Novel cable adapter

Abstract

The utility model discloses a novel cable adapter. The novel cable adapter comprises a cable assembly, two end covers, two cable sealing bodies, a hollow outer shell and an inner mounting shell, the exposed end plates of the two conductive wires of the cable assembly are welded into a whole; two end hole jackets of the inner mounting shell are connected with two conductive wires, an inner cavity of the inner mounting shell seals the end plate, the outer wall of the inner mounting shell is clamped with the inner wall of the shell, and a vertical first buckle of the inner mounting shell is clamped with a vertical groove of the end plate; the two end covers are clamped at two ends of the shell, and a conductor wire is sleeved in a gap of threading holes of the end covers; and the wire fixing holes of the wire sealing bodies are in interference shaft sleeve connection with the conductive wires, and the positioning column shaft sleeves on the outer side surfaces of the wire sealing bodies are in shaft sleeve connection with the positioning holes of the end covers. The cable has the advantages of being simple in structure, high in protection performance, high in weather resistance and capable of keeping good conductive performance for a long time.

Description

Technical Field

[0001] The utility model relates to the field of electrical switching, in particular to a novel cable adapter. Background Art

[0002] The existing fast charging technology uses high-power DC charging. Currently, the commonly used conductive wires are large-diameter copper wire bundles or solid aluminum guide rods. Large-diameter wire bundles have the defects of high cost and heavy weight. Solid guide rods are light and low in cost, but the guide rods are rigid parts and cannot absorb their own processing errors and assembly errors. In order to take into account easy assembly, low cost and light weight, the wire bundle and the solid guide rod are welded into a cable assembly, and then the welding part is wrapped with a heat shrink tube. The cable assembly uses the flexibility of the wire bundle itself to absorb the assembly error of the solid guide rod. Its defects are: first, the protection performance is poor and the weather resistance is poor, which greatly limits the application on the whole vehicle; second, the welding part is easily damaged, affecting the conductive performance. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a new cable adapter.

[0004] According to one aspect of the utility model, the novel cable adapter comprises: a cable assembly, two end caps, two sealing bodies, an outer shell with a hollow interior, and an inner mounting shell;

[0005] The exposed end plates of the two conductive wires of the cable assembly are welded together, and one of the end plates is symmetrically provided with vertical grooves on the front and rear sides;

[0006] The inner mounting shell is formed by clamping the first mounting plate and the second mounting plate, the two end hole jackets of the inner mounting shell are connected with two conductive wires, the inner cavity seals the end plate and the outer wall is clamped with the inner wall of the outer shell, and the vertical first buckle of the inner mounting shell is clamped with the vertical groove;

[0007] Two end covers are clamped at both ends of the housing, and the gaps between the threading holes of the end covers are used to hold the conductive wires;

[0008] Two interference sleeves of the sealing wire bodies are connected to two ends of the shaft hole of the shell, and the interference sleeves of the wire fixing holes of the sealing wire bodies are conductive.

[0009] In some embodiments, the bayonet end of the outer wall of the inner mounting shell is engaged with the third buckle of the inner wall of the outer shell.

[0010] In some embodiments, the snap-fitting ends of the four side panels of the end cover and the second snap-fitting ends of the four outer side walls of the housing are snap-fitted.

[0011] In some embodiments, two adapter ports of the inner mounting shell are provided with wire clamping rings with convex rib structures.

[0012] In some embodiments, the threading hole passes through the front flange at the front end and the thickened block at the rear end to form a long axis hole.

[0013] In some embodiments, the outer side surface of the sealing body is in contact with the thickening block, and the inner side surface of the sealing body is in contact with each limiting column of the inner wall of the outer shell.

[0014] In some embodiments, the outer peripheral surface of the wire sealing body is provided with a plurality of outer sealing grooves, and the inner hole wall of the wire fixing hole is provided with a plurality of inner sealing grooves.

[0015] In some embodiments, the end cover is provided with a plurality of axial positioning holes; the outer side surface of the sealing body is provided with a plurality of positioning columns, and the positioning column sleeves are fixedly connected to the positioning holes.

[0016] In some embodiments, the positioning hole is a stepped through hole or a countersunk hole, and the mushroom end of the outer end of the positioning column is fixed to the outer end large diameter section of the positioning hole;

[0017] Or a plurality of positioning holes are arranged in a circle array with the threading hole as the center, and a plurality of positioning columns are arranged in a circle array with the fixing hole as the center.

[0018] In some embodiments, the two conductive wires are respectively an unshielded copper wire and an aluminum rod, and the vertical grooves are located on the front and rear sides of the flat end plate of the aluminum rod;

[0019] Or the sealing body is made of rubber material or polytetrafluoroethylene material, and the outer shell, inner mounting shell and end cover are all made of injection molding material.

[0020] The beneficial effects of the novel cable adapter are as follows: first, the adapter can well fix the welding area of ​​the cable assembly, and at the same time, the welding area of ​​the cable assembly is sealed at a high level, and has high protective performance, high weather resistance, and good protective effect. It can be used in more severe and complex environments, effectively improving its application range. At the same time, the welding part is sealed and effectively fixed, does not contact the external environment, and will not move left and right, thereby improving the life of the welding part and maintaining good conductive performance for a long time; second, the structure is simple, easy to assemble, and low in cost; third, the inner mounting shell is provided with a vertical groove for the first buckle to clamp the end plate, so as to prevent the adapter and the cable assembly from relative movement and affecting the sealing performance; fourth, the sealing body and the end cover are matched with positioning holes and positioning columns, which can effectively fix the position of the sealing body and prevent the sealing body from being inside the shell or skewed (extreme deflection) and causing poor sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a novel cable adapter according to one embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic cross-sectional view of a novel cable adapter is shown;

[0023] Figure 3 for Figure 1 A three-dimensional schematic diagram of the cable assembly shown;

[0024] Figure 4 for Figure 1 A three-dimensional schematic diagram of the inner mounting shell shown;

[0025] Figure 5 for Figure 1 a three-dimensional schematic diagram of the housing shown;

[0026] Figure 6 for Figure 1 A three-dimensional schematic diagram of the end cap shown;

[0027] Figure 7 for Figure 1 A three-dimensional schematic diagram of the sealing body shown;

[0028] Cable assembly 01, conductive wire 010, end plate 011, vertical groove 012;

[0029] Inner mounting shell 02, first buckle 021, wire clamping ring 022, protruding teeth 023, bayonet end 024, first mounting plate 3, second mounting plate 4,

[0030] End cover 1, threading hole 100, positioning hole 101, side panel 11, clamping hole end 110, front flange 12, thickening block 13;

[0031] Sealing body 2, fixing hole 200, positioning column 201, mushroom end 202, outer sealing groove 203, inner sealing groove 204;

[0032] The housing 5 , the second buckle 51 , the reinforcing rib 52 , the limiting column 53 , and the third buckle 54 . DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0034] Figures 1 to 7 A new cable adapter according to an embodiment of the present utility model is schematically shown. As shown in the figure, the new cable adapter comprises: a cable assembly 01, two end caps 1, two sealing bodies 2, an inner hollow outer shell 5, and an inner mounting shell 02;

[0035] The exposed end plates 011 of the two conductive wires 010 of the cable assembly 01 are welded together, and one of the end plates 011 is symmetrically provided with vertical grooves 012 on the front and rear sides;

[0036] The inner installation shell 02 is formed by the first installation plate 3 and the second installation plate 4 being clamped together. The two end holes of the inner installation shell 02 are jacketed to connect two conductive wires 010. The inner cavity of the inner installation shell 02 has a sealed end plate 011 and the outer wall is clamped to the inner wall of the outer shell 5. The vertical first buckle 021 of the inner installation shell 02 is clamped to the vertical groove 012.

[0037] Two end covers 1 are clamped at both ends of the housing 5, and the threading holes 100 of the end covers 1 are spaced to accommodate the conductive wires 010 and are provided with a plurality of axial positioning holes 101;

[0038] The two sealing bodies 2 are connected to the two ends of the shaft hole of the shell 5 by interference sleeves. The wire fixing hole 200 of the sealing body 2 is sleeved with the conductive wire 010 and a plurality of positioning columns 201 are arranged on the outer side thereof. Each positioning column 201 is sleeved and fixedly connected to the positioning hole 101.

[0039] The novel cable adapter adopts a mounting shell 02 which is snapped into the outer shell 5 to clamp the cable assembly 01. The two ends of the outer shell 5 are sealed by end caps 1 and sealing bodies 2. The end caps 1 fix the sealing bodies 2 to ensure a good sealing function. The sealing bodies cooperate with the outer shell 5 and the conductive wires 010 to seal the welding parts well. The beneficial effects are as follows: first, the adapter can well fix the welding area of ​​the cable assembly 01 and at the same time perform a high-level sealing on the welding area of ​​the cable assembly 01. It has high protective performance, high weather resistance and good protective effect. It can be used in more severe and complex environments, which effectively improves its application range. At the same time, the welding parts are sealed and effectively fixed, do not contact the external environment, and will not move left and right, which improves the service life of the welding parts and maintains good conductive performance for a long time. Second, the structure is simple, easy to assemble and low in cost. Third, the inner mounting shell 02 is provided with a first buckle 021 which snaps into the vertical groove 012 of the end plate 011 to prevent the adapter and the cable assembly 01 from relative movement and affecting the sealing performance.

[0040] Further, the outer wall of the inner installation shell 02 is provided with a bayonet end 024, and the inner wall of the outer shell 5 is provided with a third buckle 54, and the bayonet end 024 is clamped with the third buckle 54. Preferably, the two adapter ports of the inner installation shell 02 are provided with a wire clamping ring 022 with a rib structure, and the inner wall of the wire clamping ring 022 is provided with a convex tooth 023. The beneficial effect is that the wire clamping ring 022 can improve the clamping function of the conductive wire 010, prevent the gap caused by the contraction of the cable outer sheath when the environment changes, and can ensure the protection of the aging welding area for a long time.

[0041] Preferably, the end faces of the four side panels 11 of the end cover 1 are all provided with a snap hole end 110 in the middle, and the two ends of the four outer side walls of the shell 5 are provided with a second snap buckle 51, and the four snap hole ends 110 of each end cover 1 are snapped with the four second snap buckles 51 at one end of the shell 5. Preferably, the snap hole end 110 is a rectangular ring buckle provided at the middle notch of each side panel 11, and a reinforcing rib 52 is provided at the front end of the second snap buckle 51. The beneficial effect is that the end cover 1 and the shell 5 are all provided with snap buckle connections on all four sides, so that the position accuracy of the end cover 1 is high.

[0042] Furthermore, the front end of the threading hole 100 of the end cover 1 forms a front flange 12 and the rear end forms a thickening block 13, the threading hole 100 penetrates the front flange 12 and the thickening block 13 to form a long axis hole, and the end wall of the housing 5 is inserted into the limit groove between the thickening block 13 and the side panel 11. The beneficial effect is that the long axis hole can make the fixing area of ​​the conductive wire 010 longer and larger, and can have a guiding effect on the conductive wire 010 (especially the aluminum rod), preventing the extreme deflection caused by excessive stress, thereby preventing the sealing failure phenomenon.

[0043] Preferably, the thickening block 13 fits with the outer side surface of the sealing body 2 , and the inner side surface of the sealing body 2 fits with each limiting column 53 of the inner wall of the shell 5 , so as to accurately limit the axial position of the sealing body 2 .

[0044] Preferably, the outer peripheral surface of the wire sealing body 2 is provided with a plurality of outer sealing grooves 203, and the inner hole wall of the wire fixing hole 200 is provided with a plurality of inner sealing grooves 204. The beneficial effect is: double efficient sealing inside and outside to achieve better protection effect.

[0045] Further, the end cover 1 is provided with a plurality of axial positioning holes 101; the outer side surface of the sealing body 2 is provided with a plurality of positioning posts 201, and the positioning posts 201 are sleeved and fixedly connected to the positioning holes 101. The beneficial effect is that the sealing body 2 and the end cover 1 are matched with the positioning holes 101 and the positioning posts 201, which can effectively fix the position of the sealing body 2, and prevent the sealing body 2 from being inside the housing 5 or being skewed (extremely deflected) and causing poor sealing. Preferably, the positioning hole 101 is a stepped through hole or a countersunk hole, and the outer end of the positioning post 201 is provided with a mushroom end 202, the inner side of the positioning post 201 sleeves the inner end small diameter section of the positioning hole 101, and the mushroom end 202 is fixed to the outer end large diameter section of the positioning hole 101, and the rear end face of the mushroom end 202 is positioned to fit the middle step surface of the positioning hole 101. The beneficial effect is that this setting has a better positioning and connection effect, ensures that the position of the sealing body 2 is more accurate, and achieves better sealing performance.

[0046] Preferably, a threading hole 100 is provided at the center of the vertical cover plate of the end cover 1, and a plurality of positioning holes 101 are arranged in a circumferential array around the threading hole 100, and a wire fixing hole 200 is provided at the center of the sealing body 2, and a plurality of positioning columns 201 are arranged in a circumferential array around the wire fixing hole 100. The beneficial effect is that the circumferential array can achieve uniformity of the connection load, prevent skew gap caused by eccentric load, and thus have good sealing performance.

[0047] Preferably, the two conductive wires 010 are respectively an unshielded copper wire and an aluminum rod, the end plate 011 of the unshielded copper wire is welded to the flat end plate 011 of the aluminum rod with a large width, and the vertical groove 012 is located at the front and rear sides of the flat end plate 011 of the aluminum rod; preferably, the two conductive wires 010 are preferably 95 square copper wires and 150 square aluminum rods, and the two end plates 011 are ultrasonically welded. The beneficial effect is that this setting can be used in more application scenarios.

[0048] Preferably, the vertical groove 012 is a rectangular groove, and the first buckle 021 is a rectangular column. The beneficial effects are: simple structure, simple assembly, good connection effect, and low cost.

[0049] Preferably, the outer shell 5 and the inner mounting shell 02 are rectangular shells, and the sealing body 2 is a rectangular block.

[0050] Preferably, the sealing body 2 is made of rubber or polytetrafluoroethylene, and the outer shell 5, the inner mounting shell 02, and the end cover 1 are all made of injection molding materials.

[0051] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A new type of cable adapter, characterized in that: It comprises: a cable assembly (01), two end covers (1), two sealing bodies (2), an outer shell (5) with a hollow interior, and an inner mounting shell (02); The exposed end plates (011) of the two conductive wires (010) of the cable assembly (01) are welded together, and one of the end plates (011) is symmetrically provided with vertical grooves (012) on the front and rear sides; The inner mounting shell (02) is formed by snapping together a first mounting plate (3) and a second mounting plate (4); the two end holes of the inner mounting shell (02) are jacketed to connect the two conductive wires (010); the inner cavity seals the end plate (011) and the outer wall is snapped together with the inner wall of the outer shell (5); the vertical first buckle (021) of the inner mounting shell (02) is snapped together with the vertical groove (012); The two end covers (1) are clamped at two ends of the housing (5), and the threading holes (100) of the end covers (1) are spaced to sleeve the conductive wires (010); The two interference sleeves of the wire sealing bodies (2) are connected to the two ends of the shaft hole of the housing (5), and the wire fixing hole (200) of the wire sealing body (2) is an interference sleeve for the conductive wire (010).

2. The new cable adapter according to claim 1 is characterized in that: The bayonet end (024) of the outer wall of the inner mounting shell (02) is engaged with the third buckle (54) of the inner wall of the outer shell (5).

3. The new cable adapter according to claim 2 is characterized in that: The snap-fitting ends (110) of the four side panels (11) of the end cover (1) and the second snap-fittings (51) of the four outer side walls of the housing (5) are snap-fitted.

4. The new cable adapter according to claim 2 is characterized in that: The two adapter ports of the inner mounting shell (02) are provided with wire clamping rings (022) with convex rib structures.

5. The new cable adapter according to claim 2 is characterized in that: The threading hole (100) penetrates the front flange (12) at the front end and the thickened block (13) at the rear end to form a long axis hole.

6. The new cable adapter according to claim 1 or 2, characterized in that: The outer side surface of the sealing body (2) fits with the thickening block (13), and the inner side surface thereof fits with each limiting column (53) on the inner wall of the outer shell (5).

7. The new cable adapter according to claim 6, characterized in that: The outer peripheral surface of the wire sealing body (2) is provided with a plurality of external sealing grooves (203), and the inner hole wall of the wire fixing hole (200) is provided with a plurality of internal sealing grooves (204).

8. The new cable adapter according to any one of claims 1 to 7, characterized in that: The end cover (1) is provided with a plurality of axial positioning holes (101); the outer side surface of the sealing body (2) is provided with a plurality of positioning columns (201), and the positioning columns (201) are sleeve-fixedly connected to the positioning holes (101).

9. The new cable adapter according to claim 8, characterized in that: The positioning hole (101) is a stepped through hole or a countersunk hole, and the mushroom end (202) at the outer end of the positioning column (201) is fixed to the outer end large diameter section of the positioning hole (101); Or a plurality of the positioning holes (101) are arranged in a circular array with the threading hole (100) as the center, and a plurality of the positioning posts (201) are arranged in a circular array with the fixing hole (200) as the center.

10. The new cable adapter according to any one of claims 1 to 9, characterized in that: The two conductive wires (010) are respectively an unshielded copper wire and an aluminum rod, and the vertical groove (012) is located at the front and rear sides of the flat end plate (011) of the aluminum rod; Or the sealing body (2) is made of rubber material or polytetrafluoroethylene material, and the outer shell (5), the inner mounting shell (02) and the end cover (1) are all made of injection molding material.

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