A snap-on multi-node connection assembly

Abstract

A snap-on multi-node connection assembly includes a lower fixing seat, an upper fixing seat, and an electrical connection plate, wherein the lower fixing seat includes a lower seat body with an open upper end, three lower connection half-tubes respectively arranged on at least three sides of the lower seat body and connected to the interior of the lower seat body, a fixing member arranged inside the lower seat body and used to place the electrical connection plate, and two connecting members at least arranged on the upper surfaces of two opposite sides of the lower seat body; the upper fixing seat includes an upper seat body with an open lower end, an upper connection half-tube arranged on the side of the upper seat body and connected to the lower connection half-tube to form a space for the connection wire tube to pass through, and a fixing groove arranged on the lower surface of the upper seat body and snap-connected to the connecting member. The utility model greatly reduces the space occupied, saves labor and material costs, and has the advantages of good economy and strong practicality by snap-on connection of the upper and lower fixing seats and internal PCB connection plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a snap-on multi-node connection component. Background Art

[0002] Due to the popularity of industrial automation, the demand for signal transmission component harnesses in various industrial application environments is growing rapidly. Circular connection components often need to be connected over long distances and to connect multiple devices at the same time, which requires transfer through multiple interfaces. There are two common multi-serial port methods on the market. One is to install a main interface on the host, and directly transfer multiple circular connectors on the main interface board. Each circular connector transfers a separate RS485 control harness to connect multiple devices. However, this connection method is transferred on the host, and each interface is connected with a separate RS485 component harness. According to the use distance of each device, it is equivalent to making 12 long RS485 component harnesses and installing them separately, which greatly increases the material input and increases the difficulty of installation. In addition, the harness installation occupies a large space, and the material and labor costs are high in terms of cost.

[0003] Another method is to use a bus, use a three-way interface on the bus according to the use distance, and transfer an interface at each three-way interface to realize the connection of multiple devices. For example, the document with the authorization announcement number CN212257781U discloses a three-way connector for electrical connection, including an insulating shell and an electrical connector built in the insulating shell, the electrical connector has three ends, the ends of the electrical connector use a banana male head or a banana female head that can be separated and plugged with a banana head, and a docking space for the banana female head of the docking terminal to be plugged in and out is formed between the banana male head and the insulating shell.

[0004] Although the device has the advantage of easy installation, it still has the following problems: the three-way connector occupies a large space, has high structural precision requirements, and is relatively costly. Utility Model Content

[0005] In view of the above-mentioned problems, the purpose of the utility model is to provide a snap-on multi-node connection component, which greatly reduces the space occupancy and saves labor and material costs through the snap-on connection of the upper and lower fixed seats and the internal PCB connecting plate, and has the advantages of good economy and strong practicality.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A snap-on multi-node connection assembly comprises a lower fixing seat, an upper fixing seat, and an electrical connection plate, wherein the lower fixing seat comprises a lower seat body with an open upper end, three lower connection half-tubes respectively arranged on at least three sides of the lower seat body and connected to the interior of the lower seat body, a fixing piece arranged inside the lower seat body and used to place the electrical connection plate, and two connecting pieces arranged on at least two opposite side upper surfaces of the lower seat body; the upper fixing seat comprises an upper seat body with an open lower end, an upper connection half-tube arranged on the side of the upper seat body and connected to the lower connection half-tube to form a space for a connecting wire tube to pass through, and a fixing groove arranged on the lower surface of the upper seat body and snap-connected to the connecting piece.

[0008] As a further preferred embodiment of the present invention, the upper and lower surfaces of the electrical connection plate respectively have an upper shielding layer and a lower shielding layer.

[0009] As a further preferred embodiment of the present invention, the fixing member includes four supporting plates arranged on the inner bottom surface of the lower seat body and located at the four corners of the electrical connection plate.

[0010] As a further preferred embodiment of the present invention, the fixing member further comprises a limit baffle plate arranged on a side of the support plate away from the center of the lower seat body.

[0011] As a further preferred embodiment of the present invention, the fixing member further includes a central support column arranged on the bottom surface of the lower seat body.

[0012] As a further preferred embodiment of the present invention, the upper fixing seat further includes a clamping protrusion arranged inside the upper seat body.

[0013] As a further preferred embodiment of the present invention, a limiting protrusion is provided on the inner wall of the lower connecting half-tube and / or the upper connecting half-tube.

[0014] As a further preferred embodiment of the present invention, the connection assembly further includes an end connector, which is connected to the end of the connecting wire tube that is not connected to the electrical connection board.

[0015] In summary, the utility model has the following beneficial effects:

[0016] The utility model optimizes the structure on the basis of the existing three-way joint. Through the snap-on connection of the upper and lower fixing seats and the internal PCB connecting plate, the space occupation is greatly reduced, the labor and material costs are saved, and the utility model has the advantages of good economy and strong practicality.

[0017] The upper and lower fixing seat snap-on connection structure provided by the utility model enables each node to be opened and repaired separately during maintenance, which has the advantages of saving time and trouble and greatly improves the efficiency of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic diagram of the structure of the utility model from a top view.

[0019] Attached Figure 2 It is a structural schematic diagram of the lower fixing seat of the utility model.

[0020] Attached Figure 3 It is a structural schematic diagram of the upper fixing seat of the utility model.

[0021] Attached Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model at a side view angle.

[0022] Description of the drawings: connecting wire tube a, lower fixing seat 1, upper fixing seat 2, electrical connection plate 3, end connector 4;

[0023] The lower seat body 11, the lower connecting half pipe 12, the fixing member 13, the connecting member 14, and the limiting protrusion 15;

[0024] Support plate 131, limit baffle 132, central support column 133;

[0025] Upper seat body 21, upper connecting half pipe 22, fixing groove 23, clamping protrusion 24;

[0026] An upper shielding layer 31 and a lower shielding layer 32 . DETAILED DESCRIPTION

[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0028] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] As attached Figure 1 ~Attached Figure 4 As shown, a snap-on multi-node connection assembly provided in this embodiment includes a lower fixing seat 1 , an upper fixing seat 2 , and an electrical connection plate 3 .

[0031] Among them, the lower fixed seat 1 includes a lower seat body 11 with an open upper end, three lower connecting half pipes 12 respectively arranged on the three sides of the lower seat body 11 and connected to the interior of the lower seat body 11, a fixing member 13 arranged inside the lower seat body 11 and used to place the electrical connection board 3, and at least two connecting members 14 arranged on the upper surfaces of two opposite sides of the lower seat body 11.

[0032] The upper fixing seat 2 includes an upper seat body 21 with an open lower end, an upper connecting half-tube 22 arranged on the side of the upper seat body 21 and connected to the lower connecting half-tube 12 to form a space for the connecting wire tube a to pass through, and a fixing groove 23 arranged on the lower surface of the upper seat body 21 and engaged with the connecting piece 14.

[0033] It is worth noting that the lower seat body 11 and the upper seat body 21 are connected to form a closed and hollow box body, the center of the box body is used to place the electrical connection board 3, and the three sides of the box body are provided with three tubes for the connection wire tube a to penetrate into the box body (formed by the connection of the lower connection half tube 12 and the upper connection half tube 22), and the connection wire tube a is provided with a wire harness, and the end of the wire harness is connected to the interface on the electrical connection board 3 by welding. It can be understood that the electrical connection board 3 is an existing PCB electrical connection board, which is a prior art, and the three sides of the electrical connection board have interfaces for the connection of the wire harness, which can also be directly realized by those skilled in the art, so it will not be repeated in this embodiment.

[0034] It is worth noting that the tube body formed by the lower connecting half tube 12 and the upper connecting half tube 22 protrudes from the side of the box body (formed after the lower seat body 11 and the upper seat body 21 are connected). The purpose of this arrangement is to allow the connecting wire tube a to be positioned and penetrate into the box body, and the purpose is to prevent the bending of the connecting wire tube a outside the box body from affecting the connection inside the box body, preventing the welding point from breaking and the wire from falling out. Further preferably, the protruding length of the lower connecting half tube 12 and the upper connecting half tube 22 is 4-6 mm.

[0035] It can be understood that the connection method between the connecting member 14 and the fixing groove 23 is a common snap-on connection method in the prior art, and can also be equivalently replaced by any snap-on connection structure commonly used by technicians in this field, so it is not expanded in this embodiment.

[0036] In this embodiment, the upper and lower surfaces of the electrical connection plate 3 respectively have an upper shielding layer 31 and a lower shielding layer 32. The upper shielding layer 31 and the lower shielding layer 32 are made of the same shielding material, and the shielding material can be any commonly used material in the art, such as aluminum foil, etc. The purpose of this setting is to suppress electromagnetic interference.

[0037] As a further preference of this embodiment, in order to enhance the effect of suppressing electromagnetic interference, a shielding layer (not shown in the figure) made of the same material may also be provided on the inner bottom surface of the lower seat body 11 and the upper seat body 21 .

[0038] In this embodiment, the fixing member 13 includes four support plates 131 disposed on the inner bottom surface of the lower seat body 11 and located at the four corners of the electrical connection board 3, a limit baffle 132 disposed on the side of the support plate 131 away from the center of the lower seat body 11, and a central support column 133 disposed on the inner bottom surface of the lower seat body 11. The upper surface of the central support column 133 is flush with the upper surface of the support plate 131, and is used to jointly support the electrical connection board 3; the limit baffle 132 protrudes from the upper surface of the support plate 131 by 1 to 3 mm, and is intended to limit the slippage of the electrical connection board 3, thereby avoiding the breakage of the solder joint and the wear of the shielding layer.

[0039] In this embodiment, the upper fixing seat 2 further includes a clamping protrusion 24 disposed inside the upper seat body 21. After the lower seat body 11 and the upper seat body 21 are connected, the clamping protrusion 24 just abuts against the upper surface of the electrical connection board 3, and cooperates with the support plate 131 and the central support column 133 to clamp the electrical connection board 3 to prevent it from loosening.

[0040] In this embodiment, in order to reduce the wear of the fixing member 13 and the clamping protrusion 24 on the electrical connection board 3, the fixing member 13 and the clamping protrusion 24 can be made of common materials such as hard rubber.

[0041] As a further preferred embodiment of the present invention, a limiting protrusion 15 is provided on the inner wall of the lower connecting half-tube 12 and / or the upper connecting half-tube 22. The limiting protrusion 15 is mainly located at the connection between the lower connecting half-tube 12 and / or the upper connecting half-tube 22 and the inner cavity of the seat body, in order to increase the friction coefficient of the connection and prevent the connecting wire tube a from slipping or falling off.

[0042] In this embodiment, the connection assembly further includes an end connector 4, which is connected to the end of the connecting wire tube a that is not connected to the electrical connection board 3. In this embodiment, the end connector 4 is used to connect the main line and the device. This structure is a prior art, and reference can be made to the circular connector disclosed in the document with the authorization announcement number CN219658991U, so it will not be repeated in this embodiment.

[0043] The working principle of the snap-on multi-node connection assembly provided in this embodiment is: connect one end of the connecting wire tube a to the end connector 4, then weld the other end of the connecting wire tube a to the electrical connection board 3, apply UV glue on the welding points to protect the welding points, and after completing the welding of the three connecting wire tubes a, place the electrical connection board 3 together with the three connecting wire tubes a into the lower fixing seat 1 and fix them, finally cover the upper fixing seat 2 and fasten the snaps to complete the connection.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A snap-on multi-node connection assembly, comprising a lower fixing seat (1), an upper fixing seat (2), and an electrical connection plate (3), characterized in that The lower fixing seat (1) comprises a lower seat body (11) with an open upper end, three lower connecting half-tubes (12) respectively arranged on at least three sides of the lower seat body (11) and connected to the interior of the lower seat body (11), a fixing piece (13) arranged inside the lower seat body (11) and used to place the electrical connection plate (3), and two connecting pieces (14) arranged on at least two opposite upper surfaces of the side edges of the lower seat body (11); the upper fixing seat (2) comprises an upper seat body (21) with an open lower end, an upper connecting half-tube (22) arranged on the side edge of the upper seat body (21) and connected to the lower connecting half-tube (12) to form a space for the connecting wire tube (a) to pass through, and a fixing groove (23) arranged on the lower surface of the upper seat body (21) and engaged with the connecting piece (14).

2. A snap-on multi-node connection assembly according to claim 1, characterized in that The upper and lower surfaces of the electrical connection plate (3) respectively have an upper shielding layer (31) and a lower shielding layer (32).

3. A snap-on multi-node connection assembly according to claim 1, characterized in that The fixing member (13) comprises four supporting plates (131) arranged on the inner bottom surface of the lower seat body (11) and located at the four corners of the electrical connection plate (3).

4. A snap-on multi-node connection assembly according to claim 3, characterized in that The fixing member (13) further comprises a limit baffle (132) arranged on a side of the support plate (131) away from the center of the lower seat body (11).

5. A snap-on multi-node connection assembly according to claim 4, characterized in that The fixing member (13) further comprises a central support column (133) arranged on the inner bottom surface of the lower seat body (11).

6. A snap-on multi-node connection assembly according to claim 1, characterized in that The upper fixing seat (2) further comprises a clamping protrusion (24) arranged inside the upper seat body (21).

7. A snap-on multi-node connection assembly according to claim 1, characterized in that , a limiting protrusion (15) is provided on the inner wall of the lower connecting half pipe (12) and / or the upper connecting half pipe (22).

8. A snap-on multi-node connection assembly according to any one of claims 1 to 7, characterized in that , further comprising an end connector (4), wherein the end connector (4) is connected to the end of the connecting wire tube (a) that is not connected to the electrical connection plate (3).

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