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WO2003063660A1 - Regulateur de temperature pour thermoplongeur - Google Patents

Regulateur de temperature pour thermoplongeur Download PDF

Info

Publication number
WO2003063660A1
WO2003063660A1 PCT/CN2002/000294 CN0200294W WO03063660A1 WO 2003063660 A1 WO2003063660 A1 WO 2003063660A1 CN 0200294 W CN0200294 W CN 0200294W WO 03063660 A1 WO03063660 A1 WO 03063660A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
heating element
contact piece
electric heating
thermostat
Prior art date
Application number
PCT/CN2002/000294
Other languages
English (en)
Chinese (zh)
Inventor
Wengao Liu
Original Assignee
Liu, Xinhao
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 Liu, Xinhao filed Critical Liu, Xinhao
Publication of WO2003063660A1 publication Critical patent/WO2003063660A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/002—Thermally-actuated switches combined with protective means

Definitions

  • the invention relates to a safety device for a liquid electric heater, and in particular to a temperature controller for a liquid electric heater. Background technique
  • Liquid electric heaters are commonly used in electric heating vessels such as electric kettles, electric coffee pots, and electric cups.
  • a device which can automatically power off when the liquid-free dry burning is provided is provided therein.
  • the safety device that is, the temperature controller, uses a bimetal sheet as a temperature sensing element, and disconnects the dynamic and static contacts connected in series to the electric heating circuit through a linkage mechanism connected to the bimetal sheet, thereby powering off the electric heating element. Since the dynamic and static contact pieces may fail and cannot be disconnected after long-term use or under certain circumstances, it is necessary to set up a backup protection mechanism to disconnect the electric circuit of the electric heating element in another way.
  • the British patent GB2181598 discloses a temperature controller with a backup protection mechanism, which includes a heat-sensitive action mechanism which is in thermal contact with the electric heating element and is connected with the contact piece pair as a control switch.
  • the thermal action mechanism separates the contact piece pairs, thereby de-energizing the electric heating element; it also includes a backup protection mechanism, including a pre-compressed spring, and one end of which is connected to the switch contact piece through an operating member Pair or another set of switch contact pairs are connected.
  • a fusible ejector pin against the other end of the spring to maintain it in a compressed state, and the other end of the fusible ejector pin is extended.
  • the technical problem to be solved by the present invention is to provide a temperature controller with a simpler structure and more convenient assembly in view of the current state of the prior art.
  • the temperature controller for a liquid electric heater includes a housing and a disposable protection mechanism provided therein, and the disposable protection mechanism includes: An fusible top rod, the outer end of which is extended out of the housing and is in thermal contact with the electric heating element during installation, is characterized by further comprising a contact piece pair connected in series to the electric heating element's current circuit, wherein the moving contact piece
  • the elastic element has a tendency to be away from the stationary contact piece opposite to it in the natural state, and the other end of the fusible ejector rod is abutted against the movable contact piece, forcing it to contact the stationary contact piece.
  • the temperature controller may also be provided with a conventional reusable thermal action mechanism, which is in thermal contact with the electric heating element, and is connected with the contact piece pair as a control switch.
  • a conventional reusable thermal action mechanism which is in thermal contact with the electric heating element, and is connected with the contact piece pair as a control switch.
  • the thermal sensor When the electric heating element is overheated, the thermal sensor The action mechanism separates the contact piece pairs, thereby de-energizing the electric heating element.
  • the one-time protection mechanism is used as a backup protection mechanism.
  • the contact piece pair in the heat-sensitive action mechanism may be the contact piece pair in the disposable protection mechanism, or may be another contact piece pair.
  • the present invention cleverly uses the moving contact piece itself as a pre-deformation device, thereby eliminating the pre-tensioning spring and its operating parts required in the prior art, so the structure is simpler and the assembly is more convenient.
  • FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along A_A of FIG. 1 in a normal state.
  • Figure 3 is a cross-sectional view of AA when the fusible ejector rod is melted by heat. detailed description
  • the thermostat for a liquid electric heater includes a housing, a thermal-sensitive operating mechanism and a backup secondary protection mechanism provided therein;
  • the casing includes a front casing 1 and a rear casing 2 made of a flame-resistant material, which are fixed to each other by screws, and are connected to the heater 5 by screws during installation;
  • the thermal action mechanism includes a N-pole static contact piece 9, a N-pole moving contact piece 10, a bimetallic piece 3 and a top rod (not shown), and the N-pole static contact piece 9 is riveted on the N pole of the plug pin 8.
  • the bimetallic piece 3 is fixed on the shell cover, and the outer end surface of the bimetallic piece 3 is in contact with the electric heating element 5.
  • the bimetallic piece 3 is deformed and the N pole moving contact piece 10 is pushed apart by the ejector rod, so that the N pole moving The contact sheet 10 and the N-pole static contact sheet 9 are separated;
  • the backup disposable protection mechanism includes L pole static contact piece 7, L pole movable contact piece 6, and fusible ejector pin 4.
  • L pole static contact piece 7 is riveted to L pole of plug pin 8
  • L pole movable contact piece 6 is a Elastic element, and in a natural state has a tendency to move away from the static contact piece opposite to it, see FIG. 3; the fusible ejector rod slides behind In the corresponding hole of the housing 2, its outer end protrudes out of the housing, and abuts against the electric heating element 5 during installation. Its inner end is against the L pole moving contact piece 6, forcing it to contact the L pole static contact piece. 7 contacts.
  • the electric heating element 5 When the electric heating element 5 is dry-burned and the thermal action mechanism fails, the electric heating element 5 will be severely overheated. At this time, the outer end of the fusible ejector pin 4 will be melted. Due to the elastic effect of the L pole contact, the fusible ejector pin 4 is pushed outward, thereby releasing the restriction on the L pole moving contact piece 6, and the L pole moving contact piece is separated from the L pole static contact piece 7 under the action of the elastic force, so that the current-carrying circuit of the electric heating element 5 is disconnected.

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

L'invention concerne un régulateur de température pour thermoplongeur, qui comprend une enveloppe et un moyen de protection unique qui est pourvu d'un poussoir fusible, une extrémité de ce poussoir faisant saillie à l'extérieur de l'enveloppe et étant en contact avec le thermoplongeur. Ce moyen de protection unique comporte en outre une paire de contacts montés en série dans un circuit de thermoplongeur, dont le contact actif est un élément élastique et est séparé du contact statique correspondant en position normale, l'autre extrémité du poussoir venant en butée contre ce contact actif et le maintenant en contact statique. Le régulateur de température comprend également un moyen d'actionnement thermosensible qui peut être utilisé de façon répétée, le moyen de protection unique étant dans ce cas un moyen de secours. Si l'on compare avec l'art antérieur, selon l'invention, on utilise le contact actif lui-même en tant qu'élément préchargé, ce qui permet de ne pas utiliser le ressort et son actionneur de l'art antérieur et rend donc la structure plus simple et le montage plus facile.
PCT/CN2002/000294 2002-01-29 2002-04-26 Regulateur de temperature pour thermoplongeur WO2003063660A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 02110702 CN1374490A (zh) 2002-01-29 2002-01-29 一种用于液体电热器的温控器
CN02110702.5 2002-01-29

Publications (1)

Publication Number Publication Date
WO2003063660A1 true WO2003063660A1 (fr) 2003-08-07

Family

ID=4741206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000294 WO2003063660A1 (fr) 2002-01-29 2002-04-26 Regulateur de temperature pour thermoplongeur

Country Status (2)

Country Link
CN (1) CN1374490A (fr)
WO (1) WO2003063660A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10512431B2 (en) 2014-12-02 2019-12-24 Agency For Science, Technology Ano Research Sensor patch and sensing device having the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100532996C (zh) * 2007-05-21 2009-08-26 宁波好伙伴电器有限公司 一种热敏感应控制器及相应的电热水器
CN103632901A (zh) * 2012-08-28 2014-03-12 宁波家尚电器有限公司 熔断式干烧保护器
CN104797014B (zh) * 2015-04-30 2016-06-22 佛山市川东磁电股份有限公司 一种集成传感器
CN104779118B (zh) * 2015-04-30 2017-03-15 佛山市川东磁电股份有限公司 一种熔断保护结构
CN106653478B (zh) * 2017-02-22 2018-08-17 佛山市川东磁电股份有限公司 一种兼容型温控器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1479364A (en) * 1973-08-04 1977-07-13 Thermostat & Schaltgeraetebau Electrical temperature regulator
GB2027995A (en) * 1978-06-15 1980-02-27 Inter Control Koehler Hermann Temperature-responsive cut-out employing fusible material
GB2181598A (en) * 1985-10-04 1987-04-23 Strix Ltd Thermally-sensitive controls
CN2047449U (zh) * 1989-02-02 1989-11-08 南京太平专利技术实验工厂 有机化合物型超温熔断器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1479364A (en) * 1973-08-04 1977-07-13 Thermostat & Schaltgeraetebau Electrical temperature regulator
GB2027995A (en) * 1978-06-15 1980-02-27 Inter Control Koehler Hermann Temperature-responsive cut-out employing fusible material
GB2181598A (en) * 1985-10-04 1987-04-23 Strix Ltd Thermally-sensitive controls
CN2047449U (zh) * 1989-02-02 1989-11-08 南京太平专利技术实验工厂 有机化合物型超温熔断器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10512431B2 (en) 2014-12-02 2019-12-24 Agency For Science, Technology Ano Research Sensor patch and sensing device having the same

Also Published As

Publication number Publication date
CN1374490A (zh) 2002-10-16

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