WO2005031213A1 - ガス立消え安全装置 - Google Patents
ガス立消え安全装置 Download PDFInfo
- Publication number
- WO2005031213A1 WO2005031213A1 PCT/JP2004/014223 JP2004014223W WO2005031213A1 WO 2005031213 A1 WO2005031213 A1 WO 2005031213A1 JP 2004014223 W JP2004014223 W JP 2004014223W WO 2005031213 A1 WO2005031213 A1 WO 2005031213A1
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- WO
- WIPO (PCT)
- Prior art keywords
- male terminal
- terminal
- cylindrical
- cylindrical male
- safety device
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/245—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
- F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q9/00—Pilot flame igniters
- F23Q9/08—Pilot flame igniters with interlock with main fuel supply
- F23Q9/12—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
- H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2900/00—Special features of, or arrangements for controlling combustion
- F23N2900/05101—Connections between thermocouple and magnetic valves, e.g. by plug and socket connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/643—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for rigid cylindrical bodies
Definitions
- the present invention relates to a gas extinguishing safety device applied to a gas stove, a gas heater, or the like, and particularly relates to a thermocouple unit and an electromagnetic valve tut operated by a current generated by the thermoelectromotive force.
- a gas extinguishing safety device connected to the
- a main parner 2 disposed at an upper end of a gas supply pipe 1 and an auxiliary supply pipe 3 branched from the gas supply pipe 1 are disposed at a tip end.
- Valve 4 that opens and closes the passage of the gas supply pipe 1, an electromagnetic valve cut 6, and a thermocouple unit 7 having cables 7 a ′ and 7 connected to the electromagnetic valve unit 6.
- the operating shaft 9 is pushed to introduce gas into the gas supply pipe 1 and the auxiliary supply pipe 3, and when the main parner 2 is ignited by the flame of the ignition parner 4, the main The flame of the amplifier 2 heats the tip (thermosensitive part) of the thermocouple unit 7. Then, a thermoelectromotive force is generated in the thermocouple unit 7, and the current generated by the thermoelectromotive force flows through the coil of the solenoid valve unit 6 to generate an electromagnetic force. Keep the passage open.
- thermocouple unit 7 stops, the thermoelectromotive force, that is, the electromagnetic force disappears, and the valve body 5 is returned by the return panel 10. Returned to close gas passage. As a result, the emission of unburned gas can be prevented.
- the solenoid valve unit 6 and the thermocouple unit 7 are connected to two male terminals 6a and 6b provided on the solenoid valve unit 6 side as shown in Figs. 14 (a) and 14 (b).
- the two female terminals 7a and 7b provided on the thermocouple unit 7 side are connected to each other so as to be electrically connected. That is, two pairs of male terminals 6a and 6b and female terminals 7a and 7b having substantially the same shape are arranged in parallel with each other and are detachably connected to each other.
- thermocouple units 7 are provided as cables 7a7 connected to the female terminals 7a and 7b, respectively, and as thermosensitive portions provided at the ends of the cables 7a7.
- the rod-shaped conductor 7a ⁇ , the cylindrical conductor 7b ⁇ which is arranged around the rod-shaped conductor 7a ⁇ and whose tip is formed in a conical shape with a tapered end and which is joined to the rod-shaped conductor 7a ⁇ , and the outer diameter ⁇ D of which At the tip where the rod-shaped conductor 7a ⁇ and the cylindrical conductor 7b ⁇ are joined to have a hot junction P1 and a cold junction P2, P3 at a predetermined distance from the hot junction P1. Formed!
- Patent Document 1 JP-A-2000-18591
- Patent Document 2 JP-A-8-178296
- thermocouple unit 7 is required to have high electromotive force, high responsiveness, and the like so that the disappearance of gas can be detected with high accuracy. In order to achieve the above, it is necessary to satisfy these performances without increasing the size of the heat-sensitive sections (7a to 7b ", 7 to), causing a high cost, and the like.
- the present invention has been made in view of the circumstances of the above-described conventional apparatus, and an object thereof is to reduce the size of the apparatus, reduce the cost, facilitate the assembly work, and the like.
- An object of the present invention is to provide a gas extinguishing safety device capable of improving performance reliability.
- the gas extinguishing safety device of the present invention includes a thermocouple unit having two terminals connected to a thermosensitive part, and a thermocouple unit connected to an exciting coil and provided in the thermocouple unit.
- the two terminals that are individually connected to the two terminals and the coil are energized.
- An electromagnetic valve unit provided with a valve element driven by an electromagnetic force generated by the electromagnetic valve unit, and either one of the two terminals provided in the thermocouple unit or the two terminals provided in the electromagnetic valve unit
- One of the thermocouple unit is composed of a cylindrical male terminal including at least an arc-shaped portion of a cylinder, and one of an inner male terminal and an inner female terminal disposed inside the cylindrical male terminal.
- An outer female terminal connected to at least one of the inner and outer walls of the cylindrical male terminal, the other of the two held terminals or the two terminals held by the solenoid valve unit;
- the internal male terminal and the internal female terminal are arranged inside the cylindrical male terminal.
- thermocouple unit and the solenoid valve unit when the thermocouple unit and the solenoid valve unit are integrally connected, the cylindrical male terminal provided on one of the thermocouple unit and the solenoid valve unit is connected to the thermocouple unit. Or the solenoid valve unit is connected to an external female terminal provided on the other side. Either the inner male terminal or the inner female terminal provided in the axial direction of the center axis position of the cylindrical male terminal, either the inner male terminal or the inner female terminal provided in a unit different from the unit equipped with the cylindrical male terminal Connected to either of the other.
- connection (fitting) between the thermocouple unit and the solenoid valve cutout can be achieved by arranging the terminals in a direction parallel to the axial direction of the cylindrical male terminal, thereby achieving a narrower and smaller device.
- the cylindrical male terminal can be connected to the outer female terminal at any position in the arc direction of the cylindrical male terminal, the angle of attachment between the thermocouple unit and the solenoid valve unit should be adjusted when connecting the thermocouple unit and the solenoid valve unit. The degree of freedom can be obtained.
- the inner female terminal is composed of a pair of panel pieces that can clamp the inner male terminal, and the outer female terminal is a pair of springs that can clamp the wall surface of the cylindrical male terminal from inside and outside.
- a one-piece configuration can be employed.
- the pin-shaped male terminal is sandwiched by the inner female terminal that also has a panel force, and the cylindrical male terminal is also sandwiched by the outer female terminal made of a spring piece on the inside and outside of the wall surface. Therefore, electrical contact is reliably performed.
- the inner female terminal and the outer female terminal are bent in a substantially V shape so as to have a flexible piece, and the cylindrical male terminal and the inner male terminal are formed of the flexible piece.
- a configuration that can be inserted and removed in a direction substantially perpendicular to the radius direction can be adopted.
- the male terminal (cylindrical male terminal and inner male terminal) and the female terminal (inner female terminal and Since the contact pressure with the outer and outer female terminals acts substantially uniformly in the insertion and removal directions, electrical contact can be reliably obtained in a stable state.
- a configuration may be employed in which the cylindrical male terminal is formed to be longer than a terminal provided inside the cylindrical male terminal.
- the pin-shaped male terminal when the solenoid valve unit and the thermocouple unit are separated from each other, the pin-shaped male terminal is in a state in which the pin-shaped male terminal enters the inside without protruding. Can be prevented.
- the same outer female terminal and inner female terminal forming a pair of female terminals can be employed, and therefore, low cost siding can be achieved by using common components.
- thermocouple unit or the solenoid valve unit when either the thermocouple unit or the solenoid valve unit is provided with an inner female terminal and an outer female terminal, the unit having the two female terminals holds the inner female terminal and holds the inner female terminal.
- a fitting portion fitted inside the male terminal and a holding piece for holding the external female terminal in cooperation with the outer peripheral surface of the fitting portion and sandwiching the cylindrical male terminal from the outside. Can be used.
- the fitting portion is fitted inside the cylindrical male terminal, and the pin-shaped male terminal is attached to the inner female terminal surrounded by the fitting portion.
- the cylindrical male terminal is pinched in cooperation with the outer peripheral surface of the fitting portion by being connected, and the inner and outer surfaces of the cylindrical male terminal are connected to the outer female terminal, so that reliable electrical contact is obtained.
- the configuration is adopted in which the cylindrical male terminal is formed to have substantially the same thickness, and the fitting portion is formed in a substantially columnar shape so as to fit the cylindrical male terminal. can do.
- thermocouple unit having a cylindrical shape and the substantially cylindrical fitting portion (thermocouple unit) that fits the cylindrical male terminal are point-symmetrical about the axis. Will be fitted. Therefore, the thermocouple unit and the solenoid valve unit can be fitted to each other even if they have no directivity and are inclined in the direction of the angle V, and the assembly operation can be easily performed.
- the cylindrical male terminal may have a folded portion whose leading edge is folded inward. And the fitting portion has a claw portion hooked on the folded portion.
- the fitting portion has a deformable portion that can be elastically deformed in a direction substantially perpendicular to the fitting direction to the cylindrical male terminal, and the claw portion is formed at a tip of the deformed portion.
- a configuration can be employed.
- a configuration may be adopted in which the cylindrical male terminal integrally has a mounting flange for fixing the electromagnetic valve unit at a desired position.
- the gas extinguishing safety device including the solenoid valve unit and the thermocouple unit can be fixed by fixing the cylindrical male terminal to a desired position as a mounting flange while grounding.
