Wire fastener and wire harness positioning system

Abstract

The utility model provides a wire fastener and a wire harness positioning system, and the wire fastener comprises a connecting unit which comprises a body part, a first extension part and a second extension part; the first extension part is formed by outwards extending the outer edge of one axial end of the body part in the radial direction; the second extension part is formed by outwards extending the outer edge of the other axial end of the body part in the radial direction; a preset distance is formed between the first extension part and the second extension part, so that an accommodating groove is formed; the outer diameter of the second extension part is smaller than that of the first extension part; the wire buckling unit is connected to one end, deviating from the first extension part, of the second extension part; the outer diameter of the wire buckling unit is not greater than that of the second extension part; the wire buckling unit is provided with a through hole in the direction perpendicular to the axis of the body part, and the through hole is used for collecting the wire harness. The wire fastener provided by the utility model adopts a 360-degree circumferential pressing rivet structure, so that the connection strength of the wire fastener can be effectively improved, and the continuous connection effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fasteners, and in particular relates to a wire fastener and a wire harness positioning system. Background Art

[0002] A large number of wires are used in electronic circuits, and in order to ensure the overall stability of the electronic circuits, wire clips are generally used to fix the wire harness (i.e. the wires that are bundled together). Figure 1 As shown, a conventional wire fastener includes a wire fastener unit 2 and a connecting unit 1 integrally connected to the wire fastener unit 2. The wire fastener unit 2 is provided with a through hole 21 for gathering the wire harness. The connecting unit 2 is used to press-rivet a carrier 3 outside the circuit, thereby ensuring that the wire harness is fixed in a predetermined desired position. However, since the connecting unit 1 is generally rectangular in structure, only two opposite sides of it extend radially outward to form an extension portion for subsequent press-riveting connection with the carrier 3. Therefore, it must be aligned with the carrier 3 before press-riveting. After it is riveted to the carrier 3, the remaining portion cannot form a riveted seal structure with the carrier 3. In addition, with the extension of usage time, temperature cycling changes, etc., its connection with the carrier is prone to failure, which in turn affects the stability of the electronic circuit. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the main purpose of the present invention is to provide a wire fastener and a wire harness positioning system. The provided wire fastener adopts a 360° circumferential riveting structure, which can ensure the sealing performance after riveting connection with the carrier, while effectively improving its own connection strength and maintaining the connection effect.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The utility model provides a wire fastener, which includes:

[0006] The connecting unit includes a main body, a first extension, and a second extension; the first extension is formed by extending radially outward from an outer edge of one axial end of the main body; the second extension is formed by extending radially outward from an outer edge of the other axial end of the main body; a predetermined distance is provided between the first extension and the second extension to form a receiving groove; the outer diameter of the second extension is smaller than the outer diameter of the first extension;

[0007] A wire clip unit is connected to one end of the second extension portion that faces away from the first extension portion; the outer diameter of the wire clip unit is not greater than the outer diameter of the second extension portion; the wire clip unit is provided with a through hole in a direction perpendicular to the axis of the main body portion, and the through hole is used to gather the wire harness.

[0008] As a further description of the above technical solution, the thread buckle unit has at least two straight sides parallel to the axis of the main body, and the two straight sides are arranged opposite to each other;

[0009] The through hole vertically passes through the two straight side portions.

[0010] As a further description of the above technical solution, the cross-section of the buckle line unit along the direction perpendicular to the axis of the main body is oval or square.

[0011] As a further description of the above technical solution, the cross section of the through hole is circular or non-circular.

[0012] As a further description of the above technical solution, the side wall of the through hole is further provided with an opening portion, and the opening portion communicates with the through hole and the outside of the buckle line unit.

[0013] As a further description of the above technical solution, the connecting unit and the buckle line unit are connected in an integral manner or in a split manner.

[0014] As a further description of the above technical solution, the wire fastener is made of plastic, aluminum, copper, carbon steel or stainless steel.

