CN207381254U - E types transformer and safety alarm device - Google Patents
E types transformer and safety alarm device Download PDFInfo
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- CN207381254U CN207381254U CN201720731293.XU CN201720731293U CN207381254U CN 207381254 U CN207381254 U CN 207381254U CN 201720731293 U CN201720731293 U CN 201720731293U CN 207381254 U CN207381254 U CN 207381254U
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Abstract
The utility model provides a kind of E types transformer and safety alarm device, is related to transformer technology field, wherein, E types transformer includes primary coil, secondary coil and E shaped iron cores；E shaped iron cores include：One horizontal magnetic core and three longitudinal magnetic cores；Three longitudinal magnetic cores are separately positioned on the both ends and centre position of horizontal magnetic core；The end that longitudinal magnetic core in centre position is connected with horizontal magnetic core is arranged on, is provided with adjusting knob；Rotation of adjustment knob can make longitudinal flux core extend along direction to stretch, to adjust the number of turn for being wound in longitudinal magnetic core coil；Primary coil and secondary coil are respectively wound around the magnetic core of E shaped iron cores.E types transformer provided by the utility model can neatly change the winding of transformer, so as to change ac output voltage, meet the needs of circuit is to changeable voltage.
Description
Technical field
The utility model is related to transformer technology field, more particularly, to a kind of E types transformer and safety alarm device.
Background technology
Transformer (Transformer) is the device for changing alternating voltage using the principle of electromagnetic induction, main member
It is primary coil, secondary coil and iron core (magnetic core).Major function has：Voltage transformation, current transformation, impedance are converted, isolated, is steady
It presses (magnetic saturation transformer) etc..It can be divided by core structure：C-type transformer, E types transformer, R type transformers etc..
Wherein, E types transformer manufacturing is simple for process, advantage of lower cost, the coil to match due to lamination and with it
Skeleton has formed series and mass production, therefore application is very extensive.
In practical application, usually by changing the coil turn on magnetic core, achieve the purpose that change voltage, electric current, however
The maximum of the coil turn of coiling is fixed on the magnetic core of old-fashioned E types transformer, therefore, maximum more than coil turn
During value, old-fashioned E types transformer tends not to neatly change voltage, electric current, for needing the circuit of flexibly change voltage, electric current
For, the application of old-fashioned E types transformer has certain limitation.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of E types transformer and safety alarm device, Neng Gouling
Change the winding of transformer livingly, so as to change voltage, electric current meets the needs of circuit is to changeable voltage.
In a first aspect, the utility model embodiment provides a kind of E types transformer, including primary coil, secondary coil and E
Shaped iron core；
Wherein, E shaped iron cores include：One horizontal magnetic core and three longitudinal magnetic cores；
Three longitudinal magnetic cores are separately positioned on the both ends and centre position of horizontal magnetic core；
The end that longitudinal magnetic core in centre position is connected with horizontal magnetic core is arranged on, is provided with adjusting knob；
Rotation of adjustment knob can make longitudinal flux core extend along direction to stretch, and longitudinal magnetic core coil is wound in adjust
The number of turn；
Primary coil and secondary coil are respectively wound around the magnetic core of E shaped iron cores.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, primary coil and secondary coil are respectively wound around the magnetic core at E shaped iron cores both ends.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, two parts of primary coil are respectively wound around the magnetic core at E shaped iron cores both ends, and two parts of secondary coil are respectively wound around E types
The magnetic core at iron core both ends.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the first coil for isolating clutter and the second coil are further included, and first coil and the second coil are wrapped in E shaped iron cores
Between magnetic core.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, the longitudinal magnetic core for being arranged on both ends is also equipped with adjusting knob, rotation of adjustment knob with the end that horizontal magnetic core is connected
Longitudinal magnetic core is made to extend along direction to stretch, to adjust the number of turn for being wound in magnetic core coil.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, primary coil and secondary coil are all connected to coil turn tester；
Display screen, the number of turn of real-time display coil are provided on coil turn tester.
Second aspect, the utility model embodiment additionally provide a kind of safety alarm device, including induction coil, alarm core
Piece, alarm and E type transformers as described in relation to the first aspect；
Induction coil generates inductive signal for connecting with the primary coil of E type transformers；
The secondary coil connection ac output end of E type transformers；
Alarm chip receives inductive signal, when inductive signal exceeds preset value, alarm chip output alarm enabling signal；
Alarm receives alarm enabling signal, and sends alarm according to alarm enabling signal.
