Electrical connector shield

Abstract

An electrical connector shielding cover includes a plug shielding cover, the plug shielding cover is provided with an outwardly folded elastic wall, and the elastic wall can form a locking structure with a blocking boss on the inner surface of the shell. The locking surface of the blocking boss is a plane perpendicular to the inner surface of the shell. Beneficial effect: Compared with the prior art, the shielding cover of the utility model is provided with an outwardly folded elastic wall, and the elastic wall and the convex block of the shell form a locking structure to prevent the cable from moving between the cable and the shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a shielding cover of a large current electric connector. Background Art

[0002] High-voltage and high-current connector products are mainly used for strong electrical connections between new energy vehicle batteries, electronic controls and other equipment, realizing quick plug-in and disconnect functions.

[0003] In order to achieve a better shielding effect, a shielding cover is generally provided inside the shell of the electrical connector, and the shielding cover is fixed together with the cable. Due to the plugging and unplugging of the cable, there will be movement between the shielding cover (cable) and the shell, which will affect the use or life of the electrical connector. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to design a current electrical connector shielding cover which can avoid movement between the shielding cover and the housing.

[0005] The specific plan is as follows:

[0006] An electric connector shielding cover comprises a plug shielding cover, on which a spring wall folded outward is provided, and the spring wall can form a locking structure with a blocking boss on the inner surface of a shell.

[0007] The locking surface of the blocking projection is a plane perpendicular to the inner surface of the shell.

[0008] The side surface of the blocking boss facing the locking surface is an inclined surface.

[0009] There are four pairs of blocking bosses and elastic walls.

[0010] The plug shielding cover is provided with a shielding cover insertion cavity, the cross section of which is rectangular, and spring plates are fixed on the four side walls at the entrance of the shielding cover insertion cavity. When the socket shielding cover is inserted into the shielding cover insertion cavity, the four spring plates hold the socket shielding cover tightly.

[0011] The spring plate is formed by bending the side wall at the entrance of the shield cover insertion cavity inwardly. The tail end of the spring plate is a V-shaped plate. The apex of the V-shaped plate is the contact line farthest from the side wall of the shield cover insertion cavity. The contact line is the position of the contact socket shield cover.

[0012] The spring plate is provided with a plurality of strip-shaped dividing holes, and the dividing holes divide the contact line into a plurality of contact line small segments.

[0013] Beneficial effect: Compared with the prior art, the shielding cover of the utility model is provided with an outwardly folded elastic wall, and the elastic wall and the convex blocks of the outer shell form a locking structure to prevent the movement between the cable and the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of an electrical connector.

[0015] Figure 2 It is a schematic diagram of removing the outer shell and exposing the shielding cover.

[0016] Figure 3 It is a cross-sectional schematic diagram of the matching of the shielding cover and the shell.

[0017] Figure 4 yes Figure 3 Enlarged diagram in the upper left corner.

[0018] Figure 5 Schematic diagram of the connection between two shielding covers.

[0019] Figure 6 is a schematic diagram of the shield cover being inserted into the cavity.

[0020] Figure 7 It is an enlarged schematic diagram of the spring plate.

[0021] Figure 8 It is a schematic diagram of the cooperation between the front cover, the outer shell and the inner rubber core.

[0022] Fig. 9 A schematic diagram of the front cover.

[0023] Fig.10 It is a schematic diagram of the spring installation chamber of the inner rubber core.

[0024] Fig.11 It is a schematic diagram of the inner rubber core shrapnel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the present invention.

[0026] like Figure 1-2 An electrical connector includes a housing 100, a plug shielding cover 200 is arranged inside the housing 100, and a spring wall 210 folded outward is arranged on the plug shielding cover 200.

[0027] like Figure 3-4 The inner surface of the housing 100 is fixed with a blocking boss 110 , and the blocking boss 110 and the elastic wall 210 form a locking structure.

[0028] like Figure 4 In order to achieve a better locking effect, the locking surface 111 of the blocking boss 110 is a plane perpendicular to the inner surface of the housing 100 .

[0029] like Figure 1-4 In order to achieve a better locking effect, four pairs of blocking bosses 110 and elastic walls 210 are provided.

[0030] To facilitate assembly, the side surface opposite to the locking surface 111 of the blocking boss 110 is an inclined surface 114 .

[0031] In the prior art, the connection between the shielding cover of most connector plugs and the shielding cover of the socket is relatively loose, resulting in large electromagnetic leakage and poor shielding effectiveness.

[0032] like Figure 5-6 A socket shielding cover 300 is provided in the housing 100, and a shielding cover insertion cavity 220 is provided in the plug shielding cover 200. The cross-section of the shielding cover insertion cavity 220 is rectangular. Spring plates 221 are fixed on the four side walls at the entrance of the shielding cover insertion cavity 220. When the socket shielding cover 300 is inserted into the shielding cover insertion cavity 220, the four spring plates 221 hold the socket shielding cover 300 tightly, thereby contacting the socket shielding. Better wrapping can improve the shielding efficiency of the connector and is more stable.

[0033] like Figure 7 The spring plate 221 is formed by bending the side wall at the entrance of the shield cover insertion cavity 220 inwardly, and the tail end of the spring plate 221 is a V-shaped plate 222. The vertex of the V-shaped plate 222 is the contact line 223 farthest from the side wall of the shield cover insertion cavity 220. The contact line 223 is the position of the contact socket shield cover 300.

[0034] like Figure 7 In order to achieve multi-point clamping, a plurality of strip-shaped dividing holes 224 are provided on the spring plate 221 , and the dividing holes 224 divide the contact line 223 into a plurality of contact line segments 225 .

[0035] The inner rubber core of the existing electrical connector is a component for fixing the cable, and there are no more restraining parts at the end thereof, which makes it unstable and also makes the cable unstable.

[0036] like Figure 8-9 A front cover plate 400 is fixed inside the outer shell 100, and a protruding arm 410 is provided on the front cover plate 400. The protruding arm 410 is perpendicular to the spatial plane where the front cover plate 400 is located. A through hole 150 is provided on the outer shell 100, and a limiting hole 510 is provided on the end surface of the inner rubber core 500. The protruding arm 410 passes through the through hole 150 and is inserted into the limiting hole 510.

[0037] In this way, the front cover plate 400 constrains the end surface of the inner rubber core 500 to prevent the inner rubber core 500 from moving radially, thereby increasing the cable assembly retention force.

[0038] In order to further increase the holding force, the end of the protruding arm 410 close to the front cover plate 400 is a thick section, and the end away from the front cover plate 400 is a thin section 411. The junction between the thick section and the thin section 411 is a step 412. When the thick section passes through the through hole 150 and the thin section 411 is inserted into the limiting hole 510, the step 412 abuts against the end face of the inner rubber core 500.

[0039] To facilitate positioning, the thick section of the protruding arm 410 is loosely matched with the through hole 150 .

[0040] Referring to the patent document with publication (announcement) number CN214542783U, the inner rubber core of the existing electrical connector is provided with a spring slot, and the spring is clamped in the spring slot of the corresponding inner cavity wall of the plug-in shell. Because the spring is a very small component, the spring may be inserted into the spring slot in the wrong direction.

[0041] like Figure 10-11 A spring clip groove 440 is provided in the inner rubber core 400, one end of the spring clip groove 440 is provided with an anti-error structure, and the other end is not provided with an anti-error structure. The spring clip 450 in the spring clip groove 440 includes a strip member 451, one end of the strip member 451 is provided with an anti-error structure, and the other end is not provided with an anti-error structure.

[0042] The spring piece 450 can be inserted into the spring piece slot 440 by the mutual cooperation of the anti-error structure of the spring piece slot 440 and the anti-error structure of the strip 451. If the strip 451 is reversed, the spring piece 450 cannot be inserted into the spring piece slot 440, thereby preventing wrong insertion.

[0043] like Figure 10-11 The anti-error structure of the spring slot 440 is a turning slot 441 , and the anti-error structure of the strip 451 is an elbow 452 , and the turning slot 441 matches the elbow 452 .

[0044] The specific working process is:

[0045] S1. When the blocking boss 110 and the elastic wall 210 are assembled, Figure 4 The elastic wall 210 is installed from right to left, and the elastic wall 210 shrinks inward (close to the side of the plug shielding cover 200) and smoothly passes through the blocking boss 110. When the elastic wall 210 passes through the blocking boss 110, a locking tongue is formed to achieve locking.

[0046] S2. The area enclosed by the connection between the four spring plates 221 and the plug shielding cover 200 (hereinafter referred to as the large area) is larger than the area enclosed by the four contact wires 223 (hereinafter referred to as the small area). The socket shielding cover 300 enters the shielding cover insertion cavity 220 from the large area and gradually reaches the small area. The assembly is relatively smooth, and the four contact wires 223 are tightly held.

[0047] S3. When the protruding arm 410 is assembled with the limiting hole 510, the thin section of the protruding arm 410 can easily enter the through hole 150 because the thin section and the thick section of the protruding arm 410 pass through the through hole 150 in sequence.

[0048] S4. By means of the matching of the turning groove 441 and the elbow 452, the spring piece can be conveniently inserted into the spring piece groove.

[0049] For other details, please refer to the prior art and will not be described in detail.

[0050] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electrical connector shielding cover, comprising a plug shielding cover (200), characterized in that: The plug shielding cover (200) is provided with an outwardly folded elastic wall (210), and the elastic wall (210) can form a locking structure with the blocking boss (110) on the inner surface of the shell (100).

2. The electrical connector shielding cover according to claim 1, wherein: The locking surface (111) of the blocking boss (110) is a plane perpendicular to the inner surface of the housing (100).

3. The electrical connector shielding cover according to claim 2, wherein: The side surface opposite to the locking surface (111) of the blocking boss (110) is an inclined surface (114).

4. The electrical connector shielding cover according to claim 1, wherein: Four pairs of blocking bosses (110) and elastic walls (210) are provided.

5. The electrical connector shielding cover according to claim 1, wherein: The plug shielding cover (200) is provided with a shielding cover insertion cavity (220), the cross section of the shielding cover insertion cavity (220) is rectangular, and spring plates (221) are fixed on four side walls at the entrance of the shielding cover insertion cavity (220); when the socket shielding cover (300) is inserted into the shielding cover insertion cavity (220), the four spring plates (221) hold the socket shielding cover (300) tightly.

6. The electrical connector shielding cover according to claim 5, wherein: The spring plate (221) is formed by bending the side wall at the entrance of the shield cover insertion cavity (220) inwardly, the tail end of the spring plate (221) is a V-shaped plate (222), the apex of the V-shaped plate (222) is a contact line (223) farthest from the side wall of the shield cover insertion cavity (220), and the contact line (223) is a position that contacts the socket shield cover (300).

7. The electrical connector shielding cover according to claim 6, wherein: The spring plate (221) is provided with a plurality of strip-shaped dividing holes (224), and the dividing holes (224) divide the contact line (223) into a plurality of contact line segments (225).

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