CN218729404U - Automobile remote controller with display screen - Google Patents
Automobile remote controller with display screen Download PDFInfo
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- CN218729404U CN218729404U CN202223004986.9U CN202223004986U CN218729404U CN 218729404 U CN218729404 U CN 218729404U CN 202223004986 U CN202223004986 U CN 202223004986U CN 218729404 U CN218729404 U CN 218729404U
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Abstract
The utility model discloses a take car remote controller of display screen, including car remote controller main part, be equipped with the control command who is used for encrypting the input in the car remote controller main part, the master control circuit of decoding car state feedback information and switching power supply mode, master control circuit is connected with keying circuit, a radio frequency communication circuit for sending encrypted input control instruction and receiving car state feedback information to automobile system, a display screen for showing the car state feedback information who decodes, a power supply circuit for switching signal conversion power supply mode and supplying power to master control circuit and radio frequency communication circuit respectively according to master control circuit power supply mode, transmit remote control instruction to the car through the remote controller, the car is after carrying out remote control instruction to remote controller feedback car state feedback information, the remote controller decodes car state feedback information and shows the car state of feedback on the display screen, thereby realize the remote automobile state of looking over and confirming directly perceivedly.
Description
[ technical field ]
The utility model relates to a take car remote controller of display screen.
[ background art ]
The key type operation remote controller is generally used in the conventional automobile RKE product, an operation result is judged by an automobile owner after the operation by observing the response of the automobile, the automobile needs to check the response of the automobile only in a sight range when the automobile owner operates the automobile, the remote controller operation structure is inconvenient to judge remotely by observing the automobile response, and meanwhile, misjudgment is easily caused by remotely observing the automobile response.
[ contents of utility model ]
The utility model overcomes prior art's is not enough, provides a take display screen and accessible display screen to observe vehicle and carry out remote control command state's automotive remote controller.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a take car remote controller of display screen which characterized in that: the automobile remote controller comprises an automobile remote controller main body, wherein a main control circuit used for encrypting input control instructions, decoding automobile state feedback information and switching power supply modes is arranged in the automobile remote controller main body, the main control circuit is connected with a key circuit used for inputting the control instructions, a radio frequency communication circuit used for sending the encrypted input control instructions to an automobile system and receiving the automobile state feedback information, a display screen used for displaying the decoded automobile state feedback information, and a power supply circuit used for switching a power supply mode according to a power supply mode switching signal of the main control circuit and respectively supplying power to the main control circuit and the radio frequency communication circuit.
The automobile remote controller with the display screen is characterized in that: the main control circuit is connected with a sound prompting circuit used for prompting the decoded automobile state feedback information in a sound mode and a backlight circuit used for improving the display brightness of the display screen, and the power supply circuit supplies power to the sound prompting circuit and the backlight circuit respectively.
The automobile remote controller with the display screen is characterized in that: the radio frequency communication circuit comprises a radio frequency communication chip U1, a pin 1 of the radio frequency communication chip U1 is grounded, a pin 2 of the radio frequency communication chip U1 is respectively connected with one end of an inductor L1 and one end of a capacitor C8 through a capacitor C9, the other end of the inductor L1 is grounded, the other end of the capacitor C8 is respectively connected with one end of a capacitor C7 and one end of a capacitor C12, the other end of the capacitor C12 is connected with a pin 3 of the radio frequency communication chip U1, the other end of the capacitor C7 is respectively connected with one end of a capacitor C15 and one end of an inductor L2 through an inductor L3, the other end of the capacitor C15 is grounded, the other end of the inductor L2 is respectively connected with one end of a capacitor C14 and one end of a capacitor C6, the other end of the capacitor C14 is grounded, and the other end of the capacitor C6 is connected with an antenna TX1, A pin 3 of a radio frequency communication chip U1 is respectively connected with a +3.2V power supply and one end of a capacitor C17 through an inductor L5, the other end of the capacitor C17 is grounded, a pin 4 of the radio frequency communication chip U1, a pin 7, a pin 15 and a pin 17 are respectively grounded, the pin 3 of the radio frequency communication chip U1 is connected with a pin 3 of a crystal oscillator X1, the pin 1 of the crystal oscillator X1 is connected with a pin 9 of the radio frequency communication chip U1, the pin 2 of the crystal oscillator X1 and the pin 4 are respectively grounded, pins 10-13 of the radio frequency communication chip U1 are respectively connected with a main control circuit, a pin 16 of the radio frequency communication chip U1 is respectively connected with one end of the capacitor C1, one end of the capacitor C2, +3.2V power supply, and the other end of the capacitor C1 and the other end of the capacitor C2 are respectively grounded.
The automobile remote controller with the display screen is characterized in that: the main control circuit comprises a control chip U5, pins 3-6 of the control chip U5 are respectively connected with a key circuit, pins 9-12 of the control chip U5 are respectively connected with a radio frequency communication circuit, pins 18-24 of the control chip U5 are respectively connected with a display screen, pin 32 of the control chip U5 is connected with a power circuit, pin 35 of the control chip U5 is connected with a backlight circuit, and pin 36 of the control chip U5 is connected with a sound prompt circuit.
The automobile remote controller with the display screen is characterized in that: power supply circuit is including step-down chip U3, step-down chip U3 pin 1 respectively with step-down chip U3 pin 3 through inductance L7, electric capacity C5 one end is connected, electric capacity C5 other end ground connection, step-down chip U3 pin 3 is connected with the battery, battery output +3.2V power, step-down chip U3 pin 2 passes through electric capacity C4 ground connection, step-down chip U3 pin 2 output +3V power, step-down chip U3 pin 4 is connected with master control circuit, step-down chip U3 pin 5 output +3V power, step-down chip U3 pin 6-7 ground connection respectively.
The automobile remote controller with the display screen is characterized in that: the sound prompt circuit comprises a buzzer BUZ1, a pin 1 of the buzzer BUZ1 is connected with a +3.2V power supply through a resistor R3, a pin 2 of the buzzer BUZ1 is connected with a collector of a triode Q2, a base of the triode Q2 is connected with a main control circuit, and an emitter of the triode Q2 and pins 3-4 of the buzzer BUZ1 are respectively grounded.
The automobile remote controller with the display screen is characterized in that: the backlight circuit comprises a backlight LED1, the positive terminal of the backlight LED1 is connected with a +3V power supply through a resistor R1, the negative terminal of the backlight LED1 is connected with the collector of a triode Q1, the base of the triode Q1 is connected with a main control circuit through a resistor R2, and the emitter of the triode Q1 is grounded.
The automobile remote controller with the display screen is characterized in that: the display screen is an LCD liquid crystal display screen.
The automobile remote controller with the display screen is characterized in that: the display screen is arranged on the top surface of the automobile remote controller main body.
The automobile remote controller with the display screen is characterized in that: the input keys in the key circuit are all arranged on the top surface of the automobile remote controller main body.
The utility model has the advantages that:
1. the utility model discloses be provided with and be equipped with the display screen on the car remote controller, through the remote controller to car transmission remote control instruction, the car is after carrying out remote control instruction to remote controller feedback car state feedback information, and the remote controller decodes car state feedback information and shows the car state of feedback on the display screen to realize that remote directly perceived looks over and confirm the car state, and can reduce the erroneous judgement.
2. The utility model discloses when well master control circuit is in different mode, can switch power supply circuit into the power supply mode of difference and supply power to each circuit respectively, can make each circuit of system coordinate work under the low-power consumption to prolong battery life greatly.
3. The utility model discloses a car feedback car state information to the mode that shows on the remote controller display screen has improved the car theftproof function greatly, and the car owner permeable observes the information confirmation car on the display screen and whether locks, can prevent that instruments such as co-channel interference ware from leading to locking inefficacy, leads to the car owner to leave the property on the car behind the car sight range under the unknown circumstances and is stolen.
4. The utility model discloses a display screen can look over automobile state and car information fast, sets up the display screen on the remote controller more and has the aesthetic property simultaneously, and improves the user and use experience and feel.
[ description of the drawings ]
FIG. 1 is a schematic view of an automotive remote controller according to the present invention;
fig. 2 is the schematic diagram of the circuit structure of the remote controller of the present invention.
[ detailed description of the invention ]
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.
As shown in fig. 1-2, an automobile remote controller with a display screen comprises an automobile remote controller main body, a main control circuit 1 for encrypting an input control instruction, decoding automobile state feedback information and switching a power supply mode is arranged in the automobile remote controller main body, the main control circuit 1 is connected with a key circuit 2 for inputting the control instruction, a radio frequency communication circuit 3 for sending the encrypted input control instruction to an automobile system and receiving the automobile state feedback information, a display screen 4 for displaying the decoded automobile state feedback information, and a power supply circuit 5 for switching the power supply mode according to a power supply mode switching signal of the main control circuit 1 and respectively supplying power to the main control circuit 1 and the radio frequency communication circuit 3.
In actual use, after a user inputs remote control instructions such as locking a vehicle through the key circuit 2, the main control circuit 1 encrypts the input remote control instructions and sends the encrypted remote control instructions to the automobile system through the radio frequency communication circuit 3, the automobile system executes remote control decryption and executes the remote control instructions and then feeds back encrypted automobile state information to the radio frequency communication circuit 3, the radio frequency communication circuit 3 receives the encrypted automobile feedback information and sends the encrypted automobile feedback information to the main control circuit 1, the main control circuit 1 decrypts the automobile feedback information and displays the decoded automobile state feedback information on the display screen 4 for the user to check, and the functions of intuitive remote control and automobile execution state feedback check are achieved.
As shown in fig. 2, the main control circuit 1 is connected with a sound presentation circuit 6 for presenting decoded car state feedback information by sound and a backlight circuit 7 for increasing the display brightness of the display panel 4, and the power supply circuit 5 supplies power to the sound presentation circuit 6 and the backlight circuit 7, respectively. The backlight circuit 7 is arranged on the back of the display screen 4, so that the display brightness of the display screen 4 can be improved, and the feedback information of the automobile state can be checked through the display screen 4 in a high-brightness environment; and simultaneously, after receiving the automobile state feedback information, sending out the sound prompt of the automobile for executing the corresponding remote control instruction through the sound prompt state 6.
In the present case, the main control circuit 1 has three power supply modes in advance, including a working mode, a standby mode and a sleep mode, and in the using process of the remote controller, the main control circuit 1 can switch the power supply circuit 5 to different power supply modes according to different working modes to supply power to each circuit respectively. When the main control circuit 1 of the remote controller switches the power supply circuit 5 into a working mode, each circuit is in a normal working state capable of operating immediately and responding; when the main control circuit 1 of the remote controller switches the power supply circuit 5 into a standby mode, the main control circuit 1 and the key circuit 2 are in a normal working state, and the other circuits are in a low power consumption state, namely, only responding to external key instruction input; when the main control circuit 1 of the remote controller switches the power supply circuit 5 into the sleep mode, all circuits of the system can effectively work coordinately under the low power consumption design condition, thereby prolonging the service life of the battery.
In this case, the display screen 4 is arranged on the top surface of the main body of the automobile remote controller; the input keys in the key circuit 2 are all arranged on the top surface of the automobile remote controller main body. The user can conveniently check the automobile feedback state through the display screen 4, and the user can conveniently input the remote control instruction through the input keys after checking the automobile feedback state information of the display screen 4.
