Female head of high-voltage butt joint plug, male head in butt joint with female head and butt joint plug

Abstract

The utility model relates to the technical field of butt joint plugs, and provides a female joint of a high-voltage butt joint plug, which comprises an outer shell, an inner shell arranged in the outer shell, a cover arranged on the inner shell and connected with the inner shell in a sliding manner, a first spring arranged in the inner shell and generating elastic force to the cover, and two first interfaces arranged on the inner shell, two first through holes are formed in the cover, the first through holes and the first interface of the inner shell are staggered under the action of the first spring, and the cover slides on the inner shell under the action of external force, so that the central axes of the first through holes and the central axis of the first interface coincide or tend to coincide; the utility model also provides a male head in butt joint with the female head and a butt joint plug. The female head of the high-voltage butt joint plug is protected by the cover before the male head is inserted, so that the first interface is prevented from being exposed outside before the male head is inserted, the use safety is improved, the risk of mistakenly touching the first interface does not need to be worried, and the safety performance of the butt joint plug is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of connectors, and more particularly to a female connector of a high-voltage connector, a male connector that mates with it, and a connector plug. Background Technology

[0002] High-voltage connectors are used for connecting high-voltage circuits and are mainly used in vehicles, charging facilities, industrial equipment, medical equipment, etc. High-voltage connectors have male and female plugs. When using them, simply insert the male plug into the female plug. In most cases, the female plug's interface is exposed when the male plug is inserted, which may easily cause injury to the user.

[0003] Therefore, the inventor specifically designed a female connector for a high-voltage connector, a male connector for it, and a connector plug, which led to this invention. Utility Model Content

[0004] This utility model addresses the technical problem by providing a female connector for a high-voltage mating plug, a female connector that mates with the connector, and a mating plug, thereby overcoming at least some of the defects. The technical solution adopted is as follows:

[0005] The female connector of the high voltage docking plug includes an outer shell, an inner shell disposed inside the outer shell, a cover disposed on the inner shell and slidably connected to the inner shell, a first spring disposed inside the inner shell and generating elastic force on the cover, and two first interfaces disposed on the inner shell.

[0006] The cover is provided with two first through holes. Under the action of the first spring, the first through holes of the inner shell are misaligned with the first interface. Under the action of external force, the cover slides on the inner shell so that the central axis of the first through hole coincides with or tends to coincide with the first interface.

[0007] Furthermore, the cover includes a cover portion, connecting portions disposed on both sides of the cover portion and located on both sides of the inner shell, and a snap-fit ​​portion disposed on the inner side of the two connecting portions. The two snap-fit ​​portions are used to make the cover fasten to the inner shell, and two first through holes are disposed on the cover portion.

[0008] Furthermore, a first inclined surface is provided on the connecting part so that an external force is applied to the first inclined surface, pushing the cover to slide on the inner shell.

[0009] Furthermore, the cover also includes a first limiting part for setting a first spring, one end of the first spring is sleeved on the first limiting part, and the other end abuts against the inner side of the inner shell, so that the first spring applies elastic force to the cover.

[0010] Furthermore, the first limiting part is cylindrical and is disposed on the back of the covering part, and the first limiting part is disposed on the back of the covering part by a T-shaped support part, which can provide sufficient support force.

[0011] The inner shell is provided with at least two positioning holes, and the outer shell is provided with positioning pins that mate with the positioning holes. This utility model provides three positioning holes and three positioning pins. After the positioning holes and positioning pins are positioned, the inner shell is ultrasonically welded to the inside of the outer shell, forming a gap between the inner side of the outer shell and the outer side of the inner shell after welding. Before welding, the cover is first fitted onto the inner shell, and the first spring must also be installed in place. The first interface can be directly molded onto the inner shell using an insert injection molding method.

[0012] Furthermore, the female head is also equipped with a foolproof feature.

[0013] Furthermore, the female connector also includes a limiting device for restricting the sliding of the cover; the setting of the limiting device can further improve the safety of the docking plug before docking.

[0014] Furthermore, the limiting device includes a sliding button disposed on the inner housing and slidably connected to the inner housing, and a second spring for generating elastic force on the sliding button.

[0015] Furthermore, the inner housing is provided with a sliding groove for sliding the button, a pushing part is provided above the button for pushing the button to move, and the outer housing is provided with a second through hole for the pushing part to pass through.

[0016] Furthermore, the side wall of the slider is provided with a second limiting part for mounting the second spring. One end of the second spring is sleeved on the second limiting part and abuts against the side wall of the slider, and the other end abuts against the inner side of the inner housing, so that the second spring applies elastic force to the slider.

[0017] This utility model also provides a male connector for mating with a female connector. The male connector includes a main body shell and an extension portion disposed on the main body shell. The extension portion has a push step for pushing and covering inside, and the push step has a second inclined surface for cooperating with a first inclined surface.

[0018] Furthermore, the extension can be embedded between the outer shell and the inner shell, and the pushing step is provided with a second inclined surface for cooperating with the first inclined surface.

[0019] Furthermore, the male connector is also provided with a protrusion that can be embedded in the anti-fooling part to facilitate accurate docking of the male connector and the female connector.

[0020] This utility model also provides a mating plug, including a female plug and a male plug.

[0021] Furthermore, a snap-fit ​​structure is provided between the female connector and the male connector, the snap-fit ​​structure including snap hooks on both sides of the female connector and snap grooves on both sides of the male connector for engaging with the snap hooks.

[0022] Furthermore, the hook includes a horizontal part, a vertical part disposed on the horizontal part, and a hook part located below the vertical part for hooking the slot.

[0023] The female connector of this high-voltage connector is protected by a cover before the male connector is inserted, preventing the first interface from being exposed before the male connector is inserted, thus improving safety. When the male connector is inserted, the cover is pushed by the push step inside the male connector. Therefore, there is no need to worry about the risk of accidentally touching the first interface before or during the connection, which greatly increases the safety performance of the connector. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of it, do not constitute an undue limitation thereof.

[0025] in:

[0026] Figure 1 This is an axial side view of the female connector of the high-voltage docking plug of this utility model;

[0027] Figure 2 This is an exploded view of the female end of the high-voltage connector of this utility model. Figure 1 ;

[0028] Figure 3 This is an exploded view of the female end of the high-voltage connector of this utility model. Figure 2 ;

[0029] Figure 4 This is an axial side view of the cover of this utility model;

[0030] Figure 5 This is a side view of the slide button of this utility model;

[0031] Figure 6 This is an axial side view of the male connector of the high-voltage mating plug of this utility model;

[0032] Figure 7 This is an isometric view of the high-voltage connector of this utility model;

[0033] Figure 8 This utility model Figure 7 A magnified view of a portion of the image.

[0034] Label Explanation:

[0035] 100. Outer shell; 110. Positioning post; 120. Second through hole; 120. Anti-fooling part; 200. Inner shell; 210. Positioning hole; 220. Slide groove; 300. Cover; 310. Cover part; 311. First through hole; 320. Connecting part; 321. First inclined surface; 330. Buckling part; 340. First limiting part; 400. First spring; 500. First interface; 600. Limiting device; 610. Slide button; 611. Pushing part; 612. Second limiting part; 620. Second spring; 700. Main shell; 800. Extension part; 810. Pushing step; 811. Second inclined surface; 820. Protrusion; 900. Snap-fit ​​structure; 910. Hook; 920. Slot. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application. Example 1

[0037] Please see Figures 1 to 5 This is the female connector of the high-voltage connector provided in Embodiment 1 of this utility model. The female connector of the high-voltage connector includes an outer shell 100, an inner shell 200 disposed inside the outer shell 100, a cover 300 disposed on and slidably connected to the inner shell 200, a first spring 400 disposed inside the inner shell 200 and generating elastic force on the cover 300, and two first interfaces 500 disposed on the inner shell 200. The cover 300 is provided with two first through holes 311, and the first through holes 311 of the inner shell 200 connect with the first interfaces 500 under the action of the first spring 400. There is no misalignment. Therefore, before the connection is powered on, the first through hole 311 and the first interface 500 are misaligned. The cover 300 completely covers the two first interfaces 500 to improve safety. Then, under the action of external force, the cover 300 slides on the inner shell 200 so that the central axis of the first through hole 311 and the first interface 500 coincides or tends to coincide. It is only necessary to ensure that the inner diameter of the first through hole 311 is greater than the inner diameter of the first interface 500. After the cover 300 slides to a certain position, the first interface 500 will be completely exposed under the action of the first through hole 311 to facilitate docking.

