阅读说明：本技术 一种浮动式充电插座及充电连接器 (Floating type charging socket and charging connector ) 是由 李晓晓 于 2021-07-19 设计创作，主要内容包括：本发明公开了一种浮动式充电插座,包括：具有安装腔的下壳体和封装在下壳体上端面的上盖,下壳体的安装腔内置有弹性底座和主壳体；弹性底座能够相对下壳体上下弹性运动；弹性底座上开设有第一孔,主壳体的下端置于弹性底座的第一孔内,上盖上开设有第二孔,主壳体的上端穿过上盖上第二孔突出上盖的端面；弹性底座的上端面沿第一孔边缘处开设有第二钢珠槽,第二钢珠槽内盛装有若干个钢珠,主壳体的下端面上与第二钢珠槽内钢珠接触的表面设为向下突出的第一球面。本发明用球面滚动驱动实现最大幅度自由浮动；仅通过一组压簧实现X/Y/Z方向的移动,零件减少,安装简单；机构安装拆卸简单,便于维护。(The invention discloses a floating type charging socket, which comprises: the device comprises a lower shell with a mounting cavity and an upper cover packaged on the upper end surface of the lower shell, wherein an elastic base and a main shell are arranged in the mounting cavity of the lower shell; the elastic base can elastically move up and down relative to the lower shell; the elastic base is provided with a first hole, the lower end of the main shell is arranged in the first hole of the elastic base, the upper cover is provided with a second hole, and the upper end of the main shell penetrates through the second hole on the upper cover and protrudes out of the end surface of the upper cover; the upper end face of the elastic base is provided with a second steel ball groove along the edge of the first hole, a plurality of steel balls are contained in the second steel ball groove, and the surface of the lower end face of the main shell, which is in contact with the steel balls in the second steel ball groove, is set to be a first spherical surface protruding downwards. The invention realizes the maximum amplitude free floating by using the spherical rolling drive; the movement in the X/Y/Z direction is realized only through a group of pressure springs, so that the number of parts is reduced, and the installation is simple; the mechanism is simple to mount and dismount and convenient to maintain.)

1. A floating charging receptacle, comprising: the charging device comprises a lower shell with a mounting cavity and an upper cover packaged on the upper end surface of the lower shell, wherein an elastic base and a main shell with a charging jack are arranged in the mounting cavity of the lower shell;

the elastic base can elastically move up and down relative to the lower shell;

the upper end of the main shell penetrates through the second hole on the upper cover to protrude out of the end surface of the upper cover, so that the charging jack at the upper end of the main shell is exposed to be inserted with a charging plug for charging;

a second steel ball groove is formed in the upper end face of the elastic base along the edge of the first hole, a plurality of steel balls are contained in the second steel ball groove and can freely rotate in the second steel ball groove, and the surface, which is in contact with the steel balls in the second steel ball groove, on the lower end face of the main shell is provided with a first spherical surface protruding downwards; the main shell can freely rotate along the contact surface through the spherical rolling drive of the first spherical surface and the steel ball.

2. A floating charging socket as claimed in claim 1, wherein a spring is mounted between the resilient base and the bottom plate of the lower housing.

3. A floating charging socket as claimed in claim 2, wherein the bottom plate of the lower housing has a plurality of first spring seats, the bottom surface of the spring base has a plurality of second spring seats, the number and position of the second spring seats are the same as the first spring seats, and the first spring seats on the lower housing and the second spring seats on the spring base are matched to fixedly mount the springs.

4. The floating charging receptacle of claim 1, wherein the mounting cavity of the lower housing has a plurality of posts for limiting horizontal movement of the flexible base.

5. A floating charging socket as claimed in claim 4, wherein the number of the defining posts is eight, and each two defining posts are in a group located at the four corners of the spring base.

6. The floating type charging socket as claimed in claim 4, wherein a first steel ball groove is formed in a surface of each limiting column facing the sliding surface of the spring base along the Z direction, a plurality of steel balls are contained in the first steel ball groove, and the steel balls can freely rotate in the first steel ball groove.

7. The floating type charging socket as claimed in claim 1, wherein a plurality of third steel ball grooves are formed in a lower end surface of the upper cover contacting the main housing, a plurality of steel balls are contained in the third steel ball grooves, the steel balls can freely rotate in the third steel ball grooves, a recessed smooth second spherical surface is arranged on an end surface of the main housing contacting the steel balls in the third steel ball grooves, and the steel balls on the upper cover contact the second spherical surface on the main housing.

8. A charging connector comprising a mating plug and socket, characterised in that the socket is a floating charging socket as claimed in any one of claims 1 to 7.

Technical Field

The invention belongs to the technical field of charging connectors, and particularly relates to a floating type charging socket and a charging connector comprising the floating type charging socket.

Background

The existing connector is divided into a fixed type and a floating type according to a fixed form, and the fixed type and the floating type are specifically understood as follows: the plug and the socket of the fixed finger connector are in a fixed form and cannot shake after being plugged; the floating type is that the plug or the socket is provided with a floating mechanism, namely, the connecting body is in a movable state, and the floating end is passively adjusted to the matching position of the fixed end to complete matching when the plug or the socket is plugged. The fixed type is more common, and the floating type is mainly applied to replacing interfaces of battery packs of electric vehicles or similar scenes at present. The connector belongs to a novel product, the types of the existing products are few, the floating form is single, and the floating mechanism is mainly formed by combining a tension spring and a pressure spring. The disadvantages of this mechanism are:

1) because the number of the springs is large, each spring needs an independent fixing mechanism, the number of parts is large, and the assembly is complex;

2) the tension spring and the pressure spring both belong to linear springs, and the floating mechanism is limited to a certain extent in the acting force movement direction of the springs and cannot float freely in the complete sense;

3) too many springs are very complicated when being maintained and disassembled, and a large number of parts need to be disassembled when any spring is damaged.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a floating type charging socket which realizes maximum free floating by spherical rolling drive.

In order to solve the above technical problem, the present invention provides a floating type charging socket, including: the charging device comprises a lower shell with a mounting cavity and an upper cover packaged on the upper end surface of the lower shell, wherein an elastic base and a main shell with a charging jack are arranged in the mounting cavity of the lower shell;

the elastic base can elastically move along the Z axis relative to the lower shell;

the upper end of the main shell penetrates through the second hole on the upper cover to protrude out of the end surface of the upper cover, so that the charging jack at the upper end of the main shell is exposed to be inserted with a charging plug for charging;

the upper end face of the elastic base is provided with a second steel ball groove along the edge of the first hole, a plurality of steel balls are contained in the second steel ball groove, the steel balls can freely rotate in the second steel ball groove, the surface of the lower end face of the main shell body, which is in contact with the steel balls in the second steel ball groove, is a first spherical surface protruding downwards, and the main shell body can freely rotate along the contact surface through the spherical rolling drive of the first spherical surface and the steel balls.

Optionally, a spring is installed between the elastic base and the bottom plate of the lower shell.

Optionally, a plurality of first spring seats are arranged on the bottom plate of the lower housing, second spring seats are arranged on the lower end face of the spring base, the number of the second spring seats is the same as that of the first spring seats, the positions of the second spring seats correspond to those of the first spring seats one by one, and the first spring seats on the lower housing are matched with the second spring seats on the spring base to fixedly mount the springs.

Optionally, a plurality of limiting columns for limiting the horizontal movement of the elastic base are arranged in the installation cavity of the lower shell.

Optionally, the number of the limiting columns is eight, and every two limiting columns are a group and are respectively located at four top corners of the spring base.

Optionally, a first steel ball groove is formed in the surface, facing the sliding surface on the spring base, of each limiting column in the Z direction, a plurality of steel balls are contained in the first steel ball grooves, and the steel balls can freely rotate in the first steel ball grooves.

Optionally, a steel ball fixing ring is arranged on the second steel ball groove and used for fixing the steel ball in the second steel ball groove.

Optionally, be provided with a plurality of third steel ball groove on the lower terminal surface that covers with main casing body contact, a plurality of steel ball is equipped with in the third steel ball inslot splendid attire, the steel ball can be at third steel ball inslot free rotation, be provided with the slick and sly second sphere of concave yield on the main casing body with the terminal surface of third steel ball inslot steel ball contact, steel ball on the upper cover with the second sphere contact on the main casing body.

Optionally, a steel ball fixing sleeve is arranged on the third steel ball groove and used for fixing a steel ball in the third steel ball groove.

Correspondingly, the invention also provides a charging connector which comprises a plug and a socket which are matched, wherein the socket is the floating type charging socket.

Compared with the prior art, the invention has the following beneficial effects: the invention uses spherical rolling drive to replace the linear drive of the tension spring, thus realizing the maximum amplitude free floating; the movement in the X/Y/Z direction is realized only through a group of pressure springs, so that the number of parts is reduced, and the installation is simple; the mechanism is simple to mount and dismount and convenient to maintain.

Drawings

Fig. 1 is an exploded view of a charging receptacle of the present invention;

fig. 2 is a schematic view of the overall structure of the charging socket;

FIG. 3 is a schematic structural view of the lower case;

FIG. 4 is a schematic view of the construction of the spring mount;

FIG. 5 is a schematic structural view of a steel ball groove on a spring base;

FIG. 6 is a schematic view of the spring mount and lower housing assembled together;

FIG. 7 is a top schematic view of the spring mount assembled to the lower housing;

FIG. 8 is a schematic view of the direction of movement of the spring mount;

FIG. 9 is a schematic structural view of the main housing;

FIG. 10 is a schematic structural view of the upper cover;

FIG. 11 is a schematic view of the mounting of the upper cover to the lower housing;

FIG. 12 is a schematic view of XY coordinate directions;

FIG. 13 is a schematic view of the Z coordinate direction;

FIG. 14 is a schematic view showing the moving direction in the XY direction adjustment by an external force;

fig. 15 is a schematic view of the moving direction at the time of reset in fig. 14.

Reference numerals:

1. a screw;

2. an upper cover 201, a third steel ball groove 202 and a second screw hole;

3. steel balls;

4. fixing a steel ball sleeve;

5. a main housing 501, a first spherical surface 502 and a second spherical surface;

6. a steel ball fixing ring;

7. the spring seat comprises a spring base 701, a second steel ball groove 702 and a second spring seat;

8. a spring;

9. lower casing, 901, limit post, 902, first steel ball groove, 903, first spring holder, 904, first screw hole.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present patent application, it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In the description of the present patent, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present patent application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present patent can be understood in a specific case by those skilled in the art.

The invention discloses a floating type charging socket, which is shown in figures 1-15 and comprises a lower shell 9, an elastic base 7, a main shell 5 and an upper cover 2; the main housing 5 has a charging jack, which is a core component of the existing charging socket. The charging socket is formed by sequentially mounting the components from bottom to top, an exploded view of the charging socket is shown in fig. 1, an overall assembled view is shown in fig. 2, for describing the orientation in detail, a coordinate system is established by the assembled charging socket, as shown in fig. 12-13, in a top view, a vertical row-by-row connecting line direction of charging holes in the charging socket is a Y axis, a horizontal row-by-row connecting line direction is an X axis, and in a front view, a vertical direction of the charging socket is a Z axis.

The connection of the components is described in detail below.

The structure of the lower shell 9 is shown in fig. 3, the lower shell 9 is a hollow shell type structure with an open upper end, a mounting cavity is arranged in the lower shell 9, the structure of the elastic base 7 is shown in fig. 4 and 5, the elastic base 7 is a quadrilateral plate-shaped structure, the elastic base 7 is arranged in the mounting cavity of the lower shell 9, and the elastic base 7 can elastically move along the Z axis (relative to the upper and lower direction of the lower shell) relative to the lower shell 9. This elastic movement is achieved by mounting a spring 8 between the elastic seat 7 and the bottom plate of the lower housing 9, the solution being shown in fig. 6. A plurality of first spring seats 903 are arranged on the bottom plate of the lower shell 9, second spring seats 702 are arranged on the lower end face of the spring base 7, and the second spring seats 702 are the same in number and correspond to the first spring seats 903 in position one to one. For the purpose of stable movement of the spring base 7, in the present embodiment, 4 first spring seats 903 and 4 second spring seats 702 are provided, the 4 second spring seats 702 are respectively located at four vertex angles of the spring base 7, and the first spring seat 903 on the lower casing 9 is matched with the second spring seat 702 on the spring base 7 to fixedly mount the spring 8.

Referring to fig. 6-8, in order to achieve the movement of the elastic base 7 only along the Z-axis direction and to limit the movement of the elastic base 7 in the horizontal direction in the installation cavity, a plurality of limiting columns 901 for limiting the movement of the elastic base 7 in the horizontal direction are disposed in the installation cavity of the lower housing 9, and in order to achieve a better limiting effect, eight limiting columns 901 are disposed in this embodiment, and every two limiting columns 901 are in a group and are respectively located at four top corners of the spring base 7. The surface of the elastic base, which is in contact with the limiting columns, is defined as a sliding surface, in order to improve the fluency between the sliding surface and the limiting columns 901 when the spring base 7 moves in the vertical direction, a first steel ball groove 902 is formed in the surface, which is opposite to the sliding surface on the spring base 7, of each limiting column 901 along the Z axis, a plurality of steel balls 3 are contained in the first steel ball grooves 902, and the steel balls 3 can freely rotate in the first steel ball grooves 902 and play an auxiliary role in the movement of the spring base 7 in the vertical direction.

The structure of the elastic base 7 is shown in fig. 4 and 5, the structure of the main housing 5 is shown in fig. 9, a circular hole is formed in the middle of the elastic base 7, the hole is called a first hole for distinguishing each hole, and the lower end of the main housing 5 is placed in the first hole of the elastic base 7. In order to achieve XY plane movement of the main housing 5, so that the main housing 5 can rotate freely at the junction of the resilient base 7 and the main housing 5, a second steel ball groove 701 is arranged on the upper end surface of the elastic base 7 along the edge of the first hole, the structure of the second steel ball groove 701 is shown in figure 5, a plurality of steel balls 3 are contained in the second steel ball groove 701, the steel balls 3 can rotate freely in the second steel ball groove 701, the surface of the lower end surface of the main shell 5, which is in contact with the steel balls in the second steel ball groove, is a smooth first spherical surface 501 protruding downwards, as shown in fig. 9, when the main shell 5 is assembled with the elastic base 7, the first spherical surface 501 is in contact fit with the steel balls 3 in the second steel ball groove 701, namely, the spherical surface rolls to drive the displacement movement of the main shell 5, so that the main shell 5 can freely rotate in the X/Y/Z direction along the contact surface of the steel ball and the first spherical surface in the elastic base 7.

