CN103904739A - Communication power supply circuit and manufacturing method - Google Patents
Communication power supply circuit and manufacturing method Download PDFInfo
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- CN103904739A CN103904739A CN201410114045.1A CN201410114045A CN103904739A CN 103904739 A CN103904739 A CN 103904739A CN 201410114045 A CN201410114045 A CN 201410114045A CN 103904739 A CN103904739 A CN 103904739A
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Abstract
The invention discloses a communication power supply circuit and a manufacturing method. The communication power supply circuit comprises a battery, a battery lower-voltage power down contactor, a necessary load, a load low-voltage power down contactor, an unnecessary load and a rectifying module. The rectifying module is used for supplying power to the battery, the necessary load and the unnecessary load. The battery is used for supplying power to the necessary load and the unnecessary load when the rectifying module can not supply power. The load low-voltage power down contactor is used for disconnecting a power supply circuit through which the battery supplies power to the unnecessary load when the battery supplies power and the voltage of the battery is smaller than the preset largest threshold value. The battery low-voltage power down contactor is used for disconnecting a power supply circuit through which the battery supplies power to the necessary load and the unnecessary load when the battery supplies power and the voltage of the battery is smaller than the preset smallest threshold value. By means of the communication power supply circuit and the manufacturing method, electric energy can be saved.
Description
Technical field
The present invention relates to electronic circuit technology field, be specifically related to a kind of communication power supply circuit and manufacture method.
Background technology
Communication power supply is the critical infrastructures of whole communication network, the operation of its decision communication network, and therefore communication power supply is extremely important.Conventionally under two-stage, the load of the communication power supply of electricity comprises necessary load and inessential load, wherein, the performance of necessary load effect communication equipment but power consumption is little, inessential load does not affect the performance of communication equipment but power consumption is large.At present, common communication power supply circuit comprises battery, shunt, necessary load, inessential load, rectification module, electricity (battery low voltage down under battery low-voltage, BLVD) contactor, electricity (load low voltage down under load low-voltage, LLVD) contactor and fuse, but the shortcoming of common communication power supply circuit is: in the time that rectification module is given necessary load and inessential load supplying, inessential load circuit is: rectification module-LLVD contactor-inessential load, because the resistance electric current large and this loop of LLVD contactor is larger, cause the loss of power in this loop larger.
Summary of the invention
The invention discloses a kind of communication power supply circuit and manufacture method, for saves energy.
First aspect present invention discloses a kind of communication power supply circuit, comprises electric contactor, inessential load, rectification module under electric contactor under battery, battery low-voltage, necessary load, load low-voltage, wherein:
The positive pole of described battery connects respectively the first end of described necessary load, the first output 1 of the first end of described inessential load and described rectification module, the negative pole of described battery connects the first end of electric contactor under described battery low-voltage, under described battery low-voltage, the second end of electric contactor connects respectively the first end of electric contactor under the second end of described necessary load and described load low-voltage, under described load low-voltage, the second end of electric contactor connects respectively the second end of described inessential load and the second output 2 of described rectification module, the first input end 3 of described rectification module with the second input 4 for being connected input voltage, described rectification module is used for to described battery, described necessary load and described inessential load supplying, described battery, in the time that described rectification module cannot be powered, is given described necessary load and described inessential load supplying, when electric contactor is preset maximum threshold voltage for being less than when the voltage of described powered battery and described battery under described load low-voltage, disconnect the current supply circuit of described battery to described inessential load supplying, when electric contactor is preset minimum threshold voltage for being less than when the voltage of described powered battery and described battery under described battery low-voltage, disconnect the current supply circuit of described battery to described necessary load and described inessential load supplying.
In conjunction with first aspect present invention, in the possible implementation of the first of first aspect present invention, described communication power supply circuit also comprises shunt, wherein:
The first end of described shunt connects the negative pole of described battery, and the second end of described shunt connects the first end of electric contactor under described battery low-voltage; Described shunt is for monitoring the electric current that flows to or flow out described battery.
In conjunction with the possible implementation of the first of first aspect present invention, in the possible implementation of the second of first aspect present invention, described communication power supply circuit also comprises the first fuse, wherein:
The first end of described the first fuse connects the negative pole of described battery, and the second end of described the first fuse connects the first end of described shunt; Described the first fuse is for the protection of described battery.
In conjunction with the possible implementation of the second of first aspect present invention, in the third possible implementation of first aspect present invention, described communication power supply circuit also comprises the second fuse, wherein:
The first end of described the second fuse connects the second end of described necessary load, and the second end of described the second fuse connects respectively the first end of electric contactor under the second end of electric contactor under described battery low-voltage and described load low-voltage; Described the second fuse is for the protection of described necessary load.
In conjunction with the third possible implementation of first aspect present invention, in the 4th kind of possible implementation of first aspect present invention, described communication power supply circuit also comprises the 3rd fuse, wherein:
The first end of described the 3rd fuse connects the second end of described inessential load, and the second end of described the 3rd fuse connects respectively the second end of electric contactor under described load low-voltage and the second output 2 of described rectification module; Described the 3rd fuse is for the protection of described inessential load.
In conjunction with any the possible implementation in four kinds of the first to the of first aspect present invention or first aspect, in the 5th kind of possible implementation of first aspect present invention, described rectification module comprises:
Transformer T1, rectifier diode D1, D2, D3, D4, filter capacitor C1, electric pressure converter VC1, wherein:
Described transformer T1 primary winding two ends are used for connecting input voltage, the first end of described transformer T1 auxiliary winding connects respectively the positive pole of described rectifier diode D1 and the negative pole of described rectifier diode D4, the negative pole of described rectifier diode D1 connects respectively the negative pole of described rectifier diode D2, the voltage input end Vin of the positive pole of described filter capacitor C1 and described electric pressure converter VC1, the positive pole of described rectifier diode D2 connects respectively the negative pole of described rectifier diode D3 and the second end of described transformer T1 auxiliary winding, the positive pole of described rectifier diode D3 connects respectively the positive pole of described rectifier diode D4, the negative pole of described filter capacitor C1, the second end of electric contactor under the ground end Gnd of described electric pressure converter VC1 and described load low-voltage, the voltage output end Out of described electric pressure converter VC1 connects the positive pole of described battery.
In conjunction with the 5th kind of possible implementation of first aspect present invention, in the 6th kind of possible execution mode of first aspect present invention, under described battery low-voltage, electric contactor is magnetic latching contactor.
In conjunction with the 5th kind of possible implementation of first aspect present invention, in the 7th kind of possible execution mode of first aspect present invention, under described load low-voltage, electric contactor is magnetic latching contactor.
Second aspect present invention discloses a kind of communication power supply circuit manufacture method, and described method comprises:
The positive pole of battery is connected with the first end of the first end of necessary load, inessential load and the first output 1 of rectification module respectively;
The negative pole of described battery is connected with the first end of electric contactor under battery low-voltage, the second end of electric contactor under described battery low-voltage is connected with the first end of electric contactor under the second end of described necessary load and load low-voltage respectively;
The second end of electric contactor under described load low-voltage is connected with the second end of described inessential load and the second output 2 of described rectification module respectively, the first input end 3 of described rectification module with the second input 4 for being connected input voltage;
Described rectification module is given described battery, described necessary load and described inessential load supplying; When described battery cannot be powered at described rectification module, give described necessary load and described inessential load supplying; Under described load low-voltage, electric contactor, in the time that the voltage of described powered battery and described battery is less than default maximum threshold voltage, disconnects the current supply circuit of described battery to described inessential load supplying; Under described battery low-voltage, electric contactor, in the time that the voltage of described powered battery and described battery is less than default minimum threshold voltage, disconnects the current supply circuit of described battery to described necessary load and described inessential load supplying.
In conjunction with second aspect present invention, in the possible implementation of the first of second aspect present invention, described method also comprises:
The first end of shunt is connected with the negative pole of described battery, the second end of described shunt is connected with the first end of electric contactor under described battery low-voltage; Described shunt is for monitoring the electric current that flows to or flow out described battery.
In conjunction with the possible implementation of the first of second aspect present invention, in the possible implementation of the second of second aspect present invention, described method also comprises:
The first end of the first fuse is connected with the negative pole of described battery, the second end of described the first fuse is connected with the first end of described shunt; Described the first fuse is for the protection of described battery.
In conjunction with the possible implementation of the second of second aspect present invention, in the third possible implementation of second aspect present invention, described method also comprises:
The first end of the second fuse is connected with the second end of described necessary load, the second end of described the second fuse is connected with the first end of electric contactor under the second end of electric contactor under described battery low-voltage and described load low-voltage respectively; Described the second fuse is for the protection of described necessary load.
In conjunction with the third possible implementation of second aspect present invention, in the 4th kind of possible implementation of second aspect present invention, described method also comprises:
The first end of the 3rd fuse is connected with the second end of described inessential load, the second end of described the 3rd fuse is connected with the second end of electric contactor under described load low-voltage and the second output 2 of described rectification module respectively; Described the 3rd fuse is for the protection of described inessential load.
In conjunction with any the possible implementation in four kinds of the first to the of second aspect present invention or second aspect, in the 5th kind of possible implementation of second aspect present invention, described rectification module implementation comprises:
The first end of transformer T1 auxiliary winding is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4 respectively, and described transformer T1 primary winding two ends are used for connecting input voltage;
The negative pole of described rectifier diode D1 is connected with negative pole, the positive pole of filter capacitor C1 and the voltage input end Vin of electric pressure converter VC1 of rectifier diode D2 respectively;
The positive pole of described rectifier diode D2 is connected with the negative pole of rectifier diode D3 and the second end of described transformer T1 auxiliary winding respectively;
The positive pole of described rectifier diode D3 is connected with the second end of electric contactor under the ground end Gnd of the negative pole of the positive pole of described rectifier diode D4, described filter capacitor C1, described electric pressure converter VC1 and described load low-voltage respectively;
The voltage output end Out of described electric pressure converter VC1 is connected with the positive pole of described battery.
In conjunction with the 5th kind of possible implementation of second aspect present invention, in the 6th kind of possible execution mode of second aspect present invention, under described battery low-voltage, electric contactor is magnetic latching contactor.
In conjunction with the 5th kind of possible implementation of second aspect present invention, in the 7th kind of possible execution mode of second aspect present invention, under described load low-voltage, electric contactor is magnetic latching contactor.
In the embodiment of the present invention, rectification module is used for to battery, necessary load and inessential load supplying; Battery, in the time that rectification module cannot be powered, is given necessary load and inessential load supplying; When electric contactor is preset maximum threshold voltage for being less than when the voltage of powered battery and battery under load low-voltage, disconnect the current supply circuit of battery to inessential load supplying; When electric contactor is preset minimum threshold voltage for being less than when the voltage of powered battery and battery under battery low-voltage, disconnect the current supply circuit of battery to necessary load and inessential load supplying.In the embodiment of the present invention, in the time that rectification module is powered, inessential load circuit is: rectification module-inessential load, for the larger inessential load supplying loop of electric current, except the loss of necessary circuit and relevant protection device, without any excess loss, thus can saves energy; In addition, when after electricity under LLVD contactor, battery will disconnect with being connected also of rectification module, avoid rectification module loop to continue the voltage of consuming cells, thereby can saves energy.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structure chart of the disclosed a kind of communication power supply circuit of the embodiment of the present invention;
Fig. 2 is the structure chart of the disclosed another kind of communication power supply circuit of the embodiment of the present invention;
Fig. 3 is the flow chart of the disclosed a kind of communication power supply circuit manufacture method of the embodiment of the present invention;
Fig. 4 is the flow chart of the disclosed another kind of communication power supply circuit manufacture method of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of communication power supply circuit and manufacture method, for saves energy.Below be elaborated respectively.
Refer to Fig. 1, Fig. 1 is the structure chart of the disclosed a kind of communication power supply circuit of the embodiment of the present invention.As shown in Figure 1, this communication power supply circuit can comprise electric contactor, inessential load, rectification module under electric contactor under battery, battery low-voltage, necessary load, load low-voltage, wherein:
The positive pole of battery connects respectively the first end of the first end of necessary load, inessential load and the first output 1 of rectification module, the negative pole of battery connects the first end of electric contactor under battery low-voltage, under battery low-voltage, the second end of electric contactor connects respectively the first end of electric contactor under the second end of necessary load and load low-voltage, under load low-voltage, the second end of electric contactor connects respectively the second end of inessential load and the second output 2 of rectification module, the first input end 3 of rectification module with the second input 4 for being connected input voltage; Rectification module is used for to battery, necessary load and inessential load supplying; Battery, in the time that rectification module cannot be powered, is given necessary load and inessential load supplying; When electric contactor is preset maximum threshold voltage for being less than when the voltage of powered battery and battery under load low-voltage, disconnect the current supply circuit of battery to inessential load supplying; When electric contactor is preset minimum threshold voltage for being less than when the voltage of powered battery and battery under battery low-voltage, disconnect the current supply circuit of battery to necessary load and inessential load supplying.
