CN88210965U - Direct heating ferrite pulse time relay - Google Patents
Direct heating ferrite pulse time relay Download PDFInfo
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- CN88210965U CN88210965U CN 88210965 CN88210965U CN88210965U CN 88210965 U CN88210965 U CN 88210965U CN 88210965 CN88210965 CN 88210965 CN 88210965 U CN88210965 U CN 88210965U CN 88210965 U CN88210965 U CN 88210965U
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- ferrite
- soft magnetic
- time relay
- pulse time
- armature
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Abstract
The utility model discloses a direct heating ferrite pulse time relay, mainly comprising a soft magnetic ferrite [4], an armature [10], a permanent magnet [26], static touching chips [12], [19] and metal caps [6], [25]. The utility model not only has the function of the pulse time relay but also has the advantages of simple structure, low cost, low cost, no using of the dc power supply and long pulse period. So the direct heating ferrite pulse time relay can be widely used in various places where the periodical turning-on and turning-off of the circuit are needed.
Description
The utility model relates to a kind of pulsating time relay, particularly a kind of directly-heated type ferrite pulse time relay.It is widely used in, and various needs are periodically connected and the place of branch deenergizing.
The model commonly used of existing electronic type pulse time relay is a JS15 series transistor pulse time relay.Its operation principle is: a flip and flop generator is given in unijunction transistor output pulse, makes relay contact carry out periodic repetitive operation.It exists complex structure, cost height and must use built-in or external shortcomings such as dc power supply as other electronic type pulse time relay.
The exemplary of electrodynamic type pulsation time controller is the low pressure roller of rainbow.Its operation principle is: rotated by motor drives garden tube, the conducting strip that is installed on the tube of garden is contacted with fixed contact successively, thereby each controlled circuit is periodically connected and disjunction.It exists the shortcoming that is difficult to popularize use because of cost is too high as other electrodynamic type pulsation time controller.
The relay system multivibrator connects and disjunction circuit period property ground by two electromagnetic relays by capacitance-resistance charge-discharge circuit control time-delay.Its major defect is: the pulsation period falls short of, and cost is also not too low, and must use built-in or external dc power supply.
At present the most cheap pulsation time controller is the double-metal sheet type relay that is contained in the inert gas filled glass envelope, and it is that thermal effect according to glow discharge can make the principle of bimetal leaf generation deformation make.Though it is cheap, because to exist the pulsation period not long, shortcoming such as the directly actuated electric current of energy is too little is so the scope of application is little.
Task of the present utility model is that a kind of novel pulsating time relay will be provided, it not only can periodically be connected and the branch deenergizing, thereby and have simple in structure, cost is low, low price, do not need can overcome effectively with advantages such as dc power supply, pulsation period are long the shortcoming of prior art.
Task of the present utility model adopts as shown in drawings, and scheme realizes.Accompanying drawing is a structural representation of the present utility model.
Among the figure, (1), (13), (15), (18) are insulation crust, (2) be latten(-tin), (3), (14) are terminal screw, (4) be soft magnetic ferrite, (5), (27), (28) are the brass hold-down screw, (6), (25) are metal cap, (7), (8), (9), (11), (20), (21), (22), (24) are contact, (10) are armature, (12), (19) they are static contact, (16) be the wiring weld tabs, (17) be flexible conductor, (23) are the magnetic conduction support, and (26) are permanent magnet.
By accompanying drawing as can be seen: the utility model is mainly by soft magnetic ferrite (4), armature (10), permanent magnet (26), magnetic conduction support (23), static contact (12), (19), metal cap (6), (25), latten(-tin) (2), brass hold-down screw (5), (27) form, design feature is: the magnetic pole of permanent magnet (26) and the middle part of soft magnetic ferrite (4) link to each other, another magnetic pole links to each other with magnetic conduction support (23), on magnetic conduction support (23), be equipped with armature (10), the two ends of armature (10) lay respectively at the two ends pin and the static contact (12) of soft magnetic ferrite (4), (19) among the formed interval, metal cap (6), (25) distinguish lock ring on the two ends pin of soft magnetic ferrite (4), brass hold-down screw (5), (27) passing soft magnetic ferrite (4) upward is tightened on the latten(-tin) (2) in the hole of reservation.
