CN111550692B

CN111550692B - Portable lamp

Info

Publication number: CN111550692B
Application number: CN202010411691.XA
Authority: CN
Inventors: 李盈; 陈晓华; 黄海滨; 聂茜; 陈辉
Original assignee: Beijing Institute Fashion Technology
Current assignee: Beijing Institute Fashion Technology
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2022-08-05
Anticipated expiration: 2040-05-14
Also published as: CN111550692A

Abstract

The invention provides a portable lamp, which is mainly used for providing portable illumination when a user goes out at night, the conventional portable lamp needs to use a button or a specific mode to trigger an illumination function, the learning cost of the conventional triggering mode is higher in a dark scene, and the use is inconvenient.

Description

Portable lamp

Technical Field

The invention relates to the technical field of illumination control, in particular to a portable lamp.

Background

Little night-light is often used for providing auxiliary lighting around sleeping night as an auxiliary light source, or is used for decorating, however current little night-light is fixed in the head of a bed, lobby, corridor or post usually on, triggers the illumination function through inductor or switch to the activity of leaving the bed at night provides auxiliary lighting.

Along with the development of science light-operated little night-light of intelligence uses the light-operated little night-light of intelligence to give first place to, need not to install and directly to insert the ordinary socket in family with participating in and can use, need not the switch, little night-light automatic opening or close little night-light of light-operated little night-light of intelligence can be according to the light and shade of ambient light, little night-light self-closing when light is bright, and little night-light just can open the process that has reduced manual switch automatically when light is dark very conveniently.

However because current little night-light is fixed in the head of a bed usually, the hallway, on corridor or the post, in order to satisfy the demand that the user got off the bed at night activity, need arrange a plurality of little night-lights in a plurality of positions, and the mode that adopts the inductor triggers the illumination function and causes the mistake easily to touch, cause the waste of the energy simultaneously easily, and portable lamps and lanterns though can solve the technical problem that need arrange a plurality of little night-lights, but its mistake is touched easily equally, and because new problems such as the loaded down with trivial details of switch operation and battery life are short, user's frequency of use has significantly reduced.

Disclosure of Invention

The invention solves the problems that: how to solve prior art and need arrange a plurality of portable lamps and lanterns or portable lamps and lanterns switch complex operation and illumination function easily by the technical problem that the mistake touched.

In order to solve the above problems, the present invention provides a portable lamp, which includes a power supply receiving unit and a switching unit; the power supply receiving unit is connected with the switching unit, and the switching unit is connected with the LED unit;

the power supply receiving unit is used for charging a battery when acquiring the voltage and the current output by the adapter and providing bias voltage for the switching unit according to the acquired voltage;

the switching unit is used for conducting the connection between the LED unit and the battery when the bias voltage is not received so as to enable the LED unit to emit light; disconnecting the LED unit from the battery when the bias voltage is received.

It needs to be emphasized that, based on the use scene of the portable lamp, when the user takes off the LED unit from the adapter, the lighting function of the LED unit needs to be used immediately, and lighting is provided for the user to get off the bed in a dark scene.

Preferably, the wireless power supply device further comprises a battery protection unit and a wireless power supply sending unit, wherein the power supply receiving unit is a wireless power supply receiving unit; the wireless power supply sending unit is connected with the adapter, the positive output end of the wireless power supply receiving unit is connected with the positive input end of the battery protection unit, the positive output end of the battery protection unit is connected with the positive electrode of the battery, the negative electrode of the battery is connected with the negative output end of the battery protection unit, and the negative input end of the battery protection unit is connected with the negative output end of the wireless power supply receiving unit;

the battery protection unit is used for adjusting the charging voltage of the battery;

the wireless power supply sending unit is used for acquiring the voltage and the current output by the adapter and outputting the voltage and the current to the wireless power supply receiving unit in a wireless mode;

the wireless power supply receiving unit is used for charging the battery when acquiring the voltage and the current output by the wireless power supply sending unit, and providing the bias voltage for the switching unit according to the acquired voltage.

