Automobile seat safety belt device with heating function and automobile seat

Abstract

The utility model discloses an automobile seat safety belt device with a heating function and an automobile seat, and relates to the technical field of automobile seats.The safety belt device comprises a safety belt body, at least one end of the safety belt body is connected with a winding device through a guide structure, and a spring bolt is fixedly arranged on the safety belt body; a heating assembly is arranged in the safety belt body and electrically connected with the spring bolt. The lock catch electricity taking device is used for being connected with the spring bolt in an inserted mode and supplying power to the heating assembly through the spring bolt; the safety belt body at least comprises a main heating area and an auxiliary heating area, and the heating assembly at least comprises a first heating loop located in the main heating area and the auxiliary heating area and at least one second heating loop only located in the main heating area. And the first heating loop and the second heating loop are mutually independent. The safety belt has fault tolerance for coping with more damage conditions, the heating effect of the safety belt is guaranteed, and a more comfortable riding environment is provided for passengers.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile seats, in particular to an automobile seat safety belt device with heating function and an automobile seat. BACKGROUND

[0002] Automobile seat heating has become a basic comfort configuration in today's cars. Safety belt heating can improve the comfort of driving and riding in cold weather, reduce physical discomfort and muscle tension caused by cold; and help to relieve the cold feeling of the waist and shoulders during long driving.

[0003] Currently, due to the limitation of heating materials, the service life of the safety belt heating pad cannot meet the needs of the whole vehicle. In order to improve the service life of the heating wire, the safety belt heating area cannot be repeatedly bent and rubbed, and at the same time, the heating effect provided by the safety belt for passengers must be considered, which makes it difficult to arrange the heating area on the current safety belt. CONTENT OF THE INVENTION

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an automobile seat safety belt device with heating function and an automobile seat.

[0005] In a first aspect, the present application provides an automobile seat safety belt device with heating function, wherein a guide structure is arranged on the automobile seat, and the automobile seat safety belt device comprises:

[0006] a safety belt body, at least one end of the safety belt body being connected to a winding device through the guide structure, a lock tongue being fixedly arranged on the safety belt body, and a heating assembly being arranged inside the safety belt body, the heating assembly being electrically connected to the lock tongue;

[0007] a lock catch power extractor, the lock catch power extractor being used for plugging with the lock tongue and supplying power to the heating assembly through the lock tongue;

[0008] The safety belt body comprises at least one main heating area and one auxiliary heating area, the heating assembly comprises at least one first heating loop located in the main heating area and the auxiliary heating area, and at least one second heating loop located only in the main heating area; the first heating loop and the second heating loop are independent of each other.

[0009] According to the technical scheme provided by the present application, the safety belt device is a two-point safety belt, the winding device is a seat cushion winder, and the guide structure is a seat cushion guide plate.

[0010] One end of the safety belt body is connected to the seat cushion winder, and the other end passes through the seat cushion guide plate and is fixedly provided with the lock tongue.

[0011] The main heating zone is a first main heating zone, and the auxiliary heating zone is a first auxiliary heating zone.

[0012] The first main heating zone is configured to heat the region between the lock tongue and the cushion guide plate when the safety belt device is in the first state, and the first auxiliary heating zone is configured to heat the region between the cushion guide plate and the cushion retractor when the safety belt device is in the first state.

[0013] The first heating circuit includes at least one first sub-heating circuit located in the first main heating zone and the first auxiliary heating zone, and the second heating circuit includes at least one second sub-heating circuit located only in the first main heating zone.

[0014] According to the technical scheme provided in the application, when the safety belt device is in the second state, the lock tongue is arranged adjacent to the cushion guide plate.

[0015] The first main heating zone is configured to heat the region between the lock tongue and the cushion guide plate when the safety belt device is in the first state, and heat the region between the cushion guide plate and the cushion retractor when the safety belt device is in the second state.

[0016] According to the technical scheme provided in the application, the safety belt device is a three-point safety belt, the retractor device includes a cushion retractor and a shoulder retractor, and the guide structure includes a cushion guide plate and a shoulder guide plate.

[0017] One end of the safety belt body is connected to the cushion retractor, the other end sequentially passes through the cushion guide plate and the shoulder guide plate, and is connected to the shoulder retractor, and the lock tongue is arranged between the cushion guide plate and the shoulder guide plate.

[0018] The main heating zone includes a first main heating zone and a second main heating zone, and the auxiliary heating zone includes a first auxiliary heating zone and a second auxiliary heating zone.

[0019] The first main heating zone is configured to locate the seat belt body between the lock tongue and the seat cushion guide plate when the seat belt device is in the first state; the first auxiliary heating zone is configured to locate the seat belt body between the seat cushion guide plate and the seat cushion retractor when the seat belt device is in the first state; the second main heating zone is configured to locate the seat belt body between the lock tongue and the shoulder guide plate when the seat belt device is in the first state; and the second auxiliary heating zone is configured to locate the seat belt body between the shoulder guide plate and the shoulder retractor when the seat belt device is in the first state.

[0020] The first heating circuit comprises at least one first sub-heating circuit located in the first main heating zone and the first auxiliary heating zone, and at least one second sub-heating circuit located only in the second main heating zone and the second auxiliary heating zone.

[0021] The second main heating circuit comprises at least one third sub-heating circuit located only in the first main heating zone, and / or at least one fourth sub-heating circuit located only in the second main heating zone.

[0022] According to the technical scheme provided in the application, the retractor is arranged inside the automobile seat or inside the vehicle body frame.

[0023] According to the technical scheme provided in the application, when the seat belt device is in the second state, the lock tongue is arranged corresponding to the upper part of the automobile seat.

[0024] The first main heating zone is configured to locate the seat belt body between the lock tongue and the seat cushion guide plate when the seat belt device is in the first state, and the seat belt body is still located in the region between the lock tongue and the seat cushion guide plate when the seat belt device is in the second state.

[0025] The second main heating zone is configured to locate the seat belt body between the lock tongue and the shoulder guide plate when the seat belt device is in the first state, and the seat belt body is located in the region between the shoulder guide plate and the shoulder retractor when the seat belt device is in the second state.

[0026] According to the technical scheme provided in the application, when the seat belt device is in the second state, the lock tongue is arranged corresponding to the middle part of the automobile seat.

[0027] The first main heating area is configured to, when the safety belt device is in the first state, the safety belt body is located between the lock tongue and the cushion guide plate, and when the safety belt device is in the second state, the safety belt body is still located in the area between the lock tongue and the cushion guide plate.

[0028] The second main heating area is configured to, when the safety belt device is in the first state, the safety belt body is located between the lock tongue and the shoulder guide plate, and when the safety belt device is in the second state, the safety belt body is still located in the area between the lock tongue and the shoulder guide plate.

[0029] According to the technical scheme provided in the application, when the safety belt device is in the second state, the lock tongue corresponds to the lower part of the automobile seat;

[0030] The first main heating area is configured to, when the safety belt device is in the first state, the safety belt body is located between the lock tongue and the cushion guide plate, and when the safety belt device is in the second state, the safety belt body is located in the area between the cushion guide plate and the cushion retractor.

[0031] The second main heating area is configured to, when the safety belt device is in the first state, the safety belt body is located between the lock tongue and the shoulder guide plate, and when the safety belt device is in the second state, the safety belt body is still located in the area between the lock tongue and the shoulder guide plate.

[0032] According to the technical scheme provided in the application, the safety belt body is provided with at least two limiting pieces, and the two limiting pieces are respectively arranged on both sides of the lock tongue, for fixing the lock tongue.

[0033] In the second aspect, the application provides an automobile seat applying the safety belt device with the heating function.

[0034] In summary, the technical scheme specifically discloses a safety belt device with a heating function and an automobile seat, wherein the safety belt device comprises a safety belt body, at least one end of the safety belt body is connected with a retractor through a guide structure, a lock tongue is fixedly arranged on the safety belt body, and a heating assembly is arranged in the safety belt body and is electrically connected with the lock tongue; a lock catch power extractor is used for being plugged with the lock tongue and supplying power to the heating assembly through the lock tongue; the safety belt body comprises at least one main heating area and one auxiliary heating area, the heating assembly comprises at least one first heating circuit located in the main heating area and the auxiliary heating area, and at least one second heating circuit located only in the main heating area; the first heating circuit and the second heating circuit are independent of each other.

[0035] Existing seat belts prioritize improving the heating effect for passengers by extending the lifespan of their internal heating wires, making it difficult to arrange heating zones on current seat belts. In this application, a locking tongue is fixedly installed on the seat belt body, and a heating component is installed inside it. The seat belt body is divided into a main heating zone and an auxiliary heating zone. The heating component, based on the design of the main heating zone and the auxiliary heating zone, also includes at least an independently set first heating circuit and a second heating circuit. This ensures that if one heating circuit fails or is damaged, the other heating circuit can still maintain the heating function of the seat belt body, thereby providing passengers with a better riding environment and experience. Attached Figure Description

[0036] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0037] Figure 1 This is a schematic diagram showing the heating zone arrangement of a two-point seatbelt device in its first state.

[0038] Figure 2 This is a schematic diagram showing the heating zone arrangement of a two-point seatbelt device in its second state.

[0039] Figure 3 This is a schematic diagram showing the arrangement of the heating zone in the rear seat with the three-point seatbelt device in its first position.

[0040] Figure 4 This is a schematic diagram showing the arrangement of the heating zone in the front seat with the three-point seatbelt device in its first position.

[0041] Figure 5 This is a schematic diagram of the first type of heating zone arrangement for the three-point seat belt device in the second state in the rear seats.

[0042] Figure 6 This is a schematic diagram of the first type of heating zone arrangement for the three-point seat belt device in the front seat with the device in the second state.

[0043] Figure 7 This is a schematic diagram of the heating circuit on the seat belt itself.

[0044] Figure 8 This is a schematic diagram of the second type of heating zone arrangement for the three-point seat belt device in the second state in the rear seats.

[0045] Figure 9 This is a schematic diagram of the second type of heating zone arrangement for the three-point seat belt device in the front seats, with the device in its second state.

[0046] Figure 10 This is a schematic diagram of the first type of heating zone arrangement for the three-point seat belt device in the third state in the rear seats.

[0047] Figure 11 Fig. 2 is a schematic view of a second heating zone arrangement for a three-point seat belt device in a front seat in a third state.

[0048] Figure 12 Fig. 3 is a schematic view of a mounting belt device in cooperation with a human body.

[0049] Figure 13 Fig. 4 is a schematic view of a seat belt body in cooperation with a limiting member.

[0050] Fig. 1 is a schematic view of a seat belt device in a front seat of a vehicle. Fig. 2 is a schematic view of a second heating zone arrangement for a three-point seat belt device in a front seat in a third state. Fig. 3 is a schematic view of a mounting belt device in cooperation with a human body. Fig. 4 is a schematic view of a seat belt body in cooperation with a limiting member. Fig. 5 is a schematic view of a heating assembly. Fig. 6 is a schematic view of a lock catch power extractor. Fig. 7 is a schematic view of a B-pillar guiding plate. Fig. 8 is a schematic view of a B-pillar retractor. Fig. 9 is a schematic view of a limiting member. 01, vehicle seat; 02, cushion guiding plate; 03, backrest guiding plate; 1, seat belt body; 11, first main heating zone; 12, first auxiliary main heating zone; 13, second main heating zone; 14, second auxiliary heating zone; 2, cushion retractor; 3, backrest retractor; 4, lock tongue; 5, heating assembly; 6, lock catch power extractor; 07, B-pillar guiding plate; 7, B-pillar retractor; 9, limiting member. DETAILED DESCRIPTION

[0051] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation of the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0052] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0053] Embodiment 1

[0054] Referring to Figures 1-12 The heating zone arrangement schematic view provided by the present embodiment is shown. The seat belt device comprises a seat belt body 1, at least one end of the seat belt body 1 is connected to a retractor through a guiding structure, a lock tongue 4 is fixedly arranged on the seat belt body 1, and a heating assembly 5 is arranged inside the seat belt body 1, the heating assembly 5 is electrically connected to the lock tongue 4;

[0055] A lock catch power extractor 6 is used for plugging with the lock tongue 4, and supplying power to the heating assembly 5 through the lock tongue 4;

[0056] The seat belt body 1 comprises at least one main heating zone and one auxiliary heating zone, the heating assembly 5 comprises at least one first heating circuit located in the main heating zone and the auxiliary heating zone, and at least one second heating circuit located only in the main heating zone; the first heating circuit and the second heating circuit are independent of each other.

[0057] In the embodiment of the present application, the use scenario of the safety belt device needs to be first clarified. The safety belt device is arranged on the automobile seat 01 through cooperation with the winding device and the guide structure, and is used for fixing the passenger sitting on the automobile seat 01. The automobile seat 01 includes a seat cushion and a backrest. The guide structure includes a seat cushion guide plate 02 arranged at the seat cushion and a shoulder guide plate (the shoulder guide plate further includes a backrest guide plate 03 arranged at the backrest and a B column guide plate 07 arranged at the B column of the vehicle body). Similarly, the winding device is generally arranged inside the automobile seat 01 or the vehicle body framework (for example, the B column), and includes a seat cushion winder 2 and a shoulder winder (the shoulder winder corresponds to a backrest winder 3 and a B column winder 7). However, the specific guide structure and winding device selection and position design need to be confirmed in combination with the form of the safety belt and the installation scene (front seat or rear seat), which will be described in detail below, and will not be repeated here. Generally, the seat cushion guide plate 02 is arranged on the side of the seat cushion, the backrest guide plate 03 is arranged at the position close to the top of the backrest, and the B column guide plate 07 is arranged at the position matched with the height of the automobile seat 01 at the top of the B column. The seat cushion winder 2 is located inside the seat cushion of the automobile, and the shoulder winder is arranged according to its specific type, which can be specifically referred to the structure shown in Figures 8-11 In addition, the through holes are formed in the seat cushion guide plate 02, the backrest guide plate 03 and the B column guide plate 07, and the safety belt is arranged in the through holes, so as to provide guidance for the sliding of the safety belt by the seat cushion guide plate 02, the backrest guide plate 03 and the B column guide plate 07.

[0058] Specifically, the safety belt device includes a safety belt body 1, and a heating assembly 5 is fixed on the safety belt body 1. In order to avoid damage to the heating assembly 5 inside the safety belt body 1 caused by the frequent sliding of the lock tongue 4 on the safety belt body 1, the lock tongue 4 is fixedly arranged on the safety belt body 1 in the embodiment of the present application, and the safety belt body 1 is a hollow structure. The heating assembly 5 can be arranged in the hollow space. After the lock catch power supply 6 is inserted with the lock tongue 4, the lock tongue 4 supplies power to the heating assembly 5, so as to realize the function of heating the safety belt body 1 by the heating assembly 5.

[0059] Further, refer to Figure 12If only one independent heating circuit is arranged alone, the safety belt body 1 loses the heating function when the independent heating circuit fails, so in the embodiment of the application, the safety belt body 1 at least includes one main heating area and one auxiliary heating area, and at least one first heating circuit in the heating assembly 5 is arranged in the main heating area and the auxiliary heating area, which is equivalent to giving the safety belt body 1 a relatively complete large-area heating area; in addition, the heating assembly 5 further includes a second heating circuit located only in the main heating area, the area of the second heating circuit is smaller, but since the position of the main heating area is the core position of the entire safety belt body 1 contacting the passenger (for example, the waist, abdomen or shoulder position, etc.), by arranging a second heating circuit in the main heating area, the harsh condition that the heating assembly 5 cannot provide heating function once damaged can be effectively resolved. In this way, the two independently arranged first heating circuit and second heating circuit can make the heating assembly 5 have more fault tolerance, when one circuit fails or is damaged, the other heating circuit can still work, improving the experience of the driver and passenger.

[0060] In a preferred embodiment, as shown in Figure 1 the safety belt device is a two-point safety belt, the winding device is a seat cushion winder 2, and the guide structure is a seat cushion guide plate 02.

[0061] One end of the safety belt body 1 is connected with the seat cushion winder 2, and the other end passes through the seat cushion guide plate 02 and is fixedly provided with a lock tongue 4.

[0062] The main heating area is a first main heating area 11, and the auxiliary heating area is a first auxiliary heating area 12.

[0063] The first main heating area 11 is configured to be located between the lock tongue 4 and the seat cushion guide plate 02 when the safety belt device is in the first state, and the first auxiliary heating area 12 is configured to be located between the seat cushion guide plate 02 and the seat cushion winder 2 when the safety belt device is in the first state.

[0064] The first heating circuit includes at least one first sub-heating circuit located in the first main heating area and the first auxiliary heating area, and the second heating circuit includes at least one second sub-heating circuit located only in the first main heating area.

[0065] Specifically, when the type of the safety belt device is a two-point safety belt, the retraction device only includes the seat cushion retractor 2, and the guide structure also corresponds to a seat cushion guide plate 02. In this structure, the safety belt body 1 can be stored in the seat cushion retractor 2, and when the lock tongue 4 is inserted into the lock catch extractor 6 on the other side of the seat cushion, the safety belt body 1 can be pulled out of the seat cushion retractor 2. At this time, the safety belt device is in the first state, i.e., the state of the car seat being unoccupied, and the lock tongue 4 is inserted into the lock catch extractor 6.

[0066] Further, when the safety belt device is in the first state, the first main heating area 11 is configured to be the area where the safety belt body 1 is located between the lock tongue 4 and the seat cushion guide plate 02, which is equivalent to the area close to the human waist when a passenger is seated on the seat. The first auxiliary heating area 12 is configured to be the area where the safety belt body 1 is located between the seat cushion guide plate 02 and the seat cushion retractor 2, which is equivalent to the area that is close to the human waist according to the body shape of the passenger when a passenger is seated on the seat. One part is retained in the seat cushion retractor 2 to meet the heating needs of passengers with larger body shapes. Therefore, in addition to the first main heating area, a second sub-heating circuit is additionally provided, and the first main heating area and the first auxiliary heating area are also provided with a first sub-heating circuit. Two independent circuits can ensure that the part close to the human body in the first auxiliary heating area 12 can be heated by the first sub-heating circuit, and on the other hand, when the first heating circuit fails due to frequent pulling, the second sub-heating circuit can remain in working condition to continue heating the human waist.

[0067] In a preferred embodiment, as shown in Figure 2 the lock tongue 4 is arranged adjacent to the seat cushion guide plate 02 when the safety belt device is in the second state.

[0068] The first main heating area 11 is configured to be the area where the safety belt body 1 is located between the lock tongue 4 and the seat cushion guide plate 02 when the safety belt device is in the first state, and the area where the safety belt body 1 is located between the seat cushion guide plate 02 and the seat cushion retractor 2 when the safety belt device is in the second state.

[0069] Based on the foregoing description of the first state, the second state here is that no one is sitting on the seat, the lock tongue 4 is not inserted with the lock catch power supply 6, the safety belt body 1 is reeled in the seat cushion reel 2, and the lock tongue 4 is adjacent to the seat cushion guide plate 02. In this state, the first main heating area 11 is configured to be located between the lock tongue 4 and the seat cushion guide plate 02 when the safety belt device is in the first state, and to be located between the seat cushion guide plate 02 and the seat cushion reel 2 when the safety belt device is in the second state. When the safety belt body 1 is extracted, the first main heating area 11 also covers the waist and abdomen of the passenger sitting on the seat, and the first and second sub-heating circuits can be used to heat the waist and abdomen of the passenger sitting on the seat.

[0070] In a preferred embodiment, as shown in Figure 3 and Figure 4 The safety belt device is a three-point safety belt, the reeling device includes a seat cushion reel 2 and a shoulder reel, and the guide structure includes a seat cushion guide plate 02 and a shoulder guide plate.

[0071] One end of the safety belt body 1 is connected with the seat cushion reel 2, and the other end is sequentially connected with the seat cushion guide plate 02, the shoulder guide plate, and the shoulder reel, and the lock tongue 4 is arranged between the seat cushion guide plate 02 and the shoulder guide plate.

[0072] The main heating area includes a first main heating area and a second main heating area, and the auxiliary heating area includes a first auxiliary heating area and a second auxiliary heating area.

[0073] The first main heating area is configured to be located between the lock tongue 4 and the seat cushion guide plate 02 when the safety belt device is in the first state. The first auxiliary heating area is configured to be located between the seat cushion guide plate 02 and the seat cushion reel 2 when the safety belt device is in the first state. The second main heating area is configured to be located between the lock tongue 4 and the shoulder guide plate when the safety belt device is in the first state. The second auxiliary heating area is configured to be located between the shoulder guide plate and the shoulder reel when the safety belt device is in the first state.

[0074] The first heating circuit includes at least one first sub-heating circuit located in the first main heating area 11 and the first auxiliary heating area 12, and at least one second sub-heating circuit located only in the second main heating area 13 and the second auxiliary heating area 14.

