CN207994605U - A kind of device for avoiding the air switch Frequent trip under heavy current impact - Google Patents
A kind of device for avoiding the air switch Frequent trip under heavy current impact Download PDFInfo
- Publication number
- CN207994605U CN207994605U CN201820172232.9U CN201820172232U CN207994605U CN 207994605 U CN207994605 U CN 207994605U CN 201820172232 U CN201820172232 U CN 201820172232U CN 207994605 U CN207994605 U CN 207994605U
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- CN
- China
- Prior art keywords
- air switch
- shell mechanism
- avoiding
- under heavy
- heavy current
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- 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 discloses a kind of devices for avoiding the air switch Frequent trip under heavy current impact, including shell mechanism, contact, connecting plate, insulating layer, scolding tin, lead and NTC thermistor, in the front of shell mechanism, heat emission hole is both provided on reverse side, four corner positions of shell mechanism are provided with insulated column, increase the gap of protective device and air switch, it radiates convenient for protective device, NTC thermistor is arranged in the inside of shell mechanism, one end of lead is connected to using scolding tin on the electrode of NTC thermistor, the other end of lead is pierced by from insulating layer, and contact portion, it is connected by the power end of contact and air switch.The utility model overcomes the problems, such as that toroidal transformer and alternating current generator booting dash current are big, can effectively inhibit dash current excessive, lead to air switch trip problem, air switch effective protection circuit safety is enable reliably to run.
Description
Technical field
The utility model is related to electric fields, more specifically, are related to a kind of for avoiding the air under heavy current impact
Switch the device of Frequent trip.
Background technology
The booting dash current of high-power annular transformer and part alternating current machine is all very big, the air switch electric current of selection
Deficiency, in the moment of booting, it is easy to lead to its tripping；Selection can solve trip problem using the air switch of high current, but
Protective effect is not achieved again.
For example, the Chinese granted patent of Publication No. CN206422515U discloses a kind of surge suppressor, including power supply
Circuit is used for external voltage input circuit, and to external output voltage signal after input voltage progress steady pressure treatment；Square wave occurs
Circuit, the voltage signal for receiving the power supply circuit output and the corresponding square-wave signal for generating fixed frequency；Booster circuit,
Square-wave signal for receiving side's wave generation circuit and by output voltage signal after amplifier；Voltage-suppressing circuit is used
It is suppressed in preset range in the voltage signal for exporting the booster circuit and exports supply external circuit again.The utility model is real
Example is applied by adjusting first resistor, second resistance, the first zener diode, the second zener diode and external zener diode
Parameter size, it is ensured that product comes interim in surge pulse, and output voltage is maintained in the range of demand.But this is specially
Technical solution still has defect disclosed in the specification of profit, cannot solve under heavy current impact while take into account air switch guarantor
Protect and avoid frequently unnecessarily trip problem etc., this defect are those skilled in the art always in the problem of thinking.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of for avoiding under heavy current impact
The device of air switch Frequent trip overcomes the problems, such as that toroidal transformer and alternating current generator booting dash current are big, can effectively inhibit
Dash current is excessive, leads to air switch trip problem, and air switch effective protection circuit safety is enable reliably to run.
The purpose of this utility model is achieved through the following technical solutions：One kind is for avoiding under heavy current impact
The device of air switch Frequent trip, including protection location device, the protection location device include shell mechanism, contact, company
Fishplate bar, insulating layer, scolding tin and lead and NTC thermistor are both provided with heat dissipation on the front of the shell mechanism, reverse side
Hole is provided with insulated column in four corner positions of the shell mechanism, and the NTC thermistor is arranged in the shell mechanism
Inside, one end of the lead is connected to using scolding tin on the electrode of NTC thermistor, and the other end of the lead is from insulation
Layer is pierced by, and the contact portion, is connected by the power end of the contact and air switch.
Further, including fixing piece, the fixing piece are arranged on shell mechanism.
Further, the shell mechanism includes the first shell mechanism and second housing structure, will by the fixing piece
First shell links together with second housing.
Further, the fixing piece includes screw and screw hole, by screw and screw hole by the first shell mechanism and second
Shell mechanism is fixed together.
Further, the connecting plate is tin plate.
Further, the contact is copper contact.
Further, the shell mechanism includes the shell mechanism of plastic material.
Further, the heat emission hole is circular louvre.
Further, the insulated column is hollow insulated column.
The utility model has the beneficial effects that：
(1) the utility model passes through shell mechanism, contact, connecting plate, insulating layer, scolding tin and lead and NTC thermistor
Deng, can overcome the problems, such as toroidal transformer and alternating current generator booting dash current it is big, can effectively inhibit dash current excessive, cause
Air switch trip problem enables air switch effective protection circuit safety reliably to run, and increases protective device and is opened with air
The gap of pass is radiated convenient for protective device.It is especially useful in toroidal transformer, since the magnetic circuit of toroidal transformer is to close completely
It closes, magnetic resistance very little, starup current is 3-8 times of transformer full-load current, this can be solved the problems, such as using the utility model.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the shell mechanism schematic diagram in the utility model.
In figure, 125- insulated columns.
Specific implementation mode
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), is removed
It non-specifically describes, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, often
A feature is an example in a series of equivalent or similar characteristics.
