CN207134227U - A kind of adjustable change electrical equipment - Google Patents
A kind of adjustable change electrical equipment Download PDFInfo
- Publication number
- CN207134227U CN207134227U CN201720862751.3U CN201720862751U CN207134227U CN 207134227 U CN207134227 U CN 207134227U CN 201720862751 U CN201720862751 U CN 201720862751U CN 207134227 U CN207134227 U CN 207134227U
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- Prior art keywords
- resistance
- electrical equipment
- triode
- carbon brush
- run
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Abstract
The utility model discloses a kind of adjustable change electrical equipment; including insulation crust body; insulation crust intracoelomic cavity sets annular core; annular core side coiling primary coil; primary coil connects input supply terminal; annular core opposite side coiling secondary coil; secondary coil output end connects under-run/over-run protection device; secondary coil is slidably connected carbon brush; carbon brush connects motor by cursor slide, and the utility model is simple in construction, can realize to becoming freely adjusting for electrical equipment output voltage; also there is output protecting function simultaneously, it is ensured that become the safety of electrical equipment and load equipment.
Description
Technical field
Electrical equipment technical field is the utility model is related to, specially a kind of adjustable change electrical equipment.
Background technology
It is the device for changing alternating voltage using the principle of electromagnetic induction to become electrical equipment, and main member is primary coil, secondary
Level coil and iron core, major function have：Voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing (magnetic saturation transformer) etc.；
But it is all fixed voltage that in general, which becomes electrical equipment, it is impossible to adjusts voltage, it is impossible to adapt to all voltage requirements, to reach needs
Voltage, it is necessary to change and become electrical equipment, cause the wasting of resources, change cumbersome, influence the use of electricity；And existing change electrical equipment
Voltage output end does not possess output protecting device, once there is exception, easily burns out and becomes electrical equipment and load equipment.
Utility model content
The purpose of this utility model is to provide a kind of adjustable change electrical equipment, asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：A kind of adjustable change electrical equipment, including insulation are outer
Housing, the insulation crust intracoelomic cavity set annular core, the annular core side coiling primary coil, the primary coil
Input supply terminal, the annular core opposite side coiling secondary coil are connected, the secondary coil output end connection under-run/over-run is protected
Protection unit, the secondary coil are slidably connected carbon brush, and the carbon brush connects motor by cursor slide.
Preferably, the under-run/over-run protection device includes triode A, triode B, field-effect transistor, triode A current collections
Pole connects resistance E and resistance F tie points, resistance E other ends access power end, resistance F other ends ground connection, the triode B collection
Electrode connects resistance G and resistance H tie points, resistance G other ends access power end, resistance H other ends ground connection；Triode A launches
Pole connection resistance I one end, resistance I other ends connection field effect transistor gate, field-effect transistor grounded drain, source class pass through
Resistance J accesses power end, and source class is also connected with logic gates, and triode A is connected resistance C and resistance D with triode B base stage
Tie point, resistance D are connected in series resistance C, resistance B, resistance A, resistance A other ends connection alternating current pressure side, another terminations of resistance D
Ground.
Preferably, the carbon brush uses cylindrical structure, and the rear end of the carbon brush is provided with beam, and the beam is
Insulate beam.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model is simple in construction, wherein, secondary coil is slidably connected carbon brush, and carbon brush connects motor by cursor slide,
It can be realized using this structure to becoming freely adjusting for electrical equipment output voltage；Moreover, using cylindrical structure, the rear end of carbon brush is pacified
Equipped with beam, beam is insulation beam, and the friction type of carbon brush is changed into rolling friction, carbon brush resistance is reduced, carries
The stability of high voltage regulation.
(2) in the utility model, the under-run/over-run protection device of use has output protecting function, it is ensured that becomes electrical equipment and bears
Carry the safety of equipment.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model under-run/over-run protection device schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of adjustable change electrical equipment, including insulation crust
Body 1, the inner chamber of insulation crust body 1 set annular core 2, the side coiling primary coil 3 of annular core 2, the primary
Coil 3 connects input supply terminal, the opposite side coiling secondary coil 4 of annular core 2, the output end of secondary coil 4 connection
Under-run/over-run protection device 5, the secondary coil 4 are slidably connected carbon brush 6, and the carbon brush 6 passes through cursor slide 7 and connects motor 8；Using this
Structure can be realized to becoming freely adjusting for electrical equipment output voltage；Carbon brush 6 uses cylindrical structure, the rear end peace of the carbon brush 6
Equipped with beam 11, the beam 11 is insulation beam, and the friction type of carbon brush is changed into rolling friction, reduces carbon
Brush resistance, improve the stability of voltage-regulation.
In the utility model, under-run/over-run protection device include triode A 1b, triode B 2b, field-effect transistor 9, three
Pole pipe A 1b colelctor electrodes connect resistance E5a and resistance F6a tie points, and the resistance E5a other ends access power end, and resistance F6a is another
End ground connection, the triode B 2b colelctor electrodes connection resistance G7a and resistance H8a tie points, resistance G7a other ends access power supply
End, resistance H8a other ends ground connection；Triode A 1b emitter stages connection resistance I9a one end, the connection field-effect of the resistance I9a other ends
The grid of transistor 9, the grounded drain of field-effect transistor 9, source class access power end by resistance J10a, and source class is also connected with gate
Circuit 10, triode A 1b are connected resistance C3a and resistance D4a tie points with triode B 2b base stage, and resistance D4a series connection connects
Connecting resistance C3a, resistance B2a, resistance A1a, resistance A1a other ends connection alternating current pressure side, resistance D4a other ends ground connection.Work as place
When overvoltage, triode A 1b conductings, triode B 2b cut-offs, field-effect transistor conducting, logic gates output is low electricity
It is flat, drive signal is closed, becomes electrical equipment and overvoltage protection state is switched to by normal operating conditions, when input voltage is too low, triode A
1b ends, and triode B 2b conductings, field-effect transistor conducting, field-effect transistor source output voltage is low level, logic
Gate circuit output is low level, closes drive signal, becomes electrical equipment and switchs to under-voltage protection state by normal operating conditions, this practicality is new
In type, the under-run/over-run protection device of use has output protecting function, it is ensured that becomes the safety of electrical equipment and load equipment.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of adjustable change electrical equipment, including insulation crust body (1), it is characterised in that：Insulation crust body (1) inner chamber is set
Annular core (2), annular core (2) the side coiling primary coil (3), the primary coil (3) connect input supply terminal,
Annular core (2) the opposite side coiling secondary coil (4), secondary coil (4) output end connect under-run/over-run protection device
(5), the secondary coil (4) is slidably connected carbon brush (6), and the carbon brush (6) passes through cursor slide (7) and connects motor (8).
A kind of 2. adjustable change electrical equipment according to claim 1, it is characterised in that：The under-run/over-run protection device includes three
Pole pipe A (1b), triode B (2b), field-effect transistor (9), triode A (1b) colelctor electrode connection resistance E (5a) and resistance F
(6a) tie point, resistance E (5a) other end access power end, resistance F (6a) other end ground connection, triode B (2b) current collection
Pole connection resistance G (7a) and resistance H (8a) tie point, resistance G (7a) other end access power end, resistance H (8a) another termination
Ground；Triode A (1b) emitter stage connects resistance I (9a) one end, and resistance I (9a) other end connects field-effect transistor (9) grid,
Field-effect transistor (9) grounded drain, source class access power end by resistance J (10a), and source class is also connected with logic gates
(10), triode A (1b) is connected resistance C (3a) and resistance D (4a) tie point, resistance D (4a) strings with triode B (2b) base stage
Connection connection resistance C (3a), resistance B (2a), resistance A (1a), resistance A (1a) other end connection alternating current pressure side, resistance D (4a) are another
One end is grounded.
A kind of 3. adjustable change electrical equipment according to claim 1, it is characterised in that：The carbon brush (6) uses cylinder knot
Structure, the rear end of the carbon brush (6) are provided with beam (11), and the beam (11) is insulation beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862751.3U CN207134227U (en) | 2017-06-27 | 2017-06-27 | A kind of adjustable change electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862751.3U CN207134227U (en) | 2017-06-27 | 2017-06-27 | A kind of adjustable change electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134227U true CN207134227U (en) | 2018-03-23 |
Family
ID=61634326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720862751.3U Expired - Fee Related CN207134227U (en) | 2017-06-27 | 2017-06-27 | A kind of adjustable change electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134227U (en) |
-
2017
- 2017-06-27 CN CN201720862751.3U patent/CN207134227U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20190627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |