CN216312100U - Connector for connecting light bars and stacked connector assembly - Google Patents

Abstract

The utility model relates to a connector for connecting light bars and a stacked connector assembly. The connector includes a columnar main body (20), and an upper PCBA board (21) and a lower PCBA board (22) provided inside the main body (20). The side face of the main body (20) is provided with a plurality of lamp strip connecting windows (201) in different directions and used for receiving end connecting pieces (11) of the lamp strips (1). An upper expansion interface (213) is provided on the upper surface of the upper PCBA board (21) for establishing electrical connection with the lower expansion joint (311) of the stacked connector (3). The lower surface of the lower PCBA board (22) is provided with a lower expansion interface (221) for establishing electrical connection with an upper expansion joint (301) of the stacked connector (3). The connector can be detachably connected with a plurality of light bars at the same time, so that the plurality of light bars can be conveniently connected together to form patterns with different shapes.

Description

Connector for connecting light bars and stacked connector assembly

Technical Field

The utility model relates to the field of lamps, in particular to a connector for connecting light bars and a superposed connector assembly.

Background

The light bar is named due to the shape thereof and is a strip-shaped light-emitting device. In recent years, with the development of LED technology, light bars are widely used in the field of space lighting or decoration. The interior of the light bar generally includes a plurality of LED beads arranged along the length of the light bar. Light emitted by the LED lamp beads irradiates the diffusion sheet, so that the light is uniformly diffused outwards, and the irradiation range of the lamp strip is enlarged.

Since the size of the light bar product is fixed, when a large space needs to be illuminated or decorated, a plurality of light bars need to be used simultaneously. In the prior art, the light bars are generally combined together in an end-to-end splicing manner so as to be expanded in the length direction. The technical scheme that a plurality of light bars are connected through connecting pieces also exists in the prior art. The connector has two forms. The first form of connector is a linear connector that can be connected between two light bars so that the two light bars are in the same line. The second form of connector is an L-shaped connector that can be connected between two light bars so that the two light bars form an L-shape. Through using linear type connecting piece and right angle type connecting piece to connect, can constitute the shape of straight line or L shape with a plurality of lamp strips.

The light bar connection mode in the prior art is mainly applied to the illumination of walls (such as skirting lines) or furniture (such as cabinets), and cannot provide various connection modes, so that the light bars can be combined into a single shape. In addition, the light bar connector in the prior art can only provide power to the light bars to enable the light bars to emit light, and can not independently control each light bar.

Therefore, it is desirable to provide a light bar connector capable of implementing a plurality of connection modes and independently controlling light bars.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a connector for connecting light bars, so as to solve the above technical problems.

The technical scheme of the utility model is as follows:

the utility model provides a connector for connecting lamp strip, including being cylindrical main part and setting up at inside last PCBA board and the lower PCBA board of main part, be equipped with the lamp strip connection window of a plurality of different orientations on the side of main part for the end connection spare of receiving the lamp strip, be equipped with expansion interface on going up the PCBA board upper surface, be used for establishing the electricity with the lower expansion joint of superpose connecting piece and be connected, be equipped with expansion interface down on the lower surface of lower PCBA board, be used for establishing the electricity with the last expansion joint of superpose connecting piece and connect.

According to a preferred embodiment of the present invention, the upper PCBA plate is provided with an upper through hole, the main body is provided with an upper snap member below the upper through hole for snap-fit connection with the lower extension snap of the stacked connector, the lower PCBA plate is provided with a lower through hole, and the main body is provided with a lower snap member above the lower through hole for snap-fit connection with the upper extension snap of the stacked connector.

According to a preferred embodiment of the utility model, the lower retainer comprises a plurality of clamping tongues which are distributed annularly and are spaced from each other.

According to a preferred embodiment of the present invention, the upper expansion interface and the lower expansion interface respectively include three pads for power connection, ground connection, and control signal connection.

According to a preferred embodiment of the present invention, a light bar electrical connection interface is disposed on the upper surface of the upper PCBA board, and when the end connector of the light bar is inserted into the light bar connection window, the main body can be mechanically connected to the end connector of the light bar, and the light bar electrical connection interface can be electrically connected to the end connector of the light bar.

According to a preferred embodiment of the present invention, the main body has a regular prism shape, and the light bar attachment window is provided at an upper end portion of a side surface of the main body.

According to a preferred embodiment of the present invention, the body has a regular triangular prism shape, a regular quadrangular prism shape, or a regular hexagonal prism shape.

According to a preferred embodiment of the present invention, the upper end portion of the main body includes a plurality of partition walls extending from the side prisms of the main body toward the inside of the main body, so that when the end connector of the light bar is inserted into the light bar connection window, the end connector establishes a mechanical connection with the partition walls at both sides thereof.

According to a preferred embodiment of the present invention, each of the partition walls is provided with a fixing groove, so that when the end connector of the light bar is inserted into the light bar connection window, the light bar snaps at both sides of the end connector are respectively fitted into the fixing grooves of the partition wall to form the mechanical connection.

A superposed connection for connecting two connectors as described above, referred to as a first connector and a second connector, comprising an upper expansion joint and a lower expansion joint projecting in opposite directions, the upper expansion joint being intended to establish an electrical connection with a lower expansion interface of the first connector mounted above the superposed connection, the lower expansion joint being intended to establish an electrical connection with an upper expansion interface of the second connector mounted below the superposed connection.

According to a preferred embodiment of the present invention, the upper and lower expansion joints each include three pogo pins.

According to a preferred embodiment of the present invention, the stacking connector further comprises an upper extension buckle and a lower extension buckle extending in opposite directions, the upper extension buckle is used for being in tabling connection with the lower retainer of the first connector, and the lower extension buckle is used for being in tabling connection with the upper retainer of the second connector.

According to a preferred embodiment of the utility model, said upper expansion catch is cylindrical and the upper end comprises a crown catch.

A stacking connector assembly comprising two connectors as described above and one stacking connector as described above, the two connectors being connected by stacking connectors in a three-dimensional stacking for connecting light bars in two planes of different heights.

The connector can detachably and simultaneously detachably connect a plurality of light bars, so that the plurality of light bars can be conveniently connected together to form patterns with different shapes. In addition, the provision of the upper and lower expansion interfaces in the connector of the present invention enables the stacked two connectors to be connected together by a stacked connection having the upper and lower connection tabs to form a stacked connector assembly. The stacked connector assembly enables the light bars to be arranged three-dimensionally on two planes of different heights, thereby achieving a three-dimensional lighting effect.

Drawings

Fig. 1 is a schematic diagram of a connector and a light bar according to an embodiment of the utility model;

FIG. 2 is an exploded schematic view of a connector according to an embodiment of the utility model;

FIG. 3A is a top view of a connector according to an embodiment of the present invention;

FIG. 3B is a longitudinal cross-sectional view of a connector according to an embodiment of the present invention;

fig. 3C is a bottom view of a connector according to an embodiment of the present invention;

FIG. 4 is a schematic view of a stacked connector assembly according to an embodiment of the present invention;

figure 5 is a longitudinal cross-sectional view of a stacked connector assembly according to an embodiment of the present invention.

Description of reference numerals:

1-a light bar, 11-an end connector, 111-a light bar buckle;

2-connector, 20-main body, 201-light bar connecting window, 202a, 202 b-separating wall, 203-upper fastening piece, 204-lower fastening piece, 21-upper PCBA board, 211-light bar electric connecting interface, 212-upper through hole, 213-upper expansion interface; 22-lower PCBA board, 221-lower expansion interface, 222-lower through hole, 23-lower fixing piece, 231-rotary connector, 24-double faced adhesive tape, 25-lower fixing piece fixing screw, 26-upper fixing piece, 261-lower connecting buckle and 27-upper PCBA board fixing screw;

3-stacked connector, 30-stacked connector upper surface, 301-upper expansion joint, 302-upper expansion buckle, 31-stacked connector lower surface, 311-lower expansion joint, 312-lower expansion buckle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to limit the utility model, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not restrictive, unless specifically stated otherwise.

The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships.

Fig. 1 is a schematic view of a light bar and a connector according to an embodiment of the utility model. As shown in fig. 1, both ends of the light bar 1 include end connectors 11. The light bar 1 is connected with the connector 2 through the end connector 11. The connector 2 includes a main body 20 having a columnar shape and an upper PCBA board 21 provided inside the main body. The interior of the body 20 below the upper PCBA plate 21 also includes a lower PCBA plate 22. The upper PCBA board 21 and the lower PCBA board 22 may be electrically connected to each other, for example, by means of a plug and socket connection. The specific structure of the upper PCBA board 21 and the lower PCBA board 22 can be seen from fig. 2 and fig. 3A to 3B. A plurality of light bar connection windows 201 with different orientations are formed on the side surface of the main body 20, and are used for receiving the end connection members 11 of the light bars 1. An upper expansion interface 213 is provided on the upper surface of the upper PCBA board 21 for establishing electrical connection with the lower expansion joint 311 of the stacked connector 3. A lower expansion interface 221 is provided on the lower surface of the lower PCBA board 22 for establishing electrical connection with the upper expansion joint 301 of the stacked connector 3. By arranging the upper extension interface 213 and the lower extension interface 221, two identical connectors can be connected together in a stacked manner through the stacked connecting piece 3 so as to connect the light bars on two planes with different heights, thereby realizing a three-dimensional light effect.

In fig. 1, reference numeral 201 merely identifies one light bar connection window for convenience of understanding. However, five other light bar connection windows identical to light bar connection window 201 are clearly shown in fig. 1. Therefore, the connector 2 in the present embodiment can simultaneously connect six light bars. Since the orientation of each light bar connection window is different, the connector 2 can connect the light bars in six different directions. The upper surface of the upper PCBA board 21 is provided with a light bar electric connection interface 211 corresponding to the light bar connection window 201. When the end connector 11 of the light bar 1 is inserted into the light bar connection window 201, the main body 20 can be mechanically connected to the end connector 11 of the light bar 1, and the light bar electrical connection interface 211 can be electrically connected to the end connector 11 of the light bar 1.

In the present embodiment, the connector 2 has a regular hexagonal prism shape. The light bar connection window 201 is provided at the upper end of six sides of the regular hexagonal prism shaped body 20. In other embodiments, the shape of the connector may be a regular prism having a number of sides of not less than three, such as a regular triangular prism, a regular quadrangular prism, a regular pentagonal prism, or the like. The upper end of each side of the regular prism-shaped connector can be provided with a light bar connection window. It should be noted that the shape of the connector is not limited to a regular prism shape, and other shapes such as a cylindrical shape or a tapered shape may be adopted. The light bar connecting windows can be arranged at the upper end part of the cylindrical surface or the conical surface at equal intervals.

In the present embodiment, the upper end portion of the prismatic main body 20 includes a plurality of partition walls 202a, 202b extending from the side edges of the main body 20 toward the inside of the main body 20. When the end connector 11 of the light bar 1 is inserted into the light bar connection window 201, the end connector 11 is mechanically connected to the partition walls 202a and 202b on both sides thereof. At this time, the end connector 11 is sandwiched between the partition walls 202a, 202b on both sides, and fixed in the connecting position by the partition walls 202a, 202b on both sides. It is to be noted that, for the sake of understanding, reference numerals 202a and 202b identify only two adjacent partition walls. However, as can be clearly seen in fig. 1, six partition walls are provided in the main body 20. The six divider walls divide the upper portion of the side walls of the main body 20 into six differently oriented light bar attachment windows.

In the present embodiment, the mechanical connection between the end connector 11 of the light bar 1 and the partition walls 202a and 202b of the connector 2 can be realized by a snap structure. Specifically, a fixing groove may be provided on each of the partition walls 202a, 202 b. When the end connector 11 of the light bar 1 is inserted into the light bar connection window 201, the light bar buckles 111 on both sides of the end connector 11 are respectively embedded into the fixing grooves on the partition walls 202a and 202b on both sides, so as to form a mechanical connection. It should be understood that the width of the fixing groove on each of the partition walls 202a, 202b may be set to be greater than or equal to the width of the two light bar hooks 111. In fact, since two adjacent light bar connection windows share one partition wall between them, the light bar buckles 111 on the end connectors 11 of two adjacent light bars may need to be received in the fixing grooves on the partition wall, and thus the width of the fixing grooves needs to be set to be greater than or equal to the width of the two light bar buckles. In addition, the positions of the lamp strip buckles 111 at both sides of the end connector 11 of each lamp strip need to be set to be staggered with each other so as to share the same fixing groove with the adjacent lamp strips when the lamp strip connection window is inserted. In other embodiments, two separate fixing slots may be provided on each partition wall for receiving two light bar fasteners facing the same partition wall on two adjacent end connectors 11.

Fig. 2 is an exploded schematic view of a connector according to an embodiment of the present invention. Fig. 3A, 3B, and 3C are a top view, a sectional view, and a bottom view, respectively, of the connector 2 shown in fig. 1. The connector 2 according to the embodiment of the present invention will be described in detail below with reference to fig. 2 and fig. 3A to 3C.

In the embodiment shown in fig. 2, the connector 2 includes, from top to bottom, an upper fixture 26, an upper PCBA board 21, a main body 20, a lower PCBA board 22, a lower fixture 23, a double-sided tape 24, and a lower fixture fixing screw 25.

