Safety belt main body and safety belt heating device

Abstract

A seat belt body (100) and a seat belt heating device (200). The seat belt body (100) includes a tubular webbing belt (10) having a tubular space inside, a heating assembly (20) including a first printed circuit board (21) and fixed inside the tubular space, and a protector (30) including a second printed circuit board (31) electrically connected to the first printed circuit board (21) and used to transmit the temperature signal and electrical signal of the heating assembly (20). The protector (30) further includes a housing (32). The housing (32) is fixed so as to cover the outside of the tubular webbing belt (10). An accommodation space is provided inside the housing (32), and the first printed circuit board (21) and the second printed circuit board (32) are located in the accommodation space.

Description

Technical Field

[0001] The present invention relates to the technical field of safety belts, and particularly to a safety belt body and a safety belt heating device.

Background Art

[0002] In related technologies, safety belts are often applied in vehicles and entertainment facilities to ensure the safety of passengers. However, on cold days, the flexibility of the safety belt is poor and fragile, and the safety of the safety belt is significantly reduced.

[0003] Also, when the vehicle safety belt is in close contact with the passenger's body, the cold safety belt easily absorbs the passenger's body temperature, weakening the passenger's comfort. Therefore, a safety belt with a heating function is a trend for future safety belts. By heating the safety belt, passengers can use it comfortably, and they can also take off thick coats in the car to enhance comfort, bringing a warm riding experience.

Summary of the Invention

[0004] To overcome the problems existing in related technologies, the present disclosure provides a safety belt body and a safety belt heating device.

[0005] According to a first aspect of an embodiment of the present disclosure, the present disclosure includes a tubular webbing belt having a tubular space inside, a first printed circuit board used to monitor temperature and generate a temperature signal, a heating assembly fixed in the tubular space, and a protector including a second printed circuit board electrically connected to the first printed circuit board and used to transmit the temperature signal and electrical signal of the heating assembly. The protector further includes a housing fixed to cover the outside of the webbing belt, and a receiving space is provided inside the housing. The first printed circuit board and the second printed circuit board are located in the receiving space to provide a safety belt body.

[0006] In some embodiments, pins are provided on the first printed circuit board, pin connectors are provided on the webbing belt of the second printed circuit board, the second printed circuit board is located outside the above, and one end of the pin can penetrate the webbing belt and be electrically connected to the pin connector.

[0007] In some embodiments, the safety belt body further includes a fastener, a plug groove is provided on the inner wall of the housing, and one end of the fastener penetrates the first printed circuit board, the webbing belt, and the second printed circuit board in sequence and is inserted into the plug groove so as to realize the fixation of the first printed circuit board and the second printed circuit board and the fixation of the housing and the webbing belt.

[0008] In some embodiments, the housing includes a first housing located on the first surface of the webbing belt and provided with a locking body, and a second housing located on the second surface of the webbing belt and provided with a hook. When the hook is locked to the locking body, a detachable connection between the first housing and the second housing is realized.

[0009] In some embodiments, the protector further includes an ECU connector provided outside the housing and a connection wire with both ends electrically connected to the second printed circuit board and the ECU connector respectively.

[0010] In some embodiments, the heating assembly and the webbing belt are fixed by an adhesive applied to one or both sides of the heating assembly.

[0011] In some embodiments, the adhesive has a melting point of 120°C to 140°C, and the heating assembly and the webbing belt are adhered by heating or curing at room temperature.

[0012] In some embodiments, the heating assembly further includes a base including a connection portion located at an end, and a heating wire disposed along the length direction of the base and fixed to the base. The first printed circuit board is provided at the connection portion and electrically connected to the heating wire. A thermistor is provided on the first printed circuit board. One end of the thermistor is connected to the first printed circuit board, and the other end is inserted between the heating wires and is used to detect the temperature of the heating wire.

[0013] In some embodiments, the base includes a nylon material or a non-woven fabric material.