Preferably, a steel ball fixing ring 6 is arranged on the second steel ball groove for fixing the steel ball 3 in the second steel ball groove 701, i.e. the steel ball 3 is limited in the second steel ball groove 701, so as to prevent the steel ball from separating from the second steel ball groove 701.

The structure of the upper cover 2 is shown in fig. 10, a second hole is formed in the middle of the upper cover 2, when the upper cover 2 is mounted on the upper end face of the lower casing 9, the upper end of the main casing 5 penetrates through the second hole of the upper cover 2 and protrudes out of the end face of the upper cover 2, so that a plug is inserted into a charging jack at the upper end of the main casing 5 for charging. When the upper cover 2 is assembled to the lower housing 9, referring to fig. 11, a plurality of second screw holes 202 are provided on the upper cover 2, a plurality of first screw holes 904 corresponding to the second screw holes 202 are provided on the lower housing 9, and the upper cover 2 and the lower housing 9 are fixed by screws 1 passing through the second screw holes 202 and the first screw holes 904.

In order to reduce the friction between the main casing 5 and the upper cover 2 during displacement, referring to fig. 10, a plurality of third steel ball grooves 201 are arranged on the lower end surface of the upper cover 2 contacting with the main casing 5, a plurality of steel balls 3 are contained in the third steel ball grooves 201, and the steel balls 3 can freely rotate in the third steel ball grooves 201. In this embodiment, 4 third steel bead grooves 201 are provided, and are respectively located at four corners of the upper cover. The main casing 5 is provided with the second sphere 502 of recessed rounding and rounding on the terminal surface with the contact of steel ball in the third steel ball groove 201, steel ball 3 on the upper cover 2 with the contact of second sphere 502 on the main casing 5, when the main casing 5 removed under the exogenic action, steel ball 3 slided along this second sphere 502 in the third steel ball groove 201, and second sphere 502 was in on the main casing 5 as supplementary reduction frictional force during the main casing displacement to supplementary when reseing the main casing returns central point.

Preferably, a steel ball fixing sleeve 4 is arranged on the third steel ball groove 201 for fixing the steel ball 3 in the third steel ball groove 201, i.e. the steel ball 3 is limited in the third steel ball groove 201, so as to prevent the steel ball from separating from the third steel ball groove 201.

The charging socket can perform floating adjustment in the X/Y/Z direction under the action of external force, and can reset under the action of the spring after the external force is removed.

The specific floating process of the charging socket is as follows: when the Z-direction adjustment is carried out, the main shell 5 moves downwards under the action of downward external force, acts on the spring 8 directly through the spring base 7, the spring 8 is compressed downwards, the main shell 5 moves downwards, and when the external force is removed, the main shell 5 can directly move upwards to reset; when the X/Y direction adjustment is performed, the main housing 5 generates horizontal displacement under the action of external force, the first spherical surface 501 acts on the steel balls 3 on the spring base 7 and pushes the spring base 7 to displace, and the spring base 7 can only displace along the Z direction under the limitation of the lower housing 9, so when the main housing 5 displaces in the X/Y direction, as shown in fig. 14, the spring base 7 is pushed to perform Z direction displacement and compress the spring 8, the main housing 5 moves downward, and when the external force is removed, as shown in fig. 15, the spring base 7 rebounds and pushes the main housing 5 to reset; the second spherical surface 502 on the main housing 5 serves as an auxiliary to reduce friction when the main housing 5 is displaced and to assist the main housing 5 to return to the center position when it is reset. The driving generated by the displacement of the main housing 5 is completed by the cooperation of the first spherical surface 501 and the steel ball 3, so that the main housing 5 can also perform the rotation motion in the X/Y/Z direction.

In conclusion, the spherical rolling drive is used for replacing the linear drive of the tension spring, so that the maximum amplitude free floating is realized; a tension spring mechanism of the existing floating mechanism is cancelled, and the movement in the X/Y/Z direction is realized only through a group of compression springs, so that the number of parts is reduced, and the installation is simple; the mechanism is simple to mount and dismount and convenient to maintain.

Correspondingly, the charging connector comprises a plug and a socket which are matched, and the socket is the floating type charging socket.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.