CN2138330Y - Electronically voltage regulating timing switch shell - Google Patents

Abstract

The utility model relates to an electronically voltage regulating timing switch shell. The utility model comprises an adjusting device and a variable resistor, wherein, the adjusting device is composed of an outer shell (1), an adjusting disk (2), an annular resistor (4), an annular conductor (5), contacts (3), a compression spring (25), a core shaft (7), movable contacts (21), and static contacts (20), the adjusting disk (2) is arranged in a circular table which is indented into the surface of the outer shell (1), the adjusting device can be used as both an inching button and a variable resistor, and the variable resistor is composed of an annular adjusting disk (2'), an annular resistor sheet (4'), an annular conducting sheet (5'), contacts (3'), a compression spring (25'), and a positioning card (26). The switch shell can improve the functions of switches on the basis that the volume of the existing akin switch shells is not increased so that conditions are offered for the miniaturisation of the electronically voltage regulating timing switch shell.

Description

Electronically voltage regulating timing switch shell

The utility model relates to switch case, a kind of electronic pressure regulating, the timing switch housing selected for use when especially a kind of confession design electronic pressure regulating, timing switch.

The Chinese patent communique once disclosed the switch case that a kind of name is called " electronic pressure regulating, timing switch housing " (application number is 912059680).This switch case will be controlled the potentiometer in electronic pressure regulating, the timing circuit, the mains switch of control out-put supply break-make is molten to be one, having profile can need design for people, advantages of simple structure and simple, but weak point is: (1) this switch case must be provided with special inching button, just can provide the contact signal of the needs that satisfy electronic pressure regulating, timing switch circuit; (2) this switch case is when being used for simultaneously conduction time of load and operating current thereof controlled respectively, two covers must be set on housing include that adjustment disk and housing are molten to be the variable resistor of one, just can satisfy the demand, this will increase the volume of switch case undoubtedly.

The purpose of the utility model, being provides a kind of on the basis of the volume that need not increase existing similar switch case at the deficiency of aforementioned techniques, with include in the existing similar switch adjustment disk and and shell is molten improves for the variable resistor structure of one, make it to become have both can be electronic pressure regulating, timing switch circuit provides variable resistor, can be this electronic pressure regulating timing switch circuit again provides the electronic pressure regulating of the governor motion of crawl contact signal, timing switch housing.

Realize the technical scheme that above-mentioned purpose provided:

A kind of electronic pressure regulating timing switch housing, this housing comprises that a upper surface has the shell of recessed round platform, also have by by the adjustment disk of mandrel device in described recessed round platform, be seated in ring-type resistance and ring-shaped conductor in two recessed concentric circles annular grooves of described adjustment disk lower surface respectively, and the variable resistor that contact constituted that is positioned at the round platform bottom of the female and includes compression spring and contact respectively and can be respectively contact respectively with described ring-type resistance and ring-shaped conductor, it is characterized in that described electronic pressure regulating timing switch housing also comprises:

A crawl contact mechanism, this crawl contact mechanism is realized switching on and off by pushing described adjustment disk, and it is connected by its upper end and described adjustment disk bottom surface and its lower end is stretched into moving contact (21), the fixed contact (20) that is positioned at the shell inner bottom part that mandrel (7) in the described shell and this mandrel (7) lower end be connected and is stuck between described moving contact (21) and the outer casing inner wall to guarantee ring card (22) formation of described adjustment disk position.

The essence of described scheme is with being used to regulate variable-resistance adjustment disk in the shells with existing, button as a crawl contact mechanism uses simultaneously, so just can be on the basis of the volume that does not increase existing housing, the resistance value that this adjustment disk is had can provide variation respectively and the effect of two kinds of functions of crawl contact signal.

Further scheme is described by adjustment disk, mandrel (7), moving contact (21), also include a ring-type adjustment disk (2 ｀) that two recessed concentric circles annular grooves are arranged by its lower surface between the round platform that inching button mechanism that fixed contact (20) constitutes and described shell are recessed on, can insert the interior ring-type resistor disc (4 ｀) and the ring-type conducting strip (5 ｀) of two recessed concentric circles annular grooves of this ring-type adjustment disk (2 ｀) respectively, and be positioned at round platform bottom that described shell is recessed on and variable resistor that can be respectively constituted with described ring-type resistor disc (4 ｀) and the contacted contact of ring-type conducting strip (5 ｀) (3 ｀), described contact (3 ｀) is with compression spring (25 ｀), there is annular recess in ring-type adjustment disk outer wall week, between the round platform wall week that this groove and described case surface are recessed into locator card (26) is arranged.Described locator card (26) is used for described ring-type adjustment disk (2), is fixed in the recessed round platform of described outer surface of outer cover.

This further scheme can provide two variable-resistance levels respectively with only providing a variable-resistance ability to be increased in the described scheme, and this raising can not increase primary electron pressure regulation timing switch housing volume.

Compare with prior art, the utility model realized on the basis of the volume that does not increase existing similar switch case, will having now have in the housing adjustment disk and and the molten variable resistor of shell for one become one and both can be used for regulating and provide variable resistor to the electric timing switch circuit, can be used as a governor motion that a crawl signal is provided to the electronic timing pressure regulating on-off circuit again, the function of existing switch is improved, for the housing miniaturization provides condition, reach the purpose of the utility model fully.

The utility model has following accompanying drawing, and accompanying drawing is instantiation.

Fig. 1 is the structural representation of an example of the present utility model;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is another example of the utility model;

Fig. 4 is the cutaway view of Fig. 3.

Fig. 1, Fig. 2 are described as follows:

Among the figure: the 1-shell, 1 '-the recessed round platform of upper surface of outer cover.The 2-adjustment disk, 4,5-is arranged in the ring-type resistance and the ring-shaped conductor of two recessed concentric circles annular grooves of adjustment disk (2) lower surface, 3-is with the contact of compression spring (25), the 6-location hole, the 7-mandrel, 22-encircles card, 8-balance contact and spring are formed variable resistor by them.But the cover of 9-double as button, the 10-light-emitting diode, the 11-lead, the 12-spring, the 13-card, the bar that 14-links to each other with cover (9), the contact that 15-is auxiliary, 16-assists fixed contact, forms a known inching button by them.The 17-base plate, the 18-screw.The 19-binding post, the 20-fixed contact, the moving contact that 21-links to each other with the mandrel lower end, they utilize adjustable plate (2) to constitute a crawl contact mechanism, and this crawl contact mechanism utilization compression spring (25) resets.The 23-cover.The 24-lead.

This example can provide a variable resistor, and the power sub-pressure regulation, timing circuit of two crawl contact signals used.

Fig. 3, Fig. 4 are described as follows:

Among the figure: 2 ' ring-type adjustment disk, 4 ', 5 '-lay respectively at ring-type resistor disc and ring-type conducting strip in two recessed concentric circles annular grooves of ring-type adjustment disk (2 ') lower surface, 3 '-be with the contact of compression spring (25 '), constitute variable resistor in this example by them with ring-type adjustment disk (2 ').Be arranged in described ring-type adjustment disk (2 ') middle position be with Fig. 1 and Fig. 2 represented have adjustment disk (2) but and double as variable resistor and the identical governor motion of structure of the crawl contact mechanism of crawl contact signal is provided, no longer repeat here to mark and introduce.

Among the figure: the 26-locator card.9 '-the inching button mechanism identical with known inching button among Fig. 1, Fig. 2.1 '-shell.

This example can provide two variable resistors that can change respectively and two crawl contact signals for electronic pressure regulating timing electronic circuit, is a comparatively desirable example.

Claims (2)

1, a kind of electronic pressure regulating timing switch housing, this housing comprises that a upper surface has the shell of recessed round platform, also have the variable resistor that contact constituted that is seated in ring-type resistance and the ring-shaped conductor in two recessed concentric circles annular grooves of described adjustment disk lower surface and is positioned at the round platform bottom of the female and includes compression spring and contact respectively and can be respectively contact respectively with described ring-type resistance and ring-shaped conductor by, respectively, it is characterized in that described electronic pressure regulating timing switch housing also comprises by the adjustment disk of mandrel device in described recessed round platform:

A crawl contact mechanism, this crawl contact mechanism is realized switching on and off by pushing described adjustment disk, it is connected by its upper end and described adjustment disk bottom surface and moving contact (21), the fixed contact (20) that is positioned at the shell inner bottom part that mandrel (7) in the described shell and this mandrel (7) lower end be connected stretched in its lower end and be stuck on the mandrel axle body between described moving contact (21) and the outer casing inner wall to guarantee ring card (22) formation of described adjustment disk position

2, by the described electronic pressure regulating timing switch of claim 1 housing, it is characterized in that described by adjustment disk, mandrel (7), moving contact (21), also comprise a ring-type adjustment disk (2 ') that two recessed concentric circles annular grooves are arranged by its lower surface between the round platform that crawl contact mechanism that fixed contact (20) constitutes and described shell are recessed on, can embed ring-type resistor disc (4 ') and ring-type conducting strip (5 ') in two recessed concentric circles annular grooves of this ring-type adjustment disk (2 ') respectively, and be positioned at round platform bottom that described shell is recessed on and the variable resistor that can be constituted with the contact (3 ') that described ring-type resistor disc (4 ') and ring-type conducting strip (5 ') contact respectively, described contact (3 ') is with compression spring (25 '), there is annular recess in ring-type adjustment disk outer wall week, between the round platform wall week that this groove and described case surface are recessed into locator card (26) is arranged.

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