In structure shown in the drawings, permanent magnet (26) can be selected the permanent magnetic ferrites of barium for use, also can select permanent magnetic ferrites of strontium or permanent-magnet alloy for use.Soft magnetic ferrite (4) selects for use Curie point in 120 ℃～160 ℃ scopes, and resistivity is the manganese-zinc ferrite (as the R6K type ferrite) in 50～5000 Europe centimetre, also can select other soft magnetic ferrite for use.The longitudinal section of soft magnetic ferrite (4) be shaped as " U " shape, also can be other shape.Good coincideing should be satisfied in soft magnetic ferrite (4) position middle and that permanent magnet (26) combines, and is coated with resistant to elevated temperatures insulating varnish.Armature (10) should be able to rotate on its support (23) neatly.The material selection electrician of armature (10) also can select other magnetically soft alloy for use with pure iron (is the electromagnetic pure iron of DT5 as code name).The material of support (23) is optional uses pure iron with the electrician, also can select other magnetically soft alloy for use.Static contact (12), (19) select for use the good conductor sheet metal with favorable elasticity to process, and its installation site should guarantee respectively to organize opening apart from 1～5 millimeter scope of corresponding contact.Metal cap (6), (25) adopt good conductor material and process according to the shape of soft magnetic ferrite (4) two ends pin.There is excellent contact metal cap (6), (25) lock ring respectively on the two ends pin of soft magnetic ferrite (4) and with it.Brass hold-down screw (28) passes insulation crust (1), latten(-tin) (2), soft magnetic ferrite (4), permanent magnet (26) and is tightened on the support (23) of armature (10), and must not and latten(-tin) (2), soft magnetic ferrite (4) contact.The yellow gold material can be adopted in contact (7), (8), (9), (11), (20), (21), (22), (24), also can select other contactor material for use.Flexible conductor (17) can be selected the heat-resistant polyvinyl chloride insulated flexible cord for use, also can select other multiply flexible cord for use.The two ends of flexible conductor (17) should be welded on respectively on the mid point of wiring weld tabs (16) and armature (10).Insulation crust (1), (13), (15), (18) should be as a whole, and its material can be selected heat-resisting class phenolic plastics for use, also can select other insulation system material for use.Terminal screw (3), (14) can select for use brass to make, and also can select for use other electrical conductivity alloy to make.Wiring weld tabs (16) should select for use the good conductor material to make.
The utility model is its permeability sharply descends when surpassing Curie point according to the temperature of soft magnetic ferrite a principle design.
Below with reference to accompanying drawing operation principle of the present utility model is described as follows: an end of power line is connected on the armature (10) by terminal screw (14), wiring weld tabs (16), flexible conductor (17), and the other end of power line is connected on the terminal screw (3).One end of controlled load is connected on the static contact (19), and the other end is connected on the screw (3).When armature (10) is on as shown in the figure the temporary stable position, electric current is divided into two-way, one tunnel left part and latten(-tin) (2) through armature (10), contact (8), (7), metal cap (6), soft magnetic ferrite (4) arrives terminal screw (3), and screw (3) is also arrived through armature (10), contact (21), (20), static contact (19) and controlled load in another road.At this moment controlled load circuit is connected.Because electric current will produce certain Joule heat by soft magnetic ferrite (4) left part the time, so soft magnetic ferrite (4) left part temperature will raise.When temperature surpasses the Curie point of soft magnetic ferrite (4), the permeability of soft magnetic ferrite (4) left part sharply descends, and at this moment the permeability of soft magnetic ferrite (4) right part is still very big, thereby the magnetic force that is subjected to less than right-hand member of the magnetic force that is subjected to of armature (10) left end, so the left end of armature lifts, right-hand member falls, and armature (10) is transformed into another temporary stable position.At this moment controlled load circuit disjunction, electric current be no longer by controlled load, and only by armature (10) through the right part of contact (22), (24), metal cap (25), soft magnetic ferrite (4) and latten(-tin) (2) to terminal screw (3).Because also will produce certain Joule heat during the right part of electric current by soft magnetic ferrite (4), so the temperature of soft magnetic ferrite (4) right part raises.Through after a while when temperature is elevated to above Curie point, the permeability of soft magnetic ferrite (4) right part sharply descends, and at this moment the left part of soft magnetic ferrite (4) has been reduced to below the Curie point owing to temperature, thereby permeability is very big, the magnetic force that this magnetic force that armature (10) left end is subjected to is subjected to greater than right-hand member, so the left end of armature (10) falls, right-hand member lifts, armature returns original temporary stable position again, has connected controlled load circuit.Then, the process that repeats just now again to be narrated is gone round and begun again, till power supply is cut off.Like this, armature (10) turns round on two temporary stable position and changes, and load circuit is periodically connected and disjunction, thereby has realized the function of the pulsating time relay.
Between static contact (12) and screw (3), also can insert controlled load, but the time that this load circuit is connected just in time be the time of aforementioned load circuit disjunction, and the time of this load circuit disjunction just in time is the time that aforementioned load circuit is connected.
Pulsation period of the present utility model is mainly determined by Curie point, resistivity, shape and size and the supply voltage of soft magnetic ferrite (4) itself.After supply voltage is determined, the change pulsation period will realize by changing soft magnetic ferrite (4).If the ratio of interior turn-on time of change one-period and break-time then can be realized by the ratio that changes soft magnetic ferrite (4) left part and right part cross-sectional area.
Preferred embodiment of the utility model is: it is 140 ℃ manganese-zinc ferrite that soft magnetic ferrite (4) is selected Curie point for use.
Claims (5)
1, a kind of mainly by soft magnetic ferrite [4], armature [10], permanent magnet [26], magnetic conduction support [23], static contact [12], [19], metal cap [6], [25], latten(-tin) [2], brass hold-down screw [5], [27] the directly-heated type ferrite pulse time relay of Zu Chenging, it is characterized in that the magnetic pole of said permanent magnet [26] and the middle part of soft magnetic ferrite [4] link to each other, another magnetic pole links to each other with magnetic conduction support [23], on magnetic conduction support [23], be equipped with armature [10], the two ends of armature [10] lay respectively at the two ends pin and the static contact [12] of soft magnetic ferrite [4], [19] among the formed interval, metal cap [6], [25] distinguish lock ring on the two ends pin of soft magnetic ferrite [4], brass hold-down screw [5], [27] passing soft magnetic ferrite [4] upward is tightened on the latten(-tin) [2] in the hole of reservation.
2, according to the said directly-heated type ferrite of claim 1 pulse time relay, it is characterized in that said soft magnetic ferrite (4) selects for use Curie point in 120 ℃～160 ℃ scopes, resistivity is the manganese-zinc ferrite in 50～5000 Europe centimetre.
3, according to the said directly-heated type ferrite of claim 1 pulse time relay, it is characterized in that said soft magnetic ferrite (4) the longitudinal section be shaped as " U " shape.
4,, it is characterized in that the material selection electrician of said armature (10) uses pure iron according to the said directly-heated type ferrite of claim 1 pulse time relay.
5,, it is characterized in that said static contact (12), (19) select for use the good conductor sheet metal with favorable elasticity to process according to the said directly-heated type ferrite of claim 1 pulse time relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210965 CN88210965U (en) | 1988-04-11 | 1988-04-11 | Direct heating ferrite pulse time relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210965 CN88210965U (en) | 1988-04-11 | 1988-04-11 | Direct heating ferrite pulse time relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88210965U true CN88210965U (en) | 1988-11-09 |
Family
ID=4844420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88210965 Withdrawn CN88210965U (en) | 1988-04-11 | 1988-04-11 | Direct heating ferrite pulse time relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88210965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777661A (en) * | 2012-08-08 | 2012-11-14 | 林永江 | Control method and control device of slow speed type electric valve |
-
1988
- 1988-04-11 CN CN 88210965 patent/CN88210965U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777661A (en) * | 2012-08-08 | 2012-11-14 | 林永江 | Control method and control device of slow speed type electric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |