360-degree anti-pinch strip and sealing strip with four conductive core wires

Abstract

We provide a 360-degree pinch-prevention strip and sealing strip having four conductive core wires. [Solution] In the anti-pinch strip, a first end body 2 and a second end body 3 are attached to both ends of the sensor strip 1, respectively. Four conductive core wires are provided inside the sensor strip, wound in a segmented manner at predetermined intervals without contact, forming a hollow space at the winding axis. An insulating layer is embedded in the gaps between the four conductive core wires and covers them. The insulating layer is covered by a covering layer. These conductive core wires are electrically connected in series to a resistor and a circuit board to form a detection circuit. The detection circuit is electrically connected to a harness 4, and the harness is electrically connected to a connector 5. By inserting partition members into the openings at both ends of the sensor strip, insulation of the ends of the conductive core wires is achieved. This improves the stability and effectiveness of the product while meeting the requirements for installation and placement in narrow spaces.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-pinching strips, and particularly to a 360-degree anti-pinching strip and a seal strip having four conductive core wires.

Background Art

[0002] The electric sliding doors and electric rear doors of automobiles can make it easier and more convenient to open and close the doors in daily movement. The anti-pinching strip is arranged on the edge of the door and can effectively prevent injuries caused by pinching.

[0003] However, with the diversification of vehicle body designs and the increasing requirements for vehicle body accuracy and airtightness, the installation space for the anti-pinching strip becomes narrower, and the small bending angle of the door joint also increases the difficulty of installation. Due to the above difficulties, higher requirements are being placed on aspects such as the volume, operating angle, and sensitivity of the anti-pinching strip.

[0004] Therefore, a 360-degree anti-pinching strip and a seal strip having four conductive core wires that can solve the above one or more problems are urgently needed.

Summary of the Invention

Problems to be Solved by the Invention

[0005] In order to solve one or more problems in the prior art, the present invention provides a 360-degree anti-pinching strip having four conductive core wires.

Means for Solving the Problems

[0006] The technical solution employed by this invention to solve the above problem is as follows: A 360-degree anti-pinch strip having four conductive core wires, wherein a sensor strip is provided on the anti-pinch strip, a first end body and a second end body are attached to both ends of the sensor strip, and four conductive core wires, a first conductive core wire, a second conductive core wire, a third conductive core wire and a fourth conductive core wire, are provided within the sensor strip. The first, second, third, and fourth conductive core wires are spiral wires, wound segmentally at predetermined intervals without contact, forming a hollow space around the winding axis, and an insulating layer is embedded in the gaps between the four conductive core wires and covers them, and the insulating layer is covered by a covering layer. The first conductive core wire, the second conductive core wire, the third conductive core wire, the fourth conductive core wire, the resistor, and the circuit board are electrically connected in series to constitute a detection circuit, the input terminals and output terminals of the detection circuit are electrically connected to the first core and the second core of the harness, respectively, and the harness is electrically connected to the connector. A first partition member is inserted into the opening at the first end of the sensor strip, the first partition member insulates and separates the ends of the four conductive core wires, the four conductive core wires are electrically connected to the circuit board outside the first partition member, and the first end body covers and seals the first partition member and the circuit board. The resistor and the input and output terminals of the detection circuit are provided at the second end of the sensor strip, a second partition member is inserted into the opening at the second end of the sensor strip, the second partition member insulates and separates the ends of the four conductive core wires, the connection between the input and output terminals of the detection circuit and the first and second cores is covered with a heat shrink sleeve, the connection between the detection circuit and the resistor is covered with the heat shrink sleeve, and the second end body covers the connection between the second end of the sensor strip and the harness.

[0007] In some embodiments, the first, second, third, and fourth conductive core wires are all elastic conductive core wires.

[0008] Furthermore, both the insulating layer and the coating layer are elastic layers and both are transparent layers.

[0009] In some embodiments, both the first and second end bodies are injection-molded from a transparent elastic material.

[0010] In some embodiments, a neck portion, which is a locking groove and / or locking flange, is formed at the tip of the first end body.

[0011] In some embodiments, the first, second, third, and fourth conductive core wires are arranged in an array at 90° intervals in the circumferential direction, with non-contact gaps formed between them, and the insulating layer is embedded within the non-contact gaps.

[0012] In some embodiments, the harness is covered with a sponge tube, and harness clips are provided on the outer circumference of the harness or the sponge tube.

[0013] In some embodiments, a plug lock is attached to the side of the connector, and a sponge pad is provided on the plug lock.

[0014] This invention further relates to a seal strip using the above-mentioned anti-pinch strip, wherein an insertion groove for inserting into a vehicle body sheet metal is provided at the lower end of the seal strip, a projection extending to the vehicle body sheet metal is provided within the insertion groove, a groove edge for accommodating a harness is formed below the projection, a wiring groove for accommodating a sensor strip is provided at the upper end of the seal strip, and a curved lip portion for fitting with the other side of the vehicle body sheet metal is formed on the side of the seal strip. A first corner joint and a second corner joint are provided at both ends of the seal strip, and an intermediate corner joint is provided between the first corner joint and the second corner joint. The first corner joint and the second corner joint are used for connecting to the vehicle body sheet metal and for fitting and inserting parts, and the intermediate corner joint is used for connecting to the vehicle body sheet metal and for sealing holes. A mounting groove is provided within the second corner joint, and a notch is opened in the edge of the groove. The harness is inserted into the groove through the notch, and the sensor strip connected to the harness is inserted into the wiring groove through the mounting groove.

[0015] In some embodiments, a sponge adhesive is provided on the surface of the lip portion facing the sheet metal of the vehicle body, a sponge tube is attached to the wiring groove, the sensor strip is inserted into the sponge tube, a processed rib is provided between the lip portion and the seal strip, a braided frame is provided inside the seal strip, and the shape of the insertion groove is compatible with the braided frame. The seal strip is formed by filling the braided frame with a high-density adhesive, the opening of the wiring groove is covered with the sponge adhesive to form a groove body that is sealed around the periphery, and the sensor strip is inserted into the groove body.

[0016] In some embodiments, the first corner joint is provided with a through groove communicating with either the insertion groove, the wiring groove, or the groove edge; the second corner joint is provided with an outer extension wall for connection to a buckle; the base of the intermediate corner joint is connected to the seal strip; the first side wall of the intermediate corner joint extends outward and is provided with a first engagement portion; and the second side wall of the intermediate corner joint extends into the insertion groove and engages with the insertion groove.

[0017] In some embodiments, a rubber cover is attached to one side of the notch, and the rubber cover is provided with a second engaging portion, a buckle for a cable tie, an undercut portion, and a limiting portion, the second engaging portion and the buckle for a cable tie being used to secure the harness, the limiting portion and the undercut portion being used to connect to the door sheet metal, and the limiting portion being a projection or groove.

[0018] In some embodiments, the second end body is housed in the mounting groove, and the second end body is adhesively fixed within the mounting groove. [Effects of the Invention]

[0019] The technical effects achieved by this invention are as follows: The insulating layer is embedded in the gaps between the four conductive core wires and covers them, and by further covering the insulating layer with a covering layer, the diameter of the hollow space in the sensor strip can be reduced, thereby achieving a smaller outer diameter for the sensor strip and ensuring that the sensor strip has relatively high rotational resistance and insulation performance. The second end body connects the sensor strip to the harness, ensuring sealing and bending resistance at the connection end, reducing the tensile force applied to the welded or fixed part of the core wires when bending at the corner of the connection, and ensuring the reliability of the electrical connection between the sensor strip and the harness. Finally, it improves the stability and usability of the product while meeting the requirements for mounting and placement in narrow spaces, and is useful for placement in the corner of the vehicle body.

[0020] The above-mentioned sealing strip can well meet the requirements for mounting and positioning the anti-pinch strip to the vehicle body sheet metal, providing a stable and reliable connection with the vehicle body sheet metal, ensuring good sealing performance between the product and the sheet metal surface, meeting the shock absorption and flexibility required for opening and closing doors and windows, and at the same time ensuring the aesthetic appearance of the exposed parts. [Brief explanation of the drawing]

[0021] [Figure 1] This is a schematic diagram of the pinch prevention strip according to the present invention. [Figure 2] It is an internal structure diagram of the sensor strip according to the present invention. [Figure 3] It is an exploded view of the sensor strip according to the present invention. [Figure 4] It is an exploded view of the first end portion of the sensor strip according to the present invention. [Figure 5] It is an exploded view of the second end portion of the sensor strip according to the present invention. [Figure 6] It is a schematic diagram showing the connection of the anti-pinching strip, the seal strip and the vehicle body sheet metal according to the present invention. [Figure 7] It is a schematic diagram showing the connection between the seal strip according to the present invention and other members. [Figure 8] It is a schematic diagram of the first corner joint of the present invention. [Figure 9] It is a schematic diagram of the second corner joint of the present invention. [Figure 10] It is a schematic diagram of the intermediate corner joint according to the present invention. [Figure 11] It is a schematic diagram of the mounting groove of the second corner joint of the present invention.

Embodiments for Carrying out the Invention

[0022] In order to more easily understand the above objects, features and advantages of the present invention, specific embodiments of the present invention will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in other forms different from those described herein, and those skilled in the art can make similar improvements without departing from the gist of the present invention. Therefore, the present invention is not limited by the specific examples disclosed below.

[0023] As shown in Figure 1, the present invention discloses a 360-degree anti-pinch strip having four conductive core wires, a sensor strip 1 being provided on the anti-pinch strip, and a first end body 2 and a second end body 3 being attached to both ends of the sensor strip 1, respectively. As shown in Figures 2 and 3, the sensor strip 1 contains four conductive core wires: a first conductive core wire 10, a second conductive core wire 11, a third conductive core wire 12, and a fourth conductive core wire 13. The first, second, third, and fourth conductive core wires are spiral wires, wound in a segmented shape at predetermined intervals without contact, forming a hollow space around the winding axis. An insulating layer 14 is embedded in the gaps between the four conductive core wires and covers them. The insulating layer 14 is covered by a covering layer 15. The first conductive core wire 10, the second conductive core wire 11, the third conductive core wire 12, the fourth conductive core wire 13, the resistor 31, and the circuit board 20 are electrically connected in series to form a detection circuit, the input terminals and output terminals of the detection circuit are electrically connected to the first core 40 and the second core 41 of the harness 4, respectively, and the harness 4 is electrically connected to a connector 5 for electrical connection to the control ECU. The first, second, third, and fourth conductive core wires are arranged in an array at 90° intervals in the circumferential direction, with non-contact gaps formed between them, and the insulating layer 14 is embedded within the non-contact gaps.

[0024] Regarding the structure of the four conductive core wires and the detection circuit, please refer to Patent No. CN202420192328.7, title of invention "Anti-pinch strip having multiple conductive core wires," and specific details will not be explained in detail here.

[0025] As shown in Figure 4, a first partition member 21 is inserted into the opening at the first end of the sensor strip 1, the first partition member 21 insulates and separates the ends of the four conductive core wires, the four conductive core wires are electrically connected to the circuit board 20 outside the first partition member 21, and the first end body 2 covers and seals the first partition member 21 and the circuit board 20. Furthermore, a neck portion 22, which is a locking groove and / or locking flange, is formed at the tip of the first end body 2, thereby facilitating the insertion and housing of the seal strip through the neck portion 22 in subsequent processes.

[0026] As shown in Figure 5, the resistor 31 and the input and output terminals of the detection circuit are provided at the second end of the sensor strip 1, a second partition member 32 is inserted into the opening at the second end of the sensor strip 1, the second partition member 32 insulates and separates the ends of the four conductive core wires, the connection between the input and output terminals of the detection circuit and the first and second cores is covered with a heat shrink sleeve 30, the connection between the detection circuit and the resistor 31 is covered with the heat shrink sleeve 30, and the second end body 3 covers the connection between the second end of the sensor strip 1 and the harness 4.

[0027] What needs to be explained is that by welding the circuit board 20 and the four conductive core wires to form the detection circuit, the degree of matching of the lengths of the conductive core wires can be effectively ensured, and the uniformity of the spiral distribution of the conductive core wires can be ensured. As a result, the sensor strip has the characteristic of having a uniform and consistent trigger force and trigger stroke in each direction, further improving the anti-pinch sensitivity and reducing the probability of malfunction due to bending. By using the first end body 2 and the second end body 3 to seal both ends of the sensor strip 1 and connect them to the harness 4, the protective performance is enhanced, and the kink resistance and tensile performance at the ends and connections are improved.

