A contact type anti-pinch strip

Abstract

The present invention belongs to the technical field of automobile anti-pinch components, and provides a contact anti-pinch strip, including an upper part of a packaging material body, a lower part of a packaging material body, an upper conductive rubber and a lower conductive rubber, the lower part of the packaging material body is in an inverted U shape and has a mounting groove that matches the sheet metal, a reinforcement is embedded in the lower part of the packaging material body, the upper conductive rubber and the lower conductive rubber each pass through a conductive wire and are connected to an external controller, when the packaging material body is squeezed, the upper conductive rubber and the lower conductive rubber are squeezed and contacted with each other, a contact resistance is formed and the strip is electrically connected to the external controller through the conductive wire. The advantages of the present invention are that the contact surface is large, so that the contact resistance is smaller, the anti-pinch angle is large, the anti-pinch is more sensitive, and it is suitable for smaller space arrangements, such as automobile side door sheet metal, the initial resistance of the circuit can be selected in a wide range, and the resistance after contact is ≤400Ω; the development cost is low, it is easy to process, and it matches the car door more beautifully.

Description

Technical Field

[0001] The invention belongs to the field of automobile anti-pinch components and relates to a contact type anti-pinch strip. Background Art

[0002] In recent years, many countries and enterprises are vigorously developing and promoting new energy vehicles, especially electric vehicles. More and more car door systems (side doors and trunk doors) have electric opening and closing functions. However, many electric doors are not equipped with anti-pinch protection devices, which poses a great safety hazard. For example, when the door is closed, people accidentally put their fingers, arms, heads or other objects in the gap of the door. Since the clamping force when the door is closed is very large, it is very likely to cause harm to the person or even endanger life. Under this background, there is an urgent need for an anti-pinch protection device that is responsive, feasible to manufacture, easy to install and has a wide range of applications, so as to make the opening and closing of the door system safer and more reliable and eliminate the above-mentioned safety hazards. The mold manufacturing in the existing anti-pinch strip structure is relatively complicated, and double-sided tape needs to be pasted when used, which increases the development cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a contact anti-pinch strip with a large anti-pinch angle, high reaction sensitivity and suitable for smaller space arrangement in view of the current status of the prior art.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a contact anti-pinch strip, characterized in that it includes an upper packaging body, a lower packaging body, an upper conductive rubber and a lower conductive rubber. The lower packaging body is in an inverted U shape and has an installation groove that matches the sheet metal. A reinforcement part is embedded in the lower packaging body. The upper conductive rubber and the lower conductive rubber each have a conductive wire and are connected to an external controller. When the packaging body is squeezed, the upper conductive rubber and the lower conductive rubber are squeezed and contacted with each other to form a contact resistance and are electrically connected to the external controller through the conductive wire.

[0005] In the above-mentioned contact anti-pinch strip, both sides of the installation groove are provided with anti-slip lips, and the anti-slip lips are pressed against the sheet metal.

[0006] As a method, in the above-mentioned contact anti-pinch strip, a contact deformation cavity is provided in the upper part of the packaging body, an upper conductive rubber is located at the upper end of the contact deformation cavity, and a lower conductive rubber is located at the lower end of the contact deformation cavity. There are bending deformation arc angles on both sides of the contact deformation cavity, an upper convex head is provided at the connection between the upper end of the bending deformation arc angle and the upper conductive rubber, and a lower convex head is provided at the connection between the lower end of the bending deformation arc angle and the lower conductive rubber. The length of the upper contact surface is greater than the length between the upper convex heads on both sides, and the length of the lower contact surface is greater than the length between the lower convex heads on both sides.

[0007] As a second method, in the above-mentioned contact anti-pinch strip, the upper conductive rubber is semicircular and has an arc surface, a contact protrusion is provided at the lower end in the middle of the upper conductive rubber, the lower part of the lower conductive rubber is embedded in the upper part of the packaging body, the upper end of the lower conductive rubber has an inner concave arc surface portion matching the contact protrusion, and both sides of the lower conductive rubber have circular side contact portions that contact the arc surface of the upper conductive rubber.

