A through-the-cylinder connector

Abstract

The utility model discloses a kind of through-cylinder connectors, it is related to connector technical field, solve the problem of complex structure, high cost, assembly and maintenance inconvenience in prior art connector.The utility model includes main casing, shielding ring is equipped in main casing, oblique ring spring is sleeved on shielding ring, the other end of shielding ring is equipped with seal line body and the tail cover for fixing seal line body.The utility model main casing is assembled together with the wire harness and the tail cover and the wire harness that cooperation is done, overall application in the electrical connection and protection on the equipment such as vehicle-mounted multi-in-one controller, it is easy to operate to assemble and disassemble, it is convenient to install and maintain, protection performance is good, simple and reliable structure.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a cylinder-type connector. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the integration of vehicle electrical systems is constantly improving, and the demand for electrical connections between key devices such as multi-function controllers is increasing. To achieve safe and reliable circuit connections, connectors are typically installed at the ends of wiring harnesses to provide necessary electrical protection and connectivity. In practical applications, cylinder-through connectors, as crucial components connecting controllers to external systems, directly impact the stability and safety of the entire vehicle's electrical system. As the industry's requirements for lightweight, modular, and easy-to-maintain vehicles continue to rise, higher standards are being placed on connector performance, including good sealing, mechanical strength, electrical reliability, and easy assembly and disassembly. Currently, similar products on the market can be broadly divided into two categories: one pursues high protection performance with complex structural designs, which, while meeting the requirements of harsh environments, suffer from high costs and inconvenient assembly and maintenance; the other aims to reduce costs and simplify structural designs, but often compromises on protection performance and connection reliability, making it difficult to meet the needs of high-reliability applications.

[0003] Existing technology, such as the patent disclosed in CN 210692863 U, discloses a high-voltage cylinder connector suitable for large-diameter wires, including a shielding circuit assembly, a protective cover assembly, an outer shielding ring, a housing, an outer sealing ring, a cable sealing ring, and terminals. The cable is fitted with a cable sealing ring and passes through the protective cover assembly, housing, and shielding circuit assembly in sequence before being crimped to the terminals. The housing is mounted on the battery pack shell inside the vehicle, and the outer sealing ring is fitted on the outside of the housing. The shielding circuit assembly includes shielding terminals, retaining latches, and an inner shielding ring assembled together. The shielding terminals and retaining latches are connected by a corrugated pipe clamp ring with hard interference. The shielding terminals are fitted on the inner shielding ring, and the inner shielding ring and outer shielding ring are connected by crimping. The shielding terminals are in contact with the battery pack shell inside the vehicle. This structure can reduce contact resistance and improve shielding continuity to a certain extent. However, the above solution still belongs to the "high protection - complex structure" type: the large number of parts, the layered shielding and sealing result in large axial dimensions, long assembly paths, and high costs. Multiple sealing rings and shielding rings need to be fitted sequentially, and the ease of assembly and disassembly is insufficient.

[0004] Therefore, existing technologies still suffer from drawbacks such as complex structure, high cost, and inconvenient assembly and maintenance. There is an urgent need for a new type of cylinder connector that can maintain a high level of protection while having fewer parts, easier assembly and disassembly, and lower cost. Utility Model Content

[0005] To address the shortcomings of the aforementioned background technology, this utility model proposes a cylinder-through connector, which solves the problems of complex connector structure, high cost, and inconvenient assembly and maintenance in the prior art.

[0006] The technical solution of this utility model is implemented as follows: a cylinder-type connector includes a main housing, a shielding ring is provided inside the main housing, a slanted spring is sleeved on the shielding ring, and a sealing body and a tail cap for fixing the sealing body are provided at the other end of the shielding ring.

[0007] More preferably, the shielding ring is provided with an annular groove that cooperates with the inclined coil spring.

[0008] More preferably, the shielding ring is provided with a mounting groove that mates with the main housing.

[0009] More preferably, the main housing is provided with an annular groove II, and an interface rubber ring is fitted on the annular groove II.

[0010] Further preferably, the main housing is also provided with a connecting part, and the connecting part is provided with a bushing and an anti-misalignment protrusion.

[0011] More preferably, the tail cap is provided with a slot that mates with the main housing.

[0012] More preferably, the tail cover is provided with an arc-shaped plate, and the arc-shaped plate is provided with a locking hole, which is engaged with a locking protrusion provided on the main housing.

[0013] More preferably, the tail cap is provided with a corrugated tube retainer for securing the wire harness.

[0014] More preferably, the corrugated pipe retainer includes two arc-shaped plates that are connected end to end to form a ring structure. One end of the arc-shaped plate is provided with a retaining protrusion, and the other end of the arc-shaped plate is provided with a retaining hole that engages with the corresponding retaining protrusion.

[0015] More preferably, the inner wall of the bellows retainer is provided with a second anti-misalignment protrusion that mates with the retaining groove on the bellows retainer.

[0016] The beneficial effects of this utility model are as follows: 1. The main housing of this utility model is assembled with the wiring harness and tail cover together with the pre-made wiring harness. The whole assembly is used for electrical connection and protection in equipment such as vehicle multi-in-one controller. The assembly and disassembly operation is simple, convenient for installation and maintenance, with good protection performance and simple and reliable structure.

[0017] 2. The shielding ring has a mounting groove that fits into the main housing, which can effectively reduce the radial wobble of the wire harness in the connector housing; at the same time, the wire harness has a slight axial movement allowance, which can effectively reduce the product's requirements for the customer's wire harness dimensional accuracy; in addition, the use of a slanted coil spring as a shielding contact part ensures that the product can be gently plugged into the equipment during customer assembly, and the customer's wire harness terminals can be easily connected to the equipment.

[0018] 3. The connector tail cover is also designed with a slot that fits into the main housing, which can effectively reduce the radial movement after the tail cover is assembled. In addition, the long cable guide structure of the tail cover can effectively reduce the sway of the wire harness in the connector housing and ensure the sealing and protection function.

[0019] 4. The corrugated pipe clamp is designed with two semi-ring structures, eliminating the need for pre-assembly before wiring. When assembling the wire harness onto the connector, simply snap the two anti-misalignment protrusions on the corrugated pipe clamp onto the end cap flange, i.e., the clamping groove. If the customer uses heat shrink tubing or other methods to fix the corrugated pipe, this clamp can be removed without affecting the connector's function. The configuration is flexible and easy for customers to choose from. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention in its usage state; Figure 4 This is a schematic diagram of the structure of a bellows retainer; Figure 5 This is a diagram showing the usage status of bellows retainers.

[0022] In the diagram: 1. Inclined spring, 2. Shielding ring, 2-1. Annular groove one, 3. Interface rubber ring, 4. Main housing, 4-1. Annular groove, 4-2. Annular groove two, 4-3. Locking protrusion, 5. Sealing body, 6. Tail cap, 6-1. Slot, 6-2. Locking hole, 7. Pipe clamp, 7-1. Arc plate, 7-2. Snap-fit ​​protrusion, 7-3. Snap-fit ​​hole, 7-4. Installation anti-misalignment protrusion two, 8. Bushing, 9. Installation anti-misalignment protrusion one. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 and Figure 2 As shown in Embodiment 1, a through-cylinder connector includes a main housing 4, a shielding ring 2 inside the main housing 4, a helical coil spring 1 fitted on the shielding ring 2, a wire sealing body 5 at the other end of the shielding ring 2, and a tail cap 6 for fixing the wire sealing body 5. The main housing 4 of this device is assembled with a pre-made wire harness through the cooperation of the helical coil spring 1, the shielding ring 2, the wire sealing body 5, and the tail cap 6. The entire assembly is used for electrical connections in devices such as vehicle-mounted multi-function controllers. It features simple assembly and disassembly, convenient installation and maintenance, good protective performance, and a simple and reliable structure.

[0025] like Figure 1 and Figure 2 As shown in Embodiment 2, a through-cylinder connector is provided, wherein the shielding ring 2 is provided with an annular groove 2-1 that mates with the inclined coil spring 1. The shielding ring 2 is provided with a mounting groove 2-2 that mates with the main housing 4. The mounting groove 2-2 of the shielding ring 2 that fits into the main housing 4 can effectively reduce the radial wobble of the wire harness in the connector housing; at the same time, the wire harness has a slight allowance for axial movement, which can effectively reduce the product's requirements for the customer's wire harness dimensional accuracy; in addition, the use of the inclined coil spring 1 as a shielding contact part ultimately ensures that the product can be gently inserted into the equipment during customer assembly, and the customer's wire harness terminals can be easily connected to the equipment.

[0026] All other structures are the same as in Example 1.

[0027] like Figures 1-3As shown in Embodiment 3, a through-cylinder connector is provided. The main housing 4 has an annular groove 4-1, and an interface rubber ring 3 is fitted on the annular groove 4-1. The main housing 4 also has a connecting part, which has a bushing 8 and a mounting anti-misalignment protrusion 4-3. The annular groove 4-1 and the interface rubber ring 3 cooperate to achieve a sealing effect: the interface rubber ring 3 is preferably fluororubber or silicone rubber, which is temperature-resistant and chemically resistant, and achieves tolerance compensation. The interface rubber ring 3 forms a radial seal at the mounting interface between the through-cylinder connector and the equipment, preventing coolant, dust and moisture from entering the equipment from the mounting hole, meeting the IP68 protection level. The bushing 8 and the mounting anti-misalignment protrusion 4-3 are provided on the connecting part. The bushing 8 can increase torsional / tensile resistance: the bushing 8 is embedded in the through hole of the connecting part and cooperates with bolts or screws to transfer the load of the plastic main housing 4 to the metal bushing 8, preventing the plastic hole from being crushed or creeped during repeated disassembly and assembly. Install the anti-misalignment protrusion 4-3 and match the corresponding notch at the sheet metal hole to achieve a unique insertion angle, avoiding incorrect cable connection when there are multiple holes on the equipment.

[0028] All other structures are the same as in Example 2.

[0029] like Figure 3 As shown in Embodiment 4, a through-cylinder type connector is provided. The tail cover 6 has a groove 6-1 that mates with the main housing 4. The tail cover 6 has an arc-shaped plate 7-1 with a locking hole 6-2, which engages with a locking protrusion 4-2 on the main housing 4. The connector tail protective cover is also designed with a groove 6-1 that fits into the main housing 4, which can effectively reduce the radial movement of the tail cover 6 after assembly. In addition, the long cable guide structure of the tail cover 6 can effectively reduce the sway of the wire harness in the connector housing and ensure the sealing and protection function.

[0030] All other structures are the same as in Example 3.

[0031] like Figure 4 and Figure 5 As shown in Embodiment 5, a through-cylinder connector is provided with a corrugated tube retainer 7 for fixing the wire harness on the tail cap 6. The corrugated tube retainer 7 includes at least two arc-shaped plates 7-1 connected end-to-end to form a ring structure. One end of the arc-shaped plate 7-1 has a fastening protrusion 7-2, and the other end of the arc-shaped plate 7-1 has a fastening hole 7-3 that mates with the corresponding fastening protrusion 7-2. The inner wall of the corrugated tube retainer 7 has a second mounting anti-misalignment protrusion 7-4 that mates with the snap-fit ​​groove 6-3 on the corrugated tube retainer 7. The corrugated tube retainer 7 is designed as a two-half-ring structure, which can eliminate the pre-assembly step before the wire harness is assembled. When the wire harness is assembled onto the connector, the second mounting anti-misalignment protrusion 7-4 on the corrugated tube retainer 7 is snapped onto the flange of the tail cap 6, i.e., the snap-fit ​​groove 6-3. If the customer uses heat shrink tubing or other methods to fix the corrugated tube, this tube clamp 7 can also be removed without affecting the function of the connector. The configuration is flexible and convenient for customers to choose.

[0032] All other structures are the same as in Example 4.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylinder-penetrating connector, characterized in that, It includes a main housing (4), a shielding ring (2) is provided inside the main housing (4), a slanted spring (1) is fitted on the shielding ring (2), and a sealing body (5) and a tail cap (6) for fixing the sealing body (5) are provided at the other end of the shielding ring (2).

2. The cylinder-penetrating connector according to claim 1, characterized in that, The shielding ring (2) is provided with an annular groove (2-1) that cooperates with the inclined spring (1).

3. The cylinder-penetrating connector according to claim 2, characterized in that, The shielding ring (2) is provided with a mounting groove (2-2) that mates with the main housing (4).

4. The cylinder-penetrating connector according to claim 2 or 3, characterized in that, The main housing (4) is provided with an annular groove 2 (4-1), and an interface rubber ring (3) is fitted on the annular groove 2 (4-1).

5. The cylinder-penetrating connector according to claim 4, characterized in that, The main housing (4) is also provided with a connecting part, and the connecting part is provided with a bushing (8) and a mounting anti-misalignment protrusion (4-3).

6. The cylinder-penetrating connector according to any one of claims 1 to 3 and 5, characterized in that, The tail cap (6) is provided with a slot (6-1) that mates with the main housing (4).

7. The cylinder-penetrating connector according to claim 6, characterized in that, The tail cap (6) is provided with an arc plate (7-1), and the arc plate (7-1) is provided with a locking hole (6-2). The locking hole (6-2) is engaged with the locking protrusion (4-2) provided on the main housing (4).

8. The cylinder-penetrating connector according to any one of claims 1 to 3, 5, and 7, characterized in that, The tail cap (6) is provided with a corrugated tube retainer (7) for fixing the wire harness.

9. The cylinder-penetrating connector according to claim 8, characterized in that, The corrugated pipe retainer (7) includes two arc-shaped plates (7-1) that are connected end to end to form a ring structure. One end of the arc-shaped plate (7-1) is provided with a retaining protrusion (7-2), and the other end of the arc-shaped plate (7-1) is provided with a retaining hole (7-3) that cooperates with the corresponding retaining protrusion (7-2).

10. The cylinder-type connector according to claim 9, characterized in that, The inner wall of the bellows retainer (7) is provided with anti-misalignment protrusions (7-4).

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