CN112701879A - Switching power supply casing that reliability is high - Google Patents
Switching power supply casing that reliability is high Download PDFInfo
- Publication number
- CN112701879A CN112701879A CN202011583089.0A CN202011583089A CN112701879A CN 112701879 A CN112701879 A CN 112701879A CN 202011583089 A CN202011583089 A CN 202011583089A CN 112701879 A CN112701879 A CN 112701879A
- Authority
- CN
- China
- Prior art keywords
- support
- power supply
- switching power
- movable
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a switching power supply shell with high reliability, which comprises a frame body and a top plate, wherein a plurality of air holes are uniformly formed in the surface of the top plate, a movable plate is arranged below the top plate and in a position corresponding to the air holes, through holes are uniformly formed in the surface of the movable plate, a guide plate is fixedly connected with the movable plate through a connecting rod, the guide plate is connected with a movable rod through a sliding rod, one end of the movable rod is positioned in a cylinder, one end of the cylinder is fixedly connected with a heat absorbing plate, and low-boiling-point liquid is filled; according to the invention, through gasification and expansion of low-boiling-point liquid, when the internal temperature of the switching power supply changes, the movable plate and the through hole can be driven to move back and forth, so that the through hole and the air hole are overlapped or staggered, the air hole is switched between a closed state and an open state, the heat dissipation performance and the dust resistance of the shell can be dynamically switched, and the required performances are respectively improved corresponding to the working state and the rest state of the switching power supply.
Description
Technical Field
The invention relates to the technical field of switch power supply shells, in particular to a switch power supply shell with high reliability.
Background
A switching power supply, also called an exchange power supply or a switching converter, is a high-frequency power conversion device. The function of the switching power supply is to convert a level voltage into a voltage or current required by a user terminal through different types of architectures, and the switching power supply is widely applied to various electronic devices nowadays, and the unit power density is continuously increased, and the definition of the high power density is up to hundreds of watts per cubic inch at present.
Because a large number of high-power semiconductor devices such as a bridge rectifier, a high-current rectifier tube, a high-power triode or a field effect tube are used in the switching power supply. They generate a large amount of heat during their operation, which if not removed in a timely manner and at a reasonable level will affect the normal operation of the switching power supply and in the severe cases will damage the switching power supply. Therefore, heat dissipation holes are reserved in most of protection shells of the switching power supply, but another disadvantage caused by the excessively transparent heat dissipation holes is that the dustproof effect of the switching power supply is reduced, a large amount of dust is attached to the surface of an internal structure, and the dust can in turn hinder the heat dissipation of the switching power supply.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a switching power supply shell with high reliability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a switching power supply shell with high reliability comprises a frame body and a top plate, wherein the top plate is fixedly arranged above the frame body, a plurality of air holes are uniformly formed in the surface of the top plate, a movable plate is arranged at the position, corresponding to the air holes, below the top plate, a movable plate is arranged, one end of the movable plate is provided with a limiting device, the surface of the movable plate is uniformly provided with through holes, the movable plate is connected with the top plate through movable devices on two sides, a guide plate is further arranged between the movable devices, the guide plate is fixedly connected with the movable plate through a connecting rod, two sliding rods are symmetrically fixed below the guide plate, the other ends of the sliding rods are provided with sliding devices, a movable rod is fixedly connected to the middle position of each sliding rod, one end of each movable rod is located inside a cylinder, the movable rods are connected with the cylinder through pistons, fixing devices are arranged, and the cylinder is filled with a low boiling point liquid.
As a preferable technical scheme of the invention, the limiting device comprises a fixed plate and springs, the fixed plate is fixedly arranged on the lower surface of the top plate, the springs are uniformly arranged on one side of the fixed plate, and the other ends of the springs are abutted against the side surface of the movable plate.
As a preferable technical scheme, the movable device comprises movable guide rails, the movable guide rails are symmetrically fixed on the surface below the top plate, and the movable plate and the guide plate are in sliding connection with the movable guide rails.
As a preferable technical solution of the present invention, the sliding device includes a sliding support and a sliding groove, the sliding support is fixedly installed at the bottom of the sliding rod, the sliding grooves are symmetrically disposed on the inner surface of the frame body, and the sliding support and the sliding groove are connected in a sliding manner.
As a preferable technical solution of the present invention, the fixing device includes a first support and a second support, the first support is fixedly installed on the lower surface of the top plate, the second support is fixedly installed on the bottom surface of the frame body, anti-slip pads are disposed at positions where the first support and the second support are close to each other, the anti-slip pads are abutted against the outer surface of the cylinder, and a locking device is further disposed at one side of the first support and one side of the second support.
As a preferable technical solution of the present invention, the locking device includes semicircular rods and fixing rings, the semicircular rods are symmetrically disposed at positions where the first support and the second support are close to each other, and the fixing rings are in threaded connection with outer surfaces of circular rods formed by the two semicircular rods.
As a preferable technical solution of the present invention, cushions are disposed on both sides of the first and second holders near the fixing ring.
As a preferred technical solution of the present invention, the low boiling point liquid is liquid monofluorotrichloromethane.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, under the traction action of the slide rod and the guide plate, when the internal temperature of the switching power supply changes, the movable plate and the through hole can be driven to move back and forth, so that the through hole and the air hole are overlapped or staggered, the air hole is switched between a closed state and an open state, the heat dissipation performance and the dust resistance of the shell can be dynamically switched, and the required performances are respectively improved corresponding to the working state and the rest state of the switching power supply.
2. According to the invention, the movable rod is driven to move back and forth by virtue of the gasification expansion phenomenon of the low-boiling-point liquid during temperature change, and when the temperature in the shell rises, the low-boiling-point liquid is gasified and expanded to enable the movable rod to move forward, so that the through hole in the surface of the movable plate is coincided with the air vent, the air permeability of the shell is improved, and heat is more easily dissipated; after the temperature in the casing drops, the volume shrink of low boiling point liquid adds the deformation of spring, can let the fly leaf remove backward, makes opening and bleeder vent offset, and the casing seals this moment, has improved the dustproof performance of device, avoids switching power supply's inner structure to receive external dust and influences.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the internal frame structure of the present invention;
FIG. 5 is a detailed view of the present invention;
fig. 6 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.
In the figure: the heat absorption device comprises a frame body 1, a top plate 2, air holes 3, a fixed plate 4, a spring 5, a through hole 6, a movable plate 7, a movable guide rail 8, a connecting rod 9, a first support 10, a second support 11, a sliding support 12, a sliding groove 13, a sliding rod 14, a heat absorption plate 15, a guide plate 16, a movable rod 17, a cylinder 18, a piston 19, low-boiling-point liquid 20, an anti-skid pad 21, a cushion pad 22, a semi-circular rod 23 and a fixing ring 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: a switching power supply shell with high reliability comprises a frame body 1 and a top plate 2, wherein the top plate 2 is fixedly arranged above the frame body 1, a plurality of vent holes 3 are uniformly formed in the surface of the top plate 2, the vent holes 3 are the key for changing the heat dissipation performance and the dust resistance of the shell, a movable plate 7 is arranged below the top plate 2 and corresponds to the vent holes 3, one end of the movable plate 7 is provided with a limiting device, through holes 6 are uniformly formed in the surface of the movable plate 7, when the temperature inside the switching power supply changes, the movable plate 7 and the through holes 6 can be driven to move back and forth, the through holes 6 and the vent holes 3 are overlapped or staggered, the vent holes 3 are switched between a closed state and an opened state, the heat dissipation performance and the dust resistance of the shell can be dynamically switched, the required performance is respectively improved corresponding to the working state and the rest state of the switching power supply, the movable, the guide plate 16 is fixedly connected with the movable plate 7 through a connecting rod 9, the movable plate 7 can be driven to move back and forth by the back and forth movement of the guide plate 16, two sliding rods 14 are symmetrically fixed below the guide plate 16, a sliding device is arranged at the other end of each sliding rod 14, a movable rod 17 is fixedly connected to the middle position of each sliding rod 14, one end of each movable rod 17 is located inside a cylinder 18, each movable rod 17 is connected with the cylinder 18 through a piston 19, fixing devices are arranged on the upper side and the lower side of each cylinder 18, a heat absorbing plate 15 is fixedly connected to one end of each cylinder 18, each heat absorbing plate 15 is used for absorbing and conducting heat inside the device, the temperature inside each cylinder 28 can rise faster, low-boiling-point liquid 20 is filled in each cylinder 18, the piston 19 can move forwards through gasification and expansion of the low-boiling-point.
