CN111525287A

CN111525287A - Fixing device for doubling at joint and doubling structure using same

Info

Publication number: CN111525287A
Application number: CN202010502768.4A
Authority: CN
Inventors: 何喜新
Original assignee: Shantou Klovef Electronic Co ltd
Current assignee: Shantou Klovef Electronic Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-08-11

Abstract

The invention aims to provide a fixing device for doubling at a joint and a doubling structure applying the fixing device. The fixing device comprises a fixing piece main body used for connecting a first lead, and a clamping component used for clamping a second lead is arranged on the side wall of the fixing piece main body. When the fixing piece is used, the first lead is fixed through the fixing piece main body, the end part of the first lead is firstly inserted into the second lead, namely the wiring hole of the original lead, and then the fixing piece main body of the first lead is clamped on the second lead, namely the original lead through the clamping part, so that the relative positions of the first lead and the second lead are quickly and firmly positioned, the quick wire doubling and installation are convenient, and the length of the first lead and the second lead between the fixing piece main body and the wiring hole is fixed at the moment, so that the end part of the first lead cannot be separated from the wiring hole even if the first lead and the second lead are vibrated, and the electric connection reliability is ensured.

Description

Fixing device for doubling at joint and doubling structure using same

Technical Field

The invention belongs to the technical field of automobile spare and accessory parts, and particularly relates to a fixing device for doubling at a joint and a doubling structure using the fixing device.

Background

Along with the improvement of the living standard of people, the popularization rate of automobiles is higher and higher, and people pursue personalized comfort of the automobiles. At present, in order to realize personalized functions such as locking an automatic window, remotely lifting the window, locking an automatic folding rearview mirror and the like, some car owners can choose to additionally install corresponding controllers. This kind of controller, through the pencil connect with male end joint and female end joint, when installing additional, as shown in fig. 1, through in the wiring department that the former car corresponds the function, pull down the male end plug a of the functional connection pencil a of former car from female end joint M1 of the function switch department of former car, pull down the female end joint b of functional connection pencil a from the male end joint (not shown in the figure) on the function module of former car, then connect male end joint a1 of controller C to female end joint M1 of the function switch department of former car, and connect the female end joint of controller C to the male end joint (not shown in the figure) on the function module of former car, it is more convenient to repack. In fig. 1, the entire harness a1 connecting the harness a and the controller C for the original vehicle function is shown for visual comparison. However, in the existing structure for adding the controller, the whole harness a1 of the controller C needs to be replaced by the whole original vehicle function connection harness a, the harness cost is high, and the harness cost is high in the adding cost of the whole controller C. However, the controller C actually changes only the signal transceiving of a local one or several wires in the functional wire harness, and therefore, in fact, the controller C can realize the function addition only by doubling one or several wires with the wires in the original functional wire harness, and does not need the replacement of the whole functional wire harness.

At present, a common wire doubling mode generally maintains the position structure of a wire connecting hole at the end part and the joint of an original wire unchanged, a part of an outer skin of a certain section of the original wire is broken to expose an inner core of the original wire, and then the doubled wire is electrically connected with the inner core of the original wire. The wire doubling mode has the defect of instability, and the doubled wire is easy to separate from the inner core of the original wire to cause failure due to vibration.

Disclosure of Invention

The invention aims to provide a fixing device for doubling at a joint, which can greatly save the cost of a wire harness for additionally installing a controller and ensure the reliability of electric connection.

The fixing device for doubling at the joint comprises a fixing piece main body for connecting a first lead, wherein the side wall of the fixing piece main body is provided with a clamping part for clamping a second lead.

When the fixing piece is used, the first lead is fixed through the fixing piece main body, the end part of the first lead is firstly inserted into the second lead, namely the wiring hole of the original lead, and then the fixing piece main body of the first lead is clamped on the second lead, namely the original lead through the clamping part, so that the relative positions of the first lead and the second lead are quickly and firmly positioned, the quick wire doubling and installation are convenient, and the length of the first lead and the second lead between the fixing piece main body and the wiring hole is fixed at the moment, so that the end part of the first lead cannot be separated from the wiring hole even if the first lead and the second lead are vibrated, and the electric connection reliability is ensured.

