CN114650686A - Switching power supply suitable for humid environment - Google Patents
Switching power supply suitable for humid environment Download PDFInfo
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- CN114650686A CN114650686A CN202210452294.6A CN202210452294A CN114650686A CN 114650686 A CN114650686 A CN 114650686A CN 202210452294 A CN202210452294 A CN 202210452294A CN 114650686 A CN114650686 A CN 114650686A
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- wall
- power supply
- switching power
- closing plate
- fixed connection
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- 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
- H05K5/0217—Mechanical details of casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catching Or Destruction (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a switching power supply suitable for a humid environment, and relates to the technical field of power supply circuits. This switching power supply suitable for under humid environment, which comprises a housin, casing lateral wall slidable mounting has the closing plate, closing plate inner wall and first telescopic link top fixed connection, first telescopic link bottom and lifting board upper surface fixed connection, closing plate inner wall and first reset spring top fixed connection, first reset spring bottom and lifting board upper surface fixed connection, the closing plate is provided with fixed subassembly and filter screen section of thick bamboo joint through its inner wall. This switching power supply suitable for under humid environment through being provided with the filter screen section of thick bamboo that can place water-absorbent resin for when the inside air of casing carries out the UNICOM with the external world, moisture in the outside ambient air can be absorbed by water-absorbent resin, when guaranteeing the inside drying of casing, makes the inside air of casing can link to each other with the external world, improves device's radiating effect.
Description
Technical Field
The invention relates to the technical field of power supply circuits, in particular to a switching power supply suitable for a humid environment.
Background
The switching mode power supply, also called switching power supply, switching converter, is a high frequency electric energy conversion device, which is a kind of power supply, and its function is to convert a level voltage into a voltage or current required by the user terminal through different forms of architectures, the input of the switching power supply is mostly an ac power supply or a dc power supply, and the output is mostly equipment requiring a dc power supply, so the switching power supply plays a role of converting the voltage and the current between the two, therefore, the switching power supply is widely used in life.
The conventional switching power supply has a wide application range, and when the switching power supply is applied to an external natural environment or a humid environment in a living area, the moisture content in the air is good, and meanwhile, the switching power supply needs to be communicated with the external environment due to heat generated by the working of the switching power supply so as to enhance the heat dissipation effect of the device, so that the exposed part of the switching power supply is easily corroded by the humid air, the power transmission efficiency of the switching power supply is reduced if the heat is light, serious accidents such as fire disasters are easily caused if the heat is heavy, a relatively high potential safety hazard is realized, and the applicability of the switching power supply is reduced; in view of this, we have devised a switching power supply suitable for use in humid environments.
Disclosure of Invention
Technical problem to be solved
In view of the deficiencies of the prior art, the present invention provides a switching power supply suitable for use in a humid environment, which solves the problems mentioned in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a switching power supply suitable for under humid environment, includes the casing, casing outer wall fixed mounting has the side ear, shells inner wall fixed mounting has power module, shells inner wall fixed mounting has the connector, casing lateral wall slidable mounting has the closing plate, shells inner wall is provided with protecting against shock subassembly, closing plate inner wall and first telescopic link top fixed connection, fixed surface is connected on first telescopic link bottom and the lifting board, closing plate inner wall and first reset spring top fixed connection, fixed surface is connected on first reset spring bottom and the lifting board, the inside chucking subassembly that is provided with of lifting board, the closing plate is provided with fixed subassembly and filter screen section of thick bamboo joint through its inner wall.
Preferably, the impact-proof assembly comprises a second telescopic rod, the right end of the second telescopic rod is fixedly connected with the outer wall of the left side of the connecting sliding block, the inner wall of the shell is fixedly connected with the left end of the first-level buffer spring, and the right end of the first-level buffer spring is fixedly connected with the outer wall of the left side of the connecting sliding block.
Preferably, fixed surface is connected under shells inner wall and the fixed buffer block, fixed buffer block right side outer wall and third telescopic link left end fixed connection, third telescopic link right-hand member and contact block left side outer wall fixed connection, fixed buffer block right side outer wall and second grade buffer spring left side outer wall fixed connection, second grade buffer spring right-hand member and contact block left side outer wall fixed connection.
Preferably, the clamping assembly comprises a sliding rod, an arc pressing block is fixedly mounted at the bottom end of the sliding rod, a baffle penetrates through the sliding rod, the baffle is fixedly connected with the top end of the sliding rod, the lower surface of the baffle is fixedly connected with the top end of a clamping spring, the bottom end of the clamping spring is fixedly connected with the inner wall of a lifting plate, and a guide rod is fixedly mounted on the upper surface of the arc pressing block.
Preferably, the inner wall of the lifting plate is provided with a sliding groove with the size equal to that of the guide rod.
Preferably, the fixing component comprises a button, a first toothed bar penetrates through the button, the end part of the first toothed bar is fixedly connected with the button, the side wall of the button is fixedly connected with the left end of a second reset spring, and the right end of the second reset spring is fixedly connected with the outer wall of the closing plate.
Preferably, the inner wall of the closed plate is rotatably provided with a first gear, the first gear is coaxially and fixedly provided with a second gear, the inner wall of the closed plate is slidably connected with a second rack bar, and the end part of the second rack bar is fixedly provided with a limit tooth.
Preferably, the outer wall of the filter screen cylinder is provided with a limiting groove with the size equal to that of the limiting tooth.
Preferably, an annular placing groove capable of placing the water-absorbent resin is formed in the filter screen cylinder.
(III) advantageous effects
The invention provides a switching power supply suitable for a humid environment. The method has the following beneficial effects:
(1) this switching power supply suitable for under humid environment is when using, through being provided with the filter screen section of thick bamboo that can place water absorbent resin for when the inside air of casing carries out the UNICOM with the external world, moisture in the external environment air can be absorbed by water absorbent resin, when guaranteeing the inside dry of casing, makes the inside air of casing can link to each other with the external world, improves the radiating effect of device.
(2) This switching power supply suitable for under humid environment when using, through pressing the button to closing plate one side, cooperation second gear for the second gear rack drives spacing tooth and moves on the horizontal direction along the closing plate inner wall, and then makes spacing tooth break away from the spacing groove that filter screen section of thick bamboo outer wall was seted up, and the staff can outwards take out a filter screen section of thick bamboo this moment, makes things convenient for the staff regularly to change and clean the inside water-absorbent resin of filter screen section of thick bamboo, with the inside drying effect of assurance casing.
(3) This switching power supply suitable for under the humid environment when using, through being provided with the chucking subassembly for the arc is pressed the briquetting and is pressed from both sides tightly the electric wire, avoids the device to receive the damage owing to external dragging after finishing connecting, presses the sponge layer that briquetting lower surface set up through the arc simultaneously, guarantees that the casing is inside can not get into humid air, and then guarantees the safe operation of device.
(4) This switching power supply suitable for under the humid environment when using, through being provided with the protecting against shock subassembly, when the closing plate receives the impact of the splash or the toy in the external environment, cooperation one-level buffer spring and second grade buffer spring provide better buffering protection effect for the closing plate, and then effectual protection device avoids the impact influence that people or toy caused in the external environment, guarantees the even running of device.
(5) This be applicable to switching power supply under the humid environment when using, through being provided with the guide bar for the arc is pressed the briquetting and is kept all the time along the motion of closed plate outer wall direction, reduces the wearing and tearing between slide bar and the lifting board.
(6) This switching power supply suitable for under humid environment when using, when needs use external connection equipment to be connected with the connector, through upwards promoting along the closed board outer wall and lift the board, and then make and lift and expose the gap between board and the closed board to make things convenient for the staff to link to each other external connection device and connector, after the connection finishes, the staff puts down and lifts the board, improves staff's installation rate, reduces staff's working strength.
Drawings
FIG. 1 is a schematic structural view of the main body of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view in elevation and section of the closure panel of the present invention;
FIG. 4 is a schematic view of the enlarged portion of the area A in FIG. 2 according to the present invention;
FIG. 5 is a schematic enlarged view of a portion of the area B in FIG. 2 according to the present invention;
FIG. 6 is a schematic view of the construction of the lift plate of the present invention;
fig. 7 is a schematic structural diagram of a filter screen cartridge of the present invention.
In the figure: 1. a housing; 2. a lateral ear; 3. a power supply module; 4. a connector; 5. a closing plate; 6. an impact-resistant component; 61. a second telescopic rod; 62. connecting the sliding block; 63. a primary buffer spring; 64. fixing the buffer block; 65. a third telescopic rod; 66. a contact slider; 67. a secondary buffer spring; 7. a first telescopic rod; 8. lifting the plate; 9. a first return spring; 10. a clamping assembly; 101. a slide bar; 102. an arc pressing block; 103. a baffle plate; 104. a chucking spring; 105. a guide bar; 11. a fixing assembly; 111. a button; 112. a first rack bar; 113. a second return spring; 114. a first gear; 115. a second gear; 116. a second rack bar; 117. limiting teeth; 12. a filter screen cylinder.
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.
Referring to fig. 1-7, the present invention provides a technical solution: a switching power supply suitable for a humid environment comprises a shell 1, side lugs 2 are fixedly mounted on the outer wall of the shell 1, the switching power supply is convenient to install by arranging a plurality of groups of side lugs 2, a power supply module 3 is fixedly mounted on the inner wall of the shell 1, connectors 4 are fixedly mounted on the inner wall of the shell 1, the connectors 4 are arranged on two sides of the power supply module 3, the switching power supply is connected with an output end and an input end, a closing plate 5 is slidably mounted on the side wall of the shell 1, the closing plate 5 can move along the inner wall of the shell 1 in the horizontal direction, an impact-proof assembly 6 is arranged on the inner wall of the shell 1, the impact-proof assembly 6 comprises a second telescopic rod 61, the right end of the second telescopic rod 61 is fixedly connected with the outer wall of the left side of a connecting slide block 62, the upper surface of the connecting slide block 62 is fixedly connected with the lower surface of the closing plate 5, and the inner wall of the shell 1 is fixedly connected with the left end of a first-level buffer spring 63, one-level buffer spring 63 right-hand member and link block 62 left side outer wall fixed connection, one-level buffer spring 63 cup joints in the second telescopic link 61 outside, through being provided with one-level buffer spring 63, when closing plate 5 received the impact of the splash or the toy among the external environment, cooperation link block 62 provides certain buffering protection effect for closing plate 5 on the horizontal direction.
In this embodiment, the inner wall of the casing 1 is fixedly connected to the lower surface of the fixed buffer block 64, the right outer wall of the fixed buffer block 64 is fixedly connected to the left end of the third telescopic rod 65, the right end of the third telescopic rod 65 is fixedly connected to the left outer wall of the contact slider 66, the lower surface of the contact slider 66 is slidably connected to the inner wall of the casing 1, the right outer wall of the fixed buffer block 64 is fixedly connected to the left outer wall of the second-stage buffer spring 67, the right end of the second-stage buffer spring 67 is fixedly connected to the left outer wall of the contact slider 66, and the second-stage buffer spring 67 is sleeved on the outer side of the third telescopic rod 65, so that when the closing plate 5 is subjected to a large impact force, the connecting slider 62 moves leftwards along the inner wall of the casing 1 to a certain distance in the horizontal direction, the right outer wall of the contact slider 66 contacts with the left outer wall of the connecting slider 62, and cooperates with the second-stage buffer spring 67 to provide a further buffer protection effect for the closing plate 5, thereby effectively protecting the device from impact influence caused by human or small animals in the external environment and ensuring the stable operation of the device.
In the embodiment, the inner wall of the closed plate 5 is fixedly connected with the top end of the first telescopic rod 7, the bottom end of the first telescopic rod 7 is fixedly connected with the upper surface of the lifting plate 8, the lifting plate 8 is slidably connected with the inner wall of the closed plate 5, the side wall of the lifting plate 8 is provided with the strip-shaped limiting strip, meanwhile, the inner wall of the closed plate 5 is provided with the sliding groove with the size equal to that of the strip-shaped limiting strip, so that the lifting plate 8 can move in the vertical direction along the inner wall of the closed plate 5, the inner wall of the closed plate 5 is fixedly connected with the top end of the first reset spring 9, the bottom end of the first reset spring 9 is fixedly connected with the upper surface of the lifting plate 8, the first reset spring 9 is sleeved outside the first telescopic rod 7, after a worker releases the lifting plate 8, the lifting plate 8 moves downwards in the vertical direction along the inner wall of the closed plate 5 due to the elastic force of the first reset spring 9, so that the lifting plate 8 is attached to the bottom of the closed plate 5, so as to realize the fixed clamping of the electric wire of the external connection equipment, the inside of the lifting plate 8 is provided with two groups of clamping components 10, the two groups of clamping components 10 are symmetrically arranged inside the lifting plate 8 and the closing plate 5 by taking the lower surface of the lifting plate 8 as a symmetrical plane in an initial state, and the clamping sealing effect of the device on the electric wire of the external equipment is further improved by arranging the two groups of clamping components 10, the clamping components 10 comprise a sliding rod 101, the inner wall of the lifting plate 8 is in sliding connection with the sliding rod 101, the bottom end of the sliding rod 101 is fixedly provided with an arc pressing block 102, the lower surface of the arc pressing block 102 is provided with a sponge layer, the sealing performance of a gap between the lifting plate 8 and the closing plate 5 when the arc pressing block 102 presses the electric wire is ensured, the moist air in the external environment is prevented from entering the inside of the shell 1, the sliding rod 101 penetrates through a baffle 103, and the baffle 103 is fixedly connected with the top end of the sliding rod 101, the lower surface of the baffle 103 is fixedly connected with the top end of the clamping spring 104, the bottom end of the clamping spring 104 is fixedly connected with the inner wall of the lifting plate 8, the clamping spring 104 is sleeved outside the sliding rod 101, when external connecting equipment is required to be connected with the connector 4, the lifting plate 8 is pushed upwards along the outer wall of the closing plate 5, and a gap is exposed between the lifting plate 8 and the closing plate 5, so that a worker can conveniently connect an external connecting device with the connector 4, after the connection is finished, the worker puts down the lifting plate 8, and through the clamping assembly 10, the arc-shaped pressing block 102 clamps the electric wire, the connector 4 is prevented from being damaged due to external pulling after the connection is finished, and meanwhile, through the sponge layer arranged on the lower surface of the arc-shaped pressing block 102, the situation that moist air cannot enter the interior of the shell 1 is ensured, and the safe operation of the device is ensured, the guide rod 105 is fixedly mounted on the upper surface of the arc pressing block 102, the inner wall of the lifting plate 8 is provided with a sliding groove with the size equal to that of the guide rod 105, and the guide rod 105 is arranged, so that the arc pressing block 102 always moves along the direction of the outer wall of the closing plate 5, and abrasion between the sliding rod 101 and the lifting plate 8 is reduced.
In this embodiment, the closing plate 5 is provided with a fixing component 11 through the inner wall thereof to be clamped with a filter screen cylinder 12, the filter screen cylinder 12 is internally provided with an annular placing groove for placing water-absorbent resin, when the air inside the casing 1 is communicated with the outside, the moisture in the air of the outside environment can be absorbed by the water-absorbent resin, so as to ensure the drying of the inside of the casing 1, and simultaneously, the air inside the casing 1 can be connected with the outside, thereby improving the heat dissipation effect of the device, the fixing component 11 comprises a button 111, the button 111 penetrates through a first toothed bar 112, the end part of the first toothed bar 112 is fixedly connected with the button 111, the button 111 is pressed to enable the first toothed bar 112 to move in the horizontal direction along the inner wall of the closing plate 5, the side wall of the button 111 is fixedly connected with the left end of a second return spring 113, and the right end of the second return spring 113 is fixedly connected with the outer wall of the closing plate 5, the second reset spring 113 is sleeved outside the first rack bar 112, the inner wall of the closing plate 5 is rotatably provided with a first gear 114, the first gear 114 is meshed with the first rack bar 112, the first gear 114 is coaxially and fixedly provided with a second gear 115, the inner wall of the closing plate 5 is connected with a second rack bar 116 in a sliding manner, the second rack bar 116 is meshed with the second gear 115, the end part of the second rack bar 116 is fixedly provided with a limit tooth 117, the outer wall of the filter screen cylinder 12 is provided with a limit groove with the size equal to that of the limit tooth 117, the limit tooth 117 moves along the inner wall of the closing plate 5 in the horizontal direction by pressing the button 111 to one side of the closing plate 5 and matching with the second gear 115, so that the limit tooth 117 is separated from the limit groove formed on the outer wall of the filter screen cylinder 12, at the moment, a worker can pull out the filter screen cylinder 12, and the worker can replace and clean the water-absorbent resin inside the filter screen cylinder 12 regularly, to ensure a drying effect inside the housing 1.
The working principle is as follows: when the switching power supply suitable for the humid environment is used, the first-stage buffer spring 63 is arranged, when the closing plate 5 is impacted by splashes or small animals in the external environment, the connecting slide block 62 is matched to provide a certain buffer protection effect for the closing plate 5 in the horizontal direction, when the closing plate 5 is impacted by a large impact force, the connecting slide block 62 moves leftwards to a certain distance in the horizontal direction along the inner wall of the shell 1, the outer wall of the right side of the contact slide block 66 is contacted with the outer wall of the left side of the connecting slide block 62, and a further buffer protection effect is provided for the closing plate 5 by matching with the second-stage buffer spring 67, so that the device is effectively protected from impact influence caused by human or small animals in the external environment, the stable operation of the device is ensured, when external connecting equipment is required to be connected with the connecting head 4, the lifting plate 8 is upwards pushed along the outer wall of the closing plate 5, and then the gap is exposed between the lifting plate 8 and the closed plate 5, so that the external connecting device can be conveniently connected with the connector 4 by a worker, after the connection is finished, the worker puts down the lifting plate 8, the clamping assembly 10 is arranged, the arc pressing block 102 can clamp the electric wire, the damage to the connector 4 caused by the external pulling after the connection is finished is avoided, meanwhile, the damp air can not enter the shell 1 through the sponge layer arranged on the lower surface of the arc pressing block 102, the safe operation of the device is ensured, the arc pressing block 102 can always move along the direction of the outer wall of the closed plate 5 through the guide rod 105, the abrasion between the sliding rod 101 and the lifting plate 8 is reduced, the moisture in the air in the shell 1 can be absorbed by the water-absorbing resin when the air in the shell 1 is communicated with the outside through the filter screen cylinder 12 capable of placing the water-absorbing resin, when guaranteeing the inside drying of casing 1, make the inside air of casing 1 can link to each other with the external world, the radiating effect of improvement device is through pressing button 111 to closing plate 5 one side, cooperation second gear 115, make second ratch 116 drive spacing tooth 117 and move on the horizontal direction along closing plate 5 inner wall, and then make spacing tooth 117 break away from the spacing groove that filter screen section of thick bamboo 12 outer wall was seted up, the staff can outwards take out filter screen section of thick bamboo 12 this moment, make things convenient for the staff to regularly change and clean the inside water-absorbent resin of filter screen section of thick bamboo 12, in order to guarantee the inside drying effect of casing 1.
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 (9)
1. A switching power supply suitable for use in a humid environment, comprising a casing (1), characterized in that: the outer wall of the shell (1) is fixedly provided with a side lug (2), the inner wall of the shell (1) is fixedly provided with a power module (3), the inner wall of the shell (1) is fixedly provided with a connector (4), the side wall of the shell (1) is provided with a closing plate (5) in a sliding way, an anti-impact component (6) is arranged on the inner wall of the shell (1), the inner wall of the closing plate (5) is fixedly connected with the top end of a first telescopic rod (7), the bottom end of the first telescopic rod (7) is fixedly connected with the upper surface of the lifting plate (8), the inner wall of the closing plate (5) is fixedly connected with the top end of a first return spring (9), the bottom end of the first return spring (9) is fixedly connected with the upper surface of the lifting plate (8), the lifting plate (8) is internally provided with a clamping assembly (10), and the closing plate (5) is provided with a fixing assembly (11) through the inner wall thereof and is clamped with a filter screen cylinder (12).
