CN205081459U - Overcurrent protect device - Google Patents
Overcurrent protect device Download PDFInfo
- Publication number
- CN205081459U CN205081459U CN201520932275.9U CN201520932275U CN205081459U CN 205081459 U CN205081459 U CN 205081459U CN 201520932275 U CN201520932275 U CN 201520932275U CN 205081459 U CN205081459 U CN 205081459U
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- CN
- China
- Prior art keywords
- constantan wire
- relay
- protection circuit
- motor
- electric cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides an overcurrent protect device, including electric cabinet, protection circuit board, constantan wire, storage battery and motor, the one end of constantan wire and storage battery electricity are connected, the other end is connected with the motor is electric, protection circuit board changes with the electric current that the constantan wire electricity is connected in order to gather the constantan wire, the electric cabinet is connected with the relay, the break -make of relay actuation or disconnection and then control electric cabinet circuit, protection circuit board and relay be electric to be connected and according to the electric current change control relay actuation or the disconnection of constantan wire. Control is accurate, and is with low costs.
Description
Technical field
The utility model relates to a kind of overcurrent protective device using constantan wire.
Background technology
Motor operationally has individual rated current, does not allow to exceed rated current, not so can burn out motor.So some motor is just provided with overcurrent protection module, when electric current exceedes setting electric current time, motor auto-breaking, to protect motor.Existing overcurrent protection module complex structure, easily generates heat, and volume is large, and cost is high.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of overcurrent protective device; constantan wire is adopted on motor, to gather the size of motor operationally electric current by wire; then feed back to the break-make that protection circuit plate carries out control circuit, precise control, cost is low.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: a kind of overcurrent protective device, comprise electric cabinet, protection circuit plate, constantan wire, storage battery and motor, one end of described constantan wire is electrically connected with storage battery, the other end is electrically connected with motor, described protection circuit plate is electrically connected the curent change to gather constantan wire with constantan wire, described electric cabinet is connected with relay, the break-make of described relay adhesive or disconnection and then control electric cabinet circuit, described protection circuit plate is electrically connected with relay and according to the curent change control relay adhesive of constantan wire or disconnection.
As preferably, described protection circuit plate comprises control module and current acquisition module, and described control module is connected with constantan wire by current acquisition module, and described control module is connected with relay.
Beneficial effect:
The utility model adopts after technique scheme, and according to the characteristic of constantan wire, adopt constantan wire on motor, to gather the size of motor operationally electric current by wire, then feed back to the break-make that protection circuit plate carries out control circuit, precise control, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Be illustrated in figure 1 the preferred embodiment of a kind of overcurrent protective device of the utility model; it mainly comprises electric cabinet 1, protection circuit plate 2, constantan wire 3, storage battery 4 and motor 5; one end of constantan wire 3 is electrically connected with storage battery 4, the other end is electrically connected with motor 5; protection circuit plate 2 is electrically connected with constantan wire 3 curent change gathering constantan wire 3; electric cabinet 1 is connected with relay; relay on-off and then control adhesive or the disconnection of electric cabinet 1 circuit, protection circuit plate 2 is electrically connected with relay and according to the curent change control relay adhesive of constantan wire 3 or disconnection.Wherein, protection circuit plate 2 comprises control module and current acquisition module, and control module is connected with constantan wire 3 by current acquisition module, and control module is connected with relay.
This overcurrent protective device is according to the characteristic of constantan wire, and constantan wire to be connected on motor to gather the size of motor operationally electric current by wire, then feeds back to the break-make that protection circuit plate carries out controlling circuit on electric cabinet 1.
Claims (2)
1. an overcurrent protective device, it is characterized in that: comprise electric cabinet (1), protection circuit plate (2), constantan wire (3), storage battery (4) and motor (5), one end of described constantan wire (3) is electrically connected with storage battery (4), the other end is electrically connected with motor (5), described protection circuit plate (2) is electrically connected the curent change to gather constantan wire (3) with constantan wire (3), described electric cabinet (1) is connected with relay, the break-make of described relay adhesive or disconnection and then control electric cabinet (1) circuit, described protection circuit plate (2) is electrically connected with relay and according to the curent change control relay adhesive of constantan wire (3) or disconnection.
2. a kind of overcurrent protective device according to claim 1; it is characterized in that: described protection circuit plate (2) comprises control module and current acquisition module; described control module is connected with constantan wire (3) by current acquisition module, and described control module is connected with relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932275.9U CN205081459U (en) | 2015-11-20 | 2015-11-20 | Overcurrent protect device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520932275.9U CN205081459U (en) | 2015-11-20 | 2015-11-20 | Overcurrent protect device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205081459U true CN205081459U (en) | 2016-03-09 |
Family
ID=55433835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520932275.9U Active CN205081459U (en) | 2015-11-20 | 2015-11-20 | Overcurrent protect device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205081459U (en) |
-
2015
- 2015-11-20 CN CN201520932275.9U patent/CN205081459U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Jinhua Julong Hardware Tools Co.,Ltd. Assignor: ZHEJIANG RUNVA MECHANICAL & ELECTRICAL Co.,Ltd. Contract record no.: X2022330000335 Denomination of utility model: An overcurrent protection device Granted publication date: 20160309 License type: Common License Record date: 20220726 |