Novel passenger sensor protection structure and automobile seat passenger occupancy sensor

Abstract

The utility model discloses a novel passenger sensor protection structure and an automobile seat passenger occupancy sensor, and relates to the technical field of automobile seats. The protection structure comprises a protection structure body, and the protection structure body is used for protecting the connection part of the sensing sheet-making structure and the electric connection assembly. The protection structure further comprises at least one protection part, at least one protruding part is arranged on the side, close to the sensing sheet-making structure, of the protection part, and the protruding part is arranged to avoid the circuit structure in the sensing sheet-making structure and used for dispersing force acting on the circuit structure when the joint of the sensing sheet-making structure and the electric connection assembly is subjected to external force. The structure can effectively disperse the acting force acting on the internal circuit structure of the sensing sheet-making structure, and ensures the normal operation and use of the passenger sensor.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of automobile seats, and in particular to a novel occupant sensor protection structure and an automobile seat occupant occupancy sensor. Background Art

[0002] At present, vehicles such as cars are equipped with occupant occupancy sensors, which automatically detect the presence of drivers and passengers on vehicle seats and can distinguish between objects and human bodies, and are used to provide seat occupancy signals for various devices, such as seat belt unfastened reminder systems. The occupant sensor consists of two major parts: the film and the wiring harness. The joints are usually protected by rubber blocks, forming a connection structure between the rubber block and the film, and between the rubber block and the wiring harness.

[0003] However, when the occupant sensor is assembled to the whole chair or when a person sits on the seat, the connection structure is usually subjected to force, and the internal circuit is easily damaged by a small angle bend at the edge of the connection structure, affecting the detection function of the occupant sensor. Therefore, the present application proposes a new type of occupant sensor protection structure to solve the above problem. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a novel occupant sensor protection structure and a car seat occupant occupancy sensor.

[0005] In a first aspect, the present application provides a novel occupant sensor protection structure, comprising:

[0006] A protective structure body, the protective structure body is used to protect the connection between the sensor chip structure and the electrical connection component;

[0007] The protection structure body includes at least one protection part, which is located at the connection between the sensing film structure and the electrical connection component; at least one protrusion is provided on the side of the protection part close to the sensing film structure, and the protrusion is arranged to avoid the circuit structure in the sensing film structure, and is used to disperse the force acting on the circuit structure when the connection between the sensing film structure and the electrical connection component is subjected to external force.

[0008] According to the technical solution provided in the present application, the raised portion and the protective portion are integrally formed.

[0009] According to the technical solution provided by the present application, at least one avoidance area is formed on one side of the protection portion close to the sensor film structure, and the avoidance area and the protrusion are formed in cooperation with each other; the avoidance area is arranged corresponding to the circuit structure in the sensor film structure;

[0010] Wherein, the circuit structure includes a plurality of circuits arranged in the sensor chip structure.

[0011] According to the technical solution provided in this application, the protection structure body includes two protrusions and the avoidance area located between the two protrusions;

[0012] The length of the avoidance area in the first direction is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between the two circuits with the largest interval along the first direction in the circuit structure; the first direction is perpendicular to the circuit.

[0013] According to the technical solution provided by the present application, the protection structure body includes a plurality of raised portions and avoidance areas that are sequentially spaced and distributed; the raised portion is located between two adjacent circuits;

[0014] The avoidance areas are arranged corresponding to the respective circuits.

[0015] According to the technical solution provided in the present application, the protection structure body includes a protrusion and avoidance areas located on both sides of the protrusion;

[0016] The protrusion is located between two adjacent circuits, and the avoidance area is arranged corresponding to each circuit.

[0017] According to the technical solution provided in the present application, the protective structure body includes an avoidance area and the protrusions located on both sides of the avoidance area;

[0018] The avoidance area is an arc-shaped structure, the opening of the arc-shaped structure is arranged toward the sensor film structure, the distance between the two end points of the arc-shaped structure is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between the two circuits with the largest interval along the first direction in the circuit structure; the first direction is perpendicular to the circuit.

[0019] According to the technical solution provided in the present application, the protrusion and the avoidance area are smoothly connected, and the connection point is an arc segment.

[0020] In the second aspect, the present application provides a car seat occupant occupancy sensor, which should have the new type of occupant sensor protection structure described above, and also include a sensor film structure and an electrical connection component, wherein a circuit structure is provided in the sensor film structure, and the electrical connection component is electrically connected to the circuit structure, and the protection structure body is arranged at the connection between the sensor film structure and the electrical connection component.

[0021] According to the technical solution provided in the present application, the electrical connection component is a control wiring harness or a combination of the control wiring harness and a resistor.

[0022] In summary, the present technical scheme specifically discloses a new type of occupant sensor protection structure and a car seat occupant occupancy sensor, wherein the new type of occupant sensor protection structure comprises: a protection structure body, which is used to protect the connection between the sensor film structure and the electrical connection component; the protection structure body comprises at least one protection part, which is located at the connection between the sensor film structure and the electrical connection component; at least one protrusion is provided on the side of the protection part close to the sensor film structure, and the protrusion avoids the circuit structure setting in the sensor film structure, and is used to disperse the force acting on the circuit structure when the connection between the sensor film structure and the electrical connection component is subjected to external force.

[0023] When the occupant sensor is assembled to the entire chair or when a person is sitting on the seat, the rubber blocks at the sensor film structure and the control wiring harness are usually subjected to force, causing the internal circuit of the sensor film structure located at the edge of the rubber block to be easily damaged by small-angle bending. In the present application, the raised portion of the protective structure provided on the side of the protective portion close to the sensor film is used to disperse the force acting on the circuit structure when the sensor film structure is subjected to external force, thereby effectively protecting the circuit structure and ensuring the normal use of the occupant sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the first structure of a new type of occupant sensor protection structure.

[0026] Figure 2 This is a schematic diagram of the bending condition of the new occupant sensor protection structure in the first structure.

[0027] Figure 3 This is a schematic diagram of the second structure of the new occupant sensor protection structure.

[0028] Figure 4 Schematic diagram of the bending condition of the new occupant sensor protection structure in the second structure.

[0029] Figure 5 This is a schematic diagram of the third structure of the new occupant sensor protection structure.

[0030] Figure 6 Schematic diagram of the bending condition of the new occupant sensor protection structure in the third structure.

[0031] Figure 7 This is a schematic diagram of the fourth structure of the new occupant sensor protection structure.

[0032] Figure 8Schematic diagram of the bending condition of the new occupant sensor protection structure in the fourth structure.

[0033] Fig. 9 This is a schematic diagram of the fifth structure of the new occupant sensor protection structure.

[0034] Fig.10 Schematic diagram of the bending condition of the new occupant sensor protection structure in the fifth structure.

[0035] Fig.11 This is a sixth structural schematic diagram of the new occupant sensor protection structure.

[0036] Fig.12 Schematic diagram of the bending condition of the new occupant sensor protection structure in the sixth structure.

[0037] Fig.13 This is a schematic diagram of the seventh structure of the new occupant sensor protection structure.

[0038] Fig.14 Schematic diagram of the bending condition of the new occupant sensor protection structure in the seventh structure.

[0039] Fig.15 This is a schematic diagram of the eighth structure of the new occupant sensor protection structure.

[0040] Fig.16 Schematic diagram of the bending condition of the new occupant sensor protection structure in the eighth structure.

[0041] Fig.17 This is a schematic diagram of the first assembly of the new occupant sensor protection structure.

[0042] Fig.18 This is a second assembly schematic diagram of the new occupant sensor protection structure.

[0043] Fig.19 This is a schematic diagram of the third assembly of the new occupant sensor protection structure.

[0044] Fig. 20 This is a schematic diagram of the fourth assembly of the new occupant sensor protection structure.

[0045] Numbers in the figure: 01, original protection structure body; 1, protection structure body; 11, protection part; 12, raised part; 13, avoidance area; 14, arc segment; 15, terminal; 2, sensor film structure; 21, circuit; 3, seat foam; 31, wire outlet hole; 4, control wiring harness; 5, resistor; 6, seat belt reminder. DETAILED DESCRIPTION

[0046] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] Example 1

[0049] Please refer to Figure 1 The schematic structural diagram of a novel occupant sensor protection structure provided by the present embodiment shown includes:

[0050] A protective structure body 1, which is used to protect the connection between the sensor chip structure 2 and the electrical connection component;

[0051] The protection structure 1 includes at least one protection portion 11, which is located at the connection between the sensing film structure 2 and the electrical connection component; at least one protrusion 12 is provided on the side of the protection portion 11 close to the sensing film structure 2, and the protrusion 12 is arranged to avoid the circuit structure in the sensing film structure 2, and is used to disperse the force acting on the circuit structure when the connection between the sensing film structure 2 and the electrical connection component is subjected to external force.

[0052] In this embodiment, the protection part 11 is generally made of PA material. Since the protection structure body 1 is arranged at the connection between the sensor film structure 2 and the electrical connection component, it can protect and insulate the connection between the sensor film structure 2 and the electrical connection component, and can also assist in increasing the connection stability between the sensor film structure 2 and the electrical connection component.

[0053] Next, in combination with the function of the protective structure body 1, the application background of the protective structure body 1 is introduced: since the occupant sensor generally includes two major parts, namely, the sensor film and the wiring harness, the connection part thereof is usually protected by the protective structure body 1, forming a connection structure between the protective structure body 1 and the sensor film structure 2 and the external electrical connection component. When the connection structure is in the state of being assembled to the whole chair, the connection structure is usually affected by external forces. For example, a small angle bend is generated during the assembly process or the external pressure is generated by a person sitting on the car seat, which can easily cause the circuit structure inside the sensor film structure 2 to be damaged at the bend boundary line (shown by the dotted line in each figure), thereby affecting the detection function of the occupant sensor.

[0054] In view of this, compared with the original protection structure body 01, the protection structure body 1 includes at least one protection portion 11. Figure 1From the perspective of the embodiment of the present invention, the protection portion 11 is located on the side edge parallel to the cross section of the protection structure 1 and the sensing film structure 2 along the first direction, and can be in contact with the region of the sensing film structure 2 that is prone to bending. Here, the first direction is the vertical direction. Specifically, at least one protrusion 12 is provided on the side of the protection portion 11 close to the sensing film structure 2. The protrusion 12 is integrally formed with the protection portion 11, and is arranged to avoid the circuit structure in the sensing film structure 2. When the sensing film structure 2 is subjected to external force, the force will be concentrated on the protrusion 12, effectively dispersing the force acting on the circuit structure. Figure 1 For example, the dotted line in the figure is the bending boundary line. When the sensing film structure 2 bends at the bending boundary line, the force is concentrated on the protrusion 12 that first contacts the sensing film structure 2, and the protrusion 12 just avoids the circuit structure setting, so the force acting on the circuit structure can be effectively dispersed, meeting the working requirements of the occupant sensor in different assembly environments.

[0055] In a preferred embodiment, if Figure 1-Figure 16 As shown, at least one avoidance area 13 is formed on one side of the protection portion 11 close to the sensor chip structure 2, and the avoidance area 13 and the protrusion 12 cooperate with each other to form; the avoidance area 13 is arranged corresponding to the circuit structure in the sensor chip structure 2;

[0056] The circuit structure includes a plurality of circuits 21 arranged in the sensor chip structure 2 .

[0057] First, for the protection portion 11, the avoidance area 13 and the protrusion 12 are formed by cooperation with each other. Generally, an avoidance area 13 is formed between two adjacent protrusions 12. The avoidance area 13 corresponds to the circuit structure setting, and is essentially set corresponding to the circuit 21 in the circuit structure.

[0058] In a preferred embodiment, if Figure 1-Figure 4 As shown, the protection structure body 1 includes two protrusions 12 and an avoidance area 13 located between the two protrusions 12;

[0059] The length of the avoidance area 13 in the first direction is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between the two circuits 21 with the largest interval in the circuit structure along the first direction; the first direction is perpendicular to the circuit 2.

[0060] Specifically, the two raised portions 12 and the avoidance area 13 between the two raised portions 12 form a “concave” shape, the two parts raised upwards are equivalent to the raised portions 12 , and the middle of the two raised portions is naturally the avoidance area 13 .

[0061] Among them, the avoidance area 13 needs to completely cover the circuit structure in order to provide comprehensive protection for the circuit structure, so the length of the avoidance area 13 in the first direction is greater than the distribution length of the circuit structure along the first direction; the distribution length refers to the distance value between the two circuits 21 with the largest interval along the first direction in the circuit structure.

[0062] In a preferred embodiment, if Figure 5-Figure 8 As shown, the protection structure body 1 includes a plurality of raised portions 12 and avoidance areas 13 that are sequentially spaced apart; the raised portion 12 is located between two adjacent circuits 21;

[0063] The avoidance areas 13 are provided corresponding to the respective circuits 21 .

[0064] Specifically, Figure 5 As for the structure shown, the raised portions 12 and the avoidance areas 13 that are distributed in sequence form an "E" shape, which is equivalent to being composed of three raised portions 12 and two avoidance areas 13 that are distributed in sequence, and the two avoidance areas 13 are correspondingly arranged on the corresponding circuits 21 (one avoidance area 13 may correspond to one circuit 21, or there may be multiple circuits 21 under one avoidance area 13); then in the actual design process, the total number of the raised portions 12 and avoidance areas 13 that are distributed in sequence needs to be specifically designed according to the circuit structure on the sensor film structure 2, and no special limitation is made here.

[0065] It should be noted that the avoidance area 13 also needs to satisfy that its length in the first direction is greater than the cross-sectional length of the corresponding circuit 21 in the first direction.

[0066] In a preferred embodiment, if Figure 9-12 As shown, the protection structure body 1 includes a protrusion 12 and avoidance areas 13 located on both sides of the protrusion 12;

[0067] The raised portion 12 is located between two adjacent circuits 21 , and the avoidance area 13 is provided corresponding to each circuit 21 .

[0068] Specifically, a protrusion 12 and the avoidance areas 13 located on both sides of the protrusion 12 form a "convex" shape. At this time, the protrusion 12 is located between two adjacent circuits 21; at this time, the force of the sensor film structure 2 is concentrated on the protrusion 12, thereby dispersing the force acting on the circuit 21 located under the avoidance area 13, thereby protecting the circuit of the occupant sensor from being damaged.

[0069] In a preferred embodiment, if Figure 13-Figure 16 As shown, the protective structure body 1 includes an avoidance area 13 and protrusions 12 located on both sides of the avoidance area 13;

[0070] The avoidance area 13 is an arc-shaped structure, the opening of the arc-shaped structure is set toward the second direction, and the distance between the two end points of the arc-shaped structure is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between the two circuits 21 with the largest interval in the circuit structure along the first direction.

[0071] Specifically, the avoidance area 13 with an arc-shaped structure and the raised portions 12 located on both sides of the avoidance area 13 form a structure similar to a "concave" shape, but the middle portion of the concave shape is an arc shape; at this time, in order to make the avoidance area 13 completely cover the circuit structure so as to provide comprehensive protection for the circuit structure, the distance between the two end points of the arc-shaped structure also needs to be greater than the distribution length of the circuit structure along the first direction.

[0072] In a preferred embodiment, the protrusion 12 and the escape area 13 merge smoothly, and the merged portion is an arc segment.

[0073] The raised portion 12 and the avoidance area 13 are smoothly connected, so a rounded structure with a certain arc segment is formed at each connection. This design can also disperse the stress of the circuit part acting on the middle of the sensor chip structure 2.

[0074] In a preferred embodiment, the protection structure 1 includes a plurality of protection portions 11;

[0075] The raised portion 12 in each protection portion 11 is arranged to avoid the circuit 21, and the avoidance area 13 is arranged corresponding to the circuit 21;

[0076] The length of the protection structure 1 in the first direction is greater than the length of the sensor chip structure 2 in the first direction.

[0077] Specifically, based on the aforementioned description of the specific form of the protection part 11, the protection structure 1 can be provided with a plurality of protection parts 11, and the plurality of protection parts 11 can be a combination of the specific forms of the aforementioned plurality of protection parts 11 or can be continuous use of the same form according to the specifications of the current sensor manufacturing structure 2. There is no special limitation on the specific form, but when used in combination, the avoidance areas 13 of each of the two adjacent protection parts 11 and the raised portion 12 of the other protection part 11 are generally connected to each other.

[0078] It should be noted that, since the protection structure body 1 is disposed at the connection between the sensor film structure 2 and the external control harness 4 when in use, the length of the protection structure 1 in the first direction will be relatively greater than the length of the sensor film structure 2 in the first direction. In addition, in the embodiment of the present application, the electrical connection component can be the control harness 4 or can be composed of the resistor 5 and the control harness 4. If the resistor 5 and the control harness 4 together constitute the electrical connection component, then the protection structure body 1 will also be correspondingly larger in size than the structure without the resistor 5 (see for details). Figure 3 , Figure 4, Figure 7 , Figure 8 , Fig.11 , Fig.12 , Fig.15 as well as Fig.16 ).

[0079] Example 2

[0080] Based on the novel occupant sensor protection structure of embodiment 1, this embodiment provides an automobile seat occupant occupancy sensor, specifically, the automobile seat occupant occupancy sensor also includes a sensing film structure 2 and an electrical connection component; the sensing film structure 2 is provided with a circuit structure, the electrical connection component and the circuit structure are electrically connected, and the protection structure body 1 is provided at the connection between the sensing film structure 2 and the electrical connection component. Among them, the electrical connection component is a control harness 4 or a combination of a control harness 4 and a resistor 5.

[0081] In addition, in a preferred embodiment, the car seat occupant occupancy sensor is arranged on the seat foam 3, and the sensing film structure 2 can form a sensing conductive loop with the control wiring harness 4 connected to the circuit structure inside the sensing film structure 2, and a protective structure body 1 is provided at the connection between the control wiring harness 4 and the sensing film structure 2.

[0082] Among them, the circuit structure inside the sensor film structure 2 is connected to the terminal 15 of the control harness 4, which can realize the signal connection between the sensor film structure 2 and the external control, and then obtain and analyze the data collected by the sensor film structure 2, and use this as a basis for judging whether there is a person sitting in the car seat. When it is judged that there is a person sitting in the car seat and the seat belt is not fastened, it is necessary to start the seat belt reminder 6 to remind the occupant to fasten the seat belt in time, so the sensor film structure 2 is also connected to the seat belt reminder 6 signal.

[0083] In addition, in a preferred embodiment, see Figure 17-Figure 20 The sensing film structure 2 and the protective structure body 1 also include a variety of arrangements, including: the sensing film structure 2 and the protective structure body 1 are jointly arranged on the side of the seat foam 3 close to the human body (see Fig.17 ), or, the sensing film structure 2 and the protective structure body 1 are jointly arranged on the side of the seat foam 3 away from the human body (see Fig. 20 ), or, the sensing film structure 2 and the protective structure body 1 are respectively arranged on two different surfaces of the seat foam 3 (see Fig.18 and Fig.19 ).

[0084] When the sensing film structure 2 and the protection structure body 1 are respectively arranged on two different surfaces of the seat foam 3 , the sensing film structure 2 extends to the surface where the protection structure body 1 is located through the wire outlet hole 31 on the seat foam 3 .

[0085] It should be noted that the arrangement of the sensor film structure 2 and the protective structure body 1 in actual situations needs to be further considered in combination with actual assembly requirements, and is not specifically limited here.

[0086] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A novel occupant sensor protection structure, characterized in that: include: A protective structure body (1), the protective structure body (1) being used to protect the connection between the sensor chip structure (2) and the electrical connection component; The protection structure body (1) comprises at least one protection portion (11), the protection portion (11) being located at the connection between the sensing chip structure (2) and the electrical connection component; at least one protrusion (12) is provided on a side of the protection portion (11) close to the sensing chip structure (2), the protrusion (12) being arranged to avoid the circuit structure in the sensing chip structure (2) and used for dispersing the force acting on the circuit structure when the connection between the sensing chip structure (2) and the electrical connection component is subjected to external force.

2. The novel occupant sensor protection structure according to claim 1 is characterized in that: The raised portion (12) and the protective portion (11) are integrally formed.

3. The novel occupant sensor protection structure according to claim 2 is characterized in that: At least one avoidance area (13) is formed on a side of the protection portion (11) close to the sensor chip structure (2), and the avoidance area (13) and the protruding portion (12) are formed in cooperation with each other; the avoidance area (13) is arranged corresponding to the circuit structure in the sensor chip structure (2); The circuit structure includes a plurality of circuits (21) arranged in the sensor chip structure (2).

4. The novel occupant sensor protection structure according to claim 3 is characterized in that: The protective structure body (1) comprises two protrusions (12) and the avoidance area (13) located between the two protrusions (12); The length of the avoidance area (13) in the first direction is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between two circuits (21) with the largest spacing in the circuit structure along the first direction; the first direction is perpendicular to the circuit (21).

5. The novel occupant sensor protection structure according to claim 3 is characterized in that: The protection structure body (1) comprises a plurality of raised portions (12) and avoidance areas (13) which are sequentially spaced and distributed; the raised portion (12) is located between two adjacent circuits (21); The avoidance areas (13) are arranged corresponding to each of the circuits (21).

6. The novel occupant sensor protection structure according to claim 3 is characterized in that: The protective structure body (1) comprises a protruding portion (12) and avoidance areas (13) located on both sides of the protruding portion (12); The raised portion (12) is located between two adjacent circuits (21), and the avoidance area (13) is provided corresponding to each circuit (21).

7. The novel occupant sensor protection structure according to claim 4 is characterized in that: The protective structure body (1) comprises an avoidance area (13) and the protruding portions (12) located on both sides of the avoidance area (13); The avoidance area (13) is an arc-shaped structure, the opening of the arc-shaped structure is arranged toward the sensor film structure (2), the distance between the two end points of the arc-shaped structure is greater than the distribution length of the circuit structure along the first direction; the distribution length is the distance value between the two circuits (21) with the largest spacing in the circuit structure along the first direction; the first direction is perpendicular to the circuit (21).

8. The novel occupant sensor protection structure according to any one of claims 3 to 7, characterized in that: The raised portion (12) and the avoidance area (13) are smoothly joined, and the joining point is an arc segment (14).

9. A car seat occupant occupancy sensor, characterized in that: The novel occupant sensor protection structure is applied with any one of items 1 to 8 above, and also includes a sensor chip structure (2) and an electrical connection component, wherein a circuit structure is provided in the sensor chip structure (2), the electrical connection component is electrically connected to the circuit structure, and the protection structure body (1) is provided at the connection between the sensor chip structure (2) and the electrical connection component.

10. The vehicle seat occupant occupancy sensor according to claim 9, characterized in that: The electrical connection component is a control wiring harness (4) or a combination of the control wiring harness (4) and a resistor (5).

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