CN201111977Y - Supply line and plug for improving audio video transmission - Google Patents
Supply line and plug for improving audio video transmission Download PDFInfo
- Publication number
- CN201111977Y CN201111977Y CNU200720140252XU CN200720140252U CN201111977Y CN 201111977 Y CN201111977 Y CN 201111977Y CN U200720140252X U CNU200720140252X U CN U200720140252XU CN 200720140252 U CN200720140252 U CN 200720140252U CN 201111977 Y CN201111977 Y CN 201111977Y
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- line
- power
- live wire
- audio frequency
- video transmission
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Abstract
The utility model relates to a power cable which can improve the transmission of audio and video frequencies. The power cable comprises a rubber jacket and a single-strand ground line or a gluing ground line and a single-strand live line, or a gluing live line and a single-strand null line or a gluing null line, which are covered with the rubber jacket, wherein, fillings are filled in the clearance among the null lines, ground lines and the live lines, and the cross section area of the live lines is larger than that of the null lines or the ground lines. The power cable also discloses a power cable plug which can improve the transmission of audio and video frequencies. By adopting the power cable of the utility model, the power supply transmission efficiency of sound equipment or video equipment can be improved, the flow of the power currency is accelerated and the filtration effect can be realized. Compared with the normal power cable, the power cable of the utility model not only significantly improves external interference resistance, noise wave filtration and signal-to-noise, etc., but also improves the clarity of sound, reduces distortion and enhances the dynamic range.
Description
Technical field
The utility model patent relates to a kind of power line, especially relates to a kind of power line and plug that improves the audio frequency and video transmission.
Background technology
The structural representation of traditional power transmission line (power line) is wrapped in by outer field gum cover 1 that three equirotal ground wires 2, live wire 3 and zero lines 4 form as shown in Figure 1.Space between zero line 4, ground wire 2 and the live wire 3 is provided with inserts 7.And the schematic diagram that utilizes the thread plug product of common power (being IEC sheet pin) among Fig. 1 as shown in Figure 2, this plug comprises power line (power line is positioned at an end in terminal screw hole 12) and two reeds that are connected with described power line, the contact-making surface of two reeds between interface section 8 is narrow, be a contact, and the mid portion 11 of two reeds is smoother, can cause like this contact point not firm, get loose easily.
Because switching pulse power supply and digital circuit are adopted in the extensive use of modern electronic technology in a large number, the alternating current network has been subjected to serious pollution, is the too many high order harmonic component that superposeed above the sinusoidal wave alternating current originally, the serious distortion of waveform.So on the electricity consumption audio frequency apparatus, generally need to install power-supply filter,, improve signal to noise ratio to prevent external interference.
And power unit is inseparable with signal processing, amplifying circuit, and signal even can be regarded as the element that circulates in power unit many times.Therefore, all elements of power supply, AC/DC converting member, transformer, power line etc. all can influence the running and the performance of audio frequency apparatus.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, a kind of power line and plug that improves the audio frequency and video transmission is provided, can make sound equipment, video appliances improves power supply supply efficiency of transmission, the power supply circulation is accelerated to quicken, and has the effect of filter, compares with normal power cord, except in anti-external interference, leach clutter, improve aspects such as signal to noise ratio significant improvement is arranged, also improve the sound clarity degree, lower distortion rate, strengthen dynamic range.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of power line that improves the audio frequency and video transmission, comprise gum cover and the sub-thread ground wire or gummed ground wire (calling " ground wire " in the following text), sub-thread live wire or gummed live wire (calling " live wire " in the following text) and sub-thread zero line or the gummed zero line (calling " zero line " in the following text) that wrap up with gum cover, space between described zero line, described ground wire and the described live wire is provided with inserts, and the area of section of described live wire is greater than the area of section of described zero line or described ground wire.
In a kind of power line that improves audio frequency and video transmission described in the utility model, the ratio of the area of section of described live wire and the area of section of described zero line or described ground wire was more than or equal to 2: 1.
In a kind of power line that improves audio frequency and video transmission described in the utility model, described live wire is made up of the gummed lead more than one at least.
In a kind of power line that improves audio frequency and video transmission described in the utility model, the quantity of described live wire is 2-5 thigh or more.
In a kind of power line that improves audio frequency and video transmission described in the utility model, the section radius of described live wire is 0.1CM-0.6CM.
In a kind of power line that improves audio frequency and video transmission described in the utility model, the skin of described gum cover is provided with gauze screen, and the skin of described gauze screen has additional one deck gum cover layer again.
The utility model also discloses a kind of power-line plug that improves the audio frequency and video transmission simultaneously, described plug comprises power line and two reeds that are connected with described power line, described power line comprises gum cover and the ground wire that wraps up with gum cover, live wire and zero line, space between described zero line, described gummed ground wire and the described live wire is provided with inserts, it is characterized in that the area of section of described live wire is greater than the area of section of described zero line or described ground wire; Described two reeds are parallel to each other in the interface section.
In a kind of power-line plug that improves audio frequency and video transmission described in the utility model, respectively be provided with the high-tension rubber that is used to compress described reed in the both sides of described interface section.
In a kind of power-line plug that improves audio frequency and video transmission described in the utility model, the middle part of described two reeds slopes inwardly from bottom to top.
Implement the utility model, make power transmission line itself have the effect of filter, compare in anti-external interference with normal power cord, leach clutter, improve aspects such as signal to noise ratio significant improvement is arranged.And, the utility model is applied to can improve the power delivery efficient of power consumption equipments such as sound equipment, video appliances in the audio frequency and video equipment, make that the interior flow of charge flux density of line increases, velocity of liquid assets is accelerated.Can improve the frequency response and the transient response of audio frequency apparatus on sense of hearing, more balance, smoothness, transparency are better to make the sound come out behind described power line, can also improve the sound clarity degree simultaneously, reduce distortion rate, strengthen dynamic range.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a normal power cord structural representation in the prior art;
Fig. 2 is based on the thread plug product of common power schematic diagram in the prior art;
Fig. 3 is the frequency response schematic diagram of normal power cord in the prior art;
Fig. 4 is the square-wave response schematic diagram of normal power cord in the prior art;
Fig. 5 is the structural representation of power line described in the utility model;
Fig. 6 is the structural representation of another preferred embodiment of power line described in the utility model;
Fig. 7 is based on the thread plug product of power supply described in the utility model schematic diagram;
Fig. 8 is the frequency response schematic diagram of power line described in the utility model;
Fig. 9 is the square-wave response schematic diagram of power line described in the utility model.
Internal layer gum cover 1, ground wire 2, live wire 3, zero line 4, gauze screen 5, outer gum cover 6, inserts 7, interface section 8, high-tension rubber 9, reed 10, a position 11, terminal screw hole 12.
Embodiment
As shown in Figure 5, a kind of by improving power delivery impedance (be AC power damping control technology, be called for short ACDP), and then improve the power line of audio frequency and video transmission, comprise internal layer gum cover 1 and the ground wire 2 that wraps up with internal layer gum cover 1, live wire 3 and zero line 4.The area of section of live wire 3 is greater than the area of section of zero line 4 or ground wire 2, i.e. the impedance sum of impedance of zero line 4 and ground wire 2 is more than or equal to the impedance of live wire 3.If be formulated, as follows:
L represents live wire, and N represents zero line, and G represents ground wire, then L Ω＜=N Ω+G Ω.
Wherein, the skin of internal layer gum cover 1 is respectively arranged with gauze screen 5, and the skin of gauze screen 5 is provided with outer gum cover 6.Space between zero line 4, ground wire 2 and the live wire 3 is provided with inserts 7.
Wherein, power line comprises one zero line 4, one ground wire 2 and one above live wire 3 at least.Wherein, the quantity of live wire 3 is not limit, and the core area of section is not limit, and in the preferred embodiment, the quantity of live wire 3 can be 2-5 thigh or more.
As shown in Figure 6, power line comprises one zero line 4, one ground wire 2 and one live wire 3, and the ratio of the area of section of live wire 3 and the area of section of ground wire 2 or zero line 4 was more than or equal to 2: 1.In a preferred embodiment, the section radius of live wire 3 is 0.1CM-0.6CM.
The above-mentioned power line that is used for improving the power delivery impedance can be applicable to the attaching plug product, as shown in Figure 9.Power-line plug described in the present embodiment (being IEC sheet pin) comprises that 10, two reeds 10 of power line and the reed that is connected with power line 8 are parallel to each other in the interface section, makes contact-making surface bigger like this, is not easy to get loose.The middle part 11 that 8 both sides respectively are provided with 9, two reeds 10 of high-tension rubber that are used to compress described reed in the interface section slopes inwardly from bottom to top.
