CN210016476U - Portable wireless router - Google Patents
Portable wireless router Download PDFInfo
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- CN210016476U CN210016476U CN201920827036.5U CN201920827036U CN210016476U CN 210016476 U CN210016476 U CN 210016476U CN 201920827036 U CN201920827036 U CN 201920827036U CN 210016476 U CN210016476 U CN 210016476U
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Abstract
The utility model discloses a portable wireless router, which comprises a solar charging module, a power supply module, a battery module, a charging interface, a wireless communication module, a net port and an antenna, wherein the solar charging module is connected with the power supply module; the power module comprises a first transformer, a rectifier bridge, a first resistor, a second capacitor, a first triode, a fifth resistor, a first diode, a third resistor, a third capacitor, a fourth resistor, a second transformer, a second diode, a fourth capacitor and a voltage output end, one end of a primary coil of the first transformer is connected with one end of 220V alternating current, and the other end of the primary coil of the first transformer is connected with the other end of the 220V alternating current. The utility model discloses circuit structure is comparatively simple, the cost is lower, the security and the reliability of convenient maintenance, circuit are higher.
Description
Technical Field
The utility model relates to a router field, in particular to portable wireless router.
Background
A portable wireless router, also called mini wireless router, is a mini portable product combining 3G technology and WiFi technology, has the advantages of small volume, easy carrying and the like, is a WiFi signal transmitter provided by wireless operators, can receive signals sent by the portable router if devices such as computers have wireless network cards, and can use 3G network outdoors by utilizing the same. The power supply part of the traditional portable wireless router uses more components, the circuit structure is complex, the hardware cost is high, and the maintenance is inconvenient. In addition, since the power supply portion of the conventional portable wireless router lacks a corresponding circuit protection function, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.
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, a circuit structure is comparatively simple, the cost is lower, the security and the higher portable wireless router of reliability of convenient maintenance, circuit are provided.
The utility model provides a technical scheme that its technical problem adopted is: the portable wireless router comprises a solar charging module, a power supply module, a battery module, a charging interface, a wireless communication module, a network interface and an antenna, wherein the solar charging module is connected with the power supply module, the power supply module is respectively connected with the battery module and the wireless communication module, the charging interface is connected with the battery module, and the network interface and the antenna are both connected with the wireless communication module;
the power module comprises a first transformer, a rectifier bridge, a first resistor, a second capacitor, a first triode, a fifth resistor, a first diode, a third resistor, a third capacitor, a fourth resistor, a second transformer, a second diode, a fourth capacitor and a voltage output end, one end of a primary coil of the first transformer is connected with one end of 220V alternating current, the other end of the primary coil of the first transformer is connected with the other end of the 220V alternating current, one end of a secondary coil of the first transformer is connected with one input end of the rectifier bridge, the other end of the secondary coil of the first transformer is connected with the other input end of the rectifier bridge, one output end of the rectifier bridge is respectively connected with one end of the first resistor, one end of the second capacitor and one end of the first primary coil of the second transformer, the other end of the first resistor is respectively connected with the base electrode of the first triode, the cathode of the first diode and one end of a third resistor, the collector electrode of the first triode is connected with one end of a fifth resistor, the other end of the second resistor is respectively connected with the other end of the second capacitor, the other end of a first primary coil of a second transformer and the other end of the fifth resistor, the other end of the third resistor is respectively connected with one end of a third capacitor and one end of a fourth resistor, the anode of the first diode is respectively connected with one end of a second primary coil of the second transformer, one end of the third capacitor and the other end of the fourth resistor, the other output end of the rectifier bridge is respectively connected with the emitter electrode of the first triode and the other end of the second primary coil of the second transformer, one end of a secondary coil of the second transformer is connected with the anode of the second diode, the cathode of the second diode is connected with one end of the fourth capacitor and one end of the voltage output end respectively, the other end of the second secondary coil of the second transformer is connected with the other end of the fourth capacitor and the other end of the voltage output end respectively, and the resistance value of the fifth resistor is 35k omega.
In the portable wireless router of the present invention, the power module further includes a third diode, an anode of the third diode is connected to the emitter of the first triode, a cathode of the third diode is connected to another output terminal of the rectifier bridge, and a model of the third diode is E-822.
