CN202488129U - Building high voltage isolation device for cable television - Google Patents
Building high voltage isolation device for cable television Download PDFInfo
- Publication number
- CN202488129U CN202488129U CN2012201351726U CN201220135172U CN202488129U CN 202488129 U CN202488129 U CN 202488129U CN 2012201351726 U CN2012201351726 U CN 2012201351726U CN 201220135172 U CN201220135172 U CN 201220135172U CN 202488129 U CN202488129 U CN 202488129U
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- Prior art keywords
- circuit board
- high voltage
- copper sleeve
- voltage capacitance
- input
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- Expired - Lifetime
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Abstract
The utility model discloses a building high voltage isolation device for a cable television. The building high voltage isolation device comprises an external connecting pipe, an input-end copper joint, an output-end copper joint, a circuit board, ground high voltage capacitors and a core wire high voltage capacitor, wherein the input-end copper joint and the output-end copper joint are arranged at the two ends of the external connecting pipe; the ground high voltage capacitors and the core wire high voltage capacitor are connected to the circuit board; and the circuit board is arranged in the external connecting pipe, and the two ends of the circuit board are connected with the input-end copper joint and the output-end copper joint. The building high voltage isolation device is characterized in that the external connecting pipe is a copper pipe; the ground high voltage capacitors and the core wire high voltage capacitor are high voltage capacitors with withstand voltages of more than direct current (DC)7.5KV; an insulating circuit board is arranged between the input-end copper joint and the circuit board; a contact pin is arranged on the ground high voltage capacitor close to the input-end copper joint; a coaxial line is also arranged on the circuit board; and a columnar magnetic ring is sleeved on the coaxial line. According to the building high voltage isolation device for the cable television, rear-end equipment and devices can be effectively prevented from being damaged by high inductive voltage during lightning; the lowest withstand voltage is DC6KV; and in addition, the device has high electromagnetic interference suppression capability.
Description
Technical field
The utility model relates to a kind of cable TV field, particularly cable TV building high pressure spacer assembly.
Background technology
In the existing cable TV; Electric leakage that causes because of high pressure or user's TV set power device aging of lightning induction etc. seals in wired distribution network; Can produce cable TV signal and disturb, when making passive devices such as branch distributor is installed be damaged, seriously can threaten attendant and user's personal safety on the net; Existing user terminal box all is on the netting twine of the heart yearn of coaxial cable, to isolate with general ceramic condenser, rainy thunder and lightning is taken place frequently to distinguish then damage inadequately because of withstand voltage.Part manufacturer production high-voltage isolator does not consider that electromagnetic compatibility and electromagnetic interference suppress problem yet, and directly at heart yearn and heart yearn, ground wire and ground wire separate with high-voltage capacitance, with the plastic cement shell as the product main body.
Summary of the invention
The purpose of the utility model is to provide a kind of DC of having 6KV high pressure to isolate to have simultaneously the cable TV building high pressure spacer assembly of the transmission performance of electromagnetic shielding and radiofrequency signal preferably for the deficiency that solves above-mentioned prior art.
To achieve these goals; The cable TV building high pressure spacer assembly that the utility model designed; Comprise extension tube attached, place input copper sleeve and output copper sleeve, the circuit board at extension tube attached two ends and be connected ground connection high-voltage capacitance and the heart yearn high-voltage capacitance on the circuit board; Said circuit board places in the extension tube attached and two ends join with input copper sleeve and output copper sleeve respectively, it is characterized in that said extension tube attached is a copper pipe; Said ground connection high-voltage capacitance and heart yearn high-voltage capacitance are to have the above high-voltage capacitance of withstand voltage DC 7.5KV; Be provided with between said input copper sleeve and the circuit board and big insulating circuit boards such as extension tube attached internal diameter, be made as the haptic element that is placed on the insulating circuit board edge near the ground connection high-voltage capacitance grounding leg of input copper sleeve; Also be provided with coaxial line on the circuit board, cover is useful on the cylindricality magnet ring of absorption and loss electromagnetic energy on the coaxial line.
In order to prevent electrion between heart yearn high-voltage capacitance and ground connection high-voltage capacitance; Also widen simultaneously the insulating space of each high-voltage capacitance and copper earth tube; The arrangement of staggering of ground connection high-voltage capacitance and heart yearn high-voltage capacitance, said ground connection high-voltage capacitance and heart yearn high-voltage capacitance are the high-voltage capacitances of withstand voltage DC 7.5KV.
For the high pressure of guaranteeing ground connection and input copper pipe is isolated, near the ground connection high-voltage capacitance of input copper sleeve and the circuit board between the insulating circuit board, be socketed with the insulation shrink sleeve.
For fixedly input copper sleeve and output copper sleeve, be provided with the fixedly plastic steel nut of input copper sleeve between input copper sleeve and the insulating circuit board, at the extension tube attached peripheral hardware the fixedly hex nut of output copper sleeve is arranged.
The cable TV building high pressure spacer assembly that the utility model obtains, in the time of not only can effectively preventing to be struck by lightning the induction high pressure to rear end equipment and components from being damaged, can also withstand voltage minimum DC 6KV, have the inhibition ability of good electromagnetic interference simultaneously.
Description of drawings
Fig. 1 is the overall structure sketch map of embodiment.
Among the figure: extension tube attached 1, input copper sleeve 2, output copper sleeve 3, circuit board 4, ground connection high-voltage capacitance 5, haptic element 51, heart yearn high-voltage capacitance 6, insulating circuit board 7, coaxial line 8, cylindricality magnet ring 9, insulation shrink sleeve 10, plastic steel nut 11, hex nut 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment; As shown in Figure 1; The cable TV building high pressure spacer assembly that the utility model provides; Three ground connection high-voltage capacitances 5 and a heart yearn high-voltage capacitance 6 of comprising extension tube attached 1, placing input copper sleeve 2 and output copper sleeve 3, the circuit board 4 at extension tube attached 1 two ends and be connected on the circuit board 4 and stagger and arrange, said heart yearn high-voltage capacitance 6 is positioned at the end near output copper sleeve 3; Said circuit board 4 places in the extension tube attached 1 and two ends join with input copper sleeve 2 and output copper sleeve 3, and said extension tube attached 1 is a copper pipe; Said ground connection high-voltage capacitance 5 and heart yearn high-voltage capacitance 6 are selected the high-voltage capacitance of withstand voltage DC 7.5KV for to have the high-voltage capacitance more than the withstand voltage DC 7.5KV at this; Be provided with between said input copper sleeve 2 and the circuit board 4 and big insulating circuit boards 7 such as extension tube attached 1 internal diameter, be provided with the haptic element 51 that the outer end places insulating circuit board 7 edges near the ground connection high-voltage capacitance 5 of input copper sleeve 2; Also be provided with 75 Europe coaxial lines 8 on the circuit board 4, cover is useful on the cylindricality magnet ring 9 of absorption and loss electromagnetic energy on the coaxial line 8; On near the ground connection high-voltage capacitance 5 of input copper sleeve 2 and the circuit board 4 between the insulating circuit board 7, be socketed with insulation shrink sleeve 10; Be provided with the fixedly plastic steel nut 11 of input copper sleeve 2 between input copper sleeve 2 and the insulating circuit board 7, outside extension tube attached 1, be provided with the fixedly hex nut 12 of output copper sleeve 3.
During finished product, between input copperhead 2 and extension tube attached 1, add insulating cement with fixing circuit board 4 and extension tube attached 1, it is loosening with extension tube attached 1 to occur circuit board 4 when avoiding installing.
When reality is used with cable TV building high pressure spacer assembly be serially connected in can effectively prevent to be struck by lightning in the wire cable time induction high pressure to rear end equipment and components from being damaged.This product design frequency bandwidth is at 5-1000MHz; The insertion loss that is input to output is in 1.3DB; The reflection loss of two-port is greater than 15DB, can withstand voltage minimum DC 6KV, and product has the inhibition ability of good electromagnetic interference simultaneously; The area and the higher ground of wireline equipment high voltage protection of some many thunders and lightnings can use this product widely at home with abroad.
Claims (5)
1. cable TV building high pressure spacer assembly; It comprises extension tube attached (1), place the input copper sleeve (2) at extension tube attached (1) two ends, output copper sleeve (3), circuit board (4), be connected ground connection high-voltage capacitance (5) and heart yearn high-voltage capacitance (6) on the circuit board (4); Said circuit board (4) places in the extension tube attached (1) and two ends join with input copper sleeve (2) and output copper sleeve (3) respectively, it is characterized in that said extension tube attached (1) is copper pipe; Said ground connection high-voltage capacitance (5) and heart yearn high-voltage capacitance (6) are for having the high-voltage capacitance more than the withstand voltage DC 7.5KV; Be provided with between said input copper sleeve (2) and the circuit board (4) and big insulating circuit board (7) such as extension tube attached (1) internal diameter, be provided with the haptic element (51) that the outer end places insulating circuit board (7) edge near the ground connection high-voltage capacitance (5) of input copper sleeve (2); Also be provided with coaxial line (8) on the circuit board (4), coaxial line (8) is gone up the cylindricality magnet ring (9) that cover is useful on absorption and loss electromagnetic energy.
2. cable TV building high pressure spacer assembly according to claim 1; It is characterized in that the arrangement of staggering of ground connection high-voltage capacitance (5) and heart yearn high-voltage capacitance (6), said ground connection high-voltage capacitance (5) and heart yearn high-voltage capacitance (6) are for having the high-voltage capacitance of withstand voltage DC 7.5KV.
3. cable TV building high pressure spacer assembly according to claim 1 and 2 is characterized in that near the ground connection high-voltage capacitance (5) of input copper sleeve (2) and the circuit board (4) between the insulating circuit board (7), being socketed with insulation shrink sleeve (10).
4. cable TV building high pressure spacer assembly according to claim 1 and 2; It is characterized in that being provided with between input copper sleeve (2) and the insulating circuit board (7) the fixedly plastic steel nut (11) of input copper sleeve (2), the outer fixedly hex nut (12) of output copper sleeve (3) that is provided with of extension tube attached (1).
5. cable TV building high pressure spacer assembly according to claim 3; It is characterized in that being provided with between input copper sleeve (2) and the insulating circuit board (7) the fixedly plastic steel nut (11) of input copper sleeve (2), the outer fixedly hex nut (12) of output copper sleeve (3) that is provided with of extension tube attached (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201351726U CN202488129U (en) | 2012-04-01 | 2012-04-01 | Building high voltage isolation device for cable television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201351726U CN202488129U (en) | 2012-04-01 | 2012-04-01 | Building high voltage isolation device for cable television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488129U true CN202488129U (en) | 2012-10-10 |
Family
ID=46962520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201351726U Expired - Lifetime CN202488129U (en) | 2012-04-01 | 2012-04-01 | Building high voltage isolation device for cable television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488129U (en) |
-
2012
- 2012-04-01 CN CN2012201351726U patent/CN202488129U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |