CN207009386U - A kind of protection device of electric component - Google Patents
A kind of protection device of electric component Download PDFInfo
- Publication number
- CN207009386U CN207009386U CN201720895948.7U CN201720895948U CN207009386U CN 207009386 U CN207009386 U CN 207009386U CN 201720895948 U CN201720895948 U CN 201720895948U CN 207009386 U CN207009386 U CN 207009386U
- Authority
- CN
- China
- Prior art keywords
- conducting strip
- body case
- rectangular body
- connecting wire
- electromagnet
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of protection device of electric component; including rectangular body case; cuboid cover top portion is provided with top cover; the first connecting wire, electromagnet, the first conducting strip, the second conducting strip and the second connecting wire are provided with the rectangular body case; first connecting wire, electromagnet and the first conducting strip are sequentially connected; second conducting strip is connected with the second connecting wire, and spacing is provided between the first conducting strip and the second conducting strip；Top cover above spacing is provided with guide pillar, and guide pillar bottom is arranged with movable cylinder, back-moving spring is provided between movable cylinder and top cover；The outer wall of movable cylinder is provided with connecting plate, and connecting plate is provided with magnetic conductor；Connection sheet is provided with below spacing, the upper surface at connection sheet both ends is provided with haptic element；The lower surface of connection sheet is provided with push rod, and the bottom of rectangular body case is provided with resilient sleeve, and the lower end of push rod is interference fitted through resilient sleeve and with resilient sleeve.The present apparatus is simple in construction, and manufacturing cost is low, and easy to operate, and protecting effect is good.
Description
Technical field
Electrical equipment is the utility model is related to, especially a kind of protection device of electric component.
Background technology
Each electric component has the limitation such as specified voltage, electric current, if during work, passes through electric component
Electric current it is excessive, it is easy to cause electric component scaling loss, or even fire etc. occur.In order to avoid there are such case, many electricity
Gas part is equipped with overload protection arrangement, existing overload protection arrangement have it is a variety of, such as Application No. 201510557517.5
Application for a patent for invention, these existing overload protection arrangements it is complicated, add manufacture difficulty, cost is all higher.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of structure is simpler, manufacturing cost is low, and can
Ensure the protection device of the electric component of preferable protecting effect.
Technical scheme is used by the utility model solves its technical problem：A kind of protection device of electric component, bag
The rectangular body case of insulation is included, the cuboid cover top portion is provided with dismountable top cover, the inside of the rectangular body case
Pass through be disposed with the first connecting wire, electromagnet, the first conducting strip, the second conducting strip and second connection lead
Line, first connecting wire and the second connecting wire pass the side wall at rectangular body case both ends, and the first connecting wire, electromagnetism
Iron and the first conducting strip are sequentially connected, and the second conducting strip is connected with the second connecting wire, first conducting strip and the second conduction
Spacing is provided between piece；The lower surface of top cover above the spacing is provided with vertical guide pillar, the guide pillar bottom it is outer
Surface is arranged with the movable cylinder of insulation, and back-moving spring, the back-moving spring are provided between the upper end of the movable cylinder and top cover
Winding is arranged on the outer wall of guide pillar；The outer wall of movable cylinder is fixedly installed horizontal connecting plate, and the lower surface of the connecting plate is set
Magnetic conductor is equipped with, the magnetic conductor is located at the top of electromagnet；The connection sheet of conduction, the company are provided with below the spacing
The upper surface at contact pin both ends is provided with haptic element, and lower surface of two haptic elements respectively with the first conducting strip and the second conducting strip connects
Touch；The lower surface of connection sheet is provided with insulation and vertical push rod, and the bottom of the rectangular body case is provided with through hole, described logical
Resilient sleeve is fixedly installed in hole, the lower end of the push rod is interference fitted through resilient sleeve and with resilient sleeve；Under the movable cylinder
The distance of connection sheet upper surface is held to be less than magnetic conductor to the distance of electromagnet.
Further, the rectangular body case, top cover, guide pillar, movable cylinder, connecting plate and push rod are plastic material.
Further, the top cover is connected by screw with the top of rectangular body case.
Further, the side wall of the rectangular body case is provided with one group of thermal vias.
Further, the resilient sleeve is rubber sleeve.
The beneficial effects of the utility model are：In use, by the first connecting wire and the second connecting wire by the present apparatus
It is connected in series with electric component, electromagnet produces magnetic field, attracts magnetic conductor to move down, when electric current is normal, electromagnet is with leading
Magnetic force between magnet is not big enough, and magnetic conductor does not contact with electromagnet, and movable cylinder does not also contact with connection sheet, when electric current is higher than peace
During total head, magnetic field intensity increase caused by electromagnet, magnetic force increases, and magnetic conductor is moved downward and contacted with electromagnet, meanwhile, lead
Magnet is moved down by connecting plate drive activity cylinder, and back-moving spring elongation, movable cylinder promotes connection sheet to move downward, haptic element from
The first conducting strip and the second conducting strip are opened, device disconnects, and electrical equipment power-off, avoids losing magnetic by high current scaling loss, electromagnet
Property, movable cylinder resets in the presence of back-moving spring, because push rod and resilient sleeve are interference fitted, in the absence of external forces,
Connection sheet will not reset, and circuit remains open, and after circuit has overhauled, manual-up promotion push rod, make haptic element again with first
Conducting strip and the contact of the second conducting strip, circuit turn-on.The present apparatus is simple in construction, and manufacturing cost is low, and easy to operate, protecting effect
It is good.
Brief description of the drawings
Fig. 1 is schematic cross-sectional view of the present utility model.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of protection device of electric component of the present utility model, include the rectangular body case 1 of insulation, institute
State the rectangular top of body case 1 and be provided with dismountable top cover 2, the inside of the rectangular body case 1 passes through successively
The first connecting wire 4, electromagnet 3, the first conducting strip 5, the second conducting strip 6 and the second connecting wire 7 are provided with, described first connects
Connect the side wall that the connecting wire 7 of wire 4 and second passes the rectangular both ends of body case 1, and the first connecting wire 4, electromagnet 3 and first
Conducting strip 5 is sequentially connected, and the second conducting strip 6 is connected with the second connecting wire 7, the conducting strip 6 of the first conducting strip 5 and second it
Between be provided with spacing 9；The lower surface of the top cover 2 of the top of the spacing 9 is provided with vertical guide pillar 8, the bottom of guide pillar 8 it is outer
Surface is arranged with the movable cylinder 10 of insulation, and back-moving spring 11 is provided between the upper end of the movable cylinder 10 and top cover 2, described multiple
Position spring 11 winds the outer wall for being arranged on guide pillar 8；The outer wall of movable cylinder 10 is fixedly installed horizontal connecting plate 14, the connection
The lower surface of plate 14 is provided with magnetic conductor 15, and the magnetic conductor 15 is located at the top of electromagnet 3；The lower section of the spacing 9 is set
There is a connection sheet 12 of conduction, the upper surface at the both ends of connection sheet 12 is provided with haptic element 13, and two haptic elements 13 are respectively with first
Conducting strip 5 contacts with the lower surface of the second conducting strip 6；The lower surface of connection sheet 12 is provided with insulation and vertical push rod 16, institute
The bottom for stating rectangular body case 1 is provided with through hole, and resilient sleeve 17 is fixedly installed in the through hole, and the lower end of the push rod 16 is worn
Cross resilient sleeve 17 and be interference fitted with resilient sleeve 17；The distance of the lower end of movable cylinder 10 to the upper surface of connection sheet 12 is less than magnetic conduction
Body 15 arrives the distance of electromagnet 3.
In use, the present apparatus and electric component are connected in series by the first connecting wire 4 and the second connecting wire 7, electricity
Magnet 3 produces magnetic field, attracts magnetic conductor 15 to move down, when electric current is normal, the magnetic force between electromagnet 3 and magnetic conductor 15 is not
Enough big, magnetic conductor 15 does not contact with electromagnet 3, and movable cylinder 10 does not also contact with connection sheet 12, when electric current is higher than safety value, electricity
Magnetic field intensity increase caused by magnet 3, magnetic force increase, magnetic conductor 15 are moved downward and contacted with electromagnet 3, meanwhile, magnetic conductor
15 are moved down by the drive activity cylinder 10 of connecting plate 14, and back-moving spring 11 extends, and movable cylinder 10 promotes connection sheet 12 to transport downwards
Dynamic, haptic element 13 leaves the first conducting strip 4 and the second conducting strip 7, and device disconnects, and electrical equipment power-off, avoids by high current scaling loss,
Electromagnet loses magnetism, and movable cylinder 10 resets in the presence of back-moving spring 11, because push rod 16 and resilient sleeve 17 are interference fitted,
In the absence of external forces, connection sheet 12 will not reset, and circuit remains open, after circuit has overhauled, manual-up promotion
Push rod 16, haptic element 13 is set to be contacted again with the first conducting strip 4 and the second conducting strip 7, circuit turn-on.The present apparatus is simple in construction, system
Cause low and easy to operate, protecting effect is good.
Rectangular body case 1, top cover 2, guide pillar 8, movable cylinder 10, connecting plate 14 and push rod 16 can be used arbitrarily with sufficiently strong
The existing isolation material of degree, it is preferred that rectangular body case 1, top cover 2, guide pillar 8, movable cylinder 10, connecting plate 14 and the push rod 16
It is plastic material.
Preferably, the top cover 2 is connected by screw with the top of rectangular body case 1.
The side wall of the rectangular body case 1 is provided with one group of thermal vias 18, is easy to electromagnet 3 to radiate.
Preferably, the resilient sleeve 17 is rubber sleeve.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (5)
- A kind of 1. protection device of electric component, it is characterised in that：Rectangular body case (1) including insulation, outside the cuboid Dismountable top cover (2) is provided with the top of shell (1), the inside of the rectangular body case (1), which passes through, to be set gradually There are the first connecting wire (4), electromagnet (3), the first conducting strip (5), the second conducting strip (6) and the second connecting wire (7), it is described First connecting wire (4) and the second connecting wire (7) pass the side wall at rectangular body case (1) both ends, and the first connecting wire (4), electromagnet (3) and the first conducting strip (5) are sequentially connected, and the second conducting strip (6) is connected with the second connecting wire (7), described Spacing (9) is provided between first conducting strip (5) and the second conducting strip (6)；The following table of top cover (2) above the spacing (9) Face is provided with vertical guide pillar (8), and the outer surface of guide pillar (8) bottom is arranged with the movable cylinder (10) of insulation, the activity Back-moving spring (11) is provided between the upper end of cylinder (10) and top cover (2), back-moving spring (11) winding is arranged on guide pillar (8) Outer wall；The outer wall of movable cylinder (10) is fixedly installed horizontal connecting plate (14), and the lower surface of the connecting plate (14) is set There is magnetic conductor (15), the magnetic conductor (15) is located at the top of electromagnet (3)；Conduction is provided with below the spacing (9) Connection sheet (12), the upper surface at connection sheet (12) both ends are provided with haptic element (13), and two haptic elements (13) are respectively with first Conducting strip (5) contacts with the lower surface of the second conducting strip (6)；The lower surface of connection sheet (12) is provided with insulation and vertical push rod (16), the bottom of the rectangular body case (1) is provided with through hole, and resilient sleeve (17) is fixedly installed in the through hole, described to push away The lower end of bar (16) is interference fitted through resilient sleeve (17) and with resilient sleeve (17)；Movable cylinder (10) lower end is to connection sheet (12) distance of upper surface is less than the distance that magnetic conductor (15) arrives electromagnet (3).
- A kind of 2. protection device of electric component as claimed in claim 1, it is characterised in that：The rectangular body case (1), top It is plastic material to cover (2), guide pillar (8), movable cylinder (10), connecting plate (14) and push rod (16).
- A kind of 3. protection device of electric component as claimed in claim 1, it is characterised in that：The top cover (2) passes through screw It is connected with the top of rectangular body case (1).
- A kind of 4. protection device of electric component as claimed in claim 1, it is characterised in that：The rectangular body case (1) Side wall is provided with one group of thermal vias (18).
- A kind of 5. protection device of electric component as claimed in claim 1, it is characterised in that：The resilient sleeve (17) is rubber Set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720895948.7U CN207009386U (en) | 2017-07-21 | 2017-07-21 | A kind of protection device of electric component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720895948.7U CN207009386U (en) | 2017-07-21 | 2017-07-21 | A kind of protection device of electric component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009386U true CN207009386U (en) | 2018-02-13 |
Family
ID=61455644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720895948.7U Expired - Fee Related CN207009386U (en) | 2017-07-21 | 2017-07-21 | A kind of protection device of electric component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517936A (en) * | 2019-09-06 | 2019-11-29 | 河南普润仪器设备有限公司 | A kind of quick response formula AC fuse |
-
2017
- 2017-07-21 CN CN201720895948.7U patent/CN207009386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517936A (en) * | 2019-09-06 | 2019-11-29 | 河南普润仪器设备有限公司 | A kind of quick response formula AC fuse |
| CN110517936B (en) * | 2019-09-06 | 2021-07-02 | 绍兴阔源机械科技有限公司 | Quick response type alternating current fuse |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20180721 |