[0028] Specifically, in the case of the sensor strip 1, the first, second, third, and fourth conductive core wires are all elastic conductive core wires, the insulating layer 14 and the coating layer 15 are both elastic layers and transparent layers, and the first end body 2 and the second end body 3 are both injection molded from a transparent elastic material, thereby facilitating observation of the internal structure and ensuring protective performance.

[0029] Specifically, as shown in Figure 1, the harness 4 is covered with a sponge tube 6, a harness clip 60 is provided on the outer circumference of the harness 4 or the sponge tube 6, a plug lock 50 is attached to the side of the connector 5, and a sponge pad (to ensure waterproofing) is provided on the plug lock 50. This facilitates the placement and installation of the anti-pinch strip, protects the harness, and reduces vibration and noise caused by friction.

[0030] This invention further discloses a seal strip using the above-mentioned anti-pinch strip, as shown in Figures 6 and 7. An insertion groove 700 for inserting a vehicle body sheet metal 8 is provided at the lower end of the seal strip 7, a projection 71 extending to the vehicle body sheet metal 8 is provided within the insertion groove 700, a groove edge 72 for accommodating a harness 4 is formed below the projection 71, a wiring groove 73 for accommodating a sensor strip 1 is provided at the upper end of the seal strip 7, and a curved lip portion 74 for fitting with the other vehicle body sheet metal 8 is formed on the side of the seal strip 7. As shown in Figure 7, a first corner joint 80 and a second corner joint 81 are provided at both ends of the seal strip 7, and an intermediate corner joint 82 is provided between the first corner joint 80 and the second corner joint 81. The first corner joint 80 and the second corner joint 81 are used for connecting to the vehicle body sheet metal and for fitting and inserting parts, and the intermediate corner joint 82 is used for connecting to the vehicle body sheet metal and for sealing holes. As shown in Figures 7 and 9, a mounting groove 810 is provided in the second corner joint 81, and a notch is made in the groove edge 72. The harness 4 is inserted into the groove edge 72 through the notch, and the sensor strip 1 connected to the harness 4 is inserted into the wiring groove 73 through the mounting groove 810.

[0031] Specifically, as shown in Figure 6, a sponge adhesive 740 is provided on the surface of the lip portion 74 facing the vehicle body sheet metal 8, a sponge tube is attached to the wiring groove 73, the sensor strip 1 is inserted into the sponge tube, a processed rib 75 is provided between the lip portion 74 and the seal strip 7, a braided frame 70 is provided inside the seal strip 7, and the shape of the insertion groove 700 is compatible with the braided frame 70. The seal strip 7 is formed by filling the braided frame 70 with a high-density adhesive, the opening of the wiring groove 73 is covered with the sponge adhesive 740 to form a groove body that is sealed around the periphery, and the sensor strip 1 is inserted into the groove body.

[0032] Specifically, as shown in Figures 6 to 10, the first corner joint 80 is provided with a through groove 800 that communicates with either the insertion groove 700, the wiring groove 73, or the groove edge 72; the second corner joint 81 is provided with an outer extension wall 811 for connection to the buckle 812; the base of the intermediate corner joint 82 is connected to the seal strip 7; the first side wall 821 of the intermediate corner joint 82 extends outward and is provided with a first engaging portion 820; and the second side wall 822 of the intermediate corner joint 82 extends into the insertion groove 700 and engages with the insertion groove 700.

[0033] As shown in Figure 7, during use of the seal strip 7, a rubber cover 9 is attached to one side of the notch of the groove edge 72, the external portion of the harness 4 is restricted and secured by the rubber cover 9, the rubber cover 9 is attached to an opening in the vehicle body sheet metal, the rubber cover 9 is provided with a corresponding second engagement portion 90, an undercut portion 91, a buckle for a cable tie and a restricting portion, the restricting portion being a projection or groove, the second engagement portion 90 and the buckle for a cable tie are used to secure the harness 4, and the restricting portion and the undercut portion The section 91 is used to connect and fix itself to the vehicle body sheet metal, the harness 4 enters the seal strip 7 through the notch in the groove edge 72 and is bent at the second corner joint 81, and after bending, the sensor strip 1 enters the sponge tube in the wiring groove 73, and the seal strip 7 is attached and fixed to the vehicle body sheet metal via the first and second corner joints and the intermediate corner joint, of which the intermediate corner joint 82 is in close contact with the water drain position of the sheet metal and covers the exposed hole, thereby shielding the hole and improving the appearance. To ensure the waterproof and soundproof performance of the product, sponge pads can be added to the connection parts with other components.