It is worth explaining, this application is through adopting wireless mode of charging to transmit electric power between adapter and LED unit, make this application adapter can charge for a plurality of LED units, when the user used this application portable lamps and lanterns, only need to take up an LED unit and can make this LED unit open the illumination function, if have a plurality of users when having the demand of the activity of getting off the bed at night simultaneously, only need to take up another LED unit and can make the LED unit of taking up open the illumination function, the illumination function of each LED unit is independent each other, and reduce the charge loss of battery through increasing battery protection unit, and service life is prolonged.

Preferably, the switching unit includes a resistor and a field effect transistor;

the first end of the resistor is connected with the cathode of the battery, the second end of the resistor is connected with the grid of the field effect tube and the anode of the power supply receiving unit, the source electrode of the field effect tube is connected with the anode of the battery, and the drain electrode of the field effect tube is connected with the LED unit.

Preferably, the device also comprises a distance sensing unit and a control unit;

the wireless power supply transmitting unit is also used for generating a magnetic field;

the wireless power supply receiving unit is also used for generating an eddy current signal when moving in a magnetic field;

the distance sensing unit is used for acquiring a sensing distance between the LED unit and the adapter;

the control unit is used for calculating the displacement of the wireless power supply receiving unit in a magnetic field according to the eddy current signal and obtaining a measurement distance according to the induction distance and the displacement; and is also used for adjusting the brightness of the LED unit according to the measuring distance.

Preferably, the control unit is specifically configured to:

when the measured distance is smaller than or equal to a preset distance, controlling the brightness of the LED unit to be in positive correlation with the measured distance;

and when the measured distance is greater than the preset distance, adjusting the brightness of the LED unit to the brightness when the measured distance is equal to the preset distance.

It is easy to understand that the distance between the LED unit and the adapter is measured by using the distance sensing unit, and the stimulation to a user who just takes up the LED unit and other users is reduced by adjusting the brightness of the LED unit according to the measured distance, and the influence on the wakefulness degree of the user and other users on a bed is judged according to the measured distance, so that the brightness of the LED unit is adjusted according to the measured distance, the farther the measured distance is, the higher the brightness of the LED unit is, for example, the shortest the measured distance is when just taking up the LED unit, and the brightness is adjusted to be 10% of the highest brightness; when the user walks to the door, the measured distance is equal to the preset distance, and the brightness is adjusted to 90% of the highest brightness; meanwhile, when the measured distance exceeds the preset value, the brightness is considered to meet the requirement at the moment, and therefore, the brightness is not increased continuously.

Preferably, the control unit is further configured to calculate a moving speed of the LED unit according to a difference between the measured distances in a unit time, and adjust the brightness of the LED unit according to the measured distances and the moving speed.

Preferably, the control unit is further specifically configured to:

and when the measuring distance is greater than the preset distance, controlling the brightness of the LED unit to be in positive correlation with the moving speed.

Preferably, the control unit is further configured to:

and when the change condition of the moving speed is larger than a preset change threshold value, the control unit stops adjusting the brightness of the LED unit according to the measured distance and the moving speed.

Preferably, the control unit is further specifically configured to:

when the brightness of the LED unit is stopped to be adjusted according to the measuring distance and the moving speed and the change value of the moving speed is larger than a preset change threshold value, the brightness of the LED unit is obtained;

when the brightness of the LED unit is smaller than the maximum brightness, the brightness of the LED unit is improved;

and when the brightness of the LED unit reaches the maximum brightness, adjusting the brightness of the LED unit to the minimum brightness.

It should be noted that, when the user shakes the LED unit violently, the change of the moving speed is greater than the preset change threshold, and it is determined that the user needs to actively adjust the brightness of the LED unit at this time.

The reason for adopting the scheme in the application is that the learning cost of a user is low, and meanwhile, functions such as brightness adjustment, on-off of a lighting function and the like can be realized by adding a solid key or a touch device on the LED unit.

Preferably, the portable lamp comprises an illumination housing, the power supply receiving unit is mounted on the bottom wall of the illumination housing, the switching unit, the LED unit and the battery are mounted in the illumination housing above the power supply receiving unit, and the illumination housing comprises a bottom disc, a top disc and a connecting portion for connecting the bottom disc and the top disc.

It should be noted that, when the illumination shell is charged in a wireless charging mode, a single wireless charging base can charge a plurality of illumination shells simultaneously, and the distance between the top disk and the bottom disk is greater than the thickness of the top disk or the bottom disk, so that the illumination shells with the same appearance can be alternately placed, the illumination shell structure with the structure can reduce the occupied space when the illumination shells are placed, and each illumination shell is closer to the wireless power supply sending unit as much as possible, so that the wireless charging efficiency is improved.

According to the lighting control method and device, whether the battery is charged or not and whether the LED unit emits light or not are adjusted by using the switching unit according to whether current and voltage exist at the power supply receiving unit or not, so that the lighting function of immediately turning off the connection adapter is achieved, and the battery is charged; the adapter is pulled out to immediately start the lighting function and close the battery charging effect; the steps of switching on and off the lighting function in the using process of the user are reduced, the using cost of the user is reduced, and the user experience is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic diagram of a portable lamp according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portable lighting device according to another embodiment of the present invention;

FIG. 3 is a schematic circuit diagram of a portable lighting device according to another embodiment of the present invention;

fig. 4 is a schematic structural diagram of a portable lamp according to another embodiment of the invention.

Description of reference numerals:

100-power supply receiving unit, 200-switching unit, 300-LED unit, 400-battery protection unit, BAT-battery cathode, BAT +, battery anode, R1-resistor, Q1-field effect transistor, D1-disc thickness, D2-disc distance, 500-top disc, 600-connecting part, 700-bottom disc.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

Furthermore, the following description, if any, of "first," "second," etc. is used for descriptive purposes only and not for purposes of indicating or implying relative importance or implicitly indicating the number of technical features indicated. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, an embodiment of the present invention provides a portable lamp, which includes a power supply receiving unit 100 and a switching unit 200; the power supply receiving unit 100 is connected to the switching unit 200, and the switching unit 200 is connected to the LED unit 300;

the power supply receiving unit 100 is configured to charge a battery when acquiring the voltage and the current output by the adapter, and provide a bias voltage for the switching unit 200 according to the acquired voltage;

the switching unit 200 is configured to, when the bias voltage is not received, turn on the connection between the LED unit 300 and the battery, so that the LED unit 300 emits light; when the bias voltage is received, the LED unit 300 is disconnected from the battery.

It is easy to understand that portable lamps and lanterns mainly used play the effect of illumination when the user gets off the bed activity under dim scene at night, and the user is when using portable lamps and lanterns, generally need break off LED unit 300 and the connection of adapter, and hand-carry is in order to realize providing the function of illumination with the user, and this embodiment is through the charging connection state who obtains LED unit 300, judges whether the user needs to use portable lamps and lanterns, has improved the accuracy of judgement.

It should be noted that, when the portable lamp is being charged, it is determined that the portable lamp is not picked up by the user, and at this time, the user does not need the lighting function, so that the function is in the off state, and the LED unit 300 enters the charging state.

It is easily understood that the LED unit 300 has a rechargeable battery mounted inside, because the brightness of the small night light is usually low in order to prevent strong light stimulation to the user and prevent the too strong light from disturbing other people, the rechargeable battery mounted inside does not need large capacity, and the requirement of the user for getting out of bed at night can be met.

It should be emphasized that, based on the usage scenario of the portable light fixture, when the user takes off the LED unit 300 from the adapter, the lighting function of the LED unit 300 needs to be used immediately to provide lighting for the user getting out of bed in a dim scenario, so that the lighting function is started immediately after the user gets out of the charging state, and is turned off immediately after the user gets into the charging state, no additional switch operation is needed, the usage cost is reduced, and the false touch condition caused by using the sensor is reduced.

In the embodiment, the power supply receiving unit 100 is connected with the adapter, the voltage and the current are acquired from the adapter to charge the battery, the voltage is received to provide the bias voltage for the switching unit 200, the switching unit 200 disconnects the battery from the LED unit 300 according to the bias voltage sent by the power supply receiving unit 100, the illumination function is turned off, after the adapter is separated from the power supply receiving unit 100, the battery stops charging, the power supply receiving unit 100 does not provide the bias voltage for the switching unit 200, the LED unit 300 is connected with the battery, the illumination function is turned on, the user can control the illumination function by controlling the on-off of the adapter only, when the power supply receiving unit 100 is connected with the adapter in a wireless charging mode, the technical effects of lighting when the power supply receiving unit 100 is taken up and turning off when the power supply receiving unit is put down can be realized, the operation steps of the user are reduced, and the problem that a plurality of small night lights or a portable lamp are required to be arranged in the prior art or the problem that the operation of the switch of the small night light is complicated and the portable lamp is solved by using the movable small night light The lighting function is easy to be touched by mistake.

Referring to fig. 2, optionally, the wireless power supply system further includes a battery protection unit 400 and a wireless power supply transmitting unit, where the power supply receiving unit 100 is the wireless power supply receiving unit 100; the wireless power supply sending unit is connected with the adapter, the positive output end of the wireless power supply receiving unit 100 is connected with the positive input end of the battery protection unit 400, the positive output end of the battery protection unit 400 is connected with the battery positive electrode BAT +, the battery negative electrode BAT-is connected with the negative output end of the battery protection unit 400, and the negative input end of the battery protection unit 400 is connected with the negative output end of the wireless power supply receiving unit 100;

the battery protection unit 400 is used for adjusting the charging voltage of the battery;

the wireless power supply transmitting unit is configured to obtain the voltage and the current output by the adapter, and output the voltage and the current to the wireless power supply receiving unit 100 in a wireless manner;

the wireless power supply receiving unit 100 is configured to charge the battery when acquiring the voltage and the current output by the wireless power supply transmitting unit, and provide the bias voltage for the switching unit 200 according to the acquired voltage.

It is worth mentioning that, this application is through adopting wireless mode of charging to transmit electric power between adapter and LED unit 300, make this application adapter can charge for a plurality of LED units 300, when the user used this application portable lamps and lanterns, only need to pick up one LED unit 300 and can make this LED unit 300 open the illumination function, if there are a plurality of users to have the demand of the activity of getting out of bed at night simultaneously, only need to pick up another LED unit 300 and can make the LED unit 300 of picking up open the illumination function, the illumination function of each LED unit 300 is independent each other, and reduce the charge loss of battery through increasing battery protection unit 400, improve life.

It should be noted that, in the present application, the TP4056 chip is used to provide protection for the battery, and the TP4056 chip can adjust the received voltage to 4.2V to charge the battery, so that the charging loss of the battery is reduced, and the service life of the battery is prolonged.

In the embodiment, by adding the battery protection unit 400, the charging voltage of the battery is reduced, the battery is prevented from being overheated in the charging process, the phenomenon of battery overcharge is reduced, the charging loss of the battery is reduced, the service life of the battery is prolonged, and the portable lamp can work for a longer time after being separated from the adapter; still make the user need not plug wire and pull out the line in the use through using wireless charging, pick up lamps and lanterns and can open the illumination function, put down lamps and lanterns and can close the illumination function and charge, reduced user's operating procedure, promoted user experience.

Referring to fig. 3, optionally, the switching unit 200 includes a resistor R1 and a field effect transistor Q1;

the first end of the resistor R1 is connected with the battery cathode BAT-, the second end of the resistor R1 is connected with the grid of the field-effect tube Q1 and the anode of the power supply receiving unit 100, the source of the field-effect tube Q1 is connected with the battery anode BAT +, and the drain of the field-effect tube Q1 is connected with the LED unit 300.

It is easy to understand that when the power receiving unit 100 is not connected to the adapter, the bias voltage is not received, the positive electrode of the power receiving unit 100 is in the low level state, the gate of the fet Q1 is also in the low level state, and the source of the fet Q1 is connected to the battery positive electrode BAT +, that is, the source of the fet Q1 is in the high level state, the fet Q1 is turned on, the battery supplies power to the LED unit 300, the LED unit 300 emits light, the portable lamp turns on the lighting function, when the power receiving unit 100 is connected to the adapter, the bias voltage is received, the positive electrode of the power receiving unit 100 and the gate of the fet Q1 are in the high level state, the source of the fet Q1 is in the high level state, the fet Q1 is turned off, the battery positive electrode BAT + is disconnected from the positive electrode of the LED unit 300, and the portable lamp turns off the lighting function.

In the embodiment, the switching unit 200 is formed by using the resistor R1 and the field-effect transistor Q1, so that the technical effects that the portable lamp is turned on when the portable lamp is disconnected from the adapter and turned off when the portable lamp is connected to the adapter are achieved, the operation steps of a user are reduced, and the technical scheme is perfected.

Optionally, the portable lamp further comprises a distance sensing unit and a control unit;

the wireless power supply receiving unit 100 is further configured to generate an eddy current signal when moving in a magnetic field;

the distance sensing unit is configured to obtain a sensing distance between the LED unit 300 and the adapter;

the control unit is configured to calculate a displacement of the wireless power supply receiving unit 100 in a magnetic field according to the eddy current signal, and obtain a measurement distance according to the induction distance and the displacement; and also for adjusting the brightness of the LED unit 300 according to the measured distance.

It is worth emphasizing that in the present embodiment, the displacement of the wireless power supply receiving unit 100 is measured by using the coil in the wireless power supply transmitting unit and the coil in the wireless power supply receiving unit 100, firstly, the wireless power supply transmitting unit generates a magnetic field, when the coil in the wireless power supply receiving unit 100 moves in the magnetic field, eddy current signals are generated in the coil due to the electromagnetic induction principle, the control unit receives the eddy current signals and calculates the displacement of the wireless power supply receiving unit 100 in the magnetic field, then, the distance sensor measures the induction distance between the LED unit 300 and the adapter, and the measured distance is obtained by combining the calculated displacement; by measuring the distance, it can be judged whether the user has left the bedside after picking up the LED unit 300, and the measured distance can be used as a reference value of the distance moved by the user after leaving the bedside.

It is easy to understand that, the existing wireless charging coil is used for measuring displacement, so that the measuring precision of the distance sensor when the measuring distance is short is improved, the problem that in the prior art, the measuring precision of the distance sensor is not enough when the measuring distance is short is solved, and the accuracy of LED brightness control is improved. And can be implemented by means of an arduino open source platform.

It should be noted that, when the user just takes up the LED unit 300, it is determined that the user just leaves the sleep state and there may be other people in the bed, so as to avoid stimulation to the user and reduce influence on other people, the brightness of the LED unit 300 is slightly different from the brightness in other cases.

Specifically, the control unit is specifically configured to:

when the measured distance is less than or equal to a preset distance, controlling the brightness of the LED unit 300 to have a positive correlation with the measured distance;

when the measured distance is greater than the preset distance, the brightness of the LED unit 300 is adjusted to the brightness when the measured distance is equal to the preset distance.

It is worth emphasizing that the distance between the LED unit 300 and the adapter is measured by using the distance sensing unit, and the stimulation to the user who just takes up the LED unit 300 and other users is reduced by adjusting the brightness of the LED unit 300 according to the measured distance, and the influence on the wakefulness degree of the user and other users on the bed is judged according to the measured distance, so that the brightness of the LED unit 300 is adjusted according to the measured distance, the farther the measured distance is, the higher the brightness of the LED unit 300 is, for example, the shortest the measured distance is when the LED unit 300 is just taken up, and the brightness is adjusted to be 10% at the moment; when the user walks to the door, the measured distance is equal to the preset distance, and the brightness is adjusted to be 90% at the moment; meanwhile, when the measured distance exceeds the preset value, the brightness is considered to meet the requirement at the moment, and therefore, the brightness is not increased continuously.

It is easy to understand that when the measurement distance is small, it is judged that the user has just left the sleep state and there is another person in the bed, in order to avoid stimulation to the user, and at the same time, in order to reduce influence on the other person, the brightness is low, and as the measurement distance becomes larger, it is judged that the user is gradually awake and gradually gets away from the other person in the bed, and at the same time, as the measurement distance becomes larger, the brightness of the LED unit 300 is gradually increased.

It is worth noting that when the measured distance exceeds the preset value, the user is fully awake and will not interfere with others in the bed, but the brightness will already be able to meet the lighting requirements under normal conditions, and therefore the brightness will not be increased further.

The embodiment achieves the effect of accurately measuring the distance between the LED unit 300 and the adapter by using the wireless charging coil to assist the distance sensor, and accordingly, the brightness of the LED unit 300 is automatically adjusted, the stimulation to a user and other people on a bed when the user just takes up the LED unit 300 is avoided, meanwhile, the brightness of the LED unit 300 is gradually improved in the process that the user is gradually awake and gradually keeps away from the bedside, reliable lighting conditions are provided for the user in the movement process, the user can complete the automatic adjustment of the brightness without executing any operation, and the user operation is reduced.

Specifically, the control unit is further configured to calculate a moving speed of the LED unit 300 according to the difference between the measured distances in a unit time, and adjust the brightness of the LED unit 300 according to the measured distances and the moving speed.

It should be noted that, when each user is moving at night, the moving speed is different, and the illumination condition required when moving at low speed is different from that required when moving at high speed, and in general, a better illumination condition is required when moving at high speed, and when the user can only obtain information that can be obtained under a poor illumination condition when moving at low speed, the moving speed is obtained by dividing the difference of the measured distance by the unit time, for example, the unit time is 1 second, the measured distances before and after the unit time are 3 meters and 3.8 meters respectively, and the difference of the measured distances is 0.8 meter, and the moving speed is 0.8 meter per second.

It is easy to understand that adjusting the brightness of the LED unit 300 according to the moving speed can satisfy different requirements of the user for brightness in two states of high-speed moving and low-speed moving, and adjusting the brightness of the LED unit 300 according to the measured distance can reduce the interference of the high-speed moving of the LED unit 300 when the user takes up the LED unit 300 and gets up from the bed to judge the moving speed of the user.

Specifically, the control unit is further specifically configured to:

when the measured distance is greater than the preset distance, controlling the brightness of the LED unit 300 to be in positive correlation with the moving speed.

It is worth emphasizing that, when the measured distance is greater than the preset distance, it is judged that the current brightness change does not cause irritation to other people in the bed and the user using the LED unit 300, and thus the function of adjusting the brightness of the LED unit 300 according to the moving speed is activated, and in order to meet the lighting requirement in the case of fast moving, the present embodiment sets the brightness of the LED unit 300 to be positively correlated with the moving speed, for example, when the user is walking slowly, the brightness of the LED unit 300 is reduced to 70% of the maximum brightness, when the user is walking normally, the brightness of the LED unit 300 is increased to 90% of the maximum brightness, and when the user is running, the brightness of the LED unit 300 is increased to the maximum brightness.

According to the embodiment, the brightness of the LED unit 300 is actively adjusted by calculating the moving speed of the user, different brightness requirements of the user without the moving speed are met, the operation of actively adjusting the brightness of the user is reduced, the function is started when the function is set to be larger than the preset distance, stimulation of brightness adjustment on the user is reduced, interference on other people in bed is reduced, and user experience is improved.

Preferably, the control unit is further configured to:

when the change condition of the moving speed is greater than a preset change threshold, the control unit stops adjusting the brightness of the LED unit 300 according to the measured distance and the moving speed.

It is easy to understand that there is an upper limit value in the human movement acceleration, and when the movement variation situation is greater than the upper limit value, the collected movement speed variation situation is not the real movement speed of the user, but the user shakes the LED unit 300, and according to a lot of studies, when the work situation of holding the object is not satisfied, shaking the object becomes the subconscious operation of a large number of people, the shaking LED unit 300 is used as a switch for triggering the manual brightness adjustment mode, which meets the psychological expectation of the user, and reduces the learning cost of the user.

Specifically, the control unit is further specifically configured to:

when the brightness of the LED unit 300 is stopped to be adjusted according to the measured distance and the moving speed and the change value of the moving speed is larger than a preset change threshold value, the brightness of the LED unit 300 is obtained;

when the brightness of the LED unit 300 is less than the maximum brightness, increasing the brightness of the LED unit 300;

when the brightness of the LED unit 300 reaches the maximum brightness, the brightness of the LED unit 300 is adjusted to the minimum brightness.

It is worth emphasizing that the working condition that the LED unit 300 is not satisfied by the user in the normal condition is mostly due to insufficient brightness, so that the embodiment improves the brightness of the LED unit 300 as the first trigger action, reduces the operation times of most users, and improves the use efficiency.

It is easy to understand that, in some cases, the user needs to turn down the brightness, and the present embodiment adjusts the brightness in a cyclic manner, so that the user can adjust the brightness of the LED unit 300 by performing only one operation, for example, when the current brightness is 90% of the maximum brightness, the user shakes the lamp and then stops adjusting the brightness of the LED unit 300 according to the measured distance and the moving speed, and when the user shakes the lamp again, the brightness is adjusted to the maximum brightness, the user shakes the lamp again to adjust the brightness to the minimum brightness, the user shakes the lamp again to adjust the brightness to 30% of the maximum brightness, then according to the shaking times of the user, the brightness of the lamp is at the lowest brightness, 30% of the maximum brightness, 50% of the maximum brightness, 70% of the maximum brightness, 90% of the maximum brightness and the maximum brightness, and then the lowest brightness, the circular adjustment is realized, the learning cost of the user is reduced, and the use experience of the user is improved.

It should be noted that, when the user shakes the LED unit 300 violently, the change of the moving speed is greater than the preset change threshold, and it is determined that the user needs to actively adjust the brightness of the LED unit 300 at this time, the present application adopts a method of increasing the brightness from the existing brightness, and adjusting the brightness to the lowest brightness when the brightness reaches the highest brightness, so that the user can adjust the brightness of the LED unit 300 to any gear position under the condition of single operation, and at the same time, when the brightness of the LED unit 300 reaches the maximum brightness, the user needs to shake the LED unit 300 twice to adjust the brightness of the LED unit 300 to the lowest value, thereby reminding the user that the LED unit 300 has reached the maximum brightness.

It should be emphasized that there are many ways to adjust the brightness by shaking the LED unit 300, and other ways can be replaced by software updating, and the reason for adopting this scheme in the present application is that the learning cost of the user is low, and the functions of brightness adjustment, on-off of the lighting function, etc. can be realized by adding a physical key or a touch device to the LED unit 300.

In this embodiment, by setting the moving speed change threshold, the method enters the mode of manually adjusting the brightness when the moving speed change exceeds the threshold, and the function of manually adjusting the brightness is realized without adding a switch or other sensors, so that the technical scheme is improved, the shaking LED unit 300 is used as a switch for triggering manual brightness adjustment and a button for manually adjusting the brightness, the habit of the user is met, the learning cost of the user is reduced, and the user experience is improved.

Preferably, the portable lamp includes a lighting housing, the power supply receiving unit 100 is mounted on a bottom wall of the lighting housing, the switching unit 200, the LED unit 300 and the battery are mounted in the lighting housing above the power supply receiving unit 100, and the lighting housing includes a bottom disc 700, a top disc 500 and a connecting portion 600 connecting the bottom disc 700 and the top disc 500.

It is easily understood that, in this embodiment, the power supply receiving unit 100 is a wireless power supply receiving unit, and is installed on the bottom wall of the lighting housing, so that the distance between the wireless power supply receiving unit 100 and the adapter is reduced, the wireless charging efficiency is improved, and the technical effects of faster charging and stronger energy-saving effect are achieved.

It should be noted that, when the wireless charging mode is used to charge the lighting housing, a single wireless charging base can charge a plurality of lighting housings at the same time, the design of the disc and the connecting part 600 is adopted in the application, so that a plurality of lighting shells can be mutually inserted and placed, for example, in the present embodiment, referring to fig. 4, the thickness of the top disk 500 is equal to the thickness of the bottom disk 700, both equal to the disk thickness D1, the top disc 500 and the bottom disc 700 are connected by a connecting part 600, the connecting part 600 of the present embodiment is a cylinder, the top disc 500 and the bottom disc 700 are discs with the same size and shape, and the diameter of the cylinder is less than the diameter of the disk, the distance D2 between the top disk 500 and the bottom disk 700 is greater than the disk thickness D1, so that the same shape of the lighting housing can put the top disk 500 or the bottom disk 700 between the top disk 500 and the bottom disk 700 of the lighting housing.

It is easily understood that, the space that occupies when this application used the illumination casing of above-mentioned structure to reduce placing of a plurality of illumination casings, and make every illumination casing all more be close wireless power supply sending unit in order to improve the efficiency of wireless charging as far as, and the user is in the use, when picking up a plurality of illumination casings simultaneously, comparatively inseparable that a plurality of illumination casings combine, a plurality of illumination casings also can improve illumination brightness simultaneously, promote this application technical scheme's suitable scene.

This embodiment lets a plurality of illumination casings alternate each other and places through improving product structural design for can hold more illumination casing in the less wireless charging base, and every illumination casing bottom surface is nearer with the distance of wireless charging base, has reduced the loss of wireless charging, has improved the charge efficiency of wireless charging, has reduced the electric quantity consumption, has promoted user experience.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A portable lamp is characterized by comprising a power supply receiving unit and a switching unit; the power supply receiving unit is connected with the switching unit, and the switching unit is connected with the LED unit;

the switching unit is used for conducting the connection between the LED unit and the battery when the bias voltage is not received so as to enable the LED unit to emit light; disconnecting the LED unit from the battery when the bias voltage is received;

the switching unit comprises a resistor and a field effect tube;

2. The portable lamp according to claim 1, further comprising a battery protection unit and a wireless power supply transmitting unit, wherein the power supply receiving unit is a wireless power supply receiving unit; the wireless power supply sending unit is connected with the adapter, the positive output end of the wireless power supply receiving unit is connected with the positive input end of the battery protection unit, the positive output end of the battery protection unit is connected with the positive electrode of the battery, the negative electrode of the battery is connected with the negative output end of the battery protection unit, and the negative input end of the battery protection unit is connected with the negative output end of the wireless power supply receiving unit;

the wireless power supply receiving unit is used for charging the battery when acquiring the voltage and the current output by the wireless power supply transmitting unit, and providing the bias voltage for the switching unit according to the acquired voltage.

3. The portable lamp of claim 2, further comprising a distance sensing unit and a control unit;

the wireless power supply receiving unit is further used for generating an eddy current signal when moving in the magnetic field;

the control unit is used for calculating the displacement of the wireless power supply receiving unit in the magnetic field according to the eddy current signal and obtaining a measurement distance according to the induction distance and the displacement; and is also used for adjusting the brightness of the LED unit according to the measuring distance.

4. The portable lamp according to claim 3, wherein the control unit is specifically configured to:

5. The portable light fixture of claim 4,

the control unit is also used for calculating the moving speed of the LED unit according to the difference value of the measured distance in unit time, and adjusting the brightness of the LED unit according to the measured distance and the moving speed.

6. The portable lighting fixture of claim 5, wherein the control unit is further specifically configured to:

7. The portable light fixture of claim 5 wherein the control unit is further configured to:

8. The portable lighting fixture of claim 7, wherein the control unit is further specifically configured to:

9. The portable light fixture of claim 1 including a light housing, said power receiving unit being mounted to a bottom wall of said light housing, said switching unit, said LED unit and said battery being mounted within said light housing above said power receiving unit, said light housing including a bottom disk, a top disk and a connecting portion connecting said bottom disk and said top disk.