Furthermore, the side wall of the fixing part main body is provided with a side wall groove for positioning a second lead, and the clamping surface of the clamping part is provided with a clamping surface groove opposite to the side wall groove. Therefore, when the clamping component clamps the second wire, the second wire is relatively clamped through the side wall groove and the clamping surface groove, the clamping contact area of the second wire is increased, and the clamping firmness is increased.

Furthermore, the clamping part comprises an L-shaped clamping buckle, the L-shaped clamping buckle comprises a clamping wall and a clamping wall, and the clamping wall is connected with the side wall of the fixing piece main body through a folded edge. When the second wire is clamped, the L-shaped clamp is turned over for 180 degrees along the folded edge, and the clamping wall of the L-shaped clamp are respectively attached to the two side walls of the fixing piece main body, so that the second wire is quickly clamped and positioned by the clamping wall.

Further, the joint wall is provided with a hollowed-out positioning hole, and a positioning buckle matched with the hollowed-out positioning hole is arranged on the side wall of the fixing part main body. The cooperation of fretwork locating hole and location buckle can make the joint wall lock spacing fast.

Further, the end of the clamping wall is bent outwards. The outward bending part of the clamping wall can be used for conveniently and quickly releasing the clamping of the clamping part on the second wire during maintenance, so that the quick maintenance is realized.

Furthermore, a plurality of anti-skidding convex ribs are arranged on the clamping surface groove along the length direction. The friction force in the length direction of the second wire during clamping can be increased through the anti-skidding convex ribs, and the clamping firmness degree is further increased.

Further, as another preferable structure of the clamping member, the clamping member is a cable tie.

The invention also provides a fixing structure applying the fixing device, which comprises the fixing device and is characterized by also comprising a joint, a first lead and a second lead, wherein a wiring hole is formed in the joint, the end part of the second lead is fixed in the wiring hole, a wiring terminal is arranged at the end part of the first lead, and the wiring terminal is provided with a section of insertion part which can be inserted in a gap between the end part of the second lead and the wiring hole.

According to the fixing structure, the wiring terminal and the inserting part of the wiring terminal are arranged, so that the inserting part can be conveniently inserted into a gap between the original lead and the wiring hole, the fixing structure is suitable for a second lead, namely a small gap in interference fit between the end part of the original lead and the wiring hole, and the fixing structure is convenient to assemble on the premise of ensuring reliable electric connection.

Further, as a preferred embodiment, a through hole through which the first lead passes is formed in the fixing member main body.

Further, as another preferred embodiment, the fixing member main body is injection-molded on the first wire.

Drawings

Fig. 1 is a schematic diagram comparing an installation structure of a conventional functional connection harness and a controller of an original vehicle.

Fig. 2 is a schematic structural view of a fixing device according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of the fixing device according to embodiment 1 of the present invention when the holding member holds the fixing device.

Fig. 4 is a schematic view of a positioning structure of the fixing device according to embodiment 1 of the present invention.

Fig. 5 is a schematic view of a positioning structure of a fixing device in embodiment 2 of the present invention.

Fig. 6 is a schematic radial cross-sectional view of the fixation device of the present invention.

Fig. 7 is a schematic structural view of the fixing structure of the present invention.

Fig. 8 is a schematic structural view of the connection terminal of the present invention.

Fig. 9 is a use state diagram of the fixing structure of the present invention.

Fig. 10 is a schematic view of another preferred structure of the clamping member of the present invention.

In which the figures are as follows: A. a functional connection harness; a1, a controller harness; C. a controller; a. a male end connector for functionally connecting a wiring harness; b. a female terminal connector for functionally connecting a wire harness; a1, male end connector of controller; b1, a female end connector of the controller; m1, a female end joint at the original vehicle function switch; 1. a fixing member main body; 11. a sidewall recess; 12. positioning a buckle; 13. a through hole; 2. a clamping member; 20. an L-shaped clip; 201. a clamping wall; 2011. hollowing out the positioning holes; 202. a clamping wall; 203. folding edges; 21. a clamping surface; 211. a clamping surface groove; 212. anti-skid convex ribs; 3. a joint; 31. a wiring hole; 4. a wiring terminal; 5. and (6) binding the belt.

Detailed Description

The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.

Referring to fig. 2 to 10, the fixing device for doubling at a joint according to the present invention includes a holder body 1 for connecting a first wire D1, and a clamping member 2 for clamping a second wire D2 is provided at a sidewall of the holder body 1.

When the fixing piece is used, the fixing piece body 1 is used for fixing the first lead D1, the end part of the first lead D1 is firstly inserted into the second lead D2, namely the wiring hole 31 of the original lead, and then the fixing piece body 1 of the first lead D1 is clamped on the second lead D2, namely the original lead through the clamping part 2, so that the relative positions of the first lead D1 and the second lead D2 are quickly and firmly positioned, not only is the quick wire doubling and installing convenient, but also because the lengths of the first lead D1 and the second lead D2 between the fixing piece body 1 and the wiring hole 31 are fixed at the moment, as shown in figure 7, the end part of the first lead D1 cannot be separated from the wiring hole 31 even if vibration occurs, and the electric connection reliability is ensured. In the using process, the fixed objects of the fixing body 1 and the clamping component 2 can be interchanged as required, that is, the fixing body 1 can also be firstly fixed on the second lead D2, then the end part of the first lead D1 is inserted into the second lead D2, namely the wiring hole 31 of the original lead, and then the fixing body 1 is clamped on the first lead D1 through the clamping component 2, so that the relative positions of the first lead D1 and the second lead D2 can be rapidly and firmly positioned.

As a preferred embodiment, the side wall of the holder main body 1 is provided with a side wall groove 11 for positioning the second wire D2, and the holding surface 21 of the clamping member 2 is provided with a holding surface groove 211 located opposite to the side wall groove 11. Thus, when the clamping member 2 clamps the second lead wire D2, the side wall groove 11 and the clamping surface groove 211 clamp the second lead wire D2 relatively, so that the clamping contact area of the second lead wire D2 is increased, and the clamping firmness is increased.

Preferably, the clamping component comprises an L-shaped clamping buckle 20, the L-shaped clamping buckle 20 comprises a clamping wall 201 and a clamping wall 202, and the clamping wall 201 is connected with the side wall of the fixing piece main body 1 through a folding edge 203. Thus, when the second lead D2 is clamped, the L-shaped clip 20 is turned 180 degrees along the folding edge 203, and the clamping wall 201 and the clamping wall 202 of the L-shaped clip 2 are respectively attached to two side walls of the fixing piece main body 1, so that the clamping wall 201 can clamp and position the second lead D2 quickly. At this time, the portion of the anchor main body 1 corresponding to the L-shaped clip is a strip portion having a square cross section, but it is preferable that the entire anchor main body 1 has a square strip shape as shown in fig. 2.

Preferably, the clamping wall 201 is provided with a hollow positioning hole 2011, and the side wall of the fixing part body 1 is provided with a positioning buckle 12 matched with the hollow positioning hole 2011. The hollow positioning hole 2011 and the positioning buckle 12 are matched to enable the clamping wall 202 to be locked and limited quickly.

Preferably, the ends of the catching walls 202 are bent outward. The outward bent part of the clamping wall 202 can be used for conveniently and quickly releasing the clamping of the clamping component 2 on the second lead D2 during maintenance, so that the quick maintenance is realized.

Preferably, the holding surface groove 211 is provided with a plurality of anti-slip ribs 212 along the length direction. The friction force in the length direction of the second wire D2 during clamping can be increased by the anti-slip ribs 212, further increasing the clamping firmness.

As another preferable structure of the gripping means, the gripping means is a band 5 as shown in fig. 10. The second conductor D2 can also be quickly secured to the first conductor D1 by the cable tie 5.

The invention also provides a fixing structure applying the fixing device, which comprises the fixing device, and further comprises a joint 3, a first lead D1 and a second lead D2, wherein a wiring hole 31 is formed at the joint 31, the end part of the second lead D2, namely the original lead, is fixed in the wiring hole 31, a wiring terminal 4 is arranged at the end part of the first lead D1, and the wiring terminal 4 is provided with a plugging part 41 which can be plugged in a gap between the second lead D2, namely the end part of the original lead and the wiring hole 31, as shown in fig. 7 and 8.

According to the fixing structure, the wiring terminal 4 and the inserting part 41 of the wiring terminal 4 are arranged, so that the inserting part 41 can be conveniently inserted into a gap between the original lead and the wiring hole 31 to adapt to a smaller clearance of interference fit between the second lead D2, namely the end part of the original lead and the wiring hole 31, and the fixing structure is convenient to assemble on the premise of ensuring reliable electric connection. The shape of the terminal 4 and the corresponding plug part 41 can be provided in various ways, as shown in fig. 8. The using state of the fixing structure of the invention is shown in fig. 9, and compared with fig. 1, it is obvious that the fixing structure of the invention does not need the functional connecting wire harness A of the original vehicle, and the cost of replacing the functional connecting wire harness A of the original vehicle is saved.

There are various ways of fixing the fixing body 1 and the first wire of the present invention, as shown in the following two embodiments.

Example 1:

as shown in fig. 2 to 4, the holder body 1 is provided with a through hole 13 through which the first wire D1 passes.

Example 2:

as another preferred embodiment, the holder body 1 is injection molded on the first wire D1, as shown in fig. 5.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A fixing device for doubling at a joint is characterized by comprising a fixing piece main body for connecting a first lead, wherein a clamping component for clamping a second lead is arranged on the side wall of the fixing piece main body.

2. The fixing device for doubling at a joint of claim 1, wherein a side wall of the fixing member main body is provided with a side wall groove for positioning the second wire, and the clamping surface of the clamping member is provided with a clamping surface groove located opposite to the side wall groove.

3. The fixing device for doubling at a joint according to claim 2, wherein the clamping member comprises an L-shaped clamp, the L-shaped clamp comprises a clamping wall and a clamping wall, and the clamping wall is connected with the side wall of the fixing member main body through a folded edge.

4. The fixing device for doubling at joints according to claim 3, wherein the clamping wall is provided with hollowed positioning holes, and the side wall of the fixing member main body is provided with positioning buckles matched with the hollowed positioning holes.

5. The fixing device for doubling at a joint according to claim 4, wherein an end portion of the catching wall is bent outward.

6. The fastening device for doubling at joints according to claim 5, wherein the grooves of the clamping surfaces are provided with a plurality of anti-slip ribs along the length direction.

7. The fastening device for doubling at joints of claim 1, wherein the clamping member is a cable tie.

8. A wire doubling structure using the fixing device as claimed in any one of claims 1 to 7, comprising the fixing device, and further comprising a joint, a first wire and a second wire, wherein a wire connecting hole is formed at the joint, an end of the second wire is fixed in the wire connecting hole, a wire connecting terminal is provided at the end of the first wire, and the wire connecting terminal is provided with a section of inserting portion which can be inserted into a gap between the end of the second wire and the wire connecting hole.

9. The doubling structure of a fixing device according to claim 8, wherein the fixing member main body is provided with a through hole through which the first wire passes.

10. The thread doubling structure of a fastening device according to claim 8, wherein the fastener body is injection molded on the first conductor.