Intelligent lamp controller controlled through Hall sensing, and lighting system of automobile armrest box, lighting system of automobile glove box and lighting system of automobile charging port cover using same

Abstract

The utility model discloses an intelligent lamp controller controlled through Hall induction, which comprises a shell, a mainboard is arranged in the shell, and at least one light source and at least one Hall chip are integrated on the mainboard; a first pin and a second pin are arranged on the mainboard, the first pin is connected with a power line, and the second pin is connected with a ground wire. The utility model aims to provide the intelligent lamp controller which is low in cost, simple and convenient to install and high in reliability, is controlled through Hall induction, and can be applied to intelligent lighting systems of box bodies with opening and closing states, such as an automobile armrest box and a glove box. According to the controller, the Hall principle is utilized, the integrated design of a non-contact and high-sensitivity automatic lighting system is achieved, meanwhile, the installation process is simplified, and cost and power consumption are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of intelligent control of automobile lighting, and relates to Hall sensor technology, in particular to an intelligent lighting controller controlled by Hall induction, which is specifically applied in automobiles. Background Art

[0002] In modern car design, the lighting in the armrest box between the driver's seat and the co-pilot's seat, as well as the glove box in front of the co-pilot's seat, is becoming more and more popular in the car cabin, because it can bring convenience to the driver and passengers at night or in low-light environments. With the advancement of automobile intelligence, some mid-to-high-end models have begun to adopt intelligent lighting systems, but these systems are often costly and complex to install, requiring special wiring and power management, which not only increases manufacturing costs, but also increases the difficulty of maintenance.

[0003] At present, there are generally three forms of light control in the armrest box and glove box: 1. Through a mechanical contact switch, when the box door is opened, it touches the contact switch arranged nearby to control the turning on of the light; 2. The light in the cabin is sensed by the photosensitive sensor installed on the whole vehicle, which is synchronized with the backlight, that is, it shares the power supply with the backlight. When the backlight is on, the light in the glove box and armrest box also lights up synchronously; 3. An independent Hall sensor replaces the contact switch, which is also currently developed by our company. An independent light source is connected to the outside. The Hall sensor senses the opening and closing status of the box cover, and then outputs a signal to control the external light source.

[0004] Regarding the above three commonly used technical means, the applicant found that there are many shortcomings:

[0005] First of all, for mechanical contact switches, 1. Lifespan issues. Since they are contact-type, they will inevitably wear out and are prone to aging and failure as the vehicle ages. 2. The design is complex and after-sales disassembly and assembly are inconvenient. The contact switch must be arranged in certain specific positions so that the structure can ensure that the switch device of the box door can just touch it. It has to be arranged in the already narrow space in the cabin, which greatly increases the difficulty of design and affects after-sales disassembly and assembly. 3. The cost is not low. Because the contact switch has high requirements for the location, it must be at a certain distance from the light, which requires wiring harnesses and connectors to connect the two ends. This complex circuit and wiring increases material and installation costs.

[0006] Secondly, although the mode synchronized with the backlight saves the material of the contact switch and the control is completely handed over to the whole vehicle, its biggest problem is that it is very not energy-efficient. Because in dim light conditions, the whole vehicle will automatically control the backlight to turn on, thus turning on the lights of the armrest box and glove box at the same time. Normally, these two box doors are closed, and there is no need to keep the lights on. This greatly increases unnecessary power consumption and reduces the life of the lamp group.

[0007] Finally, for the mode where an independent Hall sensor replaces the contact switch and an external independent light source is connected, see Figure 4 That is, the Hall sensor and the light source are not integrated together. The light source is an external component relative to the sensor, and the two do not have a common power supply. At this time, the emitter of the transistor in the sensor can only be used as the signal output end to power the light source. There are three disadvantages: 1. The transistor turn-on voltage is 0.7 volts, which leads to a voltage drop of 0.7 volts between the collector and the emitter of the transistor. Power loss occurs between the collector and the emitter of the transistor, which reduces the voltage at both ends of the light-emitting diode LED and damages the power. The damaged electric energy is wasted on the transistor, and the power is converted from electric energy to harmful heat energy; 2. Due to the reasonable tolerance range of the transistor, the voltage drop of each transistor is slightly different, which leads to slightly different brightness of the light source, and the brightness consistency after batch production will be flawed; 3. The sensor and the light source are two independent electronic modules, which require additional connectors and wiring harnesses to connect, increasing material and installation costs. Utility Model Content

[0008] The purpose of this utility model is to solve all the defects pointed out in the background technology. This utility model aims to provide a low-cost, easy and convenient installation and high reliability intelligent lighting system controlled by Hall induction, which can be applied to the intelligent lighting system of the boxes with opening and closing states such as the car armrest box, glove box, and charging port cover. The system uses the Hall principle to realize the integrated design of the non-contact, high-sensitivity automatic lighting system, while simplifying the installation process and reducing costs and power consumption.

[0009] A smart lamp controller controlled by Hall induction includes a shell, a mainboard is arranged inside the shell, and at least one light source and at least one Hall sensor are integrated on the mainboard; a first pin and a second pin are arranged on the mainboard, the first pin is connected to a power line, and the second pin is connected to a ground line.

[0010] As a further solution of the utility model: the shell is divided into an upper shell and a lower shell, positioning holes and clamping blocks are arranged on both sides of the upper shell, and clamping grooves are arranged on both sides of the lower shell at positions corresponding to the clamping blocks.

[0011] As a further solution of the utility model: a third pin may be additionally provided on the mainboard, and the third pin serves as an output signal line.

[0012] As a further solution of the utility model: a lighting hole is opened on the shell, and the lighting hole corresponds to the position of the light source.

[0013] As a further solution of the utility model: the light source is an LED lamp, but is not limited to a single LED lamp bead, but may also be an entire LED lamp group circuit composed of electronic components such as resistors and capacitors.

[0014] As a further solution of the utility model: the controller includes a Hall chip arranged inside; the first pin of the Hall chip is connected in parallel with one end of a first current limiting resistor R1 and one end of a first capacitor C1, and the other end of the first current limiting resistor R1 is connected to a power line; the second pin of the Hall chip is connected in parallel with one end of a second current limiting resistor R2 and one end of a second capacitor C2, and the other end of the second current limiting resistor R2 is connected to a signal line; it also includes a pull-up resistor R3, one end of the pull-up resistor R3 is connected to the power line, and the other end of the pull-up resistor R3 is connected to the signal line; the other end of the first capacitor C1, the other end of the second capacitor C2 and the third pin of the Hall chip are all connected to the ground line; the other end of the second current limiting resistor R2 is connected to the first pin of a transistor Q1 or a MOS tube, and the third pin of the transistor Q1 or the MOS tube is connected to one end of a light source. No matter which transistor or MOS tube is selected as an electronic component, it is within the protection scope of this patent.

[0015] As a further solution of the utility model: the other end of the transistor Q1 and the light source is connected to the ground wire, and the second pin of the transistor Q1 or the MOS tube is connected to the power line.

[0016] As a further solution of the utility model: the other end of the light source is connected to the power line, and the second pin of the transistor Q1 or MOS tube is connected to the ground line. No matter which form of connection is used, it is within the protection scope of this patent.

[0017] As a further solution of the utility model: it also includes a protection circuit, which is set at the input end of the power supply, or at both ends of the Hall chip, or at both ends of the transistor Q1, or at both ends of the MOS tube; the protection circuit is a TVS tube. No matter which form of protection is used, it is within the protection scope of this patent.

[0018] The utility model also provides a lighting system for an automobile armrest box, comprising a door frame and a door panel, wherein any of the above-mentioned controllers is installed on the door frame, and a magnet corresponding to the controller is installed on the door panel.

[0019] The utility model also provides a lighting system for a car glove box, comprising a door frame and a door plate, wherein any of the above-mentioned controllers is installed on the door frame, and a magnet corresponding to the controller is installed on the door plate.

[0020] The utility model also provides a lighting system for a fuel tank cap of an automobile, comprising a door frame and a door plate, wherein any controller is installed on the door frame, and a magnet corresponding to the controller is installed on the door plate.

[0021] The utility model also provides a lighting system for a car charging port cover, comprising a door frame and a door panel, wherein any controller is installed on the door frame, and a magnet corresponding to the controller is installed on the door panel.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. Provide a cost-effective intelligent lighting solution to reduce manufacturing and maintenance costs;

[0024] 2. Simplify the installation process, eliminating the need for complicated wiring and power management;

[0025] 3. Improve the reliability and stability of the system, ensure accurate response in various environments, and have unlimited theoretical life; 4. The utility model is used in automobiles to automatically control the lighting system through Hall induction, especially in the application of automobile armrest boxes, glove boxes and other parts that require lighting;

[0026] 5. The Hall sensor can accurately design the position to ensure that the magnetic field changes can be accurately sensed during the opening and closing process of the armrest box;

[0027] 6. The compact design of the circuit board integrates the Hall sensing system and the lighting system on one circuit board, which combines sensing, control and lighting into one, saving costs and simplifying the installation and maintenance process;

[0028] 7. The overall design of the system synchronizes the lighting control with the mechanical movement trajectory of the door cover, improving the user experience;

[0029] 8. While controlling the light through Hall induction, it can also output high and low level signals to monitor the opening and closing status of the box, such as providing opening and closing status information for the armrest box password lock, and providing door cover opening and closing status information for the charging port cover.

[0030] 9. Compared with the existing external light source solution, the present application adopts a solution in which the Hall chip and the light source are integrated into one body. At this time, the light source is connected to the collector of the transistor. By adjusting the position of the transistor and the light source, the turn-on voltage is greater than 0.7 volts, and the voltage across the light source is always a constant input voltage, without generating losses, and the power supply efficiency is higher, and at the same time, no transistor error is introduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the utility model.

[0032] Figure 2 It is an application schematic diagram of the utility model.

[0033] Figure 3 This is a circuit diagram of an intelligent lamp controller controlled by Hall induction according to the present invention.

[0034] Figure 4 It is the existing technical solution of the utility model.

[0035] Among them, the upper shell 1; the main board 2; the light source 3; the Hall chip 4; the first pin 5; the second pin 6; the third pin 7; the lower shell 8; the card block 9; the card slot 10; the door frame 11; the positioning hole 12; the lighting hole 13; the door panel 22; the shell 33; and the magnet 44. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Embodiment 1

[0038] See also Figure 1In this embodiment, an intelligent lamp controller controlled by Hall induction is provided, including a shell, a mainboard 2 is arranged inside the shell, the mainboard can be a PCB board, at least one light source 3 and at least one Hall chip 4 are integrated on the mainboard 2, the light source can be a white LED lamp bead, or a corresponding light source can be selected according to needs, the light source can be 1 or more, and the number of light sources in this embodiment is 1, the Hall chip can be 1 or more, and the number of chips in this embodiment is 1; PIN pins are arranged on the mainboard 2, namely a first pin 5, a second pin 6 and a third pin 7, the first pin 5 is connected to a power line, the second pin 6 is connected to a ground line, and the third pin 7 is connected to an output signal line; it should be noted that it is not necessary for the third pin to be externally connected to a signal line, and whether to externally connect an output signal line can be selected according to actual conditions. In this embodiment, an external output signal line is selected.

[0039] When in use, the shell is installed on the door frame and a magnet is set on the corresponding door panel. When the door panel is closed, the magnet and the Hall chip in the shell sense the signal to control the light source to be turned off; when the door panel is opened, the Hall chip in the shell cannot sense the magnetic field, and thus outputs the opposite signal to control the light source to be turned on.

[0040] In this embodiment, the shell is divided into an upper shell 1 and a lower shell 8. Positioning holes 12 and a clamping block 9 are provided on both sides of the upper shell 1, and clamping grooves 10 are provided on both sides of the lower shell 8 and at positions corresponding to the clamping blocks 9. The clamping blocks 9 and the clamping grooves 10 are snap-connected, thereby fixing the upper shell 1 and the lower shell 8 together. The positioning hole 12 fixes the shell to the door frame through bolts. A lighting hole 13 is also provided on the shell, and the position of the lighting hole 13 corresponds to the position of the light source 2.

[0041] See also Figure 2 The shell 33 with the controller installed is installed on the door frame 11, and the magnet 44 is installed on the door panel 22; when the armrest box door panel 22 is closed, the Hall chip in the shell 33 detects the magnetic line signal, and the output end of the Hall chip outputs a high level to the transistor base, thereby controlling the LED light to turn off; when the armrest box door panel 22 is opened, the magnetic line signal disappears, and the output end of the Hall chip in the shell 33 outputs a low level to the transistor base, thereby controlling the LED light to turn on. In this way, when the driver or passenger opens or closes the armrest box, the controller plays the role of a lighting switch, realizing automatic control of the interior lighting.

[0042] Embodiment 2

[0043] This embodiment is a preferred solution of embodiment 1, see Figure 3The controller includes a Hall chip arranged inside; a first pin of the Hall chip is connected in parallel with one end of a first current limiting resistor R1 and one end of a first capacitor C1, and the other end of the first current limiting resistor R1 is connected to a power line; a second pin of the Hall chip is connected in parallel with one end of a second current limiting resistor R2 and one end of a second capacitor C2, and the other end of the second current limiting resistor R2 is connected to a signal line; a pull-up resistor R3 is also included, one end of the pull-up resistor R3 is connected to the power line, and the other end of the pull-up resistor R3 is connected to the signal line; the other end of the first capacitor C1, the other end of the second capacitor C2 and the Hall chip are all connected to the ground line; the first pin and the second pin of the Hall chip are respectively connected to one end of a TVS tube D1, the other ends of the two TVS tubes D1 are both connected to the ground line, and the two TVS tubes D1 are located between the first capacitor C1 and the second capacitor C2; the other end of the second current limiting resistor R2 is connected to the first pin of the transistor Q1, the second pin of the transistor Q1 is connected to the ground line, the third pin of the transistor Q1 is connected to one end of the light source, and the other end of the light source is connected to the power line.

[0044] In this embodiment, the transistor Q1 may also be replaced by a MOS tube.

[0045] This embodiment does not simply integrate the Hall sensor and the LED light source into one, such as the external light group solution of the prior art, such as Figure 4 , only the emitter of the triode can be used as the signal output terminal to power the LED; its disadvantages have been described above. In this embodiment, the scheme is as follows Figure 3 , connecting the LED to the collector of the transistor can effectively optimize the circuit.

[0046] When the intelligent lighting system is working, install the controller inside the armrest box or glove box, and install a magnet at the corresponding position of the closed box. When the box cover is in the closed state, the Hall chip receives the magnetic field line signal of the magnet, that is, the signal line outputs a low-level signal. When the door panel is in the open state, the Hall chip does not receive the magnetic field line signal of the magnet, that is, the signal line outputs a high-level signal, which is then turned on through the MOS tube Q1 to the negative pole of the LED lamp group to light it up.

[0047] TVS tube is a transient voltage suppression diode, which can provide protection for the circuit. Specifically, when the two ends of the TVS tube are subjected to a momentary high-energy impact (occasional transient current pulses are inevitable in the car environment), it can be used at a very high speed (up to 1*10 -12 The impedance of the device is suddenly reduced (s), while a large current is absorbed, clamping the voltage between its two ends to a predetermined value, thereby protecting other electronic components from damage caused by transient high energy shocks.

[0048] For those skilled in the art, the TVS tube D1 can be arranged at both ends of the Hall chip as protection for the Hall chip, or it can be designed to both ends of the input port power supply to protect the entire circuit. No matter which form of protection is used, it is within the scope of protection of this patent.

[0049] At the same time, all LED lamps described in this application are not limited to a single LED lamp, but also include the entire LED lamp group circuit composed of electronic components such as resistors and capacitors.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent lamp controller controlled by Hall induction, comprising a housing, characterized in that: A mainboard is arranged inside the shell, and at least one light source and at least one Hall chip are integrated on the mainboard; a first pin and a second pin are arranged on the mainboard, the first pin is connected to a power line, and the second pin is connected to a ground line.

2. The intelligent lamp controller controlled by Hall induction as claimed in claim 1, characterized in that: The shell is divided into an upper shell and a lower shell. Positioning holes and a clamping block are arranged on both sides of the upper shell. Clamping grooves are arranged on both sides of the lower shell at positions corresponding to the clamping blocks.

3. The intelligent lamp controller controlled by Hall induction as claimed in claim 1, characterized in that: A third pin may be further provided on the main board, and the third pin serves as an output signal line.

4. The intelligent lamp controller controlled by Hall induction as claimed in claim 1, characterized in that: The controller includes a Hall chip arranged inside; a first pin of the Hall chip is connected in parallel to one end of a first current limiting resistor R1 and one end of a first capacitor C1, and the other end of the first current limiting resistor R1 is connected to a power line; a second pin of the Hall chip is connected in parallel to one end of a second current limiting resistor R2 and one end of a second capacitor C2, and the other end of the second current limiting resistor R2 is connected to a signal line; it also includes a pull-up resistor R3, one end of the pull-up resistor R3 is connected to the power line, and the other end of the pull-up resistor R3 is connected to the signal line; the other end of the first capacitor C1, the other end of the second capacitor C2 and the third pin of the Hall chip are all connected to the ground line; the other end of the second current limiting resistor R2 is connected to the first pin of the transistor Q1 or the MOS tube, and the third pin of the transistor Q1 or the MOS tube is connected to one end of the light source.

5. The intelligent lamp controller controlled by Hall induction as claimed in claim 4, characterized in that: The other end of the light source is connected to the ground line, and the second pin of the transistor Q1 or the MOS tube is connected to the power line.

6. The intelligent lamp controller controlled by Hall induction as claimed in claim 4, characterized in that: The other end of the light source is connected to a power line, and the second pin of the transistor Q1 or the MOS tube is connected to a ground line.

7. The intelligent lamp controller controlled by Hall induction as claimed in claim 4, characterized in that: It also includes a protection circuit, which is arranged at the input end of the power supply, or at both ends of the Hall chip, or at both ends of the transistor Q1, or at both ends of the MOS tube; the protection circuit is a TVS tube.

8. A lighting system for an automobile armrest box, comprising a door frame and a door panel, characterized in that: The door frame is mounted with a controller as claimed in any one of claims 1 to 7, and the door panel is mounted with a magnet corresponding to the controller.

9. A lighting system for a car glove box, comprising a door frame and a door panel, characterized in that: The door frame is mounted with a controller as claimed in any one of claims 1 to 7, and the door panel is mounted with a magnet corresponding to the controller.

10. A lighting system for a car charging port cover, comprising a door frame and a door panel, characterized in that: The door frame is mounted with a controller as claimed in any one of claims 1 to 7, and the door panel is mounted with a magnet corresponding to the controller.

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