The power line that is used to improve the power delivery impedance described in the utility model is specially adapted to the power transmission line of single-phase alternating current.Because the impedance of zero line and the impedance sum of ground wire are less than or equal to the impedance of live wire, make audio frequency apparatus that following advantage be arranged:
Comparison diagram 7 and Fig. 3, Fig. 8 and Fig. 4 be as can be known:
Power abundant (frequency response of power line described in the utility model has more 0.1-2.0db than the power output of the frequency response of normal power cord); Transient response is faster; Frequency response is more straight; Distortion is lower.
And, also have time-delay and reduce; Phase drift reduces; Music is lively, details is enriched, give great volume and noise-free.And because the minimizing on a large scale of high order harmonic component, transmission line noise specific energy is effectively promoted, be applied to audio frequency apparatus can expand sound field, improve extend, the penetrating degree of sound field increases greatly etc.
Claims (9)
1. one kind is improved the power line that audio frequency and video are transmitted, comprise gum cover and the sub-thread ground wire or gummed ground wire, sub-thread live wire or gummed live wire and sub-thread zero line or the gummed zero line that wrap up with gum cover, space between described zero line, described ground wire and the described live wire is provided with inserts, it is characterized in that the area of section of described live wire is greater than the area of section of described zero line or described ground wire.
2. a kind of power line that improves audio frequency and video transmission according to claim 1 is characterized in that, the ratio of the area of section of described live wire and the area of section of described zero line or described ground wire was more than or equal to 2: 1.
3. a kind of power line that improves audio frequency and video transmission according to claim 1 and 2 is characterized in that, described live wire is made up of the gummed lead more than one at least.
4. a kind of power line that improves the audio frequency and video transmission according to claim 3 is characterized in that the quantity of described live wire is 2-5 thigh or more.
5. a kind of power line that improves the audio frequency and video transmission according to claim 1 and 2 is characterized in that the section radius of described live wire is 0.1CM-0.6CM.
6. a kind of power line that improves the audio frequency and video transmission according to claim 1 is characterized in that the skin of described gum cover is provided with gauze screen, and the skin of described gauze screen has additional one deck gum cover layer again.
7. one kind based on the described a kind of power-line plug that improves audio frequency and video transmission of claim 1, described plug comprises power line and two reeds that are connected with described power line, described power line comprises gum cover and the ground wire that wraps up with gum cover, live wire and zero line, space between described zero line, described ground wire and the described live wire is provided with inserts, it is characterized in that the area of section of described live wire is greater than the area of section of described zero line or described ground wire; Described two reeds are parallel to each other in the interface section.
8. a kind of power-line plug that improves the audio frequency and video transmission according to claim 7 is characterized in that, respectively is provided with the high-tension rubber that is used to compress described reed in the both sides of described interface section.
9. according to claim 7 or 8 described a kind of power-line plugs that improve the audio frequency and video transmission, it is characterized in that the middle part of described two reeds slopes inwardly from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720140252XU CN201111977Y (en) | 2007-02-15 | 2007-02-15 | Supply line and plug for improving audio video transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720140252XU CN201111977Y (en) | 2007-02-15 | 2007-02-15 | Supply line and plug for improving audio video transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201111977Y true CN201111977Y (en) | 2008-09-10 |
Family
ID=39963721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720140252XU Expired - Lifetime CN201111977Y (en) | 2007-02-15 | 2007-02-15 | Supply line and plug for improving audio video transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201111977Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225281A (en) * | 2018-03-02 | 2019-09-10 | 杭州海康威视数字技术股份有限公司 | Composite video power cable, cable-assembly and anti-interference analog video systems |
-
2007
- 2007-02-15 CN CNU200720140252XU patent/CN201111977Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225281A (en) * | 2018-03-02 | 2019-09-10 | 杭州海康威视数字技术股份有限公司 | Composite video power cable, cable-assembly and anti-interference analog video systems |
| CN110225281B (en) * | 2018-03-02 | 2023-04-28 | 杭州海康威视数字技术股份有限公司 | Combined video power cable, cable assembly and anti-interference analog video system |
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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: 20080910 |