Medium-voltage dual power automatic fast transfer controller
By integrating electromagnetic shielding components and switcher cooling components into the dual power switch, electromagnetic interference and heat dissipation problems are solved, the stability and reliability of the equipment are improved, and fast and reliable power switching is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN LANGSUNG ELECTRIC CORP LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional dual-power switching devices have problems with electromagnetic interference and heat dissipation, which affect the stability and reliability of the equipment, especially in complex electromagnetic environments and under high-load operating conditions.
The design employs electromagnetic shielding components and switcher cooling components, including a plastic protective cover, conductive coating, servo motor, and propeller blades, to form a directional airflow circulation, achieving electromagnetic interference shielding and effective heat dissipation.
The equipment's anti-interference capability and heat dissipation performance have been improved, ensuring the stable operation of the dual power supply switch and extending its service life, while also enhancing maintenance convenience.
Smart Images
Figure CN224537852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dual power supply switch technology, specifically to a medium-voltage dual power supply automatic fast switching controller. Background Technology
[0002] In power supply systems, ensuring the continuous and reliable operation of critical loads is crucial, especially in locations with extremely high power supply requirements such as data centers, communication base stations, and medical facilities. Automatic transfer switching devices (ATS) are key components for ensuring power supply continuity, and their performance and reliability directly affect the stable operation of the entire system. However, traditional ATSs face several problems in practical applications that urgently need to be addressed.
[0003] On the one hand, electromagnetic interference is a significant issue. In complex electromagnetic environments, external electromagnetic interference can affect the normal operation of dual power supply switches, leading to malfunctions or failures, and consequently impacting the continuity of power supply. For example, in locations near large electrical equipment or wireless communication equipment, electromagnetic interference is severe, and traditional dual power supply switches may fail to accurately detect the power status, thus hindering timely and accurate power switching. On the other hand, heat dissipation is also a concern. Dual power supply switches generate heat during operation, and if this heat cannot be dissipated effectively and promptly, the equipment temperature will rise, affecting its performance and lifespan. This problem is particularly pronounced under prolonged high-load operation. Traditional dual power supply switching devices may lack effective heat dissipation measures or have poorly designed heat dissipation structures, preventing heat from dissipating in a timely manner and increasing the risk of equipment failure. To address these issues, this technical solution proposes a medium-voltage dual power supply automatic fast switching controller. Summary of the Invention
[0004] The purpose of this utility model is to provide a technical solution for a medium-voltage dual-power automatic fast switching controller to address the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following: The device includes a dual power switcher, the front of which is covered with an electromagnetic shielding component; the electromagnetic shielding component includes a plastic protective cover, a conductive coating on the inner wall of the plastic protective cover, and two sets of switcher cooling components are embedded and fixed on both the left and right sides of the plastic protective cover; a 3M rubber pad is fixedly connected to the rear end face of the plastic protective cover. Each of the switcher cooling components includes a fan frame, a servo motor fixedly connected to the center of the fan frame cavity, and 4-8 blades fixed in a ring array on the output shaft of the servo motor.
[0005] As a preferred embodiment of this utility model: the dual power switch is located in the inner cavity of the plastic protective cover, and there is a gap of 0.5cm-1.0cm between the inner wall of the plastic protective cover and the outer surface of the dual power switch.
[0006] As a preferred embodiment of this utility model, wiring ports are provided on both the left and right sides of the top and bottom surfaces of the plastic protective cover, for wiring operations to be performed on the wiring terminals on the surface of the dual power switch.
[0007] As a preferred embodiment of this utility model: ventilation openings are provided on both the left and right side walls of the plastic protective cover for the switching device cooling component to be embedded and fixed.
[0008] As a preferred embodiment of this utility model, the rear end face of the 3M pad away from the plastic protective cover is fixedly adhered to the front end face of the plastic protective cover by adhesive.