[0075] The second main heating circuit includes at least one third sub-heating circuit located only in the first main heating area 11, and / or at least one fourth sub-heating circuit located only in the second main heating area 13.

[0076] Specifically, when the safety belt device is a three-point safety belt, for the rear seat, generally, the retraction device includes a seat cushion retractor 2 and a backrest retractor 3 respectively arranged at the seat cushion and the backrest, which can be specifically referred to as Figure 3 Correspondingly, the guide structure also includes a seat cushion guide plate 02 and a backrest guide plate 03, one end of the safety belt body 1 is connected with the seat cushion retractor 2, and the other end is sequentially connected with the backrest retractor 3 through the seat cushion guide plate 02 and the backrest guide plate 03, so that when the safety belt body 1 is pulled through the lock tongue 4, the safety belt body 1 can be pulled out from the seat cushion retractor 2 and the backrest retractor 3 to contact the human body until the lock tongue 4 is plugged with the lock catch 6, and the fixation of the passenger is completed.

[0077] Further, when the safety belt device is in the first state, the first main heating area 11 is configured to be the area of the safety belt body 1 between the lock tongue 4 and the seat cushion guide plate 02, which is equivalent to the area contacting the human waist when the passenger is on the seat; and the second main heating area 13 is configured to be the area of the safety belt body 1 between the backrest guide plate 03 and the backrest retractor 3, which is equivalent to the area contacting the human shoulder, and only the third sub-heating circuit and the fourth sub-heating circuit in the first main heating area 11 and the second main heating area 13 can provide heating guarantee for the first main heating area 11 and the second main heating area 13, and when the second sub-heating circuit and / or the first sub-heating circuit fails, it will not affect the two necessary areas contacting the human body; of course, the third sub-heating circuit and the fourth sub-heating circuit can also be set as needed, for example, only one heating circuit is additionally provided at the waist or only one heating circuit is additionally provided at the shoulder, which is not specially limited here.

[0078] Since the division of each heating area is based on the safety belt device being in the first state, when the passenger actually sits on the car seat, the first auxiliary heating area 12 and the second auxiliary heating area 14 will also contact the human body according to the passenger's body type, so the first sub-heating circuit and the second sub-heating circuit are also provided on the first auxiliary heating area 12 and the second auxiliary heating area 14 to ensure the comprehensiveness of heating.

[0079] It should be noted that, regardless of the arrangement of each heating circuit, the arrangement order of the first auxiliary heating zone 12, the first main heating zone 11, the second main heating zone 13 and the second auxiliary heating zone 14 is followed, so the first sub-heating circuit can be arranged on the first auxiliary heating zone 12 and the first main heating zone 11, and the second sub-heating circuit can be arranged on the second auxiliary heating zone 14 and the second main heating zone 13; and the first sub-heating circuit and the second sub-heating circuit are arranged in parallel, and the third sub-heating circuit and the fourth sub-heating circuit are also arranged in parallel, so that each heating circuit has an independent heating function, and even if a certain heating circuit fails, other heating circuits can still work normally, and the heating function of the entire safety belt device will not be paralyzed.

[0080] In addition, there is also a case, see Figure 4 For the front seats, the backrest retractor 3 can be replaced by the B-pillar retractor 7, and the corresponding B-pillar retractor 7 can be arranged on the side of the B-pillar away from the car seat 01, at this time the safety belt body 1 is connected to the seat cushion retractor 2 at one end, and the other end passes through the seat cushion guide plate 02 and the B-pillar guide plate 07 in turn, and is connected to the B-pillar retractor 7; Similarly, at this time the second main heating zone is configured such that when the safety belt device is in the first state, the safety belt body 1 is located in the area between the latch 4 and the B-pillar guide plate 07; The second auxiliary heating zone is configured such that when the safety belt device is in the first state, the safety belt body 1 is located in the area between the B-pillar guide plate 07 and the B-pillar retractor 7, and the rest will not be described.

[0081] As for the actual design of each circuit, please refer to Figure 7 The heating assembly 5 used in the embodiments of the present application can be in the form of a heating pad, and the heating wire is fixed on the substrate by sewing, bonding, weaving or pressing, or a sheet-shaped resistance type heating element such as a metal sheet or a graphene film is pasted on the safety belt body to form a heating pad. The substrate can be a non-woven fabric, a woven fabric, a thin sponge layer or a composite flexible material layer, which is then fixed in the hollow part of the safety belt body 1. Of course, the heating wire or the metal sheet or the graphene film can also be directly fixed on the safety belt body 1, and the specific limitation is not special. The heating assembly 5 includes a plurality of resistance wire circuits (circuit a corresponds to the third sub-heating circuit, circuit b corresponds to the first sub-heating circuit, circuit c corresponds to the fourth sub-heating circuit, and circuit d corresponds to the second sub-heating circuit), each resistance wire circuit corresponds to the arrangement design of each heating circuit described above; The circuit switch is arranged in the lock catch power taker 6, which is used to control the on-off of the heating circuit inside the heating assembly 5; Here, the circuit switch also needs to be conductive with the external connector through the conductive element, which can be a wire harness or a terminal structure, and the specific limitation is not special. One end of the connector can be connected to the corresponding controller, and when the latch and the lock catch power taker 6 are plugged in, the heating assembly 5 can be powered.

[0082] In a preferred embodiment, as shown in Figure 5 and Figure 6 , the safety belt device is in the second state, the lock tongue 4 corresponds to the upper part of the car seat 01;

[0083] The first main heating zone 11 is configured to be located between the lock tongue 4 and the cushion guide plate 02 when the safety belt device is in the first state, and the safety belt body 1 is still located in the area between the lock tongue 4 and the cushion guide plate 02 when the safety belt device is in the second state.

[0084] The second main heating zone is configured to be located between the lock tongue 4 and the shoulder guide plate when the safety belt device is in the first state, and the safety belt body 1 is located in the area between the shoulder guide plate and the shoulder retractor when the safety belt device is in the second state.

[0085] Specifically, taking the rear seat as an example, when the safety belt device is a three-point safety belt, the second state here also refers to the state that there is no passenger sitting on the car seat, at this time the lock tongue 4 is located at the upper part of the car seat 01 close to the backrest guide plate 03 (see Figure 5 ), the first main heating zone 11 is configured to be located between the lock tongue 4 and the cushion guide plate 02 when the safety belt device is in the first state, and the safety belt body 1 is still located in the area between the lock tongue 4 and the cushion guide plate 02 when the safety belt device is in the second state, which means that this part of the area is also used for heating the waist and abdomen of the human body. At the same time, it can be found that when the passenger sits on the car seat 01, the lock buckle extractor 6 and the lock tongue 4 are inserted, a part of the safety belt body 1 will be bent at the cushion guide plate 02, but the first main heating zone 11 is located between the lock tongue 4 and the cushion guide plate 02 regardless of whether the lock tongue 4 is inserted with the lock buckle extractor 6, that is, whether there is a passenger sitting on the car seat 01, the first main heating zone 11 will not be bent at the cushion guide plate 02. Such design greatly reduces the damage to the heating circuit installed only inside the first main heating zone 11, and improves the reliability of the heating assembly 5 of the installed belt device.

[0086] Further, the same as the first main heating area 11, a second main heating area 13 is also included, which will not be bent at the backrest guide plate 03 regardless of whether the lock tongue 4 is plugged with the lock catch power receiver 6, which means that the lock tongue 4 will be pulled out from the backrest roller 3 as a whole when plugging, and after plugging, the second main heating area 13 will completely cross the backrest guide plate 03 and contact the human shoulder; and after unplugging, the second main heating area 13 will also be recovered, but will not be rolled into the backrest roller 3, so it will not be bent. Such a design will also reduce the loss of the heating circuit in the second main heating area 13, effectively protecting the heating function of the safety belt device.

[0087] In a preferred embodiment, as shown in Figure 8 and Figure 9 , when the safety belt device is in the second state, the lock tongue 4 is arranged in the middle of the car seat 01;

[0088] The first main heating area is configured such that when the safety belt device is in the first state, the safety belt body 1 is located between the lock tongue 4 and the cushion guide plate 02, and when the safety belt device is in the second state, the safety belt body 1 is still located in the area between the lock tongue 4 and the cushion guide plate 02;

[0089] The second main heating area is configured such that when the safety belt device is in the first state, the safety belt body 1 is located between the lock tongue 4 and the shoulder guide plate, and when the safety belt device is in the second state, the safety belt body 1 is still located in the area between the lock tongue 4 and the shoulder guide plate.

[0090] Specifically, when the safety belt device is a three-point safety belt, the second state here also refers to the state that no passenger is seated on the car seat, at which time the lock tongue 4 is located in the middle of the car seat 01, between the backrest guide plate 03 / B-pillar guide plate 07 and the cushion guide plate 02 (see Figure 9 ); Similarly, taking the rear seat as an example, at this time, the first main heating area is the same as the above configuration, which is also located between the lock tongue 4 and the cushion guide plate 02 regardless of whether the lock tongue 4 is plugged with the lock catch power receiver 6, so that it will not be bent at the cushion guide plate 02; The difference is that, since the lock tongue 4 is located in the middle of the car seat 01 at this time, the lock tongue 4 is away from the backrest guide plate 03, so at this time the second main heating area is configured to be located between the lock tongue 4 and the backrest guide plate 03 regardless of whether the lock tongue 4 is plugged with the lock catch power receiver 6, which also avoids the circuit inside the second main heating area from being bent at the backrest guide plate 03.

[0091] It should be noted that based on the above, when the shoulder guide plate is the B-pillar guide plate 07, the configuration of the second heating zone 13 here also becomes the area where the seat belt body 1 is located between the latch 4 and the B-pillar guide plate 07 when the seat belt device is in the first state, and the seat belt body 1 is still located between the latch 4 and the B-pillar guide plate 07 when the seat belt device is in the second state, and the rest is not repeated.

[0092] In a preferred embodiment, as shown in Figure 10 and Figure 11 , when the seat belt device is in the second state, the latch 4 is arranged corresponding to the lower part of the car seat 01;

[0093] The first main heating zone is configured to be located in the area between the latch 4 and the cushion guide plate 02 when the seat belt device is in the first state, and the seat belt body 1 is located between the cushion guide plate 02 and the cushion retractor 2 when the seat belt device is in the second state.

[0094] The second main heating zone is configured to be located in the area between the latch 4 and the shoulder guide plate when the seat belt device is in the first state, and the seat belt body 1 is still located in the area between the latch 4 and the shoulder guide plate when the seat belt device is in the second state.

[0095] Specifically, when the seat belt device is a three-point seat belt, the second state here also refers to the state that there is no passenger sitting on the car seat, at this time the latch 4 is located at the lower part of the car seat 01, which is equivalent to the position close to the cushion guide plate 02, which can be seen from Figure 10 At this time, the second main heating zone 13 is the same as the above configuration, which is also located in the area between the latch 4 and the B-pillar guide plate 07 regardless of whether the latch 4 is plugged with the latch power taker 6; the difference is that since the latch 4 is located at the lower part of the car seat 01 at this time, the first main heating zone 11 here is also not bent at the cushion guide plate 02 regardless of whether the latch 4 is plugged with the latch power taker 6, which is equivalent to being pulled out from the seat belt body 1 as a whole by the latch 4 when plugging, and after plugging, the first main heating zone 11 will completely cross the cushion guide plate 02 and contact the human waist; after unplugging, the first main heating zone 11 will also be recovered, but will not be wound into the backrest retractor 3 / B-pillar retractor 7, so it will not be bent.

[0096] Based on the above description, in order to further optimize the arrangement of the heating area, ensure that even if one heating loop is damaged, the other several heating loops can still work to provide heating function for passengers, the application proposes to additionally set a heating loop that will not be bent in the first main heating area 11 and the second main heating area 13. The arrangement idea can refer to the aforementioned multiple ways, and the specific needs should be set in combination with the actual application situation. In order to ensure the overall heating function, the first main heating area and the first auxiliary heating area are also provided with a first sub-heating loop, and the second main heating area and the second auxiliary heating area are also provided with a second sub-heating loop, so there is no need to worry about whether the seat belt body without heating function will come into contact with the human body. However, due to the large coverage area of the first sub-heating loop and the second sub-heating loop, it is easy to bend at the corresponding guide plate, so the design of the third sub-heating loop and the fourth sub-heating loop can well solve this problem.

[0097] In a preferred embodiment, as shown in Figure 7 and Figure 13 The safety belt body 1 is provided with at least two limiting members 9, and the two limiting members 9 are respectively arranged on the two sides of the lock tongue 4, which are used to fix the lock tongue 4.

[0098] Specifically, in the embodiment of the application, the lock tongue 4 is fixedly connected with the safety belt body 1. In order to limit the movement of the lock tongue 4, two limiting members 9 are arranged on the safety belt body 1 on the two sides of the lock tongue 4, so as to ensure the stable fixation of the lock tongue 4 and prevent the lock tongue 4 from moving during the process of frequently pulling the lock tongue 4 and the lock catch 04.

[0099] It should be noted that the first auxiliary heating area 12 and the second auxiliary heating area 14 near the seat cushion retractor 2 and the shoulder retractor have corresponding heating cutoff edges. The heating cutoff edges are used to position the heating area in each auxiliary heating area, and also used to position the resistance wire inside.

[0100] Embodiment 2

[0101] Based on the automobile seat belt device with heating function of embodiment 1, the application proposes an automobile seat. The automobile seat 01 is provided with a mounting belt device. At least one main heating area and one auxiliary heating area are arranged on the safety belt body 1 in the mounting belt device. In addition to the first heating loop arranged in the main heating area and the auxiliary heating area, a second heating loop is additionally arranged in the main heating area. Therefore, even if one of the heating loops fails or is damaged, the other heating loop can still provide heating, thereby improving the riding experience of the occupant.

[0102] The above description is only the preferred embodiment of the present application and the explanation of the technical principles. It should be understood by those skilled in the art that the scope of the protection of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features. It should also cover other technical solutions formed by the combinations of the above technical features or their equivalent features without departing from the concept of the present application. For example, the technical solutions formed by the mutual replacements of the above features and the technical features disclosed in the present application (but not limited to) with similar functions.

Claims

1. A car seat safety belt device with heating function, a guide structure is arranged on the car seat (01), characterized in that, The safety belt device comprises: A safety belt body (1) is connected with a winding device through a guide structure at least at one end, a lock tongue (4) is fixedly arranged on the safety belt body (1), and a heating assembly (5) is arranged inside the safety belt body (1), the heating assembly (5) is electrically connected with the lock tongue (4); A lock catch power extractor (6) is used for plugging with the lock tongue (4) and supplying power to the heating assembly (5) through the lock tongue (4); The safety belt body (1) comprises at least one main heating area and one auxiliary heating area, the heating assembly (5) comprises at least one first heating loop located in the main heating area and the auxiliary heating area, and at least one second heating loop located in the main heating area only; the first heating loop and the second heating loop are independent of each other.

2. The automobile seat belt device with a heating function according to claim 1, characterized in that, The safety belt device is a two-point safety belt, the winding device is a seat cushion winding device (2), and the guide structure is a seat cushion guide plate (02); One end of the safety belt body (1) is connected with the seat cushion winding device (2), and the other end passes through the seat cushion guide plate (02) and is fixedly provided with the lock tongue (4); The main heating area is a first main heating area (11), and the auxiliary heating area is a first auxiliary heating area (12); The first main heating area (11) is configured to be located in a region between the lock tongue (4) and the seat cushion guide plate (02) when the safety belt device is in a first state, and the first auxiliary heating area (12) is configured to be located in a region between the seat cushion guide plate (02) and the seat cushion winding device (2) when the safety belt device is in the first state; The first heating loop comprises at least one first sub-heating loop located in the first main heating area (11) and the first auxiliary heating area (12), and the second heating loop comprises at least one second sub-heating loop located in the first main heating area (11) only.

3. The automobile seat belt device with a heating function according to claim 2, characterized in that, When the safety belt device is in a second state, the lock tongue (4) is arranged adjacent to the seat cushion guide plate (02); The first main heating area (11) is configured to be located between the lock tongue (4) and the seat cushion guide plate (02) when the safety belt device is in the first state, and to be located in a region between the seat cushion guide plate (02) and the seat cushion winding device (2) when the safety belt device is in the second state.

4. The automobile seat belt device with a heating function according to claim 1, characterized in that, The safety belt device is a three-point safety belt, the winding device comprises a seat cushion winding device (2) and a shoulder winding device, and the guide structure comprises a seat cushion guide plate (02) and a shoulder guide plate; One end of the safety belt body (1) is connected with the seat cushion winding device (2), the other end sequentially passes through the seat cushion guide plate (02) and the shoulder guide plate, and is connected with the shoulder winding device, and the lock tongue (4) is arranged between the seat cushion guide plate (02) and the shoulder guide plate; The main heating zone comprises a first main heating zone (11) and a second main heating zone (13), and the auxiliary heating zone comprises a first auxiliary heating zone (12) and a second auxiliary heating zone (14); The first main heating zone (11) is configured to locate the seat belt body (1) between the lock tongue (4) and the cushion guide plate (02) when the seat belt device is in the first state; the first auxiliary heating zone is configured to locate the seat belt body (1) between the cushion guide plate (02) and the cushion retractor (2) when the seat belt device is in the first state; the second main heating zone is configured to locate the seat belt body (1) between the lock tongue (4) and the shoulder guide plate when the seat belt device is in the first state; and the second auxiliary heating zone is configured to locate the seat belt body (1) between the shoulder guide plate and the shoulder retractor when the seat belt device is in the first state; The first heating circuit comprises at least one first sub-heating circuit located in the first main heating zone and the first auxiliary heating zone, and at least one second sub-heating circuit located only in the second main heating zone and the second auxiliary heating zone; The second main heating circuit comprises at least one third sub-heating circuit located only in the first main heating zone, and / or at least one fourth sub-heating circuit located only in the second main heating zone.

5. The automobile seat belt device with a heating function according to claim 4, characterized in that, The retractor is arranged inside the automobile seat (01) or the vehicle body frame.

6. The automobile seat belt device with a heating function according to claim 5, characterized in that, When the seat belt device is in the second state, the lock tongue (4) is arranged corresponding to the middle part of the automobile seat (01); The first main heating zone (11) is configured to locate the seat belt body (1) between the lock tongue (4) and the cushion guide plate (02) when the seat belt device is in the first state, and the seat belt body (1) is still located in the region between the lock tongue (4) and the cushion guide plate (02) when the seat belt device is in the second state; The second main heating zone (13) is configured to locate the seat belt body (1) between the lock tongue (4) and the shoulder guide plate when the seat belt device is in the first state, and the seat belt body (1) is located in the region between the shoulder guide plate and the shoulder retractor when the seat belt device is in the second state.

7. The automobile seat belt device with a heating function according to claim 5, characterized in that, When the seat belt device is in the second state, the lock tongue (4) is arranged corresponding to the middle part of the automobile seat (01); The first main heating zone (11) is configured to locate the seat belt body (1) between the lock tongue (4) and the cushion guide plate (02) when the seat belt device is in the first state, and the seat belt body (1) is still located in the region between the lock tongue (4) and the cushion guide plate (02) when the seat belt device is in the second state; The second main heating area (13) is configured to, when the safety belt device is in the first state, the safety belt body (1) is located between the lock tongue (4) and the shoulder guide plate, and when the safety belt device is in the second state, the safety belt body (1) is still located in the area between the lock tongue (4) and the shoulder guide plate.

8. The automobile seat belt device with a heating function according to claim 5, characterized in that, When the safety belt device is in the second state, the lock tongue (4) corresponds to the lower part of the automobile seat (01); The first main heating area (11) is configured to, when the safety belt device is in the first state, the safety belt body (1) is located between the lock tongue (4) and the cushion guide plate (02), and when the safety belt device is in the second state, the safety belt body (1) is located in the area between the cushion guide plate (02) and the cushion retractor (2); The second main heating area (13) is configured to, when the safety belt device is in the first state, the safety belt body (1) is located between the lock tongue (4) and the shoulder guide plate, and when the safety belt device is in the second state, the safety belt body (1) is still located in the area between the lock tongue (4) and the shoulder guide plate.

9. The automobile seat belt device with a heating function according to claim 4, characterized in that, At least two limiting pieces (9) are arranged on the safety belt body (1), two limiting pieces (9) are arranged on both sides of the lock tongue (4) respectively, for fixing the lock tongue (4).

10. An automotive seat characterized by comprising: The automobile seat safety belt device with heating function has the advantages that the safety belt body (1) is heated by the first main heating area (11) and the second main heating area (13), and the safety belt body (1) is fixed by the lock tongue (4) and the limiting pieces (9), so that the safety belt body (1) is not easy to move, and the safety belt body (1) is not easy to be damaged.

Images