[0015] The utility model also provides a wiring harness positioning system, comprising:

[0016] a carrier having a prefabricated hole;

[0017] A wire fastener, comprising a connecting unit and a wire fastening unit; wherein,

[0018] The connecting unit includes a main body, a first extension portion, and a second extension portion; the first extension portion is formed by extending radially outward from an outer edge of one axial end of the main body; the second extension portion is formed by extending radially outward from an outer edge of the other axial end of the main body; a preset distance is formed between the first extension portion and the second extension portion;

[0019] The wire-holding unit is connected to an end of the second extension portion away from the first extension portion; the wire-holding unit is provided with a through hole in a direction perpendicular to the axis of the main body portion, and the through hole is used to gather the wire harness;

[0020] The outer diameter of the main body is smaller than the diameter of the preformed hole of the carrier, the outer diameter of the second extension and the diameter of the preformed hole are both smaller than the outer diameter of the first extension, and the outer diameter of the thread-locking unit is no larger than the outer diameter of the second extension;

[0021] The carrier is riveted to the wire fastener, and the deformed portion of the carrier after plastic deformation is accommodated between the first extension portion and the second extension portion.

[0022] As a further description of the above technical solution, the ratio of the outer diameter of the second extension portion to the hole diameter of the prefabricated hole is not greater than 1.05.

[0023] By means of the above technical solutions, the outstanding effects of the present invention are:

[0024] 1. The wire fastener provided by the present invention still includes a connection unit for positioning and installing with an external carrier, and a wire fastening unit. The wire fastening unit is still provided with a through hole to gather the wire harness. The difference is that the first extension portion and the second extension portion included in the connection unit are respectively formed by the axial ends of the main body extending radially outward, and there is a preset distance between the two extension portions, thereby forming a circumferentially extending groove together with the middle portion of the main body, and then when riveted with the carrier, it can accommodate the deformed portion of the carrier after plastic deformation, that is, the deformed portion of the carrier after plastic deformation is embedded in the groove. In this way, a 360° circumferential sealing connection between the connection unit and the carrier is achieved. Compared with the design of the prior art in which the connection unit and the carrier can only achieve a partial riveting connection, the sealing effect of the connection structure formed by the two is better. At the same time, according to uncertainty evaluation, compared with the design of partial riveting connection, its connection strength is also improved by at least 80%, and it is not easy to lose the connection effect with the extension of use time and temperature cycle.

[0025] 2. In the wire fastener provided by the present invention, the outer diameter of the second extension portion included in the connecting unit is smaller than the outer diameter of the first extension portion, and the outer diameter of the wire fastener unit is not larger than the outer diameter of the second extension portion, thereby ensuring that the wire fastener and the carrier can still be connected by conventional riveting without the need for additional process assistance to enhance the sealing effect, that is, first align the end of the wire fastener unit away from the connecting unit with / penetrate the prefabricated hole on the carrier, and then pressurize the connecting unit from the end of the first extension portion away from the second extension portion, so that the part of the material of the carrier located under the first extension portion is deformed under the force, and finally flows into the receiving groove to form a deformed part that is tightly fitted with the receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a centerline fastener in the prior art;

[0027] Figure 2 This is a structural diagram of a middle line fastener in the first embodiment of the present utility model;

[0028] Figure 3 This is a front view of the thread fastener in the first embodiment of the present utility model;

[0029] Figure 4 This is a cross-sectional view of the wire fastener in the first embodiment of the present invention;

[0030] Figure 5 This is a structural diagram of the second embodiment of the utility model.

[0031] Figure 6 This is a structural diagram of a middle line fastener according to a third embodiment of the present utility model;

[0032] Figure 7 A cross-sectional view of a thread fastener in a third embodiment of the present invention;

[0033] Figure 8 This is another cross-sectional view of the middle line fastener according to the third embodiment of the present invention;

[0034] Figure 9 A cross-sectional view of the wire harness positioning system in the first embodiment of the present utility model;

[0035] Figure 10 This is another cross-sectional view of the wire harness positioning system in the first embodiment of the present utility model;

[0036] Figure 11 A cross-sectional view of a wire harness positioning system in a third embodiment of the present utility model;

[0037] Figure 12 This is another cross-sectional view of the wire harness positioning system in the third embodiment of the present invention.