Alternatively, the operation principle of the communication power supply circuit shown in Fig. 1 is: under normal circumstances, rectification module is to battery, necessary load and inessential load supplying, in the time that rectification module cannot be powered, battery is to important load and less important load supplying, in the time that the voltage of battery is more than or equal to default maximum threshold voltage, the voltage of battery can be worked for necessary load and inessential load simultaneously, when the voltage of battery is less than default maximum threshold voltage, and while being more than or equal to default minimum threshold voltage, the voltage of battery cannot be worked for necessary load and inessential load simultaneously, but can be for necessary loaded work piece, therefore electricity under LLVD contactor, disconnect the current supply circuit of battery to inessential load supplying, guarantee that necessary load normally works, under LLVD contactor, in electricity time, has also disconnected being connected of battery and rectification module, avoid battery-rectification module loop to continue the voltage of consuming cells, in the time that the voltage of battery is less than default minimum threshold voltage, the voltage of battery cannot supply necessary loaded work piece, therefore electricity under BLVD contactor, disconnect the current supply circuit of battery to necessary load supplying, avoid the running out voltage of battery, thereby can protect the life-span of battery.
In the described communication power supply circuit of Fig. 1, in the time that rectification module is powered, inessential load circuit is: rectification module-inessential load, for the larger inessential load supplying loop of electric current, except the loss of necessary circuit and relevant protection device, without any excess loss, thus can saves energy; In addition, when after electricity under LLVD contactor, battery will disconnect with being connected also of rectification module, avoid rectification module loop to continue the voltage of consuming cells, thereby can saves energy.
Refer to Fig. 2, Fig. 2 is the structure chart of the disclosed another kind of communication power supply circuit of the embodiment of the present invention.Wherein, the communication power supply circuit shown in Fig. 2 is that the communication power supply circuit shown in Fig. 1 is optimized and is obtained, and compared with the communication power supply circuit shown in Fig. 1, the communication power supply circuit shown in Fig. 2 can also comprise shunt, wherein:
The first end of shunt connects the negative pole of battery, and the second end of shunt connects the first end of electric contactor under battery low-voltage; Shunt is for monitoring the electric current that flows to or flow out battery.
Alternatively, shunt is connected to battery side, can monitor the electric current that flows to or flow out battery, thus voltage that can monitoring battery.Give necessary load and inessential load supplying when battery, the voltage that monitors battery is less than while presetting maximum threshold voltage, electricity under LLVD contactor, and the voltage that monitors battery is less than while presetting minimum threshold voltage, electricity under BLVD contactor.
As a kind of possible execution mode, the communication power supply circuit shown in Fig. 2 can also comprise the first fuse, wherein:
The first end of the first fuse connects the negative pole of battery, and the second end of the first fuse connects the first end of shunt; The first fuse is for the protection of battery.
Alternatively, fuse is fuse, and the first fuse is connected to battery side; in the time that rectification module is powered, if when flowing through the electric current of the first fuse and being greater than certain value, the first fuse will blow; avoid because the excessive battery that causes of electric current that flows to battery damages, thereby can protect battery.
As a kind of possible execution mode, the communication power supply circuit shown in Fig. 2 can also comprise the second fuse, wherein:
The first end of the second fuse connects the second end of necessary load, and the second end of the second fuse connects respectively the first end of electric contactor under the second end of electric contactor under battery low-voltage and load low-voltage; The second fuse is for the protection of necessary load.
Alternatively, the second fuse is connected to necessary load side, in the time that rectification module is powered; if when flowing through the electric current of the second fuse and being greater than certain value; the second fuse will blow, and avoid that the electric current of necessary load is excessive causes necessary load to damage owing to flowing through, thereby can protect necessary load.
As a kind of possible execution mode, the communication power supply circuit shown in Fig. 2 can also comprise the 3rd fuse, wherein:
The first end of the 3rd fuse connects the second end of inessential load, and the second end of the 3rd fuse connects respectively the second end of electric contactor under load low-voltage and the second output 2 of rectification module; The 3rd fuse is for the protection of inessential load.
Alternatively, the 3rd fuse is connected to inessential load side, in the time that rectification module is powered; if when flowing through the electric current of the 3rd fuse and being greater than certain value; the 3rd fuse will blow, and avoid that the electric current of necessary load is excessive causes inessential load to damage owing to flowing through, thereby can protect inessential load.
As a kind of possible execution mode, the rectification module that the communication power supply circuit shown in Fig. 2 comprises can comprise:
Transformer T1, rectifier diode D1, D2, D3, D4, filter capacitor C1, electric pressure converter VC1, wherein:
Transformer T1 primary winding two ends are used for connecting input voltage, the first end of transformer T1 auxiliary winding connects respectively the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4, the negative pole of rectifier diode D1 connects respectively the negative pole of rectifier diode D2, the voltage input end Vin of the positive pole of filter capacitor C1 and electric pressure converter VC1, the positive pole of rectifier diode D2 connects respectively the negative pole of rectifier diode D3 and the second end of transformer T1 auxiliary winding, the positive pole of rectifier diode D3 connects respectively the positive pole of rectifier diode D4, the negative pole of filter capacitor C1, the second end of electric contactor under the ground end Gnd of electric pressure converter VC1 and load low-voltage, the voltage output end Out of electric pressure converter VC1 connects the positive pole of battery.
