Compression-resistant puncture type connector for new energy automobile

Abstract

The utility model discloses a compression-resistant puncture type connector for a new energy automobile, which comprises a front cover, a rear cover, a protective cover and a terminal, and is characterized in that the front cover is provided with a slot for assembling a plate end; the front end and two sides of the protective cover are of opening structures, the top surface of the protective cover extends forwards to form a plurality of extension parts, a plurality of positioning blocks are arranged on the front cover, and the extension parts are inserted from gaps among the positioning blocks to be assembled and fixed with the front cover; the front end of the bottom surface of the protective cover is provided with a blocking part. After the plate end and the bottom surface of the protective cover are inserted into the slot of the front cover, the blocking part is blocked between the plate end and the terminal to prevent electric contact. By improving the buckling part, the protective cover is directly buckled on the front cover, so that the structure is simpler and more effective; the protective cover extends forwards to form the extension part, and the extension part is clamped among the positioning blocks to form multi-point support, so that the structure is more compact and stable, and the overall shock resistance and impact resistance are improved; the front end and the two sides of the connector are opened, so that the connector is suitable for a puncture type connector with two closed sides.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection device technology, and in particular to a piercing connector. Background Technology

[0002] Connectors are crucial components for achieving electrical connections, primarily used for transmitting power or electrical signals. When the board end is an aluminum substrate, to prevent electrical contact between the back of the aluminum substrate and the terminals, thus avoiding electrical interference, Chinese utility model patent CN218896837U discloses a piercing connector compatible with various board thicknesses. Its cover can isolate one side of the aluminum substrate from electrical contact with the terminals. However, this cover is only suitable for piercing connectors with openings on both sides and suffers from insufficient stability, easy loosening, stress concentration, and a tendency to break at the front. Furthermore, current piercing connectors, when assembled on the board end (such as a PCB), typically achieve mechanical interlocking through the housing's mounting structure and pre-set positioning holes or slots on the board end. Under long-term dynamic loads, especially during the starting or acceleration / deceleration of new energy vehicles, this results in uneven stress and insufficient mechanical connection reliability. Utility Model Content

[0003] This invention addresses the shortcomings of existing puncture-type connectors with covers that are only suitable for openings on both sides, and which lack stability, are prone to loosening, and are easily broken. It provides a pressure-resistant puncture-type connector for new energy vehicles with a more reasonable structural design, better adaptability, and less prone to loosening.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a puncture-resistant connector for new energy vehicles, comprising a front cover, a rear cover, a protective cover, and terminals, wherein the terminals, the rear cover, and the front cover are assembled and fixed, and the front cover has a slot for assembling the plate end; the front end and both sides of the protective cover are provided with an opening structure that can be inserted into the front cover, the top surface of the protective cover extends forward to form several extensions, and several positioning blocks are provided on the front cover, the extensions are inserted into the gaps between the positioning blocks and assembled and fixed with the front cover; the front end of the bottom of the protective cover is provided with a downwardly protruding partition, and after the plate end and the bottom surface of the protective cover are inserted into the slot of the front cover, the partition blocks the plate end and the terminal to form a conductive isolation structure.

[0005] Furthermore, the extension includes clamping arms on both sides and several positioning arms in the middle. The sides of the clamping arms have hooks. After the cover is inserted and fixed to the front cover, the positioning blocks are secured by the hooks.

[0006] Furthermore, the clamping arm is a sloping structure that tapers inward from the outside, so that the clamping arm forms a wedge-shaped structure that is narrow at the front and wide at the back; chamfers are provided on the inner front side of the clamping arm and on both sides of the front end of the positioning arm.

[0007] Furthermore, the cover has a U-shaped cross-section, and the front end of the front cover is inserted into the cover through the U-shaped opening of the cover; the entire cover is made of plastic material in one piece.

[0008] Furthermore, elastic arms are provided on both sides of the front cover, and groove-shaped structures are provided on the sides of the elastic arms, with protruding limiting parts in the groove-shaped structures; buckle arms are provided on both sides of the front end of the plate end, and the plate end and the front cover are assembled and fixed by the buckle arms engaging with the limiting parts.

[0009] Furthermore, the inner front end of the latching arm is provided with a chamfered structure, and the front of the limiting part is provided with a beveled surface that matches the chamfered structure. When the plate end is assembled, the chamfered structure of its latching arm passes over the beveled surface of the limiting part and then locks the limiting part.

[0010] Furthermore, clamping ribs are provided on both the top and bottom surfaces of the slot in the front cover, and the clamping ribs clamp the plate end after the plate end is inserted into the slot.

[0011] Furthermore, plug arms are provided on both sides of the front cover, located inside the elastic arms. Both the elastic arms and the plug arms extend backward, and there is a gap between the plug arms and the elastic arms. The rear cover is plugged into and fixed to the front cover from the rear end of the front cover, and the plug arms and elastic arms are locked on both sides of the rear cover.

[0012] Furthermore, insertion slots are provided on both sides of the rear cover, and after the rear cover and the front cover are assembled, the insertion arm is inserted into the insertion slot.

[0013] Furthermore, two protective arms are provided on both sides of the back cover. The two protective arms are located on the upper and lower sides of the insertion slot, respectively. After the back cover and the front cover are assembled, the protective arms block the upper and lower sides of the elastic arm, which can protect the elastic arm.

[0014] This invention improves the fastening mechanism, changing the original method of requiring special slotting for fastening to a direct fastening onto the front cover, resulting in a simpler and more effective structure. The cover extends forward to form an extension portion, which engages with multiple positioning blocks to create multi-point support, making the structure more compact and stable, and improving overall shock resistance and impact resistance. With openings at the front and sides, it can be used with piercing connectors that are closed on both sides. Furthermore, the snap-fit ​​arms at the plate end insert into the side wall of the front cover, increasing support points and reducing stress concentration, creating a multi-dimensional constraint between the connector and the plate end, resulting in greater stability and higher shock resistance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention in conjunction with the plate end;

[0016] Figure 2 This is an exploded structural diagram of the present invention in conjunction with the plate end;

[0017] Figure 3This is a three-dimensional structural diagram of the present invention after the protective cover has been removed and the plate end is assembled.

[0018] Figure 4 This is a three-dimensional structural diagram of the front cover of this utility model;

[0019] Figure 5 This is a top view of the front cover of this utility model;

[0020] Figure 6 This is a structural diagram of the back cover of this utility model;

[0021] Figure 7 This is a top view of the protective cover of this utility model;

[0022] Figure 8 This is a side view of the protective cover of this utility model.

[0023] In the diagram, 1 is the front cover, 11 is the elastic arm, 12 is the plug-in arm, 13 is the limiting part, 14 is the positioning block, 15 is the clamping rib, 2 is the rear cover, 21 is the protective arm, 22 is the plug-in groove, 3 is the protective cover, 31 is the clamping arm, 32 is the positioning arm, 33 is the partition part, 4 is the terminal, 5 is the plate end, and 51 is the buckle arm. Detailed Implementation

[0024] In this embodiment, refer to Figures 1-8 A puncture-resistant connector for new energy vehicles includes a front cover 1, a rear cover 2, a protective cover 3, and terminals 4. Terminals 4, the rear cover 2, and the front cover 1 are assembled and fixed to form a complete connector. The front cover 1 has a slot for mounting a plate end 5; the front end of the protective cover 3 (here, the front end refers to...) Figure 2 The top surface of the cover 3 (facing the end into which the front cover is inserted) and the sides are designed with openings that allow it to be inserted into the front cover 1. Figure 2 From the perspective of the top surface (the top), the extensions extend forward to form several extensions. Several positioning blocks 14 are provided on the front cover 1. The extensions are inserted into the gaps between the positioning blocks 14 and assembled and fixed with the front cover 1. The bottom front end of the cover 3 is provided with a downward protruding partition 33. After the plate end 5 and the bottom surface of the cover 3 are inserted into the slot of the front cover 1, the partition 33 blocks the plate end 5 and the terminal 4 to form a conductive isolation structure, preventing the plate end 5 from making electrical contact with the terminal after insertion.

[0025] like Figure 7 and Figure 8 As shown, the extension includes clamping arms 31 on both sides and several positioning arms 32 in the middle. The sides of the clamping arms 31 have hooks. After the cover 3 is inserted and fixed to the front cover 1, the positioning block 14 is fastened by the hooks to achieve fixation.

[0026] The clamping arm 31 has an inclined surface structure that slopes inward from the outside to form a wedge-shaped structure that is narrow at the front and wide at the back (i.e., a non-parallel structure). This allows for more flexible space when inserting the cover 3, making the operation smoother. The inner front end of the clamping arm 31 and both sides of the front end of the positioning arm 32 are chamfered to facilitate insertion between the positioning blocks 14.

[0027] The cover 3 has a U-shaped cross-section, and the front end of the front cover 1 (here, the front end refers to the...) Figure 2 (From the perspective of the end of the cover to be inserted) it is inserted into the cover 1 through the U-shaped opening of the cover 3; the entire cover 3 is made of plastic material in one piece.

[0028] like Figure 4 and Figure 5 As shown, elastic arms 11 are provided on both sides of the front cover 1, and groove-shaped structures are provided on the sides of the elastic arms 11, with protruding limiting parts 13 in the groove-shaped structures; buckle arms 51 are provided on both sides of the front end of the plate end 5, and the plate end 5 and the front cover 1 are assembled and fixed by buckling the limiting parts 13 through the buckle arms 51.

[0029] The inner front end of the latching arm 51 is provided with a chamfered structure, and the front of the limiting part 13 is provided with a beveled surface that matches the chamfered structure. When the plate end 5 is assembled, the chamfered structure of its latching arm 51 passes over the beveled surface of the limiting part 13 and locks the limiting part 13, which facilitates insertion.

[0030] Clamping ribs 15 are provided on both the top and bottom of the slot in the front cover 1. After the plate end 5 is inserted into the slot, each clamping rib 15 clamps the plate end 5, which can increase the clamping force and at the same time prevent the stress of the plate end 5 from being applied to the terminal 4, thus protecting the terminal 4.

[0031] On both sides of the front cover 1, there are also plug arms 12 located inside the elastic arms 11. Both the elastic arms 11 and the plug arms 12 extend backward (i.e. towards the rear cover 2). There is a gap between the plug arms 12 and the elastic arms 11. The rear cover 2 is plugged into and fixed to the front cover 1 from the rear end of the front cover 1. The plug arms 12 and the elastic arms 11 are stuck on both sides of the rear cover.

[0032] like Figure 6 As shown, insertion slots 22 are provided on both sides of the rear cover 2. After the rear cover 2 and the front cover 1 are assembled, the insertion arm 12 is inserted into the insertion slot 22.

[0033] Two protective arms 21 are provided on both sides of the rear cover 2. The two protective arms 21 are located on the upper and lower sides of the insertion slot 22 respectively. After the rear cover 2 and the front cover 1 are assembled, the protective arms 21 block the upper and lower sides of the elastic arm 11, which can protect the elastic arm 11.

[0034] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A puncture-resistant connector for new energy vehicles, comprising a front cover, a rear cover, a protective cover, and terminals, wherein the terminals, the rear cover, and the front cover are assembled and fixed, and the front cover has a slot for assembling a board end, characterized in that: The front end and sides of the cover are configured with openings that can be inserted into the front cover. The top surface of the cover extends forward to form several extensions. Several positioning blocks are provided on the front cover. The extensions are inserted into the gaps between the positioning blocks and assembled and fixed with the front cover. The front end of the bottom of the cover is provided with a downward protruding partition. After the plate end and the bottom surface of the cover are inserted into the slot of the front cover, the partition blocks the plate end and the terminal to form a conductive isolation structure.

2. The puncture-resistant connector for new energy vehicles according to claim 1, characterized in that: The extension includes clamping arms on both sides and several positioning arms in the middle. The sides of the clamping arms have hooks. After the cover is inserted and fixed to the front cover, the positioning blocks are secured by the hooks.

3. The puncture-resistant connector for new energy vehicles according to claim 2, characterized in that: The clamping arm has an inclined surface structure that slopes inward from the outside to form a wedge-shaped structure that is narrow at the front and wide at the back; chamfers are provided on the inner front side of the clamping arm and on both sides of the front end of the positioning arm.

4. The puncture-resistant connector for new energy vehicles according to claim 1, characterized in that: The cover has a U-shaped cross-section, and the front end of the front cover is inserted into the cover through the U-shaped opening of the cover; the entire cover is made of plastic material in one piece.

5. The puncture-resistant connector for new energy vehicles according to claim 1, characterized in that: The front cover has elastic arms on both sides, and the sides of the elastic arms have groove-shaped structures with protruding limiting parts in the groove-shaped structures; the front ends of the plate end have buckle arms on both sides, and the plate end and the front cover are assembled and fixed by buckling the buckle arms with the limiting parts.

6. The puncture-resistant connector for new energy vehicles according to claim 5, characterized in that: The inner side of the front end of the latching arm is set with a chamfered structure, and the front of the limiting part is set with a bevel that matches the chamfered structure. When the plate end is assembled, the chamfered structure of the latching arm passes over the bevel of the limiting part and then locks the limiting part.

7. The puncture-resistant connector for new energy vehicles according to claim 1, characterized in that: Clamping ribs are provided on the top and bottom of the slot in the front cover. After the plate end is inserted into the slot, the clamping ribs clamp the plate end.

8. The puncture-resistant connector for new energy vehicles according to claim 5, characterized in that: Insertion arms are also provided on both sides of the front cover, located inside the elastic arms. Both the elastic arms and the insertion arms extend backward, and there is a gap between the insertion arms and the elastic arms. The rear cover is inserted and fixed to the front cover from the rear end of the front cover, and the insertion arms and elastic arms are locked on both sides of the rear cover.

9. The puncture-resistant connector for new energy vehicles according to claim 8, characterized in that: The back cover has insertion slots on both sides. After the back cover is assembled with the front cover, the insertion arm is inserted into the insertion slot.

10. The puncture-resistant connector for new energy vehicles according to claim 9, characterized in that: Two protective arms are also provided on both sides of the back cover. The two protective arms are located on the upper and lower sides of the insertion slot, respectively. After the back cover and the front cover are assembled, the protective arms block the upper and lower sides of the elastic arm.

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