CN201504116U - Outdoor communication power source - Google Patents
Outdoor communication power source Download PDFInfo
- Publication number
- CN201504116U CN201504116U CN2009201348079U CN200920134807U CN201504116U CN 201504116 U CN201504116 U CN 201504116U CN 2009201348079 U CN2009201348079 U CN 2009201348079U CN 200920134807 U CN200920134807 U CN 200920134807U CN 201504116 U CN201504116 U CN 201504116U
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- CN
- China
- Prior art keywords
- battery pack
- negative pole
- contactor
- control circuit
- power supply
- 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 - Lifetime
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Abstract
The utility model relates to an outdoor communication power source, which comprises a battery pack, an alternating current power supply source and a magnetic retaining contactor. The battery pack and the alternating current power supply are parallelly connected to two ends of an external load, the magnetic retaining contactor is used for conducting on or off a loop of the battery pack and comprises a contactor control circuit and a main contact switch, wherein a positive pole of the contactor control circuit is coupled to a positive pole of the battery pack, and the main contact switch is connected between a negative pole of the battery pack and the load. The outdoor communication power source is characterized in that a connecting node of a negative pole of the contactor control circuit and the negative pole of the battery pack is located between the main contact switch and the negative pole of the battery pack. Because the negative pole of the contactor control circuit is not connected with the negative pole of the battery pack via the main contact switch, after batteries are in power failure (the main contact switch is switched off), the contactor control circuit still can be in live line work. The outdoor communication power source resolves problems that the contactor can not be switched off reliably, and the battery packs can be possibly damaged caused by over discharge.
Description
Technical field
The utility model relates to communication power supply, more particularly, relates to a kind of outdoor communication power supply that can carry out effectively descending electric control to the magnetic latching contactor of battery.
Background technology
The outdoor communication power supply mainly is supporting outdoor communication base station; characteristics such as therefore have that website disperses, power grid quality is poor, interruption duration is long and frequent; therefore the outdoor power system system all has been equipped with battery in support; but damage battery in order to prevent battery transition discharge; need descend electric control to battery; promptly after exchanging power failure, when cell voltage is lower than certain default definite value, disconnect the purpose that the powered battery loop has reached the protection battery by magnetic latching contactor.For energy-conserving and environment-protective, adopt magnetic latching contactor conduct electric control actuator down, but there are the following problems.In order to guarantee no longer discharge behind the electricity under the battery, the outdoor communication power supply mainly adopts " suicide " electric control mode down, be under the battery behind the electricity, power-supply system all there has not been electricity (comprising electric control circuit down), need to exchange once more and just can resume work behind the incoming call, and magnetic latching contactor needs 200ms～1s pulse control waveform, could guarantee that its contact disconnects reliably.Owing to adopt suicide control mode, when contactor disconnected, control circuit had not had electricity yet, so control circuit can't provide complete pulse control waveform, just can not guarantee that also magnetic latching contactor disconnects reliably, and then can not guarantee that the powered battery loop disconnects reliably.
In the existing as shown in Figure 1 outdoor communication power supply, after the AC interruptions by battery-powered, when electricity is preset definite value under battery voltage is lower than, the contactor control circuit sends control impuls, the main contacts switch is disconnected, reach the purpose of cutting off the battery pack loop, but when the main contacts switch disconnects, also the electricity went off for the contactor control circuit, therefore the contactor control circuit can not provide complete control impuls (for guaranteeing the magnetic latching contactor action message, contactor line bag need add the impulse waveform of 200ms～1s), so just can not guarantee that magnetic latching contactor disconnects reliably.
The utility model content
The technical problems to be solved in the utility model is, in the outdoor communication power supply at prior art, when magnetic latching contactor disconnects, control circuit has not had electricity yet, therefore control circuit can't provide complete pulse control waveform, just can not guarantee that also magnetic latching contactor disconnects reliably, and then can not guarantee defective such as powered battery loop disconnection reliably, a kind of outdoor communication power supply is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of outdoor communication power supply, comprise the battery pack and the AC-powered power supply that are connected in the external loading two ends in parallel, and be used for conducting or turn-off the magnetic latching contactor in described battery pack loop; Described magnetic latching contactor comprises contactor control circuit and main contacts switch, wherein, the positive pole of described contactor control circuit is coupled to the positive pole of battery pack, described main contacts switch is connected between the negative pole and described load of battery pack, and the connected node of the negative pole of described contactor control circuit and the negative pole of battery pack is between the negative pole of described main contactor switch and battery pack.
In outdoor communication power supply described in the utility model, between the negative pole of described contactor control circuit and described connected node, be provided with auxiliary contact switch.
In outdoor communication power supply described in the utility model, described magnetic latching contactor also comprises storage capacitor, and its positive pole and negative pole are coupled to the positive pole and the negative pole of described contactor control circuit respectively.
In outdoor communication power supply described in the utility model, described magnetic latching contactor also comprises the first unidirectional conduction device and the second unidirectional conduction device; Wherein, the input of the described first unidirectional conduction device and the second unidirectional conduction device all is coupled to the negative pole of described contactor control circuit, and the output of the first unidirectional conduction device is coupled to the negative pole of described battery pack by described main contacts switch; The output of the second unidirectional conduction device is coupled to the negative pole of described storage capacitor.
In outdoor communication power supply described in the utility model, the described first unidirectional conduction device and the second unidirectional conduction device are diode.
Implement outdoor communication power supply of the present utility model, has following beneficial effect: because the negative pole of contactor control circuit is not the negative pole that is connected to battery pack through the main contacts switch, make electric back (disconnection of main contacts switch) under the battery that the contactor control circuit still can charged work.Because auxiliary contact switch is set, make main contacts switch and auxiliary contact switch successively disconnect in the mode of interval certain hour, thereby after making that the main contacts switch disconnects, but contactor control circuit multidimensional is held the output time of one section pulse; Owing to be provided with storage capacitor, after making that auxiliary contact switch disconnects, power to the contactor control circuit by storage capacitor, further, by two individual event conduction devices are set, guaranteed that storage capacitor can only guarantee that output control pulse meets the requirements of width to the discharge of contactor control circuit, thereby guarantee that contactor disconnects reliably, solved contactor and can not reliably disconnect the problem that to be damaged by dark over-discharge can with battery pack.
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 the circuit theory diagrams of prior art outdoor communication power supply;
Fig. 2 is the circuit theory diagrams of the utility model outdoor communication power supply first embodiment;
Fig. 3 is the circuit theory diagrams of the utility model outdoor communication power supply second embodiment.
Embodiment
As shown in Figure 2, in outdoor communication power supply first embodiment of the present utility model, it comprises battery pack and the AC-powered power supply that is connected in the external loading two ends in parallel, and is used for conducting or turn-offs the magnetic latching contactor in battery pack loop; This magnetic latching contactor comprises contactor control circuit and main contacts switch, wherein, the positive pole of contactor control circuit is coupled to the positive pole of battery pack, the main contacts switch is connected between the negative pole and load of battery pack, innovative point of the present utility model is that the connected node of the negative pole of contactor control circuit and the negative pole of battery pack is between the negative pole of main contactor switch and battery pack.In this embodiment, the connected node of the power cathode of contactor control circuit and battery pack negative pole is positioned at the rear end of main contacts switch, rather than between the front end of negative busbar and main contacts switch, like this, behind electricity under the battery pack (disconnection of main contacts switch), the still charged work of contactor control circuit.The technical scheme of this embodiment is not only simple, can also solve the problem that technical scheme shown in Figure 1 exists, be after the main contacts switch disconnects, the contactor control circuit can not provide complete control impuls, but this technical scheme also has significant disadvantages: because the characteristic of outdoor website, the situation that the long-term outage of website may occur, at this moment, the contactor control circuit can make the battery over-discharge can put (low discharging current is bigger to the harm of battery) and damage battery, and this depends on the power consumption and the interruption duration of control circuit.
As shown in Figure 3 among the utility model outdoor communication power supply second embodiment, except providing the power supply for the contactor control circuit by negative busbar, also between the negative pole of contactor control circuit and described connected node, be provided with auxiliary contact switch, it utilizes auxiliary contact switch the second road power supply to be provided for the contactor control circuit, further, storage capacitor C1 also is set, make this second road power supply also give storage capacitor C1 charging simultaneously, after making that auxiliary contact switch disconnects, power to the contactor control circuit by this storage capacitor C1, but in order to guarantee that storage capacitor C1 only to the discharge of contactor control circuit, further is provided with the first unidirectional conduction device and the second unidirectional conduction device; Wherein, the input of the first unidirectional conduction device and the second unidirectional conduction device all is coupled to the negative pole of contactor control circuit, and the output of the first unidirectional conduction device is coupled to the negative pole of described battery pack by the main contacts switch; The output of the second unidirectional conduction device is coupled to the negative pole of described storage capacitor.In a preferred embodiment, this first unidirectional conduction device and the second unidirectional conduction device are diode, thereby can isolate negative busbar (48V) with the negative pole of battery pack by diode D1, D2.
The operation principle of technical scheme as shown in Figure 3 is: after system powers on, the DC power supply of AD/DC rectification module output-48V, the contactor control circuit sends control impuls then, main contacts switch, auxiliary contact switch closure, system enters normal operating conditions, and storage capacitor C1 also is in charged state; After the AC dump, battery power discharge, when cell voltage is lower than default definite value, the contactor control circuit sends down the electric control pulse, the main contacts switch disconnects earlier, since auxiliary contact switch with several milliseconds on hysteresis main contacts switch the time separated, so just can multidimensional hold the output time of one section pulse, in addition because the effect of storage capacitor C1, after auxiliary contact switch disconnects, power (owing to diode D1 to the contactor control circuit by storage capacitor C1, the effect of D2, assurance capacitor C 1 can only be discharged to the contactor control circuit), guarantee that output control pulse meets the requirements of width, thereby guarantee that this magnetic latching contactor disconnects reliably, can not reliably disconnect the problem that to be damaged by dark over-discharge can with battery pack thereby can solve magnetic latching contactor.
The utility model describes by several specific embodiments, it will be appreciated by those skilled in the art that, under the situation that does not break away from the utility model scope, can also carry out various conversion and be equal to alternative the utility model.In addition, at particular condition or concrete condition, can make various modifications to the utility model, and not break away from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the utility model claim scope.
Claims (5)
1. an outdoor communication power supply comprises the battery pack and the AC-powered power supply that are connected in the external loading two ends in parallel, and is used for conducting or turn-offs the magnetic latching contactor in described battery pack loop; Described magnetic latching contactor comprises contactor control circuit and main contacts switch, wherein, the positive pole of described contactor control circuit is coupled to the positive pole of battery pack, described main contacts switch is connected between the negative pole and described load of battery pack, it is characterized in that the connected node of the negative pole of described contactor control circuit and the negative pole of battery pack is between the negative pole of described main contactor switch and battery pack.
2. outdoor communication power supply according to claim 1 is characterized in that, is provided with auxiliary contact switch between the negative pole of described contactor control circuit and described connected node.
3. outdoor communication power supply according to claim 2 is characterized in that described magnetic latching contactor also comprises storage capacitor, and its positive pole and negative pole are coupled to the positive pole and the negative pole of described contactor control circuit respectively.
4. outdoor communication power supply according to claim 3 is characterized in that, described magnetic latching contactor also comprises the first unidirectional conduction device and the second unidirectional conduction device; Wherein, the input of the described first unidirectional conduction device and the second unidirectional conduction device all is coupled to the negative pole of described contactor control circuit, and the output of the first unidirectional conduction device is coupled to the negative pole of described battery pack by described main contacts switch; The output of the second unidirectional conduction device is coupled to the negative pole of described storage capacitor.
5. outdoor communication power supply according to claim 4 is characterized in that, the described first unidirectional conduction device and the second unidirectional conduction device are diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201348079U CN201504116U (en) | 2009-08-14 | 2009-08-14 | Outdoor communication power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201348079U CN201504116U (en) | 2009-08-14 | 2009-08-14 | Outdoor communication power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201504116U true CN201504116U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201348079U Expired - Lifetime CN201504116U (en) | 2009-08-14 | 2009-08-14 | Outdoor communication power source |
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| Country | Link |
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| CN (1) | CN201504116U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075004A (en) * | 2011-01-17 | 2011-05-25 | 中兴通讯股份有限公司 | Battery protection device and method of direct-current (DC) power supply |
| CN103072464A (en) * | 2013-02-05 | 2013-05-01 | 安徽安凯汽车股份有限公司 | High voltage system power-on and power-off control circuit of series hybrid vehicle and control method |
| CN109119974A (en) * | 2018-09-27 | 2019-01-01 | 东莞市广荣电子制品有限公司 | A kind of circuit of the static leakage current of reduction for EPS power supply |
| CN112895974A (en) * | 2021-01-19 | 2021-06-04 | 四川腾盾科技有限公司 | Method for increasing the reliability of an onboard battery system and corresponding operating method |
-
2009
- 2009-08-14 CN CN2009201348079U patent/CN201504116U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075004A (en) * | 2011-01-17 | 2011-05-25 | 中兴通讯股份有限公司 | Battery protection device and method of direct-current (DC) power supply |
| CN102075004B (en) * | 2011-01-17 | 2013-05-08 | 中兴通讯股份有限公司 | Battery protection device and method of direct-current (DC) power supply |
| CN103072464A (en) * | 2013-02-05 | 2013-05-01 | 安徽安凯汽车股份有限公司 | High voltage system power-on and power-off control circuit of series hybrid vehicle and control method |
| CN103072464B (en) * | 2013-02-05 | 2015-09-09 | 安徽安凯汽车股份有限公司 | A kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit and control method |
| CN109119974A (en) * | 2018-09-27 | 2019-01-01 | 东莞市广荣电子制品有限公司 | A kind of circuit of the static leakage current of reduction for EPS power supply |
| CN112895974A (en) * | 2021-01-19 | 2021-06-04 | 四川腾盾科技有限公司 | Method for increasing the reliability of an onboard battery system and corresponding operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park B2 building 1-4 floor, building 6-10 Patentee after: Vitamin Technology Co., Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: Aimosheng Network Energy Source Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |