Portable programmable AC power supply
By designing an openable protective cover and snap-fit limiting components on the programmable AC power supply, the problem of insufficient portability is solved, achieving both protection and portability of the control panel, making it suitable for frequent movement or outdoor use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN AEROSPACE INTERSTELLAR TECHNOLOGY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing programmable AC power supplies suffer from insufficient protection and cumbersome carrying methods, making them particularly unsuitable for scenarios involving frequent movement or limited space.
A portable, programmable AC power supply was designed, featuring an openable protective cover and a snap-fit limiting component. The protective cover integrates a handle, and the control panel is fully protected by a snap-fit pin and a compression spring, eliminating the need for an additional storage box.
It effectively prevents damage to the control panel during transportation or movement, improves equipment safety and lifespan, while reducing space occupation, making it easy to carry with one hand and suitable for frequent movement or outdoor use.
Smart Images

Figure CN224264842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of programmable AC power supply body, specifically a portable programmable AC power supply. Background Technology
[0002] A programmable AC power supply is a power supply device capable of outputting adjustable voltage, frequency, and waveform. It is widely used in electronic testing, scientific research experiments, and industrial control. Its core function is to control the output parameters through a program to meet the testing requirements of different loads, featuring high precision, high stability, and flexible controllability.
[0003] However, existing programmable AC power supplies still have the following portability issues:
[0004] 1. Insufficient protection: Some products lack protection for the control panel when carried, making the panel susceptible to impact during transportation or movement, affecting the service life and safety of the equipment;
[0005] 2. Bulky carrying method: Although some products use dedicated cases for storage, the cases are large, which increases the burden of carrying and storing them, and is especially unsuitable for application scenarios that require frequent movement or have limited space.
[0006] Therefore, we propose a portable, programmable AC power supply. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] In view of the shortcomings of the prior art, this utility model provides a portable programmable AC power supply with advantages such as protective structure, small space occupation and easy portability, which can effectively solve the problems in the background art.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a portable programmable AC power supply, comprising a programmable AC power supply body, a control panel provided on the upper outer surface of the programmable AC power supply body, a protective cover provided on the upper part of the control panel, a handle fixedly installed in the middle of the upper outer surface of the protective cover, sheet metal blocks fixedly installed on the upper parts of the outer surfaces of both sides of the programmable AC power supply body, a groove provided on one side of the outer surface of the sheet metal block, a second limiting hole provided at the lower end of the outer surfaces of both sides of the sheet metal block, and a first limiting hole provided at the upper end of the outer surfaces of both sides of the sheet metal block, both the first limiting hole and the second limiting hole penetrating into the groove, connecting arms fixedly installed in the middle of the outer surfaces of both ends of the protective cover, a snap-fit limiting component connected to the lower end of the connecting arm, the snap-fit limiting component comprising a slider, a connecting shaft, a mounting hole, a snap-fit pin and a compression spring, and one end of the connecting shaft fixedly connected to the lower end of the connecting arm.
[0011] Preferably, the slider is slidably connected in the groove.
[0012] Preferably, a bearing is provided between the connecting shaft and the slider, and the end of the connecting shaft away from the connecting arm is rotatably connected to the middle of the slider through the bearing.
[0013] Preferably, the mounting holes are formed on the outer surfaces of both ends of the slider, and the compression spring is located in the mounting holes.
[0014] Preferably, one end of the compression spring is fixedly connected to one end of the mounting hole, and the other end of the compression spring is fixedly connected to one end of the outer surface of the snap-fit pin. The outer wall of the snap-fit pin is slidably connected to the mounting hole, and one end of the outer surface of the snap-fit pin is elastically connected to one end of the mounting hole through the compression spring.
[0015] Preferably, one end of the locking pin is detachably locked to both the first limiting hole and the second limiting hole; when the locking pin is locked to the first limiting hole, the protective cover is in the open state and separated from the programmable AC power supply body; when the locking pin is locked to the second limiting hole, the protective cover is in the closed state and completely covers the control panel, and the protective cover is in contact with the upper outer surface of the programmable AC power supply body.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a portable programmable AC power supply with the following advantages:
[0018] 1. This portable programmable AC power supply features an openable protective cover that completely covers the control panel when carried, effectively preventing collisions, avoiding panel damage or accidental touches, and improving the safety and lifespan of the equipment.
[0019] 2. This portable programmable AC power supply features an integrated handle on the protective cover, combined with a snap-fit limiting component, making the overall structure of the power supply compact and easy to carry with one hand. It also eliminates the need for an additional storage box, reducing space usage and making it particularly suitable for scenarios requiring frequent movement or outdoor use. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a portable programmable AC power supply according to the present invention.
[0021] Figure 2 This is a partial structural schematic diagram of a portable programmable AC power supply according to the present invention.
[0022] Figure 3 This is a structural diagram of the protective cover, protrusion, and snap-fit limiting component in a portable programmable AC power supply according to this utility model.
[0023] Figure 4 This is a top cross-sectional view of the snap-fit limiting component in a portable programmable AC power supply according to this utility model.
[0024] In the diagram: 1. Programmable AC power supply body; 2. Control panel; 3. Protective cover; 4. Handle; 5. Sheet metal block; 6. Groove; 7. Connecting arm; 8. Snap-fit limiting component; 9. First limiting hole; 10. Second limiting hole; 11. Slider; 12. Connecting shaft; 13. Mounting hole; 14. Snap-fit pin; 15. Compression spring. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] This embodiment is a portable, programmable AC power supply.
[0027] like Figure 1-4As shown, the device includes a programmable AC power supply body 1. A control panel 2 is provided on the upper outer surface of the programmable AC power supply body 1. A protective cover 3 is provided on the upper part of the control panel 2. A handle 4 is fixedly installed in the middle of the upper outer surface of the protective cover 3. Sheet metal blocks 5 are fixedly installed on the upper part of the outer surfaces on both sides of the programmable AC power supply body 1. A groove 6 is provided on one side of the outer surface of the sheet metal block 5. A second limiting hole 10 is provided at the lower end of the outer surfaces on both sides of the sheet metal block 5. A first limiting hole 9 is provided at the upper end of the outer surfaces on both sides of the sheet metal block 5. Both the first limiting hole 9 and the second limiting hole 10 pass through the groove 6. Connecting arms 7 are fixedly installed in the middle of the outer surfaces at both ends of the protective cover 3. A snap-fit limiting component 8 is connected to the lower end of the connecting arm 7. The snap-fit limiting component 8 includes a slider 11, a connecting shaft 12, a mounting hole 13, a snap-fit pin 14, and a compression spring 15. One end of the connecting shaft 12 is fixedly connected to the lower end of the connecting arm 7.
[0028] The slider 11 is slidably connected in the groove 6; a bearing is provided between the connecting shaft 12 and the slider 11, and the end of the connecting shaft 12 away from the connecting arm 7 is rotatably connected to the middle of the slider 11 through the bearing; mounting holes 13 are opened on the outer surfaces of both ends of the slider 11, and compression springs 15 are located in the mounting holes 13; the outer surface of one end of the compression spring 15 is fixedly connected to one end of the mounting hole 13, and the outer surface of the other end of the compression spring 15 is fixedly connected to the outer surface of one end of the locking pin 14, and the outer wall of the locking pin 14 is slidably connected to the mounting hole 13. One end of the snap-fit pin 14 is elastically connected to one end of the mounting hole 13 via a compression spring 15; one end of the snap-fit pin 14 is detachably snapped into the first limiting hole 9 and the second limiting hole 10; when the snap-fit pin 14 is snapped into the first limiting hole 9, the protective cover 3 is in the open state and separated from the programmable AC power supply body 1; when the snap-fit pin 14 is snapped into the second limiting hole 10, the protective cover 3 is in the closed state and completely covers the control panel 2, and the protective cover 3 is attached to the upper outer surface of the programmable AC power supply body 1.
[0029] It should be noted that this utility model is a portable, programmable AC power supply, as shown in the attached instruction manual. Figure 1 As shown, at this time, one end of the locking pin 14 in the locking and limiting assembly 8 is locked into the first limiting hole 9. At this time, the protective cover 3 is separated from the programmable AC power supply body 1. Then, the protective cover 3 is rotated, and the protective cover 3 drives the connecting shaft 12 to rotate through the connecting arm 7, flipping the protective cover 3 to one side of the programmable AC power supply body 1, making it easier to operate the control panel 2. When it is necessary to carry it, the protective cover 3 is adjusted as shown in the instruction manual. Figure 1As shown in the diagram, the locking pin 14, which is engaged in the first limiting hole 9, is then squeezed to separate from the first limiting hole 9. The locking pin 14 then presses against the compression spring 15 along the mounting hole 13, and one end of the locking pin 14 enters the mounting hole 13. Then the sliding block 11 slides down along the groove 6. When the locking pin 14 reaches the position of the second limiting hole 10, one end of the locking pin 14 engages in the second limiting hole 10. At this time, the protective cover 3 covers the outside of the control panel 2. The protective cover 3 is located at the upper end of the programmable AC power supply body 1, which serves as protection and is easy to carry.
[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A portable programmable AC power supply, comprising a programmable AC power supply body (1), the upper end outer surface of the programmable AC power supply body (1) is provided with a control panel (2), characterized in that: The control panel (2) is provided with a protective cover (3) on its upper part. A handle (4) is fixedly installed on the middle of the upper outer surface of the protective cover (3). Sheet metal blocks (5) are fixedly installed on the upper part of the outer surfaces on both sides of the programmable AC power supply body (1). A groove (6) is opened on one side of the outer surface of the sheet metal block (5). A second limiting hole (10) is opened at the lower end of the outer surfaces on both sides of the sheet metal block (5). A first limiting hole (9) is opened at the upper end of the outer surfaces on both sides of the sheet metal block (5). Both the first limiting hole (9) and the second limiting hole (10) penetrate into the protrusion (6). Connecting arms (7) are fixedly installed in the middle of the outer surfaces of both ends of the protective cover (3). The lower end of the connecting arm (7) is connected to a snap-fit limiting component (8). The snap-fit limiting component (8) includes a slider (11), a connecting shaft (12), a mounting hole (13), a snap-fit pin (14), and a compression spring (15). One end of the connecting shaft (12) is fixedly connected to the lower end of the connecting arm (7).
2. A portable programmable AC power supply as claimed in claim 1, wherein: The slider (11) is slidably connected in the groove (6).
3. A portable programmable AC power supply as defined in claim 2, wherein: A bearing is provided between the connecting shaft (12) and the slider (11), and the end of the connecting shaft (12) away from the connecting arm (7) is rotatably connected to the middle of the slider (11) through the bearing.
4. A portable programmable AC power supply as defined in claim 3, wherein: The mounting holes (13) are opened on the outer surfaces of both ends of the slider (11), and the compression spring (15) is located in the mounting holes (13).
5. A portable programmable AC power supply as defined in claim 4, wherein: One end of the compression spring (15) is fixedly connected to one end of the mounting hole (13), and the other end of the compression spring (15) is fixedly connected to one end of the outer surface of the snap-fit pin (14). The outer wall of the snap-fit pin (14) is slidably connected to the mounting hole (13), and one end of the outer surface of the snap-fit pin (14) is elastically connected to one end of the mounting hole (13) through the compression spring (15).
6. A portable programmable AC power supply as claimed in claim 5, characterized in that: One end of the locking pin (14) is detachably locked to the first limiting hole (9) and the second limiting hole (10); when the locking pin (14) is locked to the first limiting hole (9), the protective cover (3) is in the open state and separated from the programmable AC power supply body (1); when the locking pin (14) is locked to the second limiting hole (10), the protective cover (3) is in the closed state and completely covers the control panel (2), and the protective cover (3) is attached to the upper outer surface of the programmable AC power supply body (1).