CN204008881U - A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake - Google Patents
A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake Download PDFInfo
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- CN204008881U CN204008881U CN201420302293.4U CN201420302293U CN204008881U CN 204008881 U CN204008881 U CN 204008881U CN 201420302293 U CN201420302293 U CN 201420302293U CN 204008881 U CN204008881 U CN 204008881U
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- electric power
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- direct current
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Abstract
The utility model discloses a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, comprise some roads forceful electric power intake passage, each forceful electric power intake passage is all connected with rectifier bridge in turn, bleeder circuit, photoelectric coupled circuit, bleeder circuit comprises be in series the first resistance and the second resistance, one end of the first resistance is connected with the positive output end of rectifier bridge, the first resistance is connected with the junction of the second resistance and the positive input terminal of photoelectric coupled circuit, one end of the second resistance and the negative input end of photoelectric coupled circuit, the negative output terminal of rectifier bridge connects jointly, can two kinds of forceful electric power intakes of external alternating current-direct current, efficiently solve test site switching value matching problem, cost is low, easily realize, have a good application prospect.
Description
Technical field
The utility model relates to a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, belongs to power equipment detection technique field.
Background technology
At the secondary device of electric system for gathering the quantity of state such as on off state of an on-site electrical equipment.The operating voltage of opening entry loop of traditional secondary device is DC24V or DC48V, and once electrical equipment is put for ease of wiring and operation in scene, generally provide the switching value of alternating current 220V or direct current 220V to secondary device, in order to solve this matching problem, traditional way has: 1) the switching value electric pressure of change primary equipment, as make DC24V or DC48V etc. into, but the method circuit change more complicated, cost is high; 2) carry out voltage transitions by auxiliary reclay, but the price comparison of the method auxiliary reclay is high, is not easy to mass change; 3) change only support DC switch amount open into, such as increasing current-limiting resistance etc., but the method power dissipation ratio is larger, waste electric energy.
Utility model content
The purpose of this utility model is the matching problem of opening entry loop and primary equipment alternating current 220V or direct current 220V switching value that overcomes traditional secondary device, the entry loop of opening that is applicable to forceful electric power alternating current-direct current intake of the present utility model, can two kinds of forceful electric power intakes of external alternating current-direct current, efficiently solve test site switching value matching problem, cost is low, easily realize, have a good application prospect.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, it is characterized in that: the some roads forceful electric power intake passage that comprises an on-site electrical equipment output, each forceful electric power intake passage is all connected with rectifier bridge in turn, bleeder circuit, photoelectric coupled circuit, described bleeder circuit comprises be in series the first resistance and the second resistance, one end of described the first resistance is connected with the positive output end of rectifier bridge, described the first resistance is connected with the junction of the second resistance and the positive input terminal of photoelectric coupled circuit, one end of described the second resistance and the negative input end of photoelectric coupled circuit, the negative output terminal of rectifier bridge connects jointly.
Aforesaid a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, it is characterized in that: the junction of described the first resistance and the second resistance is also connected with smothing filtering electric capacity, the positive pole of described smothing filtering electric capacity is connected with the junction of the second resistance with the first resistance, and the negative pole of described smothing filtering electric capacity is connected with the negative output terminal of rectifier bridge.
Aforesaid a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, is characterized in that: each forceful electric power intake passage is connected with the positive input terminal of corresponding rectifier bridge, the negative input end of each rectifier bridge jointly by direct earth capacitance and shielding be connected.
Aforesaid a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, is characterized in that: the drive current of described photoelectric coupled circuit output is 1mA.
Aforesaid a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, is characterized in that: the quantity Wei San road of forceful electric power intake passage.
Aforesaid a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake, is characterized in that: forceful electric power intake passage comprises interchange forceful electric power intake or direct current forceful electric power intake.
The beneficial effects of the utility model are: the entry loop of opening that is applicable to forceful electric power alternating current-direct current intake of the present utility model, comprise some roads forceful electric power intake passage, each forceful electric power intake passage is all connected with rectifier bridge in turn, bleeder circuit, photoelectric coupled circuit, bleeder circuit comprises be in series the first resistance and the second resistance, one end of the first resistance is connected with the positive output end of rectifier bridge, the first resistance is connected with the junction of the second resistance and the positive input terminal of photoelectric coupled circuit, one end of the second resistance and the negative input end of photoelectric coupled circuit, the negative output terminal of rectifier bridge connects jointly, can two kinds of forceful electric power intakes of external alternating current-direct current, efficiently solve test site switching value matching problem, cost is low, easily realize, have a good application prospect.
Brief description of the drawings
Fig. 1 is the circuit diagram of opening entry loop that is applicable to forceful electric power alternating current-direct current intake of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The entry loop of opening that is applicable to forceful electric power alternating current-direct current intake of the present utility model, comprise some roads forceful electric power intake passage of an on-site electrical equipment output, each forceful electric power intake passage is all connected with rectifier bridge, bleeder circuit, photoelectric coupled circuit in turn, bleeder circuit comprises be in series the first resistance and the second resistance, one end of the first resistance is connected with the positive output end of rectifier bridge, the first resistance is connected with the junction of the second resistance and the positive input terminal of photoelectric coupled circuit, and one end of described the second resistance is connected jointly with the negative output terminal of the negative input end of photoelectric coupled circuit, rectifier bridge.
