An alternating current fixed frequency single machine set controller

Abstract

The utility model relates to the technical field of alternating current fixed frequency single unit controller, solves the problem that the dust is accumulated at the air vent with the increase of use time when the controller is internally radiated, influences the ventilation efficiency, and further leads to the problem of low radiating efficiency. Specifically, an alternating current fixed frequency single unit controller, comprising a controller body, a fixing plate is arranged in the square groove opened on the side of the controller body, a heat conduction plate is fixedly connected to the back of the fixing plate through a connecting rod, a heat conduction silica gel pad that contacts the internal electronic elements of the controller body is arranged on the back of the heat conduction plate, heat conduction fins are arranged on the surface of the heat conduction plate, copper pipes penetrate through the heat conduction fins, a plurality of ventilation grooves are arranged on the surface of the fixing plate, and a fan is arranged in the middle part, an L-shaped rocker arm is fixed to the surface of the fan, the L-shaped rocker arm is connected to a short rod through a sliding hole and is in sliding fit with a sliding ring, and a limiting rod with a limiting piece at both ends is in sliding connection with the inside of the sliding ring.

Description

Technical Field

[0001] This utility model relates to the technical field of AC fixed-frequency single-unit controllers, specifically an AC fixed-frequency single-unit controller. Background Technology

[0002] A fixed-frequency cooling controller disclosed in CN209310306U includes a main control chip, a power supply circuit, a cooling control circuit, and a detection circuit; the power supply circuit supplies power to at least the main control chip, and the main control chip is electrically connected to the cooling control circuit and the detection circuit.

[0003] It eliminates cumbersome external devices such as AC contactors, overload protectors, and phase sequence protectors, and achieves unified integrated circuit isolation detection and protection functions through switch quantity detection circuits.

[0004] However, when the controller dissipates heat internally, dust accumulates at the vents over time, affecting ventilation efficiency and resulting in low heat dissipation efficiency. Therefore, this solution is not very efficient for the controller's heat dissipation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an AC fixed-frequency single-unit controller, which solves the problem that when the controller is used for heat dissipation, dust accumulates at the ventilation openings over time, affecting ventilation efficiency and leading to low heat dissipation efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an AC fixed-frequency single-unit controller, comprising a controller body, a fixed plate disposed in a square groove on the side of the controller body, a heat-conducting plate fixedly connected to the back of the fixed plate by a connecting rod, a heat-conducting silicone pad in contact with the internal electronic components of the controller body on the back of the heat-conducting plate, heat-conducting fins disposed on the surface of the heat-conducting plate, copper tubes penetrating the interior of the heat-conducting fins, several ventilation slots disposed on the surface of the fixed plate and a fan disposed in the center; an L-shaped rocker arm fixed to the surface of the fan, the L-shaped rocker arm slidingly engaging with a sliding ring via a short rod connected by a sliding hole, a limiting rod with limiting plates at both ends slidably connected inside the sliding ring, a T-shaped plate rotatably connected to the edge of the fixed plate on one side of the limiting plate, and a flexible brush in contact with the inner wall of the square heat dissipation groove on the surface of the fixed rod on one side of the limiting rod.

[0007] In one specific embodiment, connecting rods are fixed at the four corners of the back of the fixing plate, and a heat-conducting plate is fixed at one end of the connecting rod, with the heat-conducting plate and the heat-conducting silicone pad being tightly attached.

[0008] In one specific embodiment, the copper tube penetrating inside the heat-conducting fins extends along the length of the fins, and the ventilation slots are distributed in a rectangular array on the surface of the fixed plate.

[0009] In a specific embodiment, the L-shaped rocker arm drives the sliding ring to slide along the limiting rod via a short rod, and the limiting plate achieves up-and-down reciprocating swing through a T-plate.

[0010] In one specific embodiment, the fixing rod is fixedly connected to the limiting plate, and the flexible brush cleans the inner wall of the heat dissipation groove when it swings with the limiting plate.

[0011] In one specific embodiment, the square cover covers the fixing plate and the fan, and the opening direction of the heat dissipation groove is consistent with the air outlet direction of the fan.

[0012] Compared with the prior art, this utility model provides an AC fixed-frequency single-unit controller, which has the following beneficial effects:

[0013] The technical solution disclosed in this utility model achieves efficient heat conduction of the internal electronic components of the controller through the tight fit design of the heat-conducting plate and the heat-conducting silicone pad, solving the problems of high thermal resistance and low heat dissipation efficiency of the heat dissipation method, and improving the efficiency of heat transfer from the electronic components to the heat-conducting fins. Through the linkage mechanism design of the L-shaped rocker arm, short rod, sliding ring and limit rod, the automatic cleaning function of the flexible brush driven by the fan rotation on the inner wall of the heat dissipation slot is realized, solving the problem of dust accumulation and blockage of the heat dissipation slot, and improving the long-term stability and ventilation efficiency of the heat dissipation system. Through the rotational connection design of the limit plate and the T-plate, the stable reciprocating oscillation of the flexible brush during the cleaning process is ensured, avoiding the problem of brush deviation or jamming, and improving the reliability of the dust cleaning action. Through the synergistic design of multi-stage heat dissipation structure and automatic dust cleaning mechanism, the dual functions of efficient heat dissipation and dust blockage prevention are realized, solving the problem of performance degradation caused by poor heat dissipation of traditional controllers, and significantly improving the operational stability and service life of AC fixed frequency single unit controllers. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the controller body structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the flexible brush structure of this utility model.

[0019] In the diagram: 1. Controller body; 2. Fixing plate; 3. Connecting rod; 4. Heat-conducting plate; 5. Thermal conductive silicone pad; 6. Thermal conductive fins; 7. Copper pipe; 8. Ventilation slot; 9. Fan; 10. L-shaped rocker arm; 11. Short rod; 12. Sliding ring; 13. Limiting rod; 14. Limiting piece; 15. Fixing rod; 16. Flexible brush; 17. T-plate; 18. Square cover; 19. Heat dissipation slot. Detailed Implementation

[0020] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] Figures 1-4 As one embodiment of this utility model, an AC fixed-frequency single-unit controller includes a controller body 1. A fixing plate 2 is provided in a square groove on the side of the controller body 1. A heat-conducting plate 4 is fixedly connected to the back of the fixing plate 2 by a connecting rod 3. A heat-conducting silicone pad 5 is provided on the back of the heat-conducting plate 4, which contacts the electronic components inside the controller body 1. A heat-conducting fin 6 is provided on the surface of the heat-conducting plate 4. A copper tube 7 passes through the heat-conducting fin 6. A plurality of ventilation slots 8 are provided on the surface of the fixing plate 2 and a fan 9 is provided in the middle.

[0022] The specific problem addressed in this embodiment is to solve the problem that, when the controller is dissipating heat, dust accumulates at the ventilation openings over time, affecting ventilation efficiency and thus leading to low heat dissipation efficiency. This invention achieves efficient heat conduction of the internal electronic components of the controller through the tight fit design of the heat-conducting plate 4 and the heat-conducting silicone pad 5, solving the problems of high thermal resistance and low heat dissipation efficiency of traditional heat dissipation methods. It improves the efficiency of heat transfer from electronic components to heat-conducting fins 6. Through the linkage mechanism design of L-shaped rocker arm 10, short rod 11, sliding ring 12 and limiting rod 13, it realizes the automatic cleaning function of flexible brush 16 driven by fan 9 on the inner wall of heat dissipation slot 19 when fan 9 rotates, solving the problem of dust accumulation and clogging of heat dissipation slot 19, and improving the long-term stability and ventilation efficiency of the heat dissipation system. Through the rotational connection design of limiting plate 14 and T-plate 17, it ensures the stable reciprocating swing of flexible brush 16 during the cleaning process, avoiding brush deviation or jamming, and improving the reliability of dust cleaning action. Through the synergistic design of multi-stage heat dissipation structure and automatic dust cleaning mechanism, it achieves the dual functions of efficient heat dissipation and dust prevention, solving the performance degradation problem caused by poor heat dissipation of traditional controllers, and significantly improving the operational stability and service life of AC fixed frequency single unit controller.

[0023] An L-shaped rocker arm 10 is fixed to the surface of the fan 9. The L-shaped rocker arm 10 is connected to a short rod 11 via a sliding hole and slides in cooperation with a sliding ring 12. The sliding ring 12 is internally connected to a limiting rod 13 with limiting plates 14 at both ends. One side of the limiting plate 14 is rotatably connected to a T-shaped plate 17 on the edge of the fixing plate 2. The surface of the fixing rod 15 on one side of the limiting rod 13 is provided with a flexible brush 16 that contacts the inner wall of the heat dissipation groove 19 of the square cover 18. In this specific embodiment, the fixing plate 2 is installed in the square groove on the side of the controller body 1. The fixing plate 2 is fixed to the heat conduction plate 4 via connecting rods 3 at the four corners of the back. The heat conduction plate 4 is in close contact with the internal electronic components of the controller via the heat conduction silicone pad 5 on the back to conduct heat. Heat conduction fins 6 are welded to the surface of the heat conduction plate 4. Copper tubes 7 pass through the fins to enhance the heat conduction efficiency. An array-type ventilation groove 8 is opened on the surface of the fixing plate 2 and the fan 9 is installed in the center. When the fan 8 is running, a vertical airflow channel is formed through the ventilation groove 8. By directly contacting the thermally conductive silicone pad 5 with the electronic components, low thermal resistance conduction is achieved. The combined design of the copper pipe 7 and the thermally conductive fins 6 improves the heat dissipation area and heat exchange efficiency.

