Three-phase junction box for vehicle

Abstract

The utility model discloses a three-phase junction box for a vehicle, belongs to the technical field of junction boxes, and is used for providing a three-phase junction box for a vehicle, which is simpler in wiring operation and comprises a shell, a wiring groove is formed in the shell, the shell is provided with a rotary crimping assembly, an elastic pressing sheet and a constraint assembly in the wiring groove, and the constraint assembly is fixedly connected with the shell. The rotary crimping assembly is rotatably connected with the constraint assembly, the shell is made of an insulating material, when the rotary crimping assembly and the elastic pressing sheet can clamp a wire end of a wire, the constraint assembly is suitable for fixing a wire end of another wire, and the two wires can be electrically connected through the rotary crimping assembly, the elastic pressing sheet and the constraint assembly. According to the utility model, the rotary crimping structure is designed, so that tools are not required to be used when the selected functional assembly is connected into the vehicle machine system, and on one hand, the situation that the tools scratch the interior trim parts of the vehicle is avoided; and on the other hand, the wiring operation is facilitated, the wiring operation is simplified to a great extent, and the wiring efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of junction boxes, and in particular to a three-phase junction box for a vehicle. Background Art

[0002] At present, many functions of household cars need to be selected when purchasing. Except for a small number of software upgrades, most of the optional functions require additional hardware. The traditional hardware access method is the combination of chips and slots, but the cost of this access structure is high and its universality is not strong. Therefore, most access methods use lead connections, which requires a junction box.

[0003] However, existing vehicle junction boxes require the use of tools to connect the wire ends. Since the space reserved for expansion components in the car is not large, it is convenient to use tools directly. However, tools are prone to scratching components inside the car. In order to avoid this situation, it is sometimes necessary to remove the junction box for wiring, which undoubtedly increases the complexity of the operation. Summary of the invention

[0004] The purpose of the present application is to provide a three-phase junction box for a vehicle with simpler wiring operation.

[0005] In order to achieve the above objectives, the present application provides a three-phase vehicle junction box: comprising a shell, a wiring groove is provided on the shell, and a rotary crimping assembly, an elastic pressing plate and a constraint assembly are arranged in the wiring groove of the shell, the constraint assembly is fixedly connected to the shell, the rotary crimping assembly is rotatably connected to the constraint assembly, the shell is made of insulating material, when the rotary crimping assembly and the elastic pressing plate can clamp the wire end of the wire, the constraint assembly is suitable for fixing the wire end of another wire, the two wires can be electrically connected through the rotary crimping assembly, the elastic pressing plate and the constraint assembly, and since wiring can be performed without the use of tools, the wiring efficiency is improved.

[0006] Preferably, the constraint assembly includes a cantilever, which is fixedly connected to the housing via the connecting plate. The end of the cantilever extends into the wiring slot and is provided with a limiting axis. The limiting axis is suitable for being rotatably connected to the rotary crimping assembly, so that the rotary crimping assembly has the ability to adjust the angle.

[0007] As a preferred embodiment, the rotary crimping assembly includes a wire crimping cam, which is provided with a mating cavity for relative rotation of the cantilever. The wire crimping cam is also provided with an axial hole B connected to the mating cavity. The limiting shaft cooperates with the axial hole B to form a rotating pair for constraining the freedom of movement of the wire crimping cam.

[0008] As a preferred embodiment, the elastic pressing plate is fixedly connected to the bottom of the wiring groove, and a wire clamping groove B is provided on the side of the elastic pressing plate facing the wire pressing cam, and a wire clamping groove A is provided on the side farthest from the rotation axis of the wire pressing cam, and an axial hole A is provided on the opposite side wall of the wiring groove, and both ends of the limiting shaft pass through the axial hole B and then cooperate with the axial hole A to improve the strength of the rotating structure and ensure that the cantilever does not deform excessively when the wire pressing cam applies force.

[0009] As a preferred embodiment, the constraint assembly is also fixedly connected to a limiting frame, the limiting frame has a nut, the nut is fitted with a rear bolt, the constraint assembly has a wire pressing groove on the surface pointing to the bolt, and the connecting plate is fixedly connected to the outer shell by fasteners to ensure the stability of the constraint assembly.

[0010] As a preferred embodiment, the arc side surface of the wire crimping cam has an integrated insulating handle, and the insulating handle has a friction enhancement structure, so that the operator can directly contact the rotary crimping assembly to align and adjust the angle.

[0011] As a preferred embodiment, a wire groove communicating with the outside is provided in the shell, and the restraint assembly is located in the wire groove, so that another wire can be introduced into the junction box to achieve connection.

[0012] Preferably, the number of wiring slots and lead slots on the shell corresponds to each other, and there are at least three pairs. A wire support plate is provided on the outer side of the shell and below the wiring slots. The shell is also provided with a plurality of connector holes for connecting the entire junction box to the installation part inside the vehicle.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] (1) By designing a rotary crimping structure, no tools are required when connecting the optional functional components to the vehicle system. This not only avoids the possibility of tools scratching the vehicle interior, but also facilitates the wiring operation, greatly simplifies the wiring operation, and improves the wiring efficiency.

[0015] (2) By providing an elastic pressing piece that cooperates with the rotary crimping assembly, even if the wiring operation is very simple, the stability after wiring will be more reliable due to the effect of the squeezing friction force, and it is also convenient to disassemble when repairing or replacing the installed components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The first view of the overall structure of the three-phase junction box for the vehicle;

[0017] Figure 2 The second view of the overall structure of the three-phase junction box for the vehicle;

[0018] Figure 3 It is a three-dimensional cross-sectional view of the three-phase junction box for the vehicle;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the shell of the three-phase junction box for the vehicle;

[0020] Figure 5 A three-dimensional cross-sectional view of a housing of the vehicle three-phase junction box;

[0021] Figure 6 The figure is a matching diagram of the rotary crimping assembly, the elastic pressing piece and the restraining assembly of the three-phase junction box for the vehicle;

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the rotary crimping assembly of the three-phase junction box for the vehicle;

[0023] Figure 8 A first perspective view of the three-dimensional structure of the restraint assembly of the vehicle three-phase junction box;

[0024] Fig. 9 A second perspective view of the three-dimensional structure of the restraint assembly of the vehicle three-phase junction box;

[0025] Fig.10 For the three-phase junction box of this vehicle Fig. 9 A partial enlarged view of point A.

[0026] In the figure: 1. shell; 101. connector hole; 102. lead groove; 103. wiring groove; 104. shaft hole A; 2. wire supporting plate; 3. rotary crimping assembly; 301. wire crimping cam; 302. insulating handle; 303. wire clamping groove A; 304. matching cavity; 305. shaft hole B; 4. elastic pressing piece; 401. wire clamping groove B; 5. constraint assembly; 501. limit shaft; 502. cantilever; 503. connecting plate; 504. fastener; 505. wire crimping groove; 506. limit frame; 507. nut; 508. bolt. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application 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 cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] like Figure 1-10The three-phase vehicle junction box shown includes a housing 1, a wiring slot 103 is provided on the housing 1, and a position on the junction box is used to connect the end of the wire. The housing 1 is provided with a rotary crimping assembly 3, an elastic pressing piece 4 and a restraining assembly 5 in the wiring slot 103. The rotary crimping assembly 3 cooperates with the elastic pressing piece 4 to restrain one wire, and the restraining assembly 5 can restrain the end of another wire. The restraining assembly 5 is fixedly connected to the housing 1, and the restraining assembly 5 itself does not need to change its position or angle, so it is easier to ensure structural stability by adopting a fixed type. The rotary crimping assembly 3 is rotationally connected to the restraining assembly 5, and the rotary crimping assembly 3 needs to be rotated to complete the compression of the wire end. The cantilever 502 is fixedly connected to the housing 1 through a connecting plate 503, and the cantilever 502 has high stability. The end of the cantilever 502 extends into the wiring slot 103 and is provided with a limit shaft 501. The limit shaft 501 is suitable for being rotatably connected to the rotary crimping assembly 3 to limit the freedom of movement of the rotary crimping assembly 3. The rotary crimping assembly 3 includes a wire pressing cam 301. When rotating, the surface of the wire pressing cam 301 will apply different pressures to the elastic pressing sheet 4. The arc side of the wire pressing cam 301 has an integrated insulating handle 302, which is convenient for the operator to directly contact the rotary crimping assembly 3 to adjust its angle. The handle 302 is provided with a friction enhancement structure, such as a friction groove or a rubber friction strip, which can further enhance the friction force on the surface of the insulating handle 302. The wire pressing cam 301 is provided with a matching cavity 304 for the cantilever 502 to rotate relative to each other, so as to avoid motion interference when the wire pressing cam 301 rotates. The wire pressing cam 301 is also provided with an axial hole B305 connected with the matching cavity 304. The limit shaft 501 and the axial hole B305 cooperate to form a rotating pair. The elastic pressing piece 4 is fixedly connected to the bottom of the wiring groove 103, and can fit well with the wire pressing cam 301. The elastic pressing piece 4 located at the bottom of the wiring groove 103 has good concealment, and the elastic pressing piece 4 faces the wire pressing cam 301. A wire holding groove B401 is provided on the side of 01, and a wire holding groove A303 is provided on the side farthest from the rotation axis of the wire pressing cam 301. When the wire pressing cam 301 contacts the elastic pressing plate 4, the wire holding groove A303 is aligned with the wire holding groove B401 to form a quasi-circular channel, which can well clamp the end of the wire without causing greater compression damage to the wire. The wiring slot 103 is provided with an axial hole A104 on the opposite side wall, and both ends of the limiting shaft 501 pass through the axial hole B305 and then cooperate with the axial hole A104, so as to further improve the strength of the rotating structure, thereby ensuring that the cantilever 502 does not deform when the wire pressing cam 301 applies pressure to the elastic pressing plate 4.

[0032] The constraint component 5 is also fixedly connected to a limit frame 506 for constraining the end of another wire. The limit frame 506 has a nut 507, and the nut 507 is fitted with a rear bolt 508. The constraint component 5 is provided with a wire pressing groove 505 on the surface pointed by the bolt 508. When the end of the other wire is in the limit frame 506, the bolt 508 is rotated to press the end of the wire into the wire pressing groove 505. The connecting plate 503 is fixedly connected to the housing 1 through a fastener 504. Since the entire constraint component 5 is made of alloy material and cannot be directly connected to the plastic housing 1, this detachable connection method is adopted. 1 is provided with a lead groove 102 connected to the outside, and another wire is introduced into the junction box from it. The restraint component 5 is in the lead groove 102, so that the wiring end of the other wire can be hidden in the junction box. When the rotary crimping component 3 and the elastic pressing piece 4 can clamp the wire end of the wire, the restraint component 5 is suitable for fixing the wire end of the other wire. Usually, except that the rotary crimping component 3 is supported by an elastic alloy material, the elastic pressing piece 4 and the restraint component 5 are both made of copper alloy material, so the two wires can be electrically connected through the rotary crimping component 3, the elastic pressing piece 4 and the restraint component 5, and the junction box has the functions of rapid power distribution and line end protection.

[0033] The shell 1 is made of insulating material, usually plastic, and a rubber sealing ring is provided at the gap between the wires. The number of wiring slots 103 and lead slots 102 on the shell 1 corresponds to each other, and there are at least three pairs, usually an integer multiple of three, so that at least three wires can pass in and out. A wire support plate 2 is provided on the outer side of the shell 1 and below the wiring slot 103, which is used to support the guide for passing in and provide a certain guiding effect. The wire support plate 2 is generally made of silicone or rubber, and has better contact characteristics than the shell 1 made of plastic, reducing the mutual wear between the guide rubber and the shell 1. A number of connector holes 101 are also provided on the shell 1 for the connector to pass through to connect the entire junction box to the installation position in the vehicle body.

[0034] The method of using the three-phase junction box for a vehicle is as follows: when using it, first connect the wires that have been installed in the vehicle to the constraint component 5, then place the wire ends of the equipment wires that need to be configured later between the wire pressing cam 301 and the elastic pressing piece 4, and then press the insulating handle 302 to rotate the wire pressing cam 301 to press the elastic pressing piece 4, so that the wire ends between the wire pressing cam 301 and the elastic pressing piece 4 will be pressed and fixed. This wiring operation is very convenient. When the vehicle is performing function selection, almost no tools are required to complete the connection of the functional components, which improves the efficiency of function expansion.

[0035] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A three-phase junction box for a vehicle, characterized in that: The invention comprises a shell, which is provided with a wiring groove, wherein a rotary crimping assembly, an elastic pressing plate and a restraining assembly are arranged in the wiring groove, wherein the restraining assembly is fixedly connected to the shell, and the rotary crimping assembly is rotatably connected to the restraining assembly, and the shell is made of insulating material, and when the rotary crimping assembly and the elastic pressing plate can clamp the wire end of the wire, the restraining assembly is suitable for fixing the wire end of another wire, and the two wires can be electrically connected through the rotary crimping assembly, the elastic pressing plate and the restraining assembly.

2. The three-phase junction box for a vehicle as claimed in claim 1, characterized in that: The restraining assembly comprises a cantilever, which is fixedly connected to the housing via a connecting plate. The end of the cantilever extends into the wiring slot and is provided with a limiting axis, which is suitable for being rotatably connected to the rotary crimping assembly.

3. The three-phase junction box for a vehicle as claimed in claim 2, characterized in that: The rotary crimping assembly includes a crimping cam, which is provided with a matching cavity for relative rotation of the cantilever. The crimping cam is also provided with an axial hole B connected to the matching cavity, and the limiting shaft cooperates with the axial hole B to form a rotating pair.

4. The three-phase junction box for a vehicle as claimed in claim 3, characterized in that: The elastic pressing plate is fixedly connected to the bottom of the wiring groove, and a wire clamping groove B is provided on the side of the elastic pressing plate facing the wire pressing cam. A wire clamping groove A is provided on the side farthest from the rotation axis of the wire pressing cam, and an axial hole A is provided on the opposite side wall of the wiring groove. The two ends of the limiting shaft pass through the axial hole B and then cooperate with the axial hole A.

5. The three-phase junction box for a vehicle as claimed in claim 2, characterized in that: The constraint component is also fixedly connected to a limiting frame, the limiting frame is provided with a nut, the nut is fitted with a rear bolt, the constraint component is provided with a wire pressing groove on the surface pointed by the bolt, and the connecting plate is fixedly connected to the shell by a fastener.

6. The three-phase junction box for a vehicle as claimed in claim 3, characterized in that: The arc side surface of the wire pressing cam is provided with an integrated insulating handle, and the insulating handle is provided with a friction enhancing structure.

7. The three-phase junction box for a vehicle as claimed in claim 5, characterized in that: A wire guide groove communicating with the outside is provided in the shell, and the restraint component is located in the wire guide groove.

8. The three-phase junction box for a vehicle as claimed in claim 7, characterized in that: The number of the wiring slots and lead slots on the shell corresponds to each other, and there are at least three pairs. A wire supporting plate is arranged on the outer side of the shell and below the wiring slots. The shell is also provided with a plurality of connector holes.

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