Alternatively, the operation principle of rectification module is: the rectifier bridge that the alternating current of input forms by transformer T1 transformation with by rectifier diode D1, D2, D3, D4 is rectified into and becomes direct current, then by being converted to galvanic current after filter capacitor C1 filtering and electric pressure converter VC1 to battery, necessary load and inessential load supplying.
As a kind of possible execution mode, under battery low-voltage, electric contactor can be magnetic latching contactor.
Alternatively, magnetic latching contactor does not need to consume electric energy in the time powering on, therefore, and can saves energy.
As a kind of possible execution mode, under load low-voltage, electric contactor can be magnetic latching contactor.
In the described communication power supply circuit of Fig. 2, in the time that rectification module is powered, inessential load circuit is: rectification module-inessential load, for the larger inessential load supplying loop of electric current, except the loss of necessary circuit and relevant protection device, without any excess loss, thus can saves energy; In addition, when after electricity under LLVD contactor, battery will disconnect with being connected also of rectification module, avoid rectification module loop to continue the voltage of consuming cells, thereby can saves energy.
Refer to Fig. 3, Fig. 3 is the flow chart of the disclosed a kind of communication power supply circuit manufacture method of the embodiment of the present invention.As shown in Figure 3, this communication power supply circuit manufacture method can comprise the following steps.
S301, the positive pole of battery is connected with the first end of the first end of necessary load, inessential load and the first output 1 of rectification module respectively.
S302, the negative pole of battery is connected with the first end of electric contactor under battery low-voltage, the second end of electric contactor under battery low-voltage is connected with the first end of electric contactor under the second end of necessary load and load low-voltage respectively.
S303, the second end of electric contactor under load low-voltage is connected with the second end of inessential load and the second output 2 of rectification module respectively, the first input end 3 of rectification module with the second input 4 for being connected input voltage.
S304, rectification module are to battery, necessary load and inessential load supplying; When battery cannot be powered at rectification module, give necessary load and inessential load supplying; Under load low-voltage, electric contactor, in the time that the voltage of powered battery and battery is less than default maximum threshold voltage, disconnects the current supply circuit of battery to inessential load supplying; Under battery low-voltage, electric contactor, in the time that the voltage of powered battery and battery is less than default minimum threshold voltage, disconnects the current supply circuit of battery to necessary load and inessential load supplying.
Alternatively, rectification module is to battery, necessary load and inessential load supplying, in the time that rectification module cannot be powered, battery is to important load and less important load supplying, in the time that the voltage of battery is more than or equal to default maximum threshold voltage, the voltage of battery can be worked for necessary load and inessential load simultaneously, when the voltage of battery is less than default maximum threshold voltage, and while being more than or equal to default minimum threshold voltage, the voltage of battery cannot be worked for necessary load and inessential load simultaneously, but can be for necessary loaded work piece, therefore electricity under LLVD contactor, disconnect the current supply circuit of battery to inessential load supplying, guarantee that necessary load normally works, under LLVD contactor, in electricity time, has also disconnected being connected of battery and rectification module, avoid battery-rectification module loop to continue the voltage of consuming cells, in the time that cell voltage is less than default minimum threshold voltage, the voltage of battery cannot supply necessary loaded work piece, therefore electricity under BLVD contactor, disconnect the current supply circuit of battery to necessary load supplying, avoid the running out voltage of battery, thereby can protect the life-span of battery.
In the described communication power supply circuit manufacture method of Fig. 3, in the time that rectification module is powered, inessential load circuit is: rectification module-inessential load, for the larger inessential load supplying loop of electric current, except the loss of necessary circuit and relevant protection device, without any excess loss, thus can saves energy; In addition, when after electricity under LLVD contactor, battery will disconnect with being connected also of rectification module, avoid rectification module loop to continue the voltage of consuming cells, thereby can saves energy.
Refer to Fig. 4, Fig. 4 is the flow chart of the disclosed another kind of communication power supply circuit manufacture method of the embodiment of the present invention.As shown in Figure 4, this communication power supply circuit manufacture method can comprise the following steps.
S401, the positive pole of battery is connected with the first end of the first end of necessary load, inessential load and the first output 1 of rectification module respectively.
S402, the negative pole of battery is connected with the first end of electric contactor under battery low-voltage, the second end of electric contactor under battery low-voltage is connected with the first end of electric contactor under the second end of necessary load and load low-voltage respectively.
