WO2020011271A1

WO2020011271A1 - Child safety seat and illumination control method thereof

Info

Publication number: WO2020011271A1
Application number: PCT/CN2019/095915
Authority: WO
Inventors: 曹文勇; 程飞
Original assignee: 宁波宝贝第一母婴用品有限公司
Priority date: 2018-07-13
Filing date: 2019-07-14
Publication date: 2020-01-16
Also published as: CN108770131A

Abstract

Disclosed are a child safety seat and illumination control method thereof, the child safety seat comprising: a system control board, and an ambient light intensity detection device, a seating detection device, and an illumination device separately communicatively connected to the system control board; the ambient light intensity detection device is capable of detecting the illumination intensity of the current environment and transmitting to the system control board a control signal containing the detection result; the system control board starts processing the control signal after receiving an operation instruction, representing a human body entering the seat, from an occupant detection device, and switches the switch state of the illumination device according to the control signal, and, if the current illumination intensity is higher than a preset threshold, turns off the illumination device; if the current illumination intensity is lower than the preset threshold, then it turns on the illumination device to perform illumination. The child safety seat provided by the present invention can automatically switch the handover state of the illumination device according to the intensity of the ambient light; energy is saved and the duration of effective illumination is extended, while also bringing convenience of use to younger children.

Description

Child safety seat and lighting control method thereof

Technical field

The invention relates to the field of child safety seats, and more particularly to a child safety seat and a lighting control method thereof.

Background technique

Car child safety seat is a kind of seat specially designed for children of different ages, installed in the car, which can effectively improve the safety of children. During the ride, children are restrained in the seat by the seat belt attached to the safety seat, and usually perform activities such as reading books. In order to meet the needs of children to read books and other activities in a car with low light, existing child safety seats are usually equipped with lighting equipment for lighting.

The existing lighting equipment installed on a child safety seat usually includes a lighting device, a power supply device, and a control switch. The control switch is electrically connected to the lighting device. The user can control whether the power provided by the power supply device can be transmitted to the lighting device through the switching of the control switch, thereby controlling whether the lighting device emits light or not.

However, there are still some defects in the use of such child safety seats with lighting functions. On the one hand, the control switch must be operated manually, and the lighting device will keep light once it is turned on. If the user does not turn off the control switch manually, it will keep emitting light even in good light. Safety seats usually use dry batteries to power the lighting device, so this control method is extremely uneconomical for the use of power; on the other hand, younger children do not have strong behavioral processing capabilities and may not be able to switch control by themselves The switching state of the switch causes inconvenience to children.

Summary of the invention

An object of the present invention is to provide a child safety seat and a lighting control method thereof, which can automatically switch the on / off state of a lighting device according to the intensity of ambient light, save electricity, extend the length of effective lighting, and at the same time be a young Children bring convenience in use.

Another object of the present invention is to provide a child safety seat and a lighting control method thereof, so that a user can control a switch state of a lighting device on the child safety seat in a wireless remote control manner, which is convenient for a user to operate.

To achieve the above object, the present invention provides a child safety seat, including:

Seat body

A headrest mechanism and a base connected to the seat body;

A system control board, a lighting device communicatively connected to the system control board, wherein the system control board is adapted to receive a control signal and switch a switching state of the lighting device according to the control signal.

According to a preferred embodiment of the present invention, the child safety seat further includes an ambient light intensity detection device communicatively connected with the system control board. The ambient light intensity detection device can detect the light intensity of the current environment and send a The control signal of the detection result is sent to the system control board, and the system control board compares the current light intensity with a preset threshold value according to the control signal and switches the switching state of the lighting device according to the comparison result. If the intensity is higher than a preset threshold, the lighting device is turned off; if the current light intensity is lower than the preset threshold, the lighting device is turned on for lighting.

According to another preferred embodiment of the present invention, the child safety seat further comprises a mobile terminal communicatively connected to the system control board, the mobile terminal is adapted to send the control signal to the system control board so that a user The switch state of the lighting device can be controlled by wireless remote control, which is convenient for user operation.

According to a preferred embodiment of the present invention, the child safety seat further includes a seating detection device, the seating detection device is communicatively connected to the system control board, and the seating detection device is installed on the seat body for: Detect whether a child is seated, and in a normal state, the seat detection device is in a disconnected state; when the seat detection device detects a child seat, the seat detection device sends a work instruction to the system control board to control the seat The system control board starts processing the control signal.

Preferably, the seating detection device is a pressure sensor.

According to a preferred embodiment of the present invention, the headrest mechanism has an accommodation space, and the system control board is installed in the accommodation space.

According to a preferred embodiment of the present invention, the headrest mechanism includes a headrest main body and a headrest rear cover, wherein the headrest rear cover is detachably mounted on the headrest main body to form the accommodation. space.

According to a preferred embodiment of the present invention, the headrest body includes two headrest side wings, and the lower ends of the two headrest side wings are respectively provided with the ambient light intensity detection device and the lighting device.

Preferably, the lower end of the side pillow of the headrest has an inclined angle so that the light emitted by the lighting device can be irradiated to the vicinity of the thigh knee of the child along the inclined angle.

According to a preferred embodiment of the present invention, the child safety seat further includes a power supply device, the power supply device includes a first power supply unit and a second power supply unit, and the first power supply unit is installed in the accommodation space. To power the system control board, the lighting device, and the ambient light intensity detection device, the base has a battery compartment, and the second power supply unit is installed in the battery compartment to detect the seating Device powered.

Preferably, the back cover of the headrest includes a detachable battery cover, which is convenient for a user to replace the battery.

According to a preferred embodiment of the present invention, the child safety seat further includes at least one connection terminal, and the connection terminal is respectively connected to the system control board, the lighting device, the ambient light intensity detection device, and the The seating detection device is electrically connected, and the connection terminal is adapted to be connected to an external power source to supply power to the electric device of the child safety seat by the external power source.

According to another aspect of the present invention, the present invention further provides a lighting control method for a child safety seat, which includes the following steps:

(S1) detecting the light intensity of the current environment and generating a control signal;

(S2) The switching state of the lighting device is switched according to the control signal.

According to a preferred embodiment of the present invention, the step (S1) further includes a step before: (S0) detecting whether the child is seated:

If it is detected that the child has completed seating, the step (S1) is performed;

If it is not detected that the child has completed seating, the step (S1) is not performed.

According to a preferred embodiment of the present invention, in the step (S2), the current light intensity is compared with a preset threshold:

If the current light intensity is higher than a preset threshold, turning off the lighting device;

If the current light intensity is lower than a preset threshold, the lighting device is turned on for lighting.

Compared with the prior art, the present invention has the beneficial effect of detecting whether the child is seated by the seat detection device, and then detecting whether the light intensity of the current environment meets the conditions for turning on the lighting device by the ambient light intensity detection device. The system control board automatically controls the switching state of the lighting device according to the detection result of the ambient light intensity detection device. The present invention saves unnecessary power consumption through such a design, and at the same time brings a younger child Easy to use.

The above and other objects, features, and advantages of the present invention will be further clarified by the following detailed description, drawings, and appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is an exploded schematic view of a child safety seat according to a first preferred embodiment of the present invention;

2 is a front view of a child safety seat according to a first preferred embodiment of the present invention;

3 is a side view of a child safety seat according to a first preferred embodiment of the present invention;

4 is a partial enlarged view of a lighting device and an ambient light intensity detection device according to a first preferred embodiment of the present invention;

5 is a schematic flowchart of a lighting control method according to a first preferred embodiment of the present invention;

6 is another schematic flowchart of a lighting control method according to a first preferred embodiment of the present invention;

7 is a schematic configuration diagram according to a second preferred embodiment of the present invention;

In the figure: seat body 10; headrest mechanism 20; accommodation space 21; headrest body 22; headrest wings 221; headrest rear cover 23; battery cover 231; base 30; battery compartment 31; terminal 32; Power supply device 40; first power supply unit 41; second power supply unit 42; system control board 50; ambient light intensity detection device 60; lighting device 70; seating detection device 80; system control board 50A; mobile terminal 60A; lighting device 70A; Seat detection device 80A.

detailed description

In the following, the invention will be further described with reference to the drawings and specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below or technical features can be arbitrarily combined to form new embodiments. .

The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are merely examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "horizontal", "up", "down", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, which are merely for the convenience of describing the present invention. And simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, so the above terms should not be construed as limiting the invention.

It can be understood that the term “a” should be understood as “at least one” or “one or more”, that is, in one embodiment, the number of one element can be one, and in other embodiments, The number may be plural, and the term “a” cannot be understood as a limitation on the number.

Referring to FIGS. 1 to 6 of the accompanying drawings, a child safety seat according to a first preferred embodiment of the present invention will be explained in the following description. The child safety seat can automatically switch lights according to the intensity of ambient light. The on and off state saves electricity and prolongs the duration of effective lighting, while bringing convenience to younger children.

As shown in FIG. 1, the child safety seat includes a seat body 10, a headrest mechanism 20, a base 30, a system control board 50, a power supply device 40, an ambient light intensity detection device 60, a lighting device 70, and a seat detection.装置 80。 Device 80. The headrest mechanism 20 and the base 30 are respectively connected to the seat body 10. The ambient light intensity detection device 60, the lighting device 70, and the seating detection device 80 are communicatively connected to the system control board 50, respectively. The power supply device 40 provides power for the normal operation of the system control board 50, the ambient light intensity detection device 60, the lighting device 70, and the seating detection device 80. The system control board 50 is adapted to receive a control signal and switch a switching state of the lighting device 70 according to the control signal.

Specifically, the ambient light intensity detection device 60 is capable of detecting the current light intensity of the environment and sending a control signal containing the detection result to the system control board 50. The system control board 50 compares the current light intensity with the A threshold is set for comparison, and a switch state of the lighting device 70 is switched according to the comparison result. If the current light intensity is higher than a preset threshold, the lighting device 70 is turned off; if the current light intensity is lower than the preset threshold, the lighting device 70 is turned on for lighting.

Those skilled in the art can easily understand that the ambient light intensity detection device 60 may, but is not limited to, realize the detection of the current ambient light intensity based on photosensitive components such as a photoresistor, a photodiode, and a phototransistor.

Further, the seating detection device 80 is mounted on the seat body 10 and is used to detect whether a child is seated. In a normal state, the seating detection device 80 is in an off state. When the seating detection device 80 detects a child's seating, the seating detection device 80 sends a work instruction to the system control board 50 to control the system. The control board 50 initiates processing of the control signals.

Those skilled in the art can easily understand that the seating detection device 80 may use a variety of different devices. For example, the seating detection device 80 may be, but is not limited to, a pressure sensor, an infrared switch, a human body induction switch, and a microwave. Switch, or any other device with the function of confirming that the human body is seated in the child safety seat.

Preferably, the seating detection device 80 in this embodiment is a pressure sensor. As shown in FIG. 2 and FIG. 3, the pressure sensor is installed on the seat cushion of the seat body 10. In a normal state, the pressure sensor is in an off state; when the pressure sensor detects a pressure, That is, when a child sits on the seat cushion of the seat body 10, the pressure sensor is activated and sends a work instruction to the system control board 50 representing that the child is seated, and the system control board 50 receives the work After the instruction, processing of the control signal from the ambient light intensity detection device 60 is started.

That is, the system control board 50 analyzes the control signal of the ambient light intensity detection device 60 only after the child is seated, and automatically switches the on / off state of the lighting device 70 according to the analysis result to avoid It is noted that the lighting device 70 wastes electricity generated when lighting is performed when no one is seated.

Those skilled in the art can easily understand that the communication methods between the system control board 50 and the ambient light intensity detection device 60, the lighting device 70, and the seating detection device 80 may be wireless communication, It may also be wired communication through electrical wires, or any other communication system that enables the system control board 50 to communicate with the ambient light intensity detection device 60, the lighting device 70, and the seating detection device 80, respectively. the way. For example, the ambient light intensity detection device 60, the lighting device 70, and the occupancy detection device 80 may be, but are not limited to, wireless communication methods such as Bluetooth, NFC, WiFi, LoRa, and NB-IoT. Communication between the control boards 50.

With the above design, the system control board 50 automatically switches the on / off state of the lighting device 70 according to the control signal of the ambient light intensity detection device 60, and automatically determines whether the current environment's light intensity is sufficient to light the lighting. The conditions of the device 70, on the one hand, eliminate the tediousness and inconvenience of manual operation, and bring convenience to children with weak behavioral processing ability; on the other hand, it avoids the situation of better light and unattended seating. The waste of electrical energy generated by lighting still saves the electrical energy of the power supply device 40 and effectively extends the effective lighting time.

More specifically, the headrest mechanism 20 includes a headrest main body 22 and a headrest rear cover 23. The headrest rear cover 23 is detachably mounted on the headrest main body 22 and forms an accommodation. Space 21. Preferably, the system control board 50 is installed in the accommodation space 21. However, those skilled in the art can easily understand that the installation position of the system control board 50 is not limited in the child safety seat of the present invention.

Further, the headrest body 22 includes two headrest side wings 221, and the lower ends of the two headrest side wings 221 are respectively provided with the ambient light intensity detection device 60 and the lighting device 70. Referring to FIG. 4 of the accompanying drawings, the lighting device 70 is disposed on the ambient light intensity detection device 60. Those skilled in the art can easily understand that the lighting device 70 may be any device having a lighting function. In this embodiment, the lighting device 70 is preferably implemented as an LED lamp. In this embodiment, the number of the ambient light intensity detection devices 60 is two.

Those skilled in the art can easily understand that the number of the ambient light intensity detection devices 60 is not limited in the child safety seat of the present invention, for example, the child safety shown in FIG. 1 to FIG. 3 In the specific example of the seat, the number of the ambient light intensity detection devices 60 is two to illustrate and disclose the content and characteristics of the child safety seat of the present invention, but the ambient light intensity detection devices 60 The number of two is not to be considered as a limitation on the content and scope of the child safety seat of the present invention. Optionally, in other possible examples of the child safety seat of the present invention, the number of the ambient light intensity detection devices 60 may also be, but is not limited to, implemented as 1, 3, 4, 5, or the like.

Preferably, the lower end of the headrest side wings 221 has an inclined angle so that the light emitted by the lighting device 70 can be irradiated to the vicinity of the thigh and knee of the child along the inclined angle.

With continued reference to FIGS. 1 to 3 of the accompanying drawings, the power supply device 40 includes a first power supply unit 41 and a second power supply unit 42, wherein the first power supply unit 41 is installed in the accommodation space 21 for the purpose of The system control board 50, the lighting device 70, and the ambient light intensity detection device 60 are powered. The headrest rear cover plate 23 limits the first power supply unit 41 in the accommodating space 21.

The first power supply unit 41 is a common component for power supply, and may be, but not limited to, an alkaline battery, a rechargeable battery, and the like. Preferably, the headrest rear cover 23 includes a detachable battery cover 231, which is convenient for a user to replace the battery.

The base 30 has a battery compartment 31, and the second power supply unit 42 is installed in the battery compartment 31 and supplies power to the seating detection device 80. The second power supply unit 42 is a common component for power supply, and may be, but not limited to, an alkaline battery, a rechargeable battery, and the like.

Further, the child safety seat includes a connection terminal 32, and the connection terminal 32 is disposed on a side of the base 30. The connection terminal 32 is electrically connected to the seating detection device 80. The connection terminal 32 can be electrically connected to an external power source. For example, the connection terminal 32 can be electrically connected to a vehicle-mounted power supply, so that the vehicle-mounted power supply can supply electrical energy to the seating detection device 80 through the connection terminal 32. Those skilled in the art can easily understand that the installation position of the connection terminal 32 is not limited in the child safety seat of the present invention.

Those skilled in the art can easily understand that, in other possible implementation manners, the connection terminal 32 may be electrically connected to the system control board 50, the ambient light intensity detection device 60, and the lighting device 70, respectively. In order to supply electric power to the system control board 50, the ambient light intensity detection device 60, and the lighting device 70 through the connection terminals 32 through an external power source.

As shown in FIG. 5, the present invention further provides a lighting control method for a child safety seat, which includes the following steps:

Preferably, before step (S1), the method further includes the step: (S0) detecting whether the child is seated:

As shown in FIG. 6, it shows the specific processing flow of the step (S2). Specifically, in the step (S2), the current light intensity is compared with a preset threshold:

As shown in FIG. 7, it shows a configuration diagram according to a second preferred embodiment of the present invention. In this embodiment, the child safety seat includes a system control board 50A, a seat detection device 80A, a lighting device 70A, and a mobile terminal 60A that are communicatively connected to the system control board, respectively. The system control board 50A is adapted to receive a control signal and switch a switching state of the lighting device 70A according to the control signal.

This embodiment is based on the first preferred embodiment described above. The difference from the first preferred embodiment described above is that the control signal received by the system control board 50A in this embodiment comes from the mobile terminal 60A. The mobile terminal 60A is adapted to send a control signal to the system control board 50A to control the switch of the lighting device 70A. The system control board 50A switches the lighting state of the lighting device 70A according to the control signal. If the control signal is an on signal, the lighting device 70A is turned on for lighting. If the control signal is a off signal, then The lighting device 70A is turned off.

Those skilled in the art can easily understand that the mobile terminal 60A may be a software client pre-installed on a portable electronic device of a user, or may be a remote control device paired with the system control board 50A.

It is worth mentioning that the communication method between the mobile terminal 60A and the system control board 50A may be any method for implementing communication between the mobile terminal 60A and the system control board 50A. For example, the mobile terminal 60A may be, but is not limited to, wireless communication methods such as Bluetooth, Hot Point, NFC, WiFi, LoRa, NB-IoT, GSM, 3G mobile communication network, 4G mobile communication network, and 5G mobile communication network. Realize communication with the system control board 50A. Alternatively, the mobile terminal 60A may communicate with the system control board 50A through a preset custom communication data protocol.

The control of the mobile terminal 60A enables the user to control the on / off state of the lighting device 70A on the child safety seat in a wireless remote control manner, which is convenient for the user to operate. Generally speaking, a child safety seat is installed in the rear seat of a car. Even if the user sits in the front seat of the car or other place away from the child safety seat, it can be remotely controlled wirelessly through the mobile terminal 60A. The on / off state of the lighting device 70A can particularly highlight the convenience of wireless remote control in a car with a small space.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and the accompanying drawings are merely examples and do not limit the present invention. The object of the invention has been completely and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principle.

Claims

A child safety seat, comprising:

System control board

A lighting device communicatively connected to the system control board, wherein the system control board is adapted to receive a control signal and switch a switching state of the lighting device according to the control signal.
The child safety seat according to claim 1, further comprising an ambient light intensity detection device communicatively connected to the system control board, wherein the ambient light intensity detection device detects the light intensity of the current environment and sends a The control signal of the detection result is sent to the system control board.
The child safety seat according to claim 2, further comprising a mobile terminal communicatively connected to the system control board, the mobile terminal being adapted to send the control signal to the system control board.
The child safety seat according to any one of claims 1-3, further comprising a seat detection device communicatively connected to the system control board, the seat detection device is used to detect whether a child is seated, when After the seating detection device detects that the child is seated, the seating detection device sends a work instruction to the system control board to control the system control board to start processing the control signal.
The child safety seat according to claim 4, wherein the seating detection device is a pressure sensor.
The child safety seat according to any one of claims 1-3, further comprising a headrest, and the lighting device is disposed at a lower end of the headrest.
The child safety seat according to claim 4, further comprising a power supply device, wherein the power supply device is the system control board, the lighting device, the ambient light intensity detection device, and the seating detection Device powered.
The child safety seat according to claim 7, wherein the power supply device is a battery.
The child safety seat according to claim 7, further comprising at least one connection terminal, the connection terminal being respectively connected to the system control board, the lighting device, the ambient light intensity detection device, and The seating detection device is electrically connected, and the connection terminal is suitable for connecting an external power source.
A lighting control method for a child safety seat, comprising the following steps:

(S1) detecting the light intensity of the current environment and generating a control signal;

(S2) The switching state of the lighting device is switched according to the control signal.
The lighting control method for a child safety seat according to claim 10, wherein before the step (S1), further comprising the step of: (S0) detecting whether the child is seated:

If it is detected that the child has completed seating, the step (S1) is performed;

If it is not detected that the child has completed seating, the step (S1) is not performed.
The lighting control method for a child safety seat according to claim 10 or 11, wherein in the step (S2), the current light intensity is compared with a preset threshold:

If the current light intensity is higher than a preset threshold, turning off the lighting device;

If the current light intensity is lower than a preset threshold, the lighting device is turned on for lighting.