As shown in fig. 2, the main control circuit 1 includes a control chip U5, and pins 3-6 of the control chip U5 are respectively connected to the key circuit 2, and are configured to receive a remote control instruction input by a key in the key circuit 2; pins 9-12 of the U5 of the control chip are respectively connected with the radio frequency communication circuit 3, after a remote control command input by a key is received, the remote control command is encrypted and sent to the radio frequency communication circuit 3 through the pins 9-12 of the U5 of the control chip, and the radio frequency communication circuit 3 then transmits the encrypted remote control command to an automobile system; pins 18-24 of the control chip U5 are respectively connected with the display screen 4, the encrypted automobile state feedback information is received by the radio frequency communication circuit 3 and then transmitted to the control chip U5, and the automobile state feedback information is decrypted by the control chip U5 and then transmitted to the display screen 4 to display the automobile state information; and a pin 36 of the control chip U5 is connected with the sound prompt circuit 6, and controls the sound prompt circuit 6 to send out a sound prompt for the automobile to execute a corresponding remote control instruction while controlling the display screen to display automobile state information. The pin 35 of the control chip U5 is connected with the backlight circuit 7 and is used for controlling the backlight circuit 7 to work so as to improve the display brightness of the display screen; and the pin 32 of the control chip U5 is connected with the power supply circuit 5 and used for switching the power supply mode of the power supply circuit 5.
As shown in fig. 2, four keys, namely a key K1, a key K2, a key K3, and a key K4, are arranged in the key circuit 2, and the four keys respectively have a car locking function, an unlocking function, a sound prompt function, and a mute function, and meanwhile, multiple operation modes among the keys can generate multiple remote control instruction functions, so that the use modes of the keys are increased.
As shown in fig. 1, the rf communication circuit 3 includes an rf communication chip U1, a pin 1 of the rf communication chip U1 is grounded, a pin 2 of the rf communication chip U1 is connected to one end of an inductor L1 and one end of a capacitor C8 through a capacitor C9, the other end of the inductor L1 is grounded, the other end of the capacitor C8 is connected to one end of a capacitor C7 and one end of a capacitor C12, the other end of the capacitor C12 is connected to the pin 3 of the rf communication chip U1, the other end of the capacitor C7 is connected to one end of a capacitor C15 and one end of an inductor L2 through an inductor L3, the other end of the capacitor C15 is grounded, the other end of the inductor L2 is connected to one end of a capacitor C14 and one end of a capacitor C6, the other end of the capacitor C14 is grounded, and the other end of the capacitor C6 is connected to the antenna TX1, a pin 3 of a radio frequency communication chip U1 is respectively connected with a +3.2V power supply and one end of a capacitor C17 through an inductor L5, the other end of the capacitor C17 is grounded, a pin 4 of the radio frequency communication chip U1, a pin 7, a pin 15 and a pin 17 are respectively grounded, the pin 3 of the radio frequency communication chip U1 is connected with a pin 3 of a crystal oscillator X1, the pin 1 of the crystal oscillator X1 is connected with a pin 9 of the radio frequency communication chip U1, the pin 2 of the crystal oscillator X1 and the pin 4 are respectively grounded, pins 10-13 of the radio frequency communication chip U1 are respectively connected with a main control circuit 1, a pin 16 of the radio frequency communication chip U1 is respectively connected with one end of the capacitor C1, one end of the capacitor C2, +3.2V power supply, and the other end of the capacitor C1 and the other end of the capacitor C2 are respectively grounded. After receiving the encrypted remote control instruction of the control circuit 1, the radio frequency communication chip U1 sends the encrypted remote control instruction to an automobile system through the antenna TX1 to enable the automobile to execute the remote control instruction, the remote control instruction data is sent and processed in an encryption mode, malicious aerial data can be prevented from being intercepted and decrypted, and meanwhile the antenna TX1 receives encrypted automobile state feedback information fed back by the automobile system and transmits the encrypted automobile state feedback information to the control circuit 1 to be decrypted to obtain automobile state information data.
As shown in fig. 2, the display screen 4 is an LCD liquid crystal display screen, and the control circuit 1 displays the vehicle status information data on the LCD liquid crystal display screen of the vehicle remote controller.
As shown in fig. 2, the sound prompt circuit 6 includes a buzzer BUZ1, a pin 1 of the buzzer BUZ1 is connected with a +3.2V power supply through a resistor R3, a pin 2 of the buzzer BUZ1 is connected with a collector of a triode Q2, a base of the triode Q2 is connected with the main control circuit 1, and an emitter of the triode Q2 and pins 3-4 of the buzzer BUZ1 are grounded respectively. The control circuit 1 controls the triode Q2 to be conducted, so that the buzzer BUZ1 works and sends out a sound prompt for the automobile to execute a corresponding remote control instruction.
As shown in fig. 2, the backlight circuit 7 includes a backlight LED1, a positive terminal of the backlight LED1 is connected to the +3V power supply through a resistor R1, a negative terminal of the backlight LED1 is connected to a collector of a transistor Q1, a base of the transistor Q1 is connected to the main control circuit 1 through a resistor R2, and an emitter of the transistor Q1 is grounded. When the display screen 4 is controlled to display the automobile state information, the triode Q1 is controlled to be conducted, so that the backlight LED1 emits light, and the display brightness of the display screen 4 is improved.
As shown in fig. 2, power supply circuit 5 is including step-down chip U3, step-down chip U3 pin 1 respectively with step-down chip U3 pin 3 through inductance L7, electric capacity C5 one end is connected, electric capacity C5 other end ground connection, step-down chip U3 pin 3 is connected with the battery, battery output +3.2V power, step-down chip U3 pin 2 passes through electric capacity C4 ground connection, step-down chip U3 pin 2 output +3V power, step-down chip U3 pin 4 is connected with main control circuit 1, step-down chip U3 pin 5 output +3V power, step-down chip U3 pin 6-7 ground connection respectively. The battery outputs +3.2V power to supply power to the radio frequency communication circuit 3 and the sound prompt circuit 6 respectively; the battery outputs +3.2V power supply, and the +3V power supply is output to supply power to the main control circuit 1 and the backlight circuit 7 respectively after passing through the voltage reduction chip U3. Meanwhile, the main control circuit 1 can switch different power supply modes so as to control the power supply power output of the power supply circuit, and each circuit is in a normal working state if in a working mode; in the standby mode, the main control circuit 1 and the key circuit 2 are in a normal working state and keep a response state to the outside; when in the sleep mode, all the circuits are in a low power consumption state, different power supply modes are switched according to the actual use state of the remote controller, and the service life of the battery can be prolonged.
The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a take car remote controller of display screen which characterized in that: the automobile remote controller comprises an automobile remote controller main body, a control instruction used for encrypting input is arranged in the automobile remote controller main body, a main control circuit (1) used for decoding automobile state feedback information and switching a power supply mode is arranged in the automobile remote controller main body, the main control circuit (1) is connected with a key circuit (2) used for inputting the control instruction, a radio frequency communication circuit (3) used for sending the encrypted input control instruction to an automobile system and receiving the automobile state feedback information, a display screen (4) used for displaying the decoded automobile state feedback information, and a power circuit (5) used for switching a power supply mode according to the power supply mode of the main control circuit (1) and respectively supplying power to the main control circuit (1) and the radio frequency communication circuit (3).
2. The automobile remote controller with the display screen according to claim 1, characterized in that: the main control circuit (1) is connected with a sound prompt circuit (6) for prompting the decoded automobile state feedback information in a sound mode and a backlight circuit (7) for improving the display brightness of the display screen (4), and the power supply circuit (5) supplies power to the sound prompt circuit (6) and the backlight circuit (7) respectively.
