High voltage connector housing assembly

Abstract

The utility model discloses a high-voltage connector shell assembly, relates to the technical field of connectors, and solves the problem that the sealing performance and the assembly firmness of the shell assembly are sacrificed after the structure is simplified. The shell is provided with a matching port, a surrounding fence plate is arranged on the periphery of the matching port, a buckling block is integrally arranged on the inner side face of the surrounding fence plate, the end cover extends towards one side of the shell to be provided with an inner ring piece, a buckling hole is formed in the inner ring piece, the inner ring piece is attached to the inner side face of the surrounding fence plate, and the buckling hole and the buckling block are matched to form buckling connection. The buckling block and the buckling hole are in buckling butt joint, the position of the buckling block is not prone to being affected by stress and damaged, the buckling block is more durable than a traditional elastic protrusion, the whole surrounding breast board is used for supporting the bottom of the buckling block, the buckling block can be kept in a good fixing state, and therefore the problem that a traditional vertical buckle is prone to breakage is solved. Therefore, the connection stability between the end cover and the shell is enhanced, the displacement of the sealing ring caused by loose connection is effectively prevented, and the overall sealing performance of the connector is further maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially a high pressure connector casing assembly. BACKGROUND

[0002] High pressure connector generally is composed of casing, terminal, sealing ring, end cover and terminal locking piece. Among them, the terminal is inserted into the casing, the sealing ring is arranged at the port of the casing, the end cover is installed at the same port, and its function is to fix the position of the sealing ring, and the terminal locking piece is embedded in the special slot on the casing and is connected with the terminal, so as to ensure that the terminal is firmly locked inside the casing and prevent it from falling off accidentally. In order to save the terminal locking piece and reduce the complexity of assembly, the prior art discloses CN216958665U, sealing ring end cover, connector casing assembly and Chinese utility model patent of connector, which reduces the assembly difficulty of the connector to a certain extent through the terminal blocking part. Although this structure simplifies the assembly process of the connector to a certain extent, it also brings some new problems. In the actual use and assembly process of the product, the retaining part on the sealing ring end cover is provided with an elastic protrusion, and the elastic protrusion needs to be connected through a buckle. However, due to the vertical shape of the elastic protrusion, it is easy to be broken by lateral external force during assembly, thereby causing the loosening between the sealing ring end cover and the casing, and finally affecting the sealing performance of the sealing ring. Therefore, how to simplify the assembly while ensuring the good cooperation and stability between the components of the connector is still a technical problem to be solved. SUMMARY

[0003] The utility model discloses a high pressure connector casing assembly, which overcomes the defects of the prior art and simplifies the structure while ensuring the sealing performance and assembly firmness of the casing assembly.

[0004] The utility model discloses a technical scheme, which comprises a casing, a sealing ring and an end cover. The casing has a mating port, and a surrounding fence plate is arranged around the mating port. The surrounding fence plate is integrally provided with a protruding buckle on the inner side surface. The end cover extends to one side of the casing and is provided with an inner ring piece. The inner ring piece is provided with a buckle hole. The inner ring piece is attached to the inner side surface of the surrounding fence plate, and the buckle hole and the buckle are adaptively connected to form a buckle connection.

[0005] The technical scheme is adopted, the buckle block is integrally arranged on the inner side of the surrounding fence plate, and the buckle hole is arranged on the inner ring piece of the end cover, the buckle block and the buckle hole are butt-jointed, the position of the buckle block is not easily damaged by force, the buckle block is more durable than the traditional elastic protrusion, the whole surrounding fence plate is used as the bottom support, the buckle block can maintain a good fixed state, the problem of easy breakage of the traditional vertical buckle is avoided, the connection stability between the end cover and the shell is improved, the displacement of the sealing ring caused by loose connection is effectively prevented, and the overall sealing performance of the connector is maintained.

[0006] In a possible design, the outer edge of the end cover has an inclined pressing ring edge, the inner side of the inclined pressing ring edge forms a ring groove, the bottom of the surrounding fence plate forms a step, the sealing ring outer sleeve is tightly installed on the outer peripheral surface of the surrounding fence plate, and the axial two sides of the sealing ring are respectively arranged in the step and the ring groove, and the inclined pressing ring edge is further elastically pressed on the outer peripheral surface of the sealing ring.

[0007] The design is adopted, the axial two sides of the sealing ring are respectively arranged in the step and the ring groove, and the inclined pressing ring edge elastically presses the outer peripheral surface of the sealing ring, so that the contact surface of the sealing ring and the shell is more closely combined, the sealing performance of the connector is effectively improved, the sealing ring is prevented from being easily moved or dislocated, the possibility of loosening caused by vibration or external force is reduced, and the reliability of the connector as a whole is improved; in addition, this way simplifies the installation process of the sealing ring, the sealing ring is arranged in the specific step and the ring groove, and is fixed by the inclined pressing ring edge, so that the installation is more convenient, and the risk of sealing failure caused by improper installation is also reduced.

[0008] In a possible design, the step is concave and has a plurality of positioning grooves, and the axial inner side of the sealing ring has a plurality of positioning ribs, the positioning ribs are arranged in the positioning grooves for positioning and cooperation.

[0009] The design is adopted, through the cooperation of the positioning ribs and the positioning grooves, the sealing ring can be accurately aligned with its position on the shell during installation, the deviation or misalignment during installation is avoided, the installation accuracy is improved, the position stability is improved, the installation and disassembly are simplified, the small gap at the connection part is effectively filled, and the risk of leakage caused by the position change of the sealing ring is reduced.

[0010] In a possible design, the axial outer side of the sealing ring has an L-shaped reinforcing protrusion surrounded by four corner positions, a space is arranged between the L-shaped reinforcing protrusions, four inner grooves are further concave and arranged in the ring groove towards the inner side of the end cover, a blocking rib is formed between the inner grooves, the inner grooves are in extrusion contact with the L-shaped reinforcing protrusions, and the blocking rib is arranged in the space for positioning and cooperation.

[0011] With the above design, the L-shaped reinforcing protrusion and the inner groove in the ring groove are in extrusion contact with each other, which can provide additional fixing effect, improve the stability of the sealing ring during use, and form the characteristics of multiple gap bends to reduce the risk of leakage and further improve the sealing performance of the connector.

[0012] In a possible design, the surface of the end cover is provided with a plurality of right-angle notches, and the adjacent right-angle notches have bevel edges, and the right-angle notches and the bevel edges form positioning and pairing with the bevel edges and the right-angle notches of the mating connector shell, respectively.

[0013] With the above design, the end cover can be accurately paired with the corresponding structure on the mating connector shell during installation, thereby ensuring the positional accuracy of the connector during assembly, and the end cover is pressed by the contact pressure of the mating connector shell, which can further extrude the sealing ring to improve the sealing performance of the connector in the connected state. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of an embodiment of the utility model;

[0015] Figure 2 is an exploded view of an embodiment of the utility model;

[0016] Figure 3 is a perspective sectional view of an embodiment of the utility model;

[0017] Figure 4 is the utility model Figure 3 is a local enlarged view of A in the utility model;

[0018] Figure 5 is a perspective sectional view of the end cover of the utility model;

[0019] Figure 6 is a structural schematic view of the sealing ring of the utility model.

[0020] Wherein, 1, shell; 11, mating port; 12, enclosure fence; 121, buckle block; 122, step; 123, positioning groove; 2, sealing ring; 21, positioning convex rib; 22, L-shaped reinforcing protrusion; 23, interval; 3, end cover; 31, inner ring piece; 311, buckle hole; 32, bevel ring edge; 33, ring groove; 34, inner groove; 35, blocking edge; 36, right-angle notch; 37, bevel edge. DETAILED DESCRIPTION

[0021] As Figures 1-4The high-voltage connector housing assembly shown includes a housing 1, a sealing ring 2, and an end cover 3. The housing 1 has a mating port 11 with a surrounding fence plate 12 surrounding the periphery of the mating port 11. The surrounding fence plate 12 is outwardly protruding to form a plate shape. The inner side of the surrounding fence plate 12 is integrally provided with a protruding inner side buckle 121. The buckle 121 is in the shape of a truncated pyramid with a straight cross section, so that one side of the buckle 121 has a guide slope. The end cover 3 extends to one side of the housing 1 and is provided with an inner ring 31. The inner ring 31 is arranged in a ring shape. The inner ring 31 is provided with a buckle hole 311. The inner ring 31 is in contact with the inner side of the surrounding fence plate 12. The buckle hole 311 and the buckle 121 are adapted to form a buckle connection. During assembly, the end cover 3 is aligned with the surrounding fence plate 12. The inner ring 31 is in contact with the inner side of the surrounding fence plate 12. The buckle 121 is placed in the buckle hole 311 to form a buckle butt joint. The position of the buckle 121 is relatively located in the inner side of the housing 1 and protrudes outwardly from the inner side of the surrounding fence plate 12. Compared with the vertical buckle shape of the prior art, the structural strength of the buckle 121 is more reliable, and the connection between the end cover 3 and the housing 1 is more stable. The above-mentioned optimized structure not only solves the problems of sealing and connection firmness in the prior art, but also ensures good cooperation between the parts of the connector while simplifying the assembly.

[0022] In order to improve the sealing and waterproof performance of the structure adjustment, the outer edge of the end cover 3 is provided with a beveled ring edge 32. The inner side of the beveled ring edge 32 forms a ring groove 33. The bottom of the surrounding fence plate 12 forms a step 122. The sealing ring 2 is tightly fitted on the outer peripheral surface of the surrounding fence plate 12. The axial sides of the sealing ring 2 are respectively located in the step 122 and the ring groove 33. In this way, it is ensured that the sealing ring 2 can be squeezed on both sides during installation. That is, the step 122 and the ring groove 33 work together to prevent the sealing ring 2 from moving or dislocating easily. The beveled ring edge 32 also elastically extrudes the outer peripheral surface of the sealing ring 2. The beveled ring edge 32 also elastically extrudes the outer peripheral surface of the sealing ring 2. This can better make the sealing ring 2 tightly combined with the contact surface of the housing 1, prevent external contaminants from entering the connector, and make the sealing ring 2 still maintain good sealing effect during long-term use.

[0023] As shown in Figures 3-6 The step 122 is provided with a plurality of positioning grooves 123. The inner side of the sealing ring 2 is provided with a corresponding positioning rib 21. The positioning rib 21 is located in the positioning groove 123 to position and cooperate. This ensures that the sealing ring 2 is installed at the predetermined accurate position, avoiding deviation or misplacement during assembly. At the same time, the assembly and disassembly process of the sealing ring 2 is more simple and intuitive. Only the positioning rib 21 on the sealing ring 2 is aligned with the positioning groove 123 on the housing 1 to complete the assembly, which simplifies the assembly and maintenance process.

[0024] As shown in Figures 4-6As shown, the outer side of the sealing ring 2 has four corner positions surrounded by L-shaped reinforcing protrusions 22, and the L-shaped reinforcing protrusions 22 are provided with intervals 23. Four inner grooves 34 are further recessed in the inner side of the end cover 3, and the inner grooves 34 are formed with stop edges 35. The inner grooves 34 are in extrusion contact with the L-shaped reinforcing protrusions 22, and the stop edges 35 are positioned in the intervals 23 for positioning and cooperation. The L-shaped reinforcing protrusions 22 can actually compensate for the sealing performance, especially at the four corner positions, which can effectively prevent the sealing ring 2 from leaking due to excessive deformation in a high-pressure environment, and ensure that it can maintain good sealing performance when subjected to a large pressure. The cooperation of the intervals 23 and the stop edges 35 can accurately position the sealing ring 2 during installation, ensuring that each installation can achieve the best sealing effect.

[0025] As shown, Figures 1-4 The surface of the end cover 3 of the shell assembly is provided with a plurality of right-angle notches 36, and the adjacent right-angle notches 36 have bevel edges 37. Of course, the shell 1 assembly is also provided with corresponding bevel edges 37 and right-angle notches 36 for the mating connector shell 1. The right-angle notches 36 and the bevel edges 37 of the mating connector shell 1 form positioning and mating respectively, ensuring the positional accuracy of the connector during assembly. At the same time, the end cover 3 will extrude the sealing ring 2 when subjected to contact pressure, thereby further improving the sealing performance of the connector in the connected state.

Claims

1. A high-voltage connector housing assembly comprising a housing (1), a sealing ring (2) and an end cap (3), characterized in that: The shell (1) has a mating port (11) with a peripheral enclosing fence plate (12) integrally provided with a protruding buckle (121) on the inner side of the fence plate (12), the end cover (3) extends to the side of the shell (1) and is provided with an inner ring piece (31) with a buckle hole (311), the inner ring piece (31) is in contact with the inner side of the fence plate (12), and the buckle hole (311) and the buckle (121) are adapted to form a snap connection.

2. The high voltage connector housing assembly of claim 1, wherein: The outer edge of the end cover (3) has an inclined pressing ring (32), the inner side of the inclined pressing ring (32) forms a ring groove (33); the bottom of the enclosing fence plate (12) forms a step (122), the sealing ring (2) is tightly installed on the outer peripheral surface of the enclosing fence plate (12), and the axial both sides of the sealing ring (2) are respectively placed in the step (122) and the ring groove (33), and the inclined pressing ring (32) is further elastically extruded on the outer peripheral surface of the sealing ring (2).

3. The high voltage connector housing assembly of claim 2, wherein: The step (122) is concave and provided with a plurality of positioning grooves (123), the axial inner side of the sealing ring (2) has a plurality of positioning convex edges (21), the positioning convex edges (21) are placed in the positioning grooves (123) for positioning and matching.

4. The high voltage connector housing assembly of claim 2, wherein: The axial outer side of the sealing ring (2) has an L-shaped reinforcing protrusion (22) surrounded by four corner positions, the L-shaped reinforcing protrusion (22) is provided with a spacing (23) therebetween, the ring groove (33) is further concave and provided with four inner grooves (34) in the inner side direction of the end cover (3), the inner grooves (34) form a blocking edge (35) therebetween, the inner grooves (34) are in extrusion contact with the L-shaped reinforcing protrusion (22), and the blocking edge (35) is placed in the spacing (23) for positioning and matching.

5. The high voltage connector housing assembly of claim 1 or 2, wherein: The surface of the end cover (3) is provided with a plurality of right-angle notches (36), adjacent right-angle notches (36) have an inclined edge (37), and the right-angle notches (36) and the inclined edge (37) form positioning and matching with the inclined edge (37) and the right-angle notches (36) of the mating connector shell (1) respectively.

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