Side airbag harness terminal protection device with mortise and tenon structure and use method thereof

Abstract

The present invention discloses a side airbag harness terminal protection device with a mortise and tenon structure, comprising a first mortise, a second mortise and a tenon rod, the inner cavity of the first mortise having a hollow portion that can accommodate the harness terminal and the top of the gas generator, and the first mortise, the second mortise and the tenon rod are fixedly connected to each other through the mortise and tenon structure. The present invention also discloses a method for using a side airbag harness terminal protection device with a mortise and tenon structure. The present invention achieves fixation through the mortise and tenon structure, and the various components are fixed and restricted to each other. This structure is self-locking and firmly connected through the various components, and there is no need to adopt fixing methods such as screwing, welding, riveting or bonding, and has the characteristics of firm fixation, convenient disassembly and assembly, and low cost. In addition, the present invention can also firmly fix the harness terminal and the generator, and completely wrap the harness terminal, ensuring that the harness terminal is not subjected to forces in all directions, avoiding the alarm phenomenon of the harness terminal, and playing a dual role of protection and fixation.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a side airbag harness terminal protection device with a mortise and tenon structure and a use method thereof. Background Art

[0002] With the development of the world economy, the automotive industry has also developed rapidly. People have a better understanding of cars. Today, people pay more and more attention to the safety of cars, and passive safety is becoming more and more important. Airbags have become standard equipment, and the proportion of seat airbags is increasing. At the same time, a technical problem has emerged. The airbag wiring harness terminal has poor contact due to external force, triggering the airbag alarm. Therefore, the protection of the airbag terminal has become a new technical problem.

[0003] The airbag terminal itself has a self-locking function, but since the side airbag itself is located on the side of the seat and is easily squeezed, it is still necessary to protect the airbag terminal. Considering the force influence of the side airbag itself, the protection device needs to fix the airbag terminal and the gas generator together to play a protective role. At present, most of the protection devices protect the space around the airbag terminal to ensure that the airbag terminal is not affected by force, but the terminal cannot be fixed on the gas generator. When the protection device is subjected to external force, the airbag alarm will still be triggered due to poor contact of the airbag harness terminal. Summary of the invention

[0004] The object of the present invention is to provide a side airbag wiring harness terminal protection device with a mortise and tenon structure and a method of using the same to solve the above-mentioned problems in view of the above-mentioned deficiencies and defects of the prior art.

[0005] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A side airbag harness terminal protection device with a mortise and tenon structure comprises a first mortise, a second mortise and a tenon rod. The inner cavity of the first mortise has a hollow portion that can accommodate a harness terminal and a top end of a gas generator. The first mortise, the second mortise and the tenon rod are fixedly connected to each other through the mortise and tenon structure.

[0007] In a preferred embodiment of the present invention, the first mortise and tenon is provided with a wire outlet groove for leading out the wires of the wire harness.

[0008] In a preferred embodiment of the present invention, the first mortise and tenon has a first fitting surface, the second mortise and tenon has a second fitting surface corresponding to the first fitting surface, the first fitting surface is provided with a first limiting groove and a second limiting groove, the second fitting surface is provided with a first limiting boss matching the first limiting groove and a second limiting boss matching the second limiting groove, a slot for the tenon rod member to be inserted is also provided on the side of the first fitting surface, the second fitting surface is provided with a limiting edge matching the slot and the tenon rod member, when the first fitting surface and the second fitting surface are fitted in place, the first fitting surface and the second fitting surface are relatively moved so that the first limiting boss is inserted into the first limiting groove and the second limiting boss is inserted into the second limiting groove, and a tenon groove is formed between the slot and the limiting edge after the first mortise and the second mortise are fully matched, and finally the tenon rod member is inserted into the tenon groove for limiting, so that the entire structure is locked in all directions to form a fixed structure.

[0009] In a preferred embodiment of the present invention, the first limiting groove is a T-shaped groove, the second limiting groove is an L-shaped groove, the first limiting boss is a T-shaped boss, and the second limiting boss is an L-shaped boss.

[0010] In a preferred embodiment of the present invention, the second fitting surface is provided with a matching surface for limiting the position with the top end of the gas generator.

[0011] In a preferred embodiment of the present invention, the tenon of the tenon rod member has a sloped structure.

[0012] In a preferred embodiment of the present invention, friction lines are provided on the inclined surface structure.

[0013] In a preferred embodiment of the present invention, the first mortise and tenon member, the second mortise and tenon member are plastic members, metal members or wooden members.

[0014] A method for using a side airbag wiring harness terminal protection device with a mortise and tenon structure comprises the following steps:

[0015] Install the gas generator and the fixed bracket and fix them with a fixing belt, then insert the wiring harness terminal on the gas generator, put the hollow part of the first mortise and tenon on the wiring harness terminal, the gas generator and the fixed iron bracket, and put the wiring harness into the wire outlet groove so that the inner surface of the hollow part is compatible with the wiring harness terminal, the gas generator and the fixed bracket, and then fit the second fitting surface of the second mortise and tenon with the first fitting surface of the first mortise and tenon correspondingly. At this time, the first mortise and the second mortise and tenon are staggered and not completely matched. The second mortise and tenon are translated upward so that the first limiting boss is inserted into the first limiting groove and the second limiting boss is inserted into the second limiting groove. After the first mortise and the second mortise and tenon are completely matched, a mortise and tenon groove will be formed between the slot and the limiting edge. Finally, the tenon rod is inserted into the mortise and tenon groove for limiting, so that the entire structure is locked in all directions to form a fixed structure.

[0016] Due to the adoption of the above technical solution, the present invention realizes fixation through the mortise and tenon structure, and the various components are fixed and restricted to each other. This structure is self-locking and firmly connected through various components, without the need for fixing methods such as screwing, welding, riveting or bonding, and has the characteristics of firm fixation, convenient disassembly and assembly, and low cost. In addition, the present invention can also firmly fix the wiring harness terminal to the generator, wrap the entire wiring harness terminal, ensure that the wiring harness terminal is not subjected to forces in all directions, avoid the alarm phenomenon of the wiring harness terminal, and play a dual role of protection and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of the first mortise and tenon in the present invention.

[0019] Figure 2 It is a schematic structural diagram of the second mortise and tenon in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the tenon rod member in the present invention.

[0021] Figure 4 It is a schematic diagram of the installation explosion of the present invention.

[0022] Figure 5 It is a schematic diagram of the function of the present invention when used in a seat.

[0023] Figure 6 This is one of the schematic diagrams of the mortise and tenon structure assembly in the present invention.

[0024] Figure 7 This is the second schematic diagram of the mortise and tenon structure assembly in the present invention. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.

[0026] See also Figures 1 to 7 The side airbag wiring harness terminal protection device of the mortise and tenon structure shown includes a first mortise and tenon 1, a second mortise and tenon rod 3, the inner cavity of the first mortise and tenon 1 has a hollow portion 10 that can accommodate the wiring harness terminal 401 and the top of the gas generator 402, and the first mortise and tenon 1, the second mortise and tenon 2 and the tenon rod 3 are fixedly connected to each other through the mortise and tenon structure.

[0027] The first mortise and tenon 1 in this embodiment is provided with a wire outlet groove 107 for leading out the wire harness sling 405. The first mortise and tenon 1 has a first fitting surface 101, and the first limiting groove 102 and the second limiting groove 106 are provided on the first fitting surface 101. The first limiting groove 102 is provided in the middle of the first fitting surface 101, and the second limiting groove 106 includes a pair, which are respectively provided on both sides of the bottom mating surface 105 of the first fitting surface 101. Preferably, the first limiting groove 102 is a T-shaped groove, and the second limiting groove 106 is an L-shaped groove. The hollow portion 10 has surfaces 103 and 104 corresponding to the wiring harness terminal, the gas generator, and the fixed bracket. The surfaces 103 and 104 are provided according to the shapes of the wiring harness terminal, the gas generator, and the fixed bracket, so that the wiring harness terminal, the gas generator, and the fixed bracket can be fitted on the surfaces 103 and 104. A slot 108 for inserting the tenon rod 3 is also disposed on the side of the first fitting surface 101 . The slot 108 comprises a pair, which are disposed on both sides of the first fitting surface 101 .

[0028] The second mortise 2 in this embodiment has a second fitting surface 201 corresponding to the first fitting surface 101, and the second fitting surface 201 is provided with a first limiting boss 202 that matches the first limiting groove 102, and a second limiting boss 206 that matches the second limiting groove 106. Preferably, the first limiting boss 202 is a T-shaped boss, and the second limiting boss 206 is an L-shaped boss. The second fitting surface 201 is provided with a limiting edge 204 that matches the slot 108 and the tenon rod 3. The second fitting surface 201 is provided with a matching surface 205 for limiting the top end of the gas generator 402, and the matching surface 205 is provided with an arc surface 207, which can match the cylindrical surface of the gas generator 402 for easy fixation.

[0029] The tenon 301 of the tenon member 3 in this embodiment has an inclined surface structure with friction lines 301a, so that the tenon rod 303 of the tenon member 3 can be easily fixed when inserted into the tenon groove 701. The tenon 301 is provided with a tenon hole 302 for easy disassembly and assembly.

[0030] A method for using a side airbag wiring harness terminal protection device with a mortise and tenon structure comprises the following steps:

[0031] Install the gas generator 402 and the fixed bracket 404, fix them with the fixing belt 403, then insert the wire harness terminal 401 on the gas generator 402, put the hollow part 10 of the first mortise 1 on the wire harness terminal 401, the gas generator 402, and the fixed iron bracket 404, put the wire harness wire 405 into the outlet groove 107, so that the inner surface (i.e., surface 103, 104) of the hollow part 10 is adapted to the wire harness terminal 401, the gas generator 402, and the fixed bracket 404, and then the second fitting surface 201 of the second mortise 2 is connected to the first mortise 2. The first fitting surface 101 of a mortise and tenon 1 corresponds to the fitting surface. At this time, the first mortise and tenon 1 and the second mortise and tenon 2 are staggered and not completely matched. The second mortise and tenon 2 is translated upward so that the first limiting boss 202 is inserted into the first limiting groove 102 and the second limiting boss 206 is inserted into the second limiting groove 106. After the first mortise and tenon 1 and the second mortise and tenon 2 are completely matched, a tenon groove 701 is formed between the slot 108 and the limiting edge 204. Finally, the tenon rod 3 is inserted into the tenon groove 701 for limiting the position, so that the entire structure is locked in all directions to form a fixed structure.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A side airbag wiring harness terminal protection device with a mortise and tenon structure, characterized in that: It comprises a first mortise and tenon, a second mortise and tenon rod, the inner cavity of the first mortise and tenon has a hollow portion that can accommodate the wiring harness terminal and the top end of the gas generator, and the first mortise and tenon, the second mortise and tenon rod are fixedly connected to each other through a mortise and tenon structure; The first mortise is provided with a wire outlet groove for the wire harness to be led out; The first mortise and tenon has a first fitting surface, and the second mortise and tenon has a second fitting surface corresponding to the first fitting surface. The first fitting surface is provided with a first limiting groove and a second limiting groove, and the second fitting surface is provided with a first limiting boss matching the first limiting groove and a second limiting boss matching the second limiting groove. A slot for inserting the tenon rod member is also provided on the side of the first fitting surface, and the second fitting surface is provided with a limiting edge matching the slot and the tenon rod member. When the first fitting surface and the second fitting surface are fitted in place, the first fitting surface and the second fitting surface are relatively moved so that the first limiting boss is inserted into the first limiting groove, and the second limiting boss is inserted into the second limiting groove. After the first mortise and the second mortise are fully matched, a tenon groove will be formed between the slot and the limiting edge. Finally, the tenon rod member is inserted into the tenon groove for limiting, so that the entire structure is locked in all directions to form a fixed structure.

2. The side airbag wiring harness terminal protection device with mortise and tenon structure according to claim 1, characterized in that: The first limiting groove is a T-shaped groove, the second limiting groove is an L-shaped groove, the first limiting boss is a T-shaped boss, and the second limiting boss is an L-shaped boss.

3. The side airbag harness terminal protection device with mortise and tenon structure according to claim 1, characterized in that: The second fitting surface is provided with a matching surface for limiting the position with the top end of the gas generator.

4. The side airbag wiring harness terminal protection device with mortise and tenon structure according to claim 1, characterized in that: The tenon of the tenon rod member has an inclined surface structure.

5. The side airbag harness terminal protection device with mortise and tenon structure according to claim 4, characterized in that: The inclined surface structure is provided with friction lines.

6. The side airbag harness terminal protection device with mortise and tenon structure according to claim 1, characterized in that: The first mortise and tenon, the second mortise and tenon rod are plastic parts, metal parts or wooden parts.

7. A method for using the side airbag harness terminal protection device for realizing the mortise and tenon structure according to any one of claims 1 to 6, characterized in that: The steps include: Install the gas generator and the fixed bracket and fix them with a fixing belt, then insert the wiring harness terminal on the gas generator, put the hollow part of the first mortise and tenon on the wiring harness terminal, the gas generator and the fixed iron bracket, and put the wiring harness into the wire outlet groove so that the inner surface of the hollow part is compatible with the wiring harness terminal, the gas generator and the fixed bracket, and then fit the second fitting surface of the second mortise and tenon with the first fitting surface of the first mortise and tenon correspondingly. At this time, the first mortise and the second mortise and tenon are staggered and not completely matched. The second mortise and tenon are translated upward so that the first limiting boss is inserted into the first limiting groove and the second limiting boss is inserted into the second limiting groove. After the first mortise and the second mortise and tenon are completely matched, a mortise and tenon groove will be formed between the slot and the limiting edge. Finally, the tenon rod is inserted into the mortise and tenon groove for limiting, so that the entire structure is locked in all directions to form a fixed structure.

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