With reference to second aspect, the utility model embodiment provides the first possible embodiment of second aspect,
In, alarm chip includes comparing unit and trigger element；
Comparing unit receives inductive signal, and by inductive signal compared with preset value；
When inductive signal exceeds preset value, trigger element output alarm enabling signal.
With reference to second aspect, the utility model embodiment provides second of possible embodiment of second aspect,
In, filter capacitor is connected between alarm chip and induction coil.
With reference to second aspect, the utility model embodiment provides the third possible embodiment of second aspect,
In, warning device includes buzzer siren and/or visual alarm.
The technical solution that the utility model embodiment provides brings following advantageous effect：The utility model embodiment provides
E type transformers in, including primary coil, secondary coil and E shaped iron cores, wherein, E shaped iron cores include：One horizontal magnetic core and
Three longitudinal magnetic cores；Three longitudinal magnetic cores are separately positioned on the both ends and centre position of horizontal magnetic core；It is arranged on centre position
Magnetic core can extend along direction and stretch, to adjust the number of turn for being wound in magnetic core coil；Primary coil and secondary coil twine respectively
It is wound on the magnetic core of E shaped iron cores.In the E type transformers that the utility model embodiment is provided, by adjusting the stroke of magnetic core,
And then change the number of turn of the coil of winding on it, to realize the purpose for changing voltage, electric current, meet circuit to changeable voltage
Demand.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and obtained in book, claims and attached drawing.
For the above-mentioned purpose of the utility model, feature and advantage is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 shows a kind of schematic diagram for E types transformer that the utility model embodiment one is provided；
Fig. 2 shows a kind of schematic diagram for E types transformer that the utility model embodiment one is provided；
Fig. 3 shows a kind of schematic diagram for safety alarm device that the utility model embodiment two is provided；
Fig. 4 shows the signal of alarm chip in a kind of safety alarm device that the utility model embodiment two is provided
Figure.
Specific embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The maximum of the coil turn of coiling is fixed on the magnetic core of current E type transformers, therefore, more than coil
During number of turn maximum, E type transformers tend not to neatly change voltage, electric current, for needing flexibly to change voltage, electric current
For circuit, the application of old-fashioned E types transformer has certain limitation.Based on this, the E types that the utility model embodiment provides
Transformer and safety alarm device can neatly change the winding of transformer, so as to change ac output voltage, meet electricity
Road is to the demand of changeable voltage.
For ease of understanding the present embodiment, first to a kind of E types transformer disclosed in the utility model embodiment
It describes in detail.
Embodiment one：
The utility model embodiment provides a kind of E types transformer, as shown in Figure 1, the E types transformer include primary coil,
Secondary coil and E shaped iron cores.
Wherein, E shaped iron cores include：One horizontal magnetic core and three longitudinal magnetic cores；Three longitudinal magnetic cores are separately positioned on horizontal stroke
To the both ends and centre position of magnetic core；The end that longitudinal magnetic core in centre position is connected with horizontal magnetic core is arranged on, is provided with tune
Save knob；Rotation of adjustment knob can make longitudinal flux core extend along direction to stretch, and longitudinal magnetic core coil is wound in adjust
The number of turn；Primary coil and secondary coil are respectively wound around the magnetic core of E shaped iron cores.
In the utility model embodiment, E shaped iron cores are made of a horizontal magnetic core and three longitudinal magnetic cores, in transverse magnetic
The both ends and centre position of core are each provided with a longitudinal magnetic core.Primary coil L1 and secondary coil L2 are respectively wound around E sections
The magnetic core at core both ends.From figure 1 it appears that the primary coil L1 of E type transformers is wrapped on the magnetic core in left side, it is secondary
Coil L2 is wrapped on the magnetic core on right side.The magnetic core for being arranged on centre position has one with the end set that horizontal magnetic core is connected
A adjusting knob rotates the adjusting knob longitudinal flux core can be made to extend along direction and stretch, so as to change on the longitudinal direction magnetic core
The number of turn of coil.
As shown in Fig. 2, in another embodiment, two parts of the primary coil L1 of this E type transformers are wound respectively
On the magnetic core at E shaped iron cores both ends, two parts of the secondary coil L2 of transformer are respectively wound around the magnetic core at E shaped iron cores both ends
On.And the longitudinal magnetic core for being arranged on both ends is also equipped with adjusting knob with the end that horizontal magnetic core is connected, and rotates adjusting rotation
Button can also equally make longitudinal magnetic core at both ends stretch, and adjust the size of its stroke, and the magnetic core is wrapped in so as to change
On coil the number of turn.