In the portable wireless router of the present invention, the power module further includes a fourth diode, an anode of the fourth diode is connected to another output terminal of the rectifier bridge, a cathode of the fourth diode is connected to an emitter of the first triode, and a model of the fourth diode is S-352T.
In the portable wireless router, the power module further includes a sixth resistor, one end of the sixth resistor is connected to one end of the second capacitor, the other end of the sixth resistor is connected to one end of the first primary coil of the second transformer, and the resistance of the sixth resistor is 45k Ω.
In the portable wireless router of the present invention, the first transistor is an NPN transistor.
In the portable wireless router of the present invention, the wireless communication module is a bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module.
Implement the utility model discloses a portable wireless router has following beneficial effect: the power module is compared with the power supply part of the traditional portable wireless router, and has fewer used components, and hardware cost can be reduced due to the fact that some components are saved, in addition, the fifth resistor is used for current limiting protection, so that the circuit structure is simple, the cost is low, the maintenance is convenient, and the safety and reliability of the circuit are high.
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 portable wireless router 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 portable wireless router of the present invention, a schematic structural diagram of the portable wireless router is shown in fig. 1. In fig. 1, the portable wireless router includes a solar charging module 1, a power module 2, a battery module 3, a charging interface 4, a wireless communication module 5, a network interface 6 and an antenna 7, wherein the solar charging module 1 is connected to the power module 2, the power module 2 is respectively connected to the battery module 3 and the wireless communication module 5, the charging interface 4 is connected to the battery module 3, and the network interface 6 and the antenna 7 are both connected to the wireless communication module 5.
The charging interface 4 is externally connected with a charger to charge the battery module 3. The wireless communication module 5 receives a wireless wifi data signal communicated with the wireless communication module 5 through the antenna 7. The utility model discloses mainly rely on battery module 3 to provide the power to wireless communication module 5, also can be through charging interface 4 to other equipment power supplies simultaneously. The power supply module 2 can be switched under the illumination condition to charge the solar charging module 1 and simultaneously supply the wireless communication module 5 to work; in case of poor lighting conditions, the charging can be performed through the charging interface 4; the charging and power supply functions can be used simultaneously, so that one machine has multiple purposes, and the portability and the mobility are realized.
In this embodiment, the wireless communication module 5 is a bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module. Through setting up multiple wireless communication mode, not only can increase wireless communication mode's flexibility, can also satisfy the demand of different users and different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires highly to communication quality.
Fig. 2 is a schematic circuit diagram of a power module in this embodiment, and in fig. 2, the power module 2 includes a first transformer T1, a rectifier bridge Z, a first resistor R1, a second resistor R2, a second capacitor C2, a first transistor Q1, a fifth resistor R5, a first diode D1, a third resistor R3, a third capacitor C3, a fourth resistor R4, a second transformer T2, a second diode D2, a fourth capacitor C4, and a voltage output Vo, wherein one end of a primary coil of the first transformer T1 is connected to one end of the 220V alternating current, the other end of a primary coil of the first transformer T1 is connected to the other end of the 220V alternating current, one end of a secondary coil of the first transformer T1 is connected to one input end of the rectifier bridge Z, the other end of a secondary coil of the first transformer T1 is connected to the other input end of the rectifier bridge Z, and one output end of the rectifier bridge Z is connected to one end of the first resistor R1, One end of a second resistor R2, one end of a second capacitor C2 and one end of a first primary coil of a second transformer T2 are connected, the other end of the first resistor R1 is connected to a base of the first transistor Q1, a cathode of the first diode D1 and one end of a third resistor R3, respectively, a collector of the first transistor Q1 is connected to one end of a fifth resistor R5, the other end of the second resistor R2 is connected to the other end of a second capacitor C2, the other end of the first primary coil of the second transformer T2 and the other end of a fifth resistor R5, the other end of the third resistor R3 is connected to one end of a third capacitor C3 and one end of a fourth resistor R4, respectively, an anode of the first diode D1 is connected to one end of the second primary coil of the second transformer T2, one end of the third capacitor C3 and the other end of the fourth resistor R4, respectively, and the other output end of the emitter Z of the rectifier bridge Z is connected to the first transistor T1 of the first transformer T2, one end of the secondary winding of the second transformer T2 is connected to the anode of the second diode D2, the cathode of the second diode D2 is connected to one end of the fourth capacitor C4 and one end of the voltage output terminal Vo, respectively, and the other end of the second secondary winding of the second transformer T2 is connected to the other end of the fourth capacitor C4 and the other end of the voltage output terminal Vo, respectively.