[0014] According to a second aspect of the embodiments of the present disclosure, the present disclosure provides a seat belt heating device including a retractor, an anchor, a safety belt body described in the first aspect having opposite first and second ends, the first end connected to the retractor, and the second end connected to the anchor, a locking tang provided to cover the outside of the safety belt body and slidable along the length direction of the safety belt body, a webbing belt clip provided to cover the safety belt body and used to restrict the position of the locking tang, and an annular guide plate provided to cover the outside of the safety belt body and used to guide the safety belt body, and the safety belt body is slidable relative to the annular guide plate.

[0015] The technical solution according to the embodiments of the present disclosure can include the following beneficial effects. By providing a protector, it can play a role in transmitting the temperature signal and electrical signal of the heating assembly. The ECU can control the temperature of the heating assembly according to the temperature signal to avoid the temperature of the heating assembly being too high or too low, so as to improve the comfort of passengers. At the same time, the housing of the protector protects the electronic components inside the housing, avoids the collision, damage of the components, or erosion by moisture, impurities, etc., and can extend the service life.

Brief Description of the Drawings

[0016] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used to explain the principles of the present disclosure together with the specification.

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Embodiments for Carrying out the Invention

[0017] Here, exemplary embodiments will be described in detail, and the examples are shown in the drawings. In the following description with reference to the drawings, unless otherwise specified, the same numbers in different drawings indicate the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, these are merely examples of devices and methods consistent with some forms of the present disclosure described in detail in the appended claims.

[0018] The present disclosure provides a seatbelt heating device 200. As shown in FIG. 1, the seatbelt heating device 200 includes a seatbelt body 100, a retractor 50, and an anchor 60. The seatbelt body 100 includes opposite first and second ends. The first end is connected to the retractor 50, and the retractor 50 is used for winding and unwinding the seatbelt body 100. The second end is connected to the anchor 60, and the anchor 60 is used for fixing the seatbelt body 100 when used by a passenger.

[0019] Here, the seatbelt body 100 includes a tubular webbing belt 10, a heating assembly 20 fixedly provided inside the tubular webbing belt 10, and a protector 30 fixedly provided outside the tubular webbing belt 10 and electrically connected to the heating assembly 20. By monitoring the temperature of the heating assembly 20, the protector 30 transmits the temperature signal in the form of an electrical signal.

[0020] In this way, by providing the protector 30, the ECU can receive the temperature signal transmitted from the protector 30 so that the temperature of the heating assembly 20 is monitored and controlled in real time by the temperature signal, avoiding the temperature of the heating assembly 20 from becoming excessively high or low, and enhancing the comfort of the passenger. At the same time, the housing of the protector 30 protects the electronic components inside the housing, avoids the collision, damage of the components, or erosion by moisture, impurities, etc., and can extend the service life of the protector 30 and even the entire seatbelt heating device 200.

[0021] Also, as shown in FIG. 1 again, the protector 30 is provided at the second end of the seatbelt body 100, thereby saving space and avoiding pressing the passenger by the protector 30. In other embodiments, the protector 30 may be provided at the first end of the seatbelt body 100, or may be provided at any position on the seatbelt body 100 according to the actual space or design requirements, and is not specifically limited here.

[0022] Specifically, the tubular webbing belt 10 has a tubular space inside. Since the tubular webbing belt 10 is excellent in flexibility, wrinkles can be prevented from occurring on the webbing belt 10, and the appearance and service strength of the webbing belt 10 can be avoided from being affected.

[0023] The heating assembly 20 is fixedly installed inside the tubular space of the webbing belt 10. Here, the heating assembly 20 may be fixed to the webbing belt 10 by means such as sewing, stapling, or adhesive. In the embodiments of the present disclosure, the heating assembly 20 and the webbing belt 10 are fixed by an adhesive applied to one or both sides of the heating assembly 20.

[0024] Furthermore, the tubular webbing belt 10 may be a hollow webbing belt integrally woven, or may be a tubular webbing belt formed by folding a sheet-shaped webbing belt.

[0025] When the webbing belt 10 is a hollow webbing belt integrally woven, after applying an adhesive to one or both sides of the heating assembly 20, the heating assembly 20 is embedded in the integrally formed hollow webbing belt. Here, the adhesive may have a melting point of 120°C to 140°C. After heating or curing at room temperature, the inner wall of the heating assembly 20 and the webbing belt 10 are adhered, thereby realizing the adhesion between the heating assembly 20 and the webbing belt 10.

[0026] Alternatively, after applying an adhesive to both sides of the heating assembly 20, the heating assembly 20 is placed on the webbing belt 10. After adhering one side of the heating assembly 20 to the webbing belt 10, the webbing belt 10 is folded in half and adhered to the other side of the heating assembly 20. The adhesive can also realize the adhesion between the webbing belt 10 and the heating assembly 20 by heating or curing at room temperature.

[0027] Note that the fixing method of the heating assembly 20 and the webbing belt 10 in the above embodiments is merely exemplary and is not intended to limit the protection scope of the present disclosure. For example, it may be fixed by a high-frequency welding method. Therefore, all methods capable of fixing the heating assembly 20 and the webbing belt 10 in this field are within the protection scope of the present disclosure, but are not enumerated herein.

[0028] As shown in FIGS. 2 and 3, the heating assembly 20 includes a first printed circuit board 21, a base 22, and a heating wire 23.

[0029] Specifically, the base 22 may be made of a nylon material or a non-woven fabric material and may have an elongated sheet-like structure. Note that the materials of the base 22 listed above are merely exemplary and are not intended to limit the protection scope of the present disclosure. In other embodiments, the base 22 may be made of other types of fabrics, such as fabric materials like cloth.

[0030] One or more heating wires 23 may be provided. When a plurality of heating wires 23 are provided in the heating assembly 20, the plurality of heating wires 23 may be arranged in parallel along the length direction of the base 22 and may be fixed to the inner wall or the surface of the base 22. The heating wire 23 may extend linearly or may extend in a curved shape.

[0031] In the embodiment of the present disclosure, the heating wire 23 is in a curved shape. Since the safety belt body 100 needs to be repeatedly used many times, the curved heating wire 23 can reduce the probability of the heating wire 23 being broken after being bent multiple times and can extend the service life.

[0032] In this embodiment, as shown in FIG. 1, the protector 30 is provided at a position close to the second end of the seat belt body 100. Therefore, the base 22 includes a connection portion 221 located at the end of the base 22. The first printed circuit board 21 is provided at the connection portion 221, electrically connected to the heating wire 23, and used to transmit a temperature signal to the ECU. The ECU generates a control command based on the temperature signal and feeds back to the heating wire 23 to control the temperature rise and fall of the heating wire 23.

[0033] The first printed circuit board 21 includes a thermistor 212. One end of the thermistor 212 is connected to the first printed circuit board 21, and the other end is inserted between the heating wires 23 and is used to detect the temperature of the heating wires 23. Since the thermistor 212 may be a sensing element such as an NTC (negative temperature coefficient) thermistor 212 whose resistance value decreases as the temperature increases, the NTC thermistor 212 is used as a temperature sensor to measure the temperature of the heating wires 23, convert the temperature into a temperature signal, and transmit it to the ECU connector 33 connected to the second printed circuit board 31.

[0034] As shown in FIGS. 5 and 6, the protector 30 includes a second printed circuit board 31 that is electrically connected to the first printed circuit board 21 and used to transmit the temperature signal and electrical signal of the heating assembly 20.

[0035] Furthermore, pins 211 (as shown in FIGS. 3, 5, and 6) are provided on the first printed circuit board 21, and pin connectors 311 (as shown in FIGS. 5 and 6) are provided on the second printed circuit board 31.

[0036] At least three pins 211 may be provided. Here, two of the pins 211 are a positive electrode pin and a negative electrode pin, respectively, and are used to turn on the circuit and transmit an electrical signal, and can supply power to the first printed circuit board 21, the second printed circuit board 31, the heating wire 23, etc. At least one pin 211 is used to transmit the temperature signal generated by the NTC thermistor 212 connected to the first printed circuit board 21.

[0037] In an embodiment of the present disclosure, four pins 211 are provided. Two of the pins 211 are used to transmit the temperature signal generated by the NTC thermistor 212 connected to the first printed circuit board 21, and the remaining two pins 211 are used to transmit an electrical signal.

[0038] As shown in FIG. 6, the first printed circuit board 21 is located inside the webbing belt 10, the second printed circuit board 31 is located outside the webbing belt 10, and one end of the pin 211 is electrically connected to the pin connector 311 by passing through the webbing belt 10. Therefore, the first printed circuit board 21 can transmit the temperature signal of the heating wire 23 to the second printed circuit board 31 via the pin 211.

[0039] In this way, by connecting the first printed circuit board 21 and the second printed circuit board 31 via the pin 211, damage to the webbing belt 10 can be reduced, a decrease in the strength of the webbing belt 10 can be avoided, and the service life of the webbing belt 10 can be extended.

[0040] Furthermore, as shown in FIG. 4, the protector 30 further includes a housing 32, an ECU connector 33, and a connection wire 34. The housing 32 is fixed so as to cover the outside of the webbing belt 10, and an accommodation space in which the first printed circuit board 21 and the second printed circuit board 31 are located is provided inside the housing 32. The housing 32 can serve to protect the first printed circuit board 21 and the second printed circuit board 31.

[0041] The ECU connector 33 is provided outside the housing 32 and realizes electrical connection with the second printed circuit board 31 via the connection wire 34. The ECU connector 33 is used to be electrically connected to an in-vehicle ECU. Here, the thermistor 212 measures the temperature of the heating wire 23, and transmits the temperature signal to the ECU sequentially through the first printed circuit board 21, the pin 211, the second printed circuit board 31, the connection wire 34, and the ECU connector 33. The ECU realizes overall temperature control of the heating assembly 20 of the safety belt body 100 by feeding back temperature control to the heating wire 23 based on the temperature signal.

[0042] Furthermore, as shown in FIGS. 5 and 6, the safety belt body 100 further includes a fastener 40. As shown in FIG. 7, a plug groove 323 is provided on the inner wall of the housing 32. The fastener 40 is used for fixing and positioning the first printed circuit board 21 and the second printed circuit board 31.

[0043] The fastener 40 may include a head 41 and a tip 42. The fastener 40 is inserted into the plug groove 323 through the first printed circuit board 21, the webbing belt 10, and the second printed circuit board 31 in sequence so that the fixing of the second printed circuit board 31 and the first printed circuit board 21, the fixing of the second printed circuit board 31 and the webbing belt 10, and the fixing of the housing 32 and the webbing belt 10 are realized.

[0044] The head 41 of the fastener 40 may be located outside the webbing belt 10 or inside the webbing belt 10. When the head 41 of the fastener 40 is located outside the webbing belt 10, the tip 42 of the fastener 40 needs to penetrate through two layers of the webbing belt 10. However, when the head 41 of the fastener 40 is located inside the webbing belt 10 (for example, in the embodiment of the present disclosure), the tip 42 of the fastener 40 only needs to penetrate through one layer of the webbing belt 10. The fastener 40 may be a plug, and the plug structure can avoid damaging the strength of the webbing belt 10.

[0045] Furthermore, the housing 32 includes a first housing 321 and a second housing 322 that are detachably connected. As shown in FIGS. 5 and 6, the first housing 321 is located on the first surface 11 of the webbing belt 10, and the second housing 322 is located on the second surface 12 of the webbing belt 10.

[0046] As shown in FIG. 7, a locking body 3211 is provided on the first housing 321. As shown in FIGS. 5, 6, and 8, a hook 3221 is provided on the second housing 322. The position of the hook 3221 on the second housing 322 corresponds to the position of the locking body 3211 on the first housing 321. By locking the hook 3221 to the locking body 3211, a detachable connection between the first housing 321 and the second housing 322 is realized.

[0047] The detachable connection between the first housing 321 and the second housing 322 facilitates the attachment and removal of the housing 32, and also facilitates the maintenance and replacement of the components inside the housing 32. In the embodiments of the present disclosure, the hook 3221 and the locking body 3211 are located at the ends of the housing 32. In other embodiments, the hook 3221 and the locking body 3211 may be located at the central part of the housing 32. Therefore, the positions of the hook 3221 and the locking body 3211 may be provided at any position in the housing 32 according to the design requirements, and are not specifically limited here.

[0048] Also, in the embodiments of the present disclosure, the plug groove 323 is provided on the inner wall of the first housing 321. At a position corresponding to the plug groove 323 on the inner wall of the second housing 322, a retraction hole 324 used to retract the head 41 of the fastener 40 may be provided in the same way. On the inner wall of the first housing 321, a connection line groove 3212 used to regulate and guide the connection line 34 is further provided.

[0049] Based on the same inventive concept, the present disclosure further provides a seat belt heating device 200. As shown in FIG. 1, it can be seen from the above that the seat belt heating device 200 includes a seat belt body 100, a retractor 50, and an anchor 60, and further includes a locking tongue 70, a webbing belt clip 80, and an annular guide plate 90.

[0050] Here, the annular guide plate 90 is provided to cover the outside of the seat belt body 100 and is often fixed at a position such as a seat. Since the seat belt body 100 is slidable relative to the annular guide plate 90, it serves to guide the seat belt body 100.

[0051] The locking tongue 70 is provided to cover the outside of the seat belt body 100 and is slidable along the length direction of the seat belt body 100. By connecting the locking tongue 70 and the anchor 60, the fixing of the passenger by the seat belt body 100 is realized. The webbing belt clip 80 is provided to cover the position for restricting the locking tongue 70 on the seat belt body 100.

[0052] Regarding the specific form of the function realized by the seat belt heating device 200 in the above embodiment, since it is described in detail in the embodiment regarding the seat belt body 100, it will not be described in detail here.

[0053] It should be understood that in the present disclosure, "a plurality" means two or more, and the same applies to other numeral classifiers. "And / or" describes the relationship of related objects and indicates that three relationships may exist. For example, A and / or B can indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "one", "the foregoing", and "the said" are also intended to include the plural form unless the context clearly indicates otherwise.

[0054] Furthermore, terms such as "first" and "second" are used to describe various structures, but it can be understood that these structures are not limited to these terms. These terms are merely used to distinguish structures of the same type from each other and do not indicate a specific order or importance. In fact, descriptions such as "first" and "second" can be used completely interchangeably. For example, without departing from the scope of the present disclosure, the first structure may be referred to as the second structure, and similarly, the second structure may be referred to as the first structure.

[0055] Furthermore, the orientation or positional relationship indicated by terms such as "center", "longitudinal direction", "lateral direction", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings and is merely for facilitating the description of the present embodiment and simplifying the description, and it can be understood that it does not indicate or imply that the mentioned device or element must have a specific orientation and be configured and operated in a specific orientation.

[0056] Furthermore, unless otherwise specified, "connection" includes direct connection where no other member exists between the two, but also includes indirect connection where other members exist between the two.

[0057] Furthermore, in the embodiments of the present disclosure, although operations are described in a specific order in the drawings, it should be understood that it is not required to execute these operations in the specific order or serial order shown, or to execute all the operations shown, in order to obtain the expected results. In certain environments, multitasking and parallel processing may be advantageous.

[0058] After considering the specification and practicing the invention disclosed herein, those skilled in the art can readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the art not disclosed in the present disclosure. The specification and examples are to be regarded as merely illustrative, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0059] The present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A tubular webbing belt (10) having a tubular space therein, a heating assembly (20) including a first printed circuit board (21) used to monitor temperature and generate a temperature signal, and fixed within the tubular space, a protector (30) including a second printed circuit board (31) electrically connected to the first printed circuit board (21) and used to transmit the temperature signal and electrical signal of the heating assembly (20), wherein the protector (30) further includes a housing (32), the housing (32) is fixed so as to cover the outside of the webbing belt (10), a receiving space is provided inside the housing (32), and the first printed circuit board (21) and the second printed circuit board (31) are located in the receiving space, characterizing a safety belt body (100).

2. Pins (211) are provided on the first printed circuit board (21), pin connectors (311) are provided on the second printed circuit board (31), the second printed circuit board (31) is located outside the webbing belt (10), and one end of the pin (211) can be electrically connected to the pin connector (311) through the webbing belt (10). The safety belt body (100) according to claim 1, characterized in that.

3. The safety belt body (100) further includes a fastener (40), and a plug groove (323) is provided on the inner wall of the housing (32). One end of the fastener (40) sequentially penetrates the first printed circuit board (21), the webbing belt (10) and the second printed circuit board (31) and is inserted into the plug groove (323) so as to realize the fixation of the first printed circuit board (21) and the second printed circuit board (31), and the fixation of the housing (32) and the webbing belt (10). The safety belt body (100) according to claim 1, characterized in that.

4. The housing (32) includes a first housing (321) located on the first surface (11) of the webbing belt (10) and provided with a locking body (3211), and a second housing (322) located on the second surface (12) of the webbing belt (10) and provided with a hook (3221). When the hook (3221) is locked to the locking body (3211), a detachable connection between the first housing (321) and the second housing (322) is realized. The safety belt body (100) according to claim 1, characterized in that.

5. The protector (30) is an ECU connector (33) provided outside the housing (32), and a connection wire (34) having both ends electrically connected to the second printed circuit board (31) and the ECU connector (33), respectively. The safety belt body (100) according to claim 1, characterized in that.

6. The heating assembly (20) and the webbing belt (10) are fixed by an adhesive applied to one or both sides of the heating assembly (20). The safety belt body (100) according to claim 1, characterized in that.

7. The adhesive has a melting point of 120°C to 140°C, and the heating or room temperature curing realizes the adhesion between the heating assembly (20) and the webbing belt (10). The safety belt body (100) according to claim 6, characterized in that.

8. The heating assembly (20) is a base (22) including a connection portion (221) located at an end, and a heating wire (23) arranged along the length direction of the base (22) and fixed to the base (22). The first printed circuit board (21) is provided at the connection portion (221), electrically connected to the heating wire (23), a thermistor (212) is provided on the first printed circuit board (21), one end of the thermistor (212) is connected to the first printed circuit board (21), and the other end is inserted between the heating wires (23) and is used to detect the temperature of the heating wire (23). The safety belt body (100) according to claim 1, characterized in that.

9. The base (22) includes a nylon material or a non-woven fabric material. The safety belt body (100) according to claim 8, characterized in that.

10. a retractor (50), an anchor (60), and a safety belt body (100) according to any one of claims 1 to 9, including a first end and a second end facing each other, the first end being connected to the retractor (50), and the second end being connected to the anchor (60). A locking tang (70) provided to cover the outside of the safety belt body (100) and slidable along the length direction of the safety belt body (100); A webbing belt clip (80) provided to cover the safety belt body (100) and used to regulate the position of the locking tang (70); An annular guide plate (90) provided to cover the outside of the safety belt body (100), used to guide the safety belt body (100), and with respect to which the safety belt body (100) is slidable, A safety belt heating device (200), characterized by the above.

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