Specifically, adjusting knob is with the manual manual element turned.Can the rotation of manual continuous several times, maximum rotation angle
It can reach 360 °；Also position rotating etc. can be done.According to the difference of shape, circular knob or polygon rotation could be provided as
Button or indicator knob also or manual turntable etc., do not limit herein.In the utility model embodiment, adjusting can be set
Knob often turns over the corresponding coil turn changed of predetermined angle, for example, often rotating 30 degree, the corresponding coil turn changed is 30
Circle etc..
It is further that the E type transformers in the utility model embodiment further include the first coil for isolating clutter
L3 and the second coil L4, and first coil L3 and the second coil L4 are wrapped on the magnetic core among E shaped iron cores.
By setting first coil L3 and the second coil L4, primary coil L1 first with first coil L3, the second coil L4 into
Row electromagnetic induction, then electromagnetic induction is carried out by first coil L3, the second coil L4, so as to indirectly by electric energy from primary coil L1
It is transmitted to secondary coil L2.The clutter between primary coil L1 and secondary coil L2 can so be isolated, make the primary of grid side
The clutter generated on coil L1 is unlikely to propagate to secondary coil L2, to ensure the stabilization of ac output end.
In the present embodiment, the magnetic core among E shaped iron cores can extend along direction and stretch, to adjust first coil L3 and second
The number of turn that coil L4 is wound on the magnetic core among E shaped iron cores.By changing first coil L3 and the second coil L4 in centre
Effective turn on magnetic core can adjust the voltage ratio of primary coil L1 and secondary coil L2, and then adjust ac output end
Output voltage.
The collapsing length of magnetic core among E shaped iron cores can be adjusted manually, can also be by the way that driving mechanism is set to adjust automatically
Section.As a kind of preferred embodiment, adjusting knob is provided on E shaped iron cores, manually directly can adjust magnetic core
Stroke, to adjust the coil turn wound on the magnetic core.By changing the effective turn on the magnetic core, primary line can be adjusted
Voltage ratio between circle and secondary coil, and then adjust the output voltage of ac output end.
In the utility model embodiment, the magnetic core at E shaped iron cores both ends can also be also configured as to the magnetic of adjustable stroke
Core, specific regulative mode is the same with the adjusting process of the magnetic core in above-mentioned centre position, and details are not described herein.By above-mentioned adjustable
The setting of magnetic core is saved, transformer voltage is substantially increased and changes scope, improve the service efficiency of E type transformers.
In addition, the primary coil and secondary coil in the present embodiment are all connected to coil turn tester；Coil turn is surveyed
Display screen, the number of turn of real-time display coil are provided on examination instrument.
When concrete application, when changing the number of turn of primary coil and secondary coil by adjusting knob, it can utilize
The coil turn tester being connected with primary coil and secondary coil, its number of turn of real-time testing, and pass through display and shown to user
Show the current number of turn, user is facilitated to adjust the number of turn of primary coil and secondary coil to required value.
In the E type transformers that the utility model embodiment is provided, by adjusting the stroke of magnetic core, and then change winding
The number of turn of coil on it to realize the purpose for changing voltage, electric current, meets the needs of circuit is to changeable voltage.
Embodiment two：
The utility model embodiment provides a kind of safety alarm device, can be applied to family, office, factory etc. for electric field
Scape.As shown in figure 3, the safety alarm device includes induction coil L0, alarm chip, alarm and as described in embodiment one
E type transformers.
Induction coil L0 connects with the primary coil L1 of E type transformers, so the electric current of induction coil L0 and transformer
The size of current of primary coil is synchronous, and using the electric current of induction coil L0 as inductive signal.Time of E type transformers TB
Grade coil L2 connection ac output ends.The power end of alarm chip is connected to the both ends of primary coil L1, and in primary
Between wherein one end of coil L1 and alarm chip, the filter circuit of filter resistance R1 and filter capacitor C1 compositions is provided with.
Alarm chip receives inductive signal, when inductive signal exceeds preset value, alarm chip output alarm enabling signal.
Alarm receives the alarm enabling signal that alarm chip is sent, and sends alarm according to alarm enabling signal.
The safety alarm device that the utility model embodiment provides utilizes induction coil L0 generations and the primary line of transformer
The inductive signal of the size of current synchronization of circle, and by size of current (the i.e. electricity of the primary coil of transformer of induction coil L0
Flow size) alert if as failures such as power grid overvoltages, therefore the sensitivity of circuit protection can be improved, more efficient protection
Transmission line of electricity, so as to improve the security of transmission line of electricity.
In the present embodiment, the both ends of induction coil L0 connect two input terminals of alarm chip respectively, connect alarm chip
Receive the inductive signal that induction chip generates.Also, filter capacitor C0 is connected between one end of induction coil L0 and alarm chip,
During preventing that the amplitude of inductive signal is excessive, alarm chip is damaged.
The utility model embodiment use warning device, be it is a kind of for prevent or prevent certain event occur caused by after
Fruit sends alarm to remind or warn user to take the electronic product of the precautionary measures.
As a preferred embodiment, the warning device in the utility model embodiment includes buzzer siren.Work as alarm
When device receives the alarm enabling signal that alarm chip is sent, buzzer siren will send alarm sound, and user is prompted to take
The precautionary measures.
Further, visual alarm is further included in the warning device in the utility model embodiment.When warning device receives
During the alarm enabling signal sent to alarm chip, buzzer siren will send alarm light, prompt user that strick precaution is taken to arrange
It applies.
As shown in figure 4, the alarm chip of the present embodiment includes comparing unit and trigger element.Comparing unit receives sensing
Signal, and by inductive signal compared with preset value.When inductive signal exceeds preset value, trigger element output alarm starts
Signal.
As a preferred embodiment, multistable trigger is provided in trigger element, multistable trigger is also referred to as n stable states
Trigger is the further development of bistable state tentaculum.If input and remaining output terminal at different levels of every level-one of n amplifying stage
Between have dc-couple, then can obtain n stable state under certain item, and there was only level-one conducting in each stable state, and its
Remaining is turned off.In nonbinary counter circuit, the quick sound under a variety of different conditions can be realized using polymorphic trigger
Should, thus than flip and flop generator response speed faster.
By using comparing unit and trigger element with high sensitivity in the utility model embodiment, and triggering
Multistable trigger in unit is set, alarm chip is enable to be responded within 0.1 second, so as to send report within the extremely short time
Alert enabling signal, effectively protects power grid and transformer.
In the safety alarm device that the utility model embodiment provides, the first relay J1 and the second relay are further included
J2.First relay J1 can be used for the protective device of connection ac output end, for example the output terminal of protective device is connected first
The control coil of relay J1.The output terminal of first relay J1 is connected with the control coil of the second relay J2, the second relay
The output terminal of device J2 is connected with the primary coil L1 of E type transformers TB.
As a preferred embodiment, when the first relay J1 is closed type relay, i.e. control coil no power first after
The output of electric appliance J1 is in closure state.Meanwhile second relay J2 be normal-open type relay, i.e. control coil no power when
The output terminal of first relay J1 is off.
In the case of safety alarm device normal power supply, the control coil no power of the first relay J1, the first relay
The output of device J1 controls power supply can be by the first relay J1 to the control line of the second relay J2 in closure state
Circle power supply.The control coil of second relay J2 is in the case of energization, and output is in closure state, E types to be maintained to become
The primary coil L1 continued powers of depressor TB.
When protective device exports power-off signal, the control coil of the first relay J1 is powered, and makes the first relay J1's
Output terminal disconnects.Since the output terminal of the first relay J1 disconnects, the control coil power-off of the second relay J2 makes second
The output terminal of relay J2 disconnects, so as to cut off the connection of power grid and the primary coil L1 of E type transformers TB, with cut-out safety report
The protection of supply line is realized in the power supply of alarm device.
In the present embodiment, the first relay J1 uses closed type relay, and the second relay J2 uses normal-open type relay
It has further the advantage that：It, can be in the output terminal and the second relay of the first relay J1 in actual safety alarm device
The relay for multiple and different purposes of connecting between the control coil of J2, such as the relay of arc protection, overvoltage protection
Relay and the relay for short-circuit protection.These relays also all use closed type relay, and each relay
Control coil of the output terminal all with the second relay J2 connect, then when wherein any one relay disconnects, the can be made
The control coil power-off of two relay J2, so as to cut off the power supply of electric system.
The safety alarm device that the utility model embodiment two provides, the E type transformers provided with above-described embodiment one, tool
There is identical technical characteristic, so can also solve the technical issues of identical, reach identical technique effect.
The safety alarm device that the utility model embodiment provides utilizes induction coil L0 generations and the primary line of transformer
The inductive signal of the size of current synchronization of circle, and by the size of current of induction coil L0, that is, the primary line by transformer
Alert if of the size of current of circle as failures such as power grid overvoltages, therefore the sensitivity of circuit protection can be improved, more added with
Effect protection transmission line of electricity, so as to improve the security of transmission line of electricity.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the utility model.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or implying phase
To importance.
Finally it should be noted that：Embodiment described above is only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
It, still can be to the skill recorded in previous embodiment in the technical scope that the technical staff in art field discloses in the utility model
Art scheme, which is modified or can be readily occurred in, to be changed or carries out equivalent substitution to which part technical characteristic；And these modifications,
Variation is replaced, and the essence of appropriate technical solution is not made to depart from the spirit and model of the utility model embodiment technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of E types transformer, which is characterized in that including primary coil, secondary coil and E shaped iron cores；
Wherein, the E shaped iron cores include：One horizontal magnetic core and three longitudinal magnetic cores；
Described three longitudinal magnetic cores are separately positioned on the both ends and centre position of the horizontal magnetic core；
The end that longitudinal magnetic core in centre position is connected with the horizontal magnetic core is arranged on, is provided with adjusting knob；
Rotation of adjustment knob can make longitudinal magnetic core extend along direction to stretch, be wound on longitudinal magnetic core to adjust
The number of turn of coil；
The primary coil and secondary coil are respectively wound around the magnetic core of the E shaped iron cores.
2. E types transformer according to claim 1, which is characterized in that the primary coil and secondary coil difference
It is wrapped in the magnetic core at the E shaped iron cores both ends.
3. E types transformer according to claim 1, which is characterized in that two parts of the primary coil are respectively wound around
The magnetic core at the E shaped iron cores both ends, two parts of the secondary coil are respectively wound around the magnetic core at the E shaped iron cores both ends.
4. E types transformer according to claim 3, which is characterized in that further include to isolate clutter first coil and
Second coil, and the first coil and second coil are wrapped in the magnetic core among the E shaped iron cores.
5. E types transformer according to claim 4, which is characterized in that be arranged on longitudinal magnetic core at both ends and the transverse direction
The end of magnetic core connection is also equipped with adjusting knob, and rotating the adjusting knob can make longitudinal magnetic core extend along direction
It is flexible, to adjust the number of turn for being wound in the magnetic core coil.
6. according to claim 1-5 any one of them E type transformers, which is characterized in that the primary coil and secondary coil
It is all connected to coil turn tester；
Display screen, the number of turn of real-time display coil are provided on the coil turn tester.
7. a kind of safety alarm device, which is characterized in that including induction coil, alarm chip, alarm and such as claim 1
To 6 any one of them E type transformers；
The induction coil generates inductive signal for connecting with the primary coil of the E types transformer；
The secondary coil connection ac output end of the E types transformer；
The alarm chip receives the inductive signal, when the inductive signal exceeds preset value, the alarm chip output
Alarm enabling signal；
The alarm receives the alarm enabling signal, and sends alarm according to the alarm enabling signal.
8. safety alarm device according to claim 7, which is characterized in that the alarm chip include comparing unit and
Trigger element；
The comparing unit receives the inductive signal, and by the inductive signal compared with the preset value；
When the inductive signal exceeds preset value, the trigger element output alarm enabling signal.
9. safety alarm device according to claim 8, which is characterized in that the alarm chip and the induction coil it
Between be connected with filter capacitor.
10. safety alarm device according to claim 9, which is characterized in that the warning device includes buzzing alarm
Device and/or visual alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720731293.XU CN207381254U (en) | 2017-06-22 | 2017-06-22 | E types transformer and safety alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720731293.XU CN207381254U (en) | 2017-06-22 | 2017-06-22 | E types transformer and safety alarm device |
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| CN207381254U true CN207381254U (en) | 2018-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068370A (en) * | 2017-06-22 | 2017-08-18 | 中领世能（天津）科技有限公司 | E types transformer and safety alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068370A (en) * | 2017-06-22 | 2017-08-18 | 中领世能（天津）科技有限公司 | E types transformer and safety alarm device |
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