CN205039911U - General type distributor of cable television - Google Patents
General type distributor of cable television Download PDFInfo
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- CN205039911U CN205039911U CN201520863391.XU CN201520863391U CN205039911U CN 205039911 U CN205039911 U CN 205039911U CN 201520863391 U CN201520863391 U CN 201520863391U CN 205039911 U CN205039911 U CN 205039911U
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- electric capacity
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- voltage isolation
- high frequency
- secondary coil
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Abstract
The utility model discloses a general type distributor of cable television, include: shell and the cased electronic circuit board of ann, shell include the casing and with casing articulated cap, the upper surface of casing is equipped with a plurality of recesses, is equipped with the protruding muscle corresponding with every groove position on the cap, is equipped with input screwed joint and four output screwed joint on the casing outer wall, on the casing outer wall still the welding have the sheetmetal, be equipped with the locating hole on the sheetmetal, be equipped with the draw -in groove on the casing bottom surface, and all be equipped with the bamboo charcoal fiber layer on shells inner wall and the cap inner wall, the electronic circuit board includes microcontroller and high voltage isolation circuit, and microcontroller's input termination has limit switch, and the output termination has voice alarm device and wireless communication module. The utility model discloses simple structure, reasonable in design, convenient to use has realized the insulation blocking to the quartering orchestration, the reliability is high, and has realized the remote monitoring of user to the quartering orchestration.
Description
Technical field
The utility model relates to distributor, particularly the universal distributor of cable television system.
Background technology
Cable television system a kind ofly utilizes coaxial cable to receive or the system in transmission video signal source, be generally the long-distance transmissions mode of one-to-many, except utilizing co-axial cables transport signal, also need to adopt distributor that the video signal source average mark of coaxial cable reception is made into multi-channel video signal, multi-channel video signal produced the most at last is assigned on multiple stage user display terminal, uses for multiple user.
In prior art, distributor generally includes shell, shell is connected to for an input terminal of incoming video signal and several lead-out terminals for vision signal being exported to each user's display terminal.
But in actual applications, understand the aging high pressure causing electric leakage and lightning induction because of user's television product quality or TV set power device, then the electric leakage produced and the high pressure of lightning induction can seal in distributor, cause distributor to burn out, poor reliability.
Utility model content
In view of this, the utility model provides the universal distributor of cable television system, and its structure is simple, and reasonable in design, easy to use, achieve the insulation blocking to four distributors, reliability is high, and achieves the remote monitoring of user to four distributors.
The utility model is solved the problem by following technological means:
The universal distributor of cable television system of the present utility model, comprise: shell and the electronic circuit board be arranged in described shell, described shell comprises housing and the cap with described housing hinge, the upper surface of described housing is provided with multiple groove, described cap is provided with the convex tendon corresponding with each described groove location, described housing exterior walls be provided with one for connect video signal input terminal input nipple with four for being connected the output nipple of VT, described housing exterior walls is also welded with the sheet metal for being fixed on by housing on metope, described sheet metal is provided with location hole, described housing bottom surface is provided with the draw-in groove for placing described electronic circuit board, and described inner walls and described cap inwall are equipped with bamboo, described electronic circuit board comprises microcontroller and high_voltage isolation circuit, the input of described microcontroller is connected to the limit switch be arranged near described output nipple and described housing exterior walls contact position, and the output of described microcontroller is connected to phonetic alarm device and wireless communication module, described high_voltage isolation circuit comprises distributor circuit, high_voltage isolation electric capacity C1, high_voltage isolation electric capacity C2, high_voltage isolation electric capacity C3, high_voltage isolation electric capacity C4 and high_voltage isolation electric capacity C5, the input of described distributor circuit is connected with video signal input terminal by described high_voltage isolation electric capacity C1, first output of described distributor circuit is connected with the first VT by described high_voltage isolation electric capacity C2, second output of described distributor circuit is connected with the second VT by described high_voltage isolation electric capacity C3, 3rd output of described distributor circuit is connected with the 3rd VT by described high_voltage isolation electric capacity C4, 4th output of described distributor circuit is connected with the 4th VT by described high_voltage isolation electric capacity C5.
Further, described distributor circuit comprises the first high frequency transformer, second high frequency transformer and third high frequency power transformer, one end of the primary coil B1 of described first high frequency transformer is as the first input end of described distributor circuit, the other end ground connection of described primary coil B1, and the primary coil B1 of described first high frequency transformer is connected with the secondary coil B2 of described first high frequency transformer, and by electric capacity C6 ground connection, one end of described secondary coil B2 is connected with one end of the primary coil B3 of described second high frequency transformer, the other end of described secondary coil B2 is connected with one end of the primary coil B5 of described third high frequency power transformer, and described secondary coil B2 two ends are also connected to resistance R1 and the electric capacity C7 of series connection mutually, the primary coil B3 of described second high frequency transformer is connected with the secondary coil B4 of described second high frequency transformer, and by electric capacity C8 ground connection, the other end ground connection of described primary coil B3, one end of described secondary coil B4 is as the first output of described distributor circuit, the other end of described secondary coil B4 is as the second output of described distributor circuit, and the two ends of described secondary coil B4 are also connected to electric capacity C9 and the resistance R2 of series connection mutually, the primary coil B5 of described third high frequency power transformer is connected with the secondary coil B6 of described third high frequency power transformer, and by electric capacity C10 ground connection, the other end ground connection of described primary coil B5, one end of described secondary coil B6 is as the 3rd output of described distributor circuit, the other end of described secondary coil B6 is as the 4th output of described distributor circuit, and the two ends of described secondary coil B6 are also connected to electric capacity C11 and the resistance R3 of series connection mutually.
Further, the edge of described housing is provided with flexible seals.
Further, the quantity of described sheet metal is four, and described sheet metal is evenly laid in the first side and second side of described housing, and described first side is parallel with described second side.
Further, the material of described housing is kirsite.
The universal distributor of cable television system of the present utility model has following beneficial effect:
1. the universal dispensing arrangement of cable television system of the present utility model is simple, reasonable in design and easy to use.
2. the universal distributor of cable television system of the present utility model passes through the insulation blocking of high_voltage isolation circuit realiration to four distributors, and reliability is high.
3. whether the universal distributor of cable television system of the present utility model can detect vision signal output line by limit switch and loosen, and is sent to subscriber equipment by wireless communication module, achieves the remote monitoring of user to four distributors.
In sum, the universal dispensing arrangement of cable television system of the present utility model is simple, and reasonable in design, easy to use, achieve the insulation blocking to four distributors, reliability is high, and achieves the remote monitoring of user to four distributors.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic block circuit diagram of the present utility model;
Fig. 3 is the circuit connection diagram of high_voltage isolation circuit of the present utility model.
Embodiment
Below with reference to accompanying drawing, the utility model is described in detail, as shown in Figure 1: the universal distributor of cable television system of the present embodiment comprises: shell and the electronic circuit board be arranged in described shell, described shell comprises housing 1 and the cap 2 hinged with described housing 1, the upper surface of described housing 1 is provided with multiple groove, described cap 2 is provided with the convex tendon corresponding with each described groove location, described housing 1 outer wall be provided with one for connect video signal input terminal input nipple 3 with four for being connected the output nipple 4 of VT, described housing 1 outer wall is also welded with the sheet metal 5 for being fixed on by housing 1 on metope, described sheet metal 5 is provided with location hole 6, described housing 1 bottom surface is provided with the draw-in groove for placing described electronic circuit board, and described housing 1 inwall and described cap 2 inwall are equipped with bamboo.
Wherein, bamboo for absorbing the water in shell in air, thus reaches moistureproof object.
As shown in Figure 2, described electronic circuit board comprises microcontroller 7 and high_voltage isolation circuit, the input of described microcontroller 7 is connected to and is arranged near the limit switch 8 of described output nipple 4 with described housing 1 wall contacts position, and the output of described microcontroller 7 is connected to phonetic alarm device 9 and wireless communication module 10.
