CN207234395U - A kind of power source surge protector - Google Patents
A kind of power source surge protector Download PDFInfo
- Publication number
- CN207234395U CN207234395U CN201720401721.2U CN201720401721U CN207234395U CN 207234395 U CN207234395 U CN 207234395U CN 201720401721 U CN201720401721 U CN 201720401721U CN 207234395 U CN207234395 U CN 207234395U
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- pin
- varistor
- surge protector
- tripping mechanism
- power source
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Abstract
The utility model embodiment discloses a kind of power source surge protector, is connected on by its input terminal L ends, N-terminal and PE ends, and output terminal L ' ends, N ' ends and PE ' ends in supply line；Including tripping mechanism, varistor and discharge tube；First pin of tripping mechanism is electrically connected with L ends, and the three-prong of tripping mechanism is electrically connected with L ' ends；One end of varistor is electrically connected with the second pin of tripping mechanism, and the other end is electrically connected with N-terminal；L ' ends are used to connect load；When varistor fault-free, the first pin and the three-prong connection of tripping mechanism；When varistor failure, the first pin of tripping mechanism and three-prong disconnect.When the power source surge protector fault-free; surge protection can be provided for load; and when power source surge protector failure; the first pin of tripping mechanism and three-prong disconnect; it can be achieved to loading without output; ensure the timely power-off loaded in Surge Protector failure, prevent the damage to load.
Description
Technical field
Electronic Protection Line technology field is the utility model is related to, more particularly to a kind of power source surge protector.
Background technology
Power source surge protector is indispensable a kind of device in electronic equipment lightning protection, it sets for various electronics
Standby, instrument and meter, communication line provide the electronic device of security protection.When in the electric loop or communication line because external world
When interference produces peak current or voltage suddenly, power source surge protector can turn on shunting within the extremely short time, so that
Avoid damage of the surge to other equipment in circuit.For traditional power source surge protector in failure, circuit is still defeated to loading
Go out.
Therefore, how a kind of power source surge protector is provided, without output, can ensure the peace of load to loading in failure
Entirely, it is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of power source surge protector, can in failure to load without output, from
And ensure the safety of load.
In order to solve the above technical problems, the utility model provides following technical solution：
A kind of power source surge protector, passes through its input terminal L ends, N-terminal and PE ends, and output terminal L ' ends, N ' ends and PE '
End is connected in supply line.
The power source surge protector includes：Tripping mechanism, varistor and discharge tube；
First pin of tripping mechanism is electrically connected with the L ends；The tripping mechanism three-prong and the L ' ends electricity
Connection；First pin of varistor is electrically connected with second pin of tripping mechanism, second pin of varistor with
The N-terminal is electrically connected；The both ends of the discharge tube are electrically connected with the N-terminal and the PE ends respectively；The N-terminal is held with the N '
It is electrically connected, the PE ends are electrically connected with the PE ' ends；L ' the ends are used to connect load；
Second pin of tripping mechanism is used to monitor varistor state, described when the varistor fault-free
The second pin of tripping mechanism is connected with first pin of varistor, and first pin of tripping mechanism and three-prong connect
It is logical；When the varistor failure, the connecting pin of second pin of tripping mechanism and first pin of varistor takes off
Button, first pin of tripping mechanism and three-prong disconnect.
More preferably, which further includes：It is arranged between the first pin of the L ends and the tripping mechanism
Fuse.
More preferably, which further includes：Fault cues module, one end of the fault cues module and institute
The electrical connection of tripping mechanism three-prong is stated, the other end of the fault cues module and the N ' ends are electrically connected.
More preferably, the fault cues module is LED light.
More preferably, second pin of tripping mechanism is welded by eutectic solder with first pin of varistor and connected
Connect, when the varistor, which breaks down, produces temperature rise, second pin of tripping mechanism and the varistor the
The welded ends of one pin are because eutectic solder melts or melts and threads off, first pin of tripping mechanism and three-prong
Disconnect.
More preferably, the tripping mechanism includes mechanism box body, sliding block, departs from shrapnel and spring, one end of the spring and
The mechanism box body connection, the other end of the spring are connected with the sliding block, and the sliding block is crushed under the disengaging shrapnel,
The first end for departing from shrapnel is equipped with first pin at connection L ends, the second end for departing from shrapnel and the varistor
First pin is welded to connect in the eutectic welding junction of the mechanism box body, and the force direction of the spring is the disengaging bullet
Piece and the separated direction of eutectic welding contact, the varistor is equipped with and first pin is electrically connected and is used to bear with the external world
The three-prong of series connection is carried, the varistor is equipped with the second pin, second pin away from one end of first pin
Connected with the discharge tube.
