JP2005315591A - Contact type temperature sensor and contact type temperature sensor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thinly-formable contact type temperature sensor capable of measuring the temperature accurately in surface contact with the temperature measuring object surface of a body to be measured with a prescribed pressing force, and having a simple structure and the small number of components. <P>SOLUTION: This contact type temperature sensor 1 is constituted as follows: a contact surface part 12a in contact with the body 30 to be measured of a contact plate 12 is formed flatly; temperature sensing parts 13, 13 are disposed on the back of the contact surface part 12a; the contact plate 12 is supported on both end parts by a case body 10 movably in the direction vertical to the contact surface part 12a; and a contact surface part 15a is pressed at three or more spots enclosing the temperature sensing parts 13, 13 or at least both sides of the temperature sensing parts 13, 13 of the contact surface part 12a are pressed in a linear, belt-like or spot-line shape by pressing means 14, 15, to thereby bring into contact with the body 30 to be measured. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a contact-type temperature sensor that measures temperature by directly contacting a stationary or moving material or product in a manufacturing process or the like of various products. More specifically, the present invention relates to a structure for pressing a contact plate of a contact-type temperature sensor against a surface to be measured.

  As a thermometer that measures the surface temperature of the object to be measured, there is a contact type temperature sensor that measures the temperature by directly contacting the surface. In these contact type temperature sensors, the temperature sensing part of the thermoelectric element is connected via a contact plate. The contact plate is in contact with the object to be measured, but using the elastic deformation force of the contact plate itself, an elastic contact plate type that presses the contact plate against the object to be measured, and a pressing force with the contact plate are generated. There is an elastic body pressing type that combines an elastic body and presses the back of the contact plate with the elastic body.

  In this elastic contact plate type, the contact plate is formed of a U-shaped elastic frame, and the central portion of the contact plate is brought into contact with the temperature-measured body, and the dish-shaped contact plate is attached to the tip of the hollow cylinder. The center part of this dish is brought into contact with the temperature measuring body (see, for example, Patent Document 1 and Patent Document 2).

  Further, in a contact-type temperature sensor that also covers a moving surface, a contact plate is provided with a contact portion in the center and provided with a deformed portion that is less elastic than the contact portion on both sides of the contact plate. The pressing force is adjusted by attaching to the casing and adjusting the elastic force of the deformed portion (see, for example, Patent Document 3).

  And in the elastic body pressing type, both ends of the contact plate are held by leaf springs, the center is pressed by a push pin urged by a coil spring, or both legs are attached so that they can move up and down. A thermocouple fixing portion is provided at the center of the ring, and symmetrical positions on both sides thereof are pressed by an elastic support such as a coil spring or rubber (for example, see Patent Document 4).

  Also, in the elastic body pressing type, the auxiliary plate with the lever is fixed near both ends of the contact plate, and the bending force is generated at both ends of the contact plate by the elastic force of the auxiliary plate, and the sensor body is fixed to the back surface. The center part of the contact plate bulges in a convex shape, or both ends of the contact plate are movably held by loosely supporting the support bars in the long guide holes, and the center part of the contact plate is annular elastic body (See, for example, Patent Document 5 and Patent Document 6).

  And in these contact-type temperature sensors, even if the contact plate has a curved surface shape or a flat contact plate shape so as to cope with the case where the temperature measurement object is a curved surface, It has a structure in which it is pressed by a straight line including two points on both sides in the longitudinal direction and a temperature sensitive part.

  However, depending on the purpose of use, there may be cases where only a stationary plane is targeted and the temperature change is not abrupt.

  In a contact-type temperature sensor for such an application, the wider the contact surface, the more easily the temperature of the contact plate and the temperature of the temperature sensing part becomes the same as the temperature of the measurement surface. Contact is more preferred.

  In addition, it is necessary to set so that the contact plate can be brought into contact with the measured temperature object with a predetermined pressing force according to each measured temperature object. In some cases, readjustment during measurement is unnecessary. In this case, it is preferable to finely adjust the pressing force by providing a complicated pressing force adjusting mechanism because the mechanism of the contact temperature sensor becomes complicated and easily breaks down, and the man-hour and the manufacturing cost increase. There is no problem.

Also, from the standpoint of manufacturing and countermeasures against failure, the number of parts of the contact thermometer is small, the structure is simple, high work accuracy and mounting accuracy are not required, and it is easy to set the pressing force at the time of shipment. desirable.
Japanese Utility Model Publication No. 57-201940 Japanese Utility Model Publication No. 58-28195 Japanese Patent Laid-Open No. 7-198504 Japanese Patent Publication No.54-18580 Japanese Patent No. 2979264 Japanese Patent Laid-Open No. 10-318864

  The present invention has been made in order to solve the above-mentioned problem, and the purpose thereof is to make an accurate temperature measurement by making surface contact with a temperature measurement target surface of a temperature-measured body with a predetermined pressing force, An object of the present invention is to provide a contact-type temperature sensor that has a simple structure, has a small number of parts, and can be formed thin.

  In order to achieve the above object, a contact-type temperature sensor according to the present invention comprises a contact plate that contacts a temperature-measured body, a temperature sensing portion, a pressing means that presses the contact plate against the temperature-measured body, and a case body. In the contact temperature sensor, the contact surface portion of the contact plate that contacts the temperature-measured body is formed as a flat surface, the temperature sensing portion is disposed on the back surface of the contact surface portion, and the contact plate is pressed at both end portions. The case main body is supported so as to be movable in the direction, and is configured to press the contact surface portion at three or more points surrounding the temperature sensing portion by the pressing means to contact the temperature-measured body.

  According to this configuration, the contact surface portion of the contact plate is formed into a flat surface, and the contact surface portion is pressed by three or more points surrounding the temperature sensing portion with the pressing means. The surface of the object to be measured is closer to the surface. Therefore, heat conduction between the temperature measurement target surface of the temperature measurement object and the contact plate is efficiently performed, and accuracy of temperature measurement is improved.

  And since it is a surface contact, compared with the temperature sensor of a point contact or a line contact, since a contact surface with a to-be-measured body is wide and contact pressure becomes low, durability of a contact plate improves.

  In the contact-type temperature sensor having a contact plate that contacts the temperature-measured body, a temperature sensing unit, a pressing unit that presses the contact plate against the temperature-measured body, and a case body, the temperature-measured body of the contact plate The contact surface portion that abuts is formed as a flat surface, the temperature sensing portion is disposed on the back surface of the contact surface portion, and the contact plate is supported on the case body so as to be movable in the pressing direction at both end portions, and the pressing means Then, at least both sides of the temperature sensing portion of the contact surface portion are pressed in a line shape, a belt shape, or a dot line shape so that the contact surface portion is brought into contact with the temperature measurement object.

  This point sequence includes a state in which the planar pressing portions are discontinuously connected, and the line shape and the belt shape include not only a straight line but also a curved line. Moreover, although it is preferable that both sides of a temperature sensing part are pressed in the same linear shape, a strip | belt shape, or a dotted line shape, you may differ in both sides, such as one side is linear and one side is strip | belt shape.

  According to this configuration, the contact surface portion of the contact plate is formed as a flat surface, and at least both sides of the temperature sensing portion of the contact surface portion are pressed in a linear shape, a belt shape, or a point array shape by the pressing means. The contact surface portion formed in the same surface shape can be pressed face-to-face, and the contact surface portion of the contact plate more closely contacts the surface to be measured. Therefore, heat conduction between the surface to be measured and the contact plate is efficiently performed, and the accuracy of temperature measurement is improved.

  Further, since the contact plate is pressed by the pressing means, the shape and material of the contact plate can be selected more freely than the elastic contact plate type in which the contact plate itself also serves as the pressing means, and the design becomes easy.

  In the contact temperature sensor, the pressing means includes an elastic member and a pressing member, and the pressing member is pressed by the elastic force of the elastic member, and the flat portion is pressed by the pressing member. The flat portion is configured to come into contact with the temperature object.

  According to this configuration, since the pressing means includes the elastic member and the pressing member, it is not necessary to make the elastic member a shape suitable for pressing the contact plate, and a simple shape can be obtained. It becomes easy to generate a pressing force. In addition, since the pressing member can be made into a shape suitable for pressing the contact plate regardless of the magnitude of the pressing force, the design and manufacture are facilitated.

  In the contact temperature sensor, the pressing member is formed in a bifurcated shape having a concave portion on the contact plate side, and a convex portion is formed on the elastic member side, and the convex portion is formed by the elastic member. By pressing, both end portions in the width direction of the contact surface portion are pressed in a linear shape, a strip shape, or a point sequence through the pressing member.

  And in said contact-type temperature sensor, by forming the said elastic member with a leaf | plate spring, a press means can be comprised with a very simple structure, and also it can be made thin. According to this configuration, not only the shape of the elastic member is simplified, but the both ends need only be supported, and the pressing force becomes the spring force of the leaf spring, so that the leaf spring material, plate thickness, shape, length Since the spring force can be changed by changing the width, etc., a predetermined pressing force can be easily obtained, and the contact temperature sensor can be made thin.

  In addition, as the elastic member, a coiled spring, a rubber material, or the like can be used. Further, when the magnitude of the pressing force is not particularly problematic, the pressing means is an elastic pressing member, that is, the elastic member and the pressing member. It can also be configured by a member that also serves as the above.

  Furthermore, the contact-type temperature sensor unit is formed with a contact-type temperature sensor and a magnet for fixing the contact-type temperature sensor to the temperature-measuring body. The sensor part and the fixing part having the magnet and the recessed part, and by engaging the concave part of the sensor part and the recessed part of the fixing part, the sensor part and the fixing part are It is integrally formed.

  With this configuration, the contact-type temperature sensor unit that can easily fix the contact-type temperature sensor to the temperature object to be attracted by the magnet has a small number of parts and the parts have a relatively simple shape and structure. In addition, since it is easy to assemble, it does not take time to manufacture and can be commercialized at a low cost.

  More specifically, the contact-type temperature sensor unit is composed of the above-described contact-type temperature sensor and a sensor unit including a fixed support unit that accommodates the contact-type temperature sensor in a lower part, and a U-shape or U-shape. The fixed support portion is composed of a magnet and a magnet support portion that stores the magnet, and the fixed support portion is formed of a storage portion and a lid portion that are divided in the left-right direction, and the contact temperature sensor The upper part of the part to be accommodated is formed with a recess having an opening on the front side, and the magnet support part accommodates the magnet so that the attracting surface by the magnetic force is on the lower side, and above the magnet support part. The engaging plate is formed by planting and arranged, the upper center of the fixing portion is inserted into the concave portion of the fixing support portion from the front, and the engaging plate is arranged in contact with the side surface of the fixing support portion. And the engaging portion of the engaging plate and the housing By engaging the engaging portion of configured to secure said engaging plate and said housing portion and said lid portion.

  Alternatively, in the contact-type temperature sensor unit, instead of dividing the fixed support portion in the left-right direction, the housing portion and the lid portion are formed by dividing the fixed support portion in the front-rear direction, and the magnet support portion is attached to the fixed support portion. The engagement plate is arranged in contact with the front surface of the fixed support portion when inserted into the recess from the front.

  In addition, the top and bottom, right and left, and front and back which show a direction here are expressions for showing the mutual relationship of each direction, and are relative. Therefore, in actual use, the contact-type temperature sensor unit is not necessarily limited to this direction.

  According to the contact-type thermometer sensor of the present invention, the contact surface portion of the contact plate that comes into contact with the temperature-measured body is formed as a flat surface. Press the contact surface part at three or more points surrounding the temperature part, or press at least both sides of the temperature-sensitive part of the contact surface part in a line shape, a belt shape, or a dot line shape, and make the contact plate to be measured Since contact is made, the contact surface portion can be in close surface contact with the surface to be measured. Therefore, heat conduction between the surface of the temperature-measuring object and the contact plate is efficiently performed, and the accuracy of temperature measurement is improved. Furthermore, since it is surface contact, compared with the temperature sensor of point contact or line contact, since the contact surface with a to-be-measured body is wide and contact pressure becomes low, durability of a contact plate improves.

  Further, since the contact plate is pressed by the pressing means, the shape and material of the contact plate can be selected more freely than the elastic contact plate type in which the contact plate itself also serves as the pressing means, and the design becomes easy.

  And, since the pressing means is composed of an elastic member and a pressing member, each member can be designed and manufactured by functionally separating the generation of the elastic force and the pressing at an appropriate location, so that the optimum design becomes possible. .

  Furthermore, if the elastic member is formed of a leaf spring, the pressing means can be configured with a very simple structure, and a predetermined pressing force can be easily applied by changing the material, leaf pressure, shape, length, width, etc. of the leaf spring. In addition, the contact temperature sensor can be made thin.

  And according to the contact-type temperature sensor unit of the present invention, since it is formed to have a magnet for fixing to the temperature-measuring body, the contact-type temperature sensor can be easily attached to the temperature-measuring body that is attracted by magnetic force. Can be fixed.

  Further, according to the contact-type temperature sensor and contact-type temperature sensor unit of the present invention, the number of parts is small, the parts have a relatively simple shape and structure, and are easy to assemble. Therefore, it can be commercialized at a low cost.

  Next, a contact temperature sensor and a contact temperature sensor unit according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 6, the contact-type temperature sensor unit U according to the embodiment of the present invention includes a sensor unit 10 having a contact thermometer sensor 1 and a fixing unit 20, and the sensor unit 10 includes a case. The fixed support portion 11 constituting the main body, the contact plate 12, the thermosensitive elements 13 and 13 disposed behind the center of the contact plate 12, and the contact plate 12 are pressed against the temperature object 30. The fixing portion 20 includes a magnet 21 and a magnet support portion 22. The pressing portion includes a pressing member 15 and a leaf spring (elastic member) 14.

  The fixed support portion 11 includes a housing portion 11 </ b> A and a lid portion 11 </ b> B that are divided in the left-right direction, and is a case body that constitutes the contact-type temperature sensor 1. In this example, it comprises a lower part 11a, a gripping part 11b, and a passage part 11c so that the contact plate 12 is exposed at the lower part. The material of the fixed support portion 11 is selected in consideration of the measurement temperature range and the like. For example, a ceramic molded product is used for high temperature, and a synthetic resin molded product is used for 200 ° C. or lower.

  The contact plate 12 is made of a metal material such as a stainless plate having a high thermal conductivity so that heat transfer from the temperature measurement object 30 and heat transfer to the temperature sensing unit 13 disposed behind the center are performed smoothly. It is formed in a strip shape. Further, the contact plate 12 is a pressing means composed of a plate spring 14 and a pressing member 15, and is pressed against the surface 30f of the temperature-measured body 30 by the plate spring 14 via the pressing member 15, so that a frictional force is applied from the surface 30f. It is formed so as to have elasticity and strength that do not buckle and deform even when subjected to bending.

  The contact plate 12 is formed in an L shape at both ends in the longitudinal direction, and is formed in a U shape as a whole, and includes a contact surface portion 12a and support portions 12b at both ends. The contact surface portion 12a is formed as a flat surface. Further, the support portion 12b is provided with a support projection portion 12c. The support projection portion 12c is loosely fitted into the support hole 11h provided in the lower portion 11a of the fixed support portion 11, and has a predetermined range with respect to the pressing direction. It is movably supported within. In addition, since the contact surface part 12a should just be movable to the extent which can transmit pressing force to a press direction, the structure of spring-supporting the both ends of the contact plate 12 may be sufficient.

  The support protrusion 12c loosely fitted in the support hole 11h is formed by punching by press working, direct spot welding of the support bar, or by sandwiching the support portion 12b of the contact plate 12 from both sides with a plate having a support bar. It can also be provided by welding.

  The temperature sensing parts 13 and 13 are thermoelectric elements disposed behind the central part of the contact surface part 12a of the contact plate 12, and here, a pair of thermocouples are provided, but one thermocouple may be provided. . The temperature sensing unit 13 is composed of a thermocouple thermal contact, a thermistor, and the like, and is fixed to the contact plate 12 by welding, adhesion, or the like so as to receive heat transfer efficiently. The lead wires 13a from the temperature sensing parts 13, 13 pass through the end part of the holding member 15 and the end part of the leaf spring 14, and pass through the passage 11d provided in the passage part 11c of the fixed support part 11 of the main body. Not led to the temperature measurement unit. In this temperature measurement unit, the output from the temperature sensing units 13 and 13 is converted into a temperature for temperature display or output to a data processing device.

  When the temperature sensing unit 13 cannot be directly joined to the contact plate 12, a contact plate is prepared, the temperature sensing unit 13 is sandwiched between the contact plate and the contact plate 12, and both sides of the temperature sensing unit 13 are arranged. The portion of the contact plate may be joined to the contact plate 12 by welding, adhesion, or the like, and the temperature sensitive portion 13 may be fixed to the contact plate 12.

  Moreover, the leaf | plate spring 14 which is an elastic member is formed with a thin metal plate with elasticity, such as a stainless plate and a spring steel plate, as shown in FIGS. The shape of the leaf spring 14 may be formed in a flat plate or any other shape as long as the end portion is supported and the pressing portion 15a of the pressing member 15 can be pressed at the center portion. The leaf spring 14 is supported by the support shelf 11 s of the lower portion 11 a of the fixed support portion 11.

  The pressing member 15 is formed of a material such as synthetic resin. The pressing member 15 need not be formed of an elastic body, but may be formed of an elastic body such as hard rubber. As shown in FIGS. 2, 3, 7, and 8, the shape of the pressing member 15 is formed such that the contact plate 12 side presses two stripes at both ends in the width direction of the contact plate 12 in a band shape. The

  The contact plate 12 side having the pressing surface 15f is formed in a bifurcated shape having a concave portion 15b in the center, that is, in a U-shaped cross section. Further, the leaf spring 14 side is formed with a convex portion 15a that receives the pressing force at the center so that the pressing force by the leaf spring 14 can be efficiently distributed to the pressing surface 15f. By pressing this convex portion 15a with the leaf spring 14, even if the mounting posture of the leaf spring 14 is slightly changed, the position to receive the pressing force on the holding member 15 side is substantially fixed. A stable pressing force can be generated.

  The contact plate 12 is pressed in parallel by the pressing surface 15f of the pressing member 15 at both ends in the width direction of the contact surface portion 12a. If the pressing surface 15f is formed in a linear shape, both end portions in the width direction of the contact plate 12 can be pressed in a linear shape, and the pressing surface 15f is formed in a dot sequence in which the pressing portions are scattered in a row. If it does so, the both ends of the width direction of the contact plate 12 can be pressed in the shape of a point sequence.

Next, the assembly of the contact-type temperature sensor 1 and the contact-type temperature sensor unit U will be described. The assembly of the sensor unit 10 of the contact-type temperature sensor 1 includes a contact plate 12 as shown in FIGS. The temperature sensing unit 13, the leaf spring 14, and the pressing member 15 are incorporated in the housing portion 11 </ b> A of the fixed support portion 11 and covered with the lid portion 11 </ b> B.

  11 A of this accommodating part is turned upside down, ie, the contact surface side is turned up, the leaf | plate spring 12 is inserted in the support shelf part 11s of the cover part 11c, and the convex part 15a has the pressing member 15 on this leaf | plate spring 12. The contact plate 12 having the temperature sensing portion 13 disposed on the back surface is placed so that the temperature sensing portion 13 is on the pressing member 15 side.

  Then, the support protrusion 12c of the contact plate 12 is loosely fitted in the support hole 11h provided in the lower part 11a of the fixed support part 11, and the support protrusion 12c on the opposite side is provided on the cover part 11c. The lid portion 11B is attached to the accommodating portion 11A while loosely fitting into the hole 11h and simultaneously passing the lead wire 13a of the temperature sensing portion 13 through the passage 11d of the passage portion 11c.

  Further, as shown in FIG. 5, the fixing portion 20 includes a U-shaped or U-shaped magnet 21, and a magnet support portion 22 that stores the magnet 21 so that a magnetic adsorption surface 21 f is on the lower side. Formed with. In addition, an engaging plate 24 having a fixing screw hole 23 is arranged on the upper side of the magnet support portion 22. Regarding the storage of the magnet 21, the magnet support portion 22 may be divided so as to be sandwiched between the magnets 21, or the entire magnet 21 may be molded with a synthetic resin.

  As shown in FIG. 6, the upper center 20a of the fixing portion 20 is inserted from the front into a recess 16 having an opening on the front side formed between the lower portion 11a of the sensor portion 10 and the grip portion 11b. The engaging plate 24 is placed in contact with the side surface of the fixing support portion 11, the fixing screw hole 23 is overlaid on the fixing screw hole 19 of the sensor portion 10, and the screw 40 is accommodated in the housing portion. It is screwed and fixed to the engaging part of 11A. Accordingly, the housing portion 11A, the lid portion 11B, and the engagement plate 24 can be simultaneously fixed with one screw 40, and the sensor portion 10 and the fixing portion 20 can be integrated. The fixing screw hole 23 becomes an engaging portion of the engaging plate 24, and a portion into which the screw 40 of the accommodating portion 11A is screwed becomes an engaging portion of the accommodating portion 11A.

  The engagement between the engaging plate 24 and the engaging portion of the accommodating portion 11A may be other than a screw. For example, the engaging plate 24 is sandwiched by a bifurcated clip that simultaneously holds the accommodating portion 11A, the lid portion 11B, and the engaging plate 24. It may be fixed with. Moreover, you may integrate by providing an engagement male part and an engagement female part in the engagement plate 24 and the accommodating part 11A, and making these engage. Further, if it is not necessary to disassemble, it may be joined by an adhesive, welding, or the like, and in this case, the engagement plate 24 is not particularly required.

  That is, the contact-type temperature sensor unit U is formed by the sensor unit 10 having the contact-type temperature sensor 1 and the recess 16, and the fixing unit 20 having the magnet 21 and the recess 25. And the recessed portion 25 of the fixing portion 20 are engaged to form the sensor portion 10 and the fixing portion 20 in an integrated manner. This integrated contact-type temperature sensor unit U is shown in FIGS.

  According to the contact-type temperature sensor 1 having this configuration, both end portions in the width direction of the contact plate 12 can be pressed in a strip shape extending in the longitudinal direction by the leaf spring 14 via the pressing member 15. By this pressing, both side portions of the temperature sensing unit 13 can be pressed against the temperature measuring body 30. Therefore, the contact plate 12 can be brought into close contact with the surface 30f of the temperature-measured body 30 over the entire surface. At this time, the contact plate 12 is held by the fixed support portion 11 at a position balanced with the pressing force of the plate spring 12 because the support protrusions 12c are loosely fitted in the support holes 11h at both ends.

  Further, according to the contact-type temperature sensor 1 of this configuration, the contact plate 12 can be brought into close contact with the temperature-measured body 30, so that the heat of the temperature-measurement body 30 contacts the contact plate 12 from the surface 30f. The temperature is transmitted smoothly and quickly to the temperature sensing part 13 via the surface part 12a, and the contact plate 12 and the temperature sensing part 13 become the same temperature as the temperature of the surface 30f. Therefore, accurate temperature measurement can be performed.

  In addition, since it is only pressed by the leaf spring 14, a predetermined pressing force can be easily set. The adjustment for setting is performed by changing the elastic force of the leaf spring 14 by cutting the leaf spring 14 in the width direction, by changing the support distance of the leaf spring 14 by cutting the support shelf 11s, or by the pressing surface of the pressing member 15. This can be done very easily by changing the height of the pressing member 15 by cutting 15f.

  And according to the contact-type temperature sensor unit U of this structure, when the to-be-measured body 30 has the part adsorb | sucked to a magnet, by making the to-be-measured body 30 adsorb | suck with the magnetic force of the magnet 21, The sensor unit 10 of the contact-type temperature sensor 1 can be easily fixed to the temperature measurement object 30.

  Furthermore, this contact-type temperature sensor 1 has a small number of parts, and the parts have a relatively simple shape and structure and can be easily assembled. Can do.

  In addition, regarding the part 15p which presses the contact surface part 15a, in addition to FIGS. 1-4, three-point press (all these three points are not on the same straight line) surrounding the temperature sensing part 13 as illustrated in FIG. ), Four-point press surrounding the temperature sensing portion 13 (all four points are not on the same straight line), linear pressure on both side surfaces of the temperature sensing portion 13, belt-like pressure on both side surfaces of the temperature sensing portion 13, and temperature sensing portion It is also possible to use a point-sequence-like press on both side surfaces of 13, a point-sequence-like press by the dotted surface on both side surfaces of the temperature sensing unit 13, or the like.

  In the contact-type temperature sensor unit U, the fixed support portion 11 is divided in the front-rear direction instead of being divided in the left-right direction to form the accommodating portion 11A and the lid portion 11B, and the magnet support portion 22 is fixed to the fixed support portion 11. The engaging plate 24 may be disposed in contact with the front surface of the fixed support portion 11 when inserted into the concave portion 16 from the front.

It is a perspective view which shows the structure of the contact-type temperature sensor of embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the internal component of the contact-type temperature sensor of FIG. It is a perspective view which shows the internal component and accommodating part of the contact-type thermometer sensor of FIG. In the contact-type thermometer sensor of FIG. 1, it is a perspective view which shows the state which accommodated the internal component in the accommodating part. In the contact-type thermometer sensor of FIG. 1, it is a perspective view which shows the sensor part which attached the cover part to the accommodating part, and a fixing | fixed part. It is a perspective view which shows the state which assembled the sensor part and the fixing | fixed part. It is a sectional side view of the lower part of the contact-type temperature sensor of FIG. It is a cross-sectional view of the lower part of the contact-type temperature sensor of FIG. It is a figure which illustrates a press part, (a) is three-point press surrounding a temperature-sensitive part, (b) is four-point press surrounding a temperature-sensitive part, (c) is a linear form of both sides of a temperature-sensitive part. (D) is a belt-like press on both sides of the temperature sensing part, (e) is a dot-like press on both sides of the temperature sensing part, and (f) is a dotted surface on both sides of the temperature sensing part. Each of the point-string-like presses by is shown. It is a front view of a contact-type temperature sensor unit. It is a left view of a contact-type temperature sensor unit. It is a right view of a contact-type temperature sensor unit. It is a rear view of a contact-type temperature sensor unit. It is a top view of a contact-type temperature sensor unit. It is a bottom view of a contact-type temperature sensor unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Contact-type temperature sensor 10 Sensor part 11 Fixed support part (case main body)
11A Housing part 11B Lid part 11a Lower part 11b Grasping part 11c Passage part 12 Contact plate 12a Contact surface part 12c Supporting protrusion part 13 Temperature sensing part 14 Leaf spring (pressing member)
15 pressing member 15a convex portion 15b concave portion 16 concave portion (having an opening on the front side)
20 fixing part 20a upper center of fixing part 21 magnet 21f attracting surface 22 magnet support part 23 fixing screw hole 24 engaging plate 30 to-be-measured body 40 screw

Claims (6)

In the contact-type temperature sensor having a contact plate that contacts the temperature-measured body, a temperature sensing unit, a pressing unit that presses the contact plate against the temperature-measured body, and a case body.
The case has a flat contact surface portion that contacts the temperature measuring body of the contact plate, the temperature sensing portion is disposed on the back surface of the contact surface portion, and the contact plate can be moved in the pressing direction at both end portions. Support the body,
A contact-type temperature sensor that presses the contact surface portion at three or more points surrounding the temperature-sensing portion by the pressing means to contact the temperature-measured body. In the contact-type temperature sensor having a contact plate that contacts the temperature-measured body, a temperature sensing unit, a pressing unit that presses the contact plate against the temperature-measured body, and a case body.
The case has a flat contact surface portion that contacts the temperature measuring body of the contact plate, the temperature sensing portion is disposed on the back surface of the contact surface portion, and the contact plate can be moved in the pressing direction at both end portions. Support the body,
A contact-type temperature characterized in that the pressing means presses at least both sides of the temperature sensing part of the contact surface part into a linear shape, a belt shape, or a dot line shape, thereby bringing the contact surface part into contact with the temperature-measured body. Sensor.   The pressing means includes an elastic member and a pressing member. The pressing member is pressed by the elastic force of the elastic member, and the contact surface portion is pressed by the pressing member to the temperature-measured body. The contact-type temperature sensor according to claim 2, wherein the contact-type temperature sensor is contacted.   The pressing member is formed in a bifurcated shape having a concave portion on the contact plate side, and the elastic member side is formed by providing a convex portion, and the convex portion is pressed by the elastic member, thereby interposing the pressing member. The contact-type temperature sensor according to claim 3, wherein both end portions of the contact surface portion in the width direction are pressed in a line shape, a strip shape, or a point sequence.   The contact-type temperature sensor according to claim 4, wherein the elastic member is formed of a leaf spring. A contact-type temperature sensor unit formed by including the contact-type temperature sensor according to claim 1 and a magnet for fixing the contact-type temperature sensor to a temperature-measured body, wherein the contact-type temperature sensor unit The sensor unit is formed by a sensor unit having a sensor and a recess, and a fixing unit having the magnet and a recess, and by engaging the recess of the sensor unit and the recess of the fixing unit. And a contact-type temperature sensor unit in which the fixed portion is integrally formed.

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