Elastic connection onboard direct current connector

Abstract

The utility model provides an elastic connection onboard direct current connector comprising a housing which is internally provided with an installation chamber; the limiting lining is installed in the installation cavity in a buckled mode. One end of the movable positioning part is installed on the limiting lining in a sliding mode, and the other end of the movable positioning part is a front end plate which is located at the front end of the shell; one end of the elastic element is connected with the conductive sleeve, the other end of the elastic element is connected with the welding terminal, and the elastic force of the elastic element is utilized to keep the welding terminal in a forward extending state; the front end of the welding terminal is welded on the PCB, and the shell is installed on the case in a sealed mode through a nut and a gasket. The mounting and dismounting processes of the connector are simplified, the production cost is reduced, the production time is shortened, and the connection stability and reliability are improved. Meanwhile, the connector also has good installation flexibility, the tolerance to installation errors is high, and the difficulty and risk in the installation process are reduced.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to a DC connector mounted on an elastic connection board. Background Art

[0002] During the manufacturing and assembly of electronic devices, onboard DC connectors are key components for achieving electrical connections between circuit boards and external power supplies or other electronic devices. Their design and performance have a crucial impact on the stability and reliability of the entire electronic system. Traditional onboard DC connectors typically use a crimped cable with a terminal, which is then screwed to the power receiving terminal on the PCB using a lug at the other end. However, this connection method has exposed numerous shortcomings in practical applications.

[0003] First, from a space utilization perspective, traditional connection methods require additional cables, cable lugs, screws, and other components, resulting in a large overall connection structure and hindering the miniaturization and integration of electronic devices. Especially in space-constrained electronic devices, this connection method often becomes a design bottleneck, limiting the functionality and performance of the device.

[0004] Secondly, from the perspective of installation, traditional connection methods require multiple complex steps to complete, including crimping the terminal to the cable, crimping the cable to the lug, and screwing the lug to the receiving end. These steps not only increase production costs and time, but can also lead to unstable connection quality, such as loose cable crimping and uneven screw tightening, which affects the reliability and stability of the connection.

[0005] Furthermore, from the perspective of installation flexibility, traditional connection methods have a low tolerance for installation errors. Because the connection process involves the precise alignment and fixation of multiple components, any deviation during installation can lead to poor or even failed electrical connections, compromising the proper functioning of the entire electronic system. This stringent requirement for installation precision increases the difficulty and risk of the installation process. Utility Model Content

[0006] The purpose of this application is to provide a flexible board-mounted DC connector that not only simplifies the connector installation and removal process, reducing production costs and time, but also improves connection stability and reliability. Furthermore, the connector offers excellent installation flexibility and a high tolerance for installation errors, reducing the difficulty and risk during installation.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A DC connector mounted on an elastic connecting board comprises a shell having an installation chamber therein; a limit bushing, the limit bushing being snap-fitted into the installation chamber; a movable positioning portion, one end of the movable positioning portion being slidably mounted on the limit bushing, the other end being a front end plate, the front end plate being located at the front end of the shell; an elastic element, one end of the elastic element being connected to a conductive sleeve, the other end of the elastic element being connected to a welding terminal, the elastic force of the elastic element being utilized to maintain the welding terminal in an extended state; the front end of the welding terminal being welded to a PCB board, and the shell being sealed and mounted on a chassis via a nut and a washer.

[0009] In one embodiment, a positioning column is provided on the front side of the front end plate, and the positioning column can cooperate with the positioning hole on the PCB board for positioning.

[0010] In one embodiment, the elastic element is a corrugated spring.

[0011] In one embodiment, the movable positioning portion is composed of a left half and a right half, and the left half and the right half are combined with each other through docking columns and docking holes. The left half and the right half are combined to form a through groove for installing a welding terminal.

[0012] In one embodiment, the rear end of the movable positioning portion is provided with a first snap portion, and the limiting bushing is provided with a first slot corresponding to the first snap portion. The movable positioning portion is engaged with the first slot through the first snap portion, and the first slot can limit the distance that the movable positioning portion moves forward and backward.

[0013] In one embodiment, a second spring is provided in the conductive sleeve, and the conductive sleeve is connected to the connecting terminal via the second spring.

[0014] In one embodiment, the limiting bushing consists of a left half and a right half, and the left half and the right half are combined with each other through a docking column and a docking hole. The left half and the right half are combined to form a through hole for installing a conductive sleeve.

[0015] In one embodiment, the through hole corresponds to the second groove on the conductive sleeve, and the conductive sleeve and the limiting bushing are fixedly installed by the through hole being clamped in the second groove on the conductive sleeve.

[0016] In one embodiment, a positioning protrusion extends backward from the rear end of the limiting bushing, and a positioning groove is provided in the housing corresponding to the positioning protrusion.

[0017] In one embodiment, a power cord tail end fixing portion is provided at the rear end of the shell, and the shell is connected to the power cord tail end fixing portion by a snap, and the tail end of the shell is sealed and installed in the power cord tail end fixing portion through a sealing ring.

[0018] The beneficial effects of this application are:

[0019] (1) By utilizing a snap-fit ​​installation method for the position-limiting bushing and a sliding design for the movable positioning portion on the position-limiting bushing, the connector of the present invention eliminates the need for complex alignment and fixing steps during installation, greatly simplifying the installation process and improving production efficiency. Furthermore, the soldering terminals are directly soldered to the PCB, eliminating the multiple steps of cable crimping, lug installation, and screw fixing required in traditional connection methods, further shortening assembly time.

[0020] (2) The design of the elastic element cleverly connects the conductive sleeve to the soldering terminal, using elastic force to keep the soldering terminal in a forward position at all times, ensuring close contact with the power receiving end of the PCB board, thereby enhancing the stability and reliability of the electrical connection. In addition, the housing is sealed to the chassis with a nut and gasket, effectively preventing the impact of external environmental factors such as dust and moisture on the internal electrical connection of the connector, further improving the durability and safety of the connector.

[0021] (3) The sliding design of the movable positioning part allows for a certain amount of position adjustment during installation, allowing the connector to better adapt to slight deviations in the chassis or PCB board during installation, improving installation flexibility and fault tolerance. This feature is particularly important for electronic devices with limited space or high installation precision requirements, helping to reduce the risk of connection failure due to installation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of an onboard DC connector provided in one embodiment of the present application;

[0023] Figure 2 A top view of an onboard DC connector provided in one embodiment of the present application;

[0024] Figure 3 for Figure 2 Cross-sectional view at AA;

[0025] Figure 4 A schematic structural diagram of a housing of an onboard DC connector provided in one embodiment of the present application;

[0026] Figure 5 A schematic structural diagram of an elastic element of an onboard DC connector provided in one embodiment of the present application;

[0027] Figure 6A schematic structural diagram of a movable positioning portion of an onboard DC connector provided in one embodiment of the present application;

[0028] Figure 7 A schematic structural diagram of a limiting bushing of a board-mounted DC connector provided in one embodiment of the present application; DETAILED DESCRIPTION

[0029] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 7 As shown, the onboard DC connector in this embodiment includes a housing 1 , a limiting bushing 2 , a movable positioning portion 3 , an elastic element 4 , a welding terminal 5 , and a conductive sleeve 6 .

[0031] An installation chamber 13 is provided inside the shell 1 for accommodating and fixing other components. The limiting bushing 2 is installed in the installation chamber of the shell 1 by snap-fitting, which plays a positioning and supporting role. The limiting bushing 2 is composed of a left half 21 and a right half 22. The left half 21 and the right half 22 are combined with each other through docking columns and docking holes, and the combination forms a through hole 23 for installing the conductive sleeve 6. The through hole 23 corresponds to the second groove 61 on the conductive sleeve 6, and the through hole 23 is clamped on the second groove 61 of the conductive sleeve 6 to achieve fixed installation of the conductive sleeve 6 and the limiting bushing 2. A positioning protrusion 24 is extended backward from the rear end of the limiting bushing 2, and a positioning groove 11 is provided in the shell 1 corresponding to the positioning protrusion 24, which is used to further fix the limiting bushing 2.

[0032] One end of the movable positioning part 3 is slidably mounted on the limiting bushing 2, and the other end is a front end plate 31, which is located at the front end of the shell 1. The movable positioning part 3 is composed of a left half 32 and a right half 33. The left half 32 and the right half 33 are combined with each other through docking columns and docking holes to form a through slot 34 for installing the welding terminal 5. The welding terminal 5 can pass through the through slot 34. A first snap portion 35 is provided at the rear end of the movable positioning part 3, and a first snap slot 25 is provided on the limiting bushing 2 corresponding to the first snap portion 35. The movable positioning part 3 is engaged with the first snap slot 25 through the first snap portion 35, and the first snap slot 25 can limit the distance that the movable positioning part 3 moves forward and backward.

[0033] The elastic element 4 is a corrugated spring piece, one end of which is connected to the conductive sleeve 6 and the other end is connected to the welding terminal 5 , and uses elastic force to keep the welding terminal 5 in an extended state.

[0034] A second spring 62 is provided in the conductive sleeve 6 , and the conductive sleeve 6 is connected to a connection terminal (not shown in the figure, but of conventional design) via the second spring 62 to achieve electrical conduction.

[0035] The rear end of the conductive sleeve is integrally formed with the connecting terminal, and the conductive sleeve is connected to the power line through the connecting terminal.

[0036] The front end of the welding terminal 5 is welded to the PCB board to achieve electrical connection. The front side of the front end plate 31 is provided with a positioning column 36, which can cooperate with the positioning hole on the PCB board for positioning to ensure accurate docking of the connector with the PCB board.

[0037] A power cord tail end fixing portion 12 is provided at the rear end of the shell 1. The shell 1 is connected to the power cord tail end fixing portion 12 by a snap buckle. The tail end of the shell 1 is sealed and installed in the power cord tail end fixing portion 12 through a sealing ring (not shown in the figure, but a conventional design) to ensure the sealing of the connector.

[0038] In this embodiment, the elastic element 4 is formed by bending a corrugated conductive spring sheet, one end of which is connected to the conductive sleeve 6 and the other end is connected to the welding terminal 5 , and the welding terminal 5 is kept in an extended state by elastic force.

[0039] During the assembly process, first proceed to Step A: Solder the onboard DC connector to the PCB using the solder terminals. Next, remove nuts 7 and install the onboard DC connector, with the PCB soldered to it, into the mounting holes on the chassis' mounting panel. Next, proceed to Step C: Secure the PCB. Finally, proceed to Step D: Tighten the nuts and secure the onboard DC connector to the mounting panel with washers Q, completing the assembly process.

[0040] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0041] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in orders other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatus.

[0043] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A DC connector mounted on a flexible connection board, characterized in that: include a housing having a mounting chamber therein; A limiting bushing, the limiting bushing being snap-fitted into the installation chamber; A movable positioning portion, one end of which is slidably mounted on the limiting bushing, and the other end of which is a front end plate located at the front end of the housing; an elastic element, one end of which is connected to the conductive sleeve, and the other end of which is connected to the welding terminal, and the elastic force of the elastic element is used to keep the welding terminal in an extended state; The front end of the welding terminal is welded on the PCB board, and the shell is sealed and installed on the chassis through nuts and washers.

2. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: A positioning post is provided on the front side of the front end plate, and the positioning post can cooperate with the positioning hole on the PCB board for positioning.

3. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: The elastic element is a corrugated spring.

4. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: The movable positioning portion is composed of a left half and a right half, which are combined with each other through a docking column and a docking hole. The left half and the right half are combined to form a through groove for installing a welding terminal.

5. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: The rear end of the movable positioning part is provided with a first snap part, and the limiting bushing is provided with a first slot corresponding to the first snap part. The movable positioning part is engaged with the first slot through the first snap part, and the first slot can limit the distance that the movable positioning part moves forward and backward.

6. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: A second spring is provided in the conductive sleeve, and the conductive sleeve is connected to the connecting terminal via the second spring.

7. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: The limiting bushing consists of a left half and a right half, which are combined with each other through a docking column and a docking hole. The left half and the right half are combined to form a through hole for installing a conductive sleeve.

8. The elastic connecting plate-mounted DC connector according to claim 7, characterized in that: The through hole corresponds to the second groove on the conductive sleeve, and the through hole is clamped in the second groove on the conductive sleeve to achieve fixed installation of the conductive sleeve and the limiting bushing.

9. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: A positioning convex ring is extended backward from the rear end of the limiting bushing, and a positioning groove is provided in the shell body corresponding to the positioning convex ring.

10. The elastic connecting plate-mounted DC connector according to claim 1, characterized in that: The rear end of the shell is provided with a power line tail end fixing portion, and the shell is buckled and connected to the power line tail end fixing portion through a buckle, and the tail end of the shell is sealed and installed in the power line tail end fixing portion through a sealing ring.

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