GB2064884A - Electrical contact device - Google Patents

Electrical contact device Download PDF

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Publication number
GB2064884A
GB2064884A GB7941828A GB7941828A GB2064884A GB 2064884 A GB2064884 A GB 2064884A GB 7941828 A GB7941828 A GB 7941828A GB 7941828 A GB7941828 A GB 7941828A GB 2064884 A GB2064884 A GB 2064884A
Authority
GB
United Kingdom
Prior art keywords
contactors
spring
support
main
compression
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.)
Granted
Application number
GB7941828A
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GB2064884B (en
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to GB7941828A priority Critical patent/GB2064884B/en
Publication of GB2064884A publication Critical patent/GB2064884A/en
Application granted granted Critical
Publication of GB2064884B publication Critical patent/GB2064884B/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure

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  • Measuring Leads Or Probes (AREA)

Abstract

A spring 2 is held between a pair of contactors 1 which are arranged to engage a conductor 8, and a support 9 is fitted around the spring between said contactors. The gap between said contactors 1 is thereby slightly opened against the action of the spring 2 whereby the contactors 1 are appropriately positioned even though the conductor is not inserted. <IMAGE>

Description

SPECIFICATION Contact device BACKGROUND OF THE INVENTION Field of the invention The present invention relates to a main contact device for electrically connecting a breaker to a main circuit.
Description of the prior arts Heretofore, it has been known to use such main contact devices shown in Figures 1 to 3. In Figure 1, the reference numeral (1) designates contactors which form one set with four contactors as shown in Figure 3; (2) designates a compression coil spring held between the contactors (1); (3) designates a T-shape spring hook which is inserted inside of the compression coil spring (2) from both sides and is held by a lock pin (4) so as to form a pair of the contactors (1) and the spring hook (3); (5) designates a holder which is fitted into the contactors (1) set in the one pair so as to assemble the parts as shown in Figure 3. The reference numeral (6) designates a pin inserted between the contactors (1) and the holder (5) so as to arrange the contacts as desired.The reference numeral (7) designates a terminal for connecting the contactors (1); and (8) designates a conductor for connecting it by the contactors (1).
When the conductor (8) is inserted into the main contactors (1) set as described above, the contactors (1 ) is opened at the center of the contacting parts with the terminal (7) whereby the spring hook (3) is actuated to the direction compressing the compression coil spring (2) through the lock pin (4) fitting to the contactors (1). Thus, when the conductor (8) is inserted into the main contactor, the contacting pressure is applied to the contactors (1) by the spring force of the compression coil spring (2). However, when the conductor (8) is not inserted, only spring hook (3) is opened by the compression coil spring (2). The spring force is not applied to the contactors (1), whereby the contactors (1) can not be held at the coaxial position to the terminal (7) without any support.Thus, the holder (5) is required and the compression coil spring (2) should be compressed so as to impart the effect the same as the effect inserting the conductor (8) by the holder (5).
However, in the holders having said structure, many kinds of the holders are needed depending upon the number of the main contactors and accordingly, it is expensive.
Summary of the invention In accordance with the present invention, there is provided independent main contactors which respectively have the force for holding each terminal.
The present invention is to provide a contact device which comprises a compression spring hooked between a pair of the contactors for holding a conductor; and a support for slightly opening a gap between both contactors by overcoming to the compression force of the compression spring whereby it is economical as a main contactor unit and can vary numbers of the main contactors. This is highly advantageous to use it in the practical purpose.
Brief description of the drawings Figure lisa plan view of the conventional main contactor; Figure 2 is a schematic view of a conventional holder; Figure 3 is a schematic view of a conventional assembled contactors; Figure 4 is a plan view of one embodiment of the contactor device of the present invention; Figures 5, 6 and 7 are respectively schematic views of embodiments of a support used in the present invention; and Figure 8 is a schematic view of one embodiment of assembled contactors of the present invention.
Detailed description of the preferred embodiments The present invention is to overcome the disadvantages of the conventional device. The main contactors are independently arranged to have each force for holding each terminal.
Referring to the drawings, one embodiment of the present invention will be illustrated.
In Figure 4, the support (9) is fitted to the outer part of each compression coil spring (2) of each main contactor and the main contactors (1) are assembled. The support (9) is brought into contact with the contactors (1).
The support (9) holds the contactors (1) under opening a gap of the contactors 1 so as to apply the spring force to the spring hook (3) by the compression coil spring (2). The size of the support (9) is set so that the size of the fitting part at the terminal side of the main contactors is smaller than the size of the terminal (7). When the main contactor having said structure is fitted to the terminal (7), the spring force of the compression coil spring (2) is applied to the contactors (1) by the terminal (7) and the support (9).
Therefore, the main contactor is held to be coaxial to the terminal (7) so as to independently fit each main contactor to the terminal as shown in Figure 8 even through the spring force of the compression coil spring (2) is applied through the terminal (7) and the support (9) to the contactors (1) and the conductor (8) is not inserted.
In the above-mentioned embodiment, a cylindrical tube type support (9) as shown in Figure 5 is used.
Thus, the same effect can be imparted by inserting the support which is shaped by a sheet metal press working as shown in Figures 6 or 7 when the support is inserted so as to hold under slight deviation of the compression coil spring.
1. A contact device which comprises a compression spring held between a pair of contactors which holds a conductor; and a support which is fitted between both said contactors so as to slightly open a gap between both said contactors by overcoming to the compression force of said compression spring.
2. A contact device according to Claim 1 wherein said support is a cylindrical tube which is fitted so as to surround said compression spring.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Contact device BACKGROUND OF THE INVENTION Field of the invention The present invention relates to a main contact device for electrically connecting a breaker to a main circuit. Description of the prior arts Heretofore, it has been known to use such main contact devices shown in Figures 1 to 3. In Figure 1, the reference numeral (1) designates contactors which form one set with four contactors as shown in Figure 3; (2) designates a compression coil spring held between the contactors (1); (3) designates a T-shape spring hook which is inserted inside of the compression coil spring (2) from both sides and is held by a lock pin (4) so as to form a pair of the contactors (1) and the spring hook (3); (5) designates a holder which is fitted into the contactors (1) set in the one pair so as to assemble the parts as shown in Figure 3. The reference numeral (6) designates a pin inserted between the contactors (1) and the holder (5) so as to arrange the contacts as desired.The reference numeral (7) designates a terminal for connecting the contactors (1); and (8) designates a conductor for connecting it by the contactors (1). When the conductor (8) is inserted into the main contactors (1) set as described above, the contactors (1 ) is opened at the center of the contacting parts with the terminal (7) whereby the spring hook (3) is actuated to the direction compressing the compression coil spring (2) through the lock pin (4) fitting to the contactors (1). Thus, when the conductor (8) is inserted into the main contactor, the contacting pressure is applied to the contactors (1) by the spring force of the compression coil spring (2). However, when the conductor (8) is not inserted, only spring hook (3) is opened by the compression coil spring (2). The spring force is not applied to the contactors (1), whereby the contactors (1) can not be held at the coaxial position to the terminal (7) without any support.Thus, the holder (5) is required and the compression coil spring (2) should be compressed so as to impart the effect the same as the effect inserting the conductor (8) by the holder (5). However, in the holders having said structure, many kinds of the holders are needed depending upon the number of the main contactors and accordingly, it is expensive. Summary of the invention In accordance with the present invention, there is provided independent main contactors which respectively have the force for holding each terminal. The present invention is to provide a contact device which comprises a compression spring hooked between a pair of the contactors for holding a conductor; and a support for slightly opening a gap between both contactors by overcoming to the compression force of the compression spring whereby it is economical as a main contactor unit and can vary numbers of the main contactors. This is highly advantageous to use it in the practical purpose. Brief description of the drawings Figure lisa plan view of the conventional main contactor; Figure 2 is a schematic view of a conventional holder; Figure 3 is a schematic view of a conventional assembled contactors; Figure 4 is a plan view of one embodiment of the contactor device of the present invention; Figures 5, 6 and 7 are respectively schematic views of embodiments of a support used in the present invention; and Figure 8 is a schematic view of one embodiment of assembled contactors of the present invention. Detailed description of the preferred embodiments The present invention is to overcome the disadvantages of the conventional device. The main contactors are independently arranged to have each force for holding each terminal. Referring to the drawings, one embodiment of the present invention will be illustrated. In Figure 4, the support (9) is fitted to the outer part of each compression coil spring (2) of each main contactor and the main contactors (1) are assembled. The support (9) is brought into contact with the contactors (1). The support (9) holds the contactors (1) under opening a gap of the contactors 1 so as to apply the spring force to the spring hook (3) by the compression coil spring (2). The size of the support (9) is set so that the size of the fitting part at the terminal side of the main contactors is smaller than the size of the terminal (7). When the main contactor having said structure is fitted to the terminal (7), the spring force of the compression coil spring (2) is applied to the contactors (1) by the terminal (7) and the support (9). Therefore, the main contactor is held to be coaxial to the terminal (7) so as to independently fit each main contactor to the terminal as shown in Figure 8 even through the spring force of the compression coil spring (2) is applied through the terminal (7) and the support (9) to the contactors (1) and the conductor (8) is not inserted. In the above-mentioned embodiment, a cylindrical tube type support (9) as shown in Figure 5 is used. Thus, the same effect can be imparted by inserting the support which is shaped by a sheet metal press working as shown in Figures 6 or 7 when the support is inserted so as to hold under slight deviation of the compression coil spring. CLAIMS
1. A contact device which comprises a compression spring held between a pair of contactors which holds a conductor; and a support which is fitted between both said contactors so as to slightly open a gap between both said contactors by overcoming to the compression force of said compression spring.
2. A contact device according to Claim 1 wherein said support is a cylindrical tube which is fitted so as to surround said compression spring.
3. A contact device substantialiy as hereinbefore described with reference to and as shown by Figures 4 to 8 of the accompanying drawings.
3. A contact device according to Claim 1 wherein said compression spring is hooked between both said contactors through a spring hook.
4. A contact device substantially as hereinbefore described with reference to and as shown by Figures 4 to 8 of the accompanying drawings.
New claims or amendments to claims filed on 19 Nov. 1980 Superseded claims Claims 1 - 4 inclusive New or amended claims:
1. A contact device which comprises a pair of contactors which holds a conductor; each spring hook hooking through a lock pin to said each contactor; a compression spring fitted to said spring hook to apply a force for shortening a gap between said contacts; and a support which is fitted between both said contactors so as to slightly open a gap between both said contactors by overcoming to the compression force of said compression spring to apply a selfclosing force between both said contactors.
2. A contact device according to Claim 1 wherein said support is a cylindrical tube which is fitted so as to surround said compression spring.
GB7941828A 1979-12-04 1979-12-04 Electrical contact device Expired GB2064884B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7941828A GB2064884B (en) 1979-12-04 1979-12-04 Electrical contact device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7941828A GB2064884B (en) 1979-12-04 1979-12-04 Electrical contact device

Publications (2)

Publication Number Publication Date
GB2064884A true GB2064884A (en) 1981-06-17
GB2064884B GB2064884B (en) 1983-12-07

Family

ID=10509604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7941828A Expired GB2064884B (en) 1979-12-04 1979-12-04 Electrical contact device

Country Status (1)

Country Link
GB (1) GB2064884B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268843A (en) * 1992-07-16 1994-01-19 Gec Alsthom Equip Basse Tens A connecting clamp
GB2289379A (en) * 1994-05-13 1995-11-15 Neutrik Ag Contact element for electrical cannectors
EP2696447B1 (en) * 2011-06-27 2018-09-12 Japan Aviation Electronics Industry, Limited Connector, connector device, and battery unit
EP3907828A4 (en) * 2019-01-02 2022-09-21 Shanghai Leading Connection Mechatronics Technology Co., Ltd Electrical appliance apparatus and electrical connection assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268843A (en) * 1992-07-16 1994-01-19 Gec Alsthom Equip Basse Tens A connecting clamp
DE4323426A1 (en) * 1992-07-16 1994-01-20 Gec Alsthom Equip Basse Tens Contact pliers
FR2693843A1 (en) * 1992-07-16 1994-01-21 Alsthom Gec Skewer clamp.
ES2078156A2 (en) * 1992-07-16 1995-12-01 Gec Alsthom Equip Basse Tens A connecting clamp
GB2268843B (en) * 1992-07-16 1996-02-28 Gec Alsthom Equip Basse Tens A connecting clamp
GB2289379A (en) * 1994-05-13 1995-11-15 Neutrik Ag Contact element for electrical cannectors
GB2289379B (en) * 1994-05-13 1998-02-25 Neutrik Ag Contact element for electrical connectors
EP2696447B1 (en) * 2011-06-27 2018-09-12 Japan Aviation Electronics Industry, Limited Connector, connector device, and battery unit
EP3907828A4 (en) * 2019-01-02 2022-09-21 Shanghai Leading Connection Mechatronics Technology Co., Ltd Electrical appliance apparatus and electrical connection assembly

Also Published As

Publication number Publication date
GB2064884B (en) 1983-12-07

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19951107

PE20 Patent expired after termination of 20 years

Effective date: 19991203