JPH0933363A - Temperature measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the mounting of a thermistor. SOLUTION: A ceramic plate piece 2 having a thermistor 3 formed on the surface by thick film method such as screen printing is mounted on the tip of a drawing cord 1, the outer surface of the ceramic plate piece 2 and thermistor 3 is covered with a resin coating material 8, its outer surface is enclosed by a thermally contracting tube 7, the outer surface of the thermally contracting tube 7 is further enclosed by aluminium foil, copper foil, aluminium tape, copper tape, other metal foils, metal tapes or a metal pipe 9, and a bracket having elastic nipping pieces 14, 14 which can be elastically expanded and mounted on a temperature measuring part only by being pushed thereto is mounted on the metal pipe 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature measuring device.

[0002]

2. Description of the Related Art Japanese Patent Application No. 6-2 of the prior application relating to the application of the applicant
In the specification and drawings of No. 82564, a ceramic plate piece such as alumina is attached to the tip of the drawing cord, and a thermistor is formed on the surface of the ceramic plate piece by a thick film method such as screen printing. Is soldered to a thermistor, the ceramic plate piece and the thermistor are resin-coated with a coating resin, and the outer surface thereof is surrounded by a heat-shrinkable tube.

[0003]

Since the invention of the prior application is surrounded by the heat-shrinkable tube, when the heat-shrinkable tube shrinks by heat, the ceramic plate piece or the thermistor part shrinks. It can be formed into a thin shape as shown in, and has excellent thermal responsiveness. However, if the outer surface of the heat-shrinkable tube is surrounded by a metal, the heat-shrinkable tube can be further improved in thermal response. As described above, if the outer surface of the heat-shrinkable tube is further surrounded by the metal, it is difficult to attach the heat-shrinkable tube to the temperature measuring unit.

[0004]

According to the present invention, therefore, a ceramic plate piece having a thermistor formed on the surface thereof by a thick film method such as a screen printing method is attached to the tip of a drawing cord, and the ceramic plate piece and the sir plate are attached. The outer surface of the mister is coated with a resin coating material and the outer surface is surrounded by a heat shrink tube, and the outer surface of the heat shrink tube is made of aluminum foil, copper foil, aluminum tape, copper tape, other metal foil, metal tape or metal. The temperature measuring device has a structure in which it is surrounded by a pipe, and a mounting member having an elastic holding piece that can be elastically spread and attached by being pressed against the temperature measuring unit is attached to the temperature measuring device. Further, according to the present invention, a ceramic plate piece 2 having a thermistor 3 formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord 1, and the ceramic plate piece 2 and the outer surface of the thermistor 3 are The outer surface of the heat-shrinkable tube 7 is coated with a resin coating material 8, and the outer surface of the heat-shrinkable tube 7 is surrounded by a metal tube 9. The metal tube 9 is formed by sheet metal working of a thin metal plate. Mounting bracket 11 having elastic clamping portions 14, 14 that spread out in a substantially C-shape
The upper surface 16 is fixed to the central mounting portion 12 in a state where the entire surface is exposed, and when the elastic holding piece 14 is pressed against the temperature measuring portion 17, the upper surface 16 is elastically spread and held, so that the upper surface 16 is held at the temperature measuring portion. This is a temperature measuring device which is attached in close contact with the device 17. Further, according to the present invention, a ceramic plate piece 2 having a thermistor 3 formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord 1, and the ceramic plate piece 2 and the outer surface of the thermistor 3 are The outer surface of the heat-shrinkable tube 7 is coated with the resin coating material 8 and is surrounded by the heat-shrinkable tube 7. The outer surface of the heat-shrinkable tube 7 is surrounded by the metal tube 9 while leaving the base portion 7a, and the metal tube 9 is made of thin metal. The both sides formed by sheet metal working of the plate are attached to the central mounting portion 12 of the mounting metal fitting 11 having elastic sandwiching portions 14 and 14 which spread in a substantially C-shape, and are wound on the base side of the mounting metal fitting 11. This is a temperature measuring device in which the portion 13 is integrally formed, and the winding portion 13 is wound around and fixed to the base portion 7a side of the heat shrinkable tube 7.

[0005]

EXAMPLE A temperature measuring device of the present invention comprises a temperature measuring unit consisting of a thermistor attached to a temperature measuring unit of an ordinary air conditioner,
It can also be applied to a temperature measuring unit consisting of a thermistor attached to a water heater or other temperature measuring unit.

Although the embodiment shown in FIGS. 1 and 2 is disclosed in the above-mentioned prior application, it is not publicly known so far. First, this will be described as follows. In the figure, 1 is a withdrawal cord, 2 is a ceramic plate piece attached to the tip thereof, 3 is a thermistor formed on the surface of the ceramic plate piece 2 by a thick film method such as screen printing, and 4 is a projection from the thermistor 3. At the terminal, the cored bar wire 5 of the lead-out cord 1 is inserted from the back surface side to the front surface side of the ceramic plate piece 2 as shown in FIG. The ceramic plate piece 2 and the thermistor 3 are protected by a resin coating for waterproofing. At this time, if the resin coating is performed by immersing the portion to be coated in a resin solution for coating and pulling up the resin, the coating may not be uniform because the droplet drops and becomes thin or thick.

However, as shown in FIG. 1, the heat-shrinkable tube 7
The resin coating material 8 is previously coated to a thickness of 0.1 mm to 1 mm on the inside of the, and the ceramic plate piece 2 and the thermistor 3 are coated with the resin and heat-shrinked, and a uniform thickness is obtained as shown in FIG. The finished product has a uniform thickness.

Therefore, as described above, the heat shrinkable tube 7
The product that has been coated with is uniform in thickness, and the thickness of the completed product is uniform, so the heat followability (thermal response) is extremely good. Since the followability is further improved, in the present application, the outer surface of the heat-shrinkable tube 7 is surrounded by aluminum foil, copper foil, aluminum tape, copper tape, other metal foil, metal tape, or metal tube 9. The most suitable of the metal tubes 9 is an elastic metal tube 9 having a slit 10.
Then, the heat-shrinkable tube 7 is elastically spread and fitted to the outer surface of the heat-shrinkable tube 7 without any gap. Further, the metal tube 9 surrounds only the front side, excluding the base portion 7a of the heat-shrinkable tube 7.

FIGS. 6 to 8 show an embodiment in which the temperature measuring device is mounted on a mounting metal fitting 11. The mounting metal fitting 11 is entirely formed by sheet metal working of a thin metal plate, and the metal pipe 9 is mounted at the center. A portion 12 and a winding portion 13 that is wound around the base portion 7a of the heat shrinkable tube 7 with the metal tube 9 mounted on the mounting portion 12.
Elastic clamping portions 1 provided on both sides of the mounting portion 12 and extending in a substantially C shape.
4 and a claw 15 that presses the head of the metal tube 9 when bent. The length of the mounting portion 12 is slightly shorter than that of the metal tube 9, and when the head of the metal tube 9 is bent and pressed by the claw 15, the portion facing the winding portion 13 is the base portion 7 of the heat-shrinkable tube 7.
a. Therefore, the winding part 13 is the heat-shrinkable tube 7.
Since the metal tube 9 is wound around, the metal tube 9 can be securely attached without being deformed. It should be noted that the upper surface 16 of the metal pipe 9 is almost entirely exposed, and when the elastic holding portions 14, 14 are pressed against a pipe-shaped temperature measuring portion 17 such as a cooler, the metal pipe 9 is elastically spread and mounted, as shown in FIG. The upper surface 16 of 9 is the temperature measuring unit 1.
Stick to 7.

[0010]

The thermistor 3 is formed on the surface of the ceramic plate piece 2 of a desired size by a thick film method such as screen printing, and the thermistor 3 is attached to the tip of the withdrawal cord 1.
Insert the core wire 5 from the back side of the ceramic plate piece 2 into the terminal 4
And then solder 6 to the ceramic plate piece 2
The portion of the thermistor 3 is covered with a heat-shrinkable tube 7 which is coated with a resin coating material 8 in a thickness of 0.1 mm to 1 mm in advance to cause heat shrinkage.

The outer surface of the heat-shrinkable tube 7 is surrounded by aluminum foil, copper foil, aluminum tape, copper tape, other metal foil, metal tape, or metal tube 9. In the embodiment, the metal tube 9 having the slit 10 is used, but the metal tube 9 having the slit 10 elastically spreads, so that the metal tube 9 easily fits and closely adheres to the outer surface of the heat-shrinkable tube 7 without a gap. The temperature measuring device formed in this way is attached to the attachment fitting 11. The mounting bracket 11 is formed by sheet metal working of a thin metal plate, and has a mounting portion 12 for mounting the metal tube 9 and a claw 15 for pressing the head of the mounting portion 12 with the metal tube 9 mounted thereon. Therefore, the metal tube 9 is mounted on the mounting portion 12 after the claw 15 is bent.

Then, the winding portion 13 of the mounting member 11 faces the base portion 7a of the heat-shrinkable tube 7 where the metal tube 9 does not exist. The metal tube 9 does not deform even when wound. At this time, the entire upper surface 16 of the metal tube 9 is exposed,
Elastic clamp 1 for mounting on temperature measuring parts such as coolers
When 4 and 14 are pressed against the temperature measuring portion 17, they are elastically spread and easily attached, and the upper surface 16 of the metal tube 9 is attached as shown in FIG.
Adheres to the temperature measuring unit 17 and measures the temperature well.

[0013]

INDUSTRIAL APPLICABILITY According to the present invention, the thermistor 3 is attached to the tip of the withdrawal cord 1 by a thick film method such as screen printing on the surface.
The ceramic plate piece 2 formed with is attached, and the outer surfaces of the ceramic plate piece 2 and the thermistor 3 are coated with a resin coating material 8 and the outer surface is surrounded by a heat shrink tube 7, and the outer surface of the heat shrink tube 7 is covered. An elastic clamp which can be attached by being spread elastically by being surrounded by aluminum foil, copper foil, aluminum tape, copper tape, other metal foil, metal tape or metal tube 9 and being pressed against the temperature measuring unit 17 Since the temperature measuring device is configured by mounting the mounting bracket 11 having the pieces 14 and 14, the outer surfaces of the ceramic plate piece 2 and the thermistor 3 are coated with the resin coating material 8 and the outer surfaces thereof are heat-shrinkable tubes 7. Since it is surrounded by, it can be made into a thinly tightened shape and has excellent thermal response, and the outer surface of the heat shrinkable tube 7 Luminium foil, copper foil, aluminum tape, copper tape, other metal foil, metal tape, or metal tube 9 makes it even more excellent in thermal responsiveness because it is surrounded by metal tube 9. Since the mounting bracket 11 having the elastic holding pieces 14, 14 that can be spread over the entire surface is mounted, there is an effect that a temperature measuring device having easy mounting and good thermal response can be obtained. Further, according to the present invention, a ceramic plate piece 2 having a thermistor 3 formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord 1, and the ceramic plate piece 2 and the outer surface of the thermistor 3 are The outer surface of the heat-shrinkable tube 7 is coated with a resin coating material 8, and the outer surface of the heat-shrinkable tube 7 is surrounded by a metal tube 9. The metal tube 9 is formed by sheet metal working of a thin metal plate. The upper surface 16 is fixed to the central mounting portion 12 of the mounting bracket 11 having the elastic clamping portions 14 and 14 which are spread out in a substantially C shape, and the elastic clamping piece 14 is fixed to the temperature measuring portion 17. The upper surface 16 of the metal tube 9 is entirely exposed because the upper surface 16 is attached in close contact with the temperature measuring unit 17 by being elastically spread and pinched when pressed. Since it has to, attached in close contact with the temperature measuring unit 17, a thermally responsive good temperature measuring device is Tokuraru effect. Further, according to the present invention, a ceramic plate piece 2 having a thermistor 3 formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord 1, and the ceramic plate piece 2 and the outer surface of the thermistor 3 are The outer surface of the heat-shrinkable tube 7 is coated with the resin coating material 8 and is surrounded by the heat-shrinkable tube 7. The outer surface of the heat-shrinkable tube 7 is surrounded by the metal tube 9 while leaving the base portion 7a, and the metal tube 9 is made of thin metal. Both sides of the plate formed by sheet metal processing are spread out in a substantially V shape, and the elastic clamping unit 1
4 and 14 are attached to the central mounting portion 12 of the mounting bracket 11, and a winding portion 13 is integrally formed on the base side of the mounting bracket 11, and the winding portion 13 is attached to the heat shrink tube 7. Since the temperature measuring device is wound around the base 7a and fixed, the outer surface of the heat-shrinkable tube 7 has the base 7a.
, The front side is surrounded by the metal tube 9, and the winding part 13 is integrally formed on the base side of the mounting bracket 11, and the winding part 13 is wound around the base 7a side of the heat shrink tube 7. The metal tube 9 is not deformed even if it is strongly tightened.

[Brief description of drawings]

FIG. 1 is a perspective view of a temperature measuring unit surrounded by a heat shrink tube.

FIG. 2 is an exploded perspective view in which the outer surface of the temperature measurement diagram surrounded by a heat-shrinkable tube is surrounded by a split metal tube.

FIG. 3 is an overall side view of the present application.

FIG. 4 is a left side view of the same.

FIG. 5 is a vertical sectional view of the same.

FIG. 6 is a perspective view with a mounting bracket attached.

FIG. 7 is a side view with a mounting bracket attached.

FIG. 8 is a left side view with a mounting bracket attached.

[Explanation of symbols]

1 ... Drawout cord, 2 ... Ceramic plate piece, 3 ... Thermistor, 4 ... Terminal, 5 ... Core wire, 6 ... Soldering, 7
... Heat shrink tube, 7a ... Base, 8 ... Resin coating material, 9 ... Metal tube, 10 ... Slit, 11 ... Mounting bracket, 1
2 ... Mounting part, 13 ... Wrapping part, 14 ... Elastic clamping part, 15 ...
Claws, 16 ... Top surface, 17 ... Temperature measuring unit.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yosei Kobayashi 1-17-17 Numakage, Urawa City, Saitama Ichinuma 1-17-17 Mitsui Kinzoku Mining Co., Ltd. Thermistor Division, Parts Processing Division

Claims (3)

[Claims] 1. A ceramic plate piece on the surface of which a thermistor is formed by a thick film method such as screen printing is attached to the tip of the withdrawal cord, and the ceramic plate piece and the outer surface of the thermistor are coated with a resin coating material. The outer surface of the heat-shrinkable tube is surrounded by a heat-shrinkable tube, and the outer surface of the heat-shrinkable tube is surrounded by an aluminum foil, a copper foil, an aluminum tape, a copper tape, another metal foil, a metal tape, or a metal tube, and a temperature measuring unit is attached to this. A temperature measuring device equipped with a mounting bracket with elastic clamping pieces that can be elastically expanded and mounted by simply pressing it against. 2. A ceramic plate piece 2 having a thermistor 3 formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord 1, and the outer surface of the ceramic plate piece 2 and the thermistor 3 is made of resin. The outer surface of the heat-shrinkable tube 7 is coated with the coating material 8, and the outer surface of the heat-shrinkable tube 7 is surrounded by a metal tube 9. The elastic clamp 14 is fixed to the central mounting portion 12 of the mounting bracket 11 having the elastic clamping portions 14, 14 spreading in a V shape in a state where the upper surface 16 is entirely exposed.
A temperature measuring device in which the upper surface 16 is attached in close contact with the temperature measuring unit 17 by being elastically spread and pinched when pressed against. 3. A ceramic plate piece (2) having a thermistor (3) formed on the surface thereof by a thick film method such as screen printing is attached to the tip of the withdrawal cord (1), and the outer surface of the ceramic plate piece (2) and the thermistor (3) is made of resin. The outer surface of the heat-shrinkable tube 7 is coated with the coating material 8 and is surrounded by the heat-shrinkable tube 7. The outer surface of the heat-shrinkable tube 7 is surrounded by the metal tube 9 while leaving the base 7a, and the metal tube 9 is a thin metal plate. The mounting portion 12 at the center of the mounting bracket 11 having elastic clamping portions 14 and 14 which are formed by sheet metal working on both sides and spread out in a substantially V-shape.
And a winding part 13 is integrally formed on the base side of the mounting bracket 11, and the winding part 13 is attached to the heat-shrinkable tube 7.
A temperature measuring device wound around and fixed to the base portion 7a side.