- a configuration may be adopted in which the cylindrical male terminal integrally has a screw-in cap for fixing the electromagnetic valve unit at a desired position.
- the gas extinguishing safety device including the solenoid valve unit and the thermocouple unit can be fixed by screwing the screw cap into a desired position while grounding the cylindrical male terminal.
- the solenoid valve unit includes a movable iron core movable integrally with the valve body, and a fixed iron core on which a coil is wound, and the cylindrical male terminal integrally includes a holder for holding the fixed iron core.
- the configuration having the following can be adopted.
- the gas extinguishing safety device of the present invention provides a thermocouple unit having a thermosensitive portion at a tip thereof, and an electromagnetic valve driven by an electromagnetic force generated based on thermoelectromotive force generated by the thermocouple unit.
- the cold junction at the rear end is formed thicker than the hot junction at the top joined to the rod-shaped conductor. ing.
- the cold junction portion side of the cylindrical conductor is formed thick, so that even if the outer diameter is reduced as compared with the conventional case, the electromotive force characteristics and responsiveness are maintained as before, and the size is reduced.
- the electromotive force characteristics and the responsiveness can be improved as compared with the related art.
- a small-diameter tip portion having the smallest outer diameter is formed in a joining region at the distal end of the rod-shaped conductor and the cylindrical conductor, and the small-diameter tip portion extends from the hot junction to the cold junction.
- a configuration can be employed that is formed to a length of about 30-50% of the distance. According to this configuration, the electromotive force characteristics and the responsiveness can be improved (high electromotive force and high responsiveness) by increasing the length of the small-diameter portion at the tip as compared with the related art.
- the two terminals on the solenoid valve unit side and the two terminals on the thermocouple unit side are provided in the same axial direction. It is possible to consolidate, and to achieve narrower and smaller devices. Also, in one of the units provided with the cylindrical male terminal, by providing another terminal of one unit at the center axis position of the cylindrical male terminal, the external female terminal of the other unit is provided. Thus, the cylindrical male terminal can be fitted and connected at any angle about the center axis thereof, and when the thermocouple unit and the solenoid valve unit are connected, a degree of freedom can be obtained in the mounting angle of each other, and assembling is performed. Mounting work can be performed easily.
- the cylindrical conductor which is cylindrically arranged around the rod-shaped conductor and whose tip is formed in a conical shape and which is joined to the rod-shaped conductor is joined to the rod-shaped conductor.
- FIG. 1 shows one embodiment of a gas extinguishing safety device according to the present invention, wherein (a) is a front view of the device and (b) is a side view of the device.
- FIG. 2 is a cross-sectional view of the device shown in FIG. 1, cut in a fitting direction (axial direction).
- FIG. 3 is a cross-sectional view showing a state where a solenoid valve unit and a thermocouple unit constituting the device shown in FIG. 1 are separated.
- FIG. 4 (a) is a cross-sectional view taken along line E1-E1 in FIG. 2
- FIG. 4 (b) is a cross-sectional view taken along line E2-E2 in FIG.
- FIG. 5 is a cross-sectional view showing a part of a first connector of the thermocouple unit.
- FIG. 6 shows the relationship between the female terminal inside the thermocouple unit and the pin-shaped male terminal of the solenoid valve unit, (a) is a side view, (b) is a front view, and (c) is a part.
- FIG. 6 (d) is an enlarged front view, and is a cross-sectional view taken along line E3-E3 in FIG. 6 (c).
- FIG. 7 is a view showing a heat-sensitive portion of a thermocouple unit, where (a) is an external view and (b) is a cross-sectional view.
- FIG. 8 shows another embodiment of the thermosensitive part of the thermocouple unit, where (a) is an external view and (b) is a cross-sectional view.
- FIG. 9 is a cross-sectional view showing another embodiment of the gas extinguishing safety device according to the present invention.
- FIG. 10 is a sectional view showing still another embodiment of the gas extinguishing safety device according to the present invention.
- FIG. 11 is a perspective view showing another embodiment of the gas extinguishing safety device according to the present invention.
- FIG. 12 is a sectional view of the gas extinguishing safety device shown in FIG. 11.
- FIG. 13 is a system diagram showing a gas inlet port system to which a conventional gas extinguishing safety device is applied.
- FIG. 14 shows a conventional gas extinguishing safety device, in which (a) is a cross-sectional view of the device and (b) is an end view of the device.
- FIG. 15 is a view showing a heat-sensitive portion of a thermocouple unit forming a part of a conventional gas extinguishing safety device, (a) is an external view, and (b) is a cross-sectional view. Explanation of reference numerals
- FIG. 1 is a front view and a side view showing the entire device
- FIG. 2 is a cross-sectional view in the axial direction of the device
- FIG. 3 is a cross-sectional view showing a state where the solenoid valve unit and the thermocouple unit are separated
- FIG. 4 is a cross-sectional view in a direction perpendicular to the axis of the device
- FIG. 5 is a cross-sectional view showing a part of the device
- FIG. FIG. 7 is a partial view showing the structure of the terminal
- FIG. 7 is a side view and a sectional view showing a heat-sensitive portion of the thermocouple unit.
- this device has a solenoid valve unit 100 and a thermocouple unit 200 detachably connected to each other.
- the solenoid valve unit 100 includes a fixed core 101, a fixed core 101. Resin bobbin 102 for holding the coil, fixed core 101 and exciting coil 103 wound integrally with bobbin 102, conductive holder 104 for fixing bobbin 102 by caulking, and one end 103a of coil 103.
- a pin-shaped male terminal (inner male terminal) 105 that is connected to form one of a pair of male terminals, an insulating member 106 that holds the pin-shaped male terminal 105 at the center of the holder 104, and electrically insulates both from each other.
- a cylindrical male terminal 107 which is the other of a pair of male terminals joined and formed of a conductive material, a resin case 108 covering the fixed iron core 101, and a shaft 109 slidably supported by the case 108.
- a movable iron core 110 fixed to one end of the shaft 109, a rubber valve body 111 fixed to the other end of the shaft 109, a spring 112 for urging the valve body 111 outward, and the like.
- the fixed iron core 101 is formed in a substantially U-shape from a magnetic material such as permalloy.
- the bobbin 102 is formed in a substantially inverted U-shape using an insulating material (a non-conductive material) such as a resin material, and the bobbin 102 and the fixed core 101 are substantially H-shaped while holding the fixed core 101.
- a coil 103 is wound around them in a vertical winding around them.
- the holder 104 is formed of a conductive material such as brass, and the upper end piece is caulked to fix the bobbin 103, and the other end 103b of the coil 103 is electrically connected to the upper end by welding, pressure welding, or the like. It is connected to the.
- the pin-shaped male terminal 105 is formed of a conductive material in a tapered cylindrical shape (needle shape) having a closed end. And, it is held at the center by the insulating member 106 without contact with the holder 104.
- the cylindrical male terminal 107 is formed into a cylindrical shape by molding (deep drawing) a conductive material such as a metal plate having a predetermined thickness, and has a substantially diamond-shaped mounting flange 107a at the upper end. Further, the leading edge is folded inward to form a folded portion 107b.
- the cylindrical male terminal 107 functions as a second connector fitted to the thermocouple unit 200 (a first connector 206 described later).
- the relationship between the cylindrical male terminal 107 and the pin-shaped male terminal 105 is that, as shown in FIG. 3, the pin-shaped male terminal 105 is arranged at the center inside the cylindrical male terminal 107 and The male terminal 107 is formed so as to be longer than the male terminal 105 by the dimension L, that is, the male terminal 105 does not protrude from the male terminal 107. This prevents the pin-shaped male terminal 105 from coming into direct contact with other objects even if it is dropped or collides with other parts when handled only by the solenoid valve unit 100. Can be.
- the wall thickness of the cylindrical male terminal 107 including the folded portion 107b and the outer diameter of the pin-shaped male terminal 105 are formed to have the same dimensions.
- the same inner female terminal 204 and outer female terminal 205 described later can be employed.
- the thermocouple unit 200 includes a thermosensitive portion 201 formed at the tip, a first cable 202 and a second cable 203, and a first cable 202 led from the thermosensitive portion 201.
- An inner female terminal 204 connected to the end to form one of the pair of female terminals, an outer female terminal 205 connected to the end of the second cable 203 to form the other of the pair of female terminals, an inner female terminal 204 and
- the first connector 206 that holds the outer female terminal 205, a seal member 207 that closes one end of the first connector 206, and the like are formed.
- the cost can be reduced by using a common component.
- the heat-sensitive portion 201 has a rod-shaped conductor 201a connected to the first cable 202, and is disposed in a cylindrical shape around the rod-shaped conductor 201a.
- a rod-shaped conductor 201a connected to the first cable 202, and is disposed in a cylindrical shape around the rod-shaped conductor 201a.
- the rod-shaped conductor 201a is formed in a solid shape from an alloy material of Ni, Cu, and Mn.
- the cylindrical conductor 201b is made of an alloy material of Ni, Cr, and Fe, and has a conical tip and a cylindrical rear end, and has a cylindrical thickness greater than the thickness of the conical region. Is thicker.
- the outer diameter of the cylindrical portion of the cylindrical conductor 201b is formed smaller than the conventional one shown in FIG.
- the second cylindrical conductor 201c is formed in a cylindrical shape having an outer diameter of ⁇ , and has a smaller diameter D1 ( ⁇ ) than the conventional one shown in FIG.
- the hot junction portion P1 is located at the distal end region where the rod-shaped conductor 201a and the cylindrical conductor 201b are joined, and a rear position separated by a predetermined distance from the hot junction portion P1. It has cold junctions P2 and P3.
- the rear end of the cylindrical conductor 201b that is, the cold junction P2 is thicker than the hot junction P1. Even if the outer diameter of the cylindrical conductor is reduced by 20 lb compared to the conventional one, it is possible to achieve miniaturization and low cost while maintaining the electromotive force characteristics and responsiveness as before. Can be done.
- a tip small-diameter portion having the smallest outer diameter ⁇ d is defined, and the length L1 of the tip small-diameter portion is defined as a hot junction portion.
- the length is about 30-50% of the distance from P1 to the cold junction P2.
- This dimension L1 is set longer than the dimension L of the conventional one shown in FIG. 15, and contributes to higher electromotive force and higher responsiveness.
- the other heat-sensitive portion 20 ° includes a cylindrical conductor 201 having the same outer diameter as the conventional one shown in FIG.
- the second cylindrical conductor 201 having the same outer diameter ⁇ D and the narrow portion at the front end having the same outer diameter ⁇ d and length L as the conventional one are adopted.
- the contact portion P2 may be formed to be thicker than the hot junction portion P1. In this case, the electromotive force characteristics and the responsiveness can be further improved with the same size as the conventional one.
- the inner female terminal 204 has a pin-shaped male terminal 105 which extends along its axis. It has a pair of non-pieces 204a, 204a formed so as to be sandwiched from both radially outer sides of the surface. As shown in FIG. 6 (d), each of the pair of non-pieces 204a and 204ai is bent into a substantially V-shape, and is opposed to each other to contact the outer peripheral surface of the pin-shaped male terminal 105 from both sides. It has a pair of flexible pieces 204a 204a ′ to be obtained.
- the pin-shaped male terminal 105 is positioned in the radial direction of the pair of flexible pieces 204a 204a '(Fig. 4 (a),
- the contact pressure between the pin-shaped male terminal 105 and the inner female terminal 204 acts substantially uniformly in the insertion and removal directions, it is possible to reliably obtain stable electrical contact therebetween. .
- the outer female terminal 205 is formed in substantially the same shape as the inner female terminal 204, and as shown in Figs. 3 and 4, sandwiches the wall surface of the cylindrical male terminal 107 between the inner and outer forces. ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 205 205.
- the outer female terminal 205 may be such that the wall surface of the cylindrical male terminal 107 contacts only one of the inner side and the outer side.
- tubular male terminal 107 a pair of oar viewed portion of the flexible pieces 205a 205 a '(FIGS. 4 (a), (horizontal b)) substantially perpendicular to the (FIGS. 4 (a) , (b) in a direction perpendicular to the plane of the paper), and can be freely inserted and removed!
- the first connector 206 holds the inner female terminal 204 and is fitted to the inside of the cylindrical male terminal 107.
- the outer periphery of the fitting portion 206 a The outer female terminal 205 is formed in cooperation with the surface, and is formed by a holding piece 206b and the like that sandwich the cylindrical male terminal 107 from the outside.
- the fitting portion 206a is formed so that a part thereof is cut in the fitting direction and includes a deformable portion 206 ⁇ that can be elastically deformed in a direction perpendicular to the fitting direction. Then, at the tip of the deformed portion 206, as shown in FIG. 5, a claw portion 206a, 'which is hooked on the folded portion 107b of the cylindrical male terminal 107 is formed physically.
- the fitting portion 206a when the fitting portion 206a is inserted into the cylindrical male terminal 107, if the deforming portion 206a is fitted to a predetermined position while being deformed inward, it returns elastically and is located at the tip thereof.
- the claw portions 206a ⁇ are engaged with the folded portions 107b of the cylindrical male terminals 107. That is, while the fitting operation between the fitting portion 206a (the first connector 206) and the cylindrical male terminal (second connector) 107 can be easily performed, the fitting portion 206a suddenly moves from the cylindrical male terminal 107. It can surely prevent falling off.
- the fitting portion 206a is formed in a substantially cylindrical shape so as to be integrated with the deformable portion 206 so as to fit the cylindrical male terminal 107 as the second connector having a cylindrical shape. That is, when the first connector 206 and the second connector (cylindrical male terminal) 107 are fitted, the fitting portion 206a is fitted inside the tubular male terminal 107, and the inside surrounded by the fitting portion 206a is fitted.
- the pin-shaped male terminal 105 is fitted and connected to the terminal 204, and the holding piece 206b cooperates with the outer peripheral surface of the fitting portion 206a to sandwich the cylindrical male terminal 107, and the outer female terminal 205 is connected to the cylindrical male terminal 1
- the cylindrical male terminal 107 is fitted and connected so that the inner and outer surfaces of 07 are in contact with each other, so that reliable electrical contact is obtained.
- the cylindrical male terminal (second connector) 107 and the fitting portion 206a (first connector 206) are fitted point-symmetrically around the axis, so that the first connector 206 and the second connector 206
- the connector (cylindrical male terminal) 107 has no directionality and can be fitted in any angle direction, so that the assembling work can be easily performed.
- the pin-shaped male terminal 105 is positioned so as to face the inner female terminal 204 and both are positioned.
- the fitting portion 206a (and the deformed portion 206) of the first connector 206 is inserted into the cylindrical male terminal (second connector) 107, the deformed portion 206 is deformed toward the center and the fitting is completed.
- the claw portions 206a ⁇ are hooked on the folded portions 107b, and the solenoid valve unit 100 and the thermocouple unit 200 are securely connected.
- the pin-shaped male terminal (inner male terminal) 105 enters the inner female terminal 204 and is sandwiched between the pair of spring pieces 204a, 204a. And, the outer peripheral surface enters the outer female terminal 205 and is held between the pair of spring pieces 205a, 205a.
- the pair of male terminals (the pin-shaped male terminal 105 and the cylindrical male terminal 107) and the pair of female terminals (the inner female terminal 204 and the outer female terminal 205) are electrically reliably connected.
- thermosensitive part 201 of the thermocouple unit 200 the operation when applied to the gas outlet system shown in FIG. 13 will be described.
- the operating shaft 9 is pushed, and the gas supply pipe 1 and the auxiliary supply pipe 3 are pushed.
- the gas is introduced into the furnace and the flame of the ignition parner 4 ignites the main parner 2.
- the flame of the main parner 2 heats the thermosensitive part 201 of the thermocouple unit 200.
- thermocouple unit 200 This heating generates a thermoelectromotive force in the thermocouple unit 200, and the current generated by the thermoelectromotive force flows through the coil 103 of the solenoid valve unit 100 via the first cable 202 and the second cable 203. Generates electromagnetic force. Then, the movable iron core 110 is attracted to the fixed iron core 101 by this electromagnetic force, and the valve body 111 is held in a state where the gas passage is opened. On the other hand, when the flame of the main parna 2 goes out due to blowout or boiling over, the thermocouple The heating of the knit 200 stops, the thermoelectromotive force, that is, the electromagnetic force disappears, and the valve body 111 is pushed back by the spring 112 to close the gas passage. As a result, the emission of unburned gas is prevented.
- FIG. 9 shows another embodiment of the gas extinguishing safety device according to the present invention.
- the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.
- this device is a modification of the above-described embodiment with a part of the solenoid valve unit 10CT being changed.
- a cylindrical male terminal 107 ' is adopted as a connector.
- the cylindrical male terminal 107 has a holder 107 for holding the fixed iron core 101 and the bobbin 102 integrally formed, and has a claw portion 206a to a cylindrical shape inside the fitting portion 206a.
- a step 107 for hooking the step is formed.
- the cylindrical male terminal 107 ' also serves as a second connector connected to the first connector 206 of the thermocouple unit 200 and a holder for holding the fixed iron core 101, so that the number of parts is reduced accordingly. Is reduced, the structure is simplified, and the device is downsized.
- FIG. 10 shows still another embodiment of the gas extinguishing safety device according to the present invention.
- the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. You.
- this device is obtained by changing a part of the solenoid valve units 100 to the above-described embodiment, and replacing the cylindrical male terminal 107 shown in FIG. 2 with a second connector. It employs a cylindrical male terminal 107 ".
- screw-in caps 107a to be screwed to the gas supply pipes 1 and the like are formed in the cylindrical male terminals 107 to, and the inside of the cylindrical shape in which the fitting portion 206a is fitted is formed inside the cylindrical male terminal 107 to.
- a step portion 107 ′ for hooking the claw portion 206 a ′ ′ is formed!
- the cylindrical male terminal 107 also serves as the second connector connected to the first connector 206 of the thermocouple unit 200 and the screw-in cap 107a to be screwed into a thread portion such as a pipe. Therefore, by screwing the screw cap 107a, 'to the desired position (for example, gas supply pipe) while grounding the cylindrical male terminal 107,', the gas extinguishing safety device is fixed without using a separate fixing member. can do.
- the cylindrical male terminals 107, 107 ′, 107 as the second connector are formed in a cylindrical shape, and the fitting portion 206a forming the first connector is formed in a substantially cylindrical shape.
- the present invention is not limited to this. For example, a rectangular cylindrical male terminal other than a circular shape and a fitting portion may be employed. The size can be reduced, and the pair of male terminals and the pair of female terminals can be securely connected.
- the force of the inner female terminal 204 and the outer female terminal 205 forming a pair of female terminals is represented by a pair of pieces 204a, 204a, 205a, 205a. It is not limited to this, but adopts a configuration with one or three or more spring pieces.