Concrete, when VT is not connected on output nipple 4 completely, then limit switch 8 exports high level signal, when VT is connected on output nipple 4 completely, then limit switch 8 output low level signal, so the microcontroller 7 low and high level signal determination VT that can export according to limit switch 8 whether with output nipple 4 good contact, when determining there is no good contact, realize reporting to the police by phonetic alarm device 9, also by wireless communication module 10, alarm signal is sent to subscriber equipment, such as, user mobile phone, so that user takes corresponding measure after knowing the inside story.
It should be noted that, because the quantity exporting nipple 4 is four, then the quantity of limit switch 8 is also four, and each limit switch 8 is all connected with the input of microcontroller 7.
As shown in Figure 3, described high_voltage isolation circuit comprises distributor circuit, high_voltage isolation electric capacity C1, high_voltage isolation electric capacity C2, high_voltage isolation electric capacity C3, high_voltage isolation electric capacity C4 and high_voltage isolation electric capacity C5, the input of described distributor circuit is connected with video signal input terminal by described high_voltage isolation electric capacity C1, first output of described distributor circuit is connected with the first VT by described high_voltage isolation electric capacity C2, second output of described distributor circuit is connected with the second VT by described high_voltage isolation electric capacity C3, 3rd output of described distributor circuit is connected with the 3rd VT by described high_voltage isolation electric capacity C4, 4th output of described distributor circuit is connected with the 4th VT by described high_voltage isolation electric capacity C5.
As shown in Figure 3, described distributor circuit comprises the first high frequency transformer, second high frequency transformer and third high frequency power transformer, one end of the primary coil B1 of described first high frequency transformer is as the first input end of described distributor circuit, the other end ground connection of primary coil B1, and the primary coil B1 of described first high frequency transformer is connected with the secondary coil B2 of described first high frequency transformer, and by electric capacity C6 ground connection, one end of described secondary coil B2 is connected with one end of the primary coil B3 of described second high frequency transformer, the other end of described secondary coil B2 is connected with one end of the primary coil B5 of described third high frequency power transformer, and described secondary coil B2 two ends are also connected to resistance R1 and the electric capacity C7 of series connection mutually, the primary coil B3 of described second high frequency transformer is connected with the secondary coil B4 of described second high frequency transformer, and by electric capacity C8 ground connection, the other end ground connection of described primary coil B3, one end of described secondary coil B4 is as the first output of described distributor circuit, the other end of described secondary coil B4 is as the second output of described distributor circuit, and the two ends of described secondary coil B4 are also connected to electric capacity C9 and the resistance R2 of series connection mutually, the primary coil B5 of described third high frequency power transformer is connected with the secondary coil B6 of described third high frequency power transformer, and by electric capacity C10 ground connection, the other end ground connection of described primary coil B5, one end of described secondary coil B6 is as the 3rd output of described distributor circuit, the other end of described secondary coil B6 is as the 4th output of described distributor circuit, and the two ends of described secondary coil B6 are also connected to electric capacity C11 and the resistance R3 of series connection mutually.
Concrete, high_voltage isolation circuit is used for the electric leakage of generation and the high pressure of lightning induction to isolate, and avoids damaging distributor.
As the further improvement of technique scheme, the edge of described housing 1 is provided with flexible seals.
Wherein, flexible seals is used for preventing dust etc. from entering in shell.
In the present embodiment, the quantity of described sheet metal 5 is four, and described sheet metal 5 is evenly laid in the first side and second side of described housing 1, and described first side is parallel with described second side.
