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IPC 7
 
H01H-H01H00530
  H01H 7/00 - H01H 13/76  

SECTION H – ELECTRICITY


H 01BASIC ELECTRIC ELEMENTS


H 01 HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B 7/10; overvoltage protection resistors, resistive arresters H01C 7/12, H01C 8/04; electrolytic self-interrupters H01G 9/18; switching devices of the waveguide type H01P; devices for interrupted current collection H01R 39/00; overvoltage arresters using spark gaps H01T 4/00; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K 17/00)


Notes

(1)This subclass covers (in groups H01H 69/00 to H01H 87/00) devices for the protection of electric lines or electric machines or apparatus in the event of undesired change from normal electric working conditions, the electrical condition serving directly as the input to the device.

(2)This subclass does not cover bases, casings, or covers accommodating two or more switching devices or for accommodating a switching device as well as another electric component, e.g. bus-bar, line connector. Those bases, casings or covers are covered by group H02B 1/26.

(3)In this subclass, the following terms or expressions are used with the meanings indicated:

 "relay" means a switching device having contacts which are operated from electric inputs which supply, directly or indirectly, all the mechanical energy necessary to cause both the closure and the opening of the contacts;

 "driving mechanism" refers to the means by which an operating force applied to the switch is transmitted to the moving contact or contacts;

 "operating" is used in a broader sense than "actuating" which is reserved for those parts not touched by hand to effect switching;

 "acting" or "action" means a self-induced movements of parts at one stage of the switching. These connotations apply to all parts of the verbs "to operate"; "to actuate", and "to act", and to words derived therefrom, e.g. to "actuation".

(4)In this subclass, details are classified as follows:

 details of an unspecified type of switching device, or disclosed as applicable to two or more kinds of switching devices designated by the terms or expressions "switches", "relays", "selector switches", and "emergency protective devices", are classified in groups H01H 1/00 to H01H 9/00;

 details of an unspecified type of switch, or disclosed as applicable to two or more types of switches as defined by groups H01H 13/00 to H01H 43/00 and subgroups H01H 35/02, H01H 35/06, H01H 35/14, H01H 35/18, H01H 35/24, and H01H 35/42, all hereinafter called basic types, are classified in groups H01H 1/00 to H01H 9/00;

 details of an unspecified type of relay, or disclosed as applicable to two or more types of relays as defined by groups H01H 51/00 to H01H 61/00, hereinafter called basic types, are classified in group H01H 45/00;

 details of an unspecified protective device, or applicable to two or more types of protective devices as defined by groups H01H 73/00 to H01H 83/00, hereinafter called basic types, are classified in group H01H 71/00.

 However, details only described with reference to, or clearly only applicable to, switching devices of a single basic type, are classified in the group appropriate to switching devices of that basic type, e.g. H01H 19/02, H01H 75/04;

 mechanical structural details of control members of switches or of keyboards such as keys, push-buttons, levers or other mechanisms for transferring the force to the activated elements are classified in this subclass, even when they are used for controlling electronic switches.

 However, mechanical details directly producing electronic effects are classified in group H03K 17/94.  [4]


Subclass Index

ELECTRIC SWITCHES 

Characterised by the principle of control 

mechanical 

rectilinearly movable: one direction; two directions 

H01H 13/00; H01H 15/00 

with angular displacement: unlimited angle; limited angle 

H01H 19/00; H01H 21/00 

by pulling; by tumbling 

H01H 17/00; H01H 23/00 

with compound movements 

H01H 25/00 

by removable members 

H01H 27/00 

physical 

general; electric or magnetic field; heat; explosion 

H01H 35/00; H01H 36/00; H01H 37/00; H01H 39/00 

Characterised by the contacts 

liquid 

H01H 29/00 

Characterised by the voltage or the intensity 

without arc-extinguishing means; with such means 

H01H 31/00; H01H 33/00 

Characterised by the actuation duration 

manual; programme 

H01H 41/00; H01H 43/00 

Manufacture 

H01H 11/00 

RELAYS 

Electromagnetic; dynamo-electric; magnetostrictive 

H01H 51/00; H01H 53/00; H01H 55/00 

Electrostrictive or piezo-electric; electrostatic; electrothermal 

H01H 57/00; H01H 59/00; H01H 61/00 

Details 

general; electromechanical; circuits 

H01H 45/00; H01H 50/00; H01H 47/00 

Manufacture 

H01H 49/00 

SELECTORS 

Types 

H01H 67/00 

Details 

H01H 63/00 

Manufacture 

H01H 65/00 

SECTIONALISERS 

low-tension with blade-type contact 

H01H 21/54 

for high tension 

H01H 31/00 

combined with fuses 

H01H 85/54 

PROTECTIVE DEVICES 

Circuit-breaking switches 

with resetting: manual; by motor; separate 

H01H 73/00; H01H 75/00; H01H 77/00 

Protective switches 

by short-circuit; opening and closing; particular 

H01H 79/00; H01H 81/00; H01H 83/00 

Fuses; evaporation devices 

H01H 85/00; H01H 87/00 

Details of protective switches and relays 

H01H 71/00 

Manufacture 

H01H 69/00 

GENERAL DETAILS 

Contacts 

H01H 1/00 

Mechanisms 

operating contacts in general; snap-action; delay 

H01H 3/00; H01H 5/00; H01H 7/00 

Other details 

H01H 9/00 



Electric switches


1/

00Contacts (liquid contacts H01H 29/04)