[0009] As a preferred embodiment of this utility model: the outer surface sidewalls of the fan frame are all fixedly connected to the inner cavity sidewalls of the ventilation opening.
[0010] As a preferred embodiment of this utility model: the switcher cooling component on the left blows air into the inner cavity of the plastic protective cover, and the switcher cooling component on the right draws hot air from the inner cavity of the plastic protective cover, thereby achieving cooling of the dual power switcher by allowing air circulation.
[0011] As a preferred embodiment of this utility model, a filter screen is fixedly connected to the inner end face of the fan frame to block airborne dust.
[0012] As a preferred embodiment of this utility model: 3-6 fixing rods are fixedly connected in a ring array on the inner cavity side wall of the fan frame, and the end of the fixing rods that converges with each other is fixedly connected to the outer surface of the servo motor.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: In this solution, the inner cavity of the plastic protective cover of the electromagnetic shielding component is coated with a conductive layer, which effectively shields against external electromagnetic interference, ensuring stable operation of the dual power switch and preventing malfunctions or failures caused by electromagnetic interference. The switch's cooling component, through the cooperation of fans on both sides, creates a directional airflow circulation with air intake on the left and exhaust on the right, effectively removing heat generated by the dual power switch, reducing equipment temperature, and extending its service life. The filter screen blocks airborne dust, preventing it from entering the inner cavity and affecting heat dissipation and electrical performance. The wiring port design of the plastic protective cover facilitates wiring operations while maintaining electromagnetic shielding functionality, and 3M rubber pads ensure secure installation. The overall solution ensures reliable operation of the dual power switch while improving the equipment's heat dissipation performance, anti-interference capability, and ease of maintenance. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0015] Figure 1 This is a schematic diagram of a dual power supply switch and electromagnetic shielding components. Figure 2 This is a schematic diagram of a dual power supply switch; Figure 3 This is an exploded view of the electromagnetic shielding assembly. Figure 4 A schematic diagram of the switcher cooling assembly.
[0016] Explanation of reference numerals in the attached figures: 1. Dual power supply switch; 2. Electromagnetic shielding assembly; 21. Plastic protective cover; 22. Ventilation outlet; 23. Switch cooling assembly; 231. Fan frame; 232. Servo motor; 233. Blade; 24. Wiring port; 25. 3M rubber pad. Detailed Implementation
[0017] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principles of the embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific parts in particular drawings may be exaggerated to illustrate relevant details or structures of the embodiments of this disclosure. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solution of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.
[0018] Example 1: The medium-voltage dual-power automatic fast transfer controller consists of a dual-power switcher 1 and an electromagnetic shielding assembly 2. The dual-power switcher 1 adopts a standard dual-power automatic transfer switch, and its outer front is encased in the electromagnetic shielding assembly 2. The plastic protective cover 21 of the electromagnetic shielding assembly 2 is injection molded from ABS engineering plastic, and the inner cavity sidewall is coated with a silver-based conductive coating to form an electromagnetic shielding layer. Two sets of switcher cooling assemblies 23 are embedded on each of the left and right sides of the plastic protective cover 21. The fan frame 231 of each cooling assembly 23 is connected to a servo motor 232 through four cross-shaped fixing rods. Six blades 233 are mounted on the output shaft of the servo motor 232. A 3M adhesive pad 25 is adhered to the rear end face of the plastic protective cover 21, and the adhesive material is used to fix it to the main body of the plastic protective cover 21. When installing the dual-power switcher 1, a gap of 0.8cm is maintained between it and the inner cavity sidewall of the plastic protective cover 21. The top and bottom wiring ports 24 are opened corresponding to the wiring terminal positions of the dual-power switcher 1.