[0034] As shown in Figure 11, the second end body 3 is housed in the mounting groove 810, and the second end body 3 is adhesively fixed within the mounting groove 810, thereby preventing rattling and detachment of the sensor strip 1 during vehicle vibration.

[0035] In short, this invention reduces the diameter of the hollow space in the sensor strip by embedding an insulating layer in the gaps between the four conductive core wires and covering them, and further covering the insulating layer with a covering layer. This reduces the outer diameter of the sensor strip while ensuring that the sensor strip has relatively high rotational resistance and insulation performance. The second end body connects the sensor strip to the harness, ensuring sealing and bending resistance at the connection end, reducing the tensile force applied to the welded or fixed part of the core wires when bending at the corner of the connection, and ensuring the reliability of the electrical connection between the sensor strip and the harness. Ultimately, it improves the stability and usability of the product while meeting the requirements for mounting and placement in narrow spaces, and is useful for placement in the corners of the vehicle body.

[0036] The above-mentioned sealing strip can well meet the requirements for mounting and positioning the anti-pinch strip to the vehicle body sheet metal, providing a stable and reliable connection with the vehicle body sheet metal, ensuring good sealing performance between the product and the sheet metal surface, meeting the shock absorption and flexibility required for opening and closing doors and windows, and at the same time ensuring the aesthetic appearance of the exposed parts.

[0037] The embodiments described above are merely illustrative of one or more embodiments of the present invention, and although the descriptions are relatively specific and detailed, they should not be understood as limiting the scope of this utility model registration. It should be noted that those skilled in the art can make various further modifications and improvements without departing from the concept of the present invention, and all of these fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be in accordance with the claims of the attached utility model registration. [Explanation of symbols]

[0038] 1 Sensor strip 10. First conductive core wire 11. Second conductive core wire 12. Third conductive core wire 13. Fourth conductive core wire 14. Insulating layer 15 Covering layer 2. First end body 20 Circuit boards 21. First partition member 22 Neck section 3. Second End Body 30 Heat Shrink Sleeves 31 Resistor 32 Second partition member 4 Harnesses 40. First Core 41 Second Core 5 Connectors 50 Plug Lock 6 sponge tubes 60 Harness Clips 7 Seal strips 70 Braided Skeleton 700 Insertion grooves 71 Protrusion 72 Groove edge 73 Wiring groove 74 Lip section 740 Sponge Adhesive 75 split ribs 8. Bodywork 80 First Corner Joint 800 Through groove 81. Second Corner Joint 810 Mounting groove 811 External extension wall 812 Buckle 82 Intermediate corner joint 820 First engagement part 821 First side wall 822 Second side wall 9 Rubber cover 90 Second engagement portion 91 Undercut section

Claims

1. A 360-degree pinch-prevention strip having four conductive core wires, A sensor strip is provided on the anti-pinch strip, and a first end body and a second end body are attached to both ends of the sensor strip, respectively. Four conductive cores are provided within the sensor strip: a first conductive core, a second conductive core, a third conductive core, and a fourth conductive core. The first, second, third, and fourth conductive core wires are spiral wires, wound in a segmented manner at predetermined intervals without contact, forming a hollow space around the winding axis, and an insulating layer is embedded in the gaps between the four conductive core wires and covers them, and the insulating layer is covered by a covering layer. The first conductive core wire, the second conductive core wire, the third conductive core wire, the fourth conductive core wire, the resistor, and the circuit board are electrically connected in series to constitute a detection circuit, the input terminals and output terminals of the detection circuit are electrically connected to the first core and the second core of the harness, respectively, and the harness is electrically connected to the connector. A first partition member is inserted into the opening at the first end of the sensor strip, the first partition member insulates and separates the ends of the four conductive core wires, the four conductive core wires are electrically connected to the circuit board outside the first partition member, and the first end body covers and seals the first partition member and the circuit board. A 360-degree pinch-prevention strip having four conductive core wires, characterized in that the resistor and the input and output terminals of the detection circuit are provided at the second end of the sensor strip, a second partition member is inserted into the opening at the second end of the sensor strip, the second partition member insulates and separates the ends of the four conductive core wires, the connection portion between the input and output terminals of the detection circuit and the first and second cores is covered with a heat-shrinkable sleeve, the connection portion between the detection circuit and the resistor is covered with the heat-shrinkable sleeve, and the second end body covers the connection portion between the second end of the sensor strip and the harness.

2. The 360-degree anti-pinch strip having four conductive cores according to claim 1, characterized in that the first, second, third, and fourth conductive cores are all elastic conductive cores, the insulating layer and the coating layer are both elastic layers and transparent layers, and the first end body and the second end body are both injection molded from a transparent elastic material.

3. The 360-degree anti-pinch strip having four conductive core wires, as described in claim 1, characterized in that a neck portion which is a locking groove and / or locking flange is formed at the tip of the first end body.

4. The 360-degree pinch-prevention strip having four conductive core wires according to claim 1, characterized in that the first, second, third, and fourth conductive core wires are arranged in an array at 90° intervals in the circumferential direction, with non-contact gaps formed between them, and the insulating layer is embedded within the non-contact gaps.

5. The 360-degree pinch-prevention strip having four conductive core wires according to claim 1, characterized in that the harness is covered with a sponge tube, a harness clip is provided on the outer circumference of the harness or the sponge tube, a plug lock is attached to the side of the connector, and a sponge pad is provided on the plug lock.

6. A sealing strip using the anti-pinch strip described in any one of claims 1 to 5, An insertion groove for inserting a vehicle body sheet metal is provided at the lower end of the seal strip, and a projection extending to the vehicle body sheet metal is provided within the insertion groove, and a groove edge for accommodating a harness is formed below the projection, and a wiring groove for accommodating a sensor strip is provided at the upper end of the seal strip, and a curved lip portion for fitting with the vehicle body sheet metal on the other side is formed on the side of the seal strip. A first corner joint and a second corner joint are provided at both ends of the seal strip, and an intermediate corner joint is provided between the first corner joint and the second corner joint. The first corner joint and the second corner joint are used for connecting to the vehicle body sheet metal and for fitting and inserting parts, and the intermediate corner joint is used for connecting to the vehicle body sheet metal and for sealing holes. A seal strip characterized in that a mounting groove is provided in the second corner joint, a notch is opened in the edge of the groove, the harness is inserted into the groove edge through the notch, and the sensor strip connected to the harness is inserted into the wiring groove through the mounting groove.

7. A sponge adhesive is provided on the surface of the lip portion facing the sheet metal of the vehicle body, a sponge tube is attached to the wiring groove, the sensor strip is inserted into the sponge tube, a processed rib is provided between the lip portion and the seal strip, a braided frame is provided inside the seal strip, and the shape of the insertion groove is compatible with the braided frame. The seal strip according to claim 6, characterized in that the seal strip is formed by filling the braided frame with a high-density adhesive, the opening of the wiring groove is covered with the sponge adhesive to form a groove body that is sealed around the periphery, and the sensor strip is inserted into the groove body.

8. The seal strip according to claim 6, wherein the first corner joint is provided with a through groove that communicates with any of the insertion groove, the wiring groove, and the groove edge, the second corner joint is provided with an outer extension wall for connection to a buckle, the base of the intermediate corner joint is connected to the seal strip, the first side wall of the intermediate corner joint extends outward and is provided with a first engaging portion, and the second side wall of the intermediate corner joint extends into the insertion groove and engages with the insertion groove.

9. The seal strip according to claim 6, wherein a rubber cover is attached to one side of the notch, the rubber cover is provided with a second engaging portion, a buckle for a cable tie, an undercut portion, and a limiting portion, the second engaging portion and the buckle for a cable tie are used to secure the harness, the limiting portion and the undercut portion are used to connect to the door sheet metal, and the limiting portion is a projection or a groove.

10. The seal strip according to claim 6, characterized in that the second end body is housed in the mounting groove and the second end body is adhesively fixed in the mounting groove.

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