This power module 2 compares with the power supply part of traditional portable wireless router, and its components and parts that use are less, and circuit structure is comparatively simple, and convenient the maintenance owing to saved some components and parts, can reduce the hardware cost like this, and in addition, fifth resistance R5 is current-limiting resistance for carry out current-limiting protection, therefore the security and the reliability of circuit are higher. It should be noted that in the present embodiment, the resistance of the fifth resistor R5 is 35k Ω, and certainly, in practical applications, the resistance of the fifth resistor R5 may be adjusted according to specific situations, that is, the resistance of the fifth resistor R5 may be increased or decreased according to specific situations.
The working principle of the power module 2 is as follows: the 220V alternating current commercial power is subjected to voltage reduction through a first transformer T1 and is rectified by a rectifier bridge Z and then is added to a first primary coil 1 → 2 of a second transformer T2 → the other path of a collector of a first triode Q1 passes through a first resistor R1 → a base of a first triode Q1, so that the first triode Q1 is positively biased and conducted, meanwhile, the polarity of induced voltage generated on the second primary coil is 3 positive and 4 negative, the voltage passes through a third capacitor C3 → a third resistor R3 → the base of the first triode Q1, and under the combined action of the voltage, the first triode Q1 is rapidly saturated.
At this moment, the magnetic flux Ψ in the second transformer T2 reaches the maximum, the flux increment △ Ψ becomes zero, which is the process of "generating electricity" and "magnetism", and after that, the magnetic field disappears rapidly, the magnetic flux variation △ Ψ becomes maximum, and the induced voltage generated in each winding is reversed in polarity, which is the process of "generating electricity" and "magnetism", and in this process, the induced voltage generated in each coil of the second transformer T2 has the induced voltage polarity of 1 minus 2 plus, 3 minus 4 plus, 5 minus 6 plus, 1 minus 2 plus, and the induced voltage is easy to break down the first triode Q1, and in order to prevent the first triode Q1 from breaking down, a second capacitor C2 and a second resistor R2 clipping suppression circuit are added in the circuit.
The 3 negative 4 positive feedback voltage causes the rapid reverse bias of the first transistor Q1 to turn off. In the loop of 3 → third capacitor C3// fourth resistor R4 → third resistor R3 → emitter junction of first transistor Q1 → 4 → 3, polarity of the induced voltage generated in the 3-4 coils of second transformer T2 changes repeatedly in forward, reverse, forward and reverse directions … …, and the first transistor Q1 operates repeatedly in a switching state of saturation, cut-off, saturation and cut-off … …. 5 negative and 6 positive induced voltage is rectified by a second diode D2 and filtered by a fourth capacitor C4 to output voltage.
In this embodiment, the first transistor Q1 is an NPN transistor. Of course, in practical applications, the first transistor Q1 may also be a PNP transistor, but the structure of the circuit is changed accordingly.
In this embodiment, the power module 2 further includes a third diode D3, an anode of the third diode D3 is connected to the emitter of the first transistor Q1, and a cathode of the third diode D3 is connected to the other output terminal of the rectifier bridge Z. The third diode D3 is a current limiting diode for current limiting protection to further enhance the safety and reliability of the circuit. It should be noted that in the present embodiment, the third diode D3 has a model E-822, and in practical applications, other types of diodes having similar functions may also be used as the third diode D3.
In this embodiment, the power module 2 further includes a fourth diode D4, an anode of the fourth diode D4 is connected to the other output terminal of the rectifier bridge Z, and a cathode of the fourth diode D4 is connected to an emitter of the first transistor Q1. The fourth diode D4 is a current limiting diode for current limiting protection to further enhance the safety and reliability of the circuit. It should be noted that in the present embodiment, the model of the fourth diode D4 is S-352T, and certainly, in practical applications, other models of diodes with similar functions may be adopted as the fourth diode D4.
