CN220753005U - Novel LCD bus stop board - Google Patents
Novel LCD bus stop board Download PDFInfo
- Publication number
- CN220753005U CN220753005U CN202322414433.9U CN202322414433U CN220753005U CN 220753005 U CN220753005 U CN 220753005U CN 202322414433 U CN202322414433 U CN 202322414433U CN 220753005 U CN220753005 U CN 220753005U
- Authority
- CN
- China
- Prior art keywords
- bus stop
- power input
- input end
- power
- stop board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000013459 approach Methods 0.000 abstract description 12
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The novel LCD bus stop board comprises an LCD bus stop board body, a power module, a solar panel, a power inverter, a radiator fan, a storage battery, a control circuit, a stop reporting circuit and a temperature control circuit; the solar cell panel is installed on the bus stop, the frame of the LCD bus stop board body is provided with an opening, the cooling fan is installed in the opening, and the power module, the power inverter, the storage battery, the control circuit, the stop reporting circuit and the temperature control circuit are installed in the shell of the LCD bus stop board body and are electrically connected. The novel solar energy bus stop board body is powered by the solar cell panel, the storage battery and the power supply circuit in a cooperative way, so that the purpose of saving electricity is realized; the bus arrival information is played only when the hands of the corresponding passengers approach the detection heads of the photoelectric switch A, so that noise interference brought to the passengers is reduced as much as possible; when the on-site temperature is higher than a certain value and the passenger approaches the photoelectric switch, the cooling fan can automatically cool the passenger, and more humanized service is provided for the passenger.
Description
Technical Field
The utility model relates to the technical field of bus stop board equipment, in particular to a novel LCD bus stop board.
Background
An LCD bus stop board (widely applied in electronic bus stop boards) is a device for displaying bus route information based on a liquid crystal display, and mainly has the function of displaying information of corresponding stops and the like (and playing bus information and the like about to enter the stops at any time) through a screen. Along with the development of industrial technology, the technology of the electronic bus stop board is advanced to a certain extent, and the contents of the patent numbers 201620383284.1 and the patent names electronic bus stop board and electronic bus stop board system of China are recorded in the patent which is issued as the patent which solves the problem that the positioning function of the electronic bus stop board is limited, so that the effect of expanding the positioning function of the electronic bus stop board is achieved.
It can be seen from the disclosure of the comparative patent that although the comparative patent achieves the object of the utility model, the present utility model is limited by the structure, and has the following disadvantages, which are relatively single functions, as other LCD bus stop boards in the prior art, and are embodied as follows. The method comprises the following steps: the power is supplied through the power supply circuit, and accordingly the purpose of saving electric energy cannot be achieved. And two,: the information of the buses which are to enter the station is continuously played, and the continuously played sound brings unnecessary noise interference to passengers. And thirdly,: the heat dissipation function cannot be provided for passengers in summer, and more humanized service cannot be achieved.
Disclosure of Invention
The utility model provides an LCD bus stop board body, which not only has the functions of indicating a bus line and the like of a common LCD bus stop board, but also provides a heat dissipation function for passengers waiting for the bus in summer, brings convenience for the passengers, realizes the purpose of saving electric energy by cooperatively supplying power to the solar cell panel and the power supply line, plays bus arrival information when the corresponding passengers need, and reduces noise interference brought to the passengers as much as possible, thereby effectively overcoming the defects of the prior electronic bus stop board as the background due to the limited structure.
The technical scheme adopted for solving the technical problems is as follows:
the novel LCD bus stop board comprises an LCD bus stop board body, a power module, a solar panel, a power inverter, a radiator fan and a storage battery, and is characterized by also comprising a control circuit, a stop reporting circuit and a temperature control circuit; the solar cell panel is arranged on the bus stop, the frame of the LCD bus stop board body is provided with an opening, the cooling fan is arranged in the opening, and the power module, the power inverter, the storage battery, the control circuit, the stop reporting circuit and the temperature control circuit are arranged in the shell of the LCD bus stop board body; the power output end of the control circuit is electrically connected with the power module, the total power input end of the LCD bus stop board body and the control power input end of the temperature control circuit respectively, and the power output end of the temperature control circuit is electrically connected with the power input end of the cooling fan; the audio output ends of the two speakers and the two wiring terminals of the speakers of the main control board of the LCD bus stop board body are electrically connected in series between the two signal ends of the stop reporting circuit.
Preferably, the control circuit comprises a resistor, an NPN triode and a relay which are electrically connected, wherein the negative power input end of the relay is connected with the collector of the NPN triode, one end of the first resistor is connected with one end of the second resistor and one end of the third resistor, the other end of the first resistor is connected with the positive power input end of the relay, the other end of the third resistor is connected with the base electrode of the NPN triode, and the other end of the second resistor is connected with the emitter of the NPN triode.
Preferably, the station reporting circuit comprises an electrically connected photoelectric switch, a relay and a time relay module, wherein the power output end of the photoelectric switch is connected with the positive trigger power input end of the time relay module, the negative power input end of the photoelectric switch is connected with the negative power input end of the time relay module and the negative trigger power input end of the time relay module, the negative power input end of the relay is connected with the positive power input end of the time relay module, and the positive power output end of the time relay module is connected with the positive power input end of the photoelectric switch.
Preferably, the temperature control circuit comprises a photoelectric switch A, a relay A and a temperature control switch which are electrically connected, one end of the temperature control switch is connected with the positive power input end of the photoelectric switch A, and the power output end and the negative power input end of the photoelectric switch A are respectively connected with the two ends of the power input end of the relay A.
Preferably, the photoelectric switch and the detection head of the photoelectric switch A are respectively positioned outside the frame.
Compared with the prior art, the utility model has the beneficial effects that: (1) The novel bus stop board body based on the LCD has the functions of indicating a bus route and the like by the common LCD bus stop board; (2) The novel solar energy bus stop board body is powered by the solar cell panel, the storage battery and the power supply circuit in a cooperative way, so that the purpose of saving electricity is realized; (3) The novel loudspeaker does not sound at ordinary times, and bus arrival information is played only when the hands of the corresponding passengers approach to the detection heads of the photoelectric switch A, so that noise interference brought to the passengers is reduced as much as possible; (4) When the on-site temperature is higher than a certain value and the passenger approaches the photoelectric switch, the cooling fan can automatically cool the passenger, and more humanized service is provided for the passenger.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
Detailed Description
The novel LCD bus stop board comprises an LCD bus stop board body A, a power module A2, a solar panel G1, a power inverter A1, a cooling fan M, a storage battery G2, a control circuit 1, a stop reporting circuit 2 and a temperature control circuit 3, wherein the novel LCD bus stop board is shown in figures 1 and 2; the solar cell panel G1 is arranged at a place where a bus stop is illuminated (such as the upper part of a bus stop pavilion, the upper end of an LCD bus stop board body A is drawn in the drawing for convenience), an opening 4 penetrating through the middle part of a frame of the LCD bus stop board body A is arranged, the cooling fan M is arranged in the opening 4 through bolts, and the power module A2, the power inverter A1, the storage battery G2, the control circuit 1, the stop reporting circuit 2 and the temperature control circuit 3 are arranged on a circuit board in a shell of the LCD bus stop board body A.
As shown in fig. 1 and 2, the control circuit comprises resistors R1, R2 and R3 connected through circuit board wiring, an NPN triode Q1, a relay K1, wherein a negative power input end of the relay K1 is connected with a collector of the NPN triode Q1, one end of the first resistor R1 is connected with one end of the second resistor R2, one end of the third resistor R3, the other end of the first resistor R1 is connected with a positive power input end of the relay K1, the other end of the third resistor R3 is connected with a base of the NPN triode Q1, and the other end of the second resistor R2 is connected with an emitter of the NPN triode Q1. The station reporting circuit comprises a photoelectric switch A3, a relay K2 and a time relay module A5, wherein a power output end 3 pin of the photoelectric switch A3 is connected with a positive trigger power input end 3 pin of the time relay module A5, a negative power input end 2 pin of the photoelectric switch A3 is connected with a negative power input end 2 pin of the time relay module A5, a negative trigger power input end 4 pin of the time relay module A5 and a negative power input end of the relay K2, a positive power output end 9 pin of the time relay module A5 is connected with a positive power input end of the relay K2, and a positive power input end 1 pin of the time relay module A5 is connected with a positive power input end 1 pin of the photoelectric switch A3. The temperature control circuit comprises a photoelectric switch AA4, a relay AK3 and a temperature control switch W which are connected through circuit board wiring, one end of the temperature control switch W is connected with a pin 1 of an anode power input end of the photoelectric switch AA4, and a pin 3 of a power output end of the photoelectric switch AA4 and a pin 2 of a cathode power input end are respectively connected with two ends of a power input end of the relay A. The detection heads of the photoelectric switch A3 and the photoelectric switch AA4 are respectively positioned outside the middle part of the front end of the frame and outside the middle part of the right front end.
As shown in fig. 1 and 2, two poles of a solar panel G1 and two poles of a storage battery G2, two pins 1 and 2 of a power input end of a power inverter A1, one end of a power input end resistor R1 and the other end of the resistor R2 of a control circuit are respectively connected through wires, two normally closed contact ends and two normally open contact ends of a relay K1 of the control circuit are respectively connected with two poles of an alternating current 220V power supply, and two pins 3 and 4 of a power output end of the power inverter A1 are respectively connected through wires. The two control power input ends of the relay K1 at the power output end of the control circuit are respectively connected with the 1 and 2 pins of the power input end of the power module A2, the total power input end of the LCD bus stop board body A and the two control power input ends of the relay K3 at the temperature control circuit through wires, and the two normally open contact ends of the relay K3 at the power output end of the temperature control circuit are respectively connected with the two power input ends of the cooling fan M through wires. The power output ends 3 and 4 pins of the power module A2 are connected with the pins 1 and 2 of the power input end photoelectric switch A3 of the station reporting circuit, the other end of the power input end temperature control switch W of the temperature control circuit and the pin 2 of the negative power input end of the photoelectric switch AA4 respectively through wires. The main control board station reporting loudspeaker B and the two loudspeaker audio output ends of the main control board of the LCD bus station board body are opened, and the two loudspeaker audio output ends of the main control board and the two wiring ends of the loudspeaker B are respectively connected in series between the two control power supply input ends and the two normally open contact ends of the relay K2 through wires.
As shown in fig. 1 and 2, the solar panel G1 is illuminated to generate electric energy to charge the storage battery G2. When the storage battery G2 is not fully charged and the voltage is lower than 12V, the power is divided by the resistors R1 and R2, the voltage and the current of the resistor R3 are reduced, the current of the resistor R3 enter the base electrode of the NPN triode Q1 to be lower than 0.7V, the NPN triode Q1 cannot be conducted, the relay K1 loses electricity, the control power input end and the normally closed contact end of the relay K1 are closed, thus, the 220V power enters the power supply module A2, the power input end of the LCD bus stop board body A and the like through the two control power input ends and the two normally closed contact ends of the relay K1, and the 220V power of the power supply circuit supplies power for the LCD bus stop board body A and the like. When the storage battery G2 is fully charged and the voltage is higher than 12V (at the moment, if the solar cell panel G1 receives relatively large illumination generating capacity, the power is continuously supplied to the LCD bus stop board body A and the like), the voltage of the power is divided by the resistors R1 and R2, the voltage of the resistor R3 is reduced, the current is limited, the base electrode of the NPN triode Q1 is higher than 0.7V, the collector output of the NPN triode Q1 is conducted, the low level of the collector output of the NPN triode Q1 enters the negative electrode power input end of the relay K1, the control power input end of the relay K1 is electrically attracted, the normally closed contact end of the relay K1 is opened, the control power input end and the normally open contact end are closed, and therefore, the power output by the solar cell panel G1 and the storage battery G2 is converted into alternating current 220V power through the power inverter A1, the power enters the power module A2, the power input end of the LCD bus stop board body A and the like through the two control power input ends of the relay K1 and the two normally open contact ends, and the power is cooperatively supplied to the LCD bus stop board body A and the like.