Specific embodiment of the utility model is described more fully below, it should be noted that the embodiments described herein is served only for
For example, being not intended to limit the utility model.In the following description, in order to provide the thorough understanding to the utility model,
Elaborate a large amount of specific details.It will be apparent, however, to one skilled in the art that：These certain details need not be used
It saves to carry out the utility model.In other instances, in order to avoid obscuring the utility model, well known circuit is not specifically described
Deng.
Such as Fig. 1, shown in 2, a kind of device for avoiding the air switch Frequent trip under heavy current impact, including protection
Cell arrangement, the protection location device include shell mechanism, contact, connecting plate, insulating layer, scolding tin and lead and NTC temperature-sensitives
Resistance is both provided with heat emission hole on the front of the shell mechanism, reverse side, is set in four corner positions of the shell mechanism
It is equipped with insulated column, the NTC thermistor is arranged in the inside of the shell mechanism, and one end of the lead is connected using scolding tin
On the electrode of NTC thermistor, the other end of the lead is pierced by from insulating layer, and the contact portion, is touched by described
Point is connect with the power end of air switch.
Optionally, including fixing piece, the fixing piece are arranged on shell mechanism.
Optionally, the shell mechanism includes the first shell mechanism and second housing structure, by the fixing piece by institute
The first shell is stated to link together with second housing.
Optionally, the fixing piece includes screw and screw hole, will be outside the first shell mechanism and second by screw and screw hole
Shell structure is fixed together.
Optionally, the connecting plate is tin plate.
Optionally, the contact is copper contact.
Optionally, the shell mechanism includes the shell mechanism of plastic material.
Optionally, the heat emission hole is circular louvre.
Optionally, the insulated column 125 is hollow insulated column 125.
Remaining technical characteristic in the present embodiment, those skilled in the art can flexibly be selected according to actual conditions
With with to meet different specific actual demands.It will be apparent, however, to one skilled in the art that：It need not use
These specific details carry out the utility model.In other instances, in order to avoid obscuring the utility model, public affairs are not specifically described
The composition known, structure or component limit technical protection in the claimed technical solution of claims of the utility model
Within the scope of.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " installation ", " phase
Even ", " connection " is broader sense, and those skilled in the art should broadly understood.For example, it may be fixedly connected, it can also
It is flexible connection, or is entirely connected, or locally connect, can be mechanical connection, can also be to be electrically connected, can be straight
It connects connected, can also be to be indirectly connected with by intermediary, the connection etc. inside two elements is can also be, for this field
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be, that is, word language
Expression can be flexibly corresponding with the implementation of actual techniques, the table of the word language (including attached drawing) of the specification of the utility model
Up to any single restricted explanation not constituted to claim.
Changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then all should be in this reality
In protection domain with novel appended claims.In the above description, it in order to provide the thorough understanding to the utility model, explains
A large amount of specific details are stated.It will be apparent, however, to one skilled in the art that：These specific details need not be used
To carry out the utility model.In other instances, in order to avoid obscuring the utility model, well known technology, example are not specifically described
It such as constructs details, operating condition and other technical conditions etc..
Claims (9)
1. a kind of device for avoiding the air switch Frequent trip under heavy current impact, which is characterized in that single including protection
Element apparatus, the protection location device include shell mechanism, contact, connecting plate, insulating layer, scolding tin and lead and NTC temperature-sensitive electricity
Resistance, heat emission hole is both provided on the front of the shell mechanism, reverse side, is arranged in four corner positions of the shell mechanism
There are insulated column, the NTC thermistor to be arranged in the inside of the shell mechanism, one end of the lead is connected to using scolding tin
On the electrode of NTC thermistor, the other end of the lead is pierced by from insulating layer, and the contact portion, passes through the contact
It is connect with the power end of air switch.
2. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, including fixing piece, the fixing piece is arranged on shell mechanism.
3. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 2,
It is characterized in that, the shell mechanism includes the first shell mechanism and second housing structure, by fixing piece by first shell
It links together with second housing.
4. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 3,
It is characterized in that, fixing piece includes screw and screw hole, is fixed the first shell mechanism and second housing structure by screw and screw hole
Together.
5. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, the connecting plate is tin plate.
6. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, the contact is copper contact.
7. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, the shell mechanism includes the shell mechanism of plastic material.
8. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, the heat emission hole is circular louvre.
9. a kind of device for avoiding the air switch Frequent trip under heavy current impact according to claim 1,
It is characterized in that, the insulated column is hollow insulated column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172232.9U CN207994605U (en) | 2018-01-31 | 2018-01-31 | A kind of device for avoiding the air switch Frequent trip under heavy current impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172232.9U CN207994605U (en) | 2018-01-31 | 2018-01-31 | A kind of device for avoiding the air switch Frequent trip under heavy current impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207994605U true CN207994605U (en) | 2018-10-19 |
Family
ID=63822985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820172232.9U Expired - Fee Related CN207994605U (en) | 2018-01-31 | 2018-01-31 | A kind of device for avoiding the air switch Frequent trip under heavy current impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207994605U (en) |
-
2018
- 2018-01-31 CN CN201820172232.9U patent/CN207994605U/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: 20181019 Termination date: 20220131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |