CN204464991U - A kind of self-resetting type communication line overvoltage protection box - Google Patents
A kind of self-resetting type communication line overvoltage protection box Download PDFInfo
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- CN204464991U CN204464991U CN201520184831.9U CN201520184831U CN204464991U CN 204464991 U CN204464991 U CN 204464991U CN 201520184831 U CN201520184831 U CN 201520184831U CN 204464991 U CN204464991 U CN 204464991U
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Abstract
The utility model provides a kind of self-resetting type communication line overvoltage protection box, belongs to field of mechanical technique.It solve the unsafe problem of existing telephone circuit.This self-resetting type communication line overvoltage protection box comprises base, is set in the slip lid on base and is arranged on the pressurize assembly on base; pressurize assembly comprises the wiring units for connecting telephone wire and the ground unit for connecting earth connection, is provided with the overvoltage for receiving wiring units and is unloaded to the discharge tube of ground unit between wiring units and ground unit.The utility model has the advantage carrying out overvoltage protection to telephone wire.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of self-resetting type communication line overvoltage protection box, particularly a kind of self-resetting type communication line overvoltage protection box telephone wire being carried out to overvoltage protection.
Background technology
It is too high too low that line voltage avoided in use most by electrical equipment, no matter be that industrial equipment or household electrical appliance have a voltage to allow mobility scale, surpass and go beyond the scope just beyond dielectric strength and the withstand voltage of electrical equipment, therefore electrical equipment can generate heat, puncture and burn out even on fire.
At present because zero line is stolen, ageing equipment, technical failure, human failure, natural calamity, power failure the situation that reason causes voltage instability, overtension too low such as to send a telegram here again; the situation causing large section to burn out electrical equipment in a large number constantly occurs; therefore Protector for electric appliance should be added; to prevent electrical fire, the protection security of the lives and property.
Family wired phone in daily life, by external telecom-munications cable access user, is then connected up by telephone wire in indoor, the overvoltage that phone often causes because of thunder and lightning and cause damage, even may threaten the personal safety of user.
In sum, for solving the deficiency on existing telephone line construction, need to design a kind of structure self-resetting type communication line overvoltage protection box simple, reasonable in design.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the self-resetting type communication line overvoltage protection box that a kind of structure is simple, reasonable in design.
The purpose of this utility model realizes by following technical proposal: a kind of self-resetting type communication line overvoltage protection box; comprise base, be set in the slip lid on base and be arranged on the pressurize assembly on base; described pressurize assembly comprises the wiring units for connecting telephone wire and the ground unit for connecting earth connection, is provided with the overvoltage for receiving wiring units and is unloaded to the discharge tube of ground unit between wiring units and ground unit.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, the sidewall of base offers some through holes, be all inserted with the seal for telephone wire, earth connection turnover in each through hole, each seal all offer and through hole cannelure one to one.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box; described wiring units comprises two mount pads be symmetricly set on base; each mount pad is all detachably provided with and embraces a sheet, two armfuls of sheets be connected with discharge tube respectively and discharge tube between two armfuls of sheets.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, each armful of sheet is all connected with mount pad by connection bolt, and each connection bolt is all connected with a telephone wire.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box; described ground unit comprise ground strip and ground strip between two mount pads; the end of ground strip is connected with base by earth stud, and the head end of ground strip is connected with discharge tube, and described earth stud is connected with earth connection.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, described discharge tube comprises body, is located in the contact in the middle part of body and is symmetricly set on body two ends and two electrode slices be connected with body, and each electrode slice all faces contact bending and extends.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, each armful of sheet faces the equal outwardly convex in body side and forms locating piece, and two electrode slices are recessed to form and two locating pieces, two location notchs one to one respectively to body interior.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, described ground strip is positioned at below discharge tube, and the head end of ground strip bends straight up and offers the breach vertically arranged at the head end of ground strip, and described contact is positioned at breach.
In above-mentioned a kind of self-resetting type communication line overvoltage protection box, base is installed with symmetrically arranged two first slide rails, is installed with in slip lid inside and two first slide rails, two second slide rails one to one.
Compared with prior art, the utility model structure is simple, easy to operate; Adopt the setting of discharge tube the overvoltage on telephone wire can be drained to ground unit, guarantee that the voltage on telephone wire is normal; Whole protector compact, is arranged on not engaged position space, indoor.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model one preferred embodiment.
Fig. 2 is the part-structure schematic diagram of the utility model one preferred embodiment.
Fig. 3 is the structural representation at another visual angle of Fig. 2.
Fig. 4 is the structural representation of slip lid in the utility model one preferred embodiment.
Fig. 5 is the structural representation of discharge tube in the utility model one preferred embodiment.
Fig. 6 is the structural representation embracing sheet in the utility model one preferred embodiment.
Fig. 7 is the structural representation of ground strip in the utility model one preferred embodiment.
In figure, 10, base; 11, the first slide rail; 12, through hole; 20, slip lid; 21, the second slide rail; 31, sheet is embraced; 311, locating piece; 32, connection bolt; 33, mount pad; 41, ground strip; 411, breach; 42, earth stud; 50, discharge tube; 51, body; 52, contact; 53, electrode slice; 531, location notch; 60, seal; 61, cannelure.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 to Figure 3; the pressurize assembly that this self-resetting type communication line overvoltage protection box comprises base 10, is set in the slip lid 20 on base 10 and is arranged on base 10; pressurize assembly comprises the wiring units for connecting telephone wire and the ground unit for connecting earth connection, is provided with the overvoltage for receiving wiring units and is unloaded to the discharge tube 50 of ground unit between wiring units and ground unit.
Because zero line is stolen, ageing equipment, technical failure, human failure, natural calamity, the power failure reason such as to send a telegram here again cannot guarantee constant (voltage fluctuation is among a small circle normal phenomenon) of voltage on household line; but present household electrical appliance major part does not all have specific pressurizer; sometimes on main frame, Security Unit can be installed; to ensure the constant of line voltage distribution; but because Security Unit is the voltage protecting whole circuit; the voltage on single branch road cannot be ensured, also cannot solve the electric voltage exception phenomenon because electrical equipment self problem causes.
Especially, the voltage of telephone wire and household line is inconsistent, employing be not the normal voltage of 220V, but be less than the voltage of 48V.Thus, telephone wire just cannot use same Security Unit with other electrical equipment, and therefore, the utility model devises one can be carried out overvoltage protection self-resetting type communication line overvoltage protection box to telephone wire.The utility model, except for telephone line, can also be used on other communication lines.
Usual equipment can both bear the overvoltage of certain amplitude, but the abnormal overvoltage (i.e. Unwanted voltage) higher than equipment permission voltage range can damage equipment.The purpose of this utility model is to carry out overvoltage protection to telephone wire when Unwanted voltage exists.
Wiring units in telephone wire access protector, the ground unit in earth connection access protector, discharge tube 50 connects wiring units and ground unit, and the Unwanted voltage of wiring units transmission can be drained to ground unit by above-mentioned discharge tube 50.When telephone wire occurring Unwanted voltage, by discharge tube 50, Unwanted voltage is drained to ground unit, after drainage is complete, telephone wire recovers normal voltage, thus realizes the function of pressurize.
Preferably, the sidewall of base 10 offers multiple through hole 12, be all inserted with the seal 60 for telephone wire, earth connection turnover in each through hole 12, each seal 60 all offer and through hole 12 cannelure 61 one to one.
The quantity of through hole 12 is preferably three, and accordingly, the quantity of seal 60 is also three.Offering of cannelure 61 is that seal 60 can fix on the sidewall of base 10 in order to match with through hole 12 inwall.When not affecting sealing property and normal work, the shape of seal 60 can arbitrarily design.
Offer entrance at the middle part of seal 60, in order to ensure the sealing that seal 60 is good, seal 60 adopts rubber or other soft materials to make, and the entrance therefore on seal 60 does not obviously show.Telephone wire and earth connection can pass in and out each entrance; wherein the quantity of telephone wire is preferably two; the quantity of earth connection is preferably one; one of them telephone wire enters protector by the seal 60 on the left side; another telephone wire enters protector by the seal 60 on the right; in two telephone wires, one is that then another is output line to input line, and earth connection then enters protector by the seal 60 of centre.
Preferably, wiring units comprises two mount pads 33 be symmetricly set on base 10, each mount pad 33 is all detachably provided with embrace sheet 31, two armfuls of sheets 31 be connected with discharge tube 50 respectively and discharge tube 50 between two armfuls of sheets 31.
Further preferably, each armful of sheet 31 is all connected with mount pad 33 by connection bolt 32, and each connection bolt 32 is all connected with a telephone wire.
Two corresponding two telephone wires of mount pad 33, two telephone wires difference solderless wrapped connections on the connection bolt 32 of correspondence, and are fixed, because each armful of sheet 31 is all connected with mount pad 33 by connection bolt 32 by corresponding nut and pad, therefore, each telephone wire all with corresponding Bao Pian 31 UNICOM.And two embrace sheet 31 be connected with discharge tube 50 respectively and discharge tube 50 between two armfuls of sheets 31, therefore, two telephone wires embrace sheet 31 and discharge tube 50 UNICOM respectively by correspondence, then the voltage between two telephone wires is presented as the voltage at discharge tube 50 two ends.
Preferably, ground unit comprise ground strip 41 and ground strip 41 between two mount pads 33, the end of ground strip 41 is connected with base 10 by earth stud 42, and the head end of ground strip 41 is connected with discharge tube 50, and earth stud 42 is connected with earth connection.
Earth connection solderless wrapped connection is also fixed by corresponding nut and pad on earth stud 42, the end of ground strip 41 is connected with base 10 by earth stud 42, the head end of ground strip 41 is connected with discharge tube 50, and therefore, earth connection is by ground strip 41 and discharge tube 50 UNICOM.
As shown in Figure 5, preferably, discharge tube 50 comprises body 51, is located in the contact 52 in the middle part of body 51 and is symmetricly set on body 51 two ends and two electrode slices 53 be connected with body 51, and each electrode slice 53 all faces contact 52 and bends and extend.
Discharge tube 50 is a kind of high voltage protective elements; the protection range of the discharge tube 50 of different model is different; outside protection range, discharge tube 50 does not carry out pressurize work, therefore can select the model of suitable discharge tube 50 according to the unaffordable overvoltage of the equipment of required protection.
In the present embodiment, when the voltage instantaneous at discharge tube 50 two ends exceeds its minimal protection value (telephone wire having occurred Unwanted voltage), discharge tube 50 inside there will be short circuit phenomenon, and Unwanted voltage is drained to earth connection.When the voltage at discharge tube 50 two ends does not exceed its minimal protection value (Unwanted voltage does not appear in telephone wire), now discharge tube 50 can not carry out pressurize work.
Discharge tube 50 in the present embodiment is preferably gas discharge tube, and when the voltage instantaneous at two ends exceeds minimal protection value, the gas in body 51 punctures instantaneously, and the Unwanted voltage on telephone wire is drained to earth connection.After drainage is complete, discharge tube 50 returns to initial condition, and telephone wire recovers normal voltage.
Two electrode slices 53 are bimetal leaf, and bimetal leaf also claims thrermostatic bimetal-plate, because the thermal coefficient of expansion of each constituent element layer is different, when the temperature is changed, the deformation of active layers is greater than the deformation of passive layer, and the entirety of bimetal leaf to passive layer curving, thus will produce deformation.
When the voltage at discharge tube 50 two ends exceeds minimal protection value for a long time, the temperature of two electrode slices 53 rises, and two electrode slices 53 are bending until contact with contact 52 towards contact 52 respectively, and Unwanted voltage is drained to earth connection.After drainage is complete, two electrode slice 53 temperature decline, and get back to initial position, and telephone wire recovers normal voltage.
Because the amount of this deformation can not be very large, therefore, two electrode slices 53 all bend extended in facing contact 52, and after discharge tube 50 is subject to Unwanted voltage for a long time, two electrode slices 53 can contact with contact 52 as early as possible, and Unwanted voltage is drained to earth connection.
As shown in Figure 5 and Figure 6, further preferably, each armful of sheet 31 faces the equal outwardly convex in body 51 side and forms locating piece 311, two electrode slice 53 respectively to the formation of body 51 inner recess and two locating pieces 311, two location notchs 531 one to one.
Two locating pieces 311 cooperatively interact with corresponding location notch 531 respectively and act on, discharge tube 50 is made to embrace between sheet 31 at two, wherein, two armfuls of sheets 31 contact with two electrode slices 53 respectively, and namely two telephone wires are by two armfuls of sheet 31, two electrode slices 53 and discharge tube 50 UNICOM.
As shown in Fig. 2, Fig. 3 and Fig. 7, further preferably, ground strip 41 is positioned at below discharge tube 50, and the head end of ground strip 41 bends straight up and offers the breach 411 vertically arranged at the head end of ground strip 41, and contact 52 is positioned at breach 411.
The setting of breach 411 is convenient to contact 52 and is contacted with ground strip 41, because contact 52 is located in the middle part of body 51, therefore, when body 51 internal gas punctures and occurs short circuit, body 51 inside and contact 52 conducting, now Unwanted voltage is drained to earth connection through body 51 inside, contact 52 and ground strip 41; When after discharge tube 50 long-term existence Unwanted voltage, two electrode slices 53 contact with contact 52, and now Unwanted voltage is drained to earth connection through two electrode slices 53, contact 52 and ground strip 41.
Be struck by lightning and make the situation that on telephone wire, voltage condition of instant error raises, the voltage instantaneous belonging to discharge tube 50 two ends exceeds the phenomenon of its minimal protection value, and now body 51 internal gas punctures, and Unwanted voltage is drained to earth connection.After drainage is complete, discharge tube 50 returns to initial condition, and telephone wire recovers normal voltage.
When telephone wire contacts with civil electric wire for a long time, belong to the phenomenon of discharge tube 50 long-term existence Unwanted voltage, two electrode slices 53 can contact with contact 52, and Unwanted voltage is drained to earth connection.After drainage is complete, two electrode slice 53 temperature decline, and get back to initial position, and telephone wire recovers normal voltage.Wherein discharge tube 50 is reusable.
As shown in Figures 1 to 4, preferably, base 10 is installed with symmetrically arranged two first slide rails 11, is installed with in slip lid 20 inside and two first slide rails 11, two second slide rails 21 one to one.Two first slide rails 11 cooperatively interact with the second corresponding slide rail 21 respectively, are convenient to slip lid 20 and depart from base 10 or be fastened on base 10, conveniently open or close this overvoltage protection box.
Two telephone wires in an initial condition, are accessed connection bolt 32 corresponding in protector by this self-resetting type communication line overvoltage protection box respectively, and earth connection access earth stud 42, completes simple installation.When being struck by lightning or other make telephone wire occur Unwanted voltage instantaneously, discharge tube 50 internal short-circuit, Unwanted voltage is drained to earth connection; When there is the situation that telephone wire contacts with civil electric wire for a long time, discharge tube 50 long-term existence Unwanted voltage, two electrode slices 53 contact with contact 52, and Unwanted voltage is drained to earth connection.Whole overvoltage protection box can at every moment protect telephone line voltages to stablize, pressurize successful.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (9)
1. a self-resetting type communication line overvoltage protection box; it is characterized in that; comprise base, be set in the slip lid on base and be arranged on the pressurize assembly on base; described pressurize assembly comprises the wiring units for connecting telephone wire and the ground unit for connecting earth connection, is provided with the overvoltage for receiving wiring units and is unloaded to the discharge tube of ground unit between wiring units and ground unit.
2. a kind of self-resetting type communication line overvoltage protection box according to claim 1; it is characterized in that; the sidewall of base offers some through holes; all be inserted with the seal for telephone wire, earth connection turnover in each through hole, each seal all offer and through hole cannelure one to one.
3. a kind of self-resetting type communication line overvoltage protection box according to claim 1 and 2; it is characterized in that; described wiring units comprises two mount pads be symmetricly set on base; each mount pad is all detachably provided with and embraces a sheet, two armfuls of sheets be connected with discharge tube respectively and discharge tube between two armfuls of sheets.
4. a kind of self-resetting type communication line overvoltage protection box according to claim 3, it is characterized in that, each armful of sheet is all connected with mount pad by connection bolt, and each connection bolt is all connected with a telephone wire.
5. a kind of self-resetting type communication line overvoltage protection box according to claim 3; it is characterized in that; described ground unit comprise ground strip and ground strip between two mount pads; the end of ground strip is connected with base by earth stud; the head end of ground strip is connected with discharge tube, and described earth stud is connected with earth connection.
6. a kind of self-resetting type communication line overvoltage protection box according to claim 5; it is characterized in that; described discharge tube comprises body, is located in the contact in the middle part of body and is symmetricly set on body two ends and two electrode slices be connected with body, and each electrode slice all faces contact bending and extends.
7. a kind of self-resetting type communication line overvoltage protection box according to claim 6; it is characterized in that; each armful of sheet faces the equal outwardly convex in body side and forms locating piece, and two electrode slices are recessed to form and two locating pieces, two location notchs one to one respectively to body interior.
8. a kind of self-resetting type communication line overvoltage protection box according to claim 6; it is characterized in that; described ground strip is positioned at below discharge tube, and the head end of ground strip bends straight up and offers the breach vertically arranged at the head end of ground strip, and described contact is positioned at breach.
9. a kind of self-resetting type communication line overvoltage protection box according to claim 1 and 2, is characterized in that, base is installed with symmetrically arranged two first slide rails, is installed with and two first slide rails, two second slide rails one to one in slip lid inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520184831.9U CN204464991U (en) | 2015-03-30 | 2015-03-30 | A kind of self-resetting type communication line overvoltage protection box |
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| CN201520184831.9U CN204464991U (en) | 2015-03-30 | 2015-03-30 | A kind of self-resetting type communication line overvoltage protection box |
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| CN204464991U true CN204464991U (en) | 2015-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753056A (en) * | 2015-03-30 | 2015-07-01 | 宁波广瑞通信技术有限公司 | Self-resetting communication line overvoltage protection box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753056A (en) * | 2015-03-30 | 2015-07-01 | 宁波广瑞通信技术有限公司 | Self-resetting communication line overvoltage protection box |
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