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WO2017072818A1 - Chauffage de gaine, et dispositif d'essai de charge - Google Patents

Chauffage de gaine, et dispositif d'essai de charge Download PDF

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Publication number
WO2017072818A1
WO2017072818A1 PCT/JP2015/005469 JP2015005469W WO2017072818A1 WO 2017072818 A1 WO2017072818 A1 WO 2017072818A1 JP 2015005469 W JP2015005469 W JP 2015005469W WO 2017072818 A1 WO2017072818 A1 WO 2017072818A1
Authority
WO
WIPO (PCT)
Prior art keywords
shape
end portion
cross
sectional shape
cylindrical portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/005469
Other languages
English (en)
Japanese (ja)
Inventor
豊嗣 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tatsumi Ryoki Co Ltd
Original Assignee
Tatsumi Ryoki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tatsumi Ryoki Co Ltd filed Critical Tatsumi Ryoki Co Ltd
Priority to PCT/JP2015/005469 priority Critical patent/WO2017072818A1/fr
Priority to HK18106543.9A priority patent/HK1247509A1/zh
Priority to CN201580082796.2A priority patent/CN107926082A/zh
Priority to PCT/JP2015/005582 priority patent/WO2017072823A1/fr
Priority to JP2016522835A priority patent/JP5959136B1/ja
Priority to TW105134658A priority patent/TWI595246B/zh
Publication of WO2017072818A1 publication Critical patent/WO2017072818A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details

Definitions

  • the present invention relates to a sheathed heater and a load test apparatus including the sheathed heater.
  • Patent Document 1 a sheathed heater used in a load test apparatus or the like has been proposed.
  • the heater terminal of the sheathed heater is usually formed in a substantially cylindrical shape including the male screw part, if the nut is tightened too much, the male screw part may rotate and the connection state between the heater terminal and the resistance wire may be broken. is there.
  • an object of the present invention is to provide a sheathed heater or the like that can easily maintain a connection state between a heater terminal and a resistance wire.
  • the sheathed heater according to the present invention includes a cylindrical portion, a resistance wire disposed inside the cylindrical portion, heater terminals connected to both ends of the resistance wire, and insulating powder filled inside the cylindrical portion,
  • the heater terminal has a male screw shape for screwing with a nut and a first end portion that is partially exposed from the cylindrical portion, a second end portion that has a columnar shape and a portion of the resistance wire is wound thereon,
  • An intermediate portion sandwiched between the first end portion and the second end portion, the first end portion, the intermediate portion, and the second end portion are integrally configured, and the intermediate portion has a shape other than a circular cross section.
  • the middle part of the heater terminal is provided with a part with a shape different from the cylindrical shape, the insulating powder filled around the part serves as a detent, and the nut is turned too much when screwing with the nut.
  • the heater terminal it becomes difficult for the heater terminal to rotate, and it becomes possible to prevent the resistance wire and the heater terminal from being disconnected (to easily maintain the connection state between the heater terminal and the resistance wire).
  • the heater terminal is difficult to rotate, there is an advantage that the user can easily recognize whether or not the nut is turned too much.
  • the intermediate portion includes a portion whose cross section has a shape other than a circle, and the portion whose cross section has a shape other than a circle has a polygonal column shape, and has a polygonal cross section. All the line segments from the center of gravity to the side forming the outer shape of the polygonal cross section are longer than the radius of the circle forming the cross section of the second end.
  • a portion corresponding to the first end portion and the second end portion is cut out from a columnar object having the same cross-sectional shape as that of the polygonal column shape and having a height longer than the polygonal column shape.
  • a heater terminal is formed.
  • the intermediate part includes a part having a shape other than circular in cross section, and the intermediate part has a cylindrical part having a diameter larger than that of the first end part and the second end part,
  • the portion having a cross-sectional shape other than circular is formed by deforming a part of the cylindrical portion.
  • the portion having a cross-sectional shape other than circular has a polygonal column shape.
  • the portion having a shape other than circular in cross section has a shape in which a part of the cylindrical portion is crushed.
  • the intermediate portion includes a portion having a cross-sectional shape in which the center of gravity is located at a position away from the extension line of the central axis of the first end portion and the second end portion.
  • the cylindrical portion holds the first end of the heater terminal via a first insulating member fitted in the opening, and a portion of the insulating powder facing the first insulating member is caulked. Is given.
  • a sheathed heater according to the present invention includes a cylindrical portion, a resistance wire disposed inside the cylindrical portion, heater terminals connected to both ends of the resistance wire, and insulating powder filled inside the cylindrical portion.
  • a plurality of heaters are provided, and the plurality of sheathed heaters are used as resistors for the dry load test, and the heater terminal has a first end portion having a male screw shape and a part thereof exposed from the cylindrical portion, and a columnar shape.
  • a second end portion around which a part of the resistance wire is wound, and an intermediate portion sandwiched between the first end portion and the second end portion, and the first end portion, the intermediate portion, and the second end portion are integrated.
  • the intermediate portion includes at least one of a portion having a cross-sectional shape other than a circular shape and a portion having a cross-sectional shape in which the center of gravity is located at a position away from the extension line of the central axis of the first end portion. .
  • the dry load test apparatus 1 in the present embodiment includes a frame 10, a resistance unit 20, a cooling unit 30, and a connection switching unit 40 (see FIGS. 1 to 11 and FIGS. 14 to 18).
  • the horizontal direction in which the connection switching unit 40 and the frame 10 are arranged is the x direction
  • the horizontal direction perpendicular to the x direction is the y direction
  • the vertical direction perpendicular to the x direction and the y direction is the z direction.
  • the frame 10 houses the resistance unit 20 in the upper stage and the cooling unit 30 in the lower stage. Further, a connection switching unit 40 is provided on the side of the frame 10, and a caster is provided on the lower part.
  • the side surface of the frame 10 (the surface where the heater terminal 63 of the resistor R constituting the resistor unit 20 can be seen) is the heater terminal 63, a cable connected to the heater terminal 63, a short-circuit bar, and a frame 21 that holds the resistor R. Is provided with a cover 11 (see FIG. 2).
  • the cover 11 is made of a conductive material such as iron or aluminum.
  • the resistor section 20 is a terminal connection section 43 in which a plurality of resistor arrays in which a plurality of rod-shaped resistors R parallel to the y direction are arranged at predetermined intervals in the x direction are arranged in a plurality of stages in the z direction. It is used to perform a load test of a power source to be tested such as a generator connected via the. The resistor R is supplied with power from the power source to be tested.
  • the resistor R includes nine resistor rows arranged in the x direction and arranged in 13 stages in the z direction.
  • the number of resistors R arranged in each resistor row and the number of stages where the resistor rows are stacked are not limited to this.
  • the resistor R in at least one resistor row (the uppermost resistor row in the examples shown in FIGS. 4 and 5) is used for spare purposes such as replacement when another resistor R fails. It is desirable that the resistor R constituting the resistor row of the second stage is used as the resistor R constituting the first resistor group G1 to the twelfth resistor group G12.
  • the 6 or 12 resistors R adjacent to each other are set as one resistor group, and the load is applied while changing the number of resistor groups to which a voltage is applied from the power source to be tested. Perform the test.
  • connection within the resistor group (the connection state of the resistor R within the resistor group) is changed according to the type of power supply subject to the load test.
  • the resistance unit 20 includes a first resistor group G1 to a twelfth resistor group G12.
  • a first resistor group G1 (rated capacity: 1 kW) having six resistors R having a rated voltage of 400 V and a rated capacity of 1.67 kW, a resistor R having a rated voltage of 116 V and a rated capacity of 334 W
  • Second resistor group G2 (rated capacity: 2 kW, third resistor group G3 is the same)
  • the resistor (seeds heater) R includes a coiled resistance wire 61 such as a nichrome wire, a heater terminal (bobbin) 63 electrically connected to the resistance wire 61 and provided at both ends of the resistance wire 61, and a first insulating member 65a. And a cylindrical portion (heater pipe) 67 that holds the heater terminal 63 and covers the side surface of the resistance wire 61 and a part of the heater terminal 63 (a portion that is not exposed to the outside from the wall constituting the frame 21) (FIGS. 6 to 5). 8).
  • FIGS. 12 and 14 to 18 show cross sections of members other than the resistance wire 61, the heater terminal 63, and the nut 66, and the resistance wire 61, the heater terminal 63, and the nut 66. Indicates the side.
  • a heat dissipating fin 69 is provided on the side surface of the cylindrical portion 67.
  • the heater terminal 63 has a male thread shape for screwing with the nut 66, a first end portion 63 a partially exposed from the cylindrical portion 67, a substantially columnar shape, and a part of the resistance wire 61 is wound around the first end portion 63 a.
  • 2 end part 63b it has the intermediate part 63c pinched
  • the intermediate part 63c has the same central axis as the central axis LX of the first end part 63a and the second end part 63b, and has a substantially cylindrical part 63c1 having a diameter larger than that of the first end part 63a and the second end part 63b. And a portion 63c2 having a cross-sectional shape other than circular.
  • a portion 63c2 having a shape other than a circular cross section in the intermediate portion 63c is obtained by cutting out portions corresponding to the first end portion 63a and the second end portion 63b from a columnar object (column) having a circular cross section.
  • the heater terminal 63 is formed in a state before the portion 63c3 having a cross-sectional shape with the center of gravity located at a position away from an extension line of the center axis LX described later.
  • the portion 63 c 2 having a shape other than a circular cross section has a substantially polygonal column shape in which a part of the substantially cylindrical portion 63 c 1 is formed by pressing or the like (the cross section is a polygon).
  • the cross section is a polygon.
  • FIG. 9 a configuration in which a part of the substantially cylindrical portion 63c1 is crushed by pressing or the like (the cross section is substantially oval or the like) is conceivable.
  • the shape other than the circle is a polygon, and all the line segments from the center of gravity of the polygon to the side forming the outer shape of the shape are cross sections of the second end portion 63b and the substantially cylindrical portion 63c1.
  • a shape other than the circle may be formed so as to be longer than the radius of the circle to be formed (see FIG. 10).
  • the entire heater terminal 63 including the upper and lower substantially cylindrical portion 63c1 and the portion 63c2 having a cross-sectional shape other than circular is formed by cutting out from a columnar object (polygonal column) having a polygonal cross section. I can do it.
  • the heater terminal 63 has the same cross-sectional shape as that of the polygonal column shape, and has a height (the height of the first end portion 63a, the second end portion 63b, and the intermediate portion 63c) longer than the polygonal column shape.
  • a portion corresponding to the columnar portion 63c1 of the first end portion 63a, the second end portion 63b, and the intermediate portion 63c is cut out from the columnar object, so that the heater terminal 63 is formed.
  • a portion corresponding to the columnar portion 63c1 of the first end portion 63a, the second end portion 63b, and the intermediate portion 63c is cut out from a regular hexagonal column member, a portion 63c2 having a shape other than circular in cross section is obtained.
  • a heater terminal 63 having a regular hexagonal column shape can be obtained.
  • the intermediate portion 63c is formed by bending a part of the substantially cylindrical portion 63c1, and the first end portion 63a and the second end portion 63a.
  • a form including a portion 63c3 having a cross-sectional shape in which the center of gravity is located at a position away from the extension line of the central axis LX of the end 63b may be used (see FIG. 11).
  • a part of the resistance wire 61 is wound around the second end 63b and fixed by spot welding or the like.
  • the inside of the cylindrical portion 67 is filled with an insulating powder 64 such as magnesia and is hardened by compression and heat.
  • the portion facing the first insulating member 65a in the insulating powder 64 (the boundary portion between the insulating powder 64 and the first insulating member 65a) is subjected to coking 62 with silicone or the like.
  • the nut 66 is screwed into the first end 63a with the first insulating member 65a and the cylindrical portion 67 sandwiched therebetween.
  • the nut 66 is screwed. In addition, if the nut 66 is turned too much, the heater terminal 63 slides and rotates, and the connection state between the resistance wire 61 and the heater terminal 63 may be broken.
  • the intermediate portion 63c of the heater terminal 63 has a portion 63c2 having a shape other than a circular cross section, such as a polygonal column shape, or an extension of the central axis LX of the first end portion 63a and the second end portion 63b. Since a portion 63c3 having a cross-sectional shape in which the center of gravity is located at a position away from the line, that is, a portion having a shape different from the substantially cylindrical shape is provided, the insulating powder 64 filled around the portion serves as a detent.
  • the heater terminal 63 is difficult to rotate and prevents the resistance wire 61 and the heater terminal 63 from being disconnected (the connection state of the heater terminal 63 and the resistance wire 61). Can be easily maintained).
  • a terminal 63 can be formed.
  • the heater terminal 63 of the resistor R is connected to the heater terminal 63 of another resistor R by a short-circuit bar, or is connected to the terminal connection portion 43 or a relay via a cable.
  • the side of the resistor R is covered with a frame 21 composed of four walls.
  • a portion of the resistor R that is not electrically connected to the heater terminal 63 (such as the vicinity of both ends of the cylindrical portion 67 that holds the heater terminal 63 via the first insulating member 65a) is connected to the frame 21 via the second insulating member 65b. It is held on the wall that constitutes it.
  • FIG. 6 shows the ends of the four resistors R held by the frame 21, and two of them are shown in which the heater terminals 63 are connected to each other via a short-circuit bar.
  • the upper surface and the lower surface of the frame 21 are opened in order to allow the cool air from the cooling unit 30 provided in the lower part to flow upward.
  • the resistor array adjacent in the z direction is positioned at a middle position between the resistor R constituting the resistor array and the resistor R adjacent to the resistor R in the x direction.
  • the resistors R of each resistor row are arranged so that the resistors R are arranged.
  • a cooling unit 30 having a cooling fan is provided below the resistance unit 20 (lower stage of the frame 10).
  • the relay provided for each resistor group in the cooling unit 30 or the resistor unit 20 and controlling the power supply from the test target power source to any one of the resistor groups is a power source (load test device drive) different from the test target power source. (Refer to FIG. 3).
  • the connection switching unit 40 includes an operation unit 41 and a terminal connection unit 43 (see FIGS. 2 and 3).
  • the terminal connection unit 43 may be arranged at a position away from the operation unit 41 (for example, the back surface of the operation unit 41).
  • the operation unit 41 includes a mode switch 41a and a resistance switch 41b.
  • the mode changeover switch 41a is a rotary operation switch and is used to turn on / off the load test apparatus 1 and to select the type of power source to be tested (mode changeover).
  • the resistance changeover switch 41b is a slide type (or toggle type or push button type) operation switch, and is a switch for performing on / off control of each relay of the first resistor group G1 to the twelfth resistor group G12.
  • first operation switch S1 When the first operation switch S1 is turned on, the relay of the first resistor group G1 is turned on (conducting state), and the first resistor group G1 is connected to the load test apparatus 1 via the terminal connection portion 43. The current from the connected power source to be tested can be made to flow.
  • the cooling fan of the cooling unit 30 is driven, and the first is based on the operating state of the resistance switch 41b. On / off control of the relays of each of the resistor group G1 to the twelfth resistor group G12 is performed.
  • the terminal connection unit 43 is a terminal for connecting a power supply to be tested, and the test target power supply and the first resistor group G1 to the twelfth resistor group G12 can be connected via the terminal connection unit 43. Is done.
  • a resistance wire 61 attached between the two heater terminals 63 is inserted into the cylindrical portion 67, held so that the opening in the cylindrical portion 67 faces the vertical direction, and the lower opening is closed with a rubber bushing 68.
  • the insulating powder 64 is introduced into the cylindrical portion 67 (see FIG. 14, filling process).
  • the sufficiently dried insulating powder 64 is put in a state where vibration is applied to the cylindrical portion 67 and the like.
  • a diameter reducing process for compressing the side surface of the cylindrical portion 67 is performed in a state where the upper opening in the cylindrical portion 67 is closed with a rubber-like bushing 68 (see FIG. 15, the diameter reducing step). ).
  • the insulating powder 64 is solidified into a sintered body by the diameter reduction process and the heating process.
  • a portion of the insulating powder 64 exposed in the vicinity of the opening of the cylindrical portion 67 (a portion facing the bushing 68) is subjected to a caulking 62 with silicone or the like, and then the first insulating member 65a is fitted ( (See FIG. 17, inset process). Further, the heat radiation fin 69 is attached to the cylindrical portion 67.
  • the nut 66 is screwed into the first end portion 63a, and the first insulating member 65a and the cylindrical portion 67 are sandwiched between the nuts 66 to complete the resistor R (see FIG. 18, screwing step). .
  • a form in which a resistor (seeds heater) R having a heater terminal 63 provided with a portion having a shape different from a substantially cylindrical shape is used in the dry load test apparatus 1 for a part of the intermediate portion 63c.
  • the use of the sheathed heater is not limited to the dry load test apparatus, but may be a form used for other purposes such as an electric heating apparatus.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention fournit un chauffage de gaine, ou similaire, tel qu'un état de connexion entre une borne de chauffage et un fil de résistance est facilement maintenu. Le chauffage de gaine (résistance (R)) est équipé d'une partie cylindrique (67), du fil de résistance (61) disposé dans la partie interne de la partie cylindrique (67), d'une borne de chauffage (63) connectée aux deux extrémités du fil de résistance (61), et d'une poudre isolante (64) remplissant la partie interne de la partie cylindrique (67). La borne de chauffage (63) est configurée d'un seul tenant par une première partie extrémité (63a) qui possède une forme de vis mâle afin de se visser avec un écrou (66), et dont une partie est exposée par la partie cylindrique (67), une seconde partie extrémité (63b) qui possède une forme de colonne, et sur laquelle est enroulée une partie du fil de résistance, et une partie intermédiaire (63c) enserrée entre première et la seconde partie extrémité (63a, 63b). La partie intermédiaire (63c) contient une portion dont le plan transversal présente une forme autre que ronde.
PCT/JP2015/005469 2015-10-30 2015-10-30 Chauffage de gaine, et dispositif d'essai de charge Ceased WO2017072818A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2015/005469 WO2017072818A1 (fr) 2015-10-30 2015-10-30 Chauffage de gaine, et dispositif d'essai de charge
HK18106543.9A HK1247509A1 (zh) 2015-10-30 2015-11-09 护套加热器和负载试验装置
CN201580082796.2A CN107926082A (zh) 2015-10-30 2015-11-09 护套加热器和负载试验装置
PCT/JP2015/005582 WO2017072823A1 (fr) 2015-10-30 2015-11-09 Chauffage de gaine, et dispositif d'essai de charge
JP2016522835A JP5959136B1 (ja) 2015-10-30 2015-11-09 シーズヒーター、負荷試験装置
TW105134658A TWI595246B (zh) 2015-10-30 2016-10-27 護套加熱器及負載測試裝置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/005469 WO2017072818A1 (fr) 2015-10-30 2015-10-30 Chauffage de gaine, et dispositif d'essai de charge

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Publication Number Publication Date
WO2017072818A1 true WO2017072818A1 (fr) 2017-05-04

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PCT/JP2015/005469 Ceased WO2017072818A1 (fr) 2015-10-30 2015-10-30 Chauffage de gaine, et dispositif d'essai de charge
PCT/JP2015/005582 Ceased WO2017072823A1 (fr) 2015-10-30 2015-11-09 Chauffage de gaine, et dispositif d'essai de charge

Family Applications After (1)

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PCT/JP2015/005582 Ceased WO2017072823A1 (fr) 2015-10-30 2015-11-09 Chauffage de gaine, et dispositif d'essai de charge

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CN (1) CN107926082A (fr)
HK (1) HK1247509A1 (fr)
TW (1) TWI595246B (fr)
WO (2) WO2017072818A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3855194A4 (fr) * 2018-09-18 2022-06-15 Tatsumi Ryoki Co., Ltd Résistance de charge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118151000A (zh) * 2018-03-13 2024-06-07 株式会社辰巳菱机 负载试验装置及其电阻单元
WO2019175953A1 (fr) 2018-03-13 2019-09-19 株式会社辰巳菱機 Dispositif d'épreuve de tolérance
CN109156902B (zh) * 2018-11-08 2024-01-09 广东精彩国际生物科技有限公司 一种加热元件以及设有该加热元件的电子烟具

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2010025752A (ja) * 2008-07-18 2010-02-04 Tatsumi Ryoki:Kk 乾式負荷試験装置

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JP2000145742A (ja) * 1998-11-16 2000-05-26 Tadashi Iwata 付き回り防止雄ねじ部材
CN201134938Y (zh) * 2007-12-26 2008-10-15 广西玉柴机器股份有限公司 新型电热管
CN201491300U (zh) * 2009-08-21 2010-05-26 江山热威金属制造有限公司 电加热管引出棒的防松动结构
JP5395316B1 (ja) * 2013-05-30 2014-01-22 株式会社辰巳菱機 負荷試験装置
JP5497234B1 (ja) * 2013-08-20 2014-05-21 株式会社辰巳菱機 負荷試験装置
JP5551324B1 (ja) * 2013-11-20 2014-07-16 株式会社辰巳菱機 負荷試験装置

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2010025752A (ja) * 2008-07-18 2010-02-04 Tatsumi Ryoki:Kk 乾式負荷試験装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3855194A4 (fr) * 2018-09-18 2022-06-15 Tatsumi Ryoki Co., Ltd Résistance de charge

Also Published As

Publication number Publication date
CN107926082A (zh) 2018-04-17
WO2017072823A1 (fr) 2017-05-04
TWI595246B (zh) 2017-08-11
HK1247509A1 (zh) 2018-09-21
TW201727247A (zh) 2017-08-01

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