阅读说明：本技术 插头及连接器 (Plug and connector ) 是由 熊燚 黎欢乐 陈雪 陈淼 薛建森 于 2020-06-24 设计创作，主要内容包括：本发明涉及一种插头和连接器。插头包括插头外壳体和设在插头外壳体内的插头内壳体,插头内壳体内设有与外部插座连接的母端子,当插头插入插座时,由于插头外壳体和插头内壳体设有轴向弹性件和径向弹性件,因此插头内部的插头内壳体在轴向方向和径向方向具有较大范围的浮动量,因此即使插头与插座存在少许偏差也能保证有效的插合,从而避免连接端子接触不良或供电对接失败,提高供电的稳定性。(The present invention relates to a plug and a connector. The plug includes the plug shell body and establishes the interior casing of plug in the plug shell body, be equipped with the female terminal of being connected with outside socket in the plug, when the plug inserts the socket, because the interior casing of plug shell body and plug is equipped with axial elastic component and radial elastic component, consequently, the interior casing of plug inside has a more extensive floating volume at axial direction and radial direction, even consequently there is a little deviation in plug and socket and also can guarantee effectual the interpolation and close, thereby avoid connecting terminal contact failure or power supply butt joint failure, improve the stability of power supply.)

1. The utility model provides a plug, include the plug shell body and establish the plug interior casing in the plug shell body, be equipped with the female terminal of being connected with outside socket in the plug interior casing, a serial communication port, thereby the plug shell body is equipped with axial elastic component and radial elastic component with the plug interior casing, at the in-process that plug and outside socket axial were inserted and are closed, thereby the plug interior casing receives axial elastic component and radial elastic component guide to do axial adjustment and the radial adjustment on the position in the plug shell body, so that the female terminal of the plug interior casing aims at the contact pin terminal of outside socket.

2. The plug of claim 1, further comprising an axially movable plate, wherein the axially resilient member urges the plug inner housing horizontally through the axially movable plate to move axially within the plug outer housing.

3. A plug according to claim 1 or 2, wherein the inner cavity of the outer plug housing is provided with axial guide posts which guide the axial movement of the inner plug housing.

4. A plug according to claim 3, wherein the axial resilient member is an axial spring which is received by the axial guide post.

5. A plug according to claim 4, wherein there are four axial guide posts, four being diagonally disposed.

6. A plug according to claim 5, wherein there are four radial resilient members, four of which are diagonally disposed, each of which is connected at one end to the inner housing of the plug and at the other end to the axial guide post.

7. A plug according to claim 1 or 2, wherein a first plug waterproof gasket is provided between the plug inner housing and the front end inner wall of the plug outer housing.

8. The plug of claim 7, further comprising a plug rear cover fixed to the rear outer wall of the plug outer housing, wherein a third plug waterproof pad is disposed between the plug inner housing and the plug rear cover.

9. The plug of claim 8, wherein the first plug flashing pad and the third plug flashing pad each comprise an annular flashing body extending circumferentially outwardly to form an annular flashing skirt with a pleated structure formed therebetween.

10. A connector comprising a plug and a socket which are fitted to each other, wherein the plug is the plug according to any one of claims 1 to 9.

Technical Field

The invention relates to a plug and a connector, which are applicable to the technical field of connectors.

Background

The power supply device of the existing electric vehicle is used in pairs by a socket and a plug, the electric vehicle is powered by a battery pack through the insertion of the plug and the socket, and the stable and close contact of a female terminal of the plug and a contact pin terminal of the socket is a precondition for stably transmitting current.

At present, in the process of axial insertion of a plug and an external socket, the floating amount of a female terminal in the plug is small, and even only the floating of the plug in the axial direction or the radial direction is achieved, when a battery pack has little deviation with a vehicle body, namely the floating design does not meet the working condition of actual battery pack assembly, the plug and the socket can be possibly and effectively inserted and combined when the battery pack is inserted and combined, so that poor contact or power supply butt joint failure of a connecting terminal is caused, the power supply stability is influenced, and even the battery pack is damaged due to the failed insertion and combination.

Disclosure of Invention

The invention aims to provide a plug and a connector capable of improving the inserting and combining success rate.

The invention provides a plug, which comprises a plug outer shell and a plug inner shell arranged in the plug outer shell, wherein a female terminal connected with an external socket is arranged in the plug inner shell, the plug outer shell and the plug inner shell are provided with an axial elastic piece and a radial elastic piece, and in the process of axially inserting and combining the plug and the external socket, the plug inner shell is guided by the axial elastic piece and the radial elastic piece so as to perform axial adjustment and radial adjustment on the position in the plug outer shell to enable the female terminal of the plug inner shell to be aligned with a pin terminal of the external socket.

The plug comprises a plug outer shell and an axial elastic piece, wherein the plug outer shell is provided with a plug inner shell, the plug inner shell is arranged in the plug outer shell, and the axial elastic piece horizontally pushes the plug inner shell to move axially through the axial movable plate.

Wherein, plug shell body inner chamber is equipped with axial guide post, and axial guide post guides the axial displacement of shell body in the plug.

Wherein, the axial elastic component is an axial spring which is sleeved on the axial guide post.

The number of the axial guide columns is four, and the four axial guide columns are arranged diagonally.

The radial elastic pieces are four in number, the four radial elastic pieces are arranged diagonally, one end of each radial elastic piece is connected with the inner shell of the plug, and the other end of each radial elastic piece is connected with the axial guide post.

Wherein, be equipped with the waterproof pad of first plug between the front end inner wall of plug inner casing and plug shell body.

Wherein, still including fixing the rear end outer wall plug rear cover at the plug shell body, be equipped with the waterproof pad of third plug between plug inner housing body and the plug rear cover.

The first plug waterproof pad and the third plug waterproof pad comprise annular waterproof main bodies, the annular waterproof main bodies extend outwards in the circumferential direction to form annular waterproof skirt edges, and pleat structures are formed between the annular waterproof main bodies and the annular waterproof skirt edges.

The invention also provides a connector, which comprises a plug and a socket which are mutually inserted, wherein the plug is the plug.

The invention has the beneficial effects that: when the plug is inserted into the socket, because the plug outer shell and the plug inner shell are provided with the axial elastic piece and the radial elastic piece, the plug inner shell inside the plug has a large-range floating amount in the axial direction and the radial direction, and therefore, even if a small deviation exists between the plug and the socket, effective insertion and combination can be guaranteed, poor contact of a connecting terminal or power supply butt joint failure is avoided, and power supply stability is improved.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic view of the structure of the plug of the present invention.

Figure 2 is a right side schematic view of the plug of the present invention.

Fig. 3 is an exploded view of the plug of the present invention.

Fig. 4 is a schematic structural view of the socket of the present invention.

Fig. 5 is a right side schematic view of the inventive jack.

Fig. 6 is an exploded view of the socket of the present invention.

Fig. 7 is a left side view of the plug of the present invention inserted into a receptacle.

Fig. 8 is a front view of the plug of the present invention when inserted into a receptacle.

Fig. 9 is a cross-sectional view taken along line a-a of fig. 8.

Fig. 10 is a cross-sectional view taken along line B-B of fig. 8.

Fig. 11 is a cross-sectional view taken along line C-C of fig. 8.

Fig. 12 is a cross-sectional view taken along line E-E of fig. 8.

Fig. 13 is a sectional view taken along line H-H in fig. 8.

Fig. 14 is a sectional view taken along line I-I in fig. 8.

The figure includes: 1-plug, 11-plug outer shell, 111-axial guide column, 112-axial spring, 113-radial spring, 1141-power female terminal, 1142-signal female terminal, 1143-ground female terminal, 1151-power terminal sealing ring, 1152-signal terminal sealing ring, 12-plug inner shell, 131-plug front rubber core, 132-plug rear rubber core, 141-first plug waterproof pad, 1411-annular waterproof body, 1412-annular waterproof skirt, 1413-pleated structure, 142-second plug waterproof pad, 143-third plug waterproof pad, 151-first pressing plate, 152-second pressing plate, 153-third pressing plate, 16-axial movable plate, 17-plug rear cover, 171-plug cover plate, 172-cover plate sealing ring, 173-plug tail rubber core, 174-shielding claw, 175-shielding press-connecting ring, 176-waterproof bolt, 177-plug tail cover, 178-signal connector socket, 18-plug face cover, 2-socket, 21-socket shell, 22-socket rubber core, 23-socket sealing gasket, 24-socket sealing ring, 251-power pin terminal, 252-grounding pin terminal, 253-signal pin terminal, 26-socket rear cover, 271-power terminal sealing ring, 272-signal terminal sealing ring, 273-grounding terminal sealing ring, 28-socket rubber core sealing ring.

Detailed Description

The invention is further described with reference to the following examples.

The connector comprises a socket 2 and a plug 1. As shown in fig. 4 to 6, the socket 2 includes a socket housing 21, a socket core 22, pin terminals including a power pin terminal 251, a ground pin terminal 252, and a signal pin terminal 253, and a socket rear cover 26. The pin terminal is sleeved in the socket rubber core 22, the socket rubber core 22 is sleeved in the socket shell 21, the front end face of the socket shell 21 is provided with a socket sealing gasket 23 and a socket sealing ring 24, the tail end of the pin terminal is sleeved with a terminal sealing ring, the terminal sealing ring comprises a power terminal sealing ring 271, a signal terminal sealing ring 272 and a grounding terminal sealing ring 273, and the pin terminal and the socket rubber core 22 are sealed in a waterproof mode through the terminal sealing ring. The rear socket cover 26 covers the rear end of the socket rubber core 22, and a socket rubber core sealing ring 28 is arranged between the outer surface of the socket rubber core 22 and the inner wall of the rear socket cover 26 to realize waterproof sealing. Socket 2 satisfies IP67 waterproof under the independent state is closed in the non-plug, has effectively guaranteed socket 2 not damaged under adverse circumstances, and the product is more reliable.

As shown in fig. 1 to 3, the plug 1 includes a plug outer housing 11, a plug inner housing 12, a plug rubber core, a female terminal and a plug rear cover 17, wherein the female terminal includes a signal female terminal 1142, a ground female terminal 1143 and a power female terminal 1141. The female terminal is sleeved in the plug rubber core, the plug rubber core is sleeved in the plug inner shell 12, and the plug inner shell 12 is arranged in the plug outer shell 11. The plug rubber core comprises a plug front rubber core 131 and a plug rear rubber core 132 which are connected, and a second plug waterproof pad 142 is arranged between the plug inner shell 12 and the plug front rubber core 131 to realize waterproof sealing, so that independent waterproof of functional components of the plug inner shell 12 is ensured. The tail end cover of female terminal is equipped with the terminal sealing washer, and this terminal sealing washer includes power terminal sealing washer 1151 and signal terminal sealing washer 1152, glues core 132's waterproof sealing behind female terminal and the plug through the terminal sealing washer realization. Under the non-plug-in independent state, the plug 1 meets the requirement of IP67 water resistance, the plug 1 is effectively prevented from being damaged in severe environment, and the product is more reliable.

As shown in fig. 1 to 14, the plug face cover 18 covers the front end face of the plug outer housing 11, and the front end portion of the plug front rubber core 131 protrudes from the opening of the plug face cover 18. The plug inner housing 12 is axially movably adjustable in position within the plug outer housing 11. Specifically, the top surface and the bottom surface of the outer surface of the plug front rubber core 131 extend outward to form two blocking columns respectively, the outer surface of the plug inner housing 12 is sleeved with an axial movable plate 16, and the axial movable plate 16 is located between the four blocking columns and the inner wall of the rear end of the plug outer housing 11. In order to prevent the plug inner housing 12 from moving in the axial direction when moving in the plug outer housing 11, the four corners of the inner cavity of the plug outer housing 11 are respectively provided with an axial guide post 111, the axial guide post 111 is arranged between the inner wall of the rear end of the plug outer housing 11 and the plug face cover 18, the four axial guide posts 111 respectively penetrate through the four corner holes of the axial movable plate 16, each axial guide post 111 is sleeved with an axial spring 112, one end of the axial spring 112 abuts against the inner wall of the rear end of the plug outer housing 11, the other end abuts against the axial movable plate 16, and the axial movable plate 16 pushes the blocking post of the plug inner housing 12 by the elastic force of the axial spring 112, so that the blocking post abuts against the rear wall of the plug face cover 18. The four axial springs 112 at four corners abut against the axial movable plate 16 to push the plug inner housing 12 to complete axial floating and resetting, and the axial guide posts 111 limit the moving direction of the axial springs 112, so that the axial springs 112 do not deflect beyond the axial direction. Radial springs 113 which are in a stretching state at all times are connected between the four outer corners of the plug inner housing 12 and the nearest axial guide columns 111, two ends of the four radial springs 113 at the four corners respectively pull the axial guide columns 111 and the rivet pressing columns on the plug inner housing 12, and the radial springs 113 are pulled in the diagonal direction to realize the floating and resetting in the radial direction. When the plug 1 is inserted into the socket, because the plug outer housing 11 and the plug inner housing 12 are provided with the axial spring 112 and the radial spring 113, the plug inner housing 12 inside the plug has a large floating amount in the axial direction and the radial direction, so that effective insertion can be ensured even if the plug 1 and the socket 2 have a little deviation, thereby avoiding poor contact of connecting terminals or power supply butt joint failure, and improving the stability of power supply.

The plug rear cover 17 is connected to the outer wall of the rear end of the plug outer housing 11, and the plug rear cover 17 covers the plug rear rubber core 132. In order to improve the waterproof effect, a first plug waterproof pad 141 is disposed between the plug inner housing 12 and the front end inner wall of the plug outer housing 11, and a third plug waterproof pad 143 is disposed between the plug inner housing 12 and the plug rear cover 17. Each of the first and third plug waterproof pads 141, 143 includes an annular waterproof body 1411, the annular waterproof body 1411 extends circumferentially outward to form an annular waterproof skirt 1412, and a pleat structure 1413 is formed between the annular waterproof body 1411 and the annular waterproof skirt 1412. When assembling, the first pressing plate 151 and the second pressing plate 152 are used to press and fix the annular waterproof body 1411 and the annular waterproof skirt 1412 of the first plug waterproof pad 141 to the plug inner housing 12 and the plug outer housing 11, respectively; the annular waterproof body 1411 and the annular waterproof skirt 1412 of the third plug waterproof pad 143 are respectively pressed and fixed on the plug outer housing 11 and the plug rear cover 17 by the third pressing plate 153 and the screws; when the plug inner housing 12 floats, the pleated structures 1413 of the first plug waterproof pad 141 and the third plug waterproof pad 143 ensure effective waterproofing between the plug outer housing 11 and the plug inner housing 12 by extension or compression, so that the occurrence of mechanical failure and electrical failure caused by corrosion or sand and sand entering is avoided, and the electrical safety is ensured. A signal connector receptacle 178 is provided in the plug rear cover 17. The rear end of the plug rear rubber core 132 is vertically connected with a plug rear rubber core 173, the lower end of the plug rear rubber core 173 is sequentially provided with a shielding claw 174, a shielding pressure-connecting ring 175 and a waterproof bolt 176, and the shielding claw 174, the shielding pressure-connecting ring 175 and the waterproof bolt 176 are covered by a plug rear cover 177. The plug cover plate 171 is provided on the rear side wall of the plug rear cover 17, and a cover seal ring 172 is provided between the plug cover plate 171 and the plug rear cover 17 to achieve waterproof sealing. The plug 1 of this application has not only strengthened the waterproof of electric part, has still strengthened mechanical floating mechanism's protection simultaneously, has ensured mechanical floating mechanism's reliability.

All above-mentioned female terminals all adopt the structure of torsional spring, and area of contact is big, the temperature rise is low, the current-carrying is stable, long service life, accords with the demand that trades the plug of terminal high frequency time when trading the electricity. The terminal adopts the mode overall arrangement of 2PIN (power female terminal 1141) +20PIN (signal female terminal 1142) +1PIN (ground female terminal 1143), and overall structure designs compactly, realizes more functions in littleer space.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.