CN208337140U - A kind of circuit board surge protector - Google Patents
A kind of circuit board surge protector Download PDFInfo
- Publication number
- CN208337140U CN208337140U CN201820852264.3U CN201820852264U CN208337140U CN 208337140 U CN208337140 U CN 208337140U CN 201820852264 U CN201820852264 U CN 201820852264U CN 208337140 U CN208337140 U CN 208337140U
- Authority
- CN
- China
- Prior art keywords
- mounting base
- varistor
- surge protector
- circuit board
- flash barrier
- 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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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/22—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/32—Insulating body insertable between contacts
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a kind of circuit board surge protectors; it further include the flash barrier being installed in mounting shell, actuator including mounting shell; gas-discharge tube, stacking are installed on the first integrated varistor, the first mounting base, the second mounting base, the second varistor；The gas-discharge tube is installed between the first mounting base and the second mounting base adjacent surface；The electrode exposure through-hole of the first varistor and the second varistor is offered in first mounting base and the second mounting base respectively；By electrode exposure through-hole, is connected between first varistor and gas-discharge tube, the second varistor and gas-discharge tube by current bar, form guide passage；The flash barrier is respectively arranged on the adjacent surface of first mounting base and the second mounting base；The actuator drives the flash barrier to slide after current bar is disconnected with corresponding varistor, and covers the electrode exposure through-hole opened up in corresponding mounting base.Tripping arc extinguishing simultaneously can be achieved, improve safety in utilization.
Description
Technical field
The utility model relates to circuit board protection technique fields, and in particular to a kind of circuit board surge protector.
Background technique
Surge protector (Surge Protector) is also known as lightning protection device, it acts as: to indirect thunder and lightning and direct effects of lightning or
The surge of other instantaneous overvoltages is protected, the requirement suitable for home dwelling, the tertiary industry and industrial circle surge protection.
In communications industry, in order to realize the protective effect to circuit board, corresponding circuit board electricity consumption can be generally configured
Source surge protector.When there is instantaneous overvoltage, power surge protector is threaded off to protect circuit.However, in actual use
In, while circuital current is cut off in surge protector tripping, there are also arc lights to flash.Existing surge protector does not have arc extinguishing effect,
The generation of other dangerous secrets is easily led to during tripping, during use, safety is lower.
Utility model content
The purpose of this utility model is to provide a kind of circuit board surge protectors, to solve to mention in above-mentioned background technique
And surge protector tripping cutting circuit when easily flash arc light, and existing surge protector does not have during tripping and goes out
Arc function, during use, the lower problem of safety.
To achieve the above object, the utility model provides the following technical solutions: a kind of circuit board surge protector, including
Mounting shell, further includes the flash barrier being installed in mounting shell, actuator, gas-discharge tube, and stacking is installed on the first integrated pressure
Quick resistance, the first mounting base, the second mounting base, the second varistor；The gas-discharge tube is installed on the first mounting base and
Between two mounting base adjacent surfaces；
The electricity of the first varistor and the second varistor is offered in first mounting base and the second mounting base respectively
Extremely expose through-hole；By electrode exposure through-hole, first varistor and gas-discharge tube, the second varistor and gas are put
It is connected between fulgurite by current bar, forms guide passage；
The flash barrier is respectively arranged on the adjacent surface of first mounting base and the second mounting base；The actuator exists
Current bar drives the flash barrier to slide after disconnecting with corresponding varistor, and covers the electrode exposure opened up in corresponding mounting base
Through-hole.
Further, in order to realize smooth sliding of the flash barrier in mounting base, the flash barrier includes rectangular slab main body
With the L shape gib block for being installed on rectangular slab main body two sides, the bottom end of the gib block is lower than the bottom surface of rectangular slab main body；Corresponding institute
It states the gib block of flash barrier two sides, offers guide groove respectively on the adjacent surface of first mounting base and the second mounting base, and
The gib block is slided along guide groove.
Further, in order to improve the stability being bonded when flash barrier sliding with mounting base, the initial bit of flash barrier is corresponded to
It sets, in being separately installed with the arch for being covered in vertical rod segment in gib block on the adjacent surface of first mounting base and the second mounting base
Top.
Further, the driving method of actuator, the actuator are elastic component for simplicity, correspond to the initial of flash barrier
Position, the elastic component compression is installed in guide groove, and is held out against in the top of gib block.
Further, for the ease of checking whether elastic component is installed in vault, the installation site of the corresponding elastic component,
The vault offers peep hole.
Further, in order to know which kind of state circuit board surge protector is in, both: failure or non-failure state,
In the sides adjacent of flash barrier and mounting shell wall surface, the rectangular slab body upper surface is fixedly provided with indicating arm, and the indicating arm
It is perpendicular with rod segment vertical in gib block；When corresponding flash barrier slides onto end point, the external end head position of indicating arm is described
Display window is offered on mounting shell.
Further, in order to improve the accuracy of flash barrier glide direction, the external end head of the indicating arm is fixedly provided with one
Block limit plate, and the bottom end of the limit plate is lower than the bottom end of indicating arm；Along the glide direction of the flash barrier, in described first
Guide plate is installed respectively, and limit plate is bonded with the wall surface of guide plate on the adjacent surface of mounting base and the second mounting base.
Further, in the sides adjacent of the limit plate and mounting shell wall surface, the limit plate is equipped with surge protector
Failure display label.
Further, in be installed with respectively on the adjacent surface of first mounting base and the second mounting base can card insertion in one
Contact pin and hole post.
Further, the mounting shell includes the cuboid and bottom plate of bottom end opening, and the bottom plate passes through bayonet member bayonet
In the bottom surface of cuboid.
The mode of heat release point and arc extinguishing:
When heat release point overcurrent is threaded off, the electrode separation that current bar is connect with varistor, flash barrier is being driven
Under the driving of part, slides and cover the electrode exposure through-hole opened up in corresponding mounting base；Be dielectrically separated from current bar and varistor,
Cut off the power access, so that surge protector is detached from route, avoid varistor because of the danger of short circuit caused by overheat；Mounting shell is shown
Which kind of state window display circuit board is in surge protector, both: failure or non-failure state remind user to replace in time,
Play the function of good protection equipment and power grid.
Compared with prior art, the utility model has the beneficial effects that
(1) after current bar is disconnected with corresponding varistor, the actuator in the utility model drives the flash barrier sliding
It moves and covers the electrode exposure through-hole opened up in corresponding mounting base；Thus, surge protector tripping can go out simultaneously when cutting off circuit
Arc, and show surge protector failure state, the safety used is improved, and can satisfy power supply big through-flow, compact, peace
Good perfection, wide adaptation range etc. need；
(2) the utility model uses the body surface welding form of single layer varistor, has compatible a variety of different voltages
With the varistor of current class；In addition, when two varistor units are attached using symmetric form and gas-discharge tube,
The risk that the symmetric circuit can also effectively prevent positive and negative anodes reversed with fiery zero curve；
(3) the utility model can also be achieved: a large amount of pulses generated on release circuit by lightning induction in the shortest time
Energy short circuit is simultaneously released to the earth, the potential difference between each interface of equipment is reduced, to protect the equipment on circuit；
(4) the utility model also has that structure is compact to design, manufacturing process is simple, is easy to produce in batches, user user
Just the features such as, meets the security protection surge and the demand of anti-overvoltage of the communications industry.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the first mounting base and the second mounting base open schematic diagram；
Fig. 3 is the structural schematic diagram of the second mounting base；
Fig. 4 is the structural schematic diagram of flash barrier；
In figure: 1- cuboid, 2- display window, the first varistor of 3-, the first mounting base of 4-, the second mounting base of 5-, 6-
Second varistor, 7- bottom plate, the second current bar of 8-, 9- second connect electrode, 10- contact pin, 11- flash barrier, 12- gas discharge outside
Pipe, 13- hole post connect electrode outside 14- first, the first current bar of 15-, 16- guide plate, 17- vault, 18- peep hole, 19- spring,
20- gib block, 21- bridge shape protrusion, 22- rectangular slab main body, 23- indicating arm, 24- limit plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1: please referring to Fig. 1-Fig. 4, and the utility model provides a kind of technical solution: a kind of circuit board surge protection
Device, including it is insulated shell, the flash barrier 11 being installed in mounting shell, actuator, gas-discharge tube 12, the first varistor 3,
First mounting base 4, the second mounting base 5, the second varistor 6；
First mounting base 4 is rectangle hollow shell structure, and upper surface is equipped with the first varistor installation groove；Institute
The fitting of the first varistor 3 is stated to be installed in the first varistor installation groove；Second mounting base 5 is rectangle hollow
Shell structure, lower surface are equipped with the second varistor installation groove；The fitting of second varistor 6 is installed on described second
In varistor installation groove；Gas-discharge tube engaging slot is equipped on the left of the upper surface of second mounting base 5, the gas is put
Fulgurite 12 is installed in gas-discharge tube engaging slot；In the lower surface of first mounting base 4 and the upper surface of the second mounting base 5
Outer ring be respectively arranged with can card insertion in one contact pin 10 and hole post 13；The lower surface of first mounting base 4 and the second installation
Seat 5 is crimped in hole post 13 by the interference fit of contact pin 10, and then is linked into an integrated entity；The compatible a variety of different electricity of the mounting structure
Press the varistor of grade, different-thickness；
The first varistor 3 and the second varistor 6 are offered respectively in first mounting base 4 and the second mounting base 5
Electrode exposure through-hole；By electrode exposure through-hole, first varistor 3 and gas-discharge tube 12, the second varistor 6
It is connected between gas-discharge tube 12 by current bar, forming guide passage, (both: first varistor 3 is exposed to electrode
One end of electrode and the first current bar 15 in exposure through-hole carries out solder welding, and forms heat release point；Described first
The other end of current bar 15 is connect with the one of electrode tip of gas-discharge tube 12；Another electrode of the gas-discharge tube 12
End is connect with the one of electrode tip of the second current bar 8；Another electrode tip and the second varistor of second current bar 8
6 electrodes being exposed in electrode exposure through-hole carry out solder welding, and form heat release point)；First varistor 3
First outside connect electrode 14, second varistor 6 second outside connect the leakage of electrode 9 in outside mounting shell, connect for external circuit
It connects；
Flash barrier 11 is installed in the lower surface of first mounting base 4 is slideable, and flash barrier 11 is located at described the
Between one current bar 15 and the first mounting base 4；Flash barrier 11 is installed in the upper surface of second mounting base 5 is slideable,
And flash barrier 11 is between second current bar 8 and the first mounting base 4；Flash barrier 11 is when original state, the driving
Part does not do work, and first varistor 3, the first current bar 15, gas-discharge tube 12, the second current bar 8 and the second electric current
Item 8 is in turn connected to form guide passage；When heat release point overcurrent tripping occurs, the actuator drives the flash barrier 11 sliding
It is dynamic, and cover the electrode exposure through-hole opened up in corresponding mounting base.
Any structure type for covering electrode exposure through-hole can be used in the flash barrier 11, preferably, the flash barrier
11 include rectangular slab main body 22 and are installed on the gib blocks 20 of 22 two sides of rectangular slab main body, the gib block 20 by vertical rod segment and
It is connected to the gib head composition L-shaped structure of vertical rod segment bottom end；The upper end of the vertical rod segment is lower than the upper end of rectangular slab main body 22,
The gib head of the vertical rod segment is lower than the lower end of rectangular slab main body 22, and the bottom surface of the vertical rod segment is lower than rectangular slab main body 22
Bottom surface；In order to improve the working effect of flash barrier 11, the upper surface of the rectangular slab main body 22 is also arranged in parallel with several bridge shapes
Protrusion 22, the upper surface of the bridge shape protrusion 22 is contacted with the bottom surface of current bar.
The corresponding gib block 20, the lower surface of first mounting base 4, the second mounting base 5 upper surface open up respectively
There is guide groove；When the gib block 20 slides into end along guide groove, opened up in the corresponding mounting base of the covering of flash barrier 11
Electrode exposes through-hole.
In addition, in order to improve the stationarity that gib block 20 is slided along guide groove, the initial position of corresponding flash barrier 11 is described
The lower surface of first mounting base 4, the second mounting base 5 upper surface on be installed be covered in vertical rod segment in gib block 20 respectively
Vault 17；The actuator can be any mechanism with driving effect, preferably, the actuator be elastic component, correspondence every
The initial position of arc plate 11, the elastic component compression is installed in guide groove, and is held out against in the upper end of gib block 20, the elasticity
Part can be spring 19, elastic rubber etc.；Elastic component, the peace of the corresponding elastic component whether are omitted for the ease of detection assembling process
Holding position, the vault 17 offer peep hole 18.
In order to know which kind of state circuit board surge protector is in, both: failure or non-failure state, in flash barrier 11
With the sides adjacent of mounting shell wall surface, 22 upper surface of rectangular slab main body is fixedly provided with indicating arm 23, and the indicating arm 23 with
Vertical rod segment is perpendicular in gib block 20；When corresponding flash barrier 11 slides onto end point, the external end head position of indicating arm 23,
Bar shaped display window 2 is offered on the mounting shell；In order to improve the accuracy of 11 glide direction of flash barrier, the indicating arm 23
External end head be fixedly provided with one piece of rectangle limit plate 24, and the bottom end of the limit plate 24 is lower than the bottom end of indicating arm 23；Along institute
The glide direction for stating flash barrier 11 is respectively perpendicular peace in the lower surface of first mounting base 4 and the upper surface of the second mounting base 5
Equipped with one piece of bar shaped guide plate 16, the guide plate 16 is parallel with the glide direction of flash barrier 11, the inner wall of the limit plate 24
Outside wall surface of the face paste together in guide plate 16；In addition, in the sides adjacent of the limit plate 24 and mounting shell wall surface, the limit plate 24
It is equipped with surge protector failure display label, the surge protector failure display label can be for coated on 24 outer wall of limit plate
Red figure layer on face.
The mounting shell includes the cuboid 1 and bottom plate 7 of bottom end opening, and the bottom plate 7 is by bayonet member bayonet in rectangle
The bottom surface of body 1.
The mounting shell, the first mounting base 4, the second mounting base 5 are best using the fire-retardant class F insulating material F production of industry, such
Material has many advantages, such as that various shapes, impact resistance, machinability are good, safe and reliable, it is ensured that circuit in product use process
Between plate and adjacent electronics component, with the electric property of safe insulation between Different electrodes.
The working principle of heat release point and arc extinguishing:
(1) when the first varistor 3, and/or, when the electric current that the second varistor 6 passes through is more than its limit, varistor
The low-temperature welding point scolding tin of steep temperature rise, current bar and varistor melts, and current bar is popped up because of own resilient；
(2) flash barrier 11 is under the action of spring 19, and after sliding into end along guide groove, the covering of flash barrier 11 is corresponded to
The electrode exposure through-hole opened up in mounting base, current bar and varistor are dielectrically separated from, cut off circuital current and arc light,
It ensure that electrical safety；
(3) the red figure layer in 24 outside wall surface of limit plate rests at the display window 2 of mounting shell, it may be assumed that display window 2 from
For original black transition at red, display window 2 converts the failure of red display surge protector；The knowable equipment of operator is
In failure state.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that can these embodiments be carried out with a variety of variations, repaired in the case where not departing from the principles of the present invention and spirit
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of circuit board surge protector, including mounting shell, it is characterised in that: further include the arc being installed in mounting shell
Plate (11), actuator, gas-discharge tube (12), stacking are installed on integrated the first varistor (3), the first mounting base (4), the
Two mounting bases (5), the second varistor (6)；The gas-discharge tube (12) is installed on the first mounting base (4) and the second mounting base
(5) between adjacent surface；
The first varistor (3) and the second varistor are offered respectively in first mounting base (4) and the second mounting base (5)
(6) electrode exposure through-hole；By electrode exposure through-hole, first varistor (3) and gas-discharge tube (12), the second pressure
It is connected between quick resistance (6) and gas-discharge tube (12) by current bar, forms guide passage；
The flash barrier (11) is respectively arranged on the adjacent surface of first mounting base (4) and the second mounting base (5)；The drive
Moving part drives the flash barrier (11) to slide after current bar is disconnected with corresponding varistor, and covers and open up in corresponding mounting base
Electrode exposure through-hole.
2. circuit board surge protector according to claim 1, it is characterised in that: the flash barrier (11) includes rectangle
The bottom end of plate main body (22) and the L shape gib block (20) for being installed on rectangular slab main body (22) two sides, the gib block (20) is lower than
The bottom surface of rectangular slab main body (22)；The gib block (20) of corresponding flash barrier (11) two sides, first mounting base (4) and the
Guide groove is offered on the adjacent surface of two mounting bases (5) respectively, and the gib block (20) is slided along guide groove.
3. circuit board surge protector according to claim 2, it is characterised in that: the initial bit of corresponding flash barrier (11)
It sets, is erected in being separately installed with to be covered in gib block (20) on the adjacent surface of first mounting base (4) and the second mounting base (5)
The vault (17) of straight bar section.
4. circuit board surge protector according to claim 3, it is characterised in that: the actuator is elastic component, right
The initial position of flash barrier (11) is answered, the elastic component compression is installed in guide groove, and is held out against in the top of gib block (20).
5. circuit board surge protector according to claim 4, it is characterised in that: the installation position of the corresponding elastic component
It sets, the vault (17) offers peep hole (18).
6. circuit board surge protector according to claim 3, it is characterised in that: in flash barrier (11) and installation shell wall
The sides adjacent in face, rectangular slab main body (22) upper surface are fixedly provided with indicating arm (23), and the indicating arm (23) and guiding
Vertical rod segment is perpendicular in item (20)；When corresponding flash barrier (11) slide onto end point, the external end head institute of indicating arm (23) is in place
It sets, display window (2) is offered on the mounting shell.
7. circuit board surge protector according to claim 6, it is characterised in that: the external end head of the indicating arm (23)
It is fixedly provided with one piece of limit plate (24), and the bottom end of the limit plate (24) is lower than the bottom end of indicating arm (23)；Along the arc
The glide direction of plate (11), in installing guide plate respectively on the adjacent surface of first mounting base (4) and the second mounting base (5)
(16), and limit plate (24) is bonded with the wall surface of guide plate (16).
8. circuit board surge protector according to claim 7, it is characterised in that: in the limit plate (24) and installation
The sides adjacent in shell wall face, the limit plate (24) are equipped with surge protector failure display label.
9. circuit board surge protector according to claim 1 to 8, it is characterised in that: in first peace
Be installed with respectively on dress seat (4) and the adjacent surface of the second mounting base (5) can card insertion in integrated contact pin (10) and hole post (13).
10. circuit board surge protector according to claim 1 to 8, it is characterised in that: the mounting shell
Cuboid (1) and bottom plate (7) including bottom end opening, the bottom plate (7) is by bayonet member bayonet in the bottom surface of cuboid (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852264.3U CN208337140U (en) | 2018-06-01 | 2018-06-01 | A kind of circuit board surge protector |
| FR1905809A FR3082066B3 (en) | 2018-06-01 | 2019-05-31 | Surge protector for a printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852264.3U CN208337140U (en) | 2018-06-01 | 2018-06-01 | A kind of circuit board surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337140U true CN208337140U (en) | 2019-01-04 |
Family
ID=64772967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820852264.3U Active CN208337140U (en) | 2018-06-01 | 2018-06-01 | A kind of circuit board surge protector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208337140U (en) |
| FR (1) | FR3082066B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155649A1 (en) * | 2019-01-29 | 2020-08-06 | 厦门赛尔特电子有限公司 | Surge protector |
-
2018
- 2018-06-01 CN CN201820852264.3U patent/CN208337140U/en active Active
-
2019
- 2019-05-31 FR FR1905809A patent/FR3082066B3/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155649A1 (en) * | 2019-01-29 | 2020-08-06 | 厦门赛尔特电子有限公司 | Surge protector |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3082066A3 (en) | 2019-12-06 |
| FR3082066B3 (en) | 2020-05-22 |
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