1/

02.characterised by the material thereof

1/

04..Co-operating contacts of different material

1/

06.characterised by the shape or structure of the contact-making surface, e.g. grooved

1/

08..wetted with mercury

1/

10..Laminated contacts with divided contact surface

1/

12.characterised by the manner in which co-operating contacts engage

1/

14..by abutting

1/

16...by rolling; by wrapping; Roller or ball contacts

1/

18...with subsequent sliding

1/

20...Bridging contacts

1/

22...with rigid pivoted member carrying the moving contact

1/

24...with resilient mounting

1/

26....with spring blade support

1/

28.....Assembly of three or more contact-supporting spring blades

1/

30....within supporting guides

1/

32...Self-aligning contacts

1/

34...with provision for adjusting position of contact relative to its co-operating contact

1/

36..by sliding (by rolling or wrapping H01H 1/16)

1/

38...Plug-and-socket contacts

1/

40...Contact mounted so that its contact-making surface is flush with adjoining insulation

1/

42...Knife-and-clip contacts

1/

44...with resilient mounting

1/

46...self-aligning contacts

1/

48...with provision for adjusting position of contact relative to its co-operating contact

1/

50.Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position

1/

52..Contacts adapted to act as latches

1/

54..by magnetic force

1/

56.Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing

1/

58.Electric connections to or between contacts; Terminals (electric connections in general H01R)

1/

60.Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces (cleaning by normal sliding of contacts H01H 1/18, H01H 1/36)

1/

62.Heating or cooling of contacts

1/

64.Protective enclosures, baffle plates, or screens for contacts (for arc-extinguishing H01H 9/30; for mercury contacts H01H 29/04)

1/

66..Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts


3/

00Mechanisms for operating contacts (snap-action arrangements H01H 5/00; devices for introducing a predetermined time delay H01H 7/00; thermal actuating or release means H01H 37/02)

3/

02.Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch

3/

04..Levers (tumblers H01H 23/14)

3/

06...Means for securing to shaft of driving mechanism

3/

08..Turn knobs

3/

10...Means for securing to shaft of driving mechanism

3/

12..Push-buttons

3/

14..adapted for operation by a part of the human body other than the hand, e.g. by foot

3/

16..adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift

3/

18...the movement in one direction being intentionally by hand, e.g. for setting automatically cancelled trafficators

3/

20..wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

3/

22.Power arrangements internal to the switch for operating the driving mechanism

3/

24..using pneumatic or hydraulic actuator

3/

26..using dynamo-electric motor (for storing energy in a spring motor H01H 3/30)

3/

28..using electromagnet (for storing energy in a spring motor H01H 3/30; for operating relays H01H 45/00)

3/

30..using spring motor

3/

32.Driving mechanisms, i.e. for transmitting driving force to the contacts (snap-action arrangements H01H 5/00; introducing a predetermined time delay H01H 7/00)

3/

34..using ratchet

3/

36..using belt, chain, or cord

3/

38..using spring or other flexible shaft coupling

3/

40..using friction, toothed, or screw-and-nut gearing

3/

42..using cam or eccentric

3/

44..using Geneva movement

3/

46..using rod or lever linkage, e.g. toggle

3/

48..using lost-motion device

3/

50..with indexing or locating means, e.g. indexing by ball and spring

3/

52..with means to ensure stopping at intermediate operative positions

3/

54.Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts

3/

56..using electromagnetic clutch

3/

58..using friction, toothed, or other mechanical clutch

3/

60.Mechanical arrangements for preventing or damping vibration or shock

3/

62.Lubricating means structurally associated with the switch (for lubricating contact-making surfaces H01H 1/60)


5/

00Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement

5/

02.Energy stored by the attraction or repulsion of magnetic parts

5/

04.Energy stored by deformation of elastic members (by deformation of bimetallic element in thermally-actuated switches H01H 37/54)

5/

06..by compression or extension of coil springs

5/

08...one end of spring transmitting movement to the contact member when the other end is moved by the operating part

5/

10...one end of spring being fixedly connected to the stationary or movable part of the switch, and the other end reacting with a movable or stationary rigid member respectively through pins, cams, toothed, or other shaped surfaces

5/

12...having two or more snap-action motions in succession

5/

14..by twisting of torsion members

5/

16...with auxiliary means for temporarily holding parts until torsion member is sufficiently strained

5/

18..by flexing of blade springs

5/

20...single blade moved across dead-centre position

5/

22...blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg

5/

24....having three legs

5/

26...having two or more snap-action motions in succession

5/

28...two separate blade springs forming a toggle

5/

30..by buckling of disc springs

   H01H 7/00 - H01H 13/76  
 

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