The junction of described the first resistance and the second resistance is also connected with smothing filtering electric capacity, and the positive pole of smothing filtering electric capacity is connected with the junction of the second resistance with the first resistance, and the negative pole of smothing filtering electric capacity is connected with the negative output terminal of rectifier bridge.
Each forceful electric power intake passage is connected with the positive input terminal of corresponding rectifier bridge, the negative input end of each rectifier bridge jointly by direct earth capacitance and shielding be connected.
The drive current of described photoelectric coupled circuit output is 1mA, can effectively drive optocoupler, avoids the damage of large electric current to optocoupler simultaneously.
The quantity Wei San road of described forceful electric power intake passage, comprises and exchanges forceful electric power intake or direct current forceful electric power intake.
As shown in Figure 1, the entry loop of opening that is applicable to forceful electric power alternating current-direct current intake of the present utility model, three forceful electric power are opened the circuit diagram into circuit path, the intake of external 220V AC or 220V DC, taking one of them passage as example, VB1 is rectifier bridge, complete the rectification work that exchanges forceful electric power, can directly pass through the upper brachium pontis of rectifier bridge for 220V DC direct current forceful electric power, 220V AC is converted to DC voltage by rectifier bridge, forceful electric power is by the dividing potential drop through resistance R I1 and resistance R P1 after rectifier bridge, low voltage is compared in conversion, after electric resistance partial pressure, the voltage of forceful electric power intake is less than 50V, carry out Filtering and smoothing by smothing filtering electric capacity EC1 again, can obtain the more stable electric pressure meeting the demands, RI1 in circuit and RP1 are with having realized certain metering function, in the time having the intake of 220V AC or 220V DC to be carried in the first pin of VB1, through above-mentioned current limliting, make drive current by photoelectric coupled circuit GD1 in 1mA left and right, and can effectively drive optocoupler, avoid the damage of large electric current to photoelectric coupled circuit simultaneously, the negative input end of three rectifier bridges jointly by direct earth capacitance CX1 with shielding be connected, there is good interference, ensure the accuracy of intake output.
In sum, the utility model, can two kinds of forceful electric power intakes of external alternating current-direct current, efficiently solve test site switching value matching problem, and cost is low, easily realize, and have a good application prospect.
More than show and described ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. one kind is applicable to the entry loop of opening of forceful electric power alternating current-direct current intake, it is characterized in that: the some roads forceful electric power intake passage that comprises an on-site electrical equipment output, each forceful electric power intake passage is all connected with rectifier bridge in turn, bleeder circuit, photoelectric coupled circuit, described bleeder circuit comprises be in series the first resistance and the second resistance, one end of described the first resistance is connected with the positive output end of rectifier bridge, described the first resistance is connected with the junction of the second resistance and the positive input terminal of photoelectric coupled circuit, one end of described the second resistance and the negative input end of photoelectric coupled circuit, the negative output terminal of rectifier bridge connects jointly.
2. a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake according to claim 1, it is characterized in that: the junction of described the first resistance and the second resistance is also connected with smothing filtering electric capacity, the positive pole of described smothing filtering electric capacity is connected with the junction of the second resistance with the first resistance, and the negative pole of described smothing filtering electric capacity is connected with the negative output terminal of rectifier bridge.
3. a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake according to claim 1, it is characterized in that: each forceful electric power intake passage is connected with the positive input terminal of corresponding rectifier bridge, the negative input end of each rectifier bridge jointly by direct earth capacitance and shielding be connected.
4. a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake according to claim 1, is characterized in that: the drive current of described photoelectric coupled circuit output is 1mA.
5. a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake according to claim 1, is characterized in that: the quantity Wei San road of forceful electric power intake passage.
6. a kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake according to claim 1 or 5, is characterized in that: forceful electric power intake passage comprises and exchanges forceful electric power intake or direct current forceful electric power intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302293.4U CN204008881U (en) | 2014-06-09 | 2014-06-09 | A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302293.4U CN204008881U (en) | 2014-06-09 | 2014-06-09 | A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204008881U true CN204008881U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302293.4U Expired - Fee Related CN204008881U (en) | 2014-06-09 | 2014-06-09 | A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake |
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| Country | Link |
|---|---|
| CN (1) | CN204008881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022001A (en) * | 2019-05-22 | 2019-07-16 | 特变电工智能电气有限责任公司 | A kind of distribution transformer Integral digital intelligent terminal |
-
2014
- 2014-06-09 CN CN201420302293.4U patent/CN204008881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022001A (en) * | 2019-05-22 | 2019-07-16 | 特变电工智能电气有限责任公司 | A kind of distribution transformer Integral digital intelligent terminal |
| CN110022001B (en) * | 2019-05-22 | 2024-05-24 | 特变电工智能电气有限责任公司 | Integrated digital intelligent terminal of distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |