Rescue device for preventing high-temperature suffocation in buggy
This child suffocation prevention and rescue device, which integrates multiple sensors and controllers, enables automatic or manual opening of car windows when the temperature inside the car is too high. It solves the problem that existing technologies cannot effectively prevent children from suffocating, and provides multiple rescue methods to ensure children's safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-13
Smart Images

Figure CN223990013U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of automotive safety peripherals, and in particular to a rescue device for preventing children from suffocating due to high temperatures inside a car. Background Technology
[0002] With the economy becoming increasingly developed and people's lives becoming more affluent, many families now own cars. Television news often shows parents leaving their children in cars, with the doors automatically locking after the driver leaves or the parents locking the car themselves. Especially in summer, children are prone to suffocation from the heat in a closed car, leading to accidents.
[0003] Existing car window controls rely on power to operate the window actuator, which then moves the window up or down. Therefore, a rescue device can be connected to the input of the window actuator to control the window and prevent children from suffocating inside the car. However, depending on whether a child is in the car and the specific rescue and emergency procedures required for different children, a rescue device that meets user safety needs is needed to prevent potential safety hazards. Utility Model Content
[0004] To address the aforementioned technical problems and shortcomings—specifically, how to modify the car window actuator to prevent children from suffocating due to high temperatures inside cars—this invention provides a device for preventing children from suffocating due to high temperatures inside cars.
[0005] To achieve the above and other related objectives, the present invention adopts the following technical solution:
[0006] A child suffocation prevention device for children in car interiors due to high temperatures includes a momentary controller, a thermostat, a sound controller, a human body sensor, a counter, an alarm, a first relay, a second relay, and a power supply. The thermostat has a built-in temperature sensor that senses the ambient temperature inside the vehicle and has a preset temperature threshold. When the temperature inside the vehicle exceeds the threshold, the thermostat's temperature control switch contacts close. The power supply is connected in parallel with the coils of the counter, sound controller, thermostat, alarm, human body sensor, momentary controller, and first relay. The alarm's power circuit has a normally open switch connected in series with the second relay.
[0007] The positive and negative terminals of the power supply are connected to the window actuator through the normally open switch of the first relay;
[0008] The positive terminal of the power supply is connected to one end of the normally open switch of the counter. The other end of the normally open switch of the counter is connected to one end of the coil of the limit switch and the second relay. The other end of the second relay is connected to one end of the normally open switch of the temperature controller. The other end of the normally open switch of the temperature controller is connected to the negative terminal of the power supply.
[0009] The normally open switch of the counter is connected in parallel with the normally open switch of the electric controller and the normally open switch of the third relay. The coil of the third relay is connected in parallel with the human body sensor. The normally open switch of the voice controller is connected in parallel with the counter.
[0010] Preferably, an indicator light is connected in parallel to the power supply.
[0011] Preferably, one end of the limit switch and the coil of the second relay are connected to the window driver through the normally closed switch of the first relay.
[0012] Preferably, a fourth normally closed switch is connected in series between the normally closed switch of the first relay and the window driver. The front stage of the normally closed switch of the fourth relay is connected to the coil of the fifth relay, and the rear stage of the normally closed switch of the fourth relay is connected to the normally closed switch of the fifth relay and the coil of the fourth relay. The coil of the fourth relay is used to connect to the original window lifting control module.
[0013] Preferably, the jog controller includes a jog button, which has two colors to indicate lifting control.
[0014] In summary, the present invention provides at least one of the following beneficial technical effects:
[0015] When a child is inside the car, the human body sensor will detect it, and in conjunction with the thermostat, the temperature will be monitored. If the temperature exceeds a set threshold, the window will automatically open to prevent suffocation. The window can also be controlled by a momentary control, which is suitable for older children. Alternatively, it can be controlled by a voice controller, which is helpful for younger children who may not know how to use the momentary controller. The voice controller activates the window to rescue the child when they make a sound. To prevent accidental activation due to external noise interference, a counter can be used for control. After the counter counts to a set number, the window lift actuator will be activated. Attached Figure Description
[0016] Figure 1 This is the electrical schematic diagram of Embodiment 1 of the present invention;
[0017] Figure 2 This is the electrical schematic diagram of Embodiment 2 of the present invention.
[0018] Explanation of reference numerals for major components:
[0019] 100. Jog controller; 200. Temperature controller; 300. Sound controller; 400. Human body sensor; 500. Counter; 600. Alarm; 700. First relay; 800. Second relay; 900. Limit switch; 110. Indicator light; 120. Fifth relay; 130. Fourth relay. Detailed Implementation
[0020] The following specific examples illustrate the implementation of this invention. Those skilled in the art can easily understand other advantages and effects of this invention from the content disclosed in this specification. This invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.
[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.
[0022] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0023] Example 1:
[0024] This invention discloses a device for preventing children from suffocating in high temperatures inside cars, as described in the following embodiments. Figure 1 The components include a momentary controller 100, a temperature controller 200, a sound controller 300, a human body sensor 400, a counter 500, an alarm 600, a first relay 700, a second relay 800, and a power supply. These electronic components are all available for purchase on the market.
[0025] In a specific example, the jog controller 100 includes a jog button with two colors to indicate window raising / lowering control. The colors can be selected as red and green. Red can be used to control the window to lower, and green can control the window to raise.
[0026] The thermostat 200 has a built-in temperature sensor that senses the ambient temperature inside the vehicle and has a preset temperature threshold. When the temperature inside the vehicle exceeds the threshold, the temperature control switch contact of the thermostat 200 closes. The control part of the thermostat 200 is shown as K9 in the attached diagram, and the switch contact part is shown as K9-1. Switch contact K9-1 is a normally open switch. It remains open when the temperature is below the preset temperature threshold. We can set the temperature to 40 degrees Celsius because it is dangerous for a person to be in a confined space at 40 degrees Celsius for a long time. When the temperature exceeds 40 degrees Celsius, it will trigger switch contact K9-1 to close and connect the circuit.
[0027] The power supply connects in parallel to the coils of a counter 500, a sound controller 300, a temperature controller 200, an alarm 600, a human body sensor 400, a momentary controller 100, and a first relay 700. The power supply provides operating power to these devices. A normally open switch of a second relay 800 is connected in series in the power circuit of the alarm 600. The alarm 600 will only sound when the second relay 800 is energized, at which point the normally open switch will close. The alarm 600 can be a telephone alarm module (telephone alarm 600, telephone / SMS transmitter).
[0028] The positive and negative terminals of the power supply are connected to the window actuator via the normally open switch of the first relay 700.
[0029] The positive terminal of the power supply is connected to one end of the normally open switch of the counter 500. The other end of the normally open switch of the counter 500 is connected to one end of the coil of the limit switch 900 and the second relay 800. The other end of the second relay 800 is connected to one end of the normally open switch of the temperature controller 200. The other end of the normally open switch of the temperature controller 200 is connected to the negative terminal of the power supply.
[0030] The normally open switch of the counter 500 is connected in parallel with the normally open switch of the electric controller and the normally open switch of the third relay. The coil of the third relay is connected in parallel with the human body sensor 400. The normally open switch of the voice controller 300 is connected in parallel with the counter 500.
[0031] In one specific example, an indicator light 110 is connected in parallel to the power supply.
[0032] In one specific example, one end of the coil of the limit switch 900 and the second relay 800 is connected to the window driver through the normally closed switch of the first relay 700.
[0033] exist Figure 1 In the initial state, power is normally supplied to indicator light 110, counter 500, voice controller 300, thermostat 200, human body sensor 400, jog controller 100, and first relay 700, allowing them to operate normally simultaneously. At this time, the normally open switch K1-2 of the first relay 700 is closed, and the normally closed switch K1-1 is open. Thus, the power supply controls the raising and lowering of the window actuators via the jog controller 100. This achieves jog control via buttons, suitable for older children. In an emergency, they can be taught to press the red button for self-rescue.
[0034] The second emergency response: When the human body sensor 400 detects a child inside the vehicle, it energizes the third relay K3, closing its normally open switch K3-1. Combined with the second condition, if the thermostat 200 detects that the interior temperature exceeds a threshold, its normally open switch K9-1 closes. This energizes the normally open switch K2-1 of the second relay 800, triggering the alarm 600. This can be achieved via telephone or voice alarm. Simultaneously, with the first relay 700 energized, the window actuator receives power through switch K1-2, keeping the windows open.
[0035] The third layer of protection: If a child is unwell while left in the car, they will make noise. This is detected by the voice controller 300. To avoid interference from other external noises, a counter 500 is used to limit the triggering conditions. In a specific example, we set a count of 3. When the voice controller 300 is active, detecting one valid sound closes its normally open switch K8-1, causing the counter 500 to count once. After detecting three valid sounds, the counter 500 reaches its trigger value, closing its normally open switch K6-1, thus energizing the second relay 800. This, in turn, energizes the alarm 600, triggering an alarm. This can be implemented via telephone or voice alarm.
[0036] Limit switch 900 is normally closed and is used to sense the window's lifting range. When the window automatically (default) lowers to its lowest position in emergency mode, striking limit switch 900 de-energizes the window's motor and stops it. This design prevents the motor from overheating due to continuous power supply. Limit switch 900 uses quick-connect clips for easy connection and disconnection.
[0037] Example 2: Based on Example 1, further refer to... Figure 2 As shown, Figure 1 The normally closed switch of the first relay 700 on the rescue device is connected in series with the normally closed switch of the fourth relay 130 and the window driver. The front stage of the normally closed switch of the fourth relay 130 is connected to the coil of the fifth relay 120. The rear stage of the normally closed switch of the fourth relay 130 is connected to the normally closed switch of the fifth relay 120 and the coil of the fourth relay 130. The coil of the fourth relay 130 is used to connect to the original window lifting control module.
[0038] The fourth relay 130 and the third relay are interlocked. When the rescue device is de-energized, the first relay 700 is not powered, and its normally closed switch K1-1 remains closed. At this time, the original vehicle power supply powers the original vehicle window lift control module, energizing the fourth relay 130. The normally closed switch K4-1 of the fourth relay 130 then opens, while the normally closed switch K5-1 of the fifth relay 120 remains closed. In this state, the original vehicle window lift controller directly controls the window actuator. If the rescue device is powered, the first relay 700 is energized and operates. Figure 1 When the normally open switch K1-2 in the circuit is closed, power is supplied to the fifth relay 120 through this switch, thereby energizing the fifth relay 120. The normally closed switch K5-1 of the fifth relay 120 is opened, directly switching to the rescue device to control the operation of the window actuator.
[0039] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the scope of the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A device for preventing high temperature asphyxia in a child car, comprising a jog controller (100), a temperature controller (200), an acoustic controller (300), a human body sensor (400), a counter (500), an alarm (600), a first relay (700), a second relay (800) and a power supply, the temperature controller (200) is provided with a temperature sensor, the temperature sensor is used for sensing the temperature in the car and is provided with a temperature threshold value, when the temperature in the car exceeds the threshold value, the temperature control switch contact of the temperature controller (200) is closed, characterized in that, The power supply is connected with the coil of the first relay (700) in parallel with the counter (500), the sound controller (300), the temperature controller (200), the alarm (600), the human body sensor (400) and the jog controller (100), and the normally open switch of the second relay (800) is connected in series with the power supply loop of the alarm (600), The positive and negative poles of the power supply are connected with the window driver through the normally open switch of the first relay (700); The positive pole of the power supply is connected with one end of the normally open switch of the counter (500), the other end of the normally open switch of the counter (500) is connected with one end of the coil of the second relay (800) and the travel switch (900), the other end of the normally open switch of the temperature controller (200) is connected with the other end of the coil of the second relay (800), and the negative pole of the power supply is connected with the other end of the normally open switch of the temperature controller (200); The normally open switch of the electric controller and the normally open switch of the third relay are connected in parallel with the normally open switch of the counter (500), the coil of the third relay is connected in parallel with the human body sensor (400), and the normally open switch of the sound controller (300) is connected in parallel with the counter (500).
2. The child car high temperature asphyxia relief device according to claim 1, characterized in that, The power supply is connected in parallel with the indicator light (110).
3. The child car high temperature asphyxia relief device according to claim 1, characterized in that, The travel switch (900) and one end of the coil of the second relay (800) are connected with the window driver through the normally closed switch of the first relay (700).
4. The child car high temperature asphyxia relief device according to claim 3, characterized in that, The normally closed switch of the fourth relay (130) is further connected in series between the normally closed switch of the first relay (700) and the window driver, the coil of the fifth relay (120) is connected in front of the normally closed switch of the fourth relay (130), the normally closed switch of the fifth relay (120) and the coil of the fourth relay (130) are connected behind the normally closed switch of the fourth relay (130), and the coil of the fourth relay (130) is used for connecting the original window lifting control module.
5. The child car high temperature asphyxia relief device according to claim 1, characterized in that, The jog controller (100) comprises a jog button, and the jog button has two colors to represent lifting control.