Switching power supply capable of adjusting voltage and current

Abstract

The utility model relates to the technical field of switching power supplies, and discloses a switching power supply capable of adjusting voltage and current, which comprises a rear shell, the front end of the inner wall of the rear shell is fixedly connected with a front shell, the lower part of the outer wall of the front end of the front shell is provided with a heat dissipation mechanism, and the heat dissipation mechanism comprises a fixed plate and a suction fan. A first filter screen is fixedly connected to the middle of the inner wall of the fixing plate, a connecting frame is in threaded fit with the front end of the inner wall of the fixing plate, a second filter screen is fixedly connected to the inner wall of the connecting frame, and a control seat is fixedly connected to the upper end of the inner wall of the rear shell. Compared with most traditional switching power supplies with adjustable voltage and current, the switching power supply with adjustable voltage and current is provided with the heat dissipation mechanism, and airflow entering the device is filtered and intercepted through the arranged double-layer shell detachable filter screen, so that the influence of dust on the device is reduced, and the service life of the device is prolonged. And the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of switching power supply technology, and in particular to an adjustable voltage and current switching power supply. Background Technology

[0002] Adjustable voltage and current power supplies are devices that utilize linear voltage regulation technology to provide stable output voltage and current. Users can flexibly adjust the output parameters according to their needs through a simple adjustment mechanism. These power supplies are widely used in laboratories and industrial fields to meet the power supply requirements of various electronic devices and ensure accurate power output.

[0003] However, traditional adjustable voltage and current switching power supplies are usually large in size, have a complex structure, are not easy to carry, and are troublesome to move and install. Due to their large size and complex design, the production and maintenance costs of traditional power supplies are usually high.

[0004] Therefore, those skilled in the art have provided an adjustable voltage and current switching power supply to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable voltage and current switching power supply. Compared to most traditional adjustable voltage and current switching power supplies, this power supply, with its compact design and simple structure, greatly improves portability and ease of use. Its small size makes it easy to carry and suitable for use in various environments, thus expanding its applicability. Its simple structure means that users can quickly get started and easily connect and operate it, saving time and effort. Furthermore, the power supply is equipped with intuitive interfaces and markings, making wiring connections simpler and faster, reducing the risk of wiring errors, thereby not only improving work efficiency but also enhancing the flexibility and practicality of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adjustable voltage and current switching power supply includes a rear housing, a front housing fixedly connected to the front end of the inner wall of the rear housing, a heat dissipation mechanism provided at the lower part of the front outer wall of the front housing, the heat dissipation mechanism including a fixing plate and a suction fan, a first filter screen fixedly connected to the middle part of the inner wall of the fixing plate, a connecting frame threadedly fitted to the front end of the inner wall of the fixing plate, a second filter screen fixedly connected to the inner wall of the connecting frame, and a control base fixedly connected to the upper end of the inner wall of the rear housing.

[0008] Compared with most traditional adjustable voltage and current switching power supplies, this adjustable voltage and current switching power supply is equipped with a heat dissipation mechanism. The airflow entering the device is filtered and intercepted by the double-layer shell detachable filter, thereby reducing the impact of dust on the device and extending the service life of the device.

[0009] Furthermore, a circuit board is fixedly connected to the inner wall of the rear end of the rear housing;

[0010] The above technical solution enables the switching power supply to function normally and regulate voltage and current.

[0011] Furthermore, a display panel is fixedly connected to the upper part of the front outer wall of the front housing;

[0012] The above technical solution enables users to observe and understand the voltage and current values ​​of the switching power supply through the display panel.

[0013] Furthermore, the fixing plate is fixedly connected to one side of the lower part of the front outer wall of the front housing, and the suction fan is fixedly connected to one side of the lower part of the rear outer wall of the front housing;

[0014] The above technical solution enables the suction fan to draw external airflow into the device after it has been filtered through a filter screen, thereby guiding and discharging the heat inside the device.

[0015] Furthermore, a positive terminal interface and a negative terminal interface are fixedly connected to both sides of the upper surface of the control base;

[0016] The above technical solution enables users to accurately understand the location of the positive and negative terminals.

[0017] Furthermore, a switch button is fixedly connected to the front end of one side of the upper surface of the control base;

[0018] The above technical solution enables users to start or stop the power supply using a switch button.

[0019] Furthermore, a line interface is fixedly connected to the rear end of one side of the middle part of the upper surface of the control base;

[0020] The above technical solution enables users to connect lines to other devices via the line interface.

[0021] Furthermore, adjustment knobs are rotatably connected to the front and rear ends of the other side of the upper surface of the control base;

[0022] The above technical solution allows users to adjust the voltage and current using two adjustment knobs.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes an adjustable voltage and current switching power supply. Compared with most traditional adjustable voltage and current switching power supplies, this adjustable voltage and current switching power supply has greatly improved portability and ease of use due to its compact design and simple structure. Its small size makes it easy to carry and suitable for use in various environments, thereby expanding the applicable range of the switching power supply. Its simple structure means that users can quickly get started and easily connect and operate it, thus saving time and effort. In addition, the switching power supply is equipped with intuitive interfaces and labels, making the wiring connection simpler and faster, reducing the risk of wiring errors, thereby not only improving work efficiency, but also enhancing the flexibility and practicality of the equipment.

[0025] 2. The adjustable voltage and current switching power supply proposed in this utility model has a heat dissipation mechanism compared with most traditional adjustable voltage and current switching power supplies. The double-layer shell detachable filter filters and intercepts the airflow entering the device, thereby reducing the impact of dust on the device and extending the service life of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an adjustable voltage and current switching power supply proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the control base structure of an adjustable voltage and current switching power supply proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the rear housing structure of an adjustable voltage and current switching power supply proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the fixing plate structure of an adjustable voltage and current switching power supply proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the suction fan structure of an adjustable voltage and current switching power supply proposed in this utility model.

[0031] Legend:

[0032] 1. Rear casing; 2. Circuit board; 3. Front casing;

[0033] 4. Heat dissipation mechanism; 401. Fixing plate; 402. First filter; 403. Connecting frame; 404. Second filter; 405. Suction fan;

[0034] 5. Display panel; 6. Control base; 7. Positive terminal; 8. Negative terminal; 9. Switch button; 10. Adjustment knob; 11. Line interface. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1-5 One embodiment provided by this utility model:

[0037] An adjustable voltage and current switching power supply includes a rear housing 1. A front housing 3 is fixedly connected to the front end of the inner wall of the rear housing 1. A heat dissipation mechanism 4 is provided on the lower part of the outer wall of the front end of the front housing 3. The heat dissipation mechanism 4 includes a fixing plate 401 and a suction fan 405. A first filter 402 is fixedly connected to the middle of the inner wall of the fixing plate 401. A connecting frame 403 is threadedly fitted to the front end of the inner wall of the fixing plate 401. A second filter 404 is fixedly connected to the inner wall of the connecting frame 403. A control base 6 is fixedly connected to the upper end of the inner wall of the rear housing 1.

[0038] Compared to most traditional adjustable voltage and current switching power supplies, this adjustable voltage and current switching power supply greatly improves portability and ease of use due to its compact design and simple structure. Its small size makes it easy to carry and suitable for use in various environments, thus expanding the scope of application of this switching power supply. Its simple structure means that users can quickly get started and easily connect and operate it, thereby saving time and effort. In addition, this switching power supply is equipped with intuitive interfaces and labels, making wiring connections simpler and faster, reducing the risk of wiring errors, thereby not only improving work efficiency, but also enhancing the flexibility and practicality of the equipment.

[0039] A circuit board 2 is fixedly connected to the inner wall of the rear end of the rear housing 1, enabling the switching power supply to operate normally and regulate voltage and current. A display board 5 is fixedly connected to the upper part of the outer wall of the front end of the front housing 3, allowing the user to observe and understand the voltage and current values ​​of the switching power supply through the display board 5. A fixing plate 401 is fixedly connected to one side of the lower part of the outer wall of the front end of the front housing 3. A suction fan 405 is fixedly connected to one side of the lower part of the outer wall of the rear end of the front housing 3, allowing the suction fan 405 to draw external airflow into the device after filtering through the filter screen, thereby guiding and dissipating heat inside the device. Positive electrodes are fixedly connected to both sides of the upper surface of the control base 6. The control base 6 has a positive terminal 7 and a negative terminal 8, allowing users to accurately identify the locations of these terminals. A switch button 9 is fixedly connected to the front end of one side of the upper surface of the control base 6, allowing users to start or stop the power supply. A line interface 11 is fixedly connected to the rear end of one side of the upper surface of the control base 6, allowing users to connect to other devices. Adjustment knobs 10 are rotatably connected to both the front and rear ends of the other side of the upper surface of the control base 6, allowing users to adjust the voltage and current using the two adjustment knobs 10.

[0040] Working principle: First, the control board, encoder and switching power supply are connected by connecting wires to realize the adjustment function. The required connection lines are connected to the positive interface 7, negative interface 8 and line interface 11 respectively. The voltage and current are adjusted by using the set adjustment knob 10 respectively. The current voltage and current values ​​can be viewed through the display board 5.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A switching power supply with adjustable voltage and current, comprising a rear housing (1), characterized in that: The front end of the inner wall of the rear outer shell (1) is fixedly connected to the front outer shell (3). The lower part of the outer wall of the front end of the front outer shell (3) is provided with a heat dissipation mechanism (4). The heat dissipation mechanism (4) includes a fixing plate (401) and a suction fan (405). The middle part of the inner wall of the fixing plate (401) is fixedly connected to a first filter screen (402). The front end of the inner wall of the fixing plate (401) is threaded with a connecting frame (403). The inner wall of the connecting frame (403) is fixedly connected to a second filter screen (404). The upper end of the inner wall of the rear outer shell (1) is fixedly connected to a control seat (6).

2. The adjustable voltage and current switching power supply according to claim 1, characterized in that: A circuit board (2) is fixedly connected to the inner wall of the rear end of the rear housing (1).

3. The adjustable voltage and current switching power supply according to claim 1, characterized in that: A display panel (5) is fixedly connected to the upper part of the front outer wall of the front shell (3).

4. The adjustable voltage and current switching power supply according to claim 1, characterized in that: The fixing plate (401) is fixedly connected to one side of the lower part of the front outer wall of the front housing (3), and the suction fan (405) is fixedly connected to one side of the lower part of the rear outer wall of the front housing (3).

5. The adjustable voltage and current switching power supply according to claim 1, characterized in that: The positive terminal interface (7) and the negative terminal interface (8) are fixedly connected to both sides of the upper surface of the control base (6).

6. The adjustable voltage and current switching power supply according to claim 1, characterized in that: A switch button (9) is fixedly connected to the front end of one side of the middle part of the upper surface of the control base (6).

7. The adjustable voltage and current switching power supply according to claim 1, characterized in that: A line interface (11) is fixedly connected to the rear end of one side of the middle part of the upper surface of the control base (6).

8. The adjustable voltage and current switching power supply according to claim 1, characterized in that: The front and rear ends of the control seat (6) on the other side of the upper surface are rotatably connected to adjustment knobs (10).

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