CN2498789Y - Inserting power adaptor for active TV antenna - Google Patents
Inserting power adaptor for active TV antenna Download PDFInfo
- Publication number
- CN2498789Y CN2498789Y CN01260571U CN01260571U CN2498789Y CN 2498789 Y CN2498789 Y CN 2498789Y CN 01260571 U CN01260571 U CN 01260571U CN 01260571 U CN01260571 U CN 01260571U CN 2498789 Y CN2498789 Y CN 2498789Y
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- CN
- China
- Prior art keywords
- direct insertion
- shell
- signal coupler
- supply convertor
- power conversion
- 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.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Details Of Television Systems (AREA)
Abstract
Disclosed is a straight cutting power conversion device that can realize over charge automatic protection. The device has self healing function, and is used in active television antenna. The device is made by arranging a small-sized power supply transformer and an automatic protection circuit in a flame retardant ABS injection molded outer shell. The output terminal is connected to the signal coupler composed of a high pass filter and other apparatus through conducting wires. The device can improve the view reception effect of a TV receiver. At the same time, the device greatly increases the use safety factor of the power supply transformation device, taking the lead among products of the same category.
Description
Technical field
The utility model relates to a kind of power source special conversion of active tv reception antenna and signal coupling apparatus with automatic safety defencive function.
Background technology
At present, all there is defective in various degree in active tv antenna auxiliary equipment---the supply convertor of selling on the market: what have is not easy to practical application, and the circuit that has design itself is bad, the high-frequency TV signal decay greatly, induced noise coefficient height.That have even users are existed the hidden danger that is absolutely unsafe.Therefore, the electric power conversion apparatus of active tv antenna has become the new problem that needs to be resolved hurrily.
Summary of the invention
The purpose of this utility model provides a kind of power source special conversion of active tv reception antenna and signal coupling apparatus with automatic safety defencive function.
The utility model is by the following technical solutions:
Table top is placed the large volume supply convertor change the small-sized direct insertion electric power conversion apparatus adaptive into wall power sockets.This device is made up of supply convertor and signal coupler two parts.In supply convertor, be provided with power transformer, automatically the protection and the power supply display part; High pass filter and coaxial plug, socket are set in signal coupler; Supply convertor is connected by the insulating sleeve lead with signal coupler.Concrete mode is as follows:
The direct insertion electric power conversion apparatus of a kind of active tv antenna-specific, comprise direct insertion supply convertor, signal coupler etc., mould the base upper center of shell (1) at direct insertion supply convertor, power pin (2) is housed, respectively have at the upper and lower middle part of moulding shell (1) base and to install and fix hole (3), have rectangle louvre (4) in the below of moulding shell (1) base; Direct insertion supply convertor below is connected to signal coupler (6) by insulated conductor (5), and an end side surface of signal coupler (6) is equipped with high frequency coaxial socket (7), and the other end of signal coupler base is equipped with high frequency coaxial plug (8).
The shell of direct insertion supply convertor (1) selects for use flame retardant type ABS injection molded, and shell is upper and lower two end cover structures.
Power pin (2) adopts the higher copper material of mechanical strength to make, and is assemblied in the outer upper center of supply convertor drain pan.
Adopt bifilar plastic insulated conductor (5) to be connected line length 1.5-2m between supply convertor (1) and the signal coupler (6).
The shell of signal coupler (6) selects for use high-quality ABS injection molded, and its structure adopts upper and lower end cap formula; In shell one end side surface, high frequency coaxial socket (7) is housed, with the lower end of antenna 75 Ω coaxial cables, 75 Ω plugs are suitable; At the other end of shell bottom end cover, high frequency coaxial plug (8) is housed, suitable with the TV set aerial jack.
In the inside of direct insertion supply convertor (1) shell, power transformer T is housed, and the power indicating circuit formed of the automatic protection circuit of forming by resistance R 1 and R2, LED.
Enclosure in signal coupler (6) is equipped with the high-frequency filter circuit of C1 formation and the high pass frequency selection circuit of C2 and L formation.
Advantage of the present utility model is as follows:
1, improve technology, safe in utilization: the supply convertor shell is selected the flame retardant type ABS plastic of high insulation, high mechanical properties for use, and when its internal circuit broke down, shell do not melt, not on fire, has improved coefficient of safety; Power pin has been selected the copper plug connector that reaches GB for use, and pin is arranged at supply convertor and moulds shell base upper center, and during use, human body touches less than metalwork.Like this, fundamentally stopped human electric shock's danger, used safer.
2, circuit is protected automatically: be provided with current-limiting protection resistance in the low-tension supply output circuit of supply convertor, reach and cut off out-put supply automatically under the situation of low-tension supply output short-circuit, this moment, power supply indicator extinguished, and informed the user.After treating that short trouble is got rid of, supply convertor self-healing, indicator light is lighted, and power supply enters normal operating conditions again automatically, has avoided the fire that causes owing to the output circuit short circuit and the permanent damage of power pack.
3, reduce signal attenuation, strengthen view reception effect: because dwindling of signal coupler circuit printing plate area increases the area of the shielded metal shell of coaxial plug, socket relatively, make extraneous spuious impulse disturbances obtain effective inhibition in this device; In addition, the equalizing resistance of undamped effect in the circuit reduces the high-frequency TV signal attenuation of transmission, has increased the definition of TV programme.
4, novel structure, elegant in appearance: supply convertor integral body is rectangle, and it is streamlined that the edge is, and attaching plug is arranged on the upper center of box base, to improve aesthetic appearance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an electrical schematic diagram of the present utility model.
