JP2003083647A - Sensor fitting implement and sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensor fitting implement which makes it possible to enhance the detecting accuracy of a temperature sensor. SOLUTION: A metal sheet is doubled to be halves and the doubles portions are machined to be cylindrical substantially and made to be a sensor holding part 2. The portions continuing to the part 2 are further bent, machined to be formed substantially in the shape of a letter I and made to be half portions 4 of a connecting part. The portions continuing to the half portions 4 of the connecting part are further bent, machined to be formed substantially in the shape of a letter J respectively and made to be half portions 6 of a fitting part. The half portions 4 of the connecting part are brought into contact with each other and joined together integrally by spot welding or the like and thus the substantially cylindrical sensor holding part 2, the substantially I-shaped connecting part 3 and the substantially U-shaped fitting part 5 are formed. The temperature sensor 7 is fitted inside the sensor holding part 2, while a pipe 15 of a heat exchanger is fitted inside the fitting part 5. The heat on the pipe 15 side is transferred to the temperature sensor 7 through the fitting part 5, the connecting part 3 and the sensor holding part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor attachment and a sensor effective for attaching a temperature sensor to a pipe for circulating a heat exchange medium of a heat exchanger such as an air conditioner.

[0002]

2. Description of the Related Art Generally, various temperature sensors are attached to a pipe for circulating a heat exchange medium of a heat exchanger such as an air conditioner, and a signal from the temperature sensor controls the operation of the air conditioner. ing.

In this case, the temperature sensor is indirectly attached to the straight or bent portion of the pipe of the heat exchanger while the pipe is brazed.

[0004]

However, the method of directly mounting by brazing requires a brazing work, and thus the mounting is troublesome. Moreover, since the pipe is indirectly contacted with the pipe, the pipe is influenced by the surrounding air, and a temperature detection error increases, which makes it difficult to accurately detect the temperature on the pipe side.

On the other hand, in order to solve the above problems,
It has been proposed to attach the temperature sensor to the pipe of the heat exchanger using a fixture. One example is JP 2000
It is disclosed in Japanese Patent Publication No. 9545.

As shown in FIG. 11, the sensor attachment 21
Has a semi-circular semi-circular arc portion 22 at one end and an inner cut and raised portion 2
3 is provided, a semi-arcuate pipe semi-circular arc mounting portion 24 that bends in the same direction as the semi-circular arc portion 22 is provided at the other end, and a bending piece 25 that bends outward is provided at the tip of the pipe semi-circular arc attachment portion It is a thing.

Then, the sensor mount 2 having such a configuration
In order to attach the temperature sensor 27 to the pipe 30 of the heat exchanger using No. 1, the temperature sensor 27 is fitted in the semi-circular arc portion 22 and the temperature between the inner surface of the semi-circular arc portion 22 and the inner cut and raised portion 23 is increased. The sensor 27 is held, and in this state, the pipe 30 is pushed between the temperature sensor 27 and the bending piece 25 to fit the pipe 30 to the inner surface side of the pipe semi-circular arc mounting portion 24.

In this way, the temperature sensor 27 can be attached to the pipe 30 of the heat exchanger via the sensor attachment 21, and the temperature sensor 27 and the pipe 30 of the heat exchanger can be brought into close contact with each other. It is a thing.

However, in the sensor mounting member 21 having the above-mentioned structure, the temperature sensor 27 can be mounted easily because the work such as brazing is unnecessary.
Since only part of the temperature sensor 27 is in contact with the pipe 30 of the heat exchanger, the part of the temperature sensor 37 that is not in contact with the pipe 30 is affected by the ambient air, which causes an error in temperature detection. It becomes large, and it becomes difficult to accurately detect the temperature on the pipe 30 side.

The present invention has been made in view of the above-mentioned conventional problems, is easy to install, is not affected by ambient air, has a very small temperature detection error, and has a small pipe side. An object of the present invention is to provide a sensor mounting tool that can accurately detect the temperature of the.

[0011]

In order to solve the above problems, the present invention employs the following means. The sensor mounting tool of the present invention is a sensor mounting tool for mounting a temperature sensor on a pipe through which a heat exchange medium of a heat exchanger is circulated, the sensor mounting part holding the temperature sensor, and detachably mounted on the pipe. The above-mentioned problem is provided by including a mounting portion and a connecting portion that integrally connects the sensor holding portion and the mounting portion, and the sensor holding portion has a contact portion that contacts substantially the entire area in the circumferential direction of the temperature sensor. Solved. According to the sensor fitting of the present invention, the heat on the pipe side of the heat exchanger is transmitted to the temperature sensor via the mounting portion, the connecting portion, and the sensor holding portion, and the temperature on the pipe side is detected by the temperature sensor. Will be. In this case, the heat on the pipe side transmitted to the sensor holding portion via the attachment portion and the connecting portion is transmitted to almost the entire detection portion of the temperature sensor, and the temperature on the pipe side is detected.

The present invention is also the above-described sensor mounting tool, wherein the temperature sensor is formed in a rod shape, and the sensor holding portion, the connecting portion, and the mounting portion are regions in the longitudinal direction of the temperature sensor. It is preferable that the sensor holding portion, the connecting portion, and the attachment portion are formed to have substantially the same width in this order with a width for holding the same. According to the sensor fitting of the present invention, the heat on the pipe side is linearly transmitted to the detecting portion of the temperature sensor via the mounting portion, the connecting portion, and the sensor holding portion, and the temperature on the pipe side is detected. Become.

Further, the present invention is the above-mentioned sensor mounting tool, wherein the sensor holding portion, the mounting portion, and the connecting portion are formed by bending. According to the sensor fitting of the present invention, the sensor holding portion is formed into a shape in which almost the entire detection portion of the temperature sensor is in contact by bending, and the mounting portion is detachably mounted on the pipe of the heat exchanger. The connecting portion is formed in a shape that integrally connects the sensor holding portion and the mounting portion.

The present invention is also the above-mentioned sensor mounting tool, wherein the sensor holding portion, the mounting portion, and the connecting portion are formed by die casting and extrusion. According to the sensor fitting of the present invention, the sensor holding portion is formed by extrusion into a shape in which almost the entire detection portion of the temperature sensor is in contact, and the mounting portion is detachably mounted on the pipe of the heat exchanger. The connecting portion is formed in a shape that integrally connects the sensor holding portion and the mounting portion.

Further, according to the present invention, in the above-described sensor mounting tool, a rectangular material is bent in approximately half, and the bent portion serves as the sensor holding portion, and a portion continuous with the sensor holding portion is a connecting portion. The connecting portion is a half portion, and a portion continuous with the connecting portion half portion is an attaching portion half portion, and the attaching portion is constituted by these attaching portion half portions, and one connecting portion half portion of the connecting portion half portions is formed. Is provided with a bent portion protruding outward in the width direction, and the bent portion is bent so as to wrap around the other connecting portion half portion, and the connecting portion half portions are fixed to each other to form the connecting portion. It is also possible to adopt the means. According to the sensor mounting tool of the present invention, the connecting part halves can be connected and fixed by simply bending the bent part, and the connecting part is formed as a shape for integrally connecting the sensor holding part and the mounting part. Therefore, their manufacture is simplified. Further, a notch corresponding to the thickness of the bent portion can be provided in the other half of the connecting portion so that the sensor holding portion, the connecting portion, and the attaching portion have substantially the same width dimension.

Further, the sensor of the present invention may include the sensor mounting tool and a temperature sensor mounted on the sensor holding portion of the sensor mounting tool. In this way, by mounting the temperature sensor on the sensor fixture and supplying it in an assembled state, the accuracy of the temperature sensor is higher than that when the sensor fixture and the temperature sensor are supplied in separate states and mounted on the pipe. It becomes possible to improve.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of a sensor mount according to the present invention. The sensor mount 1 shown in this embodiment is a pipe for circulating a heat exchange medium of a heat exchanger such as an air conditioner. 1
The present invention is applied to the case where the temperature sensor 7 is attached to the sensor 5, and the sensor holding portion 2 that holds the temperature sensor 7 and the attachment portion 5 that is detachably attached to the pipe 15 of the heat exchanger,
A connecting portion 3 for integrally connecting the sensor holding portion 2 and the mounting portion 5
It consists of and. The inner surface of the sensor holding portion 2 is a contact portion 2a that comes into contact with almost the entire area of the temperature sensor 7 in the circumferential direction.

The sensor fixture 1 is made of a substantially rectangular thin plate made of a metal such as aluminum, copper, brass, stainless steel, etc. By bending this material, the substantially cylindrical sensor holding portion 2, substantially I. The connecting portion 3 having a shape and the mounting portion 5 having a substantially U shape are integrally formed.

Specifically, a substantially rectangular material is bent in half, and the bent portion is processed into a substantially cylindrical shape to form a sensor holding portion 2, and a portion continuous with the sensor holding portion 2 is further bent to form a substantially I shape. The connecting portion halves 4 and 4 are processed into a shape, and the portions continuous with the connecting portion halves 4 and 4 are further bent and processed into a substantially J shape to form the attaching portion halves 6 and 6.

Then, the opposing connecting half portions 4 and 4 are brought into contact with each other, and they are integrally joined by spot welding, brazing, caulking, doweling or the like, and a substantially cylindrical sensor mounting portion. 2, substantially I-shaped connecting portion 3, and substantially U
The mounting portion 5 having a shape is formed.

A temperature sensor 7 is attached to the inside of the sensor holding portion 2 of the sensor attachment 1 formed as described above, and the operation of the heat exchanger is controlled by a signal from the temperature sensor 7. There is.

The temperature sensor 7 is a protective cap 8 which is fitted in the inside of the sensor holding portion 2 and which is a detection portion which is made of metal such as aluminum, copper, brass or stainless steel and has a substantially cylindrical shape with a closed tip. The sensor body 9 has a round bar-shaped sensor body 9 fitted inside the protective cap 8 and a lead wire 10 connected to the sensor body 9.

The opening of the protective cap 8 is filled with a filler 11 such as a synthetic resin adhesive, and the opening of the protective cap 8 is closed by the filler 11, so that the sensor body 9 and the protective cap 8 are separated from each other. They are joined together to prevent the sensor body 9 from coming off the protective cap 8.

To mount the temperature sensor 7 on the sensor mount 1, the temperature sensor 7 is inserted into the sensor holding part 2 of the sensor mount 1, and the filler is placed between the temperature sensor 7 and the inner surface of the sensor holding part 2. Fill 11 and solidify. Further, this attachment may be performed by joining the connecting portion halves 4 and 4 integrally to form the sensor attachment 1 and then tightly fitting it to the sensor holding portion 2. Alternatively, the connecting part halves 4 and 4 may be positioned in advance inside the sensor holding part 2 before being integrally joined, and then the connecting part halves 4 and 4 may be integrally joined. In this case, as shown in FIG. 2, a concave portion 2b is provided in advance on the inner surface side of the sensor holding portion 2, the temperature sensor 7 is positioned in the concave portion 2b, and then the connecting portion halves 4 and 4 are integrated. You may make it join. Further, as shown in FIGS. 3 and 4, after the temperature sensor 7 is attached to the sensor holding portion 2, the sensor holding portion 2 is caulked from the outside, and the sensor holding portion 2 and the temperature sensor 7 are integrally coupled. Is also good. Furthermore, in order to prevent the temperature sensor 7 from coming out,
As shown in FIG. 1, dowel striking P1 is performed on one end of the sensor holding portion 2 in advance to form a protrusion on the inner surface side, and in this state, the temperature sensor 7 is inserted into the sensor holding portion 2 and The protrusion may regulate the forward movement of the temperature sensor 7, and the other end of the sensor holding portion 2 may be doweled P2 to regulate the backward movement of the temperature sensor 7.

A pipe 15 for circulating the heat exchange medium of the heat exchanger is fitted inside the mounting portion 5. The radius of curvature of the bottom of the mounting portion 5 is the pipe 15 of the heat exchanger.
Is set to be substantially the same as the radius of curvature of, so that the pipe 15 can be tightly fitted inside the mounting portion 5,
The attachment portion 5 can be prevented from coming off the pipe 15. The wall thickness of the mounting portion 5 is set to be thicker than the wall thickness of the pipe 15, whereby the heat transfer coefficient from the pipe 15 to the sensor mounting fixture 1 can be increased.

As shown in FIG. 5, the tip of the opening of the mounting portion 5 is bent outward to form a bent portion 6a, and the inner surface of the bent portion 6a is formed into a tapered surface or a rounded surface. good. With such a shape, it is possible to prevent the tip of the opening of the mounting portion 5 from damaging the pipe 15 side when the pipe 15 is inserted. Furthermore, as shown in FIG. 6, the opening of the mounting portion 5 may be formed slightly narrower than the inside. With such a shape, it is possible to effectively prevent the pipe 15 from coming out of the mounting portion 5. Further, after fitting the pipe 15 to the mounting portion 5, the mounting portion 5 and the pipe 15 may be integrally joined by caulking from the outside of the mounting portion 5. Further, as shown in FIGS. 7 and 8, a semicircular cut or the like is provided in the mounting portion 5, and the cut is raised inside to form a locking portion 6b, and the pipe 15 is fitted inside the mounting portion 5. When this is done, the engaging portion 6b may be engaged with the peripheral surface of the pipe 15. Also, FIG. 13 and FIG.
As shown in FIG. 4, when the mounting portion 5 is provided with one or several dowels and protrudes inward to form the locking portion 6c, and when the pipe 15 is fitted inside the mounting portion 5, this locking is performed. The portion 6c may be locked to the peripheral surface of the pipe 15.

The connecting portion 3 has a function of holding the sensor holding portion 2 in a substantially cylindrical shape, holding the mounting portion 5 in a substantially U shape, and transmitting heat of the mounting portion 5 side to the sensor holding portion 2 side. It is a thing. Therefore, when joining the connecting portion halves 4 and 4 together, it is necessary to join them integrally by spot welding, brazing, caulking, doweling or the like in a state where they are completely adhered.

Since the temperature sensor 7 is formed in a rod shape, the sensor holding portion 2, the connecting portion 3 and the mounting portion 5 are
The temperature sensor 7 is formed sequentially in this order with a width that holds the region in the lengthwise direction, and the sensor holding portion 2, the connecting portion 3, and the mounting portion 5 are formed to have substantially the same width. As a result, the heat on the pipe 15 side can be linearly transferred to the detection part of the temperature sensor 7 via the attachment part 5, the connection part 3 and the sensor holding part 2, and the loss during heat transfer can be made extremely small. Is something that can be done.

Then, the temperature sensor 7 is held in the sensor holding portion 2 of the sensor mounting tool 1 constructed as described above, and in this state, the straight line of the pipe 15 of the heat exchanger is installed inside the mounting section 5 of the sensor mounting tool 1. By fitting the bent portion or the bent portion, the temperature sensor 7 is attached to the straight portion or the bent portion of the pipe 15 of the heat exchanger, whereby the temperature on the pipe 15 side of the heat exchanger can be detected. It is a thing.

In the sensor mount 1 according to this embodiment configured as described above, the heat on the pipe 15 side of the heat exchanger passes through the mounting part 5, the connecting part 3 and the sensor holding part 2. It will be transmitted to the temperature sensor 7. in this case,
The temperature sensor 7 is in a state in which almost the entire protective cap 8 as a detection portion is in contact with the inner surface of the sensor holding portion 2, that is, the contact portion 2a, and there is almost no portion in contact with air. The detection error does not occur, and the temperature on the pipe 15 side can be accurately detected.

Further, the heat on the pipe 15 side is linearly transferred to the detecting portion of the temperature sensor 7 via the mounting portion 5, the connecting portion 3 and the sensor holding portion 2 which are formed to have substantially the same width. Therefore, the heat transfer loss can be made extremely small,
The temperature detection accuracy can be significantly increased.

Further, since the sensor holding portion 2, the mounting portion 5, and the connecting portion 3 are formed into a predetermined shape by bending a single thin metal plate as a material, they can be easily manufactured.

Further, in order to attach the temperature sensor 7 to the pipe 15 of the heat exchanger, the temperature sensor 7 is attached to the sensor holding portion 2.
Since it suffices to hold the above and fit the pipe 15 into the inside of the mounting portion 5, work such as brazing is not required for mounting the temperature sensor 7, and mounting of the temperature sensor 7 becomes very simple.

In the above description, the sensor holding portion 2, the connecting portion 3 and the mounting portion 5 are formed by using a single thin metal plate as a material and bending the material. The sensor holding portion 2, the substantially I-shaped connecting portion 3, and the substantially U-shaped mounting portion 5 may be separately formed, and they may be integrally joined by brazing or the like.

FIG. 9 shows a second embodiment of the sensor mounting member according to the present invention.
The sensor holding part 2, the mounting part 5 and the connecting part 3 are integrally formed by die casting and extrusion, and the other configurations are the same as those shown in the above-mentioned embodiment.

That is, the sensor mount 1 is made of a metal material such as aluminum, copper, brass, stainless steel, etc., and the sensor holding portion 2, the connecting portion 3 and the mounting portion are attached by subjecting this material to die casting and extrusion. The part 5 is formed.

In this case, the sensor holding portion 2 may be provided on the extension line of the mounting portion 5, or the sensor holding portion 2 may be provided at a position deviated from the extension line of the mounting portion 5 (FIG. 1).
0).

Also, in the sensor fixture 1 shown in this embodiment, as in the case of the above-mentioned embodiment,
The heat on the pipe 15 side of the heat exchanger is attached to the mounting portion 5, the connecting portion 3,
And, it is transmitted to the temperature sensor 7 via the sensor holder 2. In this case, the temperature sensor 7 has a state in which almost the entire protective cap 8 serving as the detection unit is in contact with the inside of the sensor holding unit 2, and there is almost no portion in contact with air. Therefore, the temperature on the pipe 15 side can be accurately detected.

Further, the heat on the pipe 15 side is linearly transferred to the detecting portion of the temperature sensor 7 via the mounting portion 5, the connecting portion 3 and the sensor holding portion 2 which are formed to have substantially the same width. Therefore, the heat transfer loss can be made extremely small,
The temperature detection accuracy can be significantly increased.

Further, since the sensor holding portion 2, the mounting portion 5, and the connecting portion 3 are integrally formed by die-casting and extruding using a metal material as a material, they can be easily manufactured.

Further, in order to attach the temperature sensor 7 to the pipe 15 of the heat exchanger, the temperature sensor 7 should be attached to the sensor holder 2.
It suffices that the pipe 15 be held in this state and the pipe 15 be fitted inside the mounting portion 5 in this state, so that work such as brazing is unnecessary for mounting, and mounting is very simple.

In each of the above embodiments, the sensor fitting 1 according to the present invention is applied to mount the temperature sensor 7 on the pipe 15 of a heat exchanger such as an air conditioner. It may be applied when the sensor 7 is attached. Further, the present invention is not limited to mounting the temperature sensor 7, but may be applied to mounting other sensors or measuring equipment.

FIG. 12 shows a third embodiment of the sensor mount according to the present invention. The sensor mount 1A differs from the above-described first embodiment in that
Parts other than the connecting part halves 41 and 42 and the mounting part half 6 are the same as those of the first embodiment.

In this embodiment, at the stage of the rectangular material before bending, bending portions 44, 44 are provided at the positions which become the connecting portion half portions 42 so as to project outward in the width direction thereof, and the connecting portions are connected. Cutouts 43, 43 are provided at positions to be the half portions 41 so that the width dimension thereof becomes smaller corresponding to the thickness dimension of the connecting half portions 42. It is sufficient that the projecting dimensions of the bent portions 44, 44 are such that the bent portions 44 are bent and the connecting portion halves 41, 42 are fixed, as will be described later. Further, the length dimension of the cutouts 43, 43 corresponds to the dimension of the bent portions 44, 44, and is longer than the length dimension of the connecting portion half portions 41, 42 from the sensor holding portion 2 to the mounting portion half portion 6. It is set small.

The radius of curvature of one of the mounting half portions 6 on the side of the connecting portion half portion 41, which is the bottom of the mounting portion 5, is set to be substantially the same as the radius of curvature of the pipe 15 of the heat exchanger, and at the same time, the mounting portion half is mounted. The mounting portion half 6 connecting portion half 41 side which is the bottom of the portion 5 is curved more largely than the substantially J-shape, and its cross section is formed by an arc and a straight line longer than a quadrant, and the opening of the mounting portion 5 is formed. The vicinity of the portion is narrower than the inside, and is longer along the circumferential direction of the pipe 15 than in the above-described embodiment in which the pipe 15 has a substantially half circumference.
A pipe fixing groove 61 is formed to increase the contact area with the above embodiment.

In this sensor attachment 1A, after forming portions corresponding to the sensor holding portion 2, the connecting portion halves 41 and 42, and the attaching portion halves 6 and 6 by bending, the connecting portion half 4 is formed.
In the state in which 1, 42 are in contact with each other, the bent portion 4
4, 44 so as to enclose the connecting portion half 41,
Fold it in the position corresponding to 43 and crimp it, and the connecting part half 4
1, 42 are fixed and joined together to form a substantially cylindrical sensor mounting portion 2, a coupling portion 3, and a mounting portion 5.

According to the sensor mounting tool 1A of the present embodiment, the connecting portion half portion 4 can be formed simply by bending the bending portion 44.
1, 42 can be connected and fixed to each other, and the connecting portion 3 has a shape for integrally connecting the sensor holding portion 2 and the mounting portion 5.
Can be formed, which simplifies their manufacture. Further, by providing the notch 43 corresponding to the thickness of the bent portion 44 in the connecting portion half portion 41, the sensor holding portion 2, the connecting portion 3, and the mounting portion 5 can have substantially the same width dimension.

Further, the fixing groove 61 is used for the linear pipe 15 to attach the sensor mounting tool 1A, so that the contact area with the linear pipe 15 is the above-mentioned first area.
It is possible to make the size larger than that of the embodiment. Therefore, the sensor fitting 1A can further improve the temperature detection accuracy of the temperature sensor 7.

[0049]

As described above, according to the present invention, the temperature sensor is held in the sensor holding portion, and in this state, the attachment portion is attached to the bent portion or the straight portion of the pipe such as the heat exchanger, The temperature sensor will be attached to the pipe of the heat exchanger. Therefore, the work of brazing or the like is not required for mounting the temperature sensor, so that the mounting of the temperature sensor becomes very easy. Also, the heat on the pipe side of the heat exchanger is
The temperature on the pipe side is detected by the temperature sensor, which is transmitted to the temperature sensor via the mounting portion, the coupling portion, and the sensor holding portion. In this case, almost all of the detection portion of the temperature sensor contacts the sensor holding portion, and there is almost no portion in contact with air, so that the detection error due to the temperature sensor does not occur under the influence of air. Therefore, the temperature detection accuracy of the temperature sensor can be significantly increased. Further, the sensor holding portion, the connecting portion, and the mounting portion are sequentially formed in this order with a width that holds the region in the longitudinal direction of the temperature sensor, and the widths of the sensor holding portion, the connecting portion, and the mounting portion are substantially the same. As a result, the heat on the pipe side of the heat exchanger can be linearly transferred to the detection portion of the temperature sensor via the attachment portion, the connection portion, and the sensor holding portion. Therefore, the loss at the time of heat transfer becomes extremely small, so that the temperature on the pipe side can be detected with high accuracy. Furthermore, the sensor holding part, the mounting part,
And since the connecting part can be formed by bending, pressing or die casting and extruding, their manufacture is simplified. Further, the accuracy of the temperature sensor can be improved by supplying the sensor mounting tool with the temperature sensor mounted thereon.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a sensor fixture according to the present invention.

FIG. 2 is a partial cross-sectional view showing a modified example of the first embodiment.

FIG. 3 is a plan view showing a modified example of the first embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a cross-sectional view showing a modified example of the first embodiment.

FIG. 6 is a cross-sectional view showing a modified example of the first embodiment.

FIG. 7 is a perspective view showing a modified example of the first embodiment.

8 is a sectional view taken along line BB of FIG.

FIG. 9 is a perspective view showing a second embodiment of the sensor mount according to the present invention.

FIG. 10 is a perspective view showing a modified example of the second embodiment.

FIG. 11 is a schematic view showing an example of a conventional sensor attachment.

FIG. 12 is a perspective view showing a third embodiment of the sensor mount according to the present invention.

FIG. 13 is a perspective view showing another embodiment of the sensor fixture according to the present invention, which corresponds to FIG. 7.

FIG. 14 is a sectional view showing another embodiment of the sensor fixture according to the present invention, which corresponds to FIG. 8.

[Explanation of symbols]

1 ... Sensor attachment 2 ... Sensor holder 2a ... contact part 3 ... Connection part 5 ... Mounting part 7 ... Temperature sensor 8 ... Protective cap (detector) 15 ... pipe

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Sakae Mori             Saitama Prefecture Chichibu-gun Yokose-cho 2270 Yokoze             Ryo Materials Co., Ltd. Ceramics Factory Den             Child Device Development Center

Claims (6)

[Claims] 1. A sensor mounting tool for mounting a temperature sensor on a pipe for circulating a heat exchange medium of a heat exchanger, wherein the sensor mounting part holds the temperature sensor, a mounting part mounted on the pipe, A sensor comprising a sensor holding part and a connecting part integrally connecting the mounting part, wherein the sensor holding part has a contact part that comes into contact with substantially the entire area of the temperature sensor in the circumferential direction. Fixture. 2. The sensor mount according to claim 1, wherein the temperature sensor is formed in a rod shape,
The connecting portion and the mounting portion are sequentially formed in this order with a width for holding a region in the lengthwise direction of the temperature sensor,
A sensor mounting tool, wherein the widths of the sensor holding portion, the connecting portion, and the mounting portion are substantially the same. 3. The sensor mounting tool according to claim 1, wherein the sensor holding portion, the mounting portion, and the connecting portion are formed by bending. 4. The sensor attachment according to claim 1, wherein the sensor holding portion, the attachment portion, and the connecting portion are formed by die casting and extrusion. Fixture. 5. The sensor attachment according to claim 1, wherein a rectangular material is bent in approximately half, and the bent portion serves as the sensor holding portion and is continuous with the sensor holding portion. A part is a connecting part half, and a part continuous to the connecting part half is an attaching part half, and the attaching part is constituted by these attaching part halves, and one of the connecting part halves is Is provided with a bent portion projecting outward in the width direction, and the bent portion is bent so as to wrap the other connecting portion half, and the connecting portion half portions are fixed to each other to form the connection. A sensor attachment characterized by being formed as a part. 6. A sensor, comprising: the sensor attachment according to claim 1; and a temperature sensor mounted on the sensor holding portion of the sensor attachment.