CN210245415U - Wireless power relay - Google Patents
Wireless power relay Download PDFInfo
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- CN210245415U CN210245415U CN201920917857.8U CN201920917857U CN210245415U CN 210245415 U CN210245415 U CN 210245415U CN 201920917857 U CN201920917857 U CN 201920917857U CN 210245415 U CN210245415 U CN 210245415U
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- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a wireless power relay, which comprises a shell, a power input terminal, a relay output terminal, an indicator light, a power module, a singlechip, a power relay module and a radio frequency power amplifying circuit, wherein the power module, the singlechip, the power relay module and the radio frequency power amplifying circuit are arranged inside the shell, and the power module, the power relay module and the radio frequency power amplifying circuit are all connected with the singlechip; the power module comprises a direct current power supply, a first resistor, a first capacitor and a first diode, the direct current power supply is connected with one end of the first resistor, the other end of the first resistor is connected with the anode of the first capacitor and the anode of the first diode respectively, the cathode of the first diode is connected with the anode of a coil of the power relay module, and the cathode of the coil of the power relay module is grounded. Implement the utility model discloses a wireless power relay has following beneficial effect: the used components are fewer, the circuit wiring is simple, the maintenance is convenient, and the hardware cost can be reduced.
Description
Technical Field
The utility model relates to a power relay field, in particular to wireless power relay.
Background
A power relay is a device that generates a transition in one or more electrical output circuits when an input (or actuation) meets certain specified conditions. The neutral point direct grounding system can be used for a neutral point direct grounding system and is used as a directional element for zero sequence current protection. The power relay plays the roles of automatic regulation, safety protection, circuit conversion and the like in the circuit. Most of the traditional power relay control adopts a wired control mode, however, in the situation that certain personnel cannot enter the power relay conveniently or the power relay is distributed in a plurality of places remotely, the wired control mode is not suitable, and the problem is solved due to the occurrence of the wireless power relay. However, the power supply part of the conventional wireless power relay uses fewer components, the circuit wiring is complex, the maintenance is inconvenient, and the hardware cost is increased invisibly due to more components.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a components and parts that use less, circuit wiring is simple, convenient maintenance, can reduce the wireless power relay of hardware cost.
The utility model provides a technical scheme that its technical problem adopted is: a wireless power relay is constructed and comprises a shell, a power input terminal, a relay output terminal, an indicator light, a power module, a single chip microcomputer, a power relay module and a radio frequency power amplification circuit, wherein the power input terminal is arranged on one side of the shell, the relay output terminal is arranged on the other side of the shell, the indicator light is arranged outside the shell, the power input terminal is connected with an alternating current power supply, the relay output terminal is connected with a load, the relay output terminal comprises a common end pin, a normally open end pin and a normally closed end pin, the power module, the single chip microcomputer, the power relay module and the radio frequency power amplification circuit are arranged inside the shell, and the power module, the power relay module and the radio frequency power amplification circuit are all connected with the single chip microcomputer;
the power supply module comprises a direct current power supply, a first resistor, a first capacitor and a first diode, wherein the direct current power supply is connected with one end of the first resistor, the other end of the first resistor is respectively connected with the anode of the first capacitor and the anode of the first diode, the cathode of the first diode is connected with the anode of the coil of the power relay module, and the cathode of the coil of the power relay module is grounded.
In the wireless power relay of the present invention, the first diode has a model of S-152T.
In the wireless power relay, the power module further includes a second resistor, one end of the second resistor is connected to the negative electrode of the coil of the power relay module, and the other end of the second resistor is grounded.
In the wireless power relay of the present invention, the resistance of the second resistor is 38k Ω.
In the wireless power relay of the present invention, the node connected to the anode of the first diode and the anode of the first capacitor is a relay driving power supply.
In the wireless power relay of the present invention, the capacitance of the first capacitor is 320 pF.
Implement the utility model discloses a wireless power relay has following beneficial effect: because be equipped with shell, power input terminal, relay output terminal, pilot lamp, power module, singlechip, power relay module and radio frequency power amplifier circuit, power module includes DC power supply, first resistance, first electric capacity and first diode, and the components and parts that this power module used are less, the circuit wiring is simple, convenient maintenance, can reduce the hardware cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the wireless power relay of the present invention;
fig. 2 is a schematic circuit diagram of the power supply module in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the embodiment of the wireless power relay of the present invention, the schematic structural diagram of the wireless power relay is shown in fig. 1. In fig. 1, the wireless power relay includes a housing 1, a power input terminal 2, a relay output terminal, an indicator lamp 4, a power module 5, a single chip microcomputer 6, a power relay module 7 and a radio frequency power amplifying circuit 8, wherein the power input terminal 2 is disposed on one side of the housing 1, the relay output terminal is disposed on the other side of the housing 1, the indicator lamp 4 is disposed outside the housing 1, and the indicator lamp 4 is used for indicating the on or off state of the wireless power relay.
The power input terminal 2 is connected with an alternating current power supply, the relay output terminal is connected with a load, the relay output terminal comprises a common end pin 31, a normally-open end pin 32 and a normally-closed end pin 33, the common end pin 31 is connected with the load power supply, and the normally-open end pin 32 or the normally-closed end pin 33 is connected with the positive pole of the load.
The power module 5, the single chip microcomputer 6, the power relay module 7 and the radio frequency power amplifying circuit 8 are arranged inside the shell 1, and the power module 5, the power relay module 7 and the radio frequency power amplifying circuit 8 are all connected with the single chip microcomputer 6. The rf power amplifying circuit 8 is used to enhance the transmission distance and penetration capability of the wireless signal, and the rf power amplifying circuit 8 adopts a structure in the prior art, and its working principle also adopts a working principle in the prior art, which is not described in detail herein. The type of the singlechip 6 is CC1110F16, and the working frequency band is 433 MHz.
Fig. 2 is a schematic circuit diagram of the power module in this embodiment, in fig. 2, the power module 5 includes a dc power VCC, a first resistor R1, a first capacitor C1, and a first diode D1, the dc power VCC is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to the anode of the first capacitor C1 and the anode of the first diode D1, the cathode of the first diode D1 is connected to the anode of the coil J of the power relay module 7, and the cathode of the coil J of the power relay module 7 is grounded. The node at which the anode of the first capacitor C1 is connected with the anode of the first diode D1 is the relay driving power supply ST, and the power supply module 5 uses fewer components, is simple in circuit wiring, is convenient to maintain and can reduce hardware cost.
When the coil J of the power relay module 7 is switched on, the current on the coil J of the power relay module 7 rises rapidly, at this time, the voltage on the first capacitor C1 drops rapidly, the voltage value of the dc power source VCC also drops, and due to the blocking effect of the first resistor R1, the voltage value of the dc power source VCC drops slowly and does not fluctuate violently, so that the load is ensured to work normally and stably, until the tripping and closing actions of the wireless power relay are completed, the coil J of the power relay module 7 is switched off, and the voltage value of the dc power source VCC and the voltage driving the first capacitor C1 rise rapidly to a stable value. A first capacitor C1 in the circuit provides energy storage for tripping and closing of the wireless power relay, and when the wireless power relay trips and closes, a first resistor R1 blocks the influence of a relay driving power supply ST on a direct-current power supply VCC, so that normal tripping and closing of the wireless power relay are realized, the direct-current power supply VCC is protected, and the circuit is very simple and low in cost.
In this embodiment, the first diode D1 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch in which the first diode D1 is located is large, the current of the branch in which the first diode D1 is located can be reduced by the first diode D1, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burnt out due to the large current, so that the safety and reliability of the circuit are high.
It should be noted that in the present embodiment, the first diode D1 has a model number S-152T. Of course, in practical applications, the first diode D1 may also be another type of diode with similar functions.
In this embodiment, the capacitance of the first capacitor C1 is 320 pF. Of course, in practical applications, the capacitance value of the first capacitor C1 may be adjusted accordingly, that is, the capacitance value of the first capacitor C1 may be increased or decreased accordingly.
In this embodiment, the power module 5 further includes a second resistor R2, one end of the second resistor R2 is connected to the negative electrode of the coil J of the power relay module 7, and the other end of the second resistor R2 is grounded. The second resistor R2 is a current limiting resistor for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the second resistor R2 is located is large, the current of the branch where the second resistor R2 is located can be reduced by the second resistor R2, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burned out due to the large current, so that the safety and reliability of the circuit are further enhanced.
It should be noted that, in the present embodiment, the resistance of the second resistor R2 is 38k Ω. Of course, in practical applications, the resistance of the second resistor R2 may be adjusted according to specific situations, that is, the resistance of the second resistor R2 may be increased or decreased according to specific situations.
In short, in this embodiment, the power module 5 uses fewer components, is simple in circuit wiring, is convenient to maintain, and can reduce hardware cost.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A wireless power relay is characterized by comprising a shell, a power input terminal, a relay output terminal, an indicator lamp, a power module, a single chip microcomputer, a power relay module and a radio frequency power amplification circuit, wherein the power input terminal is arranged on one side of the shell, the relay output terminal is arranged on the other side of the shell, the indicator lamp is arranged outside the shell, the power input terminal is connected with an alternating current power supply, the relay output terminal is connected with a load, the relay output terminal comprises a common end pin, a normally open end pin and a normally closed end pin, the power module, the single chip microcomputer, the power relay module and the radio frequency power amplification circuit are arranged inside the shell, and the power module, the power relay module and the radio frequency power amplification circuit are all connected with the single chip microcomputer;
the power supply module comprises a direct current power supply, a first resistor, a first capacitor and a first diode, wherein the direct current power supply is connected with one end of the first resistor, the other end of the first resistor is respectively connected with the anode of the first capacitor and the anode of the first diode, the cathode of the first diode is connected with the anode of the coil of the power relay module, and the cathode of the coil of the power relay module is grounded.
2. The wireless power relay according to claim 1, wherein the first diode is of type S-152T.
3. The wireless power relay according to claim 2, wherein the power supply module further comprises a second resistor, one end of the second resistor is connected to a negative electrode of the coil of the power relay module, and the other end of the second resistor is grounded.
4. The wireless power relay according to claim 3, wherein the resistance value of the second resistor is 38k Ω.
5. The wireless power relay according to any one of claims 1 to 4, wherein a node at which the anode of the first capacitor is connected to the anode of the first diode is a relay driving power source.
6. The wireless power relay according to any of claims 1-4, wherein the first capacitor has a capacitance value of 320 pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917857.8U CN210245415U (en) | 2019-06-18 | 2019-06-18 | Wireless power relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917857.8U CN210245415U (en) | 2019-06-18 | 2019-06-18 | Wireless power relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245415U true CN210245415U (en) | 2020-04-03 |
Family
ID=69986298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920917857.8U Expired - Fee Related CN210245415U (en) | 2019-06-18 | 2019-06-18 | Wireless power relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245415U (en) |
-
2019
- 2019-06-18 CN CN201920917857.8U patent/CN210245415U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 |