As shown in fig. 1 and 2, after the temperature control circuit is powered on, the field temperature is lower than a certain time (for example, lower than 35 ℃), the internal contact of the temperature control switch W (the temperature sensing surface is located outside the right outer end of the shell) is opened, the photoelectric switch AA4 cannot be powered on, that is, the field temperature is lower than a certain time, and even if a passenger subsequently approaches the front end of the detection head of the photoelectric switch AA4, the cooling fan M cannot be powered on. When the field temperature is higher than a certain value (such as higher than 35 ℃), the internal contact of the temperature control switch W is closed, and the photoelectric switch AA4 can work electrically; when no person approaches the front 60 cm of the probe of the photoelectric switch AA4, the 3 pin of the photoelectric switch AA4 does not output a high level, and then the heat radiation fan M does not work electrically. When a person approaches the front 60 cm of the detection head of the photoelectric switch AA4, the 3-pin output high level of the photoelectric switch AA4 enters the positive power input end of the relay K3, the relay K3 is electrified to attract the control power input end and the normally open contact end of the relay K3 to be closed, and then the cooling fan M can work electrically to blow and dissipate heat for a passenger standing at a certain distance from the front end of the cooling fan M. When no passenger needs to know the information of the bus approaching the bus stop, the relay K2 cannot be electrified to be attracted, audio signals output by the audio output ends of the two speakers of the main control board of the LCD bus stop board body cannot enter the speaker B, and the speaker B cannot play the information of the bus approaching. When a passenger needs to know the information of the bus approaching the bus at the present station, the detecting head of the hand approaching photoelectric switch A3 (the side end is provided with a text prompt, the hand approaches 10 cm, the loudspeaker can play the information of the bus approaching the bus at the present station) within about 10 cm, the 3 pin of the photoelectric switch A3 outputs a high level to enter the 3 pin of the positive trigger signal input end of the time relay module A5, then the 9 pin of the time relay module A5 outputs a certain time power supply (such as 10 seconds and time adjustment) to enter the positive power supply input end of the relay K2, thus, before the detecting head of the hand approaching the photoelectric switch A3 of the passenger, the 9 pin of the time relay module A5 outputs a power supply of 10 seconds to enter the positive power supply input end of the relay K2, then the two control power supply input ends and the two normally open contact ends of the relay K2 are electrically sucked, the audio signals output by the two loudspeaker audio output by the master control board of the LCD bus body enter the loudspeaker B, and the loudspeaker B plays the information approaching the bus (when the hand does not approach the detecting head of the switch A3, the 9 pin of the time relay A does not approach the bus).
Through the above, the novel bus stop board body based on the LCD has the functions of indicating bus lines and the like by the common LCD bus stop board as shown in figures 1 and 2; the solar cell panel, the storage battery and the power supply circuit are used for supplying power to the LCD bus stop board body in a cooperative manner, so that the purpose of saving electricity is realized; the loudspeaker does not sound at ordinary times, and the bus arrival information is played only when the corresponding passenger needs to approach the detection head of the photoelectric switch A by hands, so that noise interference brought to the passenger is reduced as much as possible; when the on-site temperature is higher than a certain value and the passenger approaches the photoelectric switch, the cooling fan can automatically cool the passenger, and more humanized service is provided for the passenger. In fig. 2, relays K1, K2, K3 are DC12V relays; the photoelectric switch A3 and the photoelectric switch AA4 are emission type photoelectric switch finished products with the model of E3F-DS100C4, the photoelectric switch is provided with two power input ends and a signal output end, when a blocking object is blocked by a detection head at the front end of the photoelectric switch, the 3 feet of the photoelectric switch output high level, when no blocking object is blocked, the 3 feet of the photoelectric switch do not output high level, the furthest detection distance is 100 cm, the photoelectric switch is provided with an adjusting knob, the left adjusting detection distance is far, and the right detection distance is near, and the photoelectric switch is respectively adjusted to 60 cm and 10 cm; the power supply module A2 is a finished product of a switching power supply module from alternating current 220V to direct current 12V; the model Q1 of the NPN triode is 9013; the heat dissipation wind-cold M power is 50W (the front side end and the rear side end of the heat dissipation fan frame are both provided with protective net covers for preventing personnel from being injured by contact); the model G1 of the solar panel is 12V and 50W; the model G2 of the storage battery is 12V/100Ah; the power inverter A1 is a finished product of a direct-current 12V power supply to alternating-current 220V power supply inverter, and the power is 1KW; the resistance values of the resistors R1, R2 and R3 are 11.3K, 700 omega and 4.7K respectively; the time relay module A5 is a finished product of a time controller module of the model QUASON, the finished product of the time controller module is provided with two power input ends 1 and 2 feet, two trigger signal input ends 3 and 4 feet, a setting key 5 foot, an emergency stop key 6 foot, a time adding key 7 foot, a time subtracting key 8 foot and a normally open power output end 9 foot, after the positive and negative electrode power input ends of the finished product of the time controller module are electrified, an operator respectively operates the time adding key and the time subtracting key after pressing the setting key, the normally open power output end can be set to output positive electrode power in a required time period, the normally open power output end stops outputting power after the set time period, and the finished product of the time relay module carries out set time timing after the trigger power signals are input to the two trigger signal input ends; the temperature control switch W is a kick normally open contact type 35 ℃ temperature switch of the model KSD 301; speaker B is a moving coil speaker with a power of 5W.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be connected mechanically and electrically, can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with each other inside the two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The novel LCD bus stop board comprises an LCD bus stop board body, a power module, a solar panel, a power inverter, a radiator fan and a storage battery, and is characterized by also comprising a control circuit, a stop reporting circuit and a temperature control circuit; the solar cell panel is arranged on the bus stop, the frame of the LCD bus stop board body is provided with an opening, the cooling fan is arranged in the opening, and the power module, the power inverter, the storage battery, the control circuit, the stop reporting circuit and the temperature control circuit are arranged in the shell of the LCD bus stop board body; the power output end of the control circuit is electrically connected with the power module, the total power input end of the LCD bus stop board body and the control power input end of the temperature control circuit respectively, and the power output end of the temperature control circuit is electrically connected with the power input end of the cooling fan; the audio output ends of the two speakers and the two wiring terminals of the speakers of the main control board of the LCD bus stop board body are electrically connected in series between the two signal ends of the stop reporting circuit.
2. The novel LCD bus stop board according to claim 1, wherein the control circuit comprises a resistor, an NPN triode and a relay which are electrically connected, the negative power input end of the relay is connected with the collector of the NPN triode, one end of the first resistor is connected with one end of the second resistor, one end of the third resistor is connected with one end of the third resistor, the other end of the first resistor is connected with the positive power input end of the relay, the other end of the third resistor is connected with the base of the NPN triode, and the other end of the second resistor is connected with the emitter of the NPN triode.
3. The novel LCD bus stop board according to claim 1, wherein the stop reporting circuit comprises an electrically connected photoelectric switch, a relay and a time relay module, wherein a power output end of the photoelectric switch is connected with an anode trigger power input end of the time relay module, a cathode power input end of the photoelectric switch is connected with a cathode power input end of the time relay module, an anode trigger power input end of the time relay module and a cathode power input end of the relay, an anode power output end of the time relay module is connected with an anode power input end of the relay, and an anode power input end of the time relay module is connected with an anode power input end of the photoelectric switch.
4. The novel LCD bus stop board according to claim 1, wherein the temperature control circuit comprises an electrically connected photoelectric switch a, a relay a and a temperature control switch, one end of the temperature control switch is connected with the positive power input end of the photoelectric switch a, and the power output end and the negative power input end of the photoelectric switch a are respectively connected with the two power input ends of the relay a.
5. The novel LCD bus stop board according to claim 1, wherein the detection heads of the photoelectric switch and the photoelectric switch a are respectively located outside the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414433.9U CN220753005U (en) | 2023-09-06 | 2023-09-06 | Novel LCD bus stop board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414433.9U CN220753005U (en) | 2023-09-06 | 2023-09-06 | Novel LCD bus stop board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753005U true CN220753005U (en) | 2024-04-09 |
Family
ID=90556307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322414433.9U Active CN220753005U (en) | 2023-09-06 | 2023-09-06 | Novel LCD bus stop board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753005U (en) |
-
2023
- 2023-09-06 CN CN202322414433.9U patent/CN220753005U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018064861A1 (en) | Dual-connector electric car direct current charging pile | |
| CN211237446U (en) | Battery management and charging principle training system | |
| CN111129967A (en) | Novel high-integration marine direct-current main distribution board | |
| CN220753005U (en) | Novel LCD bus stop board | |
| CN113922468A (en) | Intelligent charging cabinet of high security | |
| CN110774922A (en) | Equipment and method for reducing standby power consumption of direct current charging pile | |
| CN108556645A (en) | A kind of super capacitor energy-storage type modern times charging electric car mechanism | |
| CN207530583U (en) | A kind of integrated drive generator of multifunction module | |
| CN208538371U (en) | A kind of novel electric vehicle battery system teaching platform | |
| CN215921921U (en) | AC charging pile | |
| CN111130175B (en) | Energy storage bus station based on retired power battery and power supply control method thereof | |
| CN106532520A (en) | Self-cooling cabinet | |
| CN210042665U (en) | Electronic stop board | |
| CN208073049U (en) | A kind of railway emergency service power distribution room | |
| CN221067842U (en) | Novel portable storehouse that charges | |
| CN208445168U (en) | A kind of isolated low-voltage distribution cabinet | |
| CN208461261U (en) | Electronic logistic car high/low voltage distribution box | |
| CN220796206U (en) | LCD bus stop board | |
| CN217133894U (en) | Power battery thermal management simulation display rack | |
| CN211764991U (en) | Centralized charging station for electric vehicle | |
| CN215497812U (en) | Energy-saving power supply controller | |
| CN221125350U (en) | Safety alarm device based on power dispatching | |
| CN220543484U (en) | New energy automobile power battery management practical training platform | |
| CN214900159U (en) | Special power supply box for breakfast vehicle | |
| CN212224744U (en) | Intelligent bus shelter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |