Seat belt release device, system and vehicle

Abstract

The present application relates to the technical field of automobile seat safety, and provides a seat belt release device, system, and automobile. The seat belt release device includes: a device body having a cavity with two opposing openings; a release mechanism fixedly disposed in the cavity near one of the openings, for detaching from the device body according to an external trigger signal; a locking mechanism disposed in the cavity and having at least two ends abutting against the release mechanism and the other opening in turn, for lockingly connecting with an insert inserted into the other opening from the outside. When the release mechanism detaches from the device body, the locking mechanism disconnects from the insert, allowing the insert to detach from the device body from the opening. The present application achieves the effect of quickly unlocking the seat belt in an emergency scenario, ensuring that passengers can quickly detach from the vehicle, reducing the risk of secondary injuries to passengers in the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seat safety, and in particular to a seat belt release device, system and automobile. Background Art

[0002] With the development of the automobile industry and the popularization of transportation, automobile safety has become a focus of people's attention. As an important device in the automobile safety system, seat belts can effectively restrain passengers in the event of a car collision, preventing passengers from having a secondary collision inside the vehicle, thereby reducing passenger casualties. However, in actual use, seat belts also have some problems. For example, after detecting a collision signal, the existing seat belt system restrains passengers by controlling the locking mechanism of the seat belt buckle. However, in some unexpected scenarios, the seat belt buckle may get stuck, making it impossible for the passenger to get out. At this time, if the passenger needs to leave the vehicle as soon as possible, this may cause the passenger to be trapped in the vehicle, putting the passenger in danger and increasing the risk of casualties.

[0003] Therefore, in order to avoid the situation where passengers cannot evacuate from the car in time because the seat belts cannot be unfastened after a car collision, it is necessary to make further improvements to the seat belts. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a seat belt release device, system, and automobile to solve the problem in the prior art that the seat belt system cannot be unlocked in some unexpected scenarios, resulting in low safety.

[0005] According to a first aspect of an embodiment of the present application, a seat belt release device is provided, comprising: a device body having a cavity with two opposite openings; a release mechanism fixedly arranged in the cavity near one of the openings, for detaching from the device body according to an external trigger signal; a locking mechanism arranged in the cavity and having at least two ends abutting against the release mechanism and the other opening in turn, for locking and connecting with an insert inserted into the other opening from the outside, wherein when the release mechanism detaches from the device body, the locking mechanism is disconnected from the insert, allowing the insert to detach from the device body from the opening.

[0006] According to a second aspect of an embodiment of the present application, a seat belt release system is provided, which includes a seat sensor, a collision sensor, a controller, and a seat belt release device. The seat sensor and the collision sensor are respectively connected to the controller, and the controller is connected to the seat belt release device. When the controller receives valid detection signals sent by the seat sensor and the collision sensor, the controller controls the locking mechanism in the seat belt release device to disconnect from the insert. The valid detection signal includes a signal indicating that a person is sitting detected by the seat sensor and a collision signal detected by the collision sensor.

[0007] A third aspect of the embodiments of the present application provides a car, comprising the above-mentioned seat belt release system.

[0008] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: the above-mentioned seat belt release device is through the device body, the device body has a cavity, and two opposite openings are provided on the cavity, and a release mechanism and a locking mechanism are provided in the cavity of the device body, and the release mechanism is fixedly arranged at a position close to one of the openings, and is used to detach from the device body according to an external trigger signal, and the locking mechanism has at least two ends that successively abut against the release mechanism and the other opening, and is used to be locked and connected with an insert inserted into the other opening from the outside, and when the release mechanism detaches from the device body, the locking mechanism is disconnected from the insert, so that the insert detaches from the device body from the opening, thereby achieving the effect of unlocking the seat belt, thereby ensuring that the passenger can quickly detach from the vehicle, and reducing the risk of secondary injury to the passenger in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0010] Figure 1 is a schematic cross-sectional view of a seat belt release device provided in an embodiment of the present application;

[0011] Figure 2 is a state change diagram of the release process of the seat belt release device provided by an embodiment of the present application;

[0012] Figure 3 This is a schematic diagram of the architecture of a seat belt release system provided in an embodiment of the present application;

[0013] Figure 4 This is a logical flow diagram of the controller determining the vehicle state provided by an embodiment of the present application;

[0014] Figure 5 It is a schematic diagram of the structure of the controller provided in an embodiment of the present application.

[0015] Explanation of the accompanying drawings: 1. Seat belt release device; 11. Device body; 12. Release mechanism; 121. Fuse box; 122. First spring; 123. Bolt; 13. Locking mechanism; 131. Slider; 132. Second spring; 133. Joint; 134. Limit block; 14. Insert; 2. Seat sensor; 3. Collision sensor; 4. Controller. DETAILED DESCRIPTION

[0016] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0017] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0018] In existing technology, seatbelt systems primarily consist of a seatbelt, a seatbelt buckle, and the vehicle's electronic control system. When a vehicle crashes, the electronic control system detects the collision and controls the seatbelt buckle's locking mechanism, locking it and thus restraining the passenger. However, this technology presents a significant problem: in certain circumstances, the seatbelt buckle may become stuck, preventing the passenger from escaping in time.

[0019] In view of the above-mentioned problems, some embodiments of the present application provide a seat belt release device 1, comprising a device body 11, a release mechanism 12, and a locking mechanism 13. The device body 11 is provided with a cavity therein and has two opposing openings. The release mechanism 12 is fixed near one of the openings and is configured to detach from the device body 11 in response to an external signal. The locking mechanism 13 is configured to lock an insert 134 inserted into the other opening and disconnect from the insert 134 after the release mechanism 12 detaches. In practical applications, the seat belt release device 1 can be connected to a seat belt. In the event of a severe vehicle collision, a signal is sent to the seat belt release device 1 to control the release mechanism 12 to detach from the device body 11, allowing the insert 134 to detach from the device body 11 through the opening, thereby automatically unlocking the seat belt. This ensures that passengers can quickly exit the vehicle, reducing the risk of passengers being trapped in the vehicle and suffering secondary injuries.

[0020] See Figure 1 and Figure 2In a first embodiment of the present application, a seat belt release device 1 is provided, which includes at least a device body 11. The device body 11 has a cavity with two opposite openings. A release mechanism 12 and a locking mechanism 13 are provided in the cavity of the device body 11. The release mechanism 12 is fixedly arranged near one of the openings (for example, Figure 1 The position of the opening above the cavity is used to detach the device body 11 according to an external trigger signal, and at least two ends of the locking mechanism 13 are respectively against the release mechanism 12 and another opening (for example Figure 1 The locking mechanism 13 is located at an opening below the cavity and is used to be locked and connected with an insert 134 inserted into another opening from the outside. When the release mechanism 12 is separated from the device body 11, the locking mechanism 13 is disconnected from the insert 134.

[0021] The working principle of the seat belt release device 1 provided in the embodiment of the present application is that: in the cavity of the device body 11, the two ends of the locking mechanism 13 abut against the release mechanism 12 and the other opening to maintain a fixed state in the cavity, and are locked and connected with the insert 134 inserted in the other opening, so that the insert 134 is connected to the device body 11. When the seat belt needs to be released, a signal is sent to the release mechanism 12 to trigger the release mechanism 12 to separate from the device body. In this way, the locking mechanism 13 will lose support at the end abutting against the release mechanism 12, and the locking mechanism 13 will change from a fixed state to an active state in the cavity, and then the locking mechanism 13 will be disconnected from the insert 134. Therefore, the effect of automatically releasing the seat belt can be achieved by connecting the seat belt release device 1 to the seat belt.

[0022] The embodiment of the present application uses a device body 11, which has a cavity with two opposite openings. A release mechanism 12 and a locking mechanism 13 are provided in the cavity of the device body 11. The release mechanism 12 is fixedly arranged at a position close to one of the openings, and is used to detach from the device body 11 according to an external trigger signal. The locking mechanism 13 has at least two ends that successively abut against the release mechanism 12 and the other opening, and is used to be locked and connected with an insert 134 inserted into the other opening from the outside. When the release mechanism 12 detaches from the device body 11, the locking mechanism 13 is disconnected from the insert 134, so that the insert 134 detaches from the device body 11 from the opening, thereby achieving the effect of unlocking the seat belt, thereby ensuring that the passenger can quickly detach from the vehicle, and reducing the risk of secondary injury to the passenger in the vehicle.

[0023] The release mechanism 12 is fixedly arranged in a position near one of the openings in the cavity. On the one hand, it is used to provide a support position for the abutment of one end of the locking mechanism 13. On the other hand, it is used to be triggered by a signal to separate from the device body 11, so that one end of the locking mechanism 13 loses support, breaking the state in which both ends of the locking mechanism 13 are abutted in the cavity, and forcing the locking mechanism to be disconnected from the insert 134 inserted from the outside in the other opening.

[0024] In practical applications, the specific implementation of the release mechanism 12 is not unique.

[0025] In some optional embodiments, the release mechanism 12 includes a fuse box 121 and a first spring 122. The fuse box 121 is fixedly connected to one of the openings of the cavity. The first spring 122 is in a compressed state, and one end of the first spring 122 abuts against the fuse box 121, and the other end of the first spring 122 abuts against the locking mechanism 13. When the fuse box 121 melts, the first spring 122 is in a released state and detaches from the device body 11.

[0026] In practice, the structure of fuse box 121 includes, but is not limited to, a housing, a fuse assembly, and a signal trigger circuit. The shape of the housing of fuse box 121 is adapted to the opening, or the housing of fuse box 121 is provided with a connecting structure or device that matches the opening, for securing the fuse in the opening. The fuse assembly can be made of a metal with a moderate melting point, for example, a tin-lead alloy fuse. Both ends of the fuse are connected to the signal trigger circuit via wires. The signal trigger circuit is connected to an external control device to control the melting of the fuse. The trigger circuit includes a heating element (such as a resistor) for heating the fuse after receiving an external signal.

[0027] In addition, the first spring 122 may be a compression spring. The first spring 122 is disposed between the fuse box 121 and the locking mechanism 13 and is in a compressed state, providing disengagement force for the fuse box 121. Specifically, the fuse box 121 is fixed to the opening via the fuse and the outer shell structure of the fuse box 121. The first spring 122 is in a compressed state. When an external control device (e.g., a controller) sends a signal, the signal triggers the circuit to activate the heating element, which heats the fuse to its melting point, causing the fuse to break. After the fuse breaks, the first spring 122 releases its elastic force, pushing the fuse box 121 out of the opening of the device body 11, causing it to disengage from the opening, thereby achieving the effect of the release mechanism disengaging from the device body 11.

[0028] In the embodiment of the present application, the melting of the fuse box 121 triggers the release of the first spring 122 from the compressed state, and the elastic force of the first spring 122 is used to separate the fuse box 121 and the first spring 122 itself from the device body 11. This not only quickly and reliably realizes the function of separating the release mechanism 12 from the device body 11, but also causes the locking mechanism 13 to lose support at one end of the release mechanism 12, thereby forcing the locking mechanism 13 to disconnect from the insert 134, thereby achieving the effect of releasing the seat belt.

[0029] In some optional embodiments, the release mechanism 12 also includes a bolt 123, which includes a screw head and a screw rod. The screw rod is vertically connected to the screw head, and the screw head is provided with a thread and at least one through hole. One of the openings of the cavity is provided with a thread matching the screw head. The bolt 123 is fastened to one of the openings by matching the screw head with the thread of the opening. The screw rod is inserted into the cavity, and a fuse box 121 is fixed on the outward end of each through hole. The fuse box 121 corresponds to a first spring 122, and one end of the first spring 122 is inserted into the inward end of the through hole and abuts against the fuse box 121.

[0030] The bolt 123 here is the same in shape as the ordinary bolt 123, with a screw head and a screw rod, but the difference is that: the screw head in this embodiment is provided with a thread, while the screw rod is not provided with a thread, the screw head is used to be fixed on the opening through a threaded connection, and the screw rod is used to extend into the cavity, corresponding to the locking mechanism 13; in addition, at least one through hole is provided on the screw head, and the through hole passes through the screw head along the length direction of the screw rod. Optionally, each through hole ring is provided around the screw rod.

[0031] In actual application, the fuse box 121 is fixed to the opening of the outward end of the through hole (i.e., the end away from the cavity), and the first spring 122 is inserted into the opening of the inward end of the through hole, so that one end of the first spring 122 abuts against the fuse box 121, and the other end abuts against the locking mechanism 13, and the first spring 122 is in a compressed state. When the fuse box 121 melts due to the signal triggering, the elastic force of the first spring 122 bounces the fuse box 121 away from the bolt 123, thereby causing the locking mechanism 13 to lose support and forcing the locking mechanism 13 to be disconnected from the insert 134.

[0032] The embodiment of the present application adds a bolt 123 as a fixing basis for the release mechanism 12 in the unprecedented open position, and the screw rod of the bolt 123 extends into the cavity to increase the reliability of the abutment between the locking mechanism 13 and the first spring 122, avoiding the locking mechanism 13 and the first spring 122 from slipping due to factors such as spring shaking, thereby increasing the stability of the abutment between the locking mechanism 13 and the release mechanism 12.

[0033] The locking mechanism 13 is maintained in a fixed state in the cavity by abutting the release mechanism 12 and another opening position of the cavity at both ends, and is locked and connected with the insert 134 inserted into the other opening of the cavity. When the release mechanism 12 is disengaged from the opening due to a signal trigger, the locking mechanism 13 will lose the abutment support of the release mechanism 12. At this time, the locking mechanism 13 will change from a fixed state to an active state, thereby unlocking the connection with the insert 134, that is, disconnecting from the insert 134, so as to achieve the effect that the insert 134 can be separated from the device body 11.

[0034] In practical applications, the specific implementation of the locking mechanism 13 is not unique.

[0035] In some optional embodiments, when the release mechanism 12 includes a fuse box 121 and a first spring 122, the locking mechanism 13 includes a slider 131, a second spring 132 and a coupling 133, one axial end of the slider 131 abuts against the other end of the first spring 122, the other axial end of the slider 131 is provided with a first groove, the outer periphery of the first groove is provided with a flange, the second spring 132 is sleeved on the outer periphery of the first groove, and one end of the second spring 132 abuts against the flange, and the other end of the second spring 132 abuts against the position of another opening of the cavity (specifically on the inner wall of the cavity where the opening is located) flush with the notch of the first groove, the coupling 133 is arranged in the first groove and has at least two states of engagement and separation. When the coupling 133 is in the engaged state, the coupling 133 is locked and connected to the insert 134, and when the coupling 133 is in the separated state, the coupling 133 is disconnected from the insert 134.

[0036] Here, the second spring 132 may also preferably be a compression spring, and when the release mechanism 12 is not separated from the device body 11, one end of the slider 131 abuts against the other end of the first spring 122, and the other end of the slider 131 abuts against the other opening of the cavity, and the second spring 132 sleeved on the slider 131 is also in a compressed state. Under the elastic force of the second spring 132, the slider 131 and the first spring 122 will be further tightened. At this time, the locking mechanism 13 is in a relatively fixed state in the cavity; the notch of the first groove on the slider 131 is aligned with the other opening of the cavity, and the coupling 133 in the first groove maintains a locking connection with the insert 134 inserted from the outside into the other opening of the cavity, and the coupling 133 is in a combined state. When the release mechanism 12 is separated from the device body 11, for example, the fuse box 121 melts, the first spring 122 is separated from the device body 11, and the locking mechanism 13 loses its supporting point. At this time, the locking mechanism 13 becomes movable in the cavity. Under the elastic force of the second spring 132, the slider 131 will move toward the side of the release mechanism 12, and the slider 131 will separate from the coupling 133. The coupling 133 is in a separated state, thereby disconnecting the coupling 133 from the insert 134.

[0037] The embodiment of the present application includes a slider 131 and a second spring 132 through the locking mechanism 13, one axial end of the slider 131 abuts against the other end of the first spring 122, the other axial end of the slider 131 is provided with a first groove and a coupling member 133, the outer periphery of the first groove is provided with a flange, the second spring 132 is sleeved on the outer periphery of the first groove, and one end of the second spring 132 abuts against the flange, the other end of the second spring 132 abuts against the notch of the first groove at the position of the other opening of the cavity flush, the coupling member 133 is provided in the first groove and has at least There are two states: engaged and disengaged. When the coupling 133 is in the engaged state, the coupling 133 is locked and connected to the insert 134. When the coupling 133 is in the disengaged state, the coupling 133 is disconnected from the insert 134, thereby realizing the locking mechanism 13 being locked and connected to the insert 134 when the release mechanism 12 is not separated from the device body 11, and being disconnected from the insert 134 when the release mechanism 12 is separated from the device body 11, thereby ensuring the stability and operating efficiency of the device in different operating states.

[0038] In some optional embodiments, a support column is provided at the bottom of the first groove. When the two halves of the engaging member 133 are in a combined state, the two halves of the engaging member 133 respectively rest against the support column.

[0039] In some optional embodiments, the coupling 133 is divided into two halves, and a plurality of second grooves are provided on the outer periphery of the coupling 133 along the extension and contraction direction of the second spring 132 (or the elastic force direction of the second compression spring), and a limit block 134 is provided between the outer periphery of the coupling 133 and the inner wall of the first groove. When the limit block 134 is located between the outer periphery of the coupling 133 and the inner wall of the first groove, the limit block 134 contacts the outer periphery of the coupling 133 and the inner wall of the first groove respectively, and the two halves of the coupling 133 are in a combined state; when the limit block 134 is located in the second groove, the two halves of the coupling 133 are in a separated state.

[0040] The stopper 134 is located between the outer periphery of the coupling member 133 and the inner wall of the first groove. Due to frictional contact between the stopper 134 and the outer periphery of the coupling member 133 and the inner wall of the first groove, the slider 131, the stopper 134, and the coupling member 133 maintain a relatively fixed and stable state in the radial direction. The two halves of the coupling member 133 remain engaged within the first groove and locked with the insert 134. When the release mechanism 12 is detached from the device body 11, the slider 131 loses support against the release mechanism 12. Under the elastic force of the second spring 132, the slider 131 begins to move toward the release mechanism 12, thereby driving the stopper 134 to move relative to the coupling member 133 until the stopper 134 slides into the second groove. At this point, the slider 131 and the coupling member 133 lose support from the stopper 134 and are separated, causing the two halves of the coupling member 133 to separate, thereby disconnecting the coupling member 133 from the insert 134. In this embodiment, the limiting block 134 may preferably be a steel ball or a spherical ball.

[0041] The embodiment of the present application is divided into two halves by the coupling 133, and a plurality of second grooves are provided on the outer periphery of the coupling 133 along the extension and contraction direction of the second spring 132 (or the elastic force direction of the second compression spring), and a limit block 134 is provided between the outer periphery of the coupling 133 and the inner wall of the first groove. When the limit block 134 is located between the outer periphery of the coupling 133 and the inner wall of the first groove, the limit block 134 contacts the outer periphery of the coupling 133 and the inner wall of the first groove respectively, and the two halves of the coupling 133 are in a combined state; when the limit block 134 is located in the second groove, the two halves of the coupling 133 are in a separated state, so as to realize the rapid switching of locking and disconnection between the locking mechanism 13 and the insert 134, thereby ensuring that in an emergency, the insert 134 can be separated from the device body 11, thereby ensuring that the seat belt release device 1 effectively releases the seat belt.

[0042] In some optional embodiments, a support column is provided at the bottom of the first groove. When the two halves of the engaging member 133 are in a combined state, the two halves of the engaging member 133 respectively rest against the support column.

[0043] The cross-section of the support column is an inverted T-shaped column. When engaged, the two halves of the engaging member 133 close together and rest against the sidewall of the support column, ensuring the stability of the engaging member 133 within the first groove. Furthermore, when the slider 131 is separated from the engaging member 133, the support column can pull the two halves of the engaging member 133 away from the insert 134, preventing the insert 134 from getting stuck and being unable to be promptly released from the device body 11. This ensures the reliability of the unlocking connection between the locking mechanism 13 and the insert 134.

[0044] The coupling member 133 can preferably be a steel sleeve that is divided into two halves along the diameter direction. In practice, there is no single method for the locking connection between the coupling member 133 and the insert 134. When the coupling member 133 is a steel sleeve, the steel sleeve and the insert 134 are engaged or frictionally engaged. For example, if the steel sleeve and the insert 134 are engaged by a clamping connection, the inner wall of the steel sleeve and the insert 134 are each provided with mutually cooperating clamping structures. When the two halves of the steel sleeve are engaged, the insert 134 is inserted into the steel sleeve to achieve a mutually clamping connection. If the steel sleeve and the insert 134 are frictionally engaged, at least one of the inner wall of the steel sleeve and the outer side of the insert 134 is provided with a rough surface. When the insert 134 is inserted into the steel sleeve, when the two halves of the steel sleeve are engaged, the inner wall of the steel sleeve and the outer side of the insert 134 are mutually clamped and secured by friction. If the steel sleeve and the insert 134 are connected by a snap-fit ​​or frictional connection, threads are provided on the inner wall of the steel sleeve and the insert 134, and the threads of the two threads cooperate with each other. When the two halves of the steel sleeve are in the combined state, the insert 134 is threadedly connected to the steel sleeve. Of course, the joint 133 and the insert 134 can also be connected by other methods, not limited to the above-mentioned methods, and the embodiments of the present application are not limited to this.

[0045] In some optional embodiments, when the release mechanism 12 includes a fuse box 121, a first spring 122 and a bolt 123, a third groove is provided at one axial end of the slider 131, and the third groove cooperates with the screw rod. When the fuse box 121 is not melted, the screw rod is inserted into the third groove, and the other end of the first spring 122 abuts against the open end surface of the third groove.

[0046] When the slider 131 is in contact with the first spring 122, the screw is inserted into the third groove, which can prevent the slider 131 from separating from the first spring 122 when it shakes, causing the slider 131 to lose support and mistakenly trigger the disconnection between the locking mechanism 13 and the insert 134, thereby improving the reliability of the contact between the slider 131 and the first spring 122.

[0047] According to the seat belt release device 1 provided in the embodiment of the present application, the device body 11 has a cavity with two opposite openings, and a release mechanism 12 and a locking mechanism 13 are provided in the cavity of the device body 11. The release mechanism 12 is fixedly arranged at a position close to one of the openings, and is used to detach from the device body 11 according to an external trigger signal. The locking mechanism 13 has at least two ends that successively abut against the release mechanism 12 and the other opening, and is used to be locked and connected with an insert 134 inserted into the other opening from the outside. When the release mechanism 12 detaches from the device body 11, the locking mechanism 13 is disconnected from the insert 134, so that the insert 134 detaches from the device body 11 from the opening, thereby achieving the effect of unlocking the seat belt, so as to ensure that the passenger can quickly detach from the vehicle, reducing the risk of secondary injury to the passenger in the vehicle; in addition, the seat belt release device 1 has a compact structure, low modification cost, is easy to implement in modern vehicles, and has good promotion and application value.

[0048] In practice, the above-mentioned seat belt release device 1 can be applied to the seat belt system of a car, and the seat belt release device 1 is connected to the seat belt. The vehicle status is detected by the collision sensor 3 and the seat sensor 2, and the controller is used to analyze the signal detected by the sensor. When the controller receives the valid detection signal from the collision sensor 3 and the seat sensor 2, the seat belt release device 1 is controlled to disconnect, thereby quickly releasing the seat belt, avoiding the situation where the seat belt cannot be opened in some emergency situations, thereby improving the safety of the car.

[0049] See also Figure 3 In a second embodiment of the present application, a seat belt release system is provided, including a seat sensor 2, a collision sensor 3, a controller 4 and a seat belt release device 1. The seat sensor 2 and the collision sensor 3 are respectively connected to the controller 4, and the controller 4 is connected to the seat belt release device 1. When the controller 4 receives valid detection signals sent by the seat sensor 2 and the collision sensor 3, the locking mechanism 13 in the seat belt release device 1 is controlled to be disconnected from the insert 134. The valid detection signals include a signal indicating that a person is sitting detected by the seat sensor 2 and a collision signal detected by the collision sensor 3.

[0050] The specific implementation of the seat belt release device 1 can be found in the above-mentioned first embodiment or some optional embodiments, which will not be described in detail here.

[0051] Seat sensor 2 detects whether a seat is occupied. The logic of crash sensor 3 is activated only when seat sensor 2 detects occupancy, which is a prerequisite for seatbelt release. In this example, seat sensor 2 can be at least one of a pressure sensor, a capacitive sensor, an optical sensor, an ultrasonic sensor, a temperature sensor, and a biometric sensor.

[0052] The collision sensor 3 is used to detect whether the car has collided. In this embodiment, the collision sensor 3 includes but is not limited to an accelerometer, a force sensor, an axis gyroscope, and an inclination sensor.

[0053] The accelerometer monitors the vehicle's acceleration and detects collisions. High acceleration levels trigger the seatbelt system to release the vehicle. Low acceleration levels are considered minor, preventing accidental release of the seatbelt.

[0054] Force sensors monitor the force applied to seatbelts and determine whether they are under significant tension. A high tension state indicates that the passenger is experiencing significant force in a collision and may be unable to free themselves from the seatbelt, preparing for release. A low tension state indicates no significant external force is acting, and the system remains locked.

[0055] The gyroscope is used to monitor the vehicle's angular velocity, helping to detect whether the vehicle has experienced a rapid rotation or rollover in an accident. A high angular velocity indicates that the vehicle may have experienced a severe rotation or rollover, prompting the user to unlock the seat belts. A low angular velocity indicates that the vehicle is in a normal state and there is no need to unlock the seat belts.

[0056] The tilt sensor monitors the vehicle's tilt angle to determine whether the vehicle has tilted due to a rollover or severe collision. A large tilt indicates a rollover or rollover, further confirming that passengers need to unbuckle their seatbelts. A slight tilt does not trigger the release of the seatbelts.

[0057] Controller 4 may be a domain controller or vehicle controller in a vehicle, or may be a seat controller. For example, in one practical application scenario, the controller uses an NXPS32K series microcontroller integrated circuit as the control core, which can realize data acquisition and control of seat sensor 2, accelerometer, force sensor, axis gyroscope, and inclination sensor.

[0058] In conjunction with some embodiments of the above-mentioned safety belt release device 1, and referring to Figure 1 and Figure 2The seat belt release device 1 is mainly composed of a fuse box 121, a bolt 123, a first spring 122, a slider 131, a second spring 132, a steel ball, a joint piece 133 divided into two halves and the bolt 123. The release process of the safety belt is mainly divided into three movement stages: in the first stage, after the seat belt release device 1 receives the signal sent by the controller 4, the fuse box 121 melts and the first spring 122 pops out; in the second stage, after the first spring 122 pops out, the slider 131 will push upward under the action of the second spring 132, thereby driving the two halves of the joint piece 133 to move upward; in the third stage, when the two halves of the joint piece 133 move upward, the steel ball between the slider 131 and the joint piece 133 will fill the groove on the joint piece 133. Since the joint piece 133 is composed of two halves, it can be disassembled laterally under the drive of the slider 131, so that the joint piece 133 is loosened and falls off, thereby disconnecting the joint piece 133 from the insert 134.

[0059] The embodiment of the present application uses seat sensors 2 and collision sensors 3 to collect vehicle status data, and uses a controller 4 to analyze and process the data collected by various sensors to determine the current state of the vehicle. Based on the vehicle's state, the system controls whether the seatbelt release device 1 remains locked or disconnects to release the seatbelt. This automatically releases the seatbelt after detecting a severe collision, allowing passengers to quickly exit the vehicle and reducing the risk of casualties. Furthermore, the system does not trigger the release of the seatbelt when a minor collision is detected, preventing the seatbelt system from malfunctioning.

[0060] In existing technology, seatbelt systems primarily consist of a seatbelt, a seatbelt buckle, and the vehicle's electronic control system. When a vehicle crashes, the vehicle's electronic control system detects the collision and controls the buckle's locking mechanism, locking it and thus restraining the passenger. However, this technology presents a significant problem: in certain situations, the buckle can become stuck, preventing the passenger from freeing themselves in time. However, existing seatbelt systems are not designed to account for the need for passengers to not release their seatbelts in minor collisions. This can lead to malfunctioning of the seatbelt system, causing unnecessary inconvenience.

[0061] In some optional embodiments, a method for controlling a seat belt release device is provided, comprising:

[0062] Step 1: The data collected by the seat sensor 2 and the collision sensor 3 are used to determine the state of the car;

[0063] Step 2: If the car is in a safe state or a minor collision state, control the seat belt release device 1 to remain in a locked state;

[0064] Step 3: If the car is in a severe collision state, control the seat belt release device 1 to release the seat belt.

[0065] Specifically, the data collected by seat sensor 2 includes signals indicating whether the seat is occupied and whether it is unoccupied. If crash sensor 3 includes an accelerometer, a force sensor, an axial gyroscope, and an inclination sensor, the accelerometer, force sensor, axial gyroscope, inclination sensor, and force sensor are installed at corresponding locations on the vehicle. The data collected by crash sensor 3 includes acceleration signals detected by the accelerometer, force signals detected by the force sensor, angular velocity signals detected by the axial gyroscope, and inclination signals detected by the inclination sensor.

[0066] Specifically, combined Figure 4 For example, if the controller 4 detects that the data collected by the seat sensor 2 is a signal indicating that a person is sitting, the data detected by the accelerometer is a high acceleration change, and the data collected by the inclination sensor or the axial gyroscope exceeds the threshold, for example, the angular velocity signal detected by the axial gyroscope is greater than or equal to the preset angular velocity threshold, and the inclination signal detected by the inclination sensor is greater than or equal to the preset inclination threshold, it means that the car has rolled over or tilted, and the data detected by the force sensor is a force value signal that exceeds the preset force threshold, that is, the seat belt has a high tension, then it is determined that the car is currently in a violent collision state, and the controller 4 will release a high level to the seat belt release device 1, triggering the insert 134 to disengage from the device body 11, thereby releasing the seat belt. If the data detected by the accelerometer, the inclinometer, and the axial gyroscope do not contain any accident status signals (including the data detected by the accelerometer showing that the acceleration change exceeds the threshold, the angular velocity signal detected by the axial gyroscope is less than the preset angular velocity threshold, and the inclination signal detected by the inclinometer is less than the preset inclination threshold), then regardless of whether the force sensor is high tension or low tension, the vehicle status is determined to be a safe state or a minor collision state, and the seat belt release device 1 is controlled to remain locked to avoid malfunction of the release device.

[0067] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0068] The above method for controlling the seat belt release device 1 can be applied to the above seat belt release system, and the controller 4 executes the above steps.

[0069] In some optional embodiments, see Figure 5The controller 4 at least includes: a processor 401, a memory 402, and a computer program 403 stored in the memory 402 and executable on the processor 401. When the processor 401 executes the computer program 403, the steps in the above-mentioned various method embodiments are implemented.

[0070] The controller 4 may include but is not limited to a processor 401 and a memory 402. Those skilled in the art will appreciate that Figure 5 This is merely an example of a controller and does not constitute a limitation of the controller. The controller may include more or fewer components than shown in the figure, or different components.

[0071] The processor 401 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0072] Memory 402 can be an internal storage unit of the controller, such as the controller's hard drive or memory. Memory 402 can also be an external storage device of the controller, such as a plug-in hard drive, a SmartMedia Card (SMC), a Secure Digital (SD) card, or a flash memory card. Memory 402 can also include both the controller's internal storage unit and an external storage device. Memory 402 is used to store computer programs and other programs and data required by the seat belt release system.

[0073] Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional modules in the embodiment can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0074] If the integrated module is implemented as a software functional unit and sold or used as a standalone product, it can be stored in a readable storage medium. Based on this understanding, the present application can implement all or part of the process steps in the above-mentioned method embodiments by using a computer program to instruct the relevant hardware. The computer program can be stored in a readable storage medium, and when executed by a processor, the computer program can implement the steps of each of the above-mentioned method embodiments. The computer program can include computer program code, which can be in source code form, object code form, executable file, or some intermediate form. Computer-readable media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, removable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signals, telecommunications signals, and software distribution media. It should be noted that the content included in computer-readable media can be appropriately increased or decreased based on the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, based on legislation and patent practice, computer-readable media does not include electric carrier signals and telecommunications signals.

[0075] In an application scenario, taking a seat belt release system including a controller that is an NXPS32K series microcontroller integrated circuit, and a collision sensor 3 that includes an accelerometer, a force sensor, an axis gyroscope, and an inclination sensor as an example, the detailed process of the above method for controlling the seat belt release device 1 is as follows:

[0076] System initialization step: Install the NXPS32K series microcontroller integrated circuit in the car's control panel. When the vehicle is started, the NXPS32K series microcontroller integrated circuit completes initialization and configures the parameters and thresholds of various sensors;

[0077] In the data acquisition step, accelerometers, force sensors, axial gyroscopes, inclination sensors, and force sensors are installed at corresponding locations on the vehicle. The control core periodically collects data from these sensors.

[0078] In a data processing step, the controller processes the data collected in the data collection step using a preset algorithm to determine the safety status of the vehicle;

[0079] Decision-making and execution steps: If the seat sensor 2 detects that there is a passenger, the accelerometer detects a high acceleration change, and the inclination sensor or the axial gyroscope monitors that the vehicle rolls or tilts, and the force sensor detects that the seat belt has a high tension, the system will determine that the vehicle has a violent collision. At this time, the controller will release a high level to the seat belt release device 1, thereby releasing the seat belt; if the accelerometer, inclination sensor, and axial gyroscope do not output a serious accident status signal to the controller, at this time, regardless of whether the force sensor has a high tension or a low tension, the system will determine that the vehicle has a minor collision, and the seat belt will remain locked to avoid malfunction of the release device.

[0080] To optimize the accuracy and response speed of seatbelt release, the method for controlling the seatbelt release device 1 may further include a feedback and adjustment step, wherein the control strategy is adjusted based on feedback signals from the seatbelt release device 1. For example, adjusting the control strategy includes, but is not limited to, adjusting sensor thresholds.

[0081] The embodiment of the present application controls the seat belt release system by executing the steps of the method for controlling the seat belt release device 1 by the controller. Compared with the existing seat belt system, it has at least the following advantages:

[0082] 1. By introducing an accelerometer, a force sensor axis gyroscope, and an inclination sensor as collision sensors, the system can accurately monitor the vehicle's status, effectively determining whether a collision has occurred and the severity of the collision. Furthermore, the system is more accurate in detecting collision signals, enabling more timely responses and improving passenger safety.

[0083] 2. When a violent collision is detected in the vehicle, the seat belt release device 1 is controlled to automatically release the seat belt, so that passengers can leave the vehicle as quickly as possible to avoid being trapped in the vehicle, thereby reducing the risk of casualties.

[0084] 3. If a minor collision is detected, the seat belt will not be released, thus avoiding malfunction of the seat belt system and reducing unnecessary trouble;

[0085] 4. The controller executes the steps of the above method to control the seat belt release device 1, which can flexibly respond to different states of the car, thereby improving the adaptability and reliability of the system.

[0086] In a third embodiment of the present application, a car is provided, comprising the above-mentioned seat belt release system.

[0087] Specifically, since the seat belt release system has been described in detail in the above embodiments, it will not be repeated here.

[0088] The embodiment of the present application applies a seat belt release system to a car. In the event of a violent collision of the car, the automatic release system controlled by the controller can unlock the seat belt release device 1 by triggering a fuse, causing the seat belt to automatically disconnect and immediately unlock the seat belt, ensuring that passengers can quickly leave the vehicle and reducing the risk of secondary injury.

[0089] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A seat belt release device, characterized in that: include: The device body has a cavity with two opposite openings; a release mechanism, fixedly disposed in the cavity near one of the openings, for disengaging from the device body in response to an external trigger signal; a locking mechanism disposed in the cavity and having at least two ends abutting against the release mechanism and the other opening in sequence, for lockingly connecting with an insert inserted from the outside into the other opening; wherein when the release mechanism is detached from the device body, the locking mechanism is disconnected from the insert, allowing the insert to be detached from the opening into the device body; The release mechanism includes a fuse box and a first spring. The fuse box is fixedly connected to one of the openings. The first spring is in a compressed state, and one end of the first spring abuts against the fuse box, and the other end of the first spring abuts against the locking mechanism. When the fuse box melts, the first spring is in a released state and detaches from the device body.

2. The seat belt release device according to claim 1, characterized in that: The locking mechanism includes a slider, a second spring and a coupling member, wherein one axial end of the slider abuts against the other end of the first spring, the other axial end of the slider is provided with a first groove, the outer periphery of the first groove is provided with a flange, the second spring is sleeved on the outer periphery of the first groove, and one end of the second spring abuts against the flange, and the other end of the second spring abuts against the position of the other opening of the cavity flush with the other axial end of the slider, the coupling member is provided in the first groove and has at least two states of engagement and separation. When the coupling member is in the engaged state, the coupling member is locked and connected to the insert, and when the coupling member is in the separated state, the coupling member is disconnected from the insert.

3. The seat belt release device according to claim 2, characterized in that: The release mechanism also includes a bolt, which includes a screw head and a screw rod, the screw rod being vertically connected to the screw head, the screw head being provided with a thread and at least one through hole, one of the openings being provided with a thread matching the screw head, the bolt being fastened to one of the openings via the screw head, the screw rod being inserted into the cavity, a fuse box being fixed on the outward end of each through hole, the fuse box corresponding to a first spring, one end of the first spring being inserted into the inward end of the through hole and abutting against the fuse box.

4. The seat belt release device according to claim 3, characterized in that: The joint is divided into two halves, and a plurality of second grooves are provided on the outer periphery of each half of the joint along the expansion and contraction direction of the second spring. A limit block is provided between the outer periphery of the joint and the inner wall of the first groove. When the limit block is located between the outer periphery of the joint and the inner wall of the first groove, the limit block contacts the outer periphery of the joint and the inner wall of the first groove respectively, and the two halves of the joint are in a combined state; when the limit block is located in the second groove, the two halves of the joint are in a separated state.

5. The seat belt release device according to claim 4, characterized in that: A supporting column is provided at the bottom of the first groove. When the two halves of the engaging member are in a combined state, the two halves of the engaging member rest against the supporting column respectively.

6. The seat belt release device according to claim 3, characterized in that: A third groove is provided at one axial end of the slider, and the third groove cooperates with the screw. When the fuse box is not melted, the screw is inserted into the third groove, and the other end of the first spring abuts against the open end surface of the third groove.

7. The seat belt release device according to any one of claims 2 to 6, characterized in that: The joint piece is a steel sleeve, and the inner wall of the steel sleeve is engaged with the insert piece by snapping or friction.

8. A seat belt release system, characterized in that: The safety belt release device comprises a seat sensor, a collision sensor, a controller and the safety belt release device according to any one of claims 1 to 7, wherein the seat sensor and the collision sensor are respectively connected to the controller, and the controller is connected to the safety belt release device. When the controller receives valid detection signals sent by the seat sensor and the collision sensor, the controller controls the locking mechanism in the safety belt release device to be disconnected from the insert, and the valid detection signal includes a signal indicating that a person is sitting detected by the seat sensor and a collision signal detected by the collision sensor.

9. An automobile, characterized in that: Including the seat belt release system of claim 8.

Images