[0038] Please see Figure 2 , 4The cover 300 includes a cover portion 310, connecting portions 320 disposed on both sides of the cover portion 310 and located on both sides of the inner housing 200, and latching portions 330 disposed inside the two connecting portions 320. The two latching portions 330 are used to fasten the cover 300 to the inner housing 200. Two first through holes 311 are provided on the cover portion 310. The cover 300, which fastens to the inner housing 200, can slide on the inner housing 200. The cover 300 adopts a one-piece structure and is a plastic part, molded from plastic material. Because the cover 300 is made of plastic material, the connecting portions 320 have a certain degree of elasticity so that the latching portions 330 can hook onto the inner housing 200. A first inclined surface 321 is provided on the connecting portion 320 so that external force is applied to the first inclined surface 321 to push the cover 300 to slide on the inner housing 200. The cover 300 also includes a first limiting portion 340 for mounting a first spring 400. One end of the first spring 400 is sleeved on the first limiting portion 340, and the other end abuts against the inner side of the inner housing 200, so that the first spring 400 applies elastic force to the cover 300. The first limiting portion 340 is cylindrical and is disposed on the back side of the cover portion 310. The first limiting portion 340 is disposed on the back side of the cover portion 310 by a T-shaped support portion. The T-shaped support portion can provide sufficient support force.

[0039] Please see Figure 2 , 3 The inner housing 200 is provided with at least two positioning holes 210, and the outer housing 100 is provided with positioning pins 110 that mate with the positioning holes 210. This invention provides three positioning holes 210 and three positioning pins 110. After the positioning holes 210 and positioning pins 110 are positioned, the inner housing 200 is ultrasonically welded to the inside of the outer housing 100. After welding, a gap is formed between the inner side of the outer housing 100 and the outer side of the inner housing 200. Before welding, the cover 300 is first fitted onto the inner housing 200, and the first spring 400 is also installed in place. The first interface 500 can be directly molded onto the inner housing 200 using an insert injection molding method.

[0040] Please see Figure 1 The female connector is also provided with a foolproof part 120. Specifically, the foolproof part 120 is provided on the outer casing 100, and the foolproof part 120 is a groove located on the inner side wall of the outer casing 100.

[0041] Please see Figure 3The female connector also includes a limiting device 600 for restricting the sliding of the cover 300. The limiting device 600 further enhances the safety of the connector before mating. The limiting device 600 includes a sliding button 610 disposed on and slidably connected to the inner housing 200, and a second spring 620 for generating a spring force on the sliding button 610. The inner housing 200 has a sliding groove 220 for sliding the sliding button 610, a pushing part 611 is provided above the sliding button 610 for pushing the sliding button 610 to move, and the outer housing 100 has a second through hole 120 for the pushing part 611 to pass through. The side wall of the slider 610 is provided with a second limiting part 612 for mounting the second spring 620. One end of the second spring 620 is sleeved on the second limiting part 612 and abuts against the side wall of the slider 610, and the other end abuts against the inner side of the inner housing 200, so that the second spring 620 applies elastic force to the slider 610. The second limiting part 612 is cylindrical. The slider 610 is vertically arranged with the cover 300. Under the action of the second spring 620, one end of the slider 610 abuts against the inner side wall of the outer housing 100 to prevent the cover 300 from sliding. When the male head needs to be connected with the female head, the slider 610 is pushed manually first, and then the cover 300 can be pushed to slide during connection so that the first through hole 311 is coaxial with the first interface 500, and the first interface 500 is in a completely exposed state. Example 2

[0042] Please see Figure 6 This is a male connector provided as Embodiment 2 of the present invention, which is used to connect with the female connector in Embodiment 1. The male connector includes a main body shell 700 and an extension 800 disposed on the main body shell 700. The inner side of the extension 800 is provided with a pushing step 810 for pushing the cover 300. The pushing step 810 is provided with a second inclined surface 811 for engaging with the first inclined surface 321. The extension 800 can be embedded between the outer shell 100 and the inner shell 200, and the pushing step 810 is provided with the second inclined surface 811 for engaging with the first inclined surface 321.

[0043] Specifically, when merging the male and female connectors, first manually push the sliding button 610. Then, the extension 800 is inserted between the outer shell 100 and the inner shell 200. Next, the second inclined surface 811 abuts against the first inclined surface 321, and in conjunction with pushing the cover 300, the first through hole 311 coincides with the first interface 500. The first through hole 311 is activated, exposing two first interfaces 500. The connector on the male connector can then be inserted into the first interface 500, achieving a safe connection. The male connector also has a protrusion 820 that can be inserted into the anti-fooling part 120 to facilitate accurate connection between the male and female connectors. Example 3

[0044] Please see Figure 7 ,8 This is a connector provided as Embodiment 3 of the present invention, including the female connector of Embodiment 1 and the male connector of Embodiment 2. A snap-fit ​​structure 900 is provided between the female connector and the male connector. The snap-fit ​​structure 900 includes snap hooks 910 disposed on both sides of the female connector and snap grooves 920 disposed on both sides of the male connector for engaging with the snap hooks 910. The snap hooks 910 include a horizontal part, a vertical part disposed on the horizontal part, and a hook part located below the vertical part for hooking the snap grooves 920.

[0045] In summary, the female connector of this high-voltage connector is protected by a cover before the male connector is inserted, preventing the first interface from being exposed before the male connector is inserted, thus improving safety. When the male connector is inserted, the cover is pushed by the push step inside the male connector. Therefore, there is no need to worry about the risk of accidentally touching the first interface before or during the connection, which greatly increases the safety performance of the connector.

[0046] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0048] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A female connector of a high-voltage mating plug, characterized in that... It includes an outer shell, an inner shell disposed inside the outer shell, a cover disposed on the inner shell and slidably connected to the inner shell, a first spring disposed inside the inner shell and generating elastic force on the cover, and two first interfaces disposed on the inner shell. The cover is provided with two first through holes. Under the action of the first spring, the first through holes of the inner shell are misaligned with the first interface. Under the action of external force, the cover slides on the inner shell so that the central axis of the first through hole coincides with or tends to coincide with the first interface.

2. The female connector of the high-voltage mating plug according to claim 1, characterized in that, The cover includes a cover portion, connecting portions disposed on both sides of the cover portion and located on both sides of the inner shell, and a snap-fit ​​portion disposed on the inner side of the two connecting portions. The two snap-fit ​​portions are used to make the cover fasten to the inner shell, and two first through holes are disposed on the cover portion.

3. The female connector of the high-voltage mating plug according to claim 2, characterized in that, The connecting part is provided with a first inclined surface so that an external force is applied to the first inclined surface, pushing the cover to slide on the inner shell.

4. The female connector of the high-voltage mating plug according to claim 1, characterized in that, The cover also includes a first limiting part for setting a first spring. One end of the first spring is sleeved on the first limiting part, and the other end abuts against the inner side of the inner shell, so that the first spring applies elastic force to the cover.

5. The female connector of the high-voltage mating plug according to claim 1, characterized in that, The female head also includes a limiting device to restrict the sliding of the cover.

6. The female connector of the high-voltage mating plug according to claim 5, characterized in that, The limiting device includes a sliding button disposed on the inner housing and slidably connected to the inner housing, and a second spring for generating elastic force on the sliding button.

7. The female connector of the high-voltage mating plug according to claim 6, characterized in that, The inner housing is provided with a sliding groove for sliding the button, a pushing part is provided above the button for pushing the button to move, and a second through hole is provided on the outer housing for the pushing part to pass through.

8. A male connector for mating with a female connector, used for mating with a female connector as described in any one of claims 1-7, characterized in that, The male head includes a main body shell and an extension disposed on the main body shell. The extension is provided with a push step for pushing and covering, and the push step is provided with a second inclined surface for cooperating with a first inclined surface.

9. A mating plug, characterized in that, It includes the female head as described in any one of claims 1-7 and the male head as described in claim 8.

10. The mating plug according to claim 9, characterized in that, A snap-fit ​​structure is provided between the female connector and the male connector. The snap-fit ​​structure includes hooks on both sides of the female connector and slots on both sides of the male connector for engaging with the hooks.

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