In this embodiment, the power module 2 further includes a sixth resistor R6, one end of the sixth resistor R6 is connected to one end of the second capacitor C2, and the other end of the sixth resistor R6 is connected to one end of the first primary winding of the second transformer T2. The sixth resistor R6 is a current limiting resistor for performing current limiting protection to further enhance the current limiting effect. It should be noted that in the embodiment, the resistance value of the sixth resistor R6 is 45k Ω, and certainly, in practical applications, the resistance value of the sixth resistor R6 may be adjusted according to specific situations, that is, the resistance value of the sixth resistor R6 may be increased or decreased according to specific situations.
In a word, in this embodiment, this power module 2 compares with the power supply part of traditional portable wireless router, and its components and parts that use are less, and circuit structure is comparatively simple, and convenient maintenance can reduce the hardware cost like this owing to saved some components and parts, in addition, is equipped with current-limiting resistor in this power module 2, and consequently the security and the reliability of circuit are higher.
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 portable wireless router is characterized by comprising a solar charging module, a power supply module, a battery module, a charging interface, a wireless communication module, a network interface and an antenna, wherein the solar charging module is connected with the power supply module;
the power module comprises a first transformer, a rectifier bridge, a first resistor, a second capacitor, a first triode, a fifth resistor, a first diode, a third resistor, a third capacitor, a fourth resistor, a second transformer, a second diode, a fourth capacitor and a voltage output end, one end of a primary coil of the first transformer is connected with one end of 220V alternating current, the other end of the primary coil of the first transformer is connected with the other end of the 220V alternating current, one end of a secondary coil of the first transformer is connected with one input end of the rectifier bridge, the other end of the secondary coil of the first transformer is connected with the other input end of the rectifier bridge, one output end of the rectifier bridge is respectively connected with one end of the first resistor, one end of the second capacitor and one end of the first primary coil of the second transformer, the other end of the first resistor is respectively connected with the base electrode of the first triode, the cathode of the first diode and one end of a third resistor, the collector electrode of the first triode is connected with one end of a fifth resistor, the other end of the second resistor is respectively connected with the other end of the second capacitor, the other end of a first primary coil of a second transformer and the other end of the fifth resistor, the other end of the third resistor is respectively connected with one end of a third capacitor and one end of a fourth resistor, the anode of the first diode is respectively connected with one end of a second primary coil of the second transformer, one end of the third capacitor and the other end of the fourth resistor, the other output end of the rectifier bridge is respectively connected with the emitter electrode of the first triode and the other end of the second primary coil of the second transformer, one end of a secondary coil of the second transformer is connected with the anode of the second diode, the cathode of the second diode is connected with one end of the fourth capacitor and one end of the voltage output end respectively, the other end of the second secondary coil of the second transformer is connected with the other end of the fourth capacitor and the other end of the voltage output end respectively, and the resistance value of the fifth resistor is 35k omega.
2. The portable wireless router of claim 1, wherein the power module further comprises a third diode, an anode of the third diode is connected to the emitter of the first transistor, a cathode of the third diode is connected to another output terminal of the rectifier bridge, and the third diode is of type E-822.
3. The portable wireless router of claim 2, wherein the power module further comprises a fourth diode, an anode of the fourth diode is connected to the other output terminal of the rectifier bridge, a cathode of the fourth diode is connected to the emitter of the first triode, and the fourth diode has a model number of S-352T.
4. The portable wireless router according to claim 3, wherein the power supply module further comprises a sixth resistor, one end of the sixth resistor is connected to one end of the second capacitor, the other end of the sixth resistor is connected to one end of the first primary coil of the second transformer, and the resistance value of the sixth resistor is 45k Ω.
5. The portable wireless router of any of claims 1-4, wherein the first transistor is an NPN transistor.
6. The portable wireless router of any one of claims 1 to 4, wherein the wireless communication module is a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827036.5U CN210016476U (en) | 2019-05-31 | 2019-05-31 | Portable wireless router |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920827036.5U CN210016476U (en) | 2019-05-31 | 2019-05-31 | Portable wireless router |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210016476U true CN210016476U (en) | 2020-02-04 |
Family
ID=69318570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920827036.5U Expired - Fee Related CN210016476U (en) | 2019-05-31 | 2019-05-31 | Portable wireless router |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210016476U (en) |
-
2019
- 2019-05-31 CN CN201920827036.5U patent/CN210016476U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200204 |