[0038] Description of Figure Numbers:

[0039] 1. Connecting unit; 11. Main body; 12. First extension portion; 13. Second extension portion; 2. Thread-fastening unit; 21. Through hole; 22. Straight edge portion; 23. Opening portion; 3. Carrying member; 31. Deformation portion. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0042] See also Figures 2 to 8 The utility model discloses a wire fastener, which includes:

[0043] The connecting unit 1 includes a main body 11, a first extension 12, and a second extension 13. The first extension 12 is formed by extending radially outward from an outer edge of one axial end of the main body 11. The second extension 13 is formed by extending radially outward from an outer edge of the other axial end of the main body 11. The first extension 12 and the second extension 13 are spaced apart by a predetermined distance to form a receiving groove. The outer diameter of the second extension 13 is smaller than the outer diameter of the first extension 12.

[0044] The wire clip unit 2 is connected to the end of the second extension portion 13 away from the first extension portion 12; the outer diameter of the wire clip unit 2 is not greater than the outer diameter of the second extension portion 13; the wire clip unit 2 is provided with a through hole 21 along a direction perpendicular to the axis of the main body portion 11, and the through hole 21 is used to gather the wire harness.

[0045] In the aforementioned arrangement, the wire fastener still includes a connecting unit 1 for positioning and mounting with an external carrier 3, and a wire retaining unit 2. The wire retaining unit 2 still includes a through-hole 21 for collecting the wire harness. However, the connecting unit 1 includes a first extension 12 and a second extension 13, each extending radially outward from the axial ends of the main body 11. The two extensions are spaced a predetermined distance apart, thereby forming a circumferentially extending recess with the central portion of the main body. This recess accommodates the deformed portion 31 of the carrier 3 after plastic deformation during riveting. This recess allows the deformed portion 31 of the carrier 3 to be embedded in the recess. This achieves a 360° circumferentially sealed connection between the connecting unit 1 and the carrier 3, resulting in a more effective sealing structure than conventional designs in which the connecting unit 1 and the carrier 3 are only partially riveted. Furthermore, uncertainty assessments indicate that the connection strength is at least 80% higher than with a partially riveted connection, and the connection is less susceptible to loss of effectiveness over time and temperature cycling. Among them, the outer diameter of the second extension part 13 is smaller than the outer diameter of the first extension part 12, and the outer diameter of the wire fastener unit 2 is not larger than the outer diameter of the second extension part 13, which ensures that the wire fastener and the carrier 3 can still be connected by conventional riveting without the need for additional process assistance to enhance the sealing effect, that is, first align the end of the wire fastener unit 2 away from the connecting unit 1 with / penetrate the prefabricated hole on the carrier 3, and then pressurize the connecting unit 1 from the end of the first extension part 12 away from the second extension part 13, so that the part of the material of the carrier 3 located under the first extension part 12 can be deformed under the force, and finally flow into the groove to form a deformation part 31 that is tightly fitted with the groove.

[0046] See also Figures 2 to 4 Specifically, in the first embodiment, the cross-section of the wire clip unit 2 along the direction perpendicular to the axis of the main body 11 is in the shape of a waist circle, and it has two straight sides 22 parallel to the axis of the main body 11. The two straight sides 22 are arranged opposite to each other, and two arc-shaped portions are connected between the two straight sides 22 at intervals. The through hole 21 directly and vertically penetrates the two straight sides 22 to allow for the subsequent gathering of the wire harness, thereby achieving a regular arrangement of the electronic circuits. Of course, in other embodiments, the straight sides 22 included in the wire clip unit 2 can also be other numbers, such as 4, and no arc-shaped portion is provided, that is, the 4 straight sides 22 are connected end to end in sequence. At this time, the cross-section of the wire clip unit 2 along the direction perpendicular to the axis of the main body 11 is square.

[0047] Specifically, in this embodiment, the through-hole 21 is a hollow hole with a circular cross-section, which is more suitable for collecting and inserting the wiring harness. Of course, in other embodiments, due to the non-circular outer periphery of some wiring harnesses, the cross-section of the through-hole 21 can also be adaptively designed, such as square, oval, etc., and the hole wall can also be formed with threads. It should be understood that according to actual needs, the through-hole 21 can be configured as a unidirectional opening or a bidirectional opening.

[0048] Specifically, in this embodiment, the connection unit 1 and the buckle line unit 2 are connected in an integral manner, and for example, they can be directly formed by cold heading or machining.

[0049] Specifically, in this embodiment, the wire fastener is made of carbon steel. Of course, in other embodiments, the material used for the wire fastener may also be plastic, aluminum, copper, stainless steel or other non-ferrous metals.

[0050] See also Figure 5 Specifically, in the second embodiment, unlike the first embodiment, the side wall of the through hole 21 is further provided with an opening portion 23 connecting the through hole 21 with the outside of the buckle unit 2, and the opening portion 23 and the through hole 21 cooperate with each other to be suitable for some wire harnesses with irregular cross-sections. More specifically, in this embodiment, the opening portion 23 is in a state of gradually shrinking from the side of the buckle unit 2 away from the connection unit 1 toward the hole wall of the through hole 21. Of course, in other embodiments, the opening portion 23 may also be in other states, such as making its cross-section a regular rectangle. In addition, it should be understood that the direction of the opening portion 23 toward one end of the outside of the buckle unit 2 is not restricted, and it can be set according to the actual adaptation requirements of the wire harness gathering.

[0051] See also Figures 6 to 8 Specifically, in the third embodiment, unlike the first embodiment, the connection unit 1 and the thread fastener unit 2 are connected in a split-type manner. For example, a salad hole and a connection point located outside the lower portion of the salad hole are formed inside the connection unit 1, and a snap-on protrusion is formed on the upper portion of the thread fastener unit 2 adjacent to the second extension 13, so that the connection point can be connected and locked with the inner wall of the thread fastener unit 2 located on its outer periphery, and the snap-on protrusion can also be snapped into the salad hole, so that the connection unit 1 and the thread fastener unit 2 can be combined to form the thread fastener. Of course, in other embodiments, the connection unit 1 and the thread fastener unit can also be combined into the thread fastener using other split-type connection styles.

[0052] Specifically, the present invention further provides a wiring harness positioning system, comprising a carrier 3 and a wire fastener, wherein the carrier 3 has a prefabricated hole, and the wire fastener comprises a connecting unit 1 and a wire fastening unit 2; wherein the connecting unit 1 comprises a main body 11, a first extension 12 and a second extension 13; the first extension 12 is formed by the outer edge of one end of the main body 11 extending radially outward; the second extension 13 is formed by the outer edge of the other end of the main body 11 extending radially outward; the first extension 12 and the second extension 13 are connected to each other. There is a preset distance between the extensions 13; the line-locking unit 2 is connected to the end of the second extension 13 away from the first extension 12; the line-locking unit 2 is provided with a through hole 21 in a direction perpendicular to the axis of the main body 11, and the through hole 21 is used to gather the wire harness; the outer diameter of the main body 11 is smaller than the aperture of the preformed hole of the carrier 3, the outer diameter of the second extension 13 and the aperture of the preformed hole are both smaller than the outer diameter of the first extension 12, and the outer diameter of the line-locking unit 2 is not larger than the outer diameter of the second extension 13. Figures 9 to 12 As shown, no matter the connecting unit 1 and the buckle unit 2 of the wire fastener are connected as an integral whole or as a separate part, in the process of riveting the carrier 3 to the wire fastener, the carrier 3 with the prefabricated hole can be placed on the installation mold first, so that the end of the buckle unit 2 of the wire fastener away from the first extension part 12 is aligned with the prefabricated hole, and passed through the prefabricated hole from top to bottom, and then the second extension part 13 is inserted into the prefabricated hole, and pressure is continued to be applied from the end of the first extension part 12 away from the second extension part 13, and the first extension part 12 will squeeze the surrounding part of the prefabricated hole of the carrier 3, so that the material of this part is subjected to force and flows into the groove jointly formed by the first extension part 12 and the second extension part 13, thereby forming a deformation part 31 that is tightly fitted with the groove, and at the same time, the circumferential outer edge of the first extension part 12 will also be embedded in the carrier 3. The groove extends circumferentially, connecting end to end. This creates a high-strength, sealed connection between the carrier 3 and the cable tie, ensuring a continuous, sealed connection that resists loss of connection over time and temperature cycles. This ensures the cable tie's subsequent positioning accuracy and durability for the gathered wire harness. Specifically, the ratio of the outer diameter of the second extension 13 to the diameter of the preformed hole is no greater than 1.05.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wire fastener, characterized in that: include: The connecting unit includes a main body, a first extension, and a second extension; the first extension is formed by extending radially outward from an outer edge of one axial end of the main body; the second extension is formed by extending radially outward from an outer edge of the other axial end of the main body; a predetermined distance is provided between the first extension and the second extension to form a receiving groove; the outer diameter of the second extension is smaller than the outer diameter of the first extension; A wire clip unit is connected to one end of the second extension portion that faces away from the first extension portion; the outer diameter of the wire clip unit is not greater than the outer diameter of the second extension portion; the wire clip unit is provided with a through hole in a direction perpendicular to the axis of the main body portion, and the through hole is used to gather the wire harness.

2. The wire fastener according to claim 1, characterized in that: The thread buckle unit has at least two straight sides parallel to the axis of the main body, and the two straight sides are arranged opposite to each other; The through hole vertically passes through the two straight side portions.

3. The wire fastener according to claim 2, characterized in that: The cross section of the buckle line unit along a direction perpendicular to the axis of the main body is oval or square.

4. The wire fastener according to claim 1, wherein: The cross section of the through hole is circular or non-circular.

5. The wire fastener according to claim 1, characterized in that: The side wall of the through hole is further provided with an opening portion, and the opening portion communicates with the through hole and the outside of the buckle line unit.

6. The wire fastener according to claim 1, characterized in that: The connecting unit and the buckle line unit are connected in an integral manner or in a split manner.

7. The wire fastener according to claim 1, characterized in that: The wire fastener is made of plastic, aluminum, copper, carbon steel or stainless steel.

8. A wire harness positioning system, characterized in that: include: a carrier having a prefabricated hole; A wire fastener, comprising a connecting unit and a wire fastening unit; wherein, The connecting unit includes a main body, a first extension portion, and a second extension portion; the first extension portion is formed by extending radially outward from an outer edge of one axial end of the main body; the second extension portion is formed by extending radially outward from an outer edge of the other axial end of the main body; a preset distance is formed between the first extension portion and the second extension portion; The wire-holding unit is connected to an end of the second extension portion away from the first extension portion; the wire-holding unit is provided with a through hole in a direction perpendicular to the axis of the main body portion, and the through hole is used to gather the wire harness; The outer diameter of the main body is smaller than the diameter of the preformed hole of the carrier, the outer diameter of the second extension and the diameter of the preformed hole are both smaller than the outer diameter of the first extension, and the outer diameter of the thread-locking unit is no larger than the outer diameter of the second extension; The carrier is riveted to the wire fastener, and the deformed portion of the carrier after plastic deformation is accommodated between the first extension portion and the second extension portion.

9. The wire harness positioning system according to claim 8, characterized in that: The ratio of the outer diameter of the second extension portion to the diameter of the prefabricated hole is not greater than 1.05.

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