2. A switching power supply adapted for use in a wet environment, according to claim 1, wherein: protecting against shock subassembly (6) including second telescopic link (61), second telescopic link (61) right-hand member and link block (62) left side outer wall fixed connection, casing (1) inner wall and one-level buffer spring (63) left end fixed connection, one-level buffer spring (63) right-hand member and link block (62) left side outer wall fixed connection.
3. A switching power supply adapted for use in a wet environment, according to claim 1, wherein: fixed surface is connected under casing (1) inner wall and fixed buffer block (64), fixed buffer block (64) right side outer wall and third telescopic link (65) left end fixed connection, third telescopic link (65) right-hand member and contact slider (66) left side outer wall fixed connection, fixed buffer block (64) right side outer wall and second grade buffer spring (67) left side outer wall fixed connection, second grade buffer spring (67) right-hand member and contact slider (66) left side outer wall fixed connection.
4. A switching power supply adapted for use in a wet environment, according to claim 1, wherein: the clamping assembly (10) comprises a sliding rod (101), an arc pressing block (102) is fixedly mounted at the bottom end of the sliding rod (101), a baffle (103) penetrates through the sliding rod (101), the baffle (103) is fixedly connected with the top end of the sliding rod (101), the lower surface of the baffle (103) is fixedly connected with the top end of a clamping spring (104), the bottom end of the clamping spring (104) is fixedly connected with the inner wall of a lifting plate (8), and a guide rod (105) is fixedly mounted on the upper surface of the arc pressing block (102).
5. The switching power supply according to claim 4, wherein: the inner wall of the lifting plate (8) is provided with a sliding groove with the size equal to that of the guide rod (105).
6. A switching power supply adapted for use in a wet environment, according to claim 1, wherein: fixed subassembly (11) is including button (111), button (111) run through there are first ratch (112), and first ratch (112) tip and button (111) fixed connection, button (111) lateral wall and second reset spring (113) left end fixed connection, second reset spring (113) right-hand member and closing plate (5) outer wall fixed connection.
7. The switching power supply unit according to claim 1, wherein: first gear (114) are installed in the rotation of closing plate (5) inner wall, the coaxial fixed mounting of first gear (114) has second gear (115), closing plate (5) inner wall sliding connection has second rack bar (116), second rack bar (116) tip fixed mounting has spacing tooth (117).
8. The switching power supply unit according to claim 7, wherein: the outer wall of the filter screen cylinder (12) is provided with a limiting groove with the size equal to that of the limiting teeth (117).
9. A switching power supply adapted for use in a wet environment, according to claim 1, wherein: an annular placing groove for placing water-absorbent resin is formed in the filter screen cylinder (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210452294.6A CN114650686B (en) | 2022-04-27 | 2022-04-27 | Switching power supply suitable for humid environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210452294.6A CN114650686B (en) | 2022-04-27 | 2022-04-27 | Switching power supply suitable for humid environment |
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| CN114650686A true CN114650686A (en) | 2022-06-21 |
| CN114650686B CN114650686B (en) | 2023-10-20 |
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| CN210224446U (en) * | 2019-08-13 | 2020-03-31 | 天津市天惠科技有限公司 | Switch suitable for humid environment |
| CN210840434U (en) * | 2019-10-29 | 2020-06-23 | 深圳市晨旭通科技有限公司 | Closed type moisture-proof switch power supply |
| CN210907726U (en) * | 2019-11-25 | 2020-07-03 | 青岛泊为隆机电科技有限公司 | Shaping die for door corner fitting |
| CN212740584U (en) * | 2020-05-22 | 2021-03-19 | 南京玥力机械有限公司 | Safety self-locking elevator protection device |
| CN213646276U (en) * | 2020-10-22 | 2021-07-09 | 无锡锦华焊接科技有限公司 | Movable mainframe box for welding |
| CN214626782U (en) * | 2021-05-07 | 2021-11-05 | 上海兢纬电子科技有限公司 | Switching power supply with good shockproof effect |
| CN216377328U (en) * | 2021-10-19 | 2022-04-26 | 梁家栋 | Lifting device for building engineering construction |
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