In the present embodiment, the material of described housing 1 is kirsite.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. the universal distributor of cable television system, it is characterized in that: comprising: shell and the electronic circuit board be arranged in described shell, described shell comprises housing (1) and the cap (2) hinged with described housing (1), the upper surface of described housing (1) is provided with multiple groove, described cap (2) is provided with the convex tendon corresponding with each described groove location, described housing (1) outer wall be provided with one for connect video signal input terminal input nipple (3) with four for being connected the output nipple (4) of VT, described housing (1) outer wall is also welded with the sheet metal (5) for being fixed on by housing (1) on metope, described sheet metal (5) is provided with location hole (6), described housing (1) bottom surface is provided with the draw-in groove for placing described electronic circuit board, and described housing (1) inwall and described cap (2) inwall are equipped with bamboo,
Described electronic circuit board comprises microcontroller (7) and high_voltage isolation circuit, the input of described microcontroller (7) is connected to and is arranged near the limit switch (8) of described output nipple (4) with described housing (1) wall contacts position, and the output of described microcontroller (7) is connected to phonetic alarm device (9) and wireless communication module (10);
Described high_voltage isolation circuit comprises distributor circuit, high_voltage isolation electric capacity C1, high_voltage isolation electric capacity C2, high_voltage isolation electric capacity C3, high_voltage isolation electric capacity C4 and high_voltage isolation electric capacity C5, the input of described distributor circuit is connected with video signal input terminal by described high_voltage isolation electric capacity C1, first output of described distributor circuit is connected with the first VT by described high_voltage isolation electric capacity C2, second output of described distributor circuit is connected with the second VT by described high_voltage isolation electric capacity C3, 3rd output of described distributor circuit is connected with the 3rd VT by described high_voltage isolation electric capacity C4, 4th output of described distributor circuit is connected with the 4th VT by described high_voltage isolation electric capacity C5.
2. the universal distributor of cable television system according to claim 1, it is characterized in that: described distributor circuit comprises the first high frequency transformer, second high frequency transformer and third high frequency power transformer, one end of the primary coil B1 of described first high frequency transformer is as the first input end of described distributor circuit, the other end ground connection of described primary coil B1, and the primary coil B1 of described first high frequency transformer is connected with the secondary coil B2 of described first high frequency transformer, and by electric capacity C6 ground connection, one end of described secondary coil B2 is connected with one end of the primary coil B3 of described second high frequency transformer, the other end of described secondary coil B2 is connected with one end of the primary coil B5 of described third high frequency power transformer, and described secondary coil B2 two ends are also connected to resistance R1 and the electric capacity C7 of series connection mutually, the primary coil B3 of described second high frequency transformer is connected with the secondary coil B4 of described second high frequency transformer, and by electric capacity C8 ground connection, the other end ground connection of described primary coil B3, one end of described secondary coil B4 is as the first output of described distributor circuit, the other end of described secondary coil B4 is as the second output of described distributor circuit, and the two ends of described secondary coil B4 are also connected to electric capacity C9 and the resistance R2 of series connection mutually, the primary coil B5 of described third high frequency power transformer is connected with the secondary coil B6 of described third high frequency power transformer, and by electric capacity C10 ground connection, the other end ground connection of described primary coil B5, one end of described secondary coil B6 is as the 3rd output of described distributor circuit, the other end of described secondary coil B6 is as the 4th output of described distributor circuit, and the two ends of described secondary coil B6 are also connected to electric capacity C11 and the resistance R3 of series connection mutually.
3. the universal distributor of cable television system according to claim 1, is characterized in that: the edge of described housing (1) is provided with flexible seals.
4. the universal distributor of cable television system according to claim 1, it is characterized in that: the quantity of described sheet metal (5) is four, and described sheet metal (5) is evenly laid in the first side and second side of described housing (1), described first side is parallel with described second side.
5. the universal distributor of cable television system according to claim 1, is characterized in that: the material of described housing (1) is kirsite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863391.XU CN205039911U (en) | 2015-10-30 | 2015-10-30 | General type distributor of cable television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863391.XU CN205039911U (en) | 2015-10-30 | 2015-10-30 | General type distributor of cable television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039911U true CN205039911U (en) | 2016-02-17 |
Family
ID=55298778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520863391.XU Active CN205039911U (en) | 2015-10-30 | 2015-10-30 | General type distributor of cable television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093198A (en) * | 2016-11-20 | 2018-05-29 | 天津嘉美易科科技发展有限公司 | A kind of conference service distributor |
-
2015
- 2015-10-30 CN CN201520863391.XU patent/CN205039911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108093198A (en) * | 2016-11-20 | 2018-05-29 | 天津嘉美易科科技发展有限公司 | A kind of conference service distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |