WO2015162641A1 - シース型測温センサのターミナルヘッド - Google Patents
シース型測温センサのターミナルヘッド Download PDFInfo
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- WO2015162641A1 WO2015162641A1 PCT/JP2014/002270 JP2014002270W WO2015162641A1 WO 2015162641 A1 WO2015162641 A1 WO 2015162641A1 JP 2014002270 W JP2014002270 W JP 2014002270W WO 2015162641 A1 WO2015162641 A1 WO 2015162641A1
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- connector
- sheath
- type temperature
- temperature sensor
- terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/023—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples provided with specially adapted connectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K2007/163—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements provided with specially adapted connectors
Definitions
- the present invention relates to a terminal head of a sheath type temperature measuring sensor for connecting a thermocouple element of a sheathed thermocouple and a compensating conductor cable, or a conductor of a sheath resistance thermometer and an extension cable.
- a sheathed thermocouple or sheathed resistance thermometer which is a sheathed temperature sensor, is connected to a cable that guides the measurement signal to the receiver.
- the sheathed thermocouple has a compensating lead cable, and the sheathed thermometer has an extension cable. Connected.
- a terminal head also called a terminal box targeted by the present invention.
- Figure 4 shows the connection between the sheathed temperature sensor and the cable.
- 4A shows the connection relationship between the sheath thermocouple 301 and the compensation lead cable 701
- FIG. 4B shows the connection relationship between the sheath resistance thermometer 302 and the extension cable 702.
- the part surrounded by the chain line is the connection part in the terminal head. 4 is a cross-sectional view, but the covering 71 of the compensating lead cable 701 and the extension cable 702, the compensating lead 731 of the compensation lead cable 701, the insulation covering 72 of the lead 732 of the extension cable 702, and the resistance temperature detector element 35. Is shown in outline. Further, in FIG. 4A and FIG. 4B, parts having the same function are denoted by the same reference numerals.
- the sheath thermocouple 301 accommodates a pair of thermocouple wires 31a in a metal sheath 32 with an inorganic insulating material powder 33 such as magnesia or alumina interposed therebetween.
- the compensation conductor 731 exposed from the coating 71 of the compensation conductor cable 701 and each insulation coating 72 is connected to the thermocouple element 31a.
- the sheath resistance temperature detector 302 is a member in which the resistance temperature detector element 35 and its conductor 31b are accommodated in a metal sheath 32 with an inorganic insulating material powder 33 such as magnesia or alumina interposed therebetween.
- the lead wire 732 exposed from the coating 71 of the extension cable 702 and each insulation coating 72 is connected to the lead wire 31b of the resistance temperature detector element 35 in the terminal head.
- FIG. b) shows the case of a three-wire system.
- a resin seal 34 is applied to the end of the sheath 32, and the temperature measurement is caused by the entry of moisture causes a decrease in the insulation resistance of the inorganic insulating powder 33. The generation of errors is prevented.
- FIG. 5 is a sheath thermocouple terminal head.
- 5A is a cross-sectional view of the terminal head 10
- FIG. 5B is a cross-sectional view taken along the line CC in FIG. 5A
- FIG. 5C is a cross-sectional view taken along the line DD in FIG. .
- the outer frame 101 has an upper opening, a side opening 104 and a bottom opening 105 into which the lid 102 is screwed.
- the lid 102 is connected to the outer frame 101 and a chain 103 to prevent loss.
- a terminal plate 20 made of an electrically insulating material is fixed to the outer frame body 101 by a plurality of terminal plate fixing screws 201.
- Two terminal fittings 202 are fixed to the terminal plate 20 with terminal fitting fixing screws 207, and a sensor wiring terminal 206 and a cable wiring terminal 203 are attached to each terminal fitting 202.
- Each pair of these two types of terminals is electrically connected by the terminal fitting 202.
- a sheath mounting bracket 208 is also attached to the terminal plate 20 with a sheath mounting bracket fixing screw 205, and the sheath 32 of the sheath thermocouple 301 inserted into the sheath mounting bracket 208 from the bottom opening 105 of the outer frame body 101. Are welded, and the position of the sheath thermocouple 301 is fixed by the sheath mounting bracket 208.
- thermocouple 301 A resin seal 34 is applied to the end of the sheath thermocouple 301, and the pair of thermocouple wires 31a that have come out of the sheath 32 are covered with an insulating tube 312 to prevent contact with each other.
- the tip of the thermocouple element 31 a is connected to the sensor wiring terminal 206.
- a protective tube 106 for preventing deformation and damage of the sheath thermocouple 301 is fixed to the bottom opening 105 of the outer frame body 101 by screwing the outer frame body 101 and the lock nut 107.
- a compensation conductor cable from a receiver (not shown in FIG. 5) is inserted into the side opening 104 of the outer frame 101, and the compensation conductor is connected to the cable wiring terminal 203.
- the sheath thermocouple 301 and the compensating lead wire cable are connected.
- the number of sets of the sensor wiring terminal 206, the cable wiring terminal 203, and the terminal fitting 202 requires the number of conductors of the sheath type temperature measuring sensor.
- a sheathed thermocouple 301 containing a pair of thermocouple wires 31a there are two sets as shown in FIG. 5, but in the case of a double element type sheathed thermocouple containing two pairs of thermocouple wires.
- the number of sets is 2, 3, and 4, respectively.
- thermocouple element 31a is the conductor 31b
- the compensation conductor cable 701 is the extension cable 702
- the compensation conductor 731 is the extension cable conductor 732.
- the sheath thermocouple 301 and the sheath resistance thermometer 302 are collectively extended with the sheath type temperature sensor, and the thermocouple element 31a and the conductor 31b are collectively extended with the sheath type resistance thermometer conductor and the compensation conductor cable 701.
- the cable 702 is collectively referred to as a cable, and the compensation conductor 731 of the compensation conductor cable 701 and the conductor 732 of the extension cable 702 are collectively referred to as a cable conductor.
- the shape of the terminal head is as shown in FIG. 1 of Patent Document 1, FIG. 2 of Patent Document 2, FIGS. 1 and 4 of Patent Document 3, and FIG. There is something.
- the terminal plate is placed in an outer frame with a lid (called a main body in Patent Document 1, a terminal box in Patent Document 2, an outer frame in Patent Document 3, and a terminal housing in Patent Document 4).
- a terminal block (referred to as a terminal block in Patent Document 1, a terminal board in Patent Documents 2 and 3 and a terminal board in Patent Document 4) is fixed to an outer frame body, and a wiring terminal (patented)
- the basic structure provided with terminal fittings in Patent Document 1, terminal blocks in Patent Document 2, wiring screws in Patent Document 3, and connection terminals and terminals in Patent Document 4 is the same as that shown in FIG. Is the same as the connection between the sheath type temperature measuring sensor inserted from the bottom opening of the outer frame body and the cable inserted from the side opening.
- the terminal head 10 having the conventional structure shown in FIG. 5 is replaced as follows.
- the sensor wiring terminal 206, the terminal fitting 202, the terminal fitting fixing screw 207, the sheath attachment fitting 208, the sheath attachment fitting fixation screw 205, and the sheath type temperature sensor 301 fixed to the sheath attachment fitting 208 are integrated into a cover 102. Pull out from the upper opening of the removed outer frame body 101.
- the sheath mounting bracket 208 and the terminal plate of the sheath type temperature measuring sensor 301 fixed to the sheath mounting bracket 208 by detaching the lead wire 31a of the sheath type temperature measuring sensor 301 from the sensor wiring terminal 206 and the sheath mounting bracket fixing screw 205 are removed. Remove from 20.
- a new sheath-type temperature measuring sensor 301 to which a new sheath-mounting metal fitting 208 that has been prepared is welded is attached to the terminal plate 20 with a sheath-attaching metal fitting fixing screw 205, and insulated from the lead wire 31a extending from the sheath-type temperature sensor 301. After covering the tube 312, the tip is connected to the sensor wiring terminal 206.
- the sensor wiring terminal 206, the terminal fitting 202, the terminal fitting fixing screw 207, the sheath attachment fitting 208 and the sheath attachment fitting fixing screw 205 is inserted as a unit.
- the terminal plate 20 is fixed to the outer frame body 101 by the terminal plate fixing screws 201, and the cable conductor is connected to the cable wiring terminal 203, and then the lid 102 is screwed to the outer frame body 101.
- the procedure for replacing the sheath-type temperature sensor in this way is similar to the terminal head having the structure shown in FIGS. 1 to 3 described above, although there are some differences in the number of fixing screws to be removed and attached, etc. The same.
- the lead wire 31a is difficult to see and easily disconnected. Performing splicing in a state where the tool is limited at the site where the terminal head 10 is installed has a problem that it is a difficult task requiring experience and working time of workers.
- the sheath outer diameter is large and the lead wire 31a accommodated in the sheath is thick, the lead wire 31a cannot be bent easily, so that the lead wire 31a is removed from the sensor wiring terminal 206 and the sensor wiring terminal 206 is removed.
- the terminal head of Patent Document 4 shows a terminal board that is divided into two upper and lower layers and integrated by inserting a split pin. Since the sheath type temperature sensor is fixed to the upper layer terminal board, the sheath type temperature sensor can be replaced by taking out the sheath type temperature sensor while fixing the sheath type temperature sensor to the upper layer terminal board and preparing a new upper layer terminal board. This is possible by attaching a new sheath-type temperature sensor fixed to the frame.
- the operation of removing the lead wire of the sheath-type temperature sensor from the wiring terminal provided on the upper terminal board and the connecting operation to the wiring terminal can be performed in a factory equipped with equipment.
- the problem of field work like this does not occur.
- the upper terminal board having a complicated structure must be replaced, which causes another problem that the cost of replacement parts increases.
- the terminal head shown in FIG. 5 and the above-mentioned Patent Documents 1 to 3 can be used for the conductor of the sheath type temperature sensor. Since the work to remove from the wiring terminal provided on the terminal board is not necessary, and the work to be connected to the wiring terminal can be performed at the factory, there is no problem that the field work becomes difficult depending on the diameter of the conducting wire.
- the lead wire of the sheath type temperature sensor is removed from the wiring terminal and connected to the same wiring terminal.
- the field work to be connected has a difficult problem depending on the diameter of the conductive wire, and there is a problem that the cost increases if the terminal board is also replaced in order to avoid this.
- the present invention has been made in view of the above-mentioned problems.
- An object of the present invention is to provide a terminal head of a sheath type temperature sensor that suppresses an increase in cost to a limited extent.
- a cable for transmitting a temperature sensor signal to a sheath-type temperature sensor that houses a temperature sensor with an inorganic insulating material powder interposed in a cylindrical metal sheath.
- a terminal head of a sheath-type temperature sensor provided for connection An outer frame body having an upper opening formed at the top, a side opening into which a cable formed at the side is inserted, and a bottom opening into which a sheath-type temperature sensor formed at the bottom is inserted substantially vertically , A lid attached to the upper opening of the outer frame by screwing; Made of electrical insulating material, fixed inside the outer frame by a plurality of terminal board fixing screws, the horizontal dimension is smaller than the horizontal dimension of the upper opening of the outer frame body, and the terminal board fixing screws are removed to make it vertical A terminal board provided at a position where it can be taken out of the outer frame body from the upper opening of the outer frame body with the lid removed, A terminal fitting attached to the upper surface of the terminal plate in the same number as the conductor of the sheath type temperature sensor; A cable wiring terminal for connecting each conductor of the cable to the terminal fitting by screwing with the terminal fitting; A male connector in which a male electrode pin of the same number as the conductor of the sheath type
- Either the male connector or the female connector is attached to the terminal plate, and the other connector is attached to the upper end of the sheath of the sheath type temperature sensor.
- a pair of plug-in connectors In the state where the connector attached to the terminal plate side and the connector attached to the sheath type temperature sensor side are coupled, there is a coupling nut that is in a position straddling both connectors and holds the coupled state by screw tightening.
- the connector attached to the terminal plate side is fixed to the terminal plate so that the connector attached to the sheath type temperature sensor side is coupled from below, and the electrode pins and cable wiring terminals of the connector attached to the terminal plate side are , Electrically connected by the connecting conductor connecting the upper end of the electrode pin and the terminal fitting, and the terminal fitting,
- the connector attached to the sheath type temperature sensor side is the sheath type so that the connector attached to the terminal board side is coupled in the upward direction and the sheath type temperature sensor is substantially vertical in the coupled state.
- the sheath-type temperature sensor is fixed to the sheath-type temperature sensor with the upper end of the sheath-type temperature sensor being inserted into the bottom of the cylindrical body of the connector attached to the temperature sensor side.
- each electrode pin of the connector attached to the sensor side is connected to the lead wire of the sheath-type temperature sensor that goes out of the sheath, With the terminal plate, terminal fitting, cable wiring terminal, a pair of plug-in connectors, a coupling nut, and a sheathed temperature sensor assembled, the assembled horizontal dimension is the same as the horizontal dimension of the terminal plate. It does not exceed.
- the terminal metal fitting when replacing the sheath-type temperature measuring sensor, the terminal metal fitting, the cable wiring terminal, the cable terminal connected to the cable wiring terminal, and the terminal metal fitting, the cable wiring terminal, A terminal plate to which one of a connecting conductor and a pair of plug-in connectors is attached, a connector on the sheath type temperature sensor side in which the connection state with the connector is held by a coupling nut, and the sheath type temperature sensor
- the unit integrated with the sheath type temperature sensor to which the connector on the side is fixed the unit can be taken out of the outer frame body through the upper opening of the outer frame body.
- the present invention there is no need to remove the conductor of the sheath-type temperature sensor at the replacement site of the sheath-type temperature sensor and to connect the conductor to the same wiring terminal. Since the parts other than the temperature sensor that need to be replaced are limited to the connector on the sheath type temperature measuring sensor side, the number of parts to be replaced can be minimized to suppress an increase in cost. In addition, since the coupling of the connector is held by tightening the coupling nut straddling one connector and the other connector, and the coupling is released by loosening the coupling nut, the coupling of the pair of plug-in connectors and the cancellation of the coupling are performed. Even when the sheath type temperature sensor is replaced, it can be easily performed.
- the coupling nut holds the coupling of the pair of plug-in connectors.
- a plurality of recesses are provided on the side of one connector of a pair of plug-in connectors, and the other connector is provided with a plurality of arms with a key-shaped tip made of the same electrically insulating resin as the body of the other connector
- the connection of the pair of plug-in connectors is held by hooking the key-shaped portion of the arm of the other connector to the concave portion of one connector.
- the operation of removing the conductor of the sheath type temperature measurement sensor at the replacement site of the sheath type temperature measurement sensor from the wiring terminal and the operation of connecting to the wiring terminal are unnecessary, and
- the parts that need to be replaced other than the sheath type temperature measuring sensor are limited to the connector on the sheath type temperature measuring sensor side, so that the cost can be suppressed by minimizing the parts to be replaced.
- the holding of the coupling in this aspect utilizes the elasticity of the electrically insulating resin that is the material of the connector body.
- the arm Since the arm is pulled out and then coupled, the arm is returned to its original position and the key-like portion is hung on the recess, the coupling is maintained, and the coupling can be released with the arm pulled outward.
- the one connector of the pair of plug-in connectors and the other connector can be easily coupled and released at the site of replacement of the sheath type temperature measuring sensor. .
- a cylindrical portion is provided on the side where the male connector and the female connector of the pair of plug-in connectors are joined, and the cylindrical portion of at least one connector is at the end on the side in contact with the other connector,
- the other connector and the other connector are coupled by inserting the cylindrical portion of the other connector into the cylindrical portion provided at the end of the one connector,
- the outer surface of the cylindrical portion of the other connector is formed with a plurality of protrusions whose surface in the insertion direction is inclined in the direction opposite to the insertion direction and whose surface opposite to the insertion direction is inclined in the insertion direction.
- the present invention there is no need to remove the conductor of the sheath-type temperature measuring sensor from the wiring terminal and connect it to the wiring terminal at the replacement site of the sheath-type temperature measuring sensor.
- the parts that need to be replaced other than the sheath type temperature measuring sensor are limited to the connector on the sheath type temperature measuring sensor side, it is possible to minimize the number of parts to be replaced and suppress an increase in cost.
- the holding of the connection in this aspect also utilizes the elasticity of the electrically insulating resin that is the material of the connector body.
- the protrusion of the inner cylindrical portion can move greatly in the radial direction due to the presence of the slit.
- the inner cylindrical portion when the inner cylindrical portion is inserted into the outer cylindrical portion, if the protrusion reaches the end of the outer cylindrical portion, the surface in the insertion direction of the protrusion is inclined opposite to the insertion direction.
- the projection is pushed inward by the end of the cylindrical portion, and the insertion can be continued.
- the projection pushed by the outer cylindrical portion When each projection reaches the position of the corresponding through hole or recess, the projection pushed by the outer cylindrical portion is inserted into the through hole or recess and returns to the original position. Retains connector connection.
- the first and second aspects are such that the connection and release of one connector of the pair of plug-in connectors and the other connector can be easily performed at the replacement site of the sheath type temperature measuring sensor. It is the same.
- a cylindrical portion is provided on the side where the male connector and the female connector of the pair of plug-in connectors are joined, and the cylindrical portion of at least one connector is at the end on the side in contact with the other connector,
- the other connector and the other connector are coupled by inserting the cylindrical portion of the other connector into the cylindrical portion provided at the end of the one connector,
- On the inner surface of the cylindrical portion of one connector there are formed a plurality of protrusions whose surface in the insertion direction is inclined in the direction opposite to the insertion direction, and whose surface opposite to the insertion direction is inclined in the insertion direction.
- the present invention as in the first to third aspects, there is no need to remove the conductor of the sheath type temperature measuring sensor from the wiring terminal and connect it to the wiring terminal at the replacement site of the sheath type temperature measuring sensor.
- the parts that need to be replaced other than the sheath type temperature measuring sensor are limited to the connector on the sheath type temperature measuring sensor side, it is possible to minimize the number of parts to be replaced and suppress an increase in cost.
- the connection and pulling of one connector and the other connector are the same except that the protrusion is pushed and moves outward.
- the principle of detachment is the same as in the third aspect, and as in the third aspect, the connection and release of one connector of the pair of plug-in connectors and the other connector are performed by the sheath-type temperature sensor. Can be easily implemented at the replacement site.
- a cylindrical portion is provided at an end of one of the male connector and the female connector of the pair of plug-in connectors that are in contact with the other connector, and the cylindrical portion or A cylindrical part is provided, and one connector and the other connector are joined by inserting the cylindrical part or the cylindrical part of the other connector into the cylindrical part provided at the end of the one connector, A female screw is cut on the inner surface of the cylindrical portion of one connector, and a male screw is cut on the outer surface of the cylindrical portion or the column portion of the other connector.
- the connection between one connector and the other connector is held by screwing a male screw and a female screw.
- the present invention there is no need to remove the conductor of the sheath type temperature measuring sensor from the wiring terminal and to connect it to the wiring terminal at the site of replacement of the sheath type temperature measuring sensor.
- the parts that need to be replaced other than the sheath type temperature measuring sensor are limited to the connector on the sheath type temperature measuring sensor side, it is possible to minimize the number of parts to be replaced and suppress an increase in cost.
- the coupling is maintained by screwing the female screw of one connector and the male screw of the other connector, and further, the coupling is released by unscrewing the female screw of one connector and the male screw of the other connector.
- one connector of the pair of plug-in connectors and the other connector can be easily coupled and released at the site of replacement of the sheath type temperature measuring sensor. is there.
- the sheath type temperature sensor when the sheath type temperature sensor is replaced, it is not necessary to perform on-site work for removing the sheath type temperature sensor from the wiring terminal and connecting it to the wiring terminal. Since the only part to be replaced with the temperature sensor is the connector attached to the sheath type temperature sensor, the sheath type temperature sensor can be replaced without a large increase in cost.
- FIG. 1 It is a longitudinal cross-sectional view which shows the terminal head of the sheath type temperature measuring sensor in one Embodiment of this invention.
- B (b) AA arrow plan view of Fig. 1 (a).
- C (c) is a BB cross-sectional view of FIG. (A) It is sectional drawing which shows fixation to the sheath type temperature measuring sensor of a connector with a connector mounting screw. It is a cross-sectional view showing the fixing of the connector to the sheath-type temperature measuring sensor with a clamping cylinder.
- Fig. 2C is a side view of the lower cylindrical portion of the connector on the sheath-type temperature sensor side of Fig. 2B.
- FIG. 5 (A) It is sectional drawing which shows the coupling
- C is a side view of the inner cylindrical portion of FIG. 3 (b).
- FIG. 1A is a longitudinal sectional view showing a terminal head 1 of a sheath type temperature measuring sensor 3 according to an embodiment of the present invention
- FIG. 1B is a plan view taken along the line AA in FIG.
- FIG. 1C is a cross-sectional view taken along the line BB in FIG.
- FIG. 1A illustrates a case where the sheath type temperature measuring sensor 3 has two conducting wires 31.
- an inorganic insulating material powder 33 such as alumina or magnesia is interposed in a cylindrical metal sheath 32, and a thermocouple element or a resistance temperature sensor element is provided.
- the sheath-type temperature sensor 3 is provided at the head of the sheath-type temperature sensor 3.
- the terminal head 1 includes at least an outer frame body 11, a lid 12 of the outer frame body 11, a terminal plate 2, a terminal plate fixing screw 21, a cable wiring terminal 23, a terminal fitting 22, a pair of plug-in connectors 4, 5, It consists of a nut 6 and a connecting conductor 24.
- the outer frame 11 has an upper opening to which a lid 12 is screwed, a side opening 14 into which the above-mentioned cable is inserted, and a bottom opening in which the sheath type temperature sensor 3 is inserted substantially vertically. 15 is provided.
- the lid 12 is connected to the outer frame 11 by a chain 13 to prevent loss.
- the terminal board 2 is made of an electrically insulating material and is fixed to the outer frame body 11 with terminal board fixing screws 21.
- the terminal plate 2 has a horizontal dimension smaller than the upper opening of the outer frame body 11, and the upper opening of the outer frame body 11 with the lid 12 removed by removing the terminal plate fixing screw 21 and moving vertically upward. It installs in the position which can be taken out of the outer frame 11 from the outside. Further, the same number of terminal fittings 22 as the conductors 31 of the sheath type temperature measuring sensor 3 are attached to the upper surface of the terminal plate 2, and each terminal fitting 22 has a cable wiring terminal 23 to which each conductor of the cable is connected. It is screwed.
- the horizontal dimension of the terminal plate 2 is 42 mm
- the horizontal dimension of the upper opening of the outer frame body 11 is 60 mm at the minimum
- the outer frame body 11 and the lid 12 screwed to the outer frame body 11 are combined.
- the size is 95 mm in both the vertical and horizontal directions, but is not limited thereto.
- the pair of plug-in connectors 4 and 5 is a connector 4 (female connector) in which a body 41 made of an electrically insulating resin is provided with the same number of female electrode pins 42 as the conductor 31 of the sheath type temperature measuring sensor 3. ) And a connector 5 (male connector) in which a male electrode pin 52 having the same number as the female electrode pin 42 is provided in a body 51 made of an electrically insulating resin.
- a female connector 4 is attached to the terminal plate 2
- a male connector 5 is attached to the upper end portion of the sheath 32 of the sheath type temperature measuring sensor 3.
- the connector 4 is fixed to the terminal board 2 with an adhesive in the direction in which the connector 5 is coupled from below.
- the upper end portions of the electrode pins 42 of the connector 4 and the cable wiring terminals 23 are electrically connected to the terminal fittings 22 and connecting conductors 24.
- the connector 5 is a lower portion of the cylindrical body 51 of the connector 5 so that the sheath-type temperature sensor 3 is substantially vertical when the connector 4 is inserted from above and the connector 5 and the connector 4 are coupled.
- the upper end of the sheath 32 of the sheath-type temperature sensor 3 is inserted into the sheath-type temperature sensor 3 and is fixed to the sheath 32 of the sheath-type temperature sensor 3 with an adhesive.
- each electrode pin 52 of the connector 5 is connected to a conducting wire 31 that goes out of the sheath 32 of the sheath type temperature sensor 3.
- the connection between the electrode pin 42 of the connector 4 and the connecting conductor 24, the connection conductor 24 and the terminal fitting 22, and the connection between the electrode pin 52 of the connector 5 and the conductor 32 of the sheath type temperature measuring sensor 3 is performed by soldering. It has been broken.
- the outer diameter of the sheath 32 of the sheath type temperature measuring sensor 3 of the present embodiment is 3.2 mm.
- the paired connectors 4 and 5 are in a coupled state, and the coupled state is maintained by tightening the coupling nut 6 across both connectors.
- the sheath type temperature sensor 3 and the cable are connected.
- the upper end surface of the sheath 32 of the sheath-type temperature sensor 3 is provided with a resin seal 34 penetrating through the lead wire 31 of the sheath-type temperature sensor 3, and the entry of moisture reduces the insulation resistance of the inorganic insulating material powder 33. This prevents the occurrence of temperature measurement errors.
- a protective tube 16 for preventing deformation and damage of the sheath type temperature measuring sensor 3 is fixed to the bottom opening 15 of the outer frame body 11 by screwing the outer frame body 11 and the lock nut 17.
- the protrusion 53 of the body 51 of the connector 5 is for preventing the connector 5 from rotating in the circumferential direction and damaging the electrode pins 42 and 52, and is not necessary when the electrode pins 42 and 52 are strong. .
- the upper portion of the connector 4 is filled with a resin 25 to prevent leakage between the pair of electrode pins 42 or the pair of connecting conductors 24 due to dust accumulation. When used in a dust-free place, the resin 25 need not be filled.
- the assembled horizontal dimensions are integrated. Is a shape that does not exceed the horizontal dimension of the terminal board 2 alone.
- the terminal plate 2 has the largest horizontal dimension, and the dimension is 42 mm smaller than the upper opening of the outer frame body 11 as described above.
- the sheath type temperature measuring sensor 3 when the sheath type temperature measuring sensor 3 is replaced in the terminal head 1, the cable 12 (not shown in FIG. 1) connected to the cable wiring terminal 23 while removing the lid 12 and the terminal plate fixing screw 21 of the outer frame 11. 2, the terminal plate 2 to which the terminal fitting 22, the cable wiring terminal 23, the connecting conductor 24 and the connector 4 are attached, the connector 5 in which the coupling state with the connector 4 is held by the coupling nut 6, and this connector 5.
- This unit can be taken out from the upper opening of the outer frame 11 to the outside of the outer frame 11 by vertically moving the one integrated with the sheath type temperature measuring sensor 3 to which is fixed.
- the coupling nut 6 is loosened, the connector 5 fixed to the sheath-type temperature sensor 3 is removed from the connector 4, and a new connector 5 fixed to the new sheath-type temperature sensor 3 that has been prepared is attached.
- the connector 4 is coupled, and the coupling nut 6 is tightened to maintain the coupling.
- the unit that has been integrated again in this manner is inserted from the upper opening of the outer frame body 11, the terminal plate 2 is fixed to the outer frame body 11 by the terminal plate fixing screws 21, and the cable conductor is connected to the cable wiring terminal 23.
- the replacement of the sheath-type temperature sensor 3 is completed by connecting and screwing the lid 12 of the outer frame body 11 to the outer frame body 11.
- FIG. 1 illustrates the case where there are two conducting wires 31 of the sheath type temperature measuring sensor 3, but the number of sets of the cable wiring terminals 23, terminal fittings 22 and connecting conductors 24 is the number of conducting wires 31.
- the sheath-type temperature sensor is a sheathed thermocouple that accommodates one pair of thermocouple wires and a two-wire type sheathed resistance thermometer
- two sets of thermocouple elements are shown as shown in the figure.
- four sets, three sets, and four sets are required in the case of a three-wire type and four-wire type sheathed resistance thermometer.
- the conducting wire 31 in FIG. 1 is the conducting wire 31a or 31b in FIG.
- the outer frame 11 and its lid 12 are made of cast aluminum
- the terminal plate 2 is made of electrically insulating ceramics
- the bodies 41 and 51 of the connectors 4 and 5 are made of electricity. Insulating resin was used.
- the outer frame body 11 and its lid 12 are made of stainless steel
- the terminal board 2 is made of electrically insulating resin
- the bodies 41 and 51 of the connectors 4 and 5 are made of electrically insulating ceramics. Also good.
- the sheath-type temperature sensor 3 is a sheath thermocouple
- the material of the electrode pins 42 and 52, the connecting conductor 24, and the terminal fitting 22 is different from that of the thermocouple wire 31, Since the thermoelectromotive force is different from the thermoelectromotive force of the thermocouple element 31, an error may occur in the temperature measurement. Therefore, when the sheath type temperature measuring sensor 3 is a sheath thermocouple, the material of the electrode pins 42 and 52, the connecting conductor 24, and the terminal fitting 22 has the same thermoelectromotive force as the thermocouple strand 31 to be connected. It is desirable to use the same material as that of the thermocouple element 31 or the same material as the compensating conductor.
- the fixing of the connector 4 to the terminal plate 2 is performed using an adhesive in this embodiment, but may be fixed by other methods such as screwing.
- the connector 5 is fixed to the sheath-type temperature sensor 3 by using an adhesive in this embodiment, but may be fixed by screwing or fixing by tightening as follows.
- FIG. 2 (a) is a cross-sectional view showing the fixing of the connector to the sheath type temperature measuring sensor with the connector mounting screw.
- the lower cylindrical portion of the body 51 of the connector 5 may be fixed to the sheath 32 of the sheath-type temperature measuring sensor 3 with a connector mounting screw 58.
- FIG. 2B is a cross-sectional view showing fixing of the connector to the sheath type temperature measuring sensor by the fastening cylinder
- FIG. 2C is a diagram of the connector 5 on the sheath type temperature measuring sensor side of FIG. It is a side view of a lower cylindrical part. As shown in FIG.
- the lower cylindrical portion of the body 51 of the connector 5 is formed in a strip shape with axial slits 57a in the entire circumference, and a tightening tube 59a having a narrow inner diameter at the outer end is provided.
- a strip-shaped portion with a slit 57a serves as a mechanism for tightening the sheath 32 of the sheath-type temperature measuring sensor 3, and this tightening causes the lower cylindrical portion of the body 51 of the connector 5 to move.
- By providing unevenness on the inner surface of the strip-shaped portion to increase the coefficient of friction more reliable fixation can be achieved.
- FIG. 3 (a) is a cross-sectional view showing holding of connector connection by an arm having a key-like tip.
- the connection between the connector 4 and the connector 5 is maintained by providing a recess on the side surface of the body 41 of the connector 4 regardless of the connection nut, and the connector 5 is made of the same electrically insulating resin as the body 51 of the connector 5.
- An arm 54 having a key-like tip is provided, and the key-like portion of the arm 54 is hung on the recess to hold the connection.
- This utilizes the elasticity of the electrically insulating resin, which is the material of the body 51 of the connector 5, and is coupled with the arm 54 pulled outward, returning the arm 54 to its original position, and the key-like portion. Hang on the recess to maintain the bond. The release of the connection can be performed with the arm 54 pulled outward.
- a concave portion is provided on the side surface of the body 51 of the connector 5, and the connector 4 is provided with a plurality of key-shaped arms made of the same electrically insulating resin as the body 41 of the connector 4 to hold the connection. May be.
- FIG. 3B is a cross-sectional view showing connector holding by projections and through-holes
- FIG. 3C is a side view of the cylindrical portion inside FIG. 3B.
- the connection of the connector 4 and the connector 5 is maintained by using a cylindrical portion 43 at the end of the body 41 of the connector 4 to which the connector 5 is connected, instead of a connection nut or a lockable arm.
- the cylindrical portion 55 is also provided at the end portion on the side where 4 is coupled. In the coupled state, the cylindrical portion 55 is inserted into the cylindrical portion 43 at the end.
- the cylindrical portion 55 is provided with a plurality of projections 56 on the outer surface, the surface of the insertion direction being inclined in the direction opposite to the insertion direction, and the surface opposite to the insertion direction being inclined in the insertion direction. Further, substantially axial slits 57 b are provided on both sides of each projection 56.
- Each projection 56 is inserted into a through-hole 44 provided in the outer cylindrical portion 43 corresponding to each projection 56, so that the coup
- This embodiment also uses the elasticity of the electrically insulating resin that is the material of the body 51 of the connector 5.
- the protrusion 56 of the cylindrical portion 55 can move greatly in the radial direction due to the presence of the slit 57b.
- the surface in the insertion direction of the projection 56 is the insertion direction. Is inclined in the opposite direction, the projection 56 is pushed inward by the end of the cylindrical portion 43, and the insertion can be continued.
- the predetermined coupling position that is, each projection 56 reaches the corresponding position of each through hole 44
- the projection 56 pushed by the cylindrical portion 43 is inserted into the through hole 44 and returned to the original position. And the bond is retained.
- the projection 41 is formed in the through-hole because the surface opposite to the insertion direction of the projection 56 is inclined in the insertion direction by pulling the body 41 of the connector 4 or the body 51 of the connector 5 in the removal direction.
- the cylindrical portion 55 can be pulled out from the cylindrical portion 43 by being pushed inward by 44, and the coupling is released.
- the through-hole 44 is provided, but it may be a non-penetrating recess provided in the inner surface of the cylindrical portion 43 instead of the through-hole 44, and the connector 5 side of the body 51 of the connector 5
- the end of the connector 5 has a cylindrical shape, a through-hole or a concave portion on the inner surface, a cylindrical portion having a protrusion and a slit on the surface of the body 41 of the connector 4 on the side to which the connector 5 is coupled. It is good also as a structure which inserts the cylindrical part of the connector 4 in a part.
- the protrusion 56 and the slit 57b may be provided on the inner surface of the outer cylindrical portion, and the through hole 44 or the recess may be provided on the inner cylindrical portion.
- the principle of operation is the same as that of the embodiment corresponding to the above third aspect except that the projection is pushed and moved outward when the pair of plug-in connectors are connected and separated. is there.
- the inner cylindrical portion does not require elasticity, and may be columnar.
- the male screw is cut on the outer surface of the inner cylindrical portion or the columnar portion, and the female screw is cut on the inner surface of the outer cylindrical portion.
- the male screw and female screw may be screwed together to hold the connection.
- the connection between the connector 4 and the connector 5 may be held by using a screw, as shown in FIGS. 2B and 2C.
- the slit is formed in the entire circumference of the end of the outer cylindrical portion, and the coupling is held by tightening the inserted connector with the tightening cylinder. Also good.
- the present invention is not limited by the above embodiment as a matter of course, and it is needless to say that the present invention can be carried out with appropriate modifications within a range that can meet the gist of the present invention. These are all possible and are within the scope of the present invention.
- a terminal head of a sheath-type temperature sensor for connecting a cable to a sheath-type temperature sensor, specifically, a temperature sensor that is a sheath thermocouple or a resistance temperature detector.
- a temperature sensor that is a sheath thermocouple or a resistance temperature detector since the tip is inserted into a severe environment such as a high temperature atmosphere or a corrosive atmosphere, it is effective as a terminal head of a sheath type temperature sensor having a short replacement cycle.
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Abstract
Description
本発明の第1の態様は、筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成されたケーブルが挿入される側部開口と、底部に形成されたシース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより外枠体の内部に固定され、水平方向の寸法が外枠体の上部開口の水平方向の寸法より小さく、端子板固定ビスを外して垂直に上方向へ移動することによって、蓋を外した外枠体の上部開口から外枠体の外に取り出すことが可能な位置に設けられた端子板と、
端子板の上面にシース型測温センサの導線と同数取り付けられた端子金具と、
端子金具と螺合することにより、ケーブルの各導線を端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中にシース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中にオスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、オスコネクタまたはメスコネクタのいずれか一方のコネクタは端子板に取り付けられ、他方のコネクタはシース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、
端子板側に取り付けられたコネクタとシース型測温センサ側に取り付けられたコネクタとが結合した状態において、両コネクタを跨いだ位置にあってネジ締めにより結合状態を保持させる結合ナットと、を有し、
端子板側に取り付けられたコネクタは、シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに端子板に固定され、端子板側に取り付けられたコネクタの電極ピンとケーブル配線端子は、電極ピンの上端部と端子金具を結ぶ繋ぎ導体と、端子金具とにより電気的に繋がれており、
シース型測温センサ側に取り付けられたコネクタは、端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態においてシース型測温センサが略垂直となるようにシース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部にシース型測温センサのシースの上端部が挿入された状態で、シース型測温センサに固定されていて、シース型測温センサ側に取り付けられたコネクタの各電極ピンの下端部にはシースの外に出たシース型測温センサの導線が繋がれ、
端子板、端子金具、ケーブル配線端子、1対の差し込み式コネクタ、結合ナット及びシース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が端子板の水平方向寸法を超えないものである。
なお、一方のコネクタと他方のコネクタを跨ぐ結合ナットを締めることによりコネクタの結合が保持され、結合ナットを緩めることにより結合が解除されるので、1対の差し込み式コネクタの結合及び結合の解除は、シース型測温センサの取り替え現場であっても容易に行うことができる。
第1の態様では、1対の差し込み式コネクタの結合の保持を結合ナットによった。これに替えて、本発明の第2の態様では、
1対の差し込み式コネクタの一方のコネクタの側面に凹部を複数設け、他方のコネクタには、他方のコネクタのボディと同じ電気絶縁性樹脂を材質とする先端が鍵状となった腕を複数設けて、一方のコネクタの凹部に他方のコネクタの腕の鍵状部を掛けることにより、1対の差し込み式コネクタの結合を保持するようにした。
本態様での結合の保持は、コネクタのボディの材質である電気絶縁性樹脂の弾力性を利用したものである。腕を外側に引いた状態で結合し、腕を元の位置に復帰させて鍵状部を凹部に掛ければ結合が保持され、結合の解除は腕を外側に引いた状態において行うことができるので、1対の差し込み式コネクタの一方のコネクタと他方のコネクタとの結合及び結合の解除を、シース型測温センサの取り替え現場において容易に行うことができるのも、第1の態様と同様である。
第1及び第2の態様における1対の差し込み式コネクタの結合の保持方法に替えて、本発明の第3の態様では、
1対の差し込み式コネクタのオスコネクタとメスコネクタの両コネクタの結合される側に円筒状部が設けられ、少なくとも一方のコネクタの円筒状部は、他方のコネクタに接する側の末端にあり、一方のコネクタと他方のコネクタは、一方のコネクタの末端に設けられた円筒状部に、他方のコネクタの円筒状部が挿入されることにより結合され、
他方のコネクタの円筒状部外面には、挿入方向の面が挿入方向と逆方向に傾斜し、挿入方向と逆の面が挿入方向に傾斜した複数の突起が形成されるとともに、各突起の両側に略軸方向のスリットが形成され、
一方のコネクタの円筒状部には、他方のコネクタの外面に設けられた各突起に対応した貫通孔または内面の凹部が形成され、
一方のコネクタと他方のコネクタの結合は、他方のコネクタに設けられた各突起が、一方のコネクタの貫通孔または凹部に差し込まれることにより保持されるようにした。
本様態での結合の保持も、コネクタのボディの材質である電気絶縁性樹脂の弾力性を利用したものである。内側の円筒状部の突起はスリットの存在によって径方向に大きく動くことができる。このため、内側の円筒状部を外側の円筒状部に挿入する際に、外側の円筒状部の端に突起が達すると、突起の挿入方向の面は挿入方向とは逆に傾いているため円筒状部の端によって突起が内側に押され、引き続き挿入を続けることができる。そして、各突起が対応する各貫通孔または凹部の位置に達すると、外側の円筒状部により押されていた突起が貫通孔または凹部に差し込まれて元の位置に復帰し、一方のコネクタと他方のコネクタの結合を保持する。また、一方のコネクタと他方のコネクタの結合を外す場合は、外す方向にコネクタを引っ張ることにより、突起の挿入方向と逆の面は挿入方向に傾いているため突起が貫通孔または凹部により内側に押され、内側の円筒部状を外側の円筒状部から引き抜くことができる。このように、1対の差し込み式コネクタの一方のコネクタと他方のコネクタとの結合及び結合の解除を、シース型測温センサの取り替え現場において容易に実施できるのも、第1、第2の態様と同様である。
第1乃至第3態様での1対の差し込み式コネクタの結合の保持方法に替えて、本発明の第4の態様では、
1対の差し込み式コネクタのオスコネクタとメスコネクタの両コネクタの結合される側に円筒状部が設けられ、少なくとも一方のコネクタの円筒状部は、他方のコネクタに接する側の末端にあり、一方のコネクタと他方のコネクタは、一方のコネクタの末端に設けられた円筒状部に、他方のコネクタの円筒状部が挿入されることにより結合され、
一方のコネクタの円筒状部内面には、挿入方向の面が挿入方向と逆方向に傾斜し、挿入方向と逆の面が挿入方向に傾斜した複数の突起が形成されるとともに、各突起の両側に略軸方向のスリットが形成され、
他方のコネクタには、一方のコネクタの内面に設けられた各突起に対応した貫通孔または外面の凹部が形成され、
一方のコネクタと他方のコネクタの結合は、一方のコネクタに設けられた各突起が、他方のコネクタの貫通孔または凹部に差し込まれることにより保持する。
第1乃至第4態様での1対の差し込み式コネクタの結合の保持方法に替えて、本発明の第5の態様では、
1対の差し込み式コネクタのオスコネクタとメスコネクタのいずれか一方のコネクタの他方のコネクタに接する側の末端に円筒状部が設けられ、他方のコネクタの一方のコネクタの接する側に円筒状部または円柱部が設けられ、一方のコネクタと他方のコネクタは、一方のコネクタの末端に設けられた円筒状部に他方のコネクタの円筒状部または円柱部が挿入されることにより結合され、
一方のコネクタの円筒状部内面にはメスネジが、他方のコネクタの円筒状部または円柱部外面にはオスネジが切られていて、
一方のコネクタと前記他方のコネクタの結合は、オスネジとメスネジを螺合することにより保持する。
11 外枠体
12 蓋
2 端子板
21 端子板固定ビス
22 端子金具
23 ケーブル配線端子
24 繋ぎ導体
3 シース型測温センサ
31 導線
32 シース
33 無機絶縁材粉末
34 樹脂シール
4 コネクタ(端子板側)
41 ボディ
42 メスの電極ピン
5 コネクタ(シース型測温センサ側)
51 ボディ
52 オスの電極ピン
6 結合ナット
Claims (5)
- 筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、該測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成された前記ケーブルが挿入される側部開口と、底部に形成された前記シース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
該外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより前記外枠体の内部に固定され、水平方向の寸法が前記外枠体の上部開口の水平方向の寸法より小さく、該端子板固定ビスを外して垂直に上方向へ移動することによって、前記蓋を外した該外枠体の上部開口から該外枠体の外に取り出すことが可能な位置に設けられた端子板と、
該端子板の上面に前記シース型測温センサの導線と同数取り付けられた端子金具と、
該端子金具と螺合することにより、前記ケーブルの各導線を該端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中に前記シース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中に該オスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、該オスコネクタまたは該メスコネクタのいずれか一方のコネクタは前記端子板に取り付けられ、他方のコネクタは前記シース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、
端子板側に取り付けられたコネクタとシース型測温センサ側に取り付けられたコネクタとが結合した状態において、該両コネクタを跨いだ位置にあってネジ締めにより結合状態を保持させる結合ナットと、を有し、
前記端子板側に取り付けられたコネクタは、前記シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに前記端子板に固定され、該端子板側に取り付けられたコネクタの前記電極ピンと前記ケーブル配線端子は、該電極ピンの上端部と該端子金具を結ぶ繋ぎ導体と、前記端子金具とにより電気的に繋がれており、
前記シース型測温センサ側に取り付けられたコネクタは、前記端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態において該シース型測温センサが略垂直となるように該シース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部に前記シース型測温センサのシースの上端部が挿入された状態で、前記シース型測温センサに固定されていて、該シース型測温センサ側に取り付けられたコネクタの前記各電極ピンの下端部には前記シースの外に出た前記シース型測温センサの導線が繋がれ、
前記端子板、前記端子金具、前記ケーブル配線端子、前記1対の差し込み式コネクタ、前記結合ナット及び前記シース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が前記端子板の水平方向寸法を超えないシース型測温センサのターミナルヘッド。 - 筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、該測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成された前記ケーブルが挿入される側部開口と、底部に形成された前記シース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
該外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより前記外枠体の内部に固定され、水平方向の寸法が前記外枠体の上部開口の水平方向の寸法より小さく、該端子板固定ビスを外して垂直に上方向へ移動することによって、前記蓋を外した該外枠体の上部開口から該外枠体の外に取り出すことが可能な位置に設けられた端子板と、
該端子板の上面に前記シース型測温センサの導線と同数取り付けられた端子金具と、
該端子金具と螺合することにより、前記ケーブルの各導線を該端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中に前記シース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中に該オスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、該オスコネクタまたは該メスコネクタのいずれか一方のコネクタは前記端子板に取り付けられ、他方のコネクタは前記シース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、を有し、
前記端子板側に取り付けられたコネクタは、前記シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに前記端子板に固定され、該端子板側に取り付けられたコネクタの前記電極ピンと前記ケーブル配線端子は、該電極ピンの上端部と該端子金具を結ぶ繋ぎ導体と、前記端子金具とにより電気的に繋がれており、
前記シース型測温センサ側に取り付けられたコネクタは、前記端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態において該シース型測温センサが略垂直となるように該シース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部に前記シース型測温センサのシースの上端部が挿入された状態で、前記シース型測温センサに固定されていて、該シース型測温センサ側に取り付けられたコネクタの前記各電極ピンの下端部には前記シースの外に出た前記シース型測温センサの導線が繋がれ、
前記1対の差し込み式コネクタは、一方のコネクタの側面に凹部を複数設け、他方のコネクタには、該他方のコネクタのボディと同じ電気絶縁性樹脂を材質とする先端が鍵状となった腕を複数設け、該一方のコネクタの凹部に該他方のコネクタの腕の鍵状部を掛けることにより、該一方のコネクタと他方のコネクタの結合が保持され、
前記端子板、前記端子金具、前記ケーブル配線端子、前記1対の差し込み式コネクタ、及び前記シース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が前記端子板の水平方向寸法を超えないシース型測温センサのターミナルヘッド。 - 筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、該測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成された前記ケーブルが挿入される側部開口と、底部に形成された前記シース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
該外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより前記外枠体の内部に固定され、水平方向の寸法が前記外枠体の上部開口の水平方向の寸法より小さく、該端子板固定ビスを外して垂直に上方向へ移動することによって、前記蓋を外した該外枠体の上部開口から該外枠体の外に取り出すことが可能な位置に設けられた端子板と、
該端子板の上面に前記シース型測温センサの導線と同数取り付けられた端子金具と、
該端子金具と螺合することにより、前記ケーブルの各導線を該端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中に前記シース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中に該オスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、該オスコネクタまたは該メスコネクタのいずれか一方のコネクタは前記端子板に取り付けられ、他方のコネクタは前記シース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、を有し、
前記端子板側に取り付けられたコネクタは、前記シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに前記端子板に固定され、該端子板側に取り付けられたコネクタの前記電極ピンと前記ケーブル配線端子は、該電極ピンの上端部と該端子金具を結ぶ繋ぎ導体と、前記端子金具とにより電気的に繋がれており、
前記シース型測温センサ側に取り付けられたコネクタは、前記端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態において該シース型測温センサが略垂直となるように該シース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部に前記シース型測温センサのシースの上端部が挿入された状態で、前記シース型測温センサに固定されていて、該シース型測温センサ側に取り付けられたコネクタの前記各電極ピンの下端部には前記シースの外に出た前記シース型測温センサの導線が繋がれ、
前記1対の差し込み式コネクタは、前記オスコネクタと前記メスコネクタの両コネクタの結合される側に円筒状部が設けられ、少なくとも一方のコネクタの円筒状部は、他方のコネクタに接する側の末端にあり、該一方のコネクタと該他方のコネクタは、該一方のコネクタの末端に設けられた円筒状部に、該他方のコネクタの円筒状部が挿入されることにより結合され、
前記他方のコネクタの円筒状部外面には、挿入方向の面が挿入方向と逆方向に傾斜し、挿入方向と逆の面が挿入方向に傾斜した複数の突起が形成されるとともに、該各突起の両側に略軸方向のスリットが形成され、
前記一方のコネクタの円筒状部には、前記他方のコネクタの外面に設けられた各突起に対応した貫通孔または内面の凹部が形成され、
前記一方のコネクタと前記他方のコネクタの結合は、該他方のコネクタに設けられた前記各突起が、該一方のコネクタの前記貫通孔または前記凹部に差し込まれることにより保持され、
前記端子板、前記端子金具、前記ケーブル配線端子、前記1対の差し込み式コネクタ、及び前記シース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が前記端子板の水平方向寸法を超えないシース型測温センサのターミナルヘッド。 - 筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、該測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成された前記ケーブルが挿入される側部開口と、底部に形成された前記シース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
該外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより前記外枠体の内部に固定され、水平方向の寸法が前記外枠体の上部開口の水平方向の寸法より小さく、該端子板固定ビスを外して垂直に上方向へ移動することによって、前記蓋を外した該外枠体の上部開口から該外枠体の外に取り出すことが可能な位置に設けられた端子板と、
該端子板の上面に前記シース型測温センサの導線と同数取り付けられた端子金具と、
該端子金具と螺合することにより、前記ケーブルの各導線を該端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中に前記シース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中に該オスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、該オスコネクタまたは該メスコネクタのいずれか一方のコネクタは前記端子板に取り付けられ、他方のコネクタは前記シース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、を有し、
前記端子板側に取り付けられたコネクタは、前記シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに前記端子板に固定され、該端子板側に取り付けられたコネクタの前記電極ピンと前記ケーブル配線端子は、該電極ピンの上端部と該端子金具を結ぶ繋ぎ導体と、前記端子金具とにより電気的に繋がれており、
前記シース型測温センサ側に取り付けられたコネクタは、前記端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態において該シース型測温センサが略垂直となるように該シース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部に前記シース型測温センサのシースの上端部が挿入された状態で、前記シース型測温センサに固定されていて、該シース型測温センサ側に取り付けられたコネクタの前記各電極ピンの下端部には前記シースの外に出た前記シース型測温センサの導線が繋がれ、
前記1対の差し込み式コネクタは、前記オスコネクタと前記メスコネクタの両コネクタの結合される側に円筒状部が設けられ、少なくとも一方のコネクタの円筒状部は、他方のコネクタに接する側の末端にあり、該一方のコネクタと該他方のコネクタは、該一方のコネクタの末端に設けられた円筒状部に、該他方のコネクタの円筒状部が挿入されることにより結合され、
前記一方のコネクタの円筒状部内面には、挿入方向の面が挿入方向と逆方向に傾斜し、挿入方向と逆の面が挿入方向に傾斜した複数の突起が形成されるとともに、該各突起の両側に略軸方向のスリットが形成され、
前記他方のコネクタには、前記一方のコネクタの内面に設けられた各突起に対応した貫通孔または外面の凹部が形成され、
前記一方のコネクタと前記他方のコネクタの結合は、該一方のコネクタに設けられた前記各突起が、該他方のコネクタの前記貫通孔または前記凹部に差し込まれることにより保持され、
前記端子板、前記端子金具、前記ケーブル配線端子、前記1対の差し込み式コネクタ、及び前記シース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が前記端子板の水平方向寸法を超えないシース型測温センサのターミナルヘッド。 - 筒状の金属シースの中に無機絶縁材粉末を介在させて測温センサを収容したシース型測温センサに、該測温センサの信号を伝送するためのケーブルを接続するために設けるシース型測温センサのターミナルヘッドであって、
上部に形成された上部開口と、側部に形成された前記ケーブルが挿入される側部開口と、底部に形成された前記シース型測温センサが略垂直に挿入される底部開口を有する外枠体と、
該外枠体の上部開口に螺合により取り付けられた蓋と、
電気絶縁材を材質とし、複数の端子板固定ビスにより前記外枠体の内部に固定され、水平方向の寸法が前記外枠体の上部開口の水平方向の寸法より小さく、該端子板固定ビスを外して垂直に上方向へ移動することによって、前記蓋を外した該外枠体の上部開口から該外枠体の外に取り出すことが可能な位置に設けられた端子板と、
該端子板の上面に前記シース型測温センサの導線と同数取り付けられた端子金具と、
該端子金具と螺合することにより、前記ケーブルの各導線を該端子金具に繋げるケーブル配線端子と、
電気絶縁性樹脂を材質とするボディの中に前記シース型測温センサの導線と同数のオスの電極ピンが設けられたオスコネクタと、電気絶縁性樹脂を材質とするボディの中に該オスコネクタの電極ピンと同数のメスの電極ピンが設けられたメスコネクタを備え、該オスコネクタまたは該メスコネクタのいずれか一方のコネクタは前記端子板に取り付けられ、他方のコネクタは前記シース型測温センサのシースの上端部に取り付けられた1対の差し込み式コネクタと、を有し、
前記端子板側に取り付けられたコネクタは、前記シース型測温センサ側に取り付けられたコネクタが下方向から結合する向きに前記端子板に固定され、該端子板側に取り付けられたコネクタの前記電極ピンと前記ケーブル配線端子は、該電極ピンの上端部と該端子金具を結ぶ繋ぎ導体と、前記端子金具とにより電気的に繋がれており、
前記シース型測温センサ側に取り付けられたコネクタは、前記端子板側に取り付けられたコネクタが上方向から結合する方向で、かつ、結合した状態において該シース型測温センサが略垂直となるように該シース型測温センサ側に取り付けられたコネクタの円筒状をしたボディの下部に前記シース型測温センサのシースの上端部が挿入された状態で、前記シース型測温センサに固定されていて、該シース型測温センサ側に取り付けられたコネクタの前記各電極ピンの下端部には前記シースの外に出た前記シース型測温センサの導線が繋がれ、
前記1対の差し込み式コネクタは、前記オスコネクタと前記メスコネクタのいずれか一方のコネクタの他方のコネクタに接する側の末端に円筒状部が設けられ、該他方のコネクタの該一方のコネクタの接する側に円筒状部または円柱部が設けられ、該一方のコネクタと該他方のコネクタは、該一方のコネクタの末端に設けられた円筒状部に該他方のコネクタの円筒状部または円柱部が挿入されることにより結合され、
前記一方のコネクタの円筒状部内面にはメスネジが、前記他方のコネクタの円筒状部または円柱部外面にはオスネジが切られていて、
前記一方のコネクタと前記他方のコネクタの結合は、前記オスネジと前記メスネジを螺合することにより保持され、
前記端子板、前記端子金具、前記ケーブル配線端子、前記1対の差し込み式コネクタ、及び前記シース型測温センサが組み立てられた状態おいて、組み立てられた一体の水平方向の寸法が前記端子板の水平方向寸法を超えないシース型測温センサのターミナルヘッド。
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US10295491B2 (en) | 2016-05-11 | 2019-05-21 | Daily Instruments | Mineral insulated sheathed assembly with insulation resistance indicator |
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- 2014-04-22 JP JP2014537387A patent/JP5661978B1/ja active Active
- 2014-04-22 CN CN201480005935.7A patent/CN105492093B/zh active Active
- 2014-04-22 US US14/419,725 patent/US9671295B2/en active Active
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Also Published As
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JPWO2015162641A1 (ja) | 2017-04-13 |
US20160252404A1 (en) | 2016-09-01 |
SG11201604095QA (en) | 2016-07-28 |
CN105492093B (zh) | 2018-02-02 |
CN105492093A (zh) | 2016-04-13 |
JP5661978B1 (ja) | 2015-01-28 |
US9671295B2 (en) | 2017-06-06 |
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