Via hole connector

Abstract

The utility model discloses a via hole connector, which is used for installing a cable on electrical equipment, and comprises a rear cover sleeved on the cable; the connecting part is arranged on the cable in a sleeving manner and comprises an inner connecting body and an outer connecting body arranged on the inner connecting body in a sleeving manner, the outer connecting body comprises a first ring body, a second ring body and a third ring body which are coaxially arranged, a plurality of open grooves are formed in the first ring body, folded edges are arranged in the open grooves, the folded edges are arranged in an inclined manner, and the first ring body and the second ring body are coaxially arranged. A plurality of open holes are formed in the second ring body, a plurality of openings are formed in the third ring body, and the second ring body is gradually shrunk from the first ring body to one side of the second ring body; and the sealing ring is arranged between the rear cover and the connecting ring and is sleeved on the cable. According to the utility model, the light-weight design is adopted, the cost and the weight can be reduced, the cable can be prevented from falling off when being inserted, and the connection stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a via connector. Background Art

[0002] The current through-hole connector can be used for connecting high-voltage lines such as new energy vehicle motor connections, high-voltage distribution box connections, and energy storage power station connection lines. For example, the through-hole connector disclosed in patent number CN209029613U includes a housing (2), a fixed base (4), a shielding sleeve (5), a shielding spring (6), and a sealing component (8). A gap is left between the inner wall of the housing (2) and the cable (9). The fixed base (4) is arranged at one end of the gap, and the sealing component (8) is arranged at the other end of the gap. The shielding sleeve (5) is crimped onto the cable (9) and placed in the gap. The shielding spring (6) is used to connect the shielding sleeve (5) and the housing (2). The connection of this type of connector is not stable enough. During use, when the cable is inserted and installed, the shielding ring is easily affected by external force and falls off, affecting the connection effect. Utility Model Content

[0003] The utility model aims to avoid the shortcomings of the prior art and provides a via connector with stable connection.

[0004] The utility model solves the technical problem by adopting the following technical solution: a through-hole connector for installing a cable on an electrical device, the through-hole connector comprising:

[0005] A back cover mounted on the cable;

[0006] A connecting part sleeved on the cable, the connecting part includes an inner connecting body and an outer connecting body sleeved on the inner connecting body, the outer connecting body includes a first ring body, a second ring body and a third ring body arranged coaxially, the first ring body is provided with a plurality of slots, the slots are provided with folded edges, the folded edges are arranged obliquely, the second ring body is provided with a plurality of openings, the third ring body is provided with a plurality of openings, and the second ring body is gradually reduced from the first ring body to the second ring body side;

[0007] A sealing ring is arranged between the rear cover and the connecting ring, and the sealing ring is sleeved on the cable.

[0008] In several embodiments,

[0009] In several embodiments, the folding edge includes a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm which are arranged in sequence, the first connecting arm is arranged horizontally and connected to the first ring body, the second connecting arm is arranged obliquely toward the outer side of the first ring body, the third connecting arm is arranged in a bent manner, the fourth connecting arm is arranged obliquely toward the inner side of the first ring body and is higher than the first ring body, and the fourth connecting arm extends to the outside of the first ring body.

[0010] In several embodiments, a locking ring is sleeved on the third ring body.

[0011] In several embodiments, a gasket is provided between the sealing ring and the first ring body.

[0012] In several embodiments, the outer diameter of the gasket is greater than the outer diameter of the first ring body, and the gasket abuts against the end of the folded edge.

[0013] In several embodiments, the electrical device is provided with a connector, the connector is provided with a card edge, the back cover is provided with a card slot, and the card edge is plugged into and matched with the card slot.

[0014] In several embodiments, a limiting step is provided in the joint and the joint is thereby separated into a first tube body and a second tube body, a plurality of limiting protrusions are provided on the first ring body, the limiting protrusions cannot pass through the limiting step, the third connecting arm abuts against the inner wall of the first tube body, and the first ring body is in close contact with the second tube body.

[0015] In several embodiments, the back cover includes a first cover body and a second cover body, the first cover body is provided with a plurality of ribs, and the card slot is provided on the second cover body.

[0016] In several embodiments, the second ring body and the third ring body are detachably connected, the second ring body includes a plurality of connecting edges and connecting segments, the connecting edges are arranged between the first ring body and the connecting segments, the plurality of connecting segments are distributed in a ring shape and have gaps, the connecting segments are provided with convex edges, the third ring body is provided with a plurality of connecting grooves, the connecting segments are arranged in the third ring body and the convex edges are plugged into the connecting grooves.

[0017] In several embodiments, the cable is fixed to the copper busbar by welding.

[0018] The beneficial effects of the utility model are:

[0019] The utility model adopts a lightweight design, which can reduce costs and reduce weight.

[0020] The utility model adopts the structural design of the outer connecting body and its folded edge, the contact design with the electrical equipment is more firmly connected, the radial active force type is increased, the contact force is better, and the contact effect is better. It can meet the waterproof and dustproof IP67 level when combined with the sealing ring.

[0021] The utility model adopts the structural design of the first connecting arm, the second connecting arm, the third connecting arm and the fourth connecting arm, so that the contact position of the third connecting arm and the joint is more tightly connected under the action of their radial component force. At the same time, through the structure of the convex edge and the connecting groove and the structure of the limiting protrusion and the limiting step, the cable can be prevented from falling off when inserted, thereby ensuring the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0023] Figure 1 The overall structure of the via connector in Embodiment 1 is schematically shown;

[0024] Figure 2 Schematically shows Figure 1 Explosion structure;

[0025] Figure 3 Schematically shows Figure 2 Explosion structure at the middle joint;

[0026] Figure 4 Schematically shows Figure 3 The enlarged structure of the Sino-foreign connection;

[0027] Figure 5 Schematically shows Figure 3 The structure of the connecting portion combined with the joint;

[0028] Figure 6 The separation structure of the outer connecting body in Example 2 is schematically shown. DETAILED DESCRIPTION

[0029] Below, embodiments of the present invention are described in detail with reference to the accompanying drawings. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1-Figure 5 As shown, the through-hole connector in this embodiment is used to install the cable 100 on the electrical equipment and lock it at the joint 200 position. It is mainly composed of a back cover 10 sleeved on the cable 100, a connecting part sleeved on the cable 100, and a sealing ring 40 arranged between the back cover 10 and the connecting ring. The sealing ring 40 is sleeved on the cable 100. The cable 100 is conventionally composed of a core wire, an inner sheath, a shielding net and an outer sheath from the inside to the outside.

[0033] Specifically, the connecting part includes an inner connecting body 20 and an outer connecting body 30 sleeved on the inner connecting body 20, the outer connecting body 30 includes a first ring body 31, a second ring body 32 and a third ring body 33 which are coaxially arranged and integrally formed, the first ring body 31 is provided with a plurality of grooves 311, the grooves 311 are provided with folded edges 34, the folded edges 34 are inclined, the second ring body 32 is provided with a plurality of openings 321, the third ring body 33 is provided with a plurality of openings 331, and the second ring body 32 gradually shrinks from the first ring body 31 to the second ring body 32 side.

[0034] Among them, the folding edge 34 includes a first connecting arm 341, a second connecting arm 342, a third connecting arm 343 and a fourth connecting arm 344 which are arranged in sequence. The first connecting arm 341 is horizontally arranged and connected to the first ring body 31, the second connecting arm 342 is inclined toward the outer side of the first ring body 31, the third connecting arm 343 is bent, the fourth connecting arm 344 is inclined toward the inner side of the first ring body 31 and is higher than the first ring body 31, and the fourth connecting arm 344 extends to the outside of the first ring body 31.

[0035] Among them, a locking ring 35 is sleeved on the third ring body 33 to lock the third ring body 33 on the cable, and a gasket 36 is arranged between the sealing ring 40 and the first ring body 31. The outer diameter of the gasket 36 is larger than the outer diameter of the first ring body 31. The gasket 36 abuts against the end of the folded edge 34. The gasket 36 applies force to the folded edge 34 to cause it to deform and clamp in the connector 200.

[0036] Among them, a card edge 210 is provided on the connector 200, and a card slot 101 is provided on the back cover 10. The card edge 210 is plugged into the card slot 101. The back cover 10 includes a first cover body 11 and a second cover body 12. The first cover body 11 is provided with multiple ribs 111, and the card slot 101 is provided on the second cover body 12.

[0037] Among them, a limiting step 220 is set in the joint 200 and is thereby divided into a first tube body 201 and a second tube body 202. A plurality of limiting protrusions 301 are set on the first ring body 31, and the limiting protrusions 301 cannot pass through the limiting step 220. The third connecting arm 343 abuts against the inner wall of the first tube body 201, and the first ring body 31 is in close contact with the second tube body 202.

[0038] Furthermore, the cable 100 and the copper busbar 300 are fixed by welding, which provides a smaller contact resistance and a smaller temperature rise compared to a crimped terminal.

[0039] When installing the utility model, after the outer sheath of the cable is peeled away, the inner connecting body 20 is inserted, and the shielding net is pressed between the inner connecting body 20 and the outer connecting body 30, so that the connecting part is crimped on the inner sheath as a whole, and when the cable is inserted inward, the limiting protrusion 301 cooperates with the limiting step 220 to form a reaction force, and the force between the connecting part and the inner sheath and the force of the outer sheath on the inner connecting body 20 are opposite and equal to the reaction force, thereby offsetting each other.

[0040] Example 2

[0041] In this embodiment, the second ring body 32 and the third ring body 33 are detachably connected, and this structure is convenient for transportation and production. The second ring body 32 includes a plurality of connecting edges 322 and connecting sections 323. The connecting edges 322 are arranged between the first ring body 31 and the connecting sections 323. The plurality of connecting sections 323 are distributed in a ring shape with gaps. The connecting sections 323 are provided with convex edges 3231. The third ring body 33 is provided with a plurality of connecting grooves 332. The connecting sections 323 are arranged in the third ring body 33, and the convex edges 3231 and the connecting grooves 332 are plugged into each other.

[0042] When the cable is inserted inward, it can also be subjected to the force between the convex edge 3231 and the connecting groove 332, providing a further limiting and anti-falling effect.

[0043] All the methods described herein can be performed in any suitable order. Any and all examples used, or exemplary language provided herein (such as "for example") are merely to better illustrate the present invention, and are not intended to limit the scope of the present invention, unless the claims are included. The language in the detailed description should not be understood as indicating any essential factors for practicing the present invention that are not claimed.

[0044] The present invention describes preferred embodiments, including the best way to carry out the present invention known to the inventor. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors anticipate that skilled artisans may use such variations as appropriate, and the inventors point out that the present invention may be implemented in other ways than those specifically described herein. Therefore, the present invention includes all improvements included in the spirit and scope of the present invention as defined by the claims. Moreover, unless otherwise stated or clearly contradictory in content, the present invention includes any of the above factors and all possible variations thereof.

Claims

1. A through-hole connector for mounting a cable (100) on an electrical device, characterized in that: The via connector comprises: A rear cover (10) sleeved on the cable (100); A connecting portion sleeved on a cable (100), the connecting portion comprising an inner connecting body (20) and an outer connecting body (30) sleeved on the inner connecting body (20), the outer connecting body (30) comprising a first ring body (31), a second ring body (32) and a third ring body (33) coaxially arranged, the first ring body (31) being provided with a plurality of slots (311), a folded edge (34) being arranged in an inclined manner, the second ring body (32) being provided with a plurality of openings (321), the third ring body (33) being provided with a plurality of openings (331), the second ring body (32) gradually shrinking from the first ring body (31) to the second ring body (32); A sealing ring (40) is arranged between the rear cover (10) and the connecting ring, and the sealing ring (40) is sleeved on the cable (100).

2. A via connector according to claim 1, characterized in that: The folding edge (34) includes a first connecting arm (341), a second connecting arm (342), a third connecting arm (343) and a fourth connecting arm (344) which are arranged in sequence, wherein the first connecting arm (341) is arranged horizontally and connected to the first ring body (31), the second connecting arm (342) is arranged obliquely toward the outer side of the first ring body (31), the third connecting arm (343) is arranged in a bent manner, the fourth connecting arm (344) is arranged obliquely toward the inner side of the first ring body (31) and is higher than the first ring body (31), and the fourth connecting arm (344) extends to the outside of the first ring body (31).

3. A via connector according to claim 2, characterized in that: The third ring body (33) is sleeved with a locking ring (35).

4. A via connector according to claim 3, characterized in that: A gasket (36) is provided between the sealing ring (40) and the first ring body (31).

5. A via connector according to claim 4, characterized in that: The outer diameter of the gasket (36) is greater than the outer diameter of the first ring body (31), and the gasket (36) abuts against the end of the folded edge (34).

6. A via connector according to claim 5, characterized in that: The electrical device is provided with a connector (200), the connector (200) is provided with a card edge (210), the back cover (10) is provided with a card slot (101), and the card edge (210) is plugged into and matched with the card slot (101).

7. A via connector according to claim 6, characterized in that: A limiting step (220) is provided inside the joint (200) so as to be divided into a first tube body (201) and a second tube body (202); a plurality of limiting protrusions (301) are provided on the first ring body (31); the limiting protrusions (301) cannot pass through the limiting step (220); the third connecting arm (343) abuts against the inner wall of the first tube body (201); and the first ring body (31) and the second tube body (202) are in close contact.

8. A via connector according to claim 6, characterized in that: The back cover (10) comprises a first cover body (11) and a second cover body (12); the first cover body (11) is provided with a plurality of ribs (111); and the card slot (101) is provided on the second cover body (12).

9. The via connector according to claim 1, characterized in that: The second ring body (32) and the third ring body (33) are detachably connected. The second ring body (32) comprises a plurality of connecting edges (322) and connecting segments (323). The connecting edges (322) are arranged between the first ring body (31) and the connecting segments (323). The plurality of connecting segments (323) are distributed in a ring shape and have gaps therein. The connecting segments (323) are provided with convex edges (3231). The third ring body (33) is provided with a plurality of connecting grooves (332). The connecting segments (323) are arranged in the third ring body (33) and the convex edges (3231) and the connecting grooves (332) are plugged into each other.

10. The via connector according to claim 1, characterized in that: The cable (100) is fixed to the copper busbar (300) by welding.

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