CN110273581B - Automobile remote control key based on thermoelectric generation - Google Patents
Automobile remote control key based on thermoelectric generation Download PDFInfo
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- CN110273581B CN110273581B CN201910329095.4A CN201910329095A CN110273581B CN 110273581 B CN110273581 B CN 110273581B CN 201910329095 A CN201910329095 A CN 201910329095A CN 110273581 B CN110273581 B CN 110273581B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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Abstract
The invention relates to the technical field of automobile keys. An automobile remote control key based on thermoelectric power generation comprises a key body, a power supply module, a main control module, an information conversion module and an information display module; the method is characterized in that: the right side of the key body is connected with a temperature difference power generation device; the temperature difference power generation device comprises a temperature difference power generation main module and a voltage stabilizing module, wherein the output end of the voltage stabilizing module is connected with the input end of the power supply module, and the voltage stabilizing module is arranged in the first cavity; the thermoelectric power generation main module comprises a metal upper plate, a metal lower plate, a first asbestos heat insulation layer, a second asbestos heat insulation layer, a thermoelectric power generation sheet, an upper insulating heat conduction layer and a lower insulating heat conduction layer, and the thermoelectric power generation sheet unit is arranged in a second cavity; the output end of the temperature difference power generation sheet unit is connected with the input end of the voltage stabilizing module. According to the invention, under the condition that the electric quantity of the automobile remote control key is insufficient, the heat source is close to or contacts the metal lower plate, efficient temperature difference power generation is carried out through the temperature difference thermoelectric piece, power is supplied to the battery in the remote control key, and the endurance of the remote control key under the emergency condition is ensured.
Description
Technical Field
The invention relates to the technical field of automobile keys, in particular to an automobile remote control key based on thermoelectric power generation.
Background
With the rapid development of automobiles, the technology of automobiles is also continuously developed and updated according to the needs of users. In order to meet the requirements of users on intellectualization and convenience comfort, the system for entering and starting the automobile remote control key is introduced to a new automobile. The existing intelligent remote control key system adopts a radio frequency technology, when a driver carries a car key to enter a set range, the car automatically identifies the key information and confirms the key information with stored identity information, then the car door and an engine are automatically opened to unlock, and then the driver presses a start key in a cab to directly start the car.
At present, all commonly used automobile remote control keys are powered by built-in button batteries, but when the automobile remote control keys are used, a driver cannot often pay attention to the electricity usage condition of the remote control keys. In the prior art, if the electric quantity of a lithium battery in the remote control key is insufficient, a driver needs to press the remote control key close to a door handle, the remote control key is unlocked by sensing the whole vehicle in a short distance, and after the driver enters the vehicle, the key needs to be placed in a specific position to sense the engine of the engine for unlocking, and then the vehicle can be started, so that the starting of the vehicle becomes troublesome and cumbersome, and inconvenience is brought to the driver.
Disclosure of Invention
The invention aims to provide an automobile remote control key based on thermoelectric power generation, which is high in battery endurance.
In order to achieve the purpose, the technical scheme of the invention is as follows: an automobile remote control key based on thermoelectric power generation comprises a key body, a power supply module, a main control module, an information conversion module and an information display module; the key body comprises a top cover 4 and a bottom cover 3, the top cover and the bottom cover are buckled, and a first cavity 5 is formed between the top cover 4 and the bottom cover 3; the power supply module respectively supplies power to the main control module, the information conversion module and the information display module; the information conversion module is connected with an information conversion port of the main control module, and the information display module is connected with an information display port of the main control module; the information display module is embedded into the top cover, the top cover is provided with a key, a contact is arranged below the key, and the contact is electrically connected with the information conversion module; the main control module and the information conversion module are arranged on the PCB, and the PCB and the power supply module are arranged in the first cavity 5; the method is characterized in that: the right side of the key body is connected with a temperature difference power generation device;
the temperature difference power generation device comprises a temperature difference power generation main module and a voltage stabilizing module, wherein the output end of the voltage stabilizing module is connected with the input end of the power supply module, and the voltage stabilizing module is arranged in the first cavity 5; the thermoelectric generation main module comprises a metal upper plate 9, a metal lower plate 11, a first asbestos heat insulation layer 6, a second asbestos heat insulation layer 10, a thermoelectric generation sheet 8, an upper insulation heat conduction layer 7 and a lower insulation heat conduction layer 12, wherein the left side of the metal upper plate 9 is fixedly connected with the right side of the top cover 4, the left side of the metal lower plate 11 is fixedly connected with the right side of the bottom cover 3, the first asbestos heat insulation layer 6 is installed at the left end part between the metal upper plate 9 and the metal lower plate 11, the second asbestos heat insulation layer 10 is installed at the right end part between the metal upper plate 9 and the metal lower plate 11, the upper insulation heat conduction layer 7 is attached to the lower surface of the metal upper plate 9, the lower insulation heat conduction layer 12 is attached to the upper surface of the metal lower plate 11, a second cavity is formed between the upper insulation heat conduction layer; the output end of the temperature difference power generation sheet unit is connected with the input end of the voltage stabilizing module.
Further, the thermoelectric generation piece unit comprises a plurality of groups of thermoelectric generation pieces; each group of thermoelectric generation pieces is formed by connecting a plurality of thermoelectric generation pieces 8 in series, and a plurality of groups of thermoelectric generation pieces are connected in parallel and then connected with the input end of the voltage stabilizing module.
Furthermore, gaps are reserved among the plurality of thermoelectric generation pieces 8; the heat input end face of the thermoelectric generation piece is attached to the lower metal plate through the lower insulating heat conduction layer 12, and the heat output end face is attached to the upper metal plate 9 through the upper insulating heat conduction layer 7.
Further, the thickness of the first asbestos thermal insulation layer is 2-4 mm.
Furthermore, the thermoelectric conversion material with high thermoelectric conversion efficiency is adopted by the thermoelectric generation piece, and the operating temperature difference range is-50-70 ℃.
Further, the information conversion module is used for receiving and transmitting signals, receiving state information about automobile doors, an engine, windows, a trunk and the like transmitted inside the automobile, and transmitting instructions of door unlocking, engine unlocking and the like to the in-automobile controller.
Furthermore, the main control module is responsible for processing key state information and power supply management, receives authentication information and state information from the automobile by the information conversion module, transmits the information to the information display module, then transmits the processed information to the information conversion module, and transmits the information to the automobile by the information conversion module for information exchange.
Further, the information display module is used for displaying vehicle state information, including a vehicle door unlocking state, whether a vehicle window skylight is closed, electric quantity, fault information and the like.
Further, the main thermoelectric generation module is provided with a sleep mode and a working mode; the sleep mode is that the automobile remote control key is out of the remote control range of the automobile; the working mode is that the automobile remote control key is awakened to enter the working mode when being within the remote control range of the automobile and is in communication connection with the automobile.
The beneficial effects obtained by the invention are as follows: the space of the automobile remote control key is fully utilized, the thermoelectric power generation device is integrated in the remote control key, the thermoelectric power generation main module is used for charging the rechargeable battery of the key by using a thermoelectric power generation method, the cruising ability of the rechargeable battery is ensured, and the heat source is effectively utilized for carrying out emergency charging on the rechargeable battery of the remote control key.
Drawings
Fig. 1 is a schematic view of the internal position of an automobile remote control key based on thermoelectric power generation according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a thermoelectric power generation device of an automobile remote control key based on thermoelectric power generation according to an embodiment of the present invention.
In the figure: 1-PCB board, 2-battery, 3-bottom cover, 4-top cover, 5-first cavity, 6-first asbestos heat insulation layer, 7-upper insulation heat conduction layer, 8-thermoelectric generation sheet, 9-metal upper plate, 10-second asbestos heat insulation layer, 11-metal lower plate, and 12-lower insulation heat conduction layer.
Detailed Description
In order to facilitate understanding of the objects, technical solutions and advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, an automobile remote control key based on thermoelectric power generation comprises a key body, a power module, a main control module, an information conversion module, an information display module and a thermoelectric power generation device; the key body comprises a top cover 4 and a bottom cover 3, the top cover and the bottom cover are buckled (can be connected by screws), and a first cavity 5 is formed between the top cover 4 and the bottom cover 3; the power supply module respectively provides power (namely is electrically connected) for the main control module, the information conversion module and the information display module; the information conversion module is connected with an information conversion port of the main control module, and the information display module is connected with an information display port of the main control module; the information display module is embedded into the top cover, the top cover is provided with keys, contacts are arranged below the keys, and the contacts are electrically connected with the information conversion module (a plurality of keys are pressed, the keys can be connected with the contacts by pressing the keys, so that the functions of opening and closing automobile doors, engines, automobile windows, trunk boxes and the like are realized, and the prior art is adopted); the main control module and the information conversion module are arranged on a PCB (printed circuit board), and the PCB and the power supply module (the power supply module comprises a battery 2) are arranged in the first cavity 5 (fixed on the upper part of the bottom cover); the right side of the key body is connected with a temperature difference power generation device (the temperature difference power generation device generates electric energy to be stored in a rechargeable battery of the power module, the duration of the rechargeable battery is prolonged, and the functional reliability of the automobile remote control key is ensured);
the temperature difference power generation device comprises a temperature difference power generation main module and a voltage stabilizing module, wherein the output end of the voltage stabilizing module is connected with the input end of a power supply module (battery), and the voltage stabilizing module is arranged in the first cavity 5 (fixed on the upper part of the bottom cover); the main thermoelectric generation module comprises a metal upper plate 9, a metal lower plate 11, a first asbestos heat insulation layer 6, a second asbestos heat insulation layer 10, a thermoelectric generation sheet 8, an upper insulation heat conduction layer 7 and a lower insulation heat conduction layer 12, wherein the left side of the metal upper plate 9 is fixedly connected with the right side of the top cover 4, the left side of the metal lower plate 11 is fixedly connected with the right side of the bottom cover 3, the first asbestos heat insulation layer 6 is arranged at the left end part between the metal upper plate 9 and the metal lower plate 11, the second asbestos heat insulation layer 10 is arranged at the right end part between the metal upper plate 9 and the metal lower plate 11, the upper insulation heat conduction layer 7 is attached to the lower side of the metal upper plate 9, the lower insulation heat conduction layer 12 is attached to the upper side of the metal lower plate 11 (the upper insulation heat conduction layer 7 and the lower insulation heat conduction layer 12 are positioned between the first asbestos heat insulation layer 6, a plurality of groups of thermoelectric generation pieces (a plurality of groups of thermoelectric generation pieces form a thermoelectric generation piece unit) are arranged in the second cavity (such as 2-10 groups); each group of thermoelectric generation pieces is formed by connecting a plurality of thermoelectric generation pieces 8 in series (such as 2-10 pieces), and a plurality of groups of thermoelectric generation pieces are connected in parallel and then connected with the input end of the voltage stabilizing module (connected by a lead, and the electric energy generated by the main thermoelectric generation module is boosted by the voltage stabilizing module and then outputs stable direct current to the rechargeable battery of the power module).
A certain gap is formed between the plurality of thermoelectric generation pieces 8. The key body and the temperature difference power generation device are separated by a first asbestos heat insulation layer of 2-4mm, so that a PCB (printed circuit board) and a battery are protected.
The thermoelectric generation piece is made of thermoelectric conversion materials suitable for high-efficiency thermoelectric generation, preferably Bi2Te3 type semiconductor thermoelectric materials which are the thermoelectric materials with the best performance and the most extensive application in a room temperature environment. The thermoelectric conversion material with high thermoelectric conversion efficiency is adopted by the thermoelectric generation piece, and the operating temperature difference range is-50-70 ℃.
