CN218124383U - Power supply device for monitoring equipment of tower crane - Google Patents
Power supply device for monitoring equipment of tower crane Download PDFInfo
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- CN218124383U CN218124383U CN202221581289.7U CN202221581289U CN218124383U CN 218124383 U CN218124383 U CN 218124383U CN 202221581289 U CN202221581289 U CN 202221581289U CN 218124383 U CN218124383 U CN 218124383U
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Abstract
The utility model discloses a power supply device, which comprises a 220V commercial power interface, an AC/DC voltage reduction conversion circuit, a power supply change-over switch, a power supply adjusting circuit, a battery interface module, a plurality of DC/DC conversion units and a plurality of battery power supply units; the output end of the battery power supply unit is connected with a battery interface module, and the output end of the battery interface module is connected with a first input end of a power supply changeover switch; the input end of the AD/DC voltage reduction conversion circuit is connected with a 220V commercial power interface, and the output end of the AD/DC voltage reduction conversion circuit is connected with the second input end of the power supply changeover switch; the output end of the power supply changeover switch is connected with the input end of the power supply regulating circuit, the output end of the power supply regulating unit is respectively connected with each DC/DC conversion unit, and the power supply voltage is output by each DC/DC conversion unit. The utility model discloses can realize the power supply to different supervisory equipment to when the commercial power outage, can switch to reserve storage battery and supply power, simultaneously, carried out the power before the power supply and taked care of, help improving the stability of power supply.
Description
Technical Field
The utility model relates to a power supply unit.
Background
The tower crane is also called tower crane, and belongs to heavy machinery equipment. The method is widely applied to building construction, bridge construction and large-scale engineering construction. In order to ensure the construction safety, the tower crane is often monitored in the working process, generally speaking, the monitoring of the tower crane comprises video monitoring and working state monitoring, video acquisition is generally required through a camera in the video monitoring process, information acquisition is generally required through a sensor for the tower crane when the working state is monitored, and in addition, monitoring equipment for data transmission, storage, display and processing is also required;
and supervisory equipment's power supply unit guarantees supervisory equipment steady operation's important equipment, under the general condition, can supply power to supervisory equipment after carrying out step-down conversion through the commercial power, but the commercial power can have the outage condition sometimes, at this moment, will unable control the behavior of tower crane, and present supervisory equipment power supply still has these a great deal of not enough on power stability simultaneously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a power supply unit, can realize the power supply to different supervisory equipment to when the commercial power outage, can switch to reserve storage battery and supply power, simultaneously, carried out the power before the power supply and taked care of, help improving the stability of power supply.
The purpose of the utility model is realized through the following technical scheme: a power supply device comprises a 220V mains supply interface, an AC/DC voltage reduction conversion circuit, a power supply change-over switch, a power supply regulating circuit, a battery interface module, a plurality of DC/DC conversion units and a plurality of battery power supply units;
the output end of the battery power supply unit is connected with the battery interface module, and the output end of the battery interface module is connected with the first input end of the power supply changeover switch;
the input end of the AC/DC voltage reduction conversion circuit is connected with a 220V commercial power interface, and the output end of the AC/DC voltage reduction conversion circuit is connected with the second input end of the power supply changeover switch;
the output end of the power supply changeover switch is connected with the input end of the power supply regulating circuit, the output end of the power supply regulating unit is respectively connected with each DC/DC conversion unit, and each DC/DC conversion unit outputs power supply voltage.
The power supply regulating circuit comprises a first resistor R1, an inductor L1, a first diode D1, a second diode D2, a first capacitor C1, a second capacitor C2, a temperature compensation triode Q, a temperature compensation diode D3 and a voltage stabilizing diode D4;
the first end of the first resistor R1 is connected to the input end of the power supply regulating circuit, the second end of the first resistor R1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the collector electrode of the temperature compensation triode Q; the cathode of the first diode D1 is connected with the first end of the first resistor R1, and the anode of the first diode D1 is grounded; the cathode of the second diode D2 is connected with the first end of the inductor L1, and the anode of the second diode D2 is grounded; a first end of the first capacitor C1 is connected to a second end of the first resistor R1, and a second end of the first capacitor C1 is grounded; a first end of the second capacitor C2 is connected to a second end of the inductor L1, and a second end of the second capacitor C2 is grounded;
the base electrode of the temperature compensation triode Q is connected with the anode of a temperature compensation diode D3, the cathode of the temperature compensation diode D3 is connected with the cathode of a voltage stabilizing diode D4, and the anode of the voltage stabilizing diode D4 is grounded; the emitter of the temperature compensation triode Q is connected to the output end of the power supply regulating circuit; and the base electrode of the temperature compensation triode Q is also connected to the collector electrode of the temperature compensation triode Q through a second resistor R2.
The beneficial effects of the utility model are that: the utility model discloses can realize the power supply to different supervisory equipment to when the commercial power outage, can switch to reserve storage battery and supply power, simultaneously, carried out the power before the power supply and taked care of, help improving the stability of power supply.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic diagram of the power conditioning circuit of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following descriptions.
As shown in fig. 1, a power supply device includes a 220V commercial power interface, an AC/DC voltage-reducing conversion circuit, a power switch, a power conditioning circuit, a battery interface module, a plurality of DC/DC conversion units, and a plurality of battery power supply units;
the output end of the battery power supply unit is connected with the battery interface module, and the output end of the battery interface module is connected with the first input end of the power supply changeover switch;
the input end of the AC/DC voltage reduction conversion circuit is connected with a 220V commercial power interface, and the output end of the AC/DC voltage reduction conversion circuit is connected with the second input end of the power supply changeover switch;
the output end of the power supply changeover switch is connected with the input end of the power supply regulating circuit, the output end of the power supply regulating unit is respectively connected with each DC/DC conversion unit, and the power supply voltage is output by each DC/DC conversion unit.
In the embodiment of the present application, each of the DC/DC conversion units is a DC/DC conversion unit with different output voltages, and different voltages may be required by different monitoring devices.
As shown in fig. 2, the power supply regulating circuit includes a first resistor R1, an inductor L1, a first diode D1, a second diode D2, a first capacitor C1, a second capacitor C2, a temperature compensating triode Q, a temperature compensating diode D3, and a zener diode D4;
the first end of the first resistor R1 is connected to the input end of the power supply regulating circuit, the second end of the first resistor R1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the collector electrode of the temperature compensation triode Q; the cathode of the first diode D1 is connected with the first end of the first resistor R1, and the anode of the first diode D1 is grounded; the cathode of the second diode D2 is connected with the first end of the inductor L1, and the anode of the second diode D2 is grounded; a first end of the first capacitor C1 is connected to a second end of the first resistor R1, and a second end of the first capacitor C1 is grounded; a first end of the second capacitor C2 is connected to a second end of the inductor L1, and a second end of the second capacitor C2 is grounded;
the base electrode of the temperature compensation triode Q is connected with the anode of a temperature compensation diode D3, the cathode of the temperature compensation diode D3 is connected with the cathode of a voltage stabilizing diode D4, and the anode of the voltage stabilizing diode D4 is grounded; the emitter of the temperature compensation triode Q is connected to the output end of the power supply regulating circuit; the base electrode of the temperature compensation triode Q is also connected to the collector electrode of the temperature compensation triode Q through a second resistor R2.
The power supply regulating circuit has two functions, the first function is power supply filtering, and low-frequency noise and high-frequency noise of the power supply can be effectively filtered based on the first-order RC filter circuit (R1, C1) and the LC filter circuit (L1, C2) in the process of power supply filtering, so that the reliability of the power supply is improved; the second function is to guarantee voltage stability based on temperature compensation: the BE junction of the triode Q and the PN junction of the diode D3 have larger junction voltages along with the temperature drop; when the temperature is reduced, the forward conducting voltage of the diode D3 is increased, so that the reference voltage of the base electrode of the triode Q is increased, but when the temperature is reduced, the BE junction voltage of the triode Q is also increased, and finally the output voltage is kept unchanged; on the contrary, when the temperature rises, the forward conducting voltage of the diode D3 is reduced, so that the reference voltage of the base electrode of the triode Q is reduced, but under the condition of temperature rise, the BE junction voltage of the triode Q is also reduced, and finally the output voltage is kept unchanged, namely, the junction voltage directions of the diode D3 and the triode Q are opposite, so that the temperature compensation effect is achieved, and the stability of the voltage is ensured; through the adjusting function of the power supply adjusting circuit, the finally output power supply voltage has higher stability, and each monitoring device can be supported to stably work.
In an embodiment of the present application, the power supply switch is a button type or a knob type switch. The power supply change-over switch is a button type or knob type change-over switch.
And simultaneously, the utility model discloses consider the circumstances of outage, adopt the battery power supply unit as stand-by power supply, the battery power supply unit includes storage battery and power switch, storage battery's output and power switch are connected, the output and the battery interface module of power switch are connected. When the mains supply is powered off, the power supply can be switched through the power supply switch, and the battery power supply unit supplies power; in consideration of the need to improve the cruising ability of the battery power supply unit as much as possible, a plurality of battery power supply units are involved to carry out power supply cooperatively, and a battery interface module is designed: the battery interface module comprises a plurality of input interfaces and an output interface, and the input interfaces and the battery power supply units are the same in number and are in one-to-one correspondence; the output end of the battery power supply unit is connected with the corresponding input interface in the battery interface module, each input interface is connected with the output interface, and the output interface is used as the output end of the battery interface module and is connected with the first input end of the power supply change-over switch. Because each battery is connected to the corresponding input port through the switch, and the input port is connected with the output port, in fact, under the condition that the switch is closed, each storage battery pack is connected together, and in order to avoid the damage of the battery caused by the reverse filling of any storage battery pack to other storage battery packs, an anti-reverse diode is arranged between the storage battery pack and the power supply switch, and the reverse filling or the reverse flow between the storage battery packs is avoided. In the application, the number of the storage battery packs required by gating of the power supply switch can be supplied according to the requirement, and the power supply is flexible and convenient.
Finally, it is to be understood that the above description illustrates and describes the preferred embodiment of the invention, but as before, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A power supply device, characterized by: the device comprises a 220V mains supply interface, an AC/DC voltage reduction conversion circuit, a power supply change-over switch, a power supply adjusting circuit, a battery interface module, a plurality of DC/DC conversion units and a plurality of battery power supply units;
the output end of the battery power supply unit is connected with the battery interface module, and the output end of the battery interface module is connected with the first input end of the power supply changeover switch;
the input end of the AC/DC voltage reduction conversion circuit is connected with a 220V mains supply interface, and the output end of the AC/DC voltage reduction conversion circuit is connected with the second input end of the power supply changeover switch;
the output end of the power supply changeover switch is connected with the input end of the power supply regulating circuit, the output end of the power supply regulating unit is respectively connected with each DC/DC conversion unit, and each DC/DC conversion unit outputs power supply voltage.
2. A power supply device according to claim 1, characterized in that: each of the DC/DC conversion units is a DC/DC conversion unit having a different output voltage.
3. A power supply device according to claim 1, characterized in that: the power supply regulating circuit comprises a first resistor R1, an inductor L1, a first diode D1, a second diode D2, a first capacitor C1, a second capacitor C2, a temperature compensation triode Q, a temperature compensation diode D3 and a voltage stabilizing diode D4;
the first end of the first resistor R1 is connected to the input end of the power supply regulating circuit, the second end of the first resistor R1 is connected to the first end of the inductor L1, and the second end of the inductor L1 is connected to the collector electrode of the temperature compensation triode Q; the cathode of the first diode D1 is connected with the first end of the first resistor R1, and the anode of the first diode D1 is grounded; the cathode of the second diode D2 is connected with the first end of the inductor L1, and the anode of the second diode D2 is grounded; a first end of the first capacitor C1 is connected to a second end of the first resistor R1, and a second end of the first capacitor C1 is grounded; a first end of the second capacitor C2 is connected to a second end of the inductor L1, and a second end of the second capacitor C2 is grounded;
the base electrode of the temperature compensation triode Q is connected with the anode of a temperature compensation diode D3, the cathode of the temperature compensation diode D3 is connected with the cathode of a voltage stabilizing diode D4, and the anode of the voltage stabilizing diode D4 is grounded; the emitter of the temperature compensation triode Q is connected to the output end of the power supply regulating circuit; the base electrode of the temperature compensation triode Q is also connected to the collector electrode of the temperature compensation triode Q through a second resistor R2.
4. A power supply device according to claim 1, characterized in that: the battery interface module comprises a plurality of input interfaces and an output interface, and the input interfaces are the same in number as the battery power supply units and are in one-to-one correspondence with the battery power supply units; the output end of the battery power supply unit is connected with the corresponding input interface in the battery interface module, each input interface is connected with the output interface, and the output interface is used as the output end of the battery interface module and is connected with the first input end of the power supply change-over switch.
5. A power supply device according to claim 1, characterized in that: the battery power supply unit comprises a storage battery pack and a power supply switch, the output end of the storage battery pack is connected with the power supply switch, and the output end of the power supply switch is connected with the battery interface module.
6. A power supply device according to claim 5, characterized in that: and an anti-reverse diode is arranged between the storage battery pack and the power supply switch.
7. A power supply device according to claim 5, characterized in that: the power supply switch is a button type or knob type switch.
8. A power supply device according to claim 1, characterized in that: the power supply change-over switch is a button type or knob type change-over switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221581289.7U CN218124383U (en) | 2022-06-23 | 2022-06-23 | Power supply device for monitoring equipment of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221581289.7U CN218124383U (en) | 2022-06-23 | 2022-06-23 | Power supply device for monitoring equipment of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218124383U true CN218124383U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221581289.7U Active CN218124383U (en) | 2022-06-23 | 2022-06-23 | Power supply device for monitoring equipment of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218124383U (en) |
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2022
- 2022-06-23 CN CN202221581289.7U patent/CN218124383U/en active Active
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