As shown in fig. 2 and 3A, the upper PCBA plate 21 has mounting grooves corresponding to the partition walls 202a, 202b of the main body 20, so that each partition wall 202a, 202b is fitted into the corresponding mounting groove when the upper PCBA plate 21 is mounted into the main body 20. This kind of mounting means of going up PCBA board 21 both can strengthen the stability of the mounting structure of going up PCBA board, can increase the usable floor area of going up PCBA board 21 as far as possible again, improves the space utilization in main part 20. To further secure the upper PCBA plate 21, upper PCBA plate fixing screws 27 may be used to secure the upper PCBA plate 21 in the body 20.

In this embodiment, a light bar electrical connection interface 211 is disposed on the upper surface of the upper PCBA board 21 at a position corresponding to the light bar connection window 201. Specifically, the light bar electrical connection interface 211 can be implemented by pads disposed on the upper PCBA board. Each set of light bar electrical connection interfaces 211 may include three pads for electrical power connection, ground connection, and control signal connection, respectively. When the end connector 11 of the light bar 1 is inserted into the light bar connection window 201, the three electrical connection contacts of the end connector 11 are electrically connected with the three pads of the light bar electrical connection interface 211, respectively, so as to receive power and control signals from the connector 2. In the present embodiment, for convenience of understanding, reference numeral 211 only identifies one set of light bar electrical connection interfaces. However, as best seen in fig. 3A, six sets of electrical connection interfaces for the light bars are provided on the upper PCBA board, respectively for establishing electrical connection with the light bars inserted in six different directions.

In this embodiment, an upper extension interface 213 is also provided on the upper surface of the upper PCBA board 21. As shown in fig. 4, when the stacked connector 3 is mounted to the main body 20 of the lower connector, the lower expansion joint 311 of the stacked connector 3 establishes electrical connection with the upper expansion interface 213. The lower expansion joint 311 may specifically include three pogo pins (pogopins), and the upper expansion interface 213 may include three pads corresponding to the three pogo pins. The three pogo pins are respectively brought into contact with three pads on the upper PCBA board 21 so as to establish power connections, ground connections and control signal connections. Three sets of upper expansion interfaces (nine pads in total) are provided on the upper PCBA board 21 shown in fig. 3A, the three sets of upper expansion interfaces being spaced from each other by an angle of 120 degrees so that the lower expansion joints 311 can establish electrical connections with the upper PCBA board 21 in three different positions of rotation relative to the main body 20.

In this embodiment, the upper PCBA board 21 further includes an upper through hole 212 thereon. In the connector 2, the main body 20 is provided with an upper catch 203 below the upper through hole 212. The upper retainer 203 can be engaged with the lower connecting latch 261 of the upper fixture 26. As shown in fig. 3B, when the upper fixing member 26 is connected to the connector 20, the lower connecting latch 261 passes through the upper through hole 212 to be engaged with the upper latching member 203. The number of the lower connecting buckles 261, the upper through holes 212 and the upper catching pieces 203 can be three, so as to form three sets of jogged connection. The upper PCBA board may be further secured within the body 20 by the connection of the upper fixture 26 to the body 20. In addition, the upper fixing member 26 may close the upper portion of the main body 20, improving the appearance of the connector 2. The upper retainer 203 can also be engaged with the lower expansion catch 312 of the stacked connector 3. As shown in fig. 4 and 5, when the stacked connector 3 is connected to the lower connector, the lower expansion catch 312 of the stacked connector 3 passes through the upper through hole 212 to be engaged with the upper catch 203. The number of the lower expansion buckles 312, the upper through holes 212 and the upper buckling parts 203 can be three, so as to form three sets of jogged connection.

In this embodiment, the connector 2 further includes a lower PCBA board 22. The lower side of the upper PCBA board 21 can be provided with a connecting plug, and the upper side of the lower PCBA board 22 can be provided with a connecting socket. When the upper PCBA board 21 and the lower PCBA board 22 are mounted in the main body 20, the connection plug of the upper PCBA board 21 is inserted into the connection socket of the lower PCBA board 22, so that the circuits of the upper PCBA board 21 and the lower PCBA board 22 communicate with each other. The lower PCBA board 22 is provided on its lower surface with a lower extension interface 221 for electrical connection with the upper extension tab 301 of the stacked connector 3 to effect stacked connection of a plurality of connectors. As shown in fig. 4, when the stacked connector 3 is mounted on the main body 20 of the connector above, the upper expansion joint 301 of the stacked connector 3 establishes electrical connection with the lower expansion interface 221 of the connector. The upper expansion joint 301 may specifically include three pogo pins (pogopins), and the lower expansion interface 221 may include three pads corresponding to the three pogo pins. The three pogo pins contact three pads on the lower PCBA board 22, respectively, to establish power connections, ground connections, and control signal connections.

In the present embodiment, the connector 2 further includes a lower connection mechanism. The lower attachment mechanism includes a lower catch 204. The lower retainer 204 may include a plurality of locking tongues spaced apart from each other and distributed in a ring shape. The lower connecting mechanism may be detachably connected to the lower fixture 23. The lower fixture 23 includes a rotary joint 231 extending vertically upward. The rotary connector 231 can be detachably and rotatably connected with the lower retainer 204. The rotary connector 231 may have a cylindrical shape and be disposed at the center of the lower fixture 23. The upper end of the rotary connector 231 comprises a crown shaped catch. The lower PCBA plate 22 has a lower through hole 222 in the center. The rotary connector 231 of the lower fixing member 23 passes through the lower through hole 222 and then is engaged with the lower retainer 204 in the main body 20. Fig. 3B specifically shows a cross-sectional view of the rotary connector 231 and the lower catch 204 in a connected state. In the present embodiment, the lower fixture 23 may further include a screw hole for fixing the lower fixture 23 to a surface (e.g., a wall surface) of an object on which the connector 2 is arranged by the lower fixture fixing screw 25. Alternatively or additionally, the lower fixture 23 may further include a double-sided tape 24 for fixing the lower fixture 23 to a surface (e.g., a wall surface) of an object on which the connector 2 is disposed. When installing the connector on, for example, a wall surface, the lower fixing member 23 may be fixed to the wall surface (for example, by the lower fixing member fixing screw 25 and/or the double-sided tape 24), and then the lower fixing member 23 may be connected to the main body 20 of the connector 2. The user can rotate the position of the main body 20 of the connector 2 as desired to achieve the desired light bar connection effect.

The lower connection mechanism of the connector 2 may also be detachably connected with the stacking link 3. As shown in fig. 4 and 5, when the stacked connector 3 is connected to the connector above, the upper expanded catch 302 of the stacked connector 3 is fitted into the lower catch 204 through the lower through hole 222 of the lower PCBA board 22. The upper end of the upper expanding buckle 302 comprises a crown buckle for jogging and connecting with the annular lower retainer 204.

Figures 4 and 5 show an exploded view and a cross-sectional view, respectively, of a stacked connector assembly according to an embodiment of the present invention. As shown in fig. 4 and 5, the stacked connector assembly includes two of the above-described connectors and a stacked connector 3 connecting the two connectors together. The connector located above the stacked connector 3 is referred to as a first connector, and the connector located below the stacked connector 3 is referred to as a second connector. The stacking connector 3 includes a stacking connector upper surface 30 and a stacking connector lower surface 31. The upper stacking connector surface 30 includes an upwardly extending upper expansion tab 301 thereon and the lower stacking connector surface 31 includes a downwardly extending lower expansion tab 311 thereon. The upper expansion joint 301 and the lower expansion joint 311 protrude from the stacking link 3 in opposite directions. The upper expansion joint 301 is electrically connected to the lower expansion interface 221 of the first connector, and the lower expansion joint 311 is electrically connected to the upper expansion interface 213 of the second connector. The upper expansion joint 301 and the lower expansion joint 311 may include three pogopin pins, respectively. The upper expansion joint 301 is in electrical communication with the lower expansion joint 311, thereby placing the first connector in electrical communication with the second connector for the transmission of power and control signals.

In this embodiment, the stacking connector 3 further includes an upper expansion buckle 302 and a lower expansion buckle 312 projecting in opposite directions. The upper expansion clip 302 is cylindrical and includes a crown clip at its upper end. The upper expansion buckle 302 is connected with the lower buckling part 204 of the first connector in a jogged manner. The lower extension buckle 312 is engaged with the upper buckle part 203 of the second connector. The first connector and the second connector are fixed together by the overlapping connector 3 through the snap connection of the overlapping connector 3 and the first connector and the second connector to form a three-dimensional overlapping connector assembly. The upper fixture 26 shown in fig. 2 may be installed above the first connector. The lower fixture 23 shown in fig. 2 may be mounted below the second connector to mount the stacked connector assembly to an object (e.g., a wall surface) carrying the stacked connector assembly. In this embodiment, a two-layer connector assembly is formed by two connectors and one superposed connecting member 3. It should be understood that in other embodiments, more layers of stacked connector assemblies may be formed with more connectors and stacked connectors.

Thus, various embodiments of the present invention have been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. From the above description, it will be fully apparent to those skilled in the art how the technical solutions of the present invention can be implemented.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the utility model. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (14)

1. The utility model provides a connector for connecting lamp strip, a serial communication port, including being cylindrical main part (20) and setting up PCBA board (21) and lower PCBA board (22) inside main part (20), be equipped with lamp strip connection window (201) of a plurality of different orientations on the side of main part (20), an end connection spare (11) for receiving lamp strip (1), be equipped with extension interface (213) on going up PCBA board (21) upper surface, be used for establishing the electricity with the lower extension joint (311) of superpose connecting piece (3) and be connected, be equipped with extension interface (221) down on the lower surface of lower PCBA board (22), be used for establishing the electricity with the last extension joint (301) of superpose connecting piece (3) and be connected.

2. A connector according to claim 1, wherein the upper PCBA board (21) is provided with an upper through hole (212), the main body (20) is provided with an upper catch member (203) below the upper through hole (212) for engagement with the lower extension catch (312) of the stacked connector (3), the lower PCBA board (22) is provided with a lower through hole (222), and the main body (20) is provided with a lower catch member (204) above the lower through hole (222) for engagement with the upper extension catch (302) of the stacked connector (3).

3. The connector of claim 2, wherein the lower retainer (204) includes a plurality of circumferentially spaced latches.

4. The connector of claim 1, wherein the upper expansion interface (213) and the lower expansion interface (221) each include three pads for power, ground, and control signal connections.

5. The connector of claim 1, wherein the upper PCBA board (21) is provided with a light bar electrical connection interface (211) on the upper surface thereof, the main body (20) is capable of establishing a mechanical connection with the end connector (11) of the light bar (1) when the end connector (11) of the light bar (1) is inserted into the light bar connection window (201), and the light bar electrical connection interface (211) is capable of establishing an electrical connection with the end connector (11) of the light bar (1).

6. The connector of claim 1, wherein the main body (20) has a regular prism shape, and the light bar connection window (201) is provided at an upper end portion of a side surface of the main body (20).

7. Connector according to claim 6, characterized in that the body (20) has a regular triangular prism shape, a regular quadrangular prism shape or a regular hexagonal prism shape.

8. The connector of claim 6, wherein the upper end portion of the main body (20) includes a plurality of partition walls (202a, 202b) extending from the side prism of the main body (20) toward the inside of the main body (20) so that when the end connector (11) of the light bar (1) is inserted into the light bar connection window (201), the end connector (11) establishes mechanical connection with the partition walls (202a, 202b) at both sides thereof.

9. The connector of claim 8, wherein each of the partition walls (202a, 202b) is provided with a fixing groove, so that when the end connector (11) of the light bar (1) is inserted into the light bar connecting window (201), the light bar buckles (111) at both sides of the end connector (11) are respectively fitted into the fixing grooves of the partition walls (202a, 202b) to form the mechanical connection.

10. A stacking connection for connecting two connectors according to claims 1 to 9, respectively called first and second connectors, characterized in that it comprises an upper expansion joint (301) and a lower expansion joint (311) projecting in opposite directions, the upper expansion joint (301) being intended to establish an electrical connection with the lower expansion interface (221) of a first connector mounted above the stacking connection (3), the lower expansion joint (311) being intended to establish an electrical connection with the upper expansion interface (213) of a second connector mounted below the stacking connection (3).

11. The stacking connection of claim 10, wherein the upper expansion joint (301) and the lower expansion joint (311) each comprise three pogo pins.

12. The stacking connection of claim 10, wherein the stacking connection (3) further comprises an upper expansion catch (302) and a lower expansion catch (312) projecting in opposite directions, the upper expansion catch (302) being adapted to engage with the lower retainer (204) of the first connector and the lower expansion catch (312) being adapted to engage with the upper retainer (203) of the second connector.

13. The stacking connection of claim 12, wherein the upper expansion snap (302) is cylindrical and the upper end comprises a crown snap.

14. A stacking connector assembly, characterized in that it comprises two connectors according to any one of claims 1 to 9 and one stacking connector (3) according to any one of claims 10 to 13, which are connected by stacking the connectors (3) in a three-dimensional stacking for connecting light strips in two planes of different height.

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