Floating type plug-in assembly of key module
By using mounting posts and limiting connectors in the floating plug assembly of the key module, the problem of connector damage caused by stress concentration after the key module is inserted into the PCB board is solved, thereby improving the stability and durability of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU RUIFEIDA COMPUTER TECH CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-12
AI Technical Summary
When the existing key module is inserted into the board plug of the PCB, stress is concentrated on the connector, which leads to connector damage, especially during vibration and shock tests.
Design a floating plug-in assembly for a key module. By setting mounting posts on the housing, the PCB board is floating and mounted. Limiting connectors are used to restrict the floating range of the PCB board, thus avoiding stress concentration on the connector.
This effectively avoids stress concentration on the connector, reduces the risk of connector damage, and improves the stability and durability of the connection.
Smart Images

Figure CN224232959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of module connection technology, specifically to a floating plug-in component for a key module. Background Technology
[0002] Some existing modular connection structures typically have an internal male socket secured with screws, while an external female socket is directly plugged into the male socket to complete the module connection. This connection method is fine for ordinary female sockets that are small in size, lightweight, and have less stringent environmental requirements, such as common USB interfaces.
[0003] However, in some special equipment, an external key module needs to be inserted into the equipment. The key module is heavier than the internal male socket. After the key module is inserted into the internal male socket, stress will inevitably be applied to both ends of the connector. After long-term use, this will damage the connector, leading to a series of problems such as unstable connection and poor contact. Moreover, special equipment often requires some rigorous tests, such as vibration and shock tests, which increases the possibility of connector damage.
[0004] Based on the above background, the inventors designed a floating plug-in component for a key module to solve at least one of the above problems, and hereby file this application. Utility Model Content
[0005] The purpose of this application is to provide a floating plug-in assembly for a key module, which solves the problem that when the existing key module, which is relatively heavy, is inserted into the board plug of the PCB board, the stress is concentrated on the connector, which can easily lead to the damage of the connector.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution:
[0007] This application provides a floating plug-in assembly for a key module, including a housing and a PCB board with a board plug, wherein:
[0008] The housing is equipped with mounting posts, and the PCB board is mounted on the mounting posts of the housing in a floating manner.
[0009] Optionally, it also includes a detachable limiting connector that is fixed to the mounting post;
[0010] The PCB board has mounting holes, through which it can be floated between the limiting connector and the mounting post.
[0011] Optionally, the limiting connector includes an integrally formed mounting section and a limiting section;
[0012] The limiting connector is fixedly connected to the mounting column via the mounting section;
[0013] The outer diameter of the limiting section of the limiting connector is larger than the size of the mounting hole.
[0014] Optionally, the limiting connector is a limiting screw, the mounting section of the limiting screw is a threaded section, and the limiting section of the limiting screw is the screw end;
[0015] The mounting column is provided with a mounting screw hole, and the threaded section of the limit screw is threadedly connected to the mounting screw hole.
[0016] Optionally, the bottom surface of the limiting segment is a plane.
[0017] Optionally, the top of the mounting post is provided with a mounting platform stage, the height of which is greater than the thickness of the PCB board, and the size of the mounting platform stage is smaller than the mounting hole size of the PCB board.
[0018] Optionally, the maximum vertical and horizontal floating distances of the PCB board are 1mm and 0.5mm, respectively.
[0019] Optionally, the housing is provided with at least two mounting posts, and the two mounting posts are symmetrically distributed on both sides of the central axis of the plate plug.
[0020] Optionally, it also includes a plug-in module with a connector that is compatible with the board plug of the PCB.
[0021] The beneficial effects of this utility model are:
[0022] This application cleverly utilizes the mounting posts on the housing, allowing the PCB board to float slightly after being mounted on the mounting posts. This allows the PCB board to float slightly according to the movement of the plug-in module after it is plugged into the PCB board plug via the connector, thus avoiding stress concentration between the connector and the board plug. This effectively solves the problem that when the relatively heavy key module is inserted into the PCB board plug, stress concentration occurs on the connector, which can easily lead to connector damage. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.
[0024] Figure 2 This is a top view of an embodiment of the present application.
[0025] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of AA.
[0026] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.
[0027] Explanation of reference numerals in the attached drawings: 1-PCB board body, 101-mounting hole, 11-board body plug, 2-housing, 21-mounting post, 211-mounting platform stage, 212-mounting screw hole, 3-limiting screw, 31-mounting section, 32-limiting section, 4-connector, 5-plug module. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.
[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] like Figures 1 to 4 As shown, this embodiment provides a floating plug-in assembly for a key module, including a housing 2 and a PCB board 1 with a board plug 11, wherein:
[0033] The housing 2 is provided with mounting posts 21, and the PCB board 1 is mounted on the mounting posts 21 of the housing 2 in a floating manner.
[0034] This embodiment cleverly utilizes the mounting post 21 on the housing 2, allowing the PCB board 1 to float slightly on the mounting post 21 after it is mounted on it. This allows the PCB board 1 to float slightly according to the movement of the mounting post 21 after the plug module 5 is plugged into the board plug 11 of the PCB board 1 via the connector 4. This avoids stress being completely concentrated between the connector 4 and the board plug 11, effectively solving the problem that when the relatively heavy key module is inserted into the board plug 11 of the PCB board 1, stress is concentrated on the connector 4, which can easily lead to damage to the connector 4.
[0035] Specifically, in this embodiment, such as Figure 3 and Figure 4 As shown, it also includes a detachable limiting connector that is fixed to the mounting post 21;
[0036] The PCB board 1 is provided with mounting holes 101, through which the PCB board 1 can be floated between the limiting connector and the mounting post 21. In this embodiment, the limiting connector facilitates the installation of the PCB board 1.
[0037] Specifically, in this embodiment, such as Figure 4 As shown, the limiting connector includes an integrally formed mounting section 31 and a limiting section 32;
[0038] The limiting connector is fixedly connected to the mounting post 21 via the mounting section 31;
[0039] The outer diameter of the limiting section 32 of the limiting connector is larger than the size of the mounting hole 101 to prevent the limiting section 32 from failing to limit the PCB board 1.
[0040] Specifically, in this embodiment, the limiting connector is a limiting screw 3, the mounting section 31 of the limiting screw 3 is a threaded section, and the limiting section 32 of the limiting screw 3 is a screw end;
[0041] The mounting post 21 is provided with a mounting screw hole 212. The threaded section of the limiting screw 3 is threadedly connected to the mounting screw hole 212. The limiting connector is the limiting screw 3, which facilitates installation and disassembly operations. In this embodiment, the limiting screw 3 is a flat head screw. Technicians can choose other types of screws according to their needs, which will not be elaborated here.
[0042] Specifically, in this embodiment, such as Figure 4 As shown, the bottom surface of the limiting segment 32 is a plane. Technicians can also set it to a curved surface or other shapes as needed, which will not be elaborated here.
[0043] Specifically, in this embodiment, such as Figure 4As shown, the top of the mounting post 21 is provided with a mounting platform stage 211. The height of the mounting platform stage 211 is greater than the thickness of the PCB board 1, so that the PCB board 1 can float up and down. The maximum distance of the vertical float is the difference between the thickness of the PCB board 1 and the height of the mounting platform stage 211. The size of the mounting platform stage 211 is smaller than the size of the mounting hole 101 of the PCB board 1, so that the PCB board 1 can float left and right. The maximum distance of the left and right float is the difference between the size of the mounting platform stage 211 and the size of the mounting hole 101.
[0044] Specifically, in this embodiment, the maximum vertical and horizontal floating distances of the PCB board 1 are 1mm and 0.5mm, respectively. Technicians can set the maximum vertical and horizontal floating distances of the PCB board 1 according to their needs. The specific numerical design will not be elaborated here.
[0045] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, there are at least two mounting posts 21 on the housing 2, and the two mounting posts 21 are symmetrically distributed on both sides of the central axis of the board plug 11, so that the PCB board 1 can maintain good stability after floating installation and reduce the amplitude of left and right swaying.
[0046] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, it also includes a plug-in module 5 with a connector 4. The connector 4 is plugged into and adapted to the board plug 11 of the PCB board 1. In this embodiment, the connector 4 is soldered onto the plug-in module 5. The connector 4 can be plugged into the board plug 11 of the PCB board 1 or removed from the board plug 11.
[0047] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.
Claims
1. A floating plug-in assembly for a key module, characterized in that, Includes a housing (2) and a PCB board (1) with a board connector (11), wherein: The housing (2) is provided with mounting posts (21), and the PCB board (1) is mounted on the mounting posts (21) of the housing (2) in a floating manner; It also includes a detachable limiting connector that is fixed to the mounting post (21); The PCB board (1) is provided with mounting holes (101), and the PCB board (1) can be floated between the limiting connector and the mounting post (21) through the mounting holes (101).
2. The floating plug-in assembly of a key module according to claim 1, characterized in that, The limiting connector includes an integrally formed mounting section (31) and a limiting section (32). The limiting connector is fixedly connected to the mounting post (21) via the mounting section (31); The outer diameter of the limiting section (32) of the limiting connector is larger than the size of the mounting hole (101).
3. The floating plug-in assembly of a key module according to claim 2, characterized in that, The limiting connector is a limiting screw (3), the mounting section (31) of the limiting screw (3) is a threaded section, and the limiting section (32) of the limiting screw (3) is a screw end; The mounting post (21) is provided with a mounting screw hole (212), and the threaded section of the limiting screw (3) is threadedly connected to the mounting screw hole (212).
4. The floating plug-in assembly of a key module according to claim 2, characterized in that, The bottom surface of the limiting segment (32) is a plane.
5. The floating plug-in assembly of a key module according to claim 1, characterized in that, The top of the mounting post (21) is provided with a mounting platform stage (211). The height of the mounting platform stage (211) is greater than the thickness of the PCB board (1), and the size of the mounting platform stage (211) is smaller than the size of the mounting hole (101) of the PCB board (1).
6. The floating plug-in assembly of a key module according to claim 1, characterized in that, The maximum vertical and horizontal floating distances of the PCB board (1) are 1 mm and 0.5 mm, respectively.
7. The floating plug-in assembly of a key module according to claim 1, characterized in that, There are at least two mounting posts (21) on the housing (2), and the two mounting posts (21) are symmetrically distributed on both sides of the central axis of the plate plug (11).
8. The floating plug-in assembly of a key module according to claim 1, characterized in that, It also includes a plug-in module (5) with a connector (4), which is plugged into the PCB board (1) for adaptation.