More preferably, the varistor is arranged on the mechanism box body, the varistor and it is described disengaging shrapnel it
Between be equipped with partition, the partition, which is equipped with, holds the through hole that first pin of varistor passes through.
More preferably, which further includes：Surge Protector housing, the side wall of the Surge Protector housing
It is equipped with the through hole passed through for L ends, N-terminal, PE ends, L ' ends, N ' ends and PE ' end lines.
More preferably, the side wall of the Surge Protector housing, which is equipped with, is used for the fixation ear that screw is fixed.
More preferably, which further includes：Surge Protector housing described in embedding and the Surge Protector
The epoxy resin portion or silica gel portion for IP67 water proof and dust proof grades of each component in housing.
Compared with prior art, above-mentioned technical proposal has the following advantages：
A kind of power source surge protector that the utility model embodiment is provided, by its input terminal L ends, N-terminal and PE ends,
And output terminal L ' ends, N ' ends and PE ' ends are connected in supply line；Including tripping mechanism, varistor and discharge tube；It is described
First pin of tripping mechanism is electrically connected with the L ends；The three-prong of the tripping mechanism is electrically connected with the L ' ends；It is described
The first pin of varistor is electrically connected with second pin of tripping mechanism, second pin of varistor and N-terminal electricity
Connection；The both ends of the discharge tube are electrically connected with the N-terminal and the PE ends respectively；The N-terminal is electrically connected with the N ' ends；Institute
PE ends are stated to be electrically connected with the PE ' ends；L ' the ends are used to connect load；Second pin of tripping mechanism is used to monitor pressure-sensitive
Resistance states, when the varistor fault-free, second pin of tripping mechanism connects with first pin of varistor
Connect, the first pin of tripping mechanism and the three-prong connection；When the varistor failure, the tripping mechanism second is managed
The connecting pin of foot and first pin of varistor is threaded off, and first pin of tripping mechanism and three-prong disconnect.At this
In technical solution, the tripping mechanism with three pins is employed, the three-prong of tripping mechanism, which is used to connect, to be loaded, in this way,
When the power source surge protector fault-free, surge protection can be provided for load, and when power source surge protector failure, take off
The first pin and three-prong of buckle mechanism disconnect, you can realize to loading without output, ensured in Surge Protector failure
The timely power-off of load, prevents damage of the follow-up overvoltage to load, while found in time easy to client and remove failure.
Brief 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, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to these attached drawings.
The power source surge protector circuit diagram that Fig. 1 is provided by a kind of embodiment of the utility model；
The power source surge protector circuit diagram that Fig. 2 is provided by the utility model another kind embodiment；
Fig. 3 is the tripping mechanism structure reverse side schematic diagram that the utility model embodiment provides；
Fig. 4 is the tripping mechanism structure front schematic view that the utility model embodiment provides；
The power source surge protector front view that Fig. 5 is provided by the utility model another embodiment.
Embodiment
The core of the utility model is to provide a kind of power source surge protector, can be protected in failure to loading without output
Hinder the timely power-off loaded in Surge Protector failure, prevent damage of the follow-up overvoltage to load.
It is understandable in order to enable the above-mentioned purpose of the utility model, feature and advantage to become apparent, it is right below in conjunction with the accompanying drawings
Specific embodiment of the present utility model is described in detail.
Detail is elaborated in the following description in order to fully understand the utility model.But the utility model can
Implemented with a variety of different from other manner described here, those skilled in the art can be without prejudice to the utility model connotation
In the case of do similar popularization.Therefore the utility model is from the limitation of following public embodiment.
Please refer to Fig.1, the power source surge protector circuit that Fig. 1 is provided by a kind of embodiment of the utility model
Figure.