- the unit 200 includes a pair of female terminals, an inner female terminal 204 and an outer female terminal 205, and the pin-shaped male terminal 105 and the inner female terminal 204 are fitted to each other to connect the cylindrical male terminal 107 and the outer female terminal 205.
- the terminals provided in the solenoid valve unit 100 are not limited to two male terminals
- the terminals provided in the thermocouple unit 200 are two female terminals.
- Each of the solenoid valve unit 100 and the thermocouple unit 200 which is not limited to a terminal, has one male terminal and one female terminal.
- One of the first units 300 includes a cylindrical male terminal 301, a pair of inner female terminals 302 made of a spring material provided inside the cylindrical male terminal 301, and an outer side of the inner female terminal 302. And a supporting member 303 to be positioned.
- the support member 303 is made of an insulating material and is interposed between the cylindrical male terminal 301 and the inner female terminal 302. Assuming that the central axis of the cylinder of the cylindrical male terminal 301 is P, the pair of inner female terminals 302 are arranged at positions sandwiching the central axis P and extend in a direction parallel to the central axis P.
- the support member 303 has a cylindrical shape centered on the central axis P of the cylindrical male terminal 301, and the cylindrical shape forms a slit 304 parallel to the central axis P. Note that the support member 303 does not necessarily need to have the slit 304 formed therein.
- the tip of the inner female terminal 302 provided inside the cylindrical male terminal 301 is located outside the tip of the cylindrical male terminal 301. It shall not protrude.
- the cylindrical male terminal 301 has a shape including a circular arc portion of a cylinder (a shape in which a part of the cylinder is cut out), but the cylindrical male terminal 301 has a cylindrical shape without a notch. May be. It should be noted that the cylindrical male terminal 107 shown in FIGS. 1 to 4, 4, 9 and 10 also has a shape including a circular arc portion of the cylinder (a shape in which a part of the cylinder is cut away) shown in FIG. good.
- the second unit 400 includes a pin-shaped male terminal 401, a pair of outer female terminals 402 made of a spring material extending in parallel with the pin-shaped male terminal 401, and a support for supporting each outer female terminal 402. And a support member 403 which also serves as an insulating material.
- the cylindrical male terminal 301 of the first unit 300 is formed. Is in contact with the female terminal 402 of the second unit 400 at any position in the arc shape (any position at an angle of 360 degrees in the cylindrical shape having no notch).
- each of the first unit 300 and the second unit 400 has a male terminal and a female terminal, and both the first unit 300 and the second unit 400 necessarily have two terminals.
- the male terminal force is not limited to having two female terminals.
- the first unit 300 may be a solenoid valve cut 100 or a thermocouple cut 200
- the second unit 400 may be a thermocouple unit 200 or a solenoid valve unit 100. Is also good. 1 to 4, the solenoid valve unit 100 has a pair of male terminals, and the thermocouple unit 200 has a pair of female terminals. On the contrary, the solenoid valve unit 100 has a pair of female terminals.
- the thermocouple unit 200 may be provided with a pair of male terminals.
- the cylinder of the first unit 300 is Any position of the circular arc of the male terminal 301 (any position of 360 degrees in a cylindrical shape without a notch) can be pinched and contacted by the female terminal 402 of the second unit 400.
- the two terminals in the second unit 400 may be surrounded by a connector such as the second connector 206 shown in FIGS. Industrial applicability
- the gas extinguishing safety device of the present invention achieves narrowing, miniaturization, simplification of the structure, cost reduction, and securing the freedom of the angles at the time of connection. Any system that shuts off the gas passage when the gas flame inside suddenly goes out can be applied to gas heaters and other gas appliances, not limited to gas inlets.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04788290.7A EP1669673B1 (en) | 2003-09-30 | 2004-09-29 | Safety shut off device for gas burner |
JP2005514245A JP4198156B2 (ja) | 2003-09-30 | 2004-09-29 | ガス立消え安全装置 |
BRPI0414923-8A BRPI0414923A (pt) | 2003-09-30 | 2004-09-29 | dispositivo de segurança de queimador a gás |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003339063 | 2003-09-30 | ||
JP2003-339063 | 2003-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005031213A1 true WO2005031213A1 (ja) | 2005-04-07 |
Family
ID=34386177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/014223 WO2005031213A1 (ja) | 2003-09-30 | 2004-09-29 | ガス立消え安全装置 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1669673B1 (ja) |
JP (1) | JP4198156B2 (ja) |
CN (1) | CN100526718C (ja) |
BR (1) | BRPI0414923A (ja) |
WO (1) | WO2005031213A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007032659A (ja) * | 2005-07-26 | 2007-02-08 | Rinnai Corp | 電磁安全弁 |
CN105004442A (zh) * | 2015-05-11 | 2015-10-28 | 奥可利电子(昆山)有限公司 | 一种热电偶连接塑件 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT509486B1 (de) * | 2009-12-18 | 2011-09-15 | Fronius Int Gmbh | Brenner und verfahren zur stromerzeugung und bauteil für einen solchen brenner |
CN102405562B (zh) * | 2010-06-30 | 2015-08-19 | 萨巴夫股份有限公司 | 用于使热电偶与供气安全旋塞的磁性组件相连的电连接件 |
ES2394611B1 (es) * | 2010-07-09 | 2013-11-28 | Orkli, S.Coop. | Acoplamiento para conectar un termopar a una válvula electromagnética adaptada a un aparato de gas. |
JP2012079452A (ja) * | 2010-09-30 | 2012-04-19 | Yamatake Corp | 電子機器保持用ソケットおよび火炎センサ |
ITTO20110736A1 (it) * | 2011-08-05 | 2013-02-06 | Illinois Tool Works | Metodo di fabbricazione di una termocoppia per un piano di cottura e termocoppia cosi' ottenuta |
ES1138869Y (es) * | 2015-04-08 | 2015-07-28 | Orkli S Coop Ltda | Válvula de seguridad adaptada a un aparato de combustión a gas |
CN107437461B (zh) * | 2016-05-25 | 2018-09-18 | 四川艾德瑞电气有限公司 | 液浸式移相变压器用移相角快速转换装置 |
TR201820241A2 (tr) * | 2018-12-24 | 2020-07-21 | Arcelik As | Emni̇yet elemani i̇çeren bi̇r pi̇şi̇ri̇ci̇ ci̇haz |
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JPH01139917A (ja) * | 1987-11-26 | 1989-06-01 | Matsushita Electric Ind Co Ltd | ガス燃焼機器用熱電対装置 |
JPH0614742U (ja) * | 1992-07-14 | 1994-02-25 | パロマ工業株式会社 | 熱電対 |
JPH09184779A (ja) * | 1995-12-28 | 1997-07-15 | Matsushita Electric Works Ltd | 圧力センサ |
JP2000018591A (ja) * | 1998-07-03 | 2000-01-18 | Mikuni Adec Corp | ガス器具の安全装置 |
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ES1024395Y (es) * | 1993-03-31 | 1994-05-01 | Orkli S Coop Ltda | Acoplamiento coaxial de termopar al grupo magnetico que controla el paso de gas en quemadores. |
ES1030940Y (es) * | 1995-04-27 | 1996-08-01 | Vicent Manuel Valls | Conector para el termopar de un quemador de gas. |
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2004
- 2004-09-29 WO PCT/JP2004/014223 patent/WO2005031213A1/ja active Search and Examination
- 2004-09-29 CN CNB2004800280242A patent/CN100526718C/zh not_active Expired - Fee Related
- 2004-09-29 BR BRPI0414923-8A patent/BRPI0414923A/pt not_active IP Right Cessation
- 2004-09-29 JP JP2005514245A patent/JP4198156B2/ja not_active Expired - Fee Related
- 2004-09-29 EP EP04788290.7A patent/EP1669673B1/en not_active Expired - Lifetime
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JPS6245552U (ja) * | 1985-09-09 | 1987-03-19 | ||
JPS6434771U (ja) * | 1987-08-26 | 1989-03-02 | ||
JPH01139917A (ja) * | 1987-11-26 | 1989-06-01 | Matsushita Electric Ind Co Ltd | ガス燃焼機器用熱電対装置 |
JPH0614742U (ja) * | 1992-07-14 | 1994-02-25 | パロマ工業株式会社 | 熱電対 |
JPH09184779A (ja) * | 1995-12-28 | 1997-07-15 | Matsushita Electric Works Ltd | 圧力センサ |
JP2000018591A (ja) * | 1998-07-03 | 2000-01-18 | Mikuni Adec Corp | ガス器具の安全装置 |
JP2000260521A (ja) * | 1999-03-09 | 2000-09-22 | Yazaki Corp | コネクタ |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007032659A (ja) * | 2005-07-26 | 2007-02-08 | Rinnai Corp | 電磁安全弁 |
JP4519026B2 (ja) * | 2005-07-26 | 2010-08-04 | リンナイ株式会社 | 電磁安全弁 |
CN105004442A (zh) * | 2015-05-11 | 2015-10-28 | 奥可利电子(昆山)有限公司 | 一种热电偶连接塑件 |
Also Published As
Publication number | Publication date |
---|---|
EP1669673A1 (en) | 2006-06-14 |
BRPI0414923A (pt) | 2006-11-07 |
JPWO2005031213A1 (ja) | 2008-06-12 |
EP1669673B1 (en) | 2016-06-22 |
EP1669673A4 (en) | 2012-02-01 |
JP4198156B2 (ja) | 2008-12-17 |
CN1860332A (zh) | 2006-11-08 |
CN100526718C (zh) | 2009-08-12 |
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