cooking utensil. The heat collecting metal member b moves up and down by the cooking utensil.
In addition, when cooking Chinese food, the cooker moves violently, so that the vertical movement of the heat collecting metal member b is also severe. Therefore, the ceramic adhesive i may peel off, and the thermistor d may come off. Conventionally, the above problem has been overcome by improving the method of applying the ceramic adhesive i or improving the type of the ceramic adhesive i, but a satisfactory result has not been obtained. In addition, the above-mentioned Japanese Utility Model Application Publication No.
What is written on the film is on the lower surface side of the heat collecting metal member
Although the U-shaped fixing bracket is fixed, the lead wire is fixed.
Since the heat collecting metal member is not fixed to the metal fittings,
When the lead wire moves up and down and the lead wire is pulled,
The thermistor may come off, as shown in FIGS.
It is similar to that of Further, Japanese Patent Application Laid-Open No. Hei.
No. 7 describes a slit in a fixing bracket.
And a U-shaped lead wire fixing portion is formed.
Since the direction of the lead wire fixing part is opposite to the direction of this application,
The thermistor is stored in advance in the storage section of the U-shaped thermistor,
Also crush the U-shaped lead wire fixing part through the lead wire in advance,
It is a configuration that abuts on the cooking utensil and fixes it later.
Thermistor is not attached to the
There is also the problem of breaking . However, according to the present invention, the fixing metal 9 for attaching the thermistor 11 fixed to the tip of the lead wire 15 is welded to the lower surface side of the heat collecting metal member elastically abutting on the bottom of the cooking utensil 17; An abutting plate portion 10 that abuts on a lower surface of the metal member;
A storage portion 12 of a thermistor 11 that is integral with the contact plate portion 10 and swells in a U shape, and a slit 1 is formed from the storage portion 12.
3 and swells in a U shape toward the lower surface of the heat collecting metal member
And a fixing member fixed to the heat collecting metal member, the fixing member being formed from a lead wire fixing portion 14 which can be pressed and crushed.
9 by inserting the thermistor 11 into the storage section 12
The lead wire fixing part 14 is crushed and the lead wire 15
Fixing it since it is obtained by the thermistor cooking device, characterized in that the abutment of the fixing bracket 9 to the lower surface of the metal cap body 5
The plate portion 10 is contacted and spot-welded.
2 is filled with silicon grease 16 and the thermistor 1
1 with the lead wire 15 attached
The star 11 is passed through the lead wire fixing portion 14 and then the storage portion 12
And crush the lead wire fixing part 14
There is a collapse of the lead wire fixing part 14 due to the slit 13
Only the lead wire fixing part 14 is crushed without reaching the storage part 12
And can be securely fixed.
Thermistor 1 as described on black film
There is no fear of the deviation of No. 1 described in JP-A-2-203817.
It is easier to manufacture than those described in the gazette. Also,
The present invention relates to the cooker thermistor, wherein when the thermistor 11 is stored in the storage section 12, the storage section 1 is provided.
2 is a thermistor for cooking utensils filled with silicon grease 16, so that the thermal responsiveness can be adjusted.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a known example.

FIG. 2 is a bottom view of a known example.

FIG. 3 is an overall vertical side view of the thermistor of the present invention.

FIG. 4 is a vertical side view of a heat collecting metal member according to the present invention.

FIG. 5 is a side view of the fixture according to the present invention.

FIG. 6 is a bottom view of the fixture according to the present invention.

FIG. 7 is a right side view of the fixture according to the present invention.

FIG. 8 is a view showing another embodiment of the metal cap body and the fixed support cylinder.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Metal holder, 2 ... Top opening, 3 ... Through hole, 4 ... Bottom wall,
5 metal cap body (heat collecting metal member), 6 fixed support cylinder, 7
Receiving tray, 8 ... Coil spring, 9 ... Fixing bracket, 10 ... Abutment plate, 11 ... Thermistor, 12 ... Storage part, 13 ... Slit, 14 ... Lead wire fixing part, 15 ... Lead wire, 16 ... Silicon grease (epoxy resin) ), 17 ... Cooker, 18
... gas stand side fixing part, 19 ... cord.

──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Yosei Kobayashi 1-17-17 Numakage, Urawa-shi, Saitama Mitsui Mining & Smelting Co., Ltd. Thermistor Division, Parts Processing Division (56) References JP-A-2-203817 ( JP, A) JP-A 1-108220 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 27/00-27/64 G01K 1/00-1/26 H01C 1 / 00-17/30

Claims (2)

(57) [Claims] 1. A fixing metal fitting 9 for attaching a thermistor 11 fixed to the tip of a lead wire 15 is welded to the lower surface side of a heat collecting metal member elastically abutting on the bottom of a cooking appliance 17, wherein the fixing metal fitting 9 is A contact plate portion 10 that contacts the lower surface of the metal member, a storage portion 12 of a thermistor 11 that is integral with the contact plate portion 10 and swells in a U-shape;
The heat collecting metal is swelled in a U-shape with a slit 13 from
And a lead wire fixing portion 14 that can be pressed and crushed toward the lower surface of the member and fixed to the heat collecting metal member.
The thermistor is inserted into the storage portion 12 of the fixed metal fitting 9.
11 is inserted and stored, and the lead wire fixing portion 14 is crushed.
A thermistor for cookware, wherein the lead wire 15 is fixed . 2. The thermistor according to claim 1, wherein when the thermistor 11 is stored in the storage section 12, the storage section 12 is filled with silicon grease 16.