A kind of embodiment of the utility model provides a kind of power source surge protector, including：Input terminal L, N and
PE, connects firewire, zero curve and the ground wire of supply line respectively；Output terminal L ', N ' and PE ', connect the fire of supply line respectively
Line, zero curve and ground wire；The power source surge protector by input terminal L ends, N-terminal and PE ends, and output terminal L ' ends, N ' ends and
PE ' ends are connected in supply line；The power source surge protector includes varistor 22, tripping mechanism 21 and discharge tube 23；Its
In, 21 first pin 11 of tripping mechanism is electrically connected by fuse 24 with L ends, 21 second pin 12 of tripping mechanism and varistor
22 first pins are electrically connected, and 22 second pin of varistor is electrically connected with N-terminal, and 21 three-prong 13 of tripping mechanism and L ' ends are electrically connected
Connect；The both ends of discharge tube 23 are electrically connected with N-terminal and PE ends respectively, and N-terminal is electrically connected with N ' ends, and PE ends are electrically connected with PE ' ends；L ' is held
Loaded for connecting.
In the present embodiment, varistor 22 is votage limit type protection device, when varistor 22 works normally, if having
Overvoltage appears in two interpolars of varistor 22, and varistor 22 can release surge current, by voltage clamping a to phase
To fixed magnitude of voltage, so as to fulfill the protection to load；When power source surge protector is by working long hours or repeat impact
Afterwards, the voltage limiting type element (varistor 22) in overvoltage protection element group gradually degrades, and temperature gradually rises, Huo Zheyou
Especially big overload current is by causing the temperature of voltage limiting type element (varistor 22) quickly to raise, causing voltage to limit
The temperature of the pin of type element and metal clips welding contact surface weld in tripping mechanism 21 reaches the fusing or melting of solder
During temperature, the pin that the metal departs from the welding contact surface and voltage limiting type element of shrapnel is disconnected from each other.The power surge
The original state of protector is electrically connected for the second pin 12 of tripping mechanism 21 with the first pin of varistor 22, tripping mechanism
21 the first pin 11 is connected with three-prong 13.
In the present embodiment, 21 second pin 12 of tripping mechanism is used to monitor 22 state of varistor, works as varistor
During 22 fault-free, 21 first pin 11 of tripping mechanism is connected with three-prong 13, i.e., tripping mechanism 21 is failure to actuate；When described pressure-sensitive
During 22 failure of resistance, 21 first pin 11 of tripping mechanism and three-prong 13 disconnect, i.e., tripping mechanism 21 acts.Applying
When the three-prong 13 of tripping mechanism 21 and load are electrically connected, i.e., with L ' end is electrically connected, the power source surge protector with
Load in series.When the power source surge protector fault-free, power source surge protector can provide surge protection for load, and work as
During power source surge protector failure, 21 first pin 11 of tripping mechanism and three-prong 13 disconnect, you can realize to loading without defeated
Go out, ensured the timely power-off loaded in Surge Protector failure, prevented damage of the follow-up overvoltage to load, be easy at the same time
Client has found and removes failure in time.
Further, which further includes：It is arranged on 21 first pin of the L ends and the tripping mechanism
Fuse 24 between 11.When short circuit, which occurs, for circuit short-circuit failure occurs when failure or varistor, fuse energy disjunction
The short circuit current flow of up to 600A disconnects the electrical connection between firewire circuit and power source surge protector, realizes Surge Protector
Over-current protection.
Please refer to Fig.2, the power source surge protector circuit that Fig. 2 is provided by the utility model another kind embodiment
Figure.
In the another embodiment of the utility model, power source surge protector further includes：Fault cues module 25, should
One end of fault cues module 25 and 21 three-prong 13 of tripping mechanism are electrically connected, and the other end and the N ' ends are electrically connected.It is preferred that
Ground, fault cues module 25 can be LED light.
In the present embodiment, power source surge protector equipped with alarm module 25 tool in the event of failure can to
Family sends corresponding alarm signal, when the alarm module 25 is LED light, if LED light is gone out, then it represents that the electricity
Source Surge Protector failure, prompts maintenance personal to carry out maintenance at this time.
It should be noted that the power source surge protector can also carry out parallel connection with load, protected at this time in power surge
During device failure, power to the load since power source surge protector has no effect on power delivery circuit, power delivery circuit is still to load
There is output.Simultaneous faults prompt facility module can be according to customer demand as apolegamy function, when having the function of this, if LED
Indicator light goes out, then it represents that the power source surge protector failure, at this time maintenance personal should carry out maintenance.
It should also be noted that, it is that preferred LED light performs fault cues function module in the present embodiment
Indicate function, other luminous indicator lights can also be used or send the electronic device of other standby signals, present embodiment
This is not limited, is specifically depended on the circumstances.
Please refer to Fig.3, Fig. 3 is the tripping mechanism reverse structure schematic that the utility model embodiment provides；Please
With reference to figure 4, Fig. 4 is the tripping mechanism positive structure schematic that the utility model embodiment provides.