3. The automobile remote controller with the display screen according to claim 1, characterized in that: the radio frequency communication circuit (3) comprises a radio frequency communication chip U1, a pin 1 of the radio frequency communication chip U1 is grounded, a pin 2 of the radio frequency communication chip U1 is respectively connected with one end of an inductor L1 and one end of a capacitor C8 through a capacitor C9, the other end of the inductor L1 is grounded, the other end of the capacitor C8 is respectively connected with one end of a capacitor C7 and one end of a capacitor C12, the other end of the capacitor C12 is connected with a pin 3 of the radio frequency communication chip U1, the other end of the capacitor C7 is respectively connected with one end of a capacitor C15 and one end of an inductor L2 through an inductor L3, the other end of the capacitor C15 is grounded, the other end of the inductor L2 is respectively connected with one end of a capacitor C14 and one end of a capacitor C6, the other end of the capacitor C14 is grounded, and the other end of the capacitor C6 is connected with an antenna TX1, A pin 3 of a radio frequency communication chip U1 is respectively connected with a +3.2V power supply and one end of a capacitor C17 through an inductor L5, the other end of the capacitor C17 is grounded, a pin 4, a pin 7, a pin 15 and a pin 17 of the radio frequency communication chip U1 are respectively grounded, the pin 3 of the radio frequency communication chip U1 is connected with a pin 3 of a crystal oscillator X1, the pin 1 of the crystal oscillator X1 is connected with a pin 9 of the radio frequency communication chip U1, the pin 2 and the pin 4 of the crystal oscillator X1 are respectively grounded, pins 10-13 of the radio frequency communication chip U1 are respectively connected with a main control circuit (1), a pin 16 of the radio frequency communication chip U1 is respectively connected with one end of the capacitor C1, one end of the capacitor C2, +3.2V power supply, and the other end of the capacitor C1 and the other end of the capacitor C2 are respectively grounded.
4. The automobile remote controller with the display screen according to claim 2, characterized in that: the main control circuit (1) comprises a control chip U5, pins 3-6 of the control chip U5 are respectively connected with the key circuit (2), pins 9-12 of the control chip U5 are respectively connected with the radio frequency communication circuit (3), pins 18-24 of the control chip U5 are respectively connected with the display screen (4), a pin 32 of the control chip U5 is connected with the power circuit (5), a pin 35 of the control chip U5 is connected with the backlight circuit (7), and a pin 36 of the control chip U5 is connected with the sound prompt circuit (6).
5. The automobile remote controller with the display screen according to claim 2, characterized in that: power supply circuit (5) is including step-down chip U3, step-down chip U3 pin 1 respectively with step-down chip U3 pin 3 through inductance L7, electric capacity C5 one end is connected, electric capacity C5 other end ground connection, step-down chip U3 pin 3 is connected with the battery, battery output +3.2V power, step-down chip U3 pin 2 passes through electric capacity C4 ground connection, step-down chip U3 pin 2 output +3V power, step-down chip U3 pin 4 is connected with main control circuit (1), step-down chip U3 pin 5 output +3V power, step-down chip U3 pin 6-7 ground connection respectively.
6. The automobile remote controller with a display screen of claim 2, wherein: the sound prompt circuit (6) comprises a buzzer BUZ1, a pin 1 of the buzzer BUZ1 is connected with a +3.2V power supply through a resistor R3, a pin 2 of the buzzer BUZ1 is connected with a collector of a triode Q2, a base of the triode Q2 is connected with the main control circuit (1), and an emitter of the triode Q2 and 3-4 pins of the buzzer BUZ1 are respectively grounded.
7. The automobile remote controller with the display screen according to claim 2, characterized in that: the backlight circuit (7) comprises a backlight LED1, the positive end of the backlight LED1 is connected with a +3V power supply through a resistor R1, the negative end of the backlight LED1 is connected with the collector electrode of a triode Q1, the base electrode of the triode Q1 is connected with the main control circuit (1) through a resistor R2, and the emitter electrode of the triode Q1 is grounded.
8. The automobile remote controller with the display screen according to claim 1, characterized in that: the display screen (4) is an LCD liquid crystal display screen.
9. The automobile remote controller with the display screen according to claim 1 or 8, characterized in that: the display screen (4) is arranged on the top surface of the automobile remote controller main body.
10. The automobile remote controller with a display screen of claim 1, wherein: the input keys in the key circuit (2) are all arranged on the top surface of the automobile remote controller main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223004986.9U CN218729404U (en) | 2022-11-11 | 2022-11-11 | Automobile remote controller with display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223004986.9U CN218729404U (en) | 2022-11-11 | 2022-11-11 | Automobile remote controller with display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218729404U true CN218729404U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223004986.9U Active CN218729404U (en) | 2022-11-11 | 2022-11-11 | Automobile remote controller with display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218729404U (en) |
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2022
- 2022-11-11 CN CN202223004986.9U patent/CN218729404U/en active Active
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