Power supply device

Abstract

The utility model provides a power supply device. The power supply device comprises a shell, a sealing piece and a sealing ring. The shell is provided with a containing cavity used for containing the power module and a through hole penetrating through the shell, and the through hole is communicated with the containing cavity and right corresponds to the power module. The sealing piece is arranged in the through hole and connected with the hole wall of the through hole. The sealing ring is sleeved with and abuts against the peripheral side wall of the sealing piece, and the sealing ring is located in the through hole and abuts against the hole wall of the through hole. According to the power supply device, the sealing element is matched with the sealing ring to realize double sealing of the through hole, so that the sealing performance of the power supply device is improved, water prevention is realized, and the reliability of the power supply device is improved.

Description

Technical Field

[0001] The present application belongs to the field of power supply manufacturing technology, and specifically relates to a power supply device. Background Art

[0002] In the power supply device of the related art, the housing is provided with a through hole connected to the accommodating cavity, and the through hole corresponds to the power module arranged in the accommodating cavity, so that the user can adjust the power module through the through hole. At present, the silicone plug is often pressed into the through hole to make the silicone plug interference compressed to achieve the sealing of the through hole. However, the sealing reliability of the silicone plug through its own size compression is not high, resulting in poor sealing performance of the power supply device and easy damage. Utility Model Content

[0003] In view of this, the present application provides a power supply device, comprising:

[0004] A housing having a housing cavity for accommodating a power module and a through hole penetrating the housing, wherein the through hole communicates with the housing cavity and corresponds to the power module;

[0005] A sealing member, disposed in the through hole and connected to a hole wall of the through hole; and

[0006] The sealing ring is sleeved and abuts against the outer peripheral side wall of the sealing member. The sealing ring is located in the through hole and abuts against the hole wall of the through hole.

[0007] The power supply device provided in the present application is composed of a housing, a sealing member, and a sealing ring. On the one hand, the sealing member is located in the through hole and connected to the hole wall of the through hole to achieve a single seal. On the other hand, the sealing ring is located in the through hole and is sandwiched between the outer peripheral side wall of the sealing member and the hole wall of the through hole. The sealing member and the hole wall of the through hole squeeze the sealing ring, causing the sealing ring to deform and compress and seal, thereby achieving a double seal.

[0008] Therefore, the present application realizes double sealing of the through hole by setting a seal and a sealing ring to cooperate with each other, so as to improve the sealing performance of the power supply device, realize waterproofing, and improve the reliability of the power supply device.

[0009] The hole wall of the through hole has an internal thread, the peripheral side wall of the sealing member has an external thread, and the sealing member and the housing are threadedly connected via the internal thread and the external thread.

[0010] The hole wall of the through hole includes a first part and a second part arranged along the outer wall of the shell to the inner wall of the accommodating cavity, the first part is used to abut against the sealing ring, and the second part has the internal thread.

[0011] Wherein, along the arrangement direction from the outer wall of the shell to the inner wall of the accommodating cavity, the aperture of the first part gradually decreases.

[0012] Wherein, the power supply device further comprises a blocking member arranged on the hole wall of the through hole, and the blocking member is closer to the accommodating cavity than the internal thread.

[0013] Wherein, the blocking member is arranged around the hole wall of the through hole along the circumferential direction of the hole wall of the through hole.

[0014] Wherein, an annular groove is recessed on the outer peripheral side wall of the sealing member, and the annular groove is used to accommodate at least a part of the sealing ring.

[0015] Among them, the sealing member includes a cover plate and a column arranged around one side of the cover plate, the column is used to be arranged in the through hole and connected to the hole wall of the through hole, the cover plate is used to be away from the accommodating cavity compared to the column, and the surface of the cover plate facing away from the column is recessed with an installation groove, and the installation groove is used to accommodate part of the installation member.

[0016] Wherein, the sealing member further comprises a reinforcing portion, which is protruding from the surface of the cover plate on which the column is provided and corresponds to the mounting groove.

[0017] The shell further comprises a body and a boss protruding from one side of the body, the body has the accommodating cavity, and the through hole penetrates the surface of the boss away from the body and the cavity wall of the accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0019] Figure 1 This is an exploded view of the structure of a power supply device provided in one embodiment of the present application.

[0020] Figure 2 This is a schematic diagram of the structure in which a seal and a sealing ring are not installed on a housing in a power supply device provided in one embodiment of the present application.

[0021] Figure 3 A three-dimensional structural diagram of a housing provided in accordance with one embodiment of the present application.

[0022] Figure 4 This is a schematic diagram of the structure in which a seal and a sealing ring are installed on a housing in a power supply device provided in one embodiment of the present application.

[0023] Figure 5 A top view of a power supply device provided in one embodiment of the present application.

[0024] Figure 6 for Figure 5 A partial enlarged view of the power supply unit.

[0025] Explanation of the reference numerals: power supply device 1, housing 11, through hole 111, internal thread 1111, first part 1112, second part 1113, accommodating chamber 112, body 113, boss 114, seal 12, external thread 121, annular groove 122, cover 123, mounting groove 1231, column 124, sealing ring 13, power module 14, circuit board 141, adjustable power switch 1411, foam sealing pad 142, dial insulating sheet 143, blocking member 15, prompting portion 16. DETAILED DESCRIPTION

[0026] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0027] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0028] In this application, "first", "second", etc. are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0029] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0030] In the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] Please refer to Figure 1-Figure 6 , Figure 1 This is an exploded view of the structure of a power supply device provided in one embodiment of the present application. Figure 2 This is a schematic diagram of the structure in which a seal and a sealing ring are not installed on a housing in a power supply device provided in one embodiment of the present application. Figure 3 A three-dimensional structural diagram of a housing provided in accordance with one embodiment of the present application. Figure 4 This is a schematic diagram of the structure in which a seal and a sealing ring are installed on a housing in a power supply device provided in one embodiment of the present application. Figure 5 A top view of a power supply device provided in one embodiment of the present application. Figure 6 for Figure 5 A partial enlarged view of the power supply unit.

[0033] This embodiment provides a power supply device 1, which includes a housing 11, a sealing member 12, and a sealing ring 13. The housing 11 has a housing cavity 112 for accommodating a power module 14, and a through hole 111 penetrating the housing 11, wherein the through hole 111 communicates with the housing cavity 112 and corresponds to the power module 14. The sealing member 12 is disposed in the through hole 111 and connected to the hole wall of the through hole 111. The sealing ring 13 is sleeved and abutted against the outer peripheral side wall of the sealing member 12, and the sealing ring 13 is located in the through hole 111 and abutted against the hole wall of the through hole 111.

[0034] This embodiment provides a power supply device 1 for controlling parameters such as power and current to control the operation of functional parts. Functional parts include but are not limited to light-emitting lamps, display devices, electronic devices, etc. The power module 14 includes a housing 11, a sealing member 12, and a sealing ring 13. The housing 11 has a housing 112 for accommodating the power module 14. Optionally, the power module 14 includes a circuit board 141, a foam sealing pad 142, a dial code insulating sheet 143, etc. The circuit board 141 is provided with an adjustable power switch 1411. The dial code insulating sheet 143 is provided on the adjustable power switch 1411, and the foam sealing pad 142 is sleeved on the adjustable power switch 1411. The peripheral side wall of the housing 11 is provided with a through hole 111, which is connected to the housing cavity 112 and corresponds to the adjustable power switch 1411 of the circuit board 141 of the power module 14. The adjustable power switch 1411 of the circuit board 141 of the power module 14 can be exposed from the through hole 111. The user controls the adjustable power switch 1411 through the through hole 111 to adjust the power module 14 .

[0035] The power supply device 1 provided in this embodiment includes a sealing member 12, at least part of which is disposed in the through hole 111 and connected to the hole wall of the through hole 111 to achieve a single seal. Optionally, the sealing member 12 can be threadedly connected to the hole wall of the through hole 111, can abut against the hole wall of the through hole 111, or can be snap-connected to the hole wall of the through hole 111.

[0036] The power supply device 1 provided in this embodiment further includes a sealing ring 13, which is elastic. The sealing ring 13 is located in the through hole 111 and is sandwiched between the outer peripheral side wall of the sealing member 12 and the hole wall of the through hole 111. The sealing member 12 and the hole wall of the through hole 111 squeeze the sealing ring 13, causing the sealing ring 13 to deform and compress and seal, thereby realizing double sealing.

[0037] Therefore, in this embodiment, the seal 12 and the seal ring 13 cooperate with each other to achieve double sealing of the through hole 111, so as to improve the sealing performance of the power supply device 1, achieve waterproofing, and improve the reliability of the power supply device 1.

[0038] Please refer to Figure 1-Figure 3 In one embodiment, the hole wall of the through hole 111 has an internal thread 1111, the outer peripheral side wall of the sealing member 12 has an external thread 121, and the sealing member 12 and the housing 11 are threadedly connected via the internal thread 1111 and the external thread 121.

[0039] In this embodiment, the through hole 111 and the seal 12 are threadedly connected via the internal thread 1111 and the external thread 121, which improves the tightness of the connection between the through hole 111 and the seal 12, further improves the sealing performance of the power supply device 1, and further improves the reliability of the power supply device 1. The seal 12 can also be understood as a knob.

[0040] Furthermore, the fastening force between the external thread 121 of the sealing member 12 and the internal thread 1111 of the hole wall of the through hole 111 is applied to the sealing ring 13 to generate deformation compression sealing, and the linear sealing effect of the sealing ring 13 will be better.

[0041] Please refer to Figure 1-Figure 6 In one embodiment, the hole wall of the through hole 111 includes a first part 1112 and a second part 1113 arranged along the outer wall of the shell 11 to the inner wall of the accommodating cavity 112, the first part 1112 is used to abut the sealing ring 13, and the second part 1113 has the internal thread 1111.

[0042] The first portion 1112 is closer to the outer wall of the housing 11 than the second portion 1113, which can also be understood as the first portion 1112 being located at one end of the through hole 111 close to the outside, and the second portion 1113 being located at one end of the through hole 111 close to the accommodating cavity 112. When the seal 12 and the sealing ring 13 are assembled to the housing 11, the seal 12 is threadedly connected to the second portion 1113, and the sealing ring 13 is sandwiched between the seal 12 and the first portion 1112.

[0043] This embodiment limits the position of the sealing ring 13 and the sealing member 12 in cooperation with the through hole 111, so that the sealing ring 13 is arranged outside, so that the sealing ring 13 can better isolate external moisture and other debris, which is beneficial to further improve the sealing performance of the power supply device 1 and further improve the reliability of the power supply device 1.

[0044] Please refer to Figure 1-Figure 6 In one embodiment, along the arrangement direction from the outer wall of the shell 11 to the inner wall of the accommodating cavity 112, the aperture of the first part 1112 gradually decreases.

[0045] The aperture of the first part 1112 gradually decreases, which can also be understood as the hole wall of the first part 1112 is a tapered surface that is larger on the outside and smaller on the inside. In other words, the hole wall of the through hole 111 is provided with a sink, and the sink is provided with a tapered surface for linear contact sealing of the sealing ring 13. The tightening force of the threaded connection between the sealing member 12 and the hole wall of the through hole 111 is applied to the sealing ring 13 to cause deformation compression sealing, and the linear sealing effect will be better.

[0046] This embodiment can further increase the contact area between the sealing ring 13 and the hole wall of the through hole 111 by limiting the hole wall shape of the first portion 1112 , thereby further improving the sealing performance of the power supply device 1 and further improving the reliability of the power supply device 1 .

[0047] Please refer to Figure 3In one embodiment, the power supply device 1 further includes a blocking member 15 disposed on the hole wall of the through hole 111 , and the blocking member 15 is closer to the accommodating cavity 112 than the internal thread 1111 .

[0048] The power supply device 1 provided in this embodiment further includes a blocking member 15 for blocking external moisture, potting glue and other debris in the accommodating cavity 112. The number of the blocking member 15 can be one or more. The blocking member 15 can also be understood as a baffle. Optionally, the baffle can be arranged on a part of the hole wall of the through hole 111, or can be arranged around the hole wall of the through hole 111.

[0049] This embodiment provides a blocking member 15 on the hole wall of the through hole 111. First, the blocking member 15 can prevent the user from observing the poor appearance of the foam sealing pad 142 in the power module 14 being squeezed and deformed when observing the power supply device 1 from the outside, thereby improving the appearance performance of the power supply device 1. Second, when the user removes the sealing member 12 and the sealing ring 13 from the housing 11, moisture may flow into the accommodating cavity 112 along the internal thread 1111. The blocking member 15 can prevent moisture from entering the accommodating cavity 112, protecting the power module 14, thereby improving the reliability of the power supply device 1. Third, the blocking member 15 can protect the adjustable power switch 1411 in the power module 14 from being affected by the potting glue, thereby improving the reliability of the power supply device 1.

[0050] Please refer to Figure 3 In one embodiment, the blocking member 15 is arranged around the wall of the through hole 111 along the circumferential direction of the wall of the through hole 111.

[0051] Optionally, the hole wall of the through hole 111 includes a first side wall that is arranged opposite to each other, and a second side wall that is located between the first side walls, the first side wall is bent and connected to the second side wall, and the first side wall and the second side wall are arranged to form the hole wall of the through hole 111. The blocking member 15 includes a first blocking portion arranged on the first side wall, and a second blocking portion arranged on the second side wall, the first blocking portion is connected to the second blocking portion, and the ends of the two first blocking members 15 that are away from the hole wall of the through hole 111 are spaced apart, and the ends of the two second blocking members 15 that are away from the hole wall of the through hole 111 are spaced apart. The first blocking portion can also be understood as an upper and lower baffle, and the second blocking portion can also be understood as a left and right baffle. Further optionally, along the radial direction of the through hole 111, the height of the first blocking member 15 is greater than the height of the second blocking member 15.

[0052] In this embodiment, the blocking member 15 is positioned so as to surround the hole wall of the through hole 111, so that the blocking member 15 blocks water from entering the accommodating cavity 112 from any angle, thereby improving the protection performance of the power module 14 and the protection performance of the adjustable power switch 1411 in the power module 14 from being affected by the potting glue, thereby further improving the reliability of the power supply device 1. In addition, the user is further prevented from observing the poor appearance of the foam sealing pad 142 in the power module 14 being squeezed and deformed.

[0053] Please refer to Figure 1-Figure 6 In one embodiment, an annular groove 122 is recessed on the outer peripheral side wall of the sealing member 12 , and the annular groove 122 is used to accommodate at least a portion of the sealing ring 13 .

[0054] The outer peripheral side wall of the sealing member 12 is concavely provided with an annular groove 122 for accommodating the sealing ring 13 so that the sealing ring 13 is not easy to fall off, thereby further improving the sealing performance of the power supply device 1 and further improving the reliability of the power supply device 1.

[0055] Specifically, the sealing member 12 includes a cover plate 123 and a column 124 arranged around one side of the cover plate 123, the column 124 is used to be arranged in the through hole 111 and connected to the hole wall of the through hole 111, the cover plate 123 is used to be away from the accommodating cavity 112 compared to the column 124, the annular groove 122 is arranged on the outer peripheral side wall of the column 124 close to the cover plate 123, and the external thread 121 is arranged on the outer peripheral side wall of the column 124 and away from the cover plate 123 compared to the annular groove 122.

[0056] In the related art, when the power module 14 needs to be adjusted, the silicone plug needs to be removed with fingers, and the silicone plug also needs to be reinstalled with fingers, which will bring some electrical safety risks to the user and reduce the safety performance of the power supply device 1.

[0057] Please refer to Figure 1-Figure 6 In one embodiment, the sealing member 12 includes a cover plate 123 and a column 124 arranged around one side of the cover plate 123, the column 124 is used to be arranged in the through hole 111 and connected to the hole wall of the through hole 111, the cover plate 123 is used to be away from the accommodating cavity 112 compared to the column 124, and the surface of the cover plate 123 away from the column 124 is recessed with an installation groove 1231, and the installation groove 1231 is used to accommodate part of the installation member.

[0058] The seal 12 provided in this embodiment includes a cover plate 123 and a column 124. The column 124 is arranged on one side of the cover plate 123. The column 124 has an inner peripheral side surface and an outer peripheral side surface that are opposite to each other. It can also be understood that the center of the column 124 is a hollow structure, which reduces the weight and production cost of the seal 12. The outer peripheral side surface of the column 124 is provided with an annular groove 122 and an external thread 121. The cover plate 123 is arranged outside the through hole 111 and is located on the side of the through hole 111 away from the accommodating cavity 112.

[0059] The surface of the cover plate 123 facing away from the column 124 is provided with a mounting groove 1231 for accommodating the mounting member. The mounting groove 1231 may be in a straight shape or a cross shape. The mounting member may be a straight screwdriver or a cross screwdriver.

[0060] This embodiment provides a mounting groove 1231 on the sealing member 12 that can cooperate with the mounting member, so that the user does not need to use fingers to directly operate the sealing member 12 during the installation and removal of the sealing member 12, and can indirectly operate the sealing member 12 through the mounting member, thereby improving the safety performance of the power supply device 1, and is easy to install, has high assembly efficiency, and high reliability. Therefore, the power supply device 1 provided by this embodiment has a simple structure, is easy to install, does not need to use fingers to install during the assembly process, avoids the safety risks caused by using fingers to install and remove, and has high assembly efficiency and high reliability.

[0061] Furthermore, the power supply device 1 provided in this embodiment can not only install and remove the seal 12 by tools, but also compress the sealing ring 13 by the locking force between the seal 12 and the wall of the through hole 111 to achieve a sealing effect and realize waterproofing.

[0062] Optionally, a surface of the cover body facing away from the column 124 is provided with a prompt portion 16 for prompting the user. The prompt portion 16 can be a direction mark for closing and opening to install and remove the sealing member 12, reminding the user of the installation direction.

[0063] In one embodiment, the sealing member 12 further includes a reinforcing portion, which is protruded from the surface of the cover plate 123 where the column 124 is provided and corresponds to the mounting groove 1231 .

[0064] The reinforcing portion may be a protrusion. The seal 12 provided in this embodiment further includes a reinforcing portion for reinforcing the structural strength of the cover plate 123, and the reinforcing portion may also be understood as a reinforcing rib. By providing a reinforcing portion on one side of the surface of the cover plate 123 provided with the column 124, and corresponding to the mounting groove 1231, the structural strength of the cover plate 123 can be improved, so that the cover plate 123 will not break easily, and the bearing capacity of the cover plate 123 is improved, thereby further improving the reliability of the mounting groove 1231.

[0065] Please refer to Figure 3In one embodiment, the shell 11 further includes a body 113 and a boss 114 protruding from one side of the body 113 , the body 113 has the accommodating cavity 112 , and the through hole 111 penetrates the surface of the boss 114 away from the body 113 and the cavity wall of the accommodating cavity 112 .

[0066] The housing 11 provided in this embodiment includes a body 113 and a boss 114, wherein the boss 114 is disposed on the outer peripheral side of the body 113. The body 113 has a receiving cavity 112, and a through hole 111 passes through the boss 114 and the body 113. Optionally, the shape of the boss 114 is similar to a "shield" shape. Optionally, the end of the boss 114 is arc-shaped. Optionally, the through hole 111 is opened at the center of the surface of the boss 114 away from the body 113.

[0067] In this embodiment, the through hole 111 is arranged on the boss 114 so that the through hole 111 passes through the boss 114 and the main body 113. This is not only beneficial to increase the hole depth of the through hole 111 and improve the connection performance between the hole wall of the through hole 111 and the sealing member 12, but also can improve the space utilization rate of the housing 11, save materials and reduce costs.

[0068] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A power supply device, characterized in that: include: A housing having a housing cavity for accommodating a power module and a through hole penetrating the housing, wherein the through hole communicates with the housing cavity and corresponds to the power module; A sealing member, disposed in the through hole and connected to a hole wall of the through hole; and The sealing ring is sleeved and abuts against the outer peripheral side wall of the sealing member. The sealing ring is located in the through hole and abuts against the hole wall of the through hole.

2. The power supply device according to claim 1, characterized in that: The hole wall of the through hole has an internal thread, the outer peripheral side wall of the sealing member has an external thread, and the sealing member and the housing are threadedly connected via the internal thread and the external thread.

3. The power supply device according to claim 2, characterized in that: The hole wall of the through hole includes a first part and a second part arranged along the outer wall of the shell to the inner wall of the accommodating cavity, the first part is used to abut the sealing ring, and the second part has the internal thread.

4. The power supply device according to claim 3, characterized in that: Along the arrangement direction from the outer wall of the shell to the inner wall of the accommodating cavity, the aperture of the first part gradually decreases.

5. The power supply device according to claim 2, characterized in that: The power supply device further includes a blocking member disposed on a hole wall of the through hole, and the blocking member is closer to the accommodating cavity than the internal thread.

6. The power supply device according to claim 5, characterized in that: The blocking member is arranged around the hole wall of the through hole along the circumferential direction of the hole wall of the through hole.

7. The power supply device according to claim 1, characterized in that: An annular groove is recessed on the outer peripheral side wall of the sealing member, and the annular groove is used to accommodate at least a portion of the sealing ring.

8. The power supply device according to claim 1, characterized in that: The sealing member includes a cover plate and a column arranged around one side of the cover plate, the column is used to be arranged in the through hole and connected to the hole wall of the through hole, the cover plate is used to be away from the accommodating cavity compared to the column, and the surface of the cover plate facing away from the column is recessed with an installation groove, and the installation groove is used to accommodate part of the installation member.

9. The power supply device according to claim 8, characterized in that: The sealing member further comprises a reinforcing portion, which is protruding from the surface of the cover plate where the column is provided and corresponds to the mounting groove.

10. The power supply device according to claim 1, wherein: The shell further comprises a body and a boss protruding from one side of the body, the body comprises the accommodating cavity, and the through hole penetrates the surface of the boss away from the body and the cavity wall of the accommodating cavity.

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