The thermoelectric generation device charges a rechargeable battery, and then the power module distributes electric energy to the information conversion module, the main control module and the information display module. The information display module is used for displaying vehicle information, including unlocking and locking of a vehicle door, whether a vehicle window skylight is closed, electric quantity, fault information and the like.
The information conversion module can be used for carrying out a signal receiving and sending module (capable of transmitting vehicle state information), receiving state information about automobile doors, an engine, windows, a trunk and the like sent by the interior of an automobile, and sending instructions of door unlocking, engine unlocking and the like to an in-automobile controller.
The main control module is responsible for processing key state information and power management (receiving, processing and sending information), is connected with the information conversion module and the information display module, receives authentication information and state information from an automobile of the information conversion module, transmits the information to the information display module, then sends the processed information to the information conversion module, and sends the information to the automobile by the information conversion module for information exchange. The master control module monitors state information of the remote control key and sends the state information of the vehicle to the information display module.
The information display module is used for displaying vehicle state information including a vehicle door unlocking and locking state, whether a vehicle window skylight is closed, electric quantity, fault information and the like.
The heat input end face of the thermoelectric generation piece is attached to the lower metal plate through the lower insulating heat conduction layer 12, and the heat output end face is attached to the upper metal plate 9 through the upper insulating heat conduction layer 7.
The first asbestos heat insulation layer 6 is used for isolating the main thermoelectric generation module from the key body and plays a heat insulation role.
Two ends of the temperature difference thermoelectric piece of the main temperature difference power generation module are respectively connected with the voltage stabilizing module through leads, and the voltage stabilizing module is connected with the rechargeable battery in the power supply module. The temperature difference thermoelectric piece detects that a temperature difference is formed between a heat source transmitted by the insulating heat conduction layer and the cold end, when the temperature difference reaches a temperature value capable of generating a thermoelectric effect, a current is generated through the thermoelectric effect, the current is transmitted to the voltage stabilizing module through the conducting wire, and is boosted to the rechargeable battery voltage of the power management module through the voltage stabilizing module to charge the battery.
The main thermoelectric generation module is provided with a sleep mode and a working mode; the sleep mode is that the automobile remote control key is out of the remote control range of the automobile; the working mode is that the automobile remote control key is awakened to enter the working mode when being within the remote control range of the automobile and is in communication connection with the automobile.
As shown in fig. 2, when the remote control key is used, the lower metal plate senses surrounding low-grade heat sources, such as human skin, sunlight irradiation, lighters and the like, temperature difference is formed between the lower metal plate and the upper metal plate, the thermoelectric generation sheets can generate weak current according to thermoelectric effect, the voltage and the current of the thermoelectric generation module are improved through the series-parallel connection of a plurality of groups of thermoelectric generation sheets, then the current is sent to the voltage stabilization module through a lead, the voltage is converted into charging voltage required by the rechargeable battery, the rechargeable battery is charged, and the rechargeable battery can store the electricity generated by the thermoelectric generation device and is used by accessories of the remote control key, such as the information conversion module and the main control module.
Claims (9)
1. An automobile remote control key based on thermoelectric power generation comprises a key body, a power supply module, a main control module, an information conversion module and an information display module; the key body comprises a top cover (4) and a bottom cover (3), the top cover and the bottom cover are buckled, and a first cavity (5) is formed between the top cover (4) and the bottom cover (3); the power supply module respectively supplies power to the main control module, the information conversion module and the information display module; the information conversion module is connected with an information conversion port of the main control module, and the information display module is connected with an information display port of the main control module; the information display module is embedded into the top cover, the top cover is provided with a key, a contact is arranged below the key, and the contact is electrically connected with the information conversion module; the main control module and the information conversion module are arranged on the PCB, and the PCB and the power supply module are arranged in the first cavity (5); the method is characterized in that: the right side of the key body is connected with a temperature difference power generation device;
the temperature difference power generation device comprises a temperature difference power generation main module and a voltage stabilizing module, wherein the output end of the voltage stabilizing module is connected with the input end of the power supply module, and the voltage stabilizing module is arranged in the first cavity (5); the thermoelectric generation main module comprises a metal upper plate (9), a metal lower plate (11), a first asbestos heat-insulating layer (6), a second asbestos heat-insulating layer (10), a thermoelectric generation sheet (8), an upper insulating heat-conducting layer (7) and a lower insulating heat-conducting layer (12), wherein the left side of the metal upper plate (9) is fixedly connected with the right side of the top cover (4), the left side of the metal lower plate (11) is fixedly connected with the right side of the bottom cover (3), the first asbestos heat-insulating layer (6) is arranged at the left end part between the metal upper plate (9) and the metal lower plate (11), the second asbestos heat-insulating layer (10) is arranged at the right end part between the metal upper plate (9) and the metal lower plate (11), the upper insulating heat-conducting layer (7) is attached below the metal upper plate (9), the lower insulating heat-conducting layer (12) is attached above the metal lower plate (11), and a second cavity is formed between the upper insulating heat, the thermoelectric generation piece unit is arranged in the second cavity; the output end of the temperature difference power generation sheet unit is connected with the input end of the voltage stabilizing module.
2. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the thermoelectric generation piece unit comprises a plurality of groups of thermoelectric generation pieces; each group of thermoelectric generation pieces is formed by connecting a plurality of thermoelectric generation pieces (8) in series, and a plurality of groups of thermoelectric generation pieces are connected in parallel and then connected with the input end of the voltage stabilizing module.
3. The automobile remote control key based on thermoelectric power generation as claimed in claim 2, wherein: gaps are reserved among the plurality of thermoelectric generation pieces (8); the heat input end face of the thermoelectric generation piece is attached to the lower metal plate through the lower insulating heat conduction layer (12), and the heat output end face is attached to the upper metal plate (9) through the upper insulating heat conduction layer (7).
4. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the thickness of the first asbestos heat insulation layer is 2-4 mm.
5. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the thermoelectric conversion material with high thermoelectric conversion efficiency is adopted by the thermoelectric generation piece, and the operating temperature difference range is-50-70 ℃.
6. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the information conversion module is used for receiving and sending signals, receiving state information about a door, an engine, a window and a trunk of the automobile sent from the interior of the automobile, and sending door unlocking and engine unlocking instructions to the controller in the automobile.
7. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the main control module is responsible for processing key state information and power supply management, receives authentication information and state information from the automobile by the information conversion module, transmits the information to the information display module, then transmits the processed information to the information conversion module, and transmits the information to the automobile by the information conversion module for information exchange.
8. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the information display module is used for displaying vehicle state information including a vehicle door unlocking and locking state, whether a vehicle window skylight is closed or not, electric quantity and fault information.
9. The automobile remote control key based on thermoelectric power generation as claimed in claim 1, wherein: the main thermoelectric generation module is provided with a sleep mode and a working mode; the sleep mode is that the automobile remote control key is out of the remote control range of the automobile; the working mode is that the automobile remote control key is awakened to enter the working mode when being within the remote control range of the automobile and is in communication connection with the automobile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910329095.4A CN110273581B (en) | 2019-04-23 | 2019-04-23 | Automobile remote control key based on thermoelectric generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910329095.4A CN110273581B (en) | 2019-04-23 | 2019-04-23 | Automobile remote control key based on thermoelectric generation |
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| CN110273581A CN110273581A (en) | 2019-09-24 |
| CN110273581B true CN110273581B (en) | 2020-12-29 |
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| CN116488509B (en) * | 2023-04-27 | 2023-11-14 | 西安交通大学 | Special-shaped high-temperature heat pipe coupling static thermoelectric conversion integrated device |
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| CN103077562A (en) * | 2013-01-27 | 2013-05-01 | 张敬敏 | Charging remote key for automobile |
| CN107397305A (en) * | 2016-05-22 | 2017-11-28 | 李欣 | Utilize the self-sounding key chain of body temperature hair storing up electricity |
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