[0008] As a third method, in the above-mentioned contact anti-pinch strip, the upper conductive rubber is semicircular and has an arc surface, a contact protrusion is provided at the lower end in the middle of the upper conductive rubber, the lower part of the lower conductive rubber is embedded in the upper part of the packaging body, the upper end of the lower conductive rubber has an inner concave arc surface portion matching the contact protrusion, both sides of the lower conductive rubber have circular side contact portions in contact with the arc surface of the upper conductive rubber, the space between the circular side contact portions on both sides of the lower conductive rubber and the arc surface has a deformation groove extending downward, and heightened steps are abutted against the bottom of both sides of the upper conductive rubber.

[0009] As a fourth method, in the above-mentioned contact anti-pinch strip, the upper conductive rubber and the lower conductive rubber are in a triangular shape, the lower conductive rubber extends laterally and is connected to both sides of the upper part of the packaging body, the lower end of the upper conductive rubber has an upper triangular arc surface, and the lower conductive rubber has a lower triangular arc surface, and the upper triangular arc surface and the lower triangular arc surface are in contact with each other.

[0010] In the above-mentioned contact anti-pinch strip, the bottom end of the lower part of the packaging body extends to one side with an elongated edge, and the upper part of the packaging body is connected to the elongated edge on one side with a covering edge, and the elongated edge and the covering edge form an inner hollow tube structure, which can further achieve the effect of sealing and reducing noise.

[0011] As a fifth method, in the above-mentioned contact anti-pinch strip, the upper conductive rubber and the lower conductive rubber are in a triangular shape, the lower end of the upper conductive rubber has an upper triangular arc surface, the lower conductive rubber has a lower triangular arc surface, the upper triangular arc surface and the lower triangular arc surface are in contact with each other, and there is an expansion space between the upper side of the packaging body and the lower conductive rubber.

[0012] Compared with the prior art, the advantages of the present invention are that the contact surface is large, so that the contact resistance is smaller, the anti-pinch angle is large, the anti-pinch is more sensitive, and it is suitable for smaller space layout, such as automobile side door sheet metal. The initial resistance of the loop can be selected in a wide range, and the resistance after contact is ≤400Ω; the development cost is low, the processing is convenient, and it matches the car door more beautifully. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the first cross-sectional structure of the contact-type anti-pinch strip;

[0014] Figure 2This is a schematic diagram of the second cross-sectional structure of the contact-type anti-pinch device;

[0015] Figure 3 This is a schematic diagram of the third cross-sectional structure of the contact-type anti-pinch device;

[0016] Figure 4 This is a schematic diagram of the fourth cross-sectional structure of the contact-type anti-pinch device;

[0017] Figure 5 This is a schematic diagram of the fifth cross-sectional structure of the contact anti-pinch device. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is necessary to understand that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0020] In the figure, the upper part of the packaging body 100; the bending deformation arc angle 1001; the upper protrusion 1002; the lower protrusion 1003; the deformation groove 1004; the increased step 1005; the expansion space 1006; the upper conductive rubber 200; the upper contact surface 2001; the arc surface 2002; the contact protrusion 2003; the upper triangular arc surface 2004; the lower conductive rubber 300; the lower contact surface 3001; the inner concave arc surface 3002; the round side contact portion 3003; the lower triangular arc surface 3004; the lower part of the packaging body 400; the installation groove 500; the reinforcement 600; the anti-slip lip 700; the conductive wire 800; the contact deformation cavity 900; the extension edge 9001; the covering edge 9002.

[0021] Example 1

[0022] like Figure 1As shown, the contact anti-pinch device mainly includes an upper part 100 of the packaging material body, a lower part 400 of the packaging material body, an upper conductive rubber 200, and a lower conductive rubber 300. The lower part 400 of the packaging material body is in an inverted U shape and has a mounting groove 500 that matches the sheet metal. A reinforcing member 600 is embedded in the lower part 400 of the packaging material body. Here, the reinforcing member 600 can enhance the overall strength of the entire contact anti-pinch strip. The mounting groove 500 is used to be installed with the entire door frame, which is stable and reliable. In order to prevent it from falling out, anti-slip lips 700 are provided on both sides of the mounting groove 500. The anti-slip lips 700 are attached to the sheet metal to prevent it from falling out from the mounting groove 500. The upper conductive rubber 200 and the lower conductive rubber 300 are provided. Each conductive rubber 300 is passed through a conductive wire 800 and is connected to an external controller. A contact deformation cavity 900 is provided in the upper part 100 of the package body. The upper conductive rubber 200 is located at the upper end of the contact deformation cavity 900, and the lower conductive rubber 300 is located at the lower end of the contact deformation cavity 900. When the package body is squeezed, the upper conductive rubber 200 and the lower conductive rubber 300 are squeezed and contacted with each other to form a contact resistance and are electrically connected to the external controller through the conductive wire 800. When the upper conductive rubber 200 and the lower conductive rubber 300 are squeezed and contacted with each other, a contact resistance is formed. When the resistance value is less than a certain fixed value, the door controller ECU determines that it is anti-pinch. The control motor power supply is immediately cut off, and the door stops moving. The anti-pinch device also plays an anti-pinch role. There are curved deformation arc angles 1001 on both sides of the contact deformation cavity 900. The upper end of the curved deformation arc angle 1001 is connected with the upper conductive rubber 200 with an upper convex head 1002, and the lower end of the curved deformation arc angle 1001 is connected with the lower conductive rubber 300 with a lower convex head 1003. The length of the upper contact surface 2001 is greater than the length between the upper convex heads 1002 on both sides, and the length of the lower contact surface 3001 is greater than the length between the lower convex heads 1003 on both sides. The upper convex head 1002 and the lower convex head 1003 are used here. The upper conductive rubber 200 and the lower conductive rubber 300 are conveniently fixedly connected, and the contact length position between the upper contact surface 2001 and the lower contact surface 3001 can be significantly increased, so that the entire anti-pinch effect is more stable and reliable, and the anti-pinch angle of the entire anti-pinch strip is large (≥140°); the reaction is more sensitive (contact reaction force ≤25N); it is suitable for smaller space layout, such as automobile side door sheet metal; the initial resistance of the loop can be selected in a wide range (such as 1.2kΩ / 3.0kΩ / 5.6kΩ / 10KΩ±5% and other different resistance values), and the resistance after contact is ≤400Ω; the development cost is low, it is easy to process, and it matches the car door more beautifully.

[0023] Example 2

[0024] As an improvement, such as Figure 2As shown, the upper conductive rubber 200 is semicircular and has an arc surface 2002. A contact protrusion 2003 is provided at the lower end of the middle position of the upper conductive rubber 200. The lower part of the lower conductive rubber 300 is embedded in the upper part 100 of the packaging body. The upper end of the lower conductive rubber 300 has an inner concave arc surface 3002 matched with the contact protrusion 2003. Both sides of the lower conductive rubber 300 have round side contact parts 3003 in contact with the arc surface 2002 of the upper conductive rubber 200. Here, since the arc surface 2002 of the entire upper conductive rubber 200 is fully covered with both sides of the contact deformation cavity 900, the inner concave arc surface 3002, the contact protrusion 2003, the round side contact part 3003 and the arc surface 2002 can ensure contact from multiple angles, which can significantly increase the anti-pinch angle, which can be close to 180°, and the anti-pinch effect is obvious.

[0025] Example 3

[0026] As an optimization, Figure 3 As shown, the upper conductive rubber 200 is semicircular and has an arc surface 2002. A contact protrusion 2003 is provided at the lower end of the middle position of the upper conductive rubber 200. The lower part of the lower conductive rubber 300 is embedded in the upper part 100 of the package body. The upper end of the lower conductive rubber 300 has an inner concave arc surface 3002 matched with the contact protrusion 2003. Both sides of the lower conductive rubber 300 have round side contact parts 3003 that contact the arc surface 2002 of the upper conductive rubber 200. Most of this embodiment The structure is the same as that of Example 4, except that the space between the round side contact parts 3003 on both sides of the lower conductive rubber 300 and the arc surface 2002 has a deformation groove 1004 extending downward, and the bottom of both sides of the upper conductive rubber 200 is abutted with a heightened step 1005. Here, the deformation groove 1004 can ensure that the arc surface 2002 and the round side contact part 3003 are more easily deformed when in contact, and at the same time, it can ensure contact from multiple angles, which can significantly increase the anti-pinch angle.

[0027] Example 4

[0028] As an optimization, Figure 4As shown, the upper conductive rubber 200 and the lower conductive rubber 300 are triangular in shape, the lower conductive rubber 300 extends horizontally and is connected to both sides of the upper part 100 of the packaging body, the lower end of the upper conductive rubber 200 has an upper triangular arc surface 2004, and the lower conductive rubber 300 has a lower triangular arc surface 3004, the upper triangular arc surface 2004 and the lower triangular arc surface 3004 are in contact with each other, and the upper triangular arc surface 2004 and the lower triangular arc surface 3004 can ensure the contact stability of the side extrusion shape, which is suitable for a smaller space arrangement, the bottom end of the lower part 400 of the packaging body extends to one side with an extended side 9001, and a covering side 9002 is connected to the extended side 9001 on one side of the upper part of the packaging body, and the extended side 9001 and the covering side 9002 constitute an inner hollow tube structure, which can further achieve the effect of sealing and reducing noise.

[0029] Example 5

[0030] Most of the structures of this embodiment are the same as those of embodiment 4. Figure 5 As shown, the upper conductive rubber 200 and the lower conductive rubber 300 are in a triangular shape, the lower end of the upper conductive rubber 200 has an upper triangular arc surface 2004, and the lower conductive rubber 300 has a lower triangular arc surface 3004. The upper triangular arc surface 2004 and the lower triangular arc surface 3004 are in contact with each other. The difference is that there is an expansion space 1006 between the side of the upper part 100 of the packaging body and the lower conductive rubber 300, which can ensure the contact stability of the side extrusion. The expansion space 1006 can significantly increase the deformation elasticity of the upper triangular arc surface 2004, which is suitable for smaller space layout.

[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the scope defined by the spirit of the present invention.

Claims

1. A contact type anti-pinch strip, characterized in that: The invention comprises an upper part of a packaging material body, a lower part of a packaging material body, an upper conductive rubber and a lower conductive rubber. The lower part of the packaging material body is in an inverted U shape and has a mounting groove matched with a sheet metal. A reinforcing piece is embedded in the lower part of the packaging material body. The upper conductive rubber and the lower conductive rubber each pass through a conductive wire and are connected to an external controller. When the packaging material body is squeezed, the upper conductive rubber and the lower conductive rubber are squeezed and contacted with each other to form a contact resistance and are electrically connected to the external controller through the conductive wire. Anti-slip lips are provided on both sides of the mounting groove, and the anti-slip lips are abutted against the sheet metal. A contact deformation cavity is provided in the upper part of the packaging material body, the upper conductive rubber is located at the upper end of the contact deformation cavity, and the lower conductive rubber is located at the lower end of the contact deformation cavity. There are bending deformation arc angles on both sides of the contact deformation cavity. An upper convex head is provided at the connection between the upper end of the bending deformation arc angle and the upper conductive rubber, and a lower convex head is provided at the connection between the lower end of the bending deformation arc angle and the lower conductive rubber. The length of the upper contact surface is greater than the length between the upper convex heads on both sides, and the length of the lower contact surface is greater than the length between the lower convex heads on both sides.

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