Among Fig. 1: 1, supply convertor is moulded shell, and 2, power pin, 3, install and fix the hole, 4, the rectangle louvre, 5, insulated conductor, 6, signal coupler, 7, the high frequency coaxial socket, 8, the high frequency coaxial plug.
Among Fig. 2: 9, the electrical connection diagram in the supply convertor, 10, the electrical connection diagram in the signal coupler, 11, be equivalent to connecting line 5.
Embodiment
As shown in Figure 1: supply convertor shell 1 is injection molded with flame retardant type ABS, make drain pan and lid shell two parts, mains supply plug 2 usefulness copper materials are made, the inside of fixing threaded hole 3 is provided with fixed bolt, in ventilation and heat square hole 4 is, outer two of misplacing mould sheet and single-piece frame is injection molded, the length of bifilar insulating sleeve lead 5 is selected in 1.5-2m, as being connected of power pack and signal coupler, its upper end connects the low-voltage AC output of supply convertor inside, its lower end socket is suitable with 75 Ω plugs of the 75 Ω coaxial cable lower ends that are connected antenna, so that low-voltage alternating current power supply conducts to antenna end, to the amplifying circuit power supply, simultaneously the high-gain TV signal of amplifying circuit is conducted to the input of high pass filter; High frequency coaxial plug 8 is suitable with the TV set aerial jack, so that the high-frequency TV signal of high pass filter output is introduced television receiver.
The electrical schematic diagram of electric power conversion apparatus as shown in Figure 2, circuit among the figure in the left-hand broken line frame 9 is the electrical connection diagram in the supply convertor 1 among Fig. 1, circuit in the empty frame 10 in right side is the electrical connection diagram in the signal coupler 6 among Fig. 1, upper and lower two dotted lines 11 at middle part are equivalent to the connecting line 5 among Fig. 1.Its course of work summary is: when whole system was worked, the low-voltage alternating current power supply of civil power after transformer T step-down supplied with the power indicating circuit that R2 and LED form at first through current-limiting resistance R1, led lighting, and display power supply is working properly.Then, ac low-voltage power supply is delivered to the input of high pass filter in the signal coupler again by transmission line, and C1 plays the effect of clutter interference electric wave.The low-frequency and low-voltage AC power of 50Hz is by high-frequency inductor coil L and coaxial socket XS and 75 Ω coaxial cables introducing antenna amplifier antennafire, and amplifier obtains electricity work.After promoting television signal level, amplifier still feeds back to signal coupler by 75 Ω coaxial cables.Because coil L is high impedance to high-frequency signal, high-frequency signal can not pass through; And capacitor C2 is Low ESR to high-frequency signal, makes high-frequency TV signal by C2 and high frequency coaxial plug XP, conducts to television receiver, has improved the view reception effect of television receiver.
Claims (7)
1, the direct insertion electric power conversion apparatus of a kind of active tv antenna-specific, comprise direct insertion supply convertor, signal coupler etc., it is characterized in that: the base upper center of moulding shell (1) at direct insertion supply convertor, power pin (2) is housed, respectively have at the upper and lower middle part of moulding shell (1) base and to install and fix hole (3), have rectangle louvre (4) in the below of moulding shell (1) base; Direct insertion supply convertor below is connected to signal coupler (6) by insulated conductor (5), and an end side surface of signal coupler (6) is equipped with high frequency coaxial socket (7), and the other end of signal coupler base is equipped with high frequency coaxial plug (8).
2, direct insertion electric power conversion apparatus according to claim 1 is characterized in that: the shell of direct insertion supply convertor (1) selects for use flame retardant type ABS injection molded, and shell is upper and lower two end cover structures.
3, direct insertion electric power conversion apparatus according to claim 1 is characterized in that: power pin (2) adopts the higher copper material of mechanical strength to make, and is assemblied in the outer upper center of supply convertor drain pan.
4, direct insertion electric power conversion apparatus according to claim 1 is characterized in that: adopt bifilar plastic insulated conductor (5) to be connected line length 1.5-2m between supply convertor (1) and the signal coupler (6).
5, direct insertion electric power conversion apparatus according to claim 1 is characterized in that: the shell of signal coupler (6) selects for use high-quality ABS injection molded, and its structure adopts upper and lower end cap formula; In shell one end side surface, high frequency coaxial socket (7) is housed, with the lower end of antenna 75 Ω coaxial cables, 75 Ω plugs are suitable; At the other end of shell bottom end cover, high frequency coaxial plug (8) is housed, suitable with the TV set aerial jack.
6, direct insertion electric power conversion apparatus according to claim 1; it is characterized in that: in the inside of direct insertion supply convertor (1) shell; power transformer T is housed, and the power indicating circuit formed of the automatic protection circuit of forming by resistance R 1 and R2, LED.
7, direct insertion electric power conversion apparatus according to claim 1 is characterized in that: the enclosure in signal coupler (6), be equipped with the high-frequency filter circuit of C1 formation and the high pass frequency selection circuit of C2 and L formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01260571U CN2498789Y (en) | 2001-09-21 | 2001-09-21 | Inserting power adaptor for active TV antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01260571U CN2498789Y (en) | 2001-09-21 | 2001-09-21 | Inserting power adaptor for active TV antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498789Y true CN2498789Y (en) | 2002-07-03 |
Family
ID=33668696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01260571U Expired - Fee Related CN2498789Y (en) | 2001-09-21 | 2001-09-21 | Inserting power adaptor for active TV antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498789Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712189A (en) * | 2013-12-31 | 2014-04-09 | 李忠训 | LED high-voltage module driven by 220V alternating current |
-
2001
- 2001-09-21 CN CN01260571U patent/CN2498789Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712189A (en) * | 2013-12-31 | 2014-04-09 | 李忠训 | LED high-voltage module driven by 220V alternating current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |