Safety seat

Abstract

The utility model relates to the technical field of children products, and discloses a safety seat. The safety seat comprises a base; the seat main body is movably connected with the base; the supporting pad is detachably mounted and fixed on the seat main body, and a sensing unit is arranged on the supporting pad; the first detection assembly is arranged on the seat main body and is matched with the sensing unit to detect whether the supporting pad is mounted in place or not; and the driving mechanism is in communication connection with the first detection assembly and can drive the seat main body to rotate on the base. According to the safety seat, the safety seat can be automatically moved to a proper use state according to the month age condition of a seated child, so that the use convenience and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, and in particular to a car seat. Background Technology

[0002] A child safety seat is a seat specifically designed for children. It is installed in a car seat for children to ride in while traveling in a vehicle. Child safety seats can effectively improve the safety of children while traveling in a car.

[0003] Child safety seats generally consist of a base and a seat body that rotates on the base. The seat body can rotate relative to the base to have forward-facing and rear-facing positions. Because children's physical characteristics differ at different stages of development, typically, when using a younger infant, a support cushion is placed on the seat body first, and then the seat body is rotated to the rear-facing position. When using an older child, no support cushion is placed, and the seat body is rotated to the forward-facing position.

[0004] With existing car seats, users may forget to turn their young infants into a rear-facing position, which reduces the safety of the car seat. Utility Model Content

[0005] The purpose of this invention is to provide a child safety seat that can automatically adjust to the appropriate usage position based on the child's age, thereby improving convenience and safety.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Child safety seats, including:

[0008] Base;

[0009] A seat body, which is movably connected to the base;

[0010] A support pad is detachably installed and fixed to the seat body, and a sensing unit is provided on the support pad;

[0011] A first detection component is disposed on the seat body and cooperates with the sensing unit to detect whether the support pad is installed in place;

[0012] The drive mechanism is communicatively connected to the first detection component and is capable of driving the seat body to move on the base.

[0013] As an alternative, the seat body is rotatably mounted on the base along a first axis, and the drive mechanism drives the seat body to rotate around the base.

[0014] As an optional solution, the seat body has a forward-facing use state and a reverse-facing use state. In the reverse-facing use state, the support pad is installed and fixed on the seat body. In the forward-facing use state, the support pad is detached from the seat body. When switching from the forward-facing use state to the reverse-facing use state, the seat body rotates 180°.

[0015] As an optional solution, the child safety seat also includes a second detection component for detecting whether the door is open;

[0016] The drive mechanism is communicatively connected to the second detection component and can drive the seat body to rotate around the first axis to a side-facing use state. In the side-facing use state, the seat body faces the vehicle door.

[0017] As an optional solution, the first detection component includes

[0018] A first detection circuit is disposed inside the seat body, and the first detection circuit is communicatively connected to the drive mechanism.

[0019] The sensing unit includes a connector disposed on the support pad. When the support pad is installed on the seat body, the connector can enable the first detection circuit to conduct or change the current magnitude of the first detection circuit.

[0020] As an alternative, the sensing unit includes a wireless signal transmitter disposed on the support pad;

[0021] The first detection component includes a wireless signal receiver disposed on the seat body. The wireless signal receiver is communicatively connected to the drive mechanism. When the support pad is installed on the seat body, the wireless signal receiver is able to receive the signal emitted by the wireless signal transmitter.

[0022] As an alternative, the wireless signal transmitter is an NFC chip, and the wireless signal receiver is an NFC receiver.

[0023] As an alternative, the wireless signal transmitter is a magnet and the wireless signal receiver is a Hall sensor.

[0024] As an optional feature, the car seat also includes a third detection component for detecting whether a child is seated on the seat body.

[0025] As an optional feature, the detection sensitivity of the third detection component is adjustable.

[0026] As an alternative, the drive mechanism is communicatively connected to the third detection component and can drive at least a portion of the seat body to slide relative to the base.

[0027] The beneficial effects of this utility model are:

[0028] This new type of car seat, through the inclusion of a sensing unit and a first detection component, enables the car seat to detect whether a support cushion is placed on the seat body. This allows it to determine whether the child will be seated as a very young infant or a very old child (a support cushion corresponds to a very young infant, and no support cushion corresponds to a very old child). Based on this result, the drive mechanism moves the seat body to a position matching the child's age. The automatic switching of the seat body's position makes operation more convenient and prevents users from forgetting to rotate the seat body to the appropriate position. The seat body's usage state is matched to the child's age, thus ensuring the child's comfort and safety after being seated. Attached Figure Description

[0029] Figure 1 This is a structural diagram of the safety seat provided in a specific embodiment of the present invention when it is in the forward-facing use state;

[0030] Figure 2 This is a structural diagram of the safety seat provided in a specific embodiment of the present invention when it is in a rear-facing usage state;

[0031] Figure 3 This is a structural diagram of the first type of safety seat provided by this utility model when the support pad is separated from the seat body;

[0032] Figure 4 This is a schematic diagram of the structure of the second type of safety seat provided in this utility model when the support pad is separated from the seat body;

[0033] Figure 5 This is a structural diagram of the third type of safety seat provided in this utility model when the support pad is separated from the seat body;

[0034] Figure 6 This is a flowchart of the control method for the first type of safety seat provided in a specific embodiment of this utility model;

[0035] Figure 7 This is a flowchart of the control method for the second type of safety seat provided in a specific embodiment of this utility model;

[0036] Figure 8 This is a flowchart of the control method for the third type of safety seat provided in a specific embodiment of this utility model;

[0037] Figure 9This is a flowchart of the control method for the fourth type of safety seat provided in a specific embodiment of this utility model.

[0038] In the picture:

[0039] 10. Base;

[0040] 20. Seat body; 21. Connector;

[0041] 31. Connector; 33. NFC chip; 34. NFC receiver; 35. Magnet; 36. Hall sensor;

[0042] 40. Support pad. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the states or positional relationships shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific state, or be constructed and operated in a specific state. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0047] In this embodiment, the terms "controller," "processor," "central processing unit," "CPU," and "MCU" are used interchangeably. When using the unit "controller," "processor," "central processing unit," "CPU," or "MCU" to perform a specific function, unless otherwise stated, these functions can be performed by a single or multiple of the aforementioned units.

[0048] In this embodiment, the terms “calculation,” “judgment,” “control,” “determine,” “identify,” etc., refer to the operation and process of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0049] This embodiment provides a child safety seat for installation in a car seat and for a child to ride in. Figures 1-3 As shown, the child safety seat includes a base 10 and a seat body 20. The base 10 is used for mounting on a car seat, and the mounting method between the base 10 and the car seat can be any of the prior art, without departing from the inventive concept of this application. The seat body 20 is movably connected to the base 10 and can be in at least a forward-facing position (e.g., ...). Figure 1 (as shown) and reverse usage state (such as) Figure 2 Switching between (as shown). It should be noted that both forward and reverse usage states refer to the position of the seat body 20 relative to the base 10. Taking the base 10 installed on a car seat as an example, as... Figure 1 As shown, in the forward-facing mode, the seating space of the seat body 20 faces the front of the car, meaning the child faces the front of the car when seat body 20 is in use. Figure 2 As shown, in the reverse use state, the seating space of the seat body 20 faces the rear of the car, that is, the child faces the rear of the car when sitting on the seat body 20. When switching between the forward use state and the reverse use state, the seat body rotates 180°.

[0050] When the car seat is used for infants, the seat body 20 is typically adjusted to a rear-facing position for better safety. When the car seat is used for older children, the seat body 20 is typically adjusted to a forward-facing position for better comfort. In this embodiment, the seat body 20 is rotatably mounted on the base 10 along a first axis to allow switching between forward-facing and rear-facing positions. Specifically, the first axis is along a vertical direction or a direction close to the vertical. "Close to the vertical direction" means that the angle between the first axis and the vertical direction is less than a preset angle. The preset angle can be flexibly set as needed and is not specifically limited here.

[0051] like Figure 1 and Figure 3 As shown, the car seat also includes a support cushion 40, which is detachably installed and fixed to the seat body 20. When the seat body 20 is not equipped with the support cushion 40, its seating space is larger and more comfortable, making it more suitable for older children. When the seat body 20 is equipped with the support cushion 40, the overall seating space is smaller, but the support curve of the support cushion 40 is more compatible with the physiological curve of younger infants, providing better safety and making it more suitable for younger children.

[0052] Therefore, the preferred way to use a car seat is as follows: For older children, the seat body 20 is in a forward-facing position, and the support pad 40 is detached from the seat body. For younger children, the seat body 20 is in a rear-facing position, and the support pad 40 is fixedly attached to the seat body 20.

[0053] In existing car seats, users may forget to turn the infant to the rear-facing position, which reduces the safety of the car seat.

[0054] The safety seat also includes a controller, a first detection component, and a drive mechanism. A sensing unit is provided on the support pad 40. Both the first detection component and the drive mechanism are communicatively connected to the controller. The first detection component and the sensing unit work together to allow the controller to determine whether the support pad 40 is installed and fixed on the seat body 20. Based on whether the support pad 40 is installed and fixed on the seat body 20, the controller can control the drive mechanism to move the seat body 20 on the base 10. Specifically, the drive mechanism rotates the seat body 20 relative to the base 10 around a first axis to electrically switch the state of the seat body 20 relative to the base 10. It should be noted that, without departing from the inventive concept of this application, the drive mechanism can be any existing structure capable of switching the drive mechanism between a forward-facing and a reverse-facing usage state for the seat body 20.

[0055] In this embodiment, when the first detection component detects that a support pad 40 is installed on the seat body 20, it indicates that the car seat will be used for infants of a young age. At this time, the controller can control the drive mechanism to rotate the seat body 20 around the first axis to the reverse use state, ensuring the safety of the infant. When the first detection component detects that no support pad 40 is installed on the seat body 20, it indicates that the car seat will be used for older children. At this time, the controller can control the drive mechanism to rotate the seat body 20 around the first axis to the forward use state, ensuring the comfort of the older child. In this embodiment, the state switching of the seat body 20 can be completed automatically, making the operation of the car seat more convenient and avoiding situations where the user forgets to rotate the seat body 20 to the appropriate state. The use state of the seat body 20 is matched with the child's age, thereby ensuring the comfort and safety of the child after sitting down.

[0056] In some embodiments, such as Figure 3 As shown, the first detection component includes a first detection circuit and a connector 31. The first detection circuit is located within the seat body 20 and is communicatively connected to the controller, thereby indirectly achieving communication with the drive mechanism. The connector 31 is disposed on the support pad 40. When the support pad 40 is installed on the seat body 20, the connector 31 can activate or change the current of the first detection circuit, thereby changing the signal detected by the first detection circuit. This allows the controller to determine whether the support pad 40 is currently installed on the seat body 20 based on the signal change.

[0057] Specifically, the seat body 20 is provided with a socket 21. When the support pad 40 is installed on the seat body 20, the connector 31 is inserted into the socket 21. Optionally, the connector 31 is a conductive component. When the connector 31 is inserted into the socket 21, it is directly connected to the first detection circuit, thereby turning on the first detection circuit or changing the current of the first detection circuit. In some embodiments, after the connector 31 is inserted into the socket 21, it presses against the switch in the first detection circuit, thereby turning on the first detection circuit. At this time, the controller determines that the support pad 40 is installed on the seat body 20. When the connector 31 is pulled out of the socket 21, it no longer presses against the switch of the first detection circuit, and the first detection circuit is disconnected. At this time, the controller determines that the support pad 40 is not installed on the seat body 20. In this embodiment, the connector 31 does not need to be a conductive component. Furthermore, the cooperation between the connector 31 and the socket 21 can also position and limit the installation position of the support pad 40 on the seat body 20, preventing the support pad 40 from shifting during use. Optionally, the number of sockets 21 and connectors 31 can be two or more, and no specific limitation is made here.

[0058] In some embodiments, the first detection component includes a wireless signal transmitter and a wireless signal receiver. The wireless signal transmitter is disposed on the support pad 40 and can transmit wireless signals, while the wireless signal receiver is disposed on the seat body 20 and is communicatively connected to the controller, thereby indirectly achieving communicative connection with the drive mechanism. When the wireless signal receiver receives a signal transmitted by the wireless signal transmitter, the controller determines that the support pad 40 is installed on the seat body 20; when the wireless signal receiver does not detect the corresponding wireless signal, the controller determines that the support pad 40 is not currently installed on the seat body 20. By setting the first detection component as a wireless communication structure, the support pad 40 can be directly placed on the seat body 20 without additional operation, improving the convenience of installing and removing the support pad 40.

[0059] Optionally, such as Figure 4 As shown, the wireless signal transmitter is an NFC chip 33, and the wireless signal receiver is an NFC receiver 34. When the support pad 40 is placed on the seat body 20, the NFC receiver 34 recognizes the NFC chip 33 and sends a signal to the controller, so that the controller can rotate the seat body 20 to the reverse use state based on the signal. When the support pad 40 is not installed on the seat body 20, the NFC receiver 34 cannot recognize the NFC chip 33 and sends another signal to the controller, so that the controller can rotate the seat body 20 to the forward use state based on the signal.

[0060] Optionally, such as Figure 5 As shown, the wireless signal transmitter is a magnet 35, and the wireless signal receiver is a Hall sensor 36. When the support pad 40 is placed on the seat body 20, the Hall sensor 36 detects the magnet 35 and sends a signal to the controller, which then rotates the seat body 20 to a reverse-facing position based on this signal. When the support pad 40 is not installed on the seat body 20, the Hall sensor 36 does not detect the magnet 35 and sends another signal to the controller, which then rotates the seat body 20 to a forward-facing position based on this signal.

[0061] Of course, in other embodiments, the first detection component can also be other wired or wireless detection structures, as long as they can identify whether the support pad 40 is installed on the seat body 20.

[0062] When the seat body 20 is in a forward-facing or rear-facing position, it is inconvenient for the user to place the child in the seat body 20.

[0063] In response, the drive mechanism can also drive the seat body 20 to rotate around the first axis to a side-facing use state facing the car door. When a child is placed on the seat body 20, the seat body 20 first rotates to a side-facing use state facing the user, thereby improving the convenience of placing the baby. After the child is placed, the drive mechanism then rotates the seat body 20 and the child together to a forward-facing use state or a reverse-facing use state.

[0064] In some embodiments, the action of the drive mechanism to rotate the seat body 20 to the side-facing use state can be triggered by the user. For example, after the user presses the corresponding button, the drive mechanism drives the seat body 20 to rotate to the side-facing use state; when the user presses the button again, the drive mechanism drives the seat body 20 to rotate to the forward-facing or reverse-facing use state.

[0065] In some embodiments, the child safety seat further includes a second detection component, which is communicatively connected to the controller. The second detection component detects whether the vehicle door is open, and the controller can drive the seat body 20 to rotate around a first axis to a side-facing usage state facing the vehicle door based on the detection result of the second detection component. Specifically, if the second detection component detects that the vehicle door is open, the controller controls the drive mechanism to rotate the seat body 20 to the side-facing usage state. By setting the second detection component, the child safety seat can automatically rotate to the side-facing usage state without prior user intervention, further improving operational convenience.

[0066] Optionally, the second detection component includes two door opening detectors, which are positioned on the left and right sides of the seat body 20. Each detector is used to detect the opening status of the doors on the left and right sides of the child safety seat. If one detector detects a door is open, the drive mechanism rotates the seat body 20 towards the open door. If both detectors detect doors are open, the drive mechanism rotates the seat body 20 towards the door closer to the child safety seat. Optionally, the door opening detectors can be distance sensors.

[0067] Optionally, the child safety seat also includes a third detection component, which is communicatively connected to the controller. The third detection component is used to detect whether a child is seated on the seat body 20. The controller can wirelessly communicate with the user's mobile device (such as a mobile phone). When the controller receives a signal from the third detection component indicating that a child is on the seat body 20 and the mobile device is beyond a certain distance from the child safety seat, the controller can send a signal to the mobile device to issue a warning, preventing the child from being forgotten in the car. In this embodiment, the third detection component includes a capacitive sensor. In other embodiments, the third detection component may also be a pressure sensor, etc., which is not specifically limited here.

[0068] Taking the third detection component, which includes a capacitive sensor, as an example, the capacitive sensor is installed inside the seat body 20. The controller includes a second detection circuit, which can detect the capacitance value of the capacitive sensor. Since the human body has a certain conductivity and dielectric constant, when a child sits on the seat body 20, it will change the capacitance value of the capacitive sensor. The second detection circuit determines whether there is a child on the seat body 20 based on the detected different capacitance values.

[0069] Because the support pad 40 increases the distance between the child and the capacitive sensor, the capacitance change of the capacitive sensor differs when the support pad 40 is installed on the seat body 20 and when the support pad 40 is not installed, which leads to recognition errors.

[0070] In this embodiment, the detection sensitivity of the third detection component is adjustable. When the first detection component detects that a support pad 40 is installed on the seat body 20, the detection sensitivity of the third detection component is adjusted to the first sensitivity; when the third detection component detects that no support pad 40 is installed on the seat body 20, the detection sensitivity of the third detection component is adjusted to the second sensitivity, with the first sensitivity being higher than the second sensitivity. This embodiment, by adjusting the detection sensitivity of the third detection component according to whether a support pad 40 is placed on the seat body 20, can avoid misidentification and improve the user experience.

[0071] Optionally, the sensitivity of the third detection component can be adjusted by changing the recognition threshold of the second detection circuit, wherein the recognition threshold range corresponding to the first sensitivity is greater than the recognition threshold range corresponding to the second sensitivity, thereby ensuring accurate detection of a child sitting down even when the support pad 40 is installed. It is understood that, without departing from the inventive concept of this application, the sensitivity of the third detection component can be adjusted using any method found in the prior art.

[0072] In some embodiments, the seat body 20 includes a seat and an adapter. The adapter is rotatably connected to the base 10 about a first axis. The seat slides with the adapter, and when the seat slides relative to the adapter, it also slides relative to the base. Optionally, the adapter can be a boat-shaped component. When the seat slides relative to the base 10, its tilt angle relative to the base changes, and the seat body can switch between at least a sitting position and a reclining position. In the sitting position, the child remains seated after sitting down; in the reclining position, the child remains reclining after sitting down.

[0073] Preferably, the drive mechanism can drive at least a portion of the seat body 20 (i.e., the seat) to slide relative to the base 10 based on the detection results of the first and third detection components. Generally, younger infants are more comfortable in a lying position, while older children are more comfortable in a sitting position. Therefore, when the first detection component detects that a support cushion 40 is installed on the seat body 20 and the third detection component detects a child sitting in it, indicating a younger child, the controller controls the drive mechanism to first drive the seat body 20 to a reverse use position, and then rotate the seat body 20 to a lying position. When the first detection component detects that no support cushion 40 is installed on the seat body 20 and the third detection component detects a child sitting in it, indicating an older child, the controller controls the drive mechanism to first drive the seat body 20 to a forward use position, and then rotate the seat body 20 to a sitting position. It should be noted that, without departing from the inventive concept of this application, the drive mechanism can be any existing structure capable of driving the seat body 20 to rotate around a first axis while sliding relative to the adapter.

[0074] This embodiment also provides a control method for a child safety seat, which can be applied to the aforementioned child safety seat.

[0075] like Figure 6 As shown, the control methods for child safety seats include:

[0076] Determine whether a support pad 40 is installed on the seat body 20;

[0077] When the support pad 40 is installed on the seat body 20, the seat body 20 is controlled to be in a reverse use state.

[0078] The control method of the car seat in this embodiment determines the age of the child to be seated by judging whether a support pad 40 is installed on the seat body 20. When the support pad 40 is installed on the seat body 20, it means that a young child will be seated. At this time, the seat body 20 is controlled to be in the rear-facing mode to avoid the user forgetting to move the seat body 20 to the rear-facing mode, thereby ensuring the safety of the young child after sitting down.

[0079] In addition, such as Figure 6 As shown, if it is determined that no support cushion 40 is installed on the seat body 20, it means that the current or upcoming passenger is an older child or no safety seat is being used. In this case, the seat body 20 should be controlled to be in the forward-facing position.

[0080] Specifically, the method for determining whether a support pad 40 is installed on the seat body 20 is as follows: before determining whether a support pad 40 is installed on the seat body 20, the first detection result of the first detection component is obtained. If the first detection result is a preset result, it is determined that a support pad 40 is installed on the seat body 20; if the first detection result is not a preset result, it is determined that a support pad 40 is not installed on the seat body 20. It should be noted that the preset result can be set according to the specific type of the first detection component and the sensing unit.

[0081] After determining that the support pad 40 is installed on the seat body 20, whether the drive mechanism needs to drive the seat body 20 to move still needs to be determined based on the current usage status of the seat body 20.

[0082] In this regard, such as Figure 7 As shown, the steps for "controlling the seat body 20 to be in the reverse use state" include:

[0083] The current usage state of the seat body 20 is determined. If the current usage state is forward, the seat body 20 is controlled to rotate to the reverse usage state.

[0084] In addition, such as Figure 7 As shown, if the current usage state of the seat body 20 is not the forward-facing usage state, it is further determined whether the seat body 20 is currently in the reverse-facing usage state. Specifically, if the current seat body 20 is in the reverse-facing usage state, the seat body 20 is controlled to maintain the current usage state; if the current seat body 20 is in the side-facing usage state, the seat body 20 is controlled to rotate to the reverse-facing usage state.

[0085] Specifically, the current usage state of the seat body 20 can be determined by setting three position sensors, which respectively identify the forward, side and reverse usage states of the seat body 20, and the current position of the seat body 20 can be determined by obtaining the detection results of the three position sensors.

[0086] Considering that it is not convenient for users to place children on the seat body 20 when the seat body 20 is in the reverse use position.

[0087] In this regard, such as Figure 8 As shown, the step of "controlling the seat body 20 to the rear-facing state" further includes: before controlling the seat body 20 to rotate to the rear-facing state, determining whether there is a child on the seat body 20; and if there is a child on the seat body 20, then controlling the seat body 20 to rotate to the rear-facing state.

[0088] This design allows users to place a child on the seat body 20 in either a forward-facing or side-facing position. Once the child is in place, or after a child is detected on the seat body 20, the seat body 20 can be rotated to a rear-facing position, thus improving the convenience of using the car seat.

[0089] Understandably, if it is determined that there is no child on the seat body 20, there are two possibilities: the first is that the user has not yet placed the child on the seat body 20, and the second is that the safety seat is not required.

[0090] In this regard, such as Figure 8 As shown, when it is determined that there is no child on the seat body 20, a further determination is made as to whether a child safety seat is to be used. If a child safety seat is not required, the seat body 20 is kept in its current state. If a child safety seat is required, the seat body 20 is rotated to a side-facing position to improve the convenience of placing the child. It should be noted that after the seat body 20 is rotated to the side-facing position, the process returns to the step of detecting whether there is a child on the seat body 20. Once a child is detected on the seat body 20, the seat body 20 is rotated to the rear-facing position.

[0091] Specifically, determining whether a child safety seat is needed includes the following methods: 1) Obtaining information about whether a button has been triggered. The button is for user operation, and when triggered, the drive mechanism rotates the seat body 20 to a side-facing position. Therefore, a triggered button indicates that the user needs to place a child on the seat body 20. If the button is triggered, it is determined that a child safety seat needs to be used. 2) Obtaining information about whether the vehicle door is open. If the door is open, it is determined that a child safety seat needs to be used; if the door is closed, it is determined that a child safety seat does not need to be used. It can be understood that if either 1) or 2) determines that a child safety seat needs to be used, then it is considered that a child safety seat needs to be used.

[0092] The method to determine whether there is a child on the seat body 20 is as follows: obtain the third detection result of the third detection component. If the third detection result is within the preset range, it is determined that there is a child on the seat body 20. If the third detection result is not within the preset range, it is determined that there is no child on the seat body 20.

[0093] Because the support pad 40 increases the distance between the child and the capacitive sensor, the capacitance change of the capacitive sensor differs when the support pad 40 is installed on the seat body 20, leading to recognition errors. In response, as... Figure 9As shown, after determining that a support pad 40 is installed on the seat body 20, the sensitivity of detecting whether a child is on the seat body 20 is increased. Specifically, the sensitivity of detecting whether a child is on the seat body 20 is increased by increasing the detection sensitivity of the third detection component. For details on how to increase the detection sensitivity of the third detection component, please refer to the above.

[0094] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, based on the concept of this utility model, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A child safety seat, characterized in that, include: Base; A seat body, which is movably connected to the base; A support pad is detachably installed and fixed to the seat body, and a sensing unit is provided on the support pad; A first detection component is disposed on the seat body and cooperates with the sensing unit to detect whether the support pad is installed in place; The drive mechanism is communicatively connected to the first detection component and is capable of driving the seat body to move on the base.

2. The child safety seat as described in claim 1, characterized in that, The seat body is rotatably mounted on the base along the first axis, and the drive mechanism drives the seat body to rotate around the base.

3. The child safety seat as described in claim 2, characterized in that, The seat body has a forward-facing use state and a reverse-facing use state. In the reverse-facing use state, the support pad is installed and fixed on the seat body. In the forward-facing use state, the support pad is detached from the seat body. When switching from the forward-facing use state to the reverse-facing use state, the seat body rotates 180°.

4. The safety seat as described in claim 2, characterized in that, The safety seat also includes a second detection component for detecting whether the door is open; The drive mechanism is communicatively connected to the second detection component and can drive the seat body to rotate around the first axis to a side-facing use state. In the side-facing use state, the seat body faces the vehicle door.

5. The safety seat as described in claim 1, characterized in that, The first detection component includes A first detection circuit is disposed inside the seat body, and the first detection circuit is communicatively connected to the drive mechanism. The sensing unit includes a connector disposed on the support pad. When the support pad is installed on the seat body, the connector can enable the first detection circuit to conduct or change the current magnitude of the first detection circuit.

6. The child safety seat as described in claim 1, characterized in that, The sensing unit includes a wireless signal transmitter disposed on the support pad; The first detection component includes a wireless signal receiver disposed on the seat body. The wireless signal receiver is communicatively connected to the drive mechanism. When the support pad is installed on the seat body, the wireless signal receiver is able to receive the signal emitted by the wireless signal transmitter.

7. The child safety seat as described in claim 6, characterized in that, The wireless signal transmitter is an NFC chip, and the wireless signal receiver is an NFC receiver; or The wireless signal transmitter is a magnet, and the wireless signal receiver is a Hall sensor.

8. The child safety seat as described in any one of claims 1-7, characterized in that, The child safety seat also includes a third detection component for detecting whether a child is seated on the seat body.

9. The safety seat as described in claim 8, characterized in that, The detection sensitivity of the third detection component is adjustable.

10. The safety seat as described in claim 8, characterized in that, The drive mechanism is communicatively connected to the third detection component and can drive at least a portion of the seat body to slide relative to the base.

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