A kind of tripping mechanism that specific embodiment of the present utility model provides, including module box body 1, sliding block 2, disengaging bullet
Piece 3 and the spring being placed in 2 cavity of sliding block, one end of spring and mechanism box body 1 connect, and the other end and sliding block 2 of spring connect,
Sliding block 2, which is limited in, to be departed under shrapnel 3, and the first end for departing from shrapnel 3 is equipped with the first pin 11 for being used for connecting L ends, departs from bullet
The second end of piece 3 is welded and fixed equipped with the second pin 12, the second pin 12 and the first pin of varistor by low melting point scolding tin,
The second pin of varistor is electrically connected with N ' ends, and the second pin 12 and three-prong 13 are fixed and be electrically connected, and three-prong 13 is used for
Connection load.
In the present embodiment, sliding block 2 is equipped with a cavity for being used to accommodate spring, the cavity one end open, and cavity
Length be less than the natural collapsing length of spring, so when the second pin 12 and varistor 22 for departing from 3 second end of shrapnel
When one pin welds, sliding block 2, which is crushed on, to be departed under shrapnel, and spring is in compressive state at this time, when fault, low melting point scolding tin
Melted due to the high temperature that fault produces, so that one end of varistor 22 and the second pin 12 are threaded off, depart from 3 bullet of shrapnel
Rise, under the action of the spring slide block movement so that depart from the first pin 11 of the first end of shrapnel and three-prong 13 is disconnected and is electrically connected
Connect relation.
It should be noted that a kind of above-mentioned connection relation for simply listing spring and sliding block and departing from shrapnel, as long as
Ensure that sliding block enables to depart from shrapnel action to disconnect with the first pin, three-prong in fault welding pin fusing
Connection, spring and sliding block and the specific configuration relation departed between shrapnel do not limit, and specifically depend on the circumstances.
In the present embodiment, tripping mechanism has three pins, in this way, the power surge for applying the tripping mechanism is protected
When protecting device fault-free, surge protection can be provided for load, and when power source surge protector failure, the disengaging bullet of tripping mechanism
The low melting point melts soldering tin of piece, you can realize to load without output, ensured that what is loaded in Surge Protector failure breaks in time
Electricity, prevents damage of the follow-up overvoltage to load, while is found in time easy to user and remove failure.
It refer to Fig. 5, the power source surge protector that Fig. 5 is provided by the utility model another embodiment is faced
Figure.
In a kind of embodiment of the utility model, power source surge protector, further includes：Surge Protector housing 5, wave
The left and right sidewall of surge protector housing is equipped with for holding firewire circuit, the through hole that zero curve circuit and ground wire are routed through.Surge
The front-rear side walls of protector housing 5, which are equipped with, is used for the fixation ear 6 that screw is fixed.
In the present embodiment, fixed ear is respectively provided with the front-rear side walls of the housing of Surge Protector, it is so-called solid
Determine ear and be similar to a U-lag, the fixed power source Surge Protector such as screw can be passed through.
In conclusion power source surge protector provided by the utility model employs the dropout machine with three pins
Structure, wherein, the first pin is connected with L ends, and the second pin is connected with the first pin of varistor, and three-prong is used for and the company of load
Connect, in this way, when the power source surge protector fault-free, surge protection can be provided for load, and work as power source surge protector
During failure, the first pin of tripping mechanism and three-prong disconnect, you can realize to loading without output, ensured in Surge Protector
The safety loaded during failure.
A kind of power source surge protector is provided the utility model above to be described in detail.Tool used herein
Body example is set forth the principle and embodiment of the utility model, and the explanation of above example is only intended to help to understand
The utility model and its core concept.It should be pointed out that for those skilled in the art, this reality is not being departed from
On the premise of with new principle, some improvement and modification can also be carried out to the utility model, these are improved and modification is also fallen into
In the protection domain of the utility model claims.
Claims (10)
- A kind of 1. power source surge protector, it is characterised in that the power source surge protector by input terminal L ends, N-terminal and PE ends, And output terminal L ' ends, N ' ends and PE ' ends are connected in supply line；The power source surge protector includes：Tripping mechanism, varistor and discharge tube；First pin of tripping mechanism is electrically connected with the L ends；The tripping mechanism three-prong is electrically connected with the L ' ends； First pin of varistor is electrically connected with second pin of tripping mechanism, second pin of varistor and the N End is electrically connected；The both ends of the discharge tube are electrically connected with the N-terminal and the PE ends respectively；The N-terminal is electrically connected with the N ' ends Connect, the PE ends are electrically connected with the PE ' ends；L ' the ends are used to connect load；Second pin of tripping mechanism is used to monitor varistor state, when the varistor fault-free, the dropout The second pin of mechanism is connected with first pin of varistor, the first pin of tripping mechanism and the three-prong connection；When During the varistor failure, the connecting pin of second pin of tripping mechanism and first pin of varistor is threaded off, institute State the first pin of tripping mechanism and three-prong disconnects.
- 2. power source surge protector according to claim 1, it is characterised in that further include：It is arranged on L ends and described Fuse between the first pin of tripping mechanism.
- 3. power source surge protector according to claim 2, it is characterised in that further include：Fault cues module, the event One end of barrier reminding module is electrically connected with the tripping mechanism three-prong, the other end and the N ' of the fault cues module End is electrically connected.
- 4. power source surge protector according to claim 3, it is characterised in that the fault cues module indicates for LED Lamp.
- 5. power source surge protector according to claim 1, it is characterised in that second pin of tripping mechanism with it is described The first pin of varistor is welded to connect by eutectic solder, when the varistor, which breaks down, produces temperature rise, The welded ends of second pin of tripping mechanism and first pin of varistor because of eutectic solder melting or melt And thread off, first pin of tripping mechanism and three-prong disconnect.
- 6. power source surge protector according to claim 5, it is characterised in that the tripping mechanism include mechanism box body, Sliding block, disengaging shrapnel and spring, one end of the spring are connected with the mechanism box body, the other end of the spring and the cunning Block connects, and the sliding block is crushed under the disengaging shrapnel, and the first end for departing from shrapnel is equipped with first pipe at connection L ends Foot, the second end for departing from shrapnel and the first pin of the varistor are welded in the eutectic welding junction of the mechanism box body Connection, the force direction of the spring depart from shrapnel and the separated direction of eutectic welding contact, the pressure-sensitive electricity to be described Resistance is equipped with and first pin is electrically connected and is used for and the three-prong of extraneous load in series, and the varistor is away from described the One end of one pin is equipped with the second pin, and second pin is connected with the discharge tube.
- 7. power source surge protector according to claim 6, it is characterised in that the varistor is arranged on the mechanism On box body, partition is equipped between the varistor and the disengaging shrapnel, the partition is equipped with the appearance varistor the The through hole that one pin passes through.
- 8. power source surge protector according to any one of claim 1 to 7, it is characterised in that further include：Surge protection Device housing, the side wall of the Surge Protector housing is equipped with to be worn for L ends, N-terminal, PE ends, L ' ends, N ' ends and PE ' end lines The through hole crossed.
- 9. power source surge protector according to claim 8, it is characterised in that on the side wall of the Surge Protector housing Equipped with the fixation ear fixed for screw.
- 10. power source surge protector according to claim 8, it is characterised in that further include：Surge Protector described in embedding The epoxy resin portion or silica gel portion for IP67 water proof and dust proof grades of each component in housing and the Surge Protector housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401721.2U CN207234395U (en) | 2017-04-17 | 2017-04-17 | A kind of power source surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401721.2U CN207234395U (en) | 2017-04-17 | 2017-04-17 | A kind of power source surge protector |
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| Publication Number | Publication Date |
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| CN207234395U true CN207234395U (en) | 2018-04-13 |
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ID=61839223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720401721.2U Active CN207234395U (en) | 2017-04-17 | 2017-04-17 | A kind of power source surge protector |
Country Status (1)
| Country | Link |
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| CN (1) | CN207234395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849046A (en) * | 2017-04-17 | 2017-06-13 | 四川中光防雷科技股份有限公司 | A kind of power source surge protector |
-
2017
- 2017-04-17 CN CN201720401721.2U patent/CN207234395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849046A (en) * | 2017-04-17 | 2017-06-13 | 四川中光防雷科技股份有限公司 | A kind of power source surge protector |
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Effective date of registration: 20191126 Address after: No.702, 7th floor, R & D building, Lingyun building, No.2, Liufang Road, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen City Tekarms Protective Electric Co., Ltd. Address before: 611731 No. 19 Tianyu Road, West Zone, hi tech Zone, Sichuan, Chengdu Patentee before: Sichuan Zhongguang Lightning Protection Technologies Co., Ltd. |