[0019] The plastic protective cover 21 of the electromagnetic shielding component 2 is made of PC / ABS alloy material, and the conductive coating of the inner cavity is changed to copper-based composite material. The fan frame 231 of the switcher cooling component 23 is connected to the servo motor 232 through six hexagonally distributed fixing rods, and eight blades 233 are installed on the output shaft of the servo motor 232. The 3M adhesive pad 25 on the rear side of the plastic protective cover 21 adopts a double-sided adhesive structure and is directly bonded to the mounting surface. The gap between the dual power switcher 1 and the inner cavity side wall of the plastic protective cover 21 is adjusted to 0.5cm. The left cooling component 23 is set to air intake mode, and the right cooling component 23 is set to air exhaust mode, forming a directional airflow channel.
[0020] Example 2: The medium-voltage dual-power automatic fast switching controller adopts a modular design. The plastic protective cover 21 of the electromagnetic shielding component 2 is divided into upper and lower parts, which are spliced together by a snap-fit structure. The conductive coating of the inner cavity is made of nickel-based nanocomposite material, with a thickness controlled at 20-30μm. The fan frame 231 of the switcher cooling component 23 is connected to the servo motor 232 through three fixed rods arranged in a triangle. The output shaft of the servo motor 232 is equipped with four blades 233. The top and bottom wiring ports 24 of the plastic protective cover 21 are equipped with removable rubber sleeves, and removable filters are installed at the ventilation ports 22 on the left and right sides. The gap between the dual-power switcher 1 and the inner cavity side wall of the plastic protective cover 21 is set to 1.0cm. A micro-positive pressure environment is formed by adjusting the speed difference of the cooling components 23 on the left and right sides.
[0021] Example 3: For special environmental applications, the plastic protective cover 21 of the electromagnetic shielding component 2 is made of flame-retardant PBT material, and a graphene composite layer is added to the conductive coating of the inner cavity. The fan frame 231 of the switcher cooling component 23 is connected to the servo motor 232 through five star-shaped fixed rods, and seven blades 233 are installed on the output shaft of the servo motor 232. The 3M rubber pad 25 on the rear side of the plastic protective cover 21 is changed to a magnetic structure, which is directly attached to the metal mounting surface. The gap between the dual power switcher 1 and the inner cavity side wall of the plastic protective cover 21 is set to 0.7cm. The left and right cooling components 23 adopt an alternating working mode. The left component switches to the right component every 10 minutes to achieve intermittent heat dissipation.
[0022] Example 4: Based on Example 1, an intelligent control module is added. A temperature sensor is embedded in the plastic protective cover 21 of the electromagnetic shielding component 2, forming a closed-loop control with the servo motor 232 of the switcher cooling component 23. The plastic protective cover 21 is made of transparent PC material, and the conductive coating inside the cavity is changed to a transparent conductive oxide. The fan frame 231 of the switcher cooling component 23 is connected to the servo motor 232 through five spirally distributed fixing rods. Five variable cross-section blades 233 are installed on the output shaft of the servo motor 232. The gap between the dual power switch 1 and the inner wall of the plastic protective cover 21 is set to 0.6cm. When the temperature exceeds the set value, the left cooling component 23 automatically increases its speed, while the right component maintains its base speed, forming dynamic heat dissipation regulation.
[0023] Based on the above preferred technical solution, the workflow of this technical solution is described as follows: When the dual power switch 1 is in normal operation, the plastic protective cover 21 of the electromagnetic shielding component 2 shields against external electromagnetic interference through the conductive coating on its inner cavity sidewall. Simultaneously, the 3M adhesive pad 25 on the rear side of the plastic protective cover 21 firmly adheres the entire component to the mounting surface. When the dual power switch 1 starts operating, the servo motor 232 of the left-side switch cooling component 23 starts, driving the paddle 233 on the output shaft to rotate. This draws external cold air into the inner cavity of the plastic protective cover 21 through the vent 22 on the left side. The air then flows through... During the process, the heat generated on the surface of the dual power switch 1 is carried away; at the same time, the servo motor 232 of the right switch cooling component 23 starts synchronously, and the blades 233 on its output shaft rotate in the opposite direction, drawing out the hot air inside the plastic protective cover 21 through the right ventilation port 22, forming a directional airflow circulation; during the airflow process, the filter screen installed on the inner end face of the fan frame 231 filters the intake air, preventing floating dust in the air from entering the inner cavity of the plastic protective cover 21, and avoiding dust adhering to the surface of the dual power switch 1 to affect heat dissipation and electrical performance.