Further, stop device includes fixed plate 4 and spring 5, and fixed plate 4 fixed mounting is on the below surface of roof 2, and spring 5 evenly sets up in one side of fixed plate 4 to the other end of spring 5 offsets with the side of fly leaf 7, and after fly leaf 7 moved forward, spring 5 can produce reverse direction effort, after the inside temperature drop of casing, can go back fly leaf 7 bullet, lets opening 6 and bleeder vent 3 squint, seals whole casing.
Further, the movable device comprises a movable guide rail 8, the movable guide rail 8 is symmetrically fixed on the surface below the top plate 2, and the movable plate 7 and the guide plate 16 are both in sliding connection with the movable guide rail 8, so that the movable process of the movable plate 7 and the through opening 6 can be smoother.
Further, slider includes sliding support 12 and spout 13, and sliding support 12 fixed mounting is in the bottom of slide bar 14, and spout 13 symmetry sets up the inside surface at framework 1, and sliding support 12 and spout 13 are sliding connection, make the displacement of slide bar 14 more steady.
Further, fixing device includes first support 10 and second support 11, first support 10 fixed mounting is on the below surface of roof 2, second support 11 fixed mounting is on the bottom surface of framework 1, extrusion through two upper and lower supports enables drum 18 to fix in half-air, the position that first support 10 and second support 11 are close to mutually all is equipped with slipmat 21, slipmat 21 offsets with the surface of drum 18, strengthen the fixed effect of drum 18, one side of first support 10 and second support 11 still is equipped with locking device for pin two upper and lower supports.
Further, locking device includes semicircle pole 23 and solid fixed ring 24, and semicircle pole 23 symmetry sets up in the position that first support 10 and second support 11 are close to mutually, can fix first support 10 and second support 11 through merging two semicircle poles 23, and solid fixed ring 24 makes drum 18 be extruded and fix with the circular pole surface threaded connection that two semicircle poles 23 are constituteed.
Furthermore, the first support 10 and the second support 11 are provided with the cushion 22 on the side close to the fixing ring 24, and the cushion 22 can make the threaded connection of the fixing ring 24 more gradual and stable.
Further, the low boiling point liquid 20 is liquid trichlorofluoromethane, which is also called freon-11, the molecular formula is CFCl3, and is a colorless liquid with a boiling point of 23.8 ℃ at normal pressure, the boiling point of the liquid trichlorofluoromethane in the cylinder 18 is properly increased due to the squeezing action of the piston 19, and the temperature emitted during the operation of the switching power supply is also in the span interval, and the piston 19 is driven to move forward by the volume expansion of the low boiling point liquid 20 in the process of changing from liquid to gas, so that the movable plate 7 and the port 6 move forward.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a switching power supply casing that reliability is high, includes framework (1) and roof (2), its characterized in that, roof (2) fixed mounting is in the top of framework (1) to the surface of roof (2) evenly is equipped with a plurality of bleeder vents (3), the position that roof (2) below corresponds bleeder vent (3) is equipped with fly leaf (7), the one end of fly leaf (7) is equipped with stop device, the surface of fly leaf (7) evenly is equipped with opening (6) to fly leaf (7) link to each other with roof (3) through the head gear of both sides, still be equipped with deflector (16) between the head gear, deflector (16) are fixed continuous with fly leaf (7) through connecting rod (9), the below symmetry of deflector (16) is fixed with two slide bars (14), the other end of slide bar (14) is equipped with slider, and a movable rod (17) is fixedly connected to the middle position of the sliding rod (14), one end of the movable rod (17) is located inside the cylinder (18), the movable rod (17) is connected with the cylinder (18) through a piston (19), fixing devices are arranged on the upper side and the lower side of the cylinder (18), one end of the cylinder (18) is fixedly connected with a heat absorbing plate (15), and low-boiling-point liquid (20) is filled in the cylinder (18).
2. The switching power supply casing with high reliability according to claim 1, wherein the limiting device comprises a fixed plate (4) and a spring (5), the fixed plate (4) is fixedly installed on the lower surface of the top plate (2), the spring (5) is uniformly arranged on one side of the fixed plate (4), and the other end of the spring (5) abuts against the side surface of the movable plate (7).
3. The switching power supply casing with high reliability according to claim 1, wherein the movable device comprises a movable guide rail (8), the movable guide rail (8) is symmetrically fixed on the lower surface of the top plate (2), and the movable plate (7) and the guide plate (16) are both in sliding connection with the movable guide rail (8).
4. The switching power supply casing with high reliability according to claim 1, wherein the sliding device comprises a sliding support (12) and a sliding groove (13), the sliding support (12) is fixedly installed at the bottom of the sliding rod (14), the sliding groove (13) is symmetrically arranged on the inner surface of the frame body (1), and the sliding support (12) and the sliding groove (13) are connected in a sliding manner.
5. The switching power supply casing with high reliability according to claim 1, wherein the fixing device comprises a first support (10) and a second support (11), the first support (10) is fixedly installed on the lower surface of the top plate (2), the second support (11) is fixedly installed on the bottom surface of the frame body (1), anti-skid pads (21) are respectively arranged at the positions where the first support (10) and the second support (11) are close to each other, the anti-skid pads (21) are abutted against the outer surface of the cylinder (18), and a locking device is further arranged on one side of the first support (10) and one side of the second support (11).
6. A reliable switching power supply casing according to claim 5, characterized in that the locking device comprises a semicircular rod (23) and a fixing ring (24), the semicircular rod (23) is symmetrically arranged at the position where the first support (10) and the second support (11) are close to each other, and the fixing ring (24) is in threaded connection with the outer surface of the circular rod formed by the two semicircular rods (23).
7. A highly reliable switching power supply casing according to claim 6, characterized in that the first seat (10) and the second seat (11) are provided with a cushion (22) on the side close to the fixing ring (24).
8. A reliable switching power supply casing according to claim 1, characterized in that the low boiling point liquid (20) is liquid trichlorofluoromethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583089.0A CN112701879A (en) | 2020-12-28 | 2020-12-28 | Switching power supply casing that reliability is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583089.0A CN112701879A (en) | 2020-12-28 | 2020-12-28 | Switching power supply casing that reliability is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112701879A true CN112701879A (en) | 2021-04-23 |
Family
ID=75511342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011583089.0A Pending CN112701879A (en) | 2020-12-28 | 2020-12-28 | Switching power supply casing that reliability is high |
Country Status (1)
| Country | Link |
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| CN (1) | CN112701879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803698A (en) * | 2024-03-01 | 2024-04-02 | 潍坊华夏拖拉机制造有限公司 | Final driving device for wheeled tractor |
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| CN107302302A (en) * | 2017-08-18 | 2017-10-27 | 重庆路格科技有限公司 | Switching power unit with heat sinking function |
| DE202017107299U1 (en) * | 2017-11-30 | 2018-03-02 | Listan-Gmbh & Co. Kg | power adapter |
| US20190166728A1 (en) * | 2017-11-29 | 2019-05-30 | Listan Gmbh & Co. Kg | Power supply |
| CN209283645U (en) * | 2018-10-19 | 2019-08-20 | 青海民族大学 | A kind of Internet of Things net safety protective heat dissipation of terminal shell |
| CN210668472U (en) * | 2019-10-18 | 2020-06-02 | 安徽统凌科技新能源有限公司 | Anticorrosive installation shell of lithium cell |
| CN111414064A (en) * | 2020-04-16 | 2020-07-14 | 湖南警察学院 | Self-adaptive protection early warning device for cloud computing equipment |
| CN112000186A (en) * | 2020-08-18 | 2020-11-27 | 汪彩云 | Server information processing equipment based on internet big data |
-
2020
- 2020-12-28 CN CN202011583089.0A patent/CN112701879A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302302A (en) * | 2017-08-18 | 2017-10-27 | 重庆路格科技有限公司 | Switching power unit with heat sinking function |
| US20190166728A1 (en) * | 2017-11-29 | 2019-05-30 | Listan Gmbh & Co. Kg | Power supply |
| DE202017107299U1 (en) * | 2017-11-30 | 2018-03-02 | Listan-Gmbh & Co. Kg | power adapter |
| CN209283645U (en) * | 2018-10-19 | 2019-08-20 | 青海民族大学 | A kind of Internet of Things net safety protective heat dissipation of terminal shell |
| CN210668472U (en) * | 2019-10-18 | 2020-06-02 | 安徽统凌科技新能源有限公司 | Anticorrosive installation shell of lithium cell |
| CN111414064A (en) * | 2020-04-16 | 2020-07-14 | 湖南警察学院 | Self-adaptive protection early warning device for cloud computing equipment |
| CN112000186A (en) * | 2020-08-18 | 2020-11-27 | 汪彩云 | Server information processing equipment based on internet big data |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803698A (en) * | 2024-03-01 | 2024-04-02 | 潍坊华夏拖拉机制造有限公司 | Final driving device for wheeled tractor |
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