S403, the second end of electric contactor under load low-voltage is connected with the second end of inessential load and the second output 2 of rectification module respectively, the first input end 3 of rectification module with the second input 4 for being connected input voltage.
S404, rectification module are to battery, necessary load and inessential load supplying; When battery cannot be powered at rectification module, give necessary load and inessential load supplying; Under load low-voltage, electric contactor, in the time that the voltage of powered battery and battery is less than default maximum threshold voltage, disconnects the current supply circuit of battery to inessential load supplying; Under battery low-voltage, electric contactor, in the time that the voltage of powered battery and battery is less than default minimum threshold voltage, disconnects the current supply circuit of battery to necessary load and inessential load supplying.
Alternatively, rectification module is to battery, necessary load and inessential load supplying, in the time that rectification module cannot be powered, battery is to important load and less important load supplying, in the time that the voltage of battery is more than or equal to default maximum threshold voltage, the voltage of battery can be worked for necessary load and inessential load simultaneously, when the voltage of battery is less than default maximum threshold voltage, and while being more than or equal to default minimum threshold voltage, the voltage of battery cannot be worked for necessary load and inessential load simultaneously, but can be for necessary loaded work piece, therefore electricity under LLVD contactor, disconnect the current supply circuit of battery to inessential load supplying, guarantee that necessary load normally works, under LLVD contactor, in electricity time, has also disconnected being connected of battery and rectification module, avoid battery-rectification module loop to continue the voltage of consuming cells, in the time that cell voltage is less than default minimum threshold voltage, the voltage of battery cannot supply necessary loaded work piece, therefore electricity under BLVD contactor, disconnect the current supply circuit of battery to necessary load supplying, avoid the running out voltage of battery, thereby can protect the life-span of battery.
S405, the first end of shunt is connected with the negative pole of battery, the second end of shunt is connected with the first end of electric contactor under battery low-voltage; Shunt is for monitoring the electric current that flows to or flow out battery.
Alternatively, shunt is connected to battery side, can monitors the electric current that flows to or flow out battery, thus voltage that can monitoring battery.Give necessary load and inessential load supplying when battery, the voltage that monitors battery is less than while presetting maximum threshold voltage, electricity under LLVD contactor, and the voltage that monitors battery is less than while presetting minimum threshold voltage, electricity under BLVD contactor.
S406, the first end of the first fuse is connected with the negative pole of battery, the second end of the first fuse is connected with the first end of shunt; The first fuse is for the protection of battery.
Alternatively, fuse is fuse, and the first fuse is connected to battery side; in the time that rectification module is powered, if when flowing through the electric current of the first fuse and being greater than certain value, the first fuse will blow; avoid because the excessive battery that causes of electric current that flows to battery damages, thereby can protect battery.
S407, the first end of the second fuse is connected with the second end of necessary load, the second end of the second fuse is connected with the first end of electric contactor under the second end of electric contactor under battery low-voltage and load low-voltage respectively; The second fuse is for the protection of necessary load.
Alternatively, the second fuse is connected to necessary load side, in the time that rectification module is powered; if when flowing through the electric current of the second fuse and being greater than certain value; the second fuse will blow, and avoid that the electric current of necessary load is excessive causes necessary load to damage owing to flowing through, thereby can protect necessary load.
S408, the first end of the 3rd fuse is connected with the second end of inessential load, the second end of the 3rd fuse is connected with the second end of electric contactor under load low-voltage and the second output 2 of rectification module respectively; The 3rd fuse is for the protection of inessential load.
Alternatively; the 3rd fuse is connected to inessential load side; in the time that rectification module is powered; if when flowing through the electric current of the 3rd fuse and being greater than certain value; the 3rd fuse will blow; avoid that the electric current of necessary load is excessive causes inessential load to damage owing to flowing through, thereby can protect inessential load.
As a kind of possible execution mode, the implementation of rectification module can comprise the following steps.
Steps A, the first end of transformer T1 auxiliary winding is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4 respectively, transformer T1 primary winding two ends are used for connecting input voltage.
Step B, the negative pole of rectifier diode D1 is connected with negative pole, the positive pole of filter capacitor C1 and the voltage input end Vin of electric pressure converter VC1 of rectifier diode D2 respectively.
Step C, the positive pole of rectifier diode D2 is connected with the negative pole of rectifier diode D3 and the second end of transformer T1 auxiliary winding respectively, the positive pole of rectifier diode D3 is connected with the second end of electric contactor under the ground end Gnd of the negative pole of the positive pole of rectifier diode D4, filter capacitor C1, electric pressure converter VC1 and load low-voltage respectively.
Step D, the voltage output end Out of electric pressure converter VC1 is connected with the positive pole of battery.
Alternatively, the transformer T1 transformation that the alternating current of input comprises by rectification module and the rectifier bridge being made up of rectifier diode D1, D2, D3, D4 are rectified into and become direct current, then after the filter capacitor C1 filtering being comprised by rectification module and electric pressure converter VC1, are converted to galvanic current to battery, necessary load and inessential load supplying.
As a kind of possible execution mode, under battery low-voltage, electric contactor can be magnetic latching contactor.
Alternatively, magnetic latching contactor does not need to consume electric energy in the time powering on, therefore, and can saves energy.
As a kind of possible execution mode, under load low-voltage, electric contactor can be magnetic latching contactor.
In the described communication power supply circuit manufacture method of Fig. 4, in the time that rectification module is powered, inessential load circuit is: rectification module-inessential load, for the larger inessential load supplying loop of electric current, except the loss of necessary circuit and relevant protection device, without any excess loss, thus can saves energy; In addition, when after electricity under LLVD contactor, battery will disconnect with being connected also of rectification module, avoid rectification module loop to continue the voltage of consuming cells, thereby can saves energy.
The communication power supply circuit and the manufacture method that above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (16)
1. a communication power supply circuit, comprises electric contactor, inessential load, rectification module under electric contactor under battery, battery low-voltage, necessary load, load low-voltage, it is characterized in that, wherein:
The positive pole of described battery connects respectively the first end of described necessary load, the first output 1 of the first end of described inessential load and described rectification module, the negative pole of described battery connects the first end of electric contactor under described battery low-voltage, under described battery low-voltage, the second end of electric contactor connects respectively the first end of electric contactor under the second end of described necessary load and described load low-voltage, under described load low-voltage, the second end of electric contactor connects respectively the second end of described inessential load and the second output 2 of described rectification module, the first input end 3 of described rectification module with the second input 4 for being connected input voltage, described rectification module is used for to described battery, described necessary load and described inessential load supplying, described battery, in the time that described rectification module cannot be powered, is given described necessary load and described inessential load supplying, when electric contactor is preset maximum threshold voltage for being less than when the voltage of described powered battery and described battery under described load low-voltage, disconnect the current supply circuit of described battery to described inessential load supplying, when electric contactor is preset minimum threshold voltage for being less than when the voltage of described powered battery and described battery under described battery low-voltage, disconnect the current supply circuit of described battery to described necessary load and described inessential load supplying.
2. communication power supply circuit as claimed in claim 1, is characterized in that, described communication power supply circuit also comprises shunt, wherein:
The first end of described shunt connects the negative pole of described battery, and the second end of described shunt connects the first end of electric contactor under described battery low-voltage; Described shunt is for monitoring the electric current that flows to or flow out described battery.
3. communication power supply circuit as claimed in claim 2, is characterized in that, described communication power supply circuit also comprises the first fuse, wherein:
The first end of described the first fuse connects the negative pole of described battery, and the second end of described the first fuse connects the first end of described shunt; Described the first fuse is for the protection of described battery.
4. communication power supply circuit as claimed in claim 3, is characterized in that, described communication power supply circuit also comprises the second fuse, wherein:
The first end of described the second fuse connects the second end of described necessary load, and the second end of described the second fuse connects respectively the first end of electric contactor under the second end of electric contactor under described battery low-voltage and described load low-voltage; Described the second fuse is for the protection of described necessary load.
5. communication power supply circuit as claimed in claim 4, is characterized in that, described communication power supply circuit also comprises the 3rd fuse, wherein:
The first end of described the 3rd fuse connects the second end of described inessential load, and the second end of described the 3rd fuse connects respectively the second end of electric contactor under described load low-voltage and the second output 2 of described rectification module; Described the 3rd fuse is for the protection of described inessential load.
6. the communication power supply circuit as described in claim 1-5 any one, is characterized in that, described rectification module comprises:
Transformer T1, rectifier diode D1, D2, D3, D4, filter capacitor C1, electric pressure converter VC1, wherein:
Described transformer T1 primary winding two ends are used for connecting input voltage, the first end of described transformer T1 auxiliary winding connects respectively the positive pole of described rectifier diode D1 and the negative pole of described rectifier diode D4, the negative pole of described rectifier diode D1 connects respectively the negative pole of described rectifier diode D2, the voltage input end Vin of the positive pole of described filter capacitor C1 and described electric pressure converter VC1, the positive pole of described rectifier diode D2 connects respectively the negative pole of described rectifier diode D3 and the second end of described transformer T1 auxiliary winding, the positive pole of described rectifier diode D3 connects respectively the positive pole of described rectifier diode D4, the negative pole of described filter capacitor C1, the second end of electric contactor under the ground end Gnd of described electric pressure converter VC1 and described load low-voltage, the voltage output end Out of described electric pressure converter VC1 connects the positive pole of described battery.
7. communication power supply circuit as claimed in claim 6, is characterized in that, under described battery low-voltage, electric contactor is magnetic latching contactor.
8. communication power supply circuit as claimed in claim 6, is characterized in that, under described load low-voltage, electric contactor is magnetic latching contactor.
9. a communication power supply circuit manufacture method, is characterized in that, described method comprises:
The positive pole of battery is connected with the first end of the first end of necessary load, inessential load and the first output 1 of rectification module respectively;
The negative pole of described battery is connected with the first end of electric contactor under battery low-voltage, the second end of electric contactor under described battery low-voltage is connected with the first end of electric contactor under the second end of described necessary load and load low-voltage respectively;
The second end of electric contactor under described load low-voltage is connected with the second end of described inessential load and the second output 2 of described rectification module respectively, the first input end 3 of described rectification module with the second input 4 for being connected input voltage;
Described rectification module is given described battery, described necessary load and described inessential load supplying; When described battery cannot be powered at described rectification module, give described necessary load and described inessential load supplying; Under described load low-voltage, electric contactor, in the time that the voltage of described powered battery and described battery is less than default maximum threshold voltage, disconnects the current supply circuit of described battery to described inessential load supplying; Under described battery low-voltage, electric contactor, in the time that the voltage of described powered battery and described battery is less than default minimum threshold voltage, disconnects the current supply circuit of described battery to described necessary load and described inessential load supplying.
10. method as claimed in claim 9, is characterized in that, described method also comprises:
The first end of shunt is connected with the negative pole of described battery, the second end of described shunt is connected with the first end of electric contactor under described battery low-voltage; Described shunt is for monitoring the electric current that flows to or flow out described battery.
11. methods as claimed in claim 10, is characterized in that, described method also comprises:
The first end of the first fuse is connected with the negative pole of described battery, the second end of described the first fuse is connected with the first end of described shunt; Described the first fuse is for the protection of described battery.
12. methods as claimed in claim 11, is characterized in that, described method also comprises:
The first end of the second fuse is connected with the second end of described necessary load, the second end of described the second fuse is connected with the first end of electric contactor under the second end of electric contactor under described battery low-voltage and described load low-voltage respectively; Described the second fuse is for the protection of described necessary load.
13. methods as claimed in claim 12, is characterized in that, described method also comprises:
The first end of the 3rd fuse is connected with the second end of described inessential load, the second end of described the 3rd fuse is connected with the second end of electric contactor under described load low-voltage and the second output 2 of described rectification module respectively; Described the 3rd fuse is for the protection of described inessential load.
14. methods as described in claim 9-13 any one, is characterized in that, the implementation of described rectification module comprises:
The first end of transformer T1 auxiliary winding is connected with the positive pole of rectifier diode D1 and the negative pole of rectifier diode D4 respectively, and described transformer T1 primary winding two ends are used for connecting input voltage;
The negative pole of described rectifier diode D1 is connected with negative pole, the positive pole of filter capacitor C1 and the voltage input end Vin of electric pressure converter VC1 of rectifier diode D2 respectively;
The positive pole of described rectifier diode D2 is connected with the negative pole of rectifier diode D3 and the second end of described transformer T1 auxiliary winding respectively;
The positive pole of described rectifier diode D3 is connected with the second end of electric contactor under the ground end Gnd of the negative pole of the positive pole of described rectifier diode D4, described filter capacitor C1, described electric pressure converter VC1 and described load low-voltage respectively;
The voltage output end Out of described electric pressure converter VC1 is connected with the positive pole of described battery.
15. methods as claimed in claim 14, is characterized in that, under described battery low-voltage, electric contactor is magnetic latching contactor.
16. methods as claimed in claim 14, is characterized in that, under described load low-voltage, electric contactor is magnetic latching contactor.
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| CN201410114045.1A CN103904739B (en) | 2014-03-25 | 2014-03-25 | Communication power supply circuit and manufacturing method |
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| CN201410114045.1A CN103904739B (en) | 2014-03-25 | 2014-03-25 | Communication power supply circuit and manufacturing method |
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Cited By (1)
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| CN103904739B (en) | 2017-02-01 |
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