JP2583743Y2 - Temperature detector support device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature detector supporting device for supporting a temperature detector for detecting the temperature of a refrigerant in a refrigerant pipe.

[0002]

2. Description of the Related Art Conventionally, this type of temperature detector supporting device is disclosed in Japanese Utility Model Laid-Open Publication No. 2-69733.

[0003] The above-mentioned conventional temperature detector support device will be described below with reference to the drawings. FIG. 9 is an exploded perspective view showing a conventional temperature detector supporting device, and FIG. 10 is a perspective view of FIG.

In FIG. 1, reference numeral 1 denotes a refrigerant pipe, 2 denotes a semi-cylindrical holder mounted on a side portion 3 of the refrigerant pipe 1, and 4 denotes a semi-cylindrical holder 2 for detecting the temperature of the refrigerant in the refrigerant pipe 1. The temperature detector 5 inserted into the space between the inner wall surface 6 of the semi-cylindrical holder 2 and the temperature detector 4 is a leaf spring-shaped support plate which is pressed against the temperature detector 4.

The support plate 5 is formed by bending the main body 7 into a corrugated shape.
A bent piece 8 having one end bent in an inverted U-shape;
Wire holding portion 10 having the flat portion 9 formed in a U-shape and the other end 1
1 A slit 12 is formed in the center, and a pair of tips 13, 1
4 and claw portions 15 and 16 formed by bending the tip portions 13 and 14 outward from each other.

The semi-cylindrical holder 2 comprises a cylindrical portion 17 and a flat portion 18. The support structure of the temperature detector supporting device configured as described above will be described below.

The support plate 5 is pressed and inserted between the bent piece 8 and the main body 7 so that the flat portion 18 of the semi-cylindrical holder 2 is inserted, and is fixed by the claw portion 15 without coming off. The temperature detector 4 is press-fitted between the inner wall surface 6 of the semi-cylindrical holder 2 and the main body 7 of the support plate 5 so as to contact the claw portion 16.

[0008]

However, in the configuration of the above-mentioned conventional temperature detector supporting device, the temperature detector 4 needs to be fixed in consideration of workability and serviceability, so that it is press-fitted and firmly fixed. It is difficult to perform the operation, and the displacement of the temperature detector 4 occurs, and the contact area between the temperature detector 4 and the refrigerant pipe 1 fluctuates, so that the accurate refrigerant temperature cannot be detected. Had the disadvantage of doing so.

The present invention solves the above-mentioned conventional problems, and can be easily and firmly fixed, prevents the contact area between the temperature detector and the refrigerant pipe from changing, and detects the temperature of the refrigerant accurately. It is an object to provide a vessel support device.

[0010]

In order to achieve this object, a temperature detector supporting device according to the present invention has a temperature sensor at one end,
A cylindrical temperature detector having a wiring connection portion at the other end, a support plate extending in a radial direction of the temperature detector from a substantially central portion in a central axis direction of the temperature detector, and holding the temperature detector. The holder comprises a holder mounted and welded to the refrigerant pipe, and a screw for fixing the support plate to the holder, wherein the holder has an inner wall surface at the bottom which is in close contact with the temperature sensing portion and an outer wall surface at the bottom of the refrigerant pipe. have a recess of the bottomed cylindrical shape in close contact with the outer wall surface, the temperature detector, said temperature sensing
The part senses the temperature of the outer wall surface of the refrigerant pipe through the recess.
It is held in the holder so as to know, and the refrigerant pipe
The outer wall surface of the bottom portion of the concave portion on the outer wall surface closely adheres
To increase the heat transfer area to the temperature sensing part
Is formed .

In another aspect of the present invention, a temperature sensor is provided at one end,
A cylindrical temperature detector having a wiring connection portion at the other end, a support plate extending in a radial direction of the temperature detector from a substantially central portion in a central axis direction of the temperature detector, and holding the temperature detector. The holder comprises a holder attached to and welded to the refrigerant pipe, and a screw for fixing the support plate to the holder. The holder holds the temperature detector so that the temperature sensor is in close contact with the outer wall surface of the refrigerant pipe. And the refrigerant pipe
At the part of the outer wall of the
The flat part to increase the heat transfer area to the temperature sensor
It was formed .

[0012]

According to the temperature sensor supporting device of the present invention, the temperature sensing portion of the temperature sensor is fixed in close contact with the inner wall surface of the bottom of the concave portion of the holder and the outer wall surface of the bottom of the concave portion. Is directly in close contact with the outer wall surface of the refrigerant pipe, so that accurate refrigerant temperature can be detected and easily and firmly fixed, so that the contact area between the temperature detector and the refrigerant pipe can be prevented from fluctuating. .

Further, the bottom of the recess on the outer wall surface of the refrigerant pipe
Heat transfer area to the temperature sensor at the part where the outer wall of the
Is formed , the refrigerant temperature can be detected more accurately.

In another aspect of the present invention, a temperature sensor is provided.
The sensing part is in direct contact with the refrigerant pipe and is placed on the outer wall of the refrigerant pipe.
The heat transfer surface to the temperature sensing part
Since the flat part for increasing the product is formed , the refrigerant temperature can be detected more accurately.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the temperature sensor supporting device according to the present invention will be described below with reference to the drawings.

1 and 2, reference numeral 19 denotes a refrigerant pipe, reference numeral 20 denotes a temperature detector, and reference numeral 21 denotes a holder.

The temperature detectors 20 are provided on both sides of a support plate 23 forming an opening hole 22, respectively, in the form of a cylindrical temperature sensor 2.
4. Wiring connection part 26 forming wiring connection terminal 25
have. The holder 21 holds the temperature detector 20 and is attached and welded to the refrigerant pipe 19. The bottom inner wall surface 27 is in close contact with the temperature sensing unit 24 and the bottom concave outer wall surface 33 is the outer wall surface of the refrigerant pipe 19. The main body 29 has a bottomed cylindrical concave portion 28 that is in close contact with the main body 34. The main body 29 is formed by bending both ends of the flat plate toward the bottom of the concave portion 28 so as to have a U-shape. It has a cut-out opening recess 32.

The main body 29 has an opening 35 formed by screwing. Reference numeral 36 denotes a screw that passes through the opening 22 of the support plate 23 and is fixed to the screwed opening 35.

Hereinafter, the support structure of the temperature detector will be described. In the holder 21, the refrigerant pipe 19 is inserted into the opening concave part 32 formed on the two sides 30 and 31, the concave part outer wall surface 33 and the refrigerant pipe outer wall surface 34 are in close contact, and are mounted by welding. The temperature detector 20 is provided in the concave portion 28 formed in the holder 21 with the temperature detecting portion 2.
4 is inserted, the inner wall surface 27 and the temperature sensing unit 24 are in close contact with each other, penetrate through the opening 22 formed in the support plate 23, and are fixed to the opening 35 with screws 36.

In this embodiment, a cylindrical temperature detector 20 having a temperature sensor 24 at one end and a wiring connection 26 at the other end.
A support plate 23 extending from a substantially central portion of the temperature detector 20 in the central axis direction in a radial direction of the temperature detector 20, a holder 21 holding the temperature detector 20 and being attached to and welded to the refrigerant pipe 19; And a screw 36 for fixing the plate 23 to the holder 21.
7 is in contact with the temperature sensing portion 24 and the bottom concave outer wall surface 33 is in close contact with the outer wall surface 34 of the refrigerant pipe 19.
8, it is possible to accurately detect the refrigerant temperature and easily and firmly fix the refrigerant.
9 can be prevented from changing. In the present embodiment, the holder 21 is provided on both sides in the direction in which the refrigerant pipe 19 extends with the temperature sensing portion 24 interposed therebetween.
Of the holder 21 and the outer wall surface 34 of the refrigerant pipe 19.
And the contact state is stabilized.

A second embodiment will be described with reference to FIGS. The second embodiment is different from the first embodiment in that a flat portion 37 having a predetermined width is formed on a refrigerant pipe outer wall surface 34 that is in close contact with a concave outer wall surface 33 formed in the holder 21.

Hereinafter, the support structure of the temperature detector will be described. Recessed outer wall surface 33 of holter 21 and refrigerant pipe outer wall surface 3
The four flat portions 37 are attached to each other by welding.

With the above configuration, the outer wall surface 33 of the concave portion and the flat portion 37 of the refrigerant pipe 19 are in close contact with each other, the heat transfer area is increased, and the refrigerant temperature can be detected more accurately.

A third embodiment will be described with reference to FIGS. The third embodiment is different from the first embodiment in that, when the temperature sensing portion 24 is housed in the recess 28 formed in the holder 21, the temperature sensing portion 24 is formed to be shallow so as to protrude, and the recess is opposed to the refrigerant pipe 19. 38, an opening 39 through which the temperature sensing portion 24 of the temperature detector 20 passes is formed.

Hereinafter, the support structure of the temperature detector will be described. The temperature sensing unit 24 is housed in the recess 28 of the holder 21, and the temperature sensing unit 24 and the refrigerant pipe outer wall surface 34 are in close contact with each other.

With the above configuration, the temperature sensor 24 of the temperature detector 20 is in direct contact with the refrigerant pipe 19, so that the refrigerant temperature can be detected more accurately.

A fourth embodiment will be described with reference to FIGS. The fourth embodiment is different from the first embodiment in that a pair of flat portions 40 and 41 facing the refrigerant pipe 19 are formed by bending outwardly in the opening recesses 32 of the holder 21, respectively. Also, flat portions 42 and 43 having the same dimensions as the flat portions 40 and 41 are formed. Hereinafter, the support structure of the temperature detector will be described. The holder 21 has the flat portions 40 and 41 and the flat portions 42 and 43 in close contact with each other, and
It is fixed to.

According to the above configuration, the flat portions 40 and 41 formed on the holder 21 and the refrigerant pipe 19 are in close contact with each other.
The contact area increases, and the holder 21 can be fixed more firmly.

[0029]

As described above, the temperature detector supporting device of the present invention has a cylindrical temperature detector having a temperature sensor at one end and a wiring connection at the other end, and a central axis of the temperature detector. A support plate extending in a radial direction of the temperature detector from a substantially central portion in a direction, a holder holding the temperature detector and being welded to a refrigerant pipe, and a screw fixing the support plate to the holder. The holder has a bottomed cylindrical concave portion in which the inner wall surface of the bottom is in close contact with the temperature sensing unit and the outer wall surface of the bottom is in close contact with the outer wall surface of the refrigerant pipe . Also easily and firmly
It can be fixed, and the contact area between the temperature detector and the refrigerant pipe changes.
Movement can be prevented.

Further, the temperature detector further comprises a temperature sensor.
Senses the temperature of the outer wall of the refrigerant pipe through the recess
At the outer wall surface of the refrigerant pipe.
At the portion where the outer wall surface of the bottom of the recess is in close contact, the temperature
Form a flat part to increase the heat transfer area to the temperature sensor
Therefore, the refrigerant temperature can be detected more accurately.

In another embodiment of the present invention, a temperature sensor is provided at one end,
A cylindrical temperature detector having a wiring connection portion at the other end, a support plate extending in a radial direction of the temperature detector from a substantially central portion in a central axis direction of the temperature detector, and holding the temperature detector. The holder comprises a holder attached to and welded to the refrigerant pipe, and a screw for fixing the support plate to the holder. The holder holds the temperature detector so that the temperature sensor is in close contact with the outer wall surface of the refrigerant pipe. And the refrigerant pipe
At the part of the outer wall of the
The flat part to increase the heat transfer area to the temperature sensor
Since the formed, further, capable of detecting the refrigerant temperature more accurately.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a temperature detector supporting device according to a first embodiment of the present invention;

FIG. 2 is a perspective view of a temperature detector supporting device in the embodiment.

FIG. 3 is an exploded perspective view showing a temperature sensor supporting device according to a second embodiment of the present invention;

FIG. 4 is a perspective view of a temperature detector supporting device in the embodiment.

FIG. 5 is an exploded perspective view showing a temperature detector supporting device according to a third embodiment of the present invention;

FIG. 6 is a perspective view of a temperature detector supporting device in the embodiment.

FIG. 7 is an exploded perspective view showing a temperature sensor supporting device according to a fourth embodiment of the present invention;

FIG. 8 is a perspective view of a temperature detector supporting device in the embodiment.

FIG. 9 is an exploded perspective view showing a conventional temperature detector supporting device.

FIG. 10 is a perspective view of a conventional temperature detector supporting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 19 Refrigerant piping 20 Temperature detector 21 Holder 24 Temperature sensing part 27 Inner wall surface 28 Concave 30 2 side 31 2 side 32 Open concave 33 Outer concave wall 34 Coolant pipe outer wall 36 Screw 37 Flat surface 38 Recess 39 Open hole 40 Flat surface 41 Flat part 42 Flat part 43 Flat part

Claims (2)

(57) [Scope of request for utility model registration] 1. A cylindrical temperature detector having a temperature sensor at one end and a wiring connection at the other end, and a support extending in a radial direction of the temperature detector from a substantially central portion of the temperature detector in a central axis direction. A plate, a holder for holding the temperature detector and being attached to and welded to the refrigerant pipe, and a screw for fixing the support plate to the holder. to have a recess with a bottom cylindrical outer wall surface of the bottom portion are in close contact with the outer wall surface of the refrigerant pipe, the temperature detector, the temperature sensing portion via the recess
The holder is configured to sense the temperature of the outer wall surface of the refrigerant pipe.
It is held loaders, out of the bottom of the recess in the outer wall surface of the refrigerant pipe
The area where the wall is in close contact with the heat transfer area to the temperature sensor
A temperature detector supporting device, wherein a flat portion for increasing the size is formed . 2. A cylindrical temperature detector having a temperature sensor at one end and a wiring connection at the other end, and a support extending in a radial direction of the temperature detector from a substantially central portion of the temperature detector in a central axis direction. Plate, a holder that holds the temperature detector and is attached and welded to the refrigerant pipe, and a screw that fixes the support plate to the holder. holding the temperature detector so as to be in intimate contact with, the temperature sensing portion at the outer wall surface of the refrigerant pipe to contact
To increase the heat transfer area to the temperature sensing part
A temperature detector supporting device, wherein a flat portion is formed for the temperature detector.