[0024] When the dual power switch 1 needs to perform a power switching operation, its internal circuit automatically detects the status of the main and backup power supplies. When the switching conditions are met, the mechanical contacts of the dual power switch 1 actuate, realizing a rapid switch between the main and backup power supplies. The entire switching process is carried out under the protection of the electromagnetic shielding component 21 and is not affected by external electromagnetic interference. When the dual power switch 1 operates for a long time or the ambient temperature is high, the servo motor 232 of the cooling component 23 on the left side of the switch can automatically increase its speed and increase the air intake based on the signal fed back by the temperature sensor. The cooling component 23 on the right side of the switch will correspondingly increase the exhaust volume to enhance the heat dissipation effect. During equipment maintenance or repair, operators can access the terminals of the dual power switch 1 through the wiring ports 24 at the top and bottom of the plastic protective cover 21. The design of the wiring ports 24 ensures that the electromagnetic shielding component 2 can maintain its basic electromagnetic shielding function during operation. If maintenance is required on the switch cooling component 23, the filter screen at the vent 22 can be removed for cleaning or replacement. At the same time, the servo motor 232 and blades 233 inside the fan frame 231 can be inspected and maintained. During maintenance, the electromagnetic shielding and physical protection functions of the plastic protective cover 21 for the dual power switch 1 are not affected.
[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A medium-voltage dual-power automatic fast switching controller, comprising a dual-power switcher (1), characterized in that: The front side of the dual power switch (1) is covered with an electromagnetic shielding component (2). The electromagnetic shielding component (2) includes a plastic protective cover (21), a conductive coating on the side wall of the inner cavity of the plastic protective cover (21), and two sets of switcher cooling components (23) are embedded and fixed on both the left and right sides of the plastic protective cover (21). A 3M pad (25) is fixedly connected to the rear end face of the plastic protective cover (21). Each of the switcher cooling components (23) includes a fan frame (231), a servo motor (232) fixedly connected to the center of the inner cavity of the fan frame (231), and 4-8 blades (233) fixed in a ring array on the output shaft of the servo motor (232).
2. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The dual power switch (1) is located in the inner cavity of the plastic protective cover (21), and there is a gap of 0.5cm-1.0cm between the inner wall of the plastic protective cover (21) and the outer surface of the dual power switch (1).
3. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The top and bottom surfaces of the plastic protective cover (21) are provided with wiring ports (24) on both the left and right sides, for wiring operations to be performed on the wiring terminals on the surface of the dual power switch (1).
4. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: Ventilation openings (22) are provided on both the left and right side walls of the plastic protective cover (21) for the switching cooling component (23) to be embedded and fixed.
5. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The rear end face of the 3M pad (25) away from the plastic protective cover (21) is fixedly adhered to the front end face of the plastic protective cover (21) by adhesive.
6. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The outer surface sidewalls of the fan frame (231) are all fixedly connected to the inner cavity sidewalls of the ventilation opening (22).
7. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The switcher cooling component (23) on the left blows air into the inner cavity of the plastic protective cover (21), while the switcher cooling component (23) on the right draws hot air from the inner cavity of the plastic protective cover (21). By allowing air to circulate, the dual power switcher (1) is cooled.
8. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The inner end face of the fan frame (231) is fixedly connected with a filter screen to block airborne dust.
9. The medium-voltage dual-power automatic fast switching controller according to claim 1, characterized in that: The inner cavity sidewall of the fan frame (231) is fixedly connected with 3-6 fixed rods in a ring array, and the end of the fixed rods that converges with each other is fixedly connected to the outer surface of the servo motor (232).