Programmable ac power supply protective enclosure for easy installation

Abstract

The utility model discloses a kind of easily installed programmable ac power supply protective shell, including shell and shell cover, the shell cover is sleeved in the outer mouth place at shell top, the shell is externally installed with connecting assembly, the connecting assembly includes the fixed connection of two extension plates one in the middle position of shell two sides outer wall, one vertical setting screw rod one is rotatably connected in the inside of two extension plates one, two screw rod one outside is all screw thread connection with one compression frame, two extension plates one top outer wall are all fixedly connected with two vertical setting limit rods, two compression frames are respectively slidably sleeved in the outside of adjacent two limit rods, two screw rod one bottom one end is all coaxially fixed with one bevel gear one, the utility model is fixed on shell by being set with connecting assembly, the circuit board and shell cover of power supply can be quickly, it is favorable to improve the installation efficiency of shell, and need not additional help other tools to operate, operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of power supply housing technology, specifically to a programmable AC power supply protective housing that is easy to install. Background Technology

[0002] A programmable AC power supply is a power supply device that can output adjustable AC voltage, frequency and other parameters. It breaks through the limitations of traditional fixed output AC power supplies and provides a highly flexible and precise power supply solution for the testing, research and development and production of electronic equipment.

[0003] A search revealed a utility model patent with Chinese patent publication number CN215379668U, which discloses a programmable AC power supply with filtering and heat dissipation effect. The programmable AC power supply body has a first heat dissipation hole on one side wall, a frame inside the heat dissipation hole, three filter plates inside the frame, a groove on the inner bottom plate of the programmable AC power supply body, a second heat dissipation hole at the bottom of the groove, a cooling fan installed in the groove, and a heat dissipation box on the top of the cooling fan.

[0004] As mentioned above, the upper and lower covers of the AC power supply casing are fixed with 4-8 screws. Therefore, the disassembly and assembly process not only takes a long time, but also requires tools, making it inconvenient and leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a programmable AC power supply protective enclosure that is easy to install, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a programmable AC power supply protective housing that is easy to install, comprising a housing and a cover. The cover is fitted onto the top outer opening of the housing. A connecting assembly is installed on the outside of the housing. The connecting assembly includes two extension plates fixedly connected to the middle of the outer walls on both sides of the housing. Each of the two extension plates is rotatably connected to a vertically arranged lead screw. Each of the two lead screws is threadedly connected to a clamping frame. Each of the two extension plates is fixedly connected to two vertically arranged limiting rods on the top outer walls. The two clamping frames are slidably fitted onto the outside of two adjacent limiting rods. Each of the two lead screws has a bevel gear fixed coaxially at one bottom end. The ends of the two clamping frames that are close to each other are located on the top of the cover. A clamping structure is installed inside the housing.

[0007] As a further preferred embodiment of this technical solution, the clamping structure includes a guide groove opened on the inner wall of the bottom of the housing. A horizontally arranged bidirectional lead screw is rotatably connected inside the guide groove. A holding rack is threaded to both ends of the bidirectional lead screw. One bottom end of each of the two holding racks is slidably connected inside the guide groove. A bevel gear II is coaxially fixed to both ends of the bidirectional lead screw. The two bevel gear IIs respectively mesh with two bevel gear I.

[0008] The circuit board and cover of the power supply can be quickly fixed to the housing, which improves the installation efficiency of the housing and does not require any additional tools, making operation more convenient. By driving the double-acting screw to rotate inside the housing through the handle, the two holding racks are driven to move closer to each other along the guide groove, and the circuit board is clamped. The hooks on the top of the holding racks can also restrict the top position of the circuit board. The second bevel gear outside the double-acting screw will rotate synchronously. The second bevel gear drives the first bevel gear to rotate through meshing, and the first screw connected to the two also begins to rotate. The two clamping racks are driven by the two screws to move downward along the limit rod. Under the pressure of the clamping racks, the cover will be tightly pressed against the outside of the housing.

[0009] As a further preferred embodiment of this technical solution, a support assembly is installed on the outside of the housing. The support assembly includes four universal wheels installed at the four corners of the bottom outer wall of the housing. Two horizontally arranged extension plates are fixedly connected to the outer walls on both sides of the housing. A connecting rod is slidably inserted into each of the four extension plates. The bottom end of each of the four connecting rods is fixedly connected to the same support ring.

[0010] As a further preferred embodiment of this technical solution, each of the two extension plates is slidably inserted with a limiting card at both ends. A horizontally arranged spring is fixedly connected to the inner wall of one end of each limiting card. The ends of the two springs that are far apart from each other are fixedly connected to the two extension plates. Two matching slots are opened on the outside of the two connecting rods corresponding to the positions of the two limiting cards.

[0011] If the power supply does not need to be moved, grasp the two limit clips and pull them outwards. The springs will be compressed and shortened, and the two restricted connecting rods will no longer be restricted. Lift the power supply upwards, and under the action of gravity, the connecting rods and support rings will move downwards. When the slot at the top of the connecting rods is close to the limit clips, release the limit clips. The springs will then drive the limit clips to insert into the slots at the top, and the extension plate and connecting rods will be connected. At this time, only the support ring is in contact with the external tabletop, ensuring that the power supply will not move arbitrarily.

[0012] As a further preferred embodiment of this technical solution, the limiting card has an arc-shaped edge on one end of its insertion into the connecting rod slot.

[0013] As a further preferred embodiment of this technical solution, the thread helix angle of the external thread of the lead screw is less than the equivalent friction angle.

[0014] As a further preferred embodiment of this technical solution, each of the two holding racks has several hooks on its top outer wall, and the hooks are located exactly on the top of the power circuit board.

[0015] This utility model provides a programmable AC power supply protective enclosure that is easy to install, and has the following features:

[0016] Beneficial effects:

[0017] (1) By setting up a connecting component, the circuit board and the cover of the power supply can be quickly fixed on the housing, which is beneficial to improve the installation efficiency of the housing. Moreover, no additional tools are needed for operation, making operation more convenient. By driving the double-acting screw to rotate inside the housing through the handle, the two holding racks can be driven to move closer to each other along the guide groove. The circuit board will be clamped, and the hook on the top of the holding rack can also restrict the top position of the circuit board. The bevel gear two outside the double-acting screw will rotate synchronously. The bevel gear two drives the bevel gear one to rotate through meshing. The screw one connected to the two also begins to rotate. The two clamping racks are driven by the two screws one to move downward along the limiting rod. Under the pressure of the clamping racks, the cover will be tightly pressed against the outside of the housing.

[0018] (2) By setting up a support component, if the power supply does not need to move, grab the two limit cards and pull them outward. The spring is compressed and shortened, and the two restricted connecting rods are no longer restricted. Lift the power supply upward. Under the action of gravity, the connecting rods and the support ring move downward. When the slot at the top of the connecting rod is close to the limit card, release the restriction of the limit card. The spring can then drive the limit card to be inserted into the slot at the top. The extension plate 2 and the connecting rod will be connected. At this time, only the support ring is in contact with the external tabletop, ensuring that the power supply will not move arbitrarily. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0023] In the diagram: 1. Shell; 2. Shell cover; 3. Connecting assembly; 4. Support assembly; 301. Extension plate one; 302. Lead screw one; 303. Limiting rod; 304. Pressing frame; 305. Bevel gear one; 306. Guide groove; 307. Two-way lead screw; 308. Container rack; 309. Bevel gear two; 401. Caster wheel; 402. Extension plate two; 403. Connecting rod; 404. Support ring; 405. Limiting clip; 406. Spring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] This utility model provides a technical solution: such as Figure 2 and Figure 4 As shown in this embodiment, a programmable AC power supply protective housing that is easy to install includes a housing 1 and a cover 2. The cover 2 is fitted onto the top outer opening of the housing 1. A connecting assembly 3 is installed on the outside of the housing 1. The connecting assembly 3 includes two extension plates 301 fixedly connected to the middle of the outer walls on both sides of the housing 1. A vertically arranged lead screw 302 is rotatably connected inside each of the two extension plates 301. A clamping frame 304 is threadedly connected to the outside of each of the two lead screws 302. Two vertically arranged limiting rods 303 are fixedly connected to the top outer walls of each of the two extension plates 301. The two clamping frames 304 are slidably fitted onto the outside of two adjacent limiting rods 303. A bevel gear 305 is coaxially fixed at one bottom end of each of the two lead screws 302. The ends of the two clamping frames 304 that are close to each other are located at the top of the cover 2. A clamping structure is installed inside the housing 1.

[0026] The clamping structure includes a guide groove 306 opened on the inner wall of the bottom of the housing 1. A horizontally arranged bidirectional lead screw 307 is rotatably connected inside the guide groove 306. A holding rack 308 is threadedly connected to the threaded ends of both ends of the bidirectional lead screw 307. One end of the bottom of each of the two holding racks 308 is slidably connected inside the guide groove 306. A bevel gear 309 is coaxially fixed at both ends of the bidirectional lead screw 307. The two bevel gears 309 mesh with two bevel gears 305 respectively.

[0027] By driving the double-acting screw 307 to rotate inside the housing 1, rotating the double-acting screw 307 will drive the two holding racks 308 to move closer to each other along the guide groove 306, and the circuit board will be clamped. The hooks on the top of the holding racks 308 can also restrict the top position of the circuit board. The bevel gear 309 outside the double-acting screw 307 will rotate synchronously. The bevel gear 309 drives the bevel gear 305 to rotate through meshing. The screw 302 connected to the two also starts to rotate. The two clamping racks 304 are driven by the two screws 302 to move downward along the limiting rod 303. Under the pressure of the clamping racks 304, the cover 2 will be tightly pressed against the outside of the housing 1.

[0028] like Figure 2 and Figure 3 As shown, a support assembly 4 is installed on the outside of the housing 1. The support assembly 4 includes four universal wheels 401 installed at the four corners of the bottom outer wall of the housing 1. Two horizontally arranged extension plates 402 are fixedly connected to the outer walls on both sides of the housing 1. A connecting rod 403 is slidably inserted into the four extension plates 402. The same support ring 404 is fixedly connected to one end of the bottom of the four connecting rods 403.

[0029] Each of the two extension plates 402 has a slidably inserted limit card 405 at its end. A horizontally set spring 406 is fixedly connected to the inner wall of one end of each limit card 405. The ends of the two springs 406 that are far apart from each other are fixedly connected to the two extension plates 402 respectively. Two matching slots are opened on the outside of the two connecting rods 403 corresponding to the positions of the two limit cards 405.

[0030] If the power supply does not need to be moved, grasp the two limit clips 405 and pull them outward. The spring 406 is compressed and shortened, and the two restricted connecting rods 403 are no longer restricted. Lift the power supply upward, and under the action of gravity, the connecting rods 403 and the support ring 404 move downward. When the slot at the top of the connecting rod 403 is close to the limit clip 405, release the restriction of the limit clip 405. The spring 406 can then drive the limit clip 405 to insert into the slot at the top. The extension plate 2 402 and the connecting rod 403 will then be connected. At this time, only the support ring 404 is in contact with the external tabletop, ensuring that the power supply will not move arbitrarily.

[0031] like Figure 3 As shown, the limit card 405 is inserted into the slot of the connecting rod 403, and the edge of one end of the limit card 405 is provided with an arc shape, which makes the process of inserting the limit card 405 into the slot more convenient.

[0032] like Figure 4 As shown, the thread helix angle of the external thread of the lead screw 302 is less than the equivalent friction angle, giving it a self-locking property, thereby ensuring that the position of the clamping bracket 304 connected to it will not change during use.

[0033] like Figure 2 As shown, both holding racks 308 have several hooks on their top outer walls, and the hooks are located at the top of the power circuit board.

[0034] This utility model provides a programmable AC power supply protective housing that is easy to install. The specific working principle is as follows:

[0035] When the device is in operation, the circuit board with the power supply and components is placed on top of the two racks 308, and the display and control panel are attached to the inner wall of the housing 1. The buttons and screen on the outside of the housing 1 also extend outward from the through hole at one end of the housing 1, while the heat sink can be installed at the other end of the housing 1. Then, the cover 2 is inserted into the bottom of the clamping frame 304 and snapped onto the outside of the housing 1. By driving the double-acting screw 307 to rotate inside the housing 1, rotating the double-acting screw 307 will drive the two holding racks 308 to move closer to each other along the guide groove 306, and the circuit board will be clamped. The hooks on the top of the holding racks 308 can also restrict the top position of the circuit board. The bevel gear 309 outside the double-acting screw 307 will rotate synchronously. The bevel gear 309 drives the bevel gear 305 to rotate through meshing. The screw 302 connected to the two also starts to rotate. The two clamping racks 304 are driven by the two screws 302 to move downward along the limiting rod 303. Under the pressure of the clamping racks 304, the cover 2 will be tightly pressed against the outside of the housing 1. If the power supply does not need to be moved, grasp the two limit clips 405 and pull them outward. The spring 406 is compressed and shortened, and the two restricted connecting rods 403 are no longer restricted. Lift the power supply upward, and under the action of gravity, the connecting rods 403 and the support ring 404 move downward. When the slot at the top of the connecting rod 403 is close to the limit clip 405, release the restriction of the limit clip 405. The spring 406 can then drive the limit clip 405 to insert into the slot at the top. The extension plate 2 402 and the connecting rod 403 will then be connected. At this time, only the support ring 404 is in contact with the external tabletop, ensuring that the power supply will not move arbitrarily.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A programmable AC power supply protective enclosure that is easy to install, comprising a housing (1) and a cover (2), characterized in that: The cover (2) is fitted onto the top outer opening of the housing (1). A connecting assembly (3) is installed on the outside of the housing (1). The connecting assembly (3) includes two extension plates (301) fixedly connected to the middle of the outer walls on both sides of the housing (1). A vertically arranged lead screw (302) is rotatably connected inside each of the two extension plates (301). A clamping frame (304) is threadedly connected to the outside of each of the two lead screws (302). Two vertically arranged limiting rods (303) are fixedly connected to the top outer walls of each of the two extension plates (301). The two clamping frames (304) are slidably fitted onto the outside of the two adjacent limiting rods (303). A bevel gear (305) is coaxially fixed at one bottom end of each of the two lead screws (302). The ends of the two clamping frames (304) that are close to each other are located on the top of the cover (2). A clamping structure is installed inside the housing (1).

2. The programmable AC power supply protective enclosure for easy installation according to claim 1, characterized in that: The clamping structure includes a guide groove (306) opened on the inner wall of the bottom of the housing (1). A horizontally arranged bidirectional lead screw (307) is rotatably connected inside the guide groove (306). A holding rack (308) is threaded to both ends of the bidirectional lead screw (307). One end of the bottom of each of the two holding racks (308) is slidably connected inside the guide groove (306). A bevel gear II (309) is coaxially fixed at both ends of the bidirectional lead screw (307). The two bevel gear II (309) mesh with two bevel gear I (305) respectively.

3. The programmable AC power supply protective enclosure for easy installation according to claim 1, characterized in that: The housing (1) is equipped with a support assembly (4). The support assembly (4) includes four casters (401) installed at the four corners of the bottom outer wall of the housing (1). Two horizontally arranged extension plates (402) are fixedly connected to the outer walls on both sides of the housing (1). A connecting rod (403) is slidably inserted into each of the four extension plates (402). The bottom end of the four connecting rods (403) is fixedly connected to the same support ring (404).

4. The programmable AC power supply protective enclosure for easy installation according to claim 3, characterized in that: Each of the two extension plates (402) has a limiting card (405) slidably inserted at its end. Each limiting card (405) has a horizontally arranged spring (406) fixedly connected to the inner wall of one end. The ends of the two springs (406) that are far apart from each other are fixedly connected to the two extension plates (402). The two connecting rods (403) corresponding to the positions of the two limiting cards (405) each have two matching slots on their outer sides.

5. The programmable AC power supply protective enclosure for easy installation according to claim 4, characterized in that: The limiting card (405) is inserted into the slot of the connecting rod (403), and one end of the edge is provided with an arc-shaped edge.

6. The programmable AC power supply protective enclosure for easy installation according to claim 1, characterized in that: The thread helix angle of the external thread of the lead screw (302) is less than the equivalent friction angle.

7. The programmable AC power supply protective enclosure for easy installation according to claim 2, characterized in that: Both of the aforementioned holding racks (308) have several hooks on their top outer walls, and the hooks are located exactly on top of the power circuit board.

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