Power supply device

Abstract

The utility model relates to a kind of power supply device, comprising: first connecting seat, including first seat body and the first electric connector being set to the inboard of first seat body;Second connecting seat, including second seat body and the second electric connector being set to the inboard of second seat body;Second seat body is set on first seat body and is rotationally connected with first seat body, and first electric connector is connected with second electric connector;At least two O-rings, along the axial direction of first seat body interval arrangement, and each O-ring is set on the circumference of first seat body, and it is set between first seat body and second seat body.The power supply device is at least two O-rings, and each O-ring is set on the circumference of first seat body, and it is set between first seat body and second seat body, along the axial direction of first seat body interval arrangement on the first seat body of first connecting seat, improve the sealing property and reliability of first seat body and second seat body, reduce the probability of water leakage, to improve the service life of the power supply device.

Description

Technical Field

[0001] This utility model relates to the field of electronic devices, and more particularly to power supply devices. Background Technology

[0002] The power supply device in the related technology rotatably connects a first connector with a first electrical connector to a second connector with a second electrical connector. Its advantages are that it can achieve quick assembly and disassembly and electrical connection, and it is easy to repair, reduce the size of the whole lamp and packaging costs, and simplify wiring and maintenance. However, its main problem is that the probability of water leakage is high, which leads to a short service life and a poor user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an improved power supply device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a power supply device, comprising:

[0005] The first connector includes a first body and a first electrical connector disposed inside the first body;

[0006] The second connecting seat includes a second seat body and a second electrical connector disposed inside the second seat body; the second seat body is sleeved on the first seat body and rotatably connected to the first seat body, and the first electrical connector is connected to the second electrical connector.

[0007] At least two O-rings are spaced apart along the axial direction of the first seat, and each O-ring is fitted around the outer periphery of the first seat and positioned between the first seat and the second seat.

[0008] In some embodiments, the O-ring has a circular cross-section.

[0009] In some embodiments, the side wall of the first base is provided with an installation limiting groove, which extends circumferentially along the first base and corresponds one-to-one with the O-rings;

[0010] And / or, a mounting hole is provided at the central axis of the first base body, the mounting hole being used for mounting the first electrical connector.

[0011] In some embodiments, a positioning post is provided at the central axis of the second base, the positioning post is hollow, and the second electrical connector is disposed in the positioning post;

[0012] When the first base body and the second base body are assembled, the positioning pin is inserted into the mounting hole and is coaxially arranged with the mounting hole.

[0013] In some embodiments, the first electrical connector includes a terminal block; the second electrical connector includes a plurality of terminals that mate with the terminal block.

[0014] In some embodiments, the system further includes a housing fitted around the periphery of the second housing, the inner side of which defines a cavity;

[0015] The outer shell is fixedly connected to the second base.

[0016] In some embodiments, a snap-fit ​​structure is provided on the inner wall of the outer shell and the outer wall of the second base;

[0017] The buckle structure includes a slot and a buckle that engages with the slot. The slot is located on the inner wall of the outer shell, and the buckle is located on the outer wall of the second base and is correspondingly arranged with the slot.

[0018] In some embodiments, a power board disposed within the housing is also included.

[0019] In some embodiments, one end of the housing is provided with a first opening, and the second seat is installed at the first opening;

[0020] The other end of the outer casing is provided with a second opening; the second opening is provided with a cover to close or open the second opening.

[0021] In some embodiments, a sealing structure is provided between the cover and the outer shell.

[0022] The power supply device of this utility model has the following beneficial effects: By arranging at least two O-rings at intervals along the axial direction of the first seat on the first seat of the first connecting seat, and each O-ring being sleeved on the outer periphery of the first seat and disposed between the first seat and the second seat, the power supply device can seal the gap between the first seat and the second seat by driving the radial deformation of the O-rings when the first seat and the second seat are rotatably connected, thereby improving the sealing performance and reliability of the first seat and the second seat, reducing the probability of water leakage, and thus improving the service life of the power supply device. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0024] Figure 1 This is a cross-sectional view of some power supply devices of this utility model;

[0025] Figure 2 yes Figure 1 An exploded view of the power supply device shown.

[0026] Figure 3 yes Figure 2 A schematic diagram of the housing structure of the power supply device shown.

[0027] Figure 4 yes Figure 3 A cross-sectional view of the outer casing shown;

[0028] Figure 5 yes Figure 2 A schematic diagram of the first connector structure of the power supply device shown.

[0029] Figure 6 yes Figure 5 The diagram shows the first seat structure of the first connecting seat;

[0030] Figure 7 yes Figure 5 A schematic diagram of the first electrical connection component of the power supply device shown.

[0031] Figure 8 yes Figure 2 A schematic diagram of the second connector of the power supply device shown.

[0032] Figure 9 yes Figure 8 The second connecting seat is shown in cross-sectional view. Detailed Implementation

[0033] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0034] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0036] Figure 1 Some preferred embodiments of the power supply device of this utility model are shown. This power supply device is a driver for LEDs; it is an electronic device that converts alternating current (AC) into a constant voltage / current suitable for LED operation and is a core component of LED lighting fixtures. This power supply device has advantages such as good sealing, high reliability, high waterproof performance, and long service life.

[0037] like Figure 1 and Figure 2 As shown, in some embodiments, the power supply device may include a housing 10, a first connecting base 20, a second connecting base 30, and at least two O-rings 40. The housing 10 may be fitted onto the second connecting base 30 and may be fixedly connected to the second connecting base 30. The first connecting base 20 may be rotatably connected to the second connecting base 30, and the two may be electrically connected to form an electrical connection. At least two O-rings 40 may be disposed between the first connecting base 20 and the second connecting base 30 to improve the sealing and reliability of the power supply device and reduce the probability of water leakage.

[0038] like Figure 3 and Figure 4As shown, in some embodiments, the housing 10 may be cylindrical. Generally, the housing 10 may be a cylindrical structure with a roughly circular cross-section, such as a frustum. In some embodiments, the housing 10 may include a first end 10a and a second end 10b, which are connected through each other. The inner side of the housing 10 defines a cavity 11, which can be used to accommodate the power board 60. One end of the housing 10 is provided with a first opening 12, which is generally located at the first end 10a. A second connector 30 may be installed at the first opening 12. The other end of the housing 10 is provided with a second opening 14, which may be located at the second end 10b and may be opposite to the first opening 12. A receiving groove 13 is provided circumferentially in the second opening 14. The receiving groove 13 may be annular and can be formed by recessing the housing 10 into the end face of the second end 10b.

[0039] like Figures 5 to 7 As shown, in some embodiments, the first connector 20 may include a first base 21 and a first electrical connector 22 disposed inside the first base 21. The first base 21 can be used to install the first electrical connector 22. The first electrical connector 22 can be electrically connected to an external LED light fixture and the second connector 30.

[0040] In some embodiments, the cross-section of the first seat 21 may be approximately circular, and it may include a first body 211. In some embodiments, the cross-section of the first body 211 may be circular. By setting the cross-section of the first body 211 to be circular, the first seat 21 is rotatably connected to the second connecting seat 30. One end of the first body 211 is provided with a first groove 2110, which may be annular. The bottom surface of the first groove 2110 may be provided with a through hole 2101, which can be used for mounting the connecting structure 50. In some embodiments, there may be multiple through holes 2101, which may be spaced apart circumferentially along the first groove 2110. The side wall of the first seat 21 is provided with an installation limiting groove 2111, which may extend circumferentially along the first seat 21 and correspond one-to-one with O-rings. Specifically, the installation limiting groove 2111 may be provided on the outer side wall of the first body 211 and can be used for O-ring installation limiting. In some embodiments, a limiting boss 2112 is provided on the outer side wall of the first base 21, which can be used for limiting the installation of the second connecting seat 30. The limiting boss 2112 can extend circumferentially along the first body 211. In some embodiments, a second groove 2113 is provided at the end of the first body 211 opposite to the first groove 2110. The second groove 2113 can be arranged circumferentially along the first body 211 and can be an annular groove. The through hole 2101 can pass through from the first groove 2110 to the second groove 2113.

[0041] In some embodiments, a central post 212 is provided at the central axis of the first base 21. Specifically, the central post 212 may be provided at the central axis of the first body 211, and the first groove 2110 is formed on the outer periphery of the central post 212. The central post 212 is a hollow structure with both ends through. In some embodiments, a mounting hole 2121 is provided at the central axis of the first base 21, which can be used to install the first electrical connector 22. The mounting hole 2121 may be formed in the central post 212. A positioning groove 2122 may be provided on the inner wall of the mounting hole 2121. There may be two positioning grooves 2122, which may be symmetrically arranged radially along the mounting hole 2121 for positioning the first electrical connector 22.

[0042] In some embodiments, the first electrical connector 22 may be a terminal block, and a plurality of terminal holes 221 may be provided on the first electrical connector 22. The plurality of terminal holes 221 may be spaced apart on the end face of the first electrical connector 22 facing the second connector 30.

[0043] like Figure 8 and Figure 9 As shown, in some embodiments, the second connector 30 may include a second base 31 and a second electrical connector 33 disposed inside the second base 31. The second base 31 may be sleeved on the first base 21 and may be rotatably connected to the first base 21. When the second base 31 is connected to the first base 21, the first electrical connector 22 may be connected to the second electrical connector 33 to form electrical conductivity.

[0044] In some embodiments, the second seat 31 may be disposed at the first opening 12. The cross-sectional shape and size of the second seat 31 may be adapted to the cross-sectional shape and size of the first opening 12. In some embodiments, the second seat 31 may be coaxially rotatable with the first seat 21. In some embodiments, the second seat 31 and the first seat 21 may be rotatably connected by a threaded structure.

[0045] In some embodiments, the second seat 31 may include a second body 310, which may be generally disc-shaped. The second body 310 may be fixedly connected to the outer casing 10. In some embodiments, a snap-fit ​​structure may be provided on the inner wall of the outer casing 10 and the outer wall of the second seat 31, that is, a snap-fit ​​structure may be provided on the inner wall of the outer casing 10 and the outer wall of the second body 310, and the outer casing 10 and the second seat 31 may be snapped and fixed together by the snap-fit ​​structure.

[0046] Generally, the latching structure may include a latching groove 15 and a latch 311 that engages with the latching groove 15. The latching groove 15 may be disposed on the inner wall of the outer casing 10, and there may be at least two of them. The at least two latching grooves 15 may be spaced apart circumferentially along the outer casing 10. In some embodiments, there may be three latching grooves 15. In other embodiments, the latching grooves 15 may not be limited to three, and may be four, five, six, seven, etc. In some embodiments, the latch 311 may be disposed on the outer wall of the second base 31 and corresponding to the latching groove 15. Specifically, the latch 311 may be disposed on the outer wall of the second body 310 and may protrude from the outer wall of the second body 310. Each latch 311 may be disposed one-to-one with a latching groove 15, and the two may engage with each other. The second body 310 may be fixedly connected to the outer casing 10 by engaging with the latching groove 15 through the latch 311, that is, when the outer casing 10 is rotated, the second base 31 may be rotated simultaneously.

[0047] In some embodiments, a third groove 312 may be formed on the inner side of the second body 310. The third groove 312 may be annular, which allows the first base 21 to be embedded and installed.

[0048] In some embodiments, a positioning post 32 is provided at the central axis of the second base 31. The positioning post 32 is hollow, and the second electrical connector 33 can be disposed in the positioning post 32. When the first base 21 and the second base 31 are assembled, the positioning post 32 can be inserted into the mounting hole 2121 and coaxially disposed with the mounting hole 2121, thereby facilitating the rotation and positioning of the first base 21 and the second base 31. In some embodiments, a cavity 321 is also formed on the inner side of the positioning post 32, which can be used to cooperate with the first electrical connector 22.

[0049] The second electrical connector 33 may include multiple terminals, which may be disposed on the end wall of the second body 310 and extend into the cavity 321 of the positioning post 32, and may cooperate with the terminal base. The terminals may be inserted into the terminal hole on the terminal base, thereby realizing the electrical connection between the second electrical connector 33 and the first electrical connector 22.

[0050] For example Figure 1 and Figure 2As shown, in some embodiments, the at least two O-rings 40 may be spaced apart along the axial direction of the first seat 21, and each O-ring may be fitted onto the outer periphery of the first seat 21 and disposed between the first seat 21 and the second seat 31. In some embodiments, the at least two O-rings 40 may be two, namely a first O-ring 40a and a second O-ring 40b. The first O-ring 40a and the second O-ring 40b may be sequentially disposed in the mounting limiting groove 2111. In other embodiments, the number of O-rings 40 may not be limited to two, but may be three, four, five, etc. In some embodiments, the cross-section of the O-ring 40 may be approximately circular.

[0051] It should be noted that the reason for choosing an O-ring is that the side of the O-ring is a convex curved surface rather than a flat surface. Generally, a single sealing ring is used, which needs to be deformed by vertically compressing the sealing ring to achieve a seal. The vertical pressure generated when rotating the first seat 21 and the second seat 31 can easily cause uneven deformation of the sealing ring. In addition, the first seat usually needs to be equipped with ribs to compress the sealing ring, which requires extremely high flatness of the rib plane and the machining accuracy during production is difficult to reach 100%, thus leading to the risk of seal failure.

[0052] O-rings seal the gap between the first and second O-ring housings through radial deformation. Radial compression deformation replaces vertical extrusion, eliminating stringent requirements on the flatness of the ribs. Furthermore, the double O-ring design provides redundant sealing, reducing the risk of single-point failure. It also lowers the machining precision threshold, improves production yield, significantly reduces the probability of leakage, and greatly enhances reliability. The double O-ring design also maintains compatibility, accommodating the rapid assembly and disassembly requirements of rotary plug-in systems without compromising ease of maintenance.

[0053] In some embodiments, the power supply device further includes a connection structure 50 for connecting the power supply device to a lamp. In some embodiments, the connection structure 50 may include a plurality of screws spaced apart on the first base 21. Specifically, each screw may be installed in a through hole 2101 and may protrude from the first base 21.

[0054] In some embodiments, the power supply device further includes a power board 60 disposed in the housing 10. The power board 60 can be installed and fixed in the cavity 11, and one end can abut against the second connecting seat 30.

[0055] In some embodiments, the power supply device further includes a cover 70, which may be disposed at the second end 10b and may be used to close or open the second opening 14. In some embodiments, the cover 70 may be snapped into and fixed to the housing 10.

[0056] In some embodiments, a sealing structure 80 may be provided between the cover 70 and the outer shell 10, which can be used to seal the gap between the cover 70 and the outer shell 10. In some embodiments, the sealing structure 80 may be a sealing ring, which may be accommodated in the receiving groove 13. In some embodiments, the sealing ring may be annular, which may be embedded in the receiving groove 13.

[0057] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A power supply device, characterized in that, include: The first connecting seat (20) includes a first seat body (21) and a first electrical connector (22) disposed inside the first seat body (21); The second connecting seat (30) includes a second seat body (31) and a second electrical connector (33) disposed inside the second seat body (31); the second seat body (31) is sleeved on the first seat body (21) and rotatably connected to the first seat body (21); the first electrical connector (22) is connected to the second electrical connector (33). At least two O-rings (40) are spaced apart along the axial direction of the first seat (21), and each O-ring (40) is fitted around the outer periphery of the first seat (21) and disposed between the first seat (21) and the second seat (31).

2. The power supply device according to claim 1, characterized in that, The O-ring (40) has a circular cross-section.

3. The power supply device according to claim 1, characterized in that, The side wall of the first seat (21) is provided with an installation limiting groove (2111), which extends along the circumference of the first seat (21) and is provided in a one-to-one correspondence with the O-ring (40); And / or, a mounting hole (2121) is provided at the central axis of the first base (21), the mounting hole (2121) being used for mounting the first electrical connector (22).

4. The power supply device according to claim 3, characterized in that, A positioning post (32) is provided at the central axis of the second base (31). The positioning post (32) is hollow, and the second electrical connector (33) is disposed in the positioning post (32). When the first base (21) and the second base (31) are assembled, the positioning post (32) is inserted into the mounting hole (2121) and is coaxially arranged with the mounting hole (2121).

5. The power supply device according to claim 4, characterized in that, The first electrical connector (22) includes a terminal block; the second electrical connector (33) includes a plurality of terminals that mate with the terminal block.

6. The power supply device according to claim 1, characterized in that, It also includes a shell (10) fitted around the outer periphery of the second seat (31), the inner side of which defines a cavity; The outer shell (10) is fixedly connected to the second base (31).

7. The power supply device according to claim 6, characterized in that, The inner wall of the outer shell (10) and the outer wall of the second base (31) are provided with a buckle (311) structure; The buckle (311) structure includes a slot (15) and a buckle (311) that cooperates with the slot (15). The slot (15) is disposed on the inner wall of the outer shell (10), and the buckle (311) is disposed on the outer wall of the second seat (31) and is disposed corresponding to the slot (15).

8. The power supply device according to claim 6, characterized in that, It also includes a power board (60) disposed in the housing (10).

9. The power supply device according to claim 6, characterized in that, One end of the outer shell (10) is provided with a first opening (12), and the second seat (31) is installed at the first opening (12); The other end of the outer shell (10) is provided with a second opening (14); the second opening (14) is provided with a cover (70) for closing or opening the second opening (14).

10. The power supply device according to claim 9, characterized in that, A sealing structure (80) is provided between the cover (70) and the outer shell (10).

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