[0024] In this specific embodiment, connecting rods 3 are fixed at the four corners of the back of the fixing plate 2, and a heat-conducting plate 4 is fixed at one end of the connecting rod 3, and the heat-conducting plate 4 is in close contact with the heat-conducting silicone pad 5.

[0025] The connecting rod 3 is made of metal, and its length ensures that the heat-conducting plate 4 and the inner wall of the controller body 1 maintain a preset distance. After the thermally conductive silicone pad 5 is deformed under pressure, it completely fills the gap between the electronic components and the heat-conducting plate 4.

[0026] In this specific embodiment, the copper tube 7 that runs through the inside of the heat-conducting fin 6 extends along the length of the fin, and the ventilation slots 8 are distributed in a rectangular array on the surface of the fixing plate 2.

[0027] The copper tube 7 is inserted along the length of the heat-conducting fins 6 and fixed by brazing. The rectangular array layout of the ventilation slots 8 is concentrically distributed with the rotation center of the fan 9.

[0028] In this specific embodiment, the L-shaped rocker arm 10 drives the sliding ring 12 to slide along the limiting rod 13 via the short rod 11, and the limiting piece 14 achieves up-and-down reciprocating swing through the T-plate 17.

[0029] When the fan 9 rotates, it drives the L-shaped rocker arm 10 to rotate. The short rod 11 slides in the sliding ring 12 and pushes the limit rod 13 to move along the constraint trajectory of the T-plate 17, causing the limit piece 14 to swing up and down periodically.

[0030] In this specific embodiment, the fixing rod 15 is fixedly connected to the limiting piece 14, and the flexible brush 16 cleans the inner wall of the heat dissipation groove 19 when it swings with the limiting piece 14.

[0031] The fixing rod 15 and the limiting plate 14 are fastened with bolts. The bristle length of the flexible brush 16 is greater than the depth of the heat dissipation groove 19. When it swings, the bristles undergo elastic deformation to scrape off the dust in the groove.

[0032] In this specific embodiment, the square cover 18 covers the fixing plate 2 and the fan 9, and the opening direction of the heat dissipation groove 19 is consistent with the air outlet direction of the fan 9.

[0033] The heat dissipation slots 19 of the square cover 18 are opened at an angle, and the angle direction is at an acute angle with the air outlet direction of the fan 9. The edge of the cover is provided with a guide lip.

[0034] Working principle: The heat generated by the electronic components inside the controller body 1 is conducted to the heat-conducting plate 4 through the thermally conductive silicone pad 5, and then the heat diffusion is accelerated by the copper pipe 7 that runs through the heat-conducting fins 6. At the same time, the airflow generated by the fan 9 is forced to dissipate heat on the heat-conducting fins 6 through the ventilation slot 8. During this process, the fan 9 drives the L-shaped rocker arm 10 to rotate. Through the cooperation of the short rod 11 and the sliding ring 12, the limiting rod 13 moves along the constraint trajectory of the T-shaped plate 17, driving the flexible brush 16 on the fixed rod 15 to reciprocate to clean the inner wall of the heat dissipation slot 19. The dust removed is discharged from the inclined heat dissipation slot 19 with the airflow of the fan 9. The guide lip of the square cover 18 prevents the hot air from flowing back, thereby achieving continuous and efficient heat dissipation and automatic dust removal functions.

[0035] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0037] 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. An AC fixed-frequency single-unit controller, comprising a controller body (1), characterized in that: A fixing plate (2) is provided in the square groove opened on the side of the controller body (1). A heat-conducting plate (4) is fixedly connected to the back of the fixing plate (2) by a connecting rod (3). A heat-conducting silicone pad (5) is provided on the back of the heat-conducting plate (4) to contact the electronic components inside the controller body (1). A heat-conducting fin (6) is provided on the surface of the heat-conducting plate (4). A copper tube (7) runs through the inside of the heat-conducting fin (6). Several ventilation slots (8) are opened on the surface of the fixing plate (2) and a fan (9) is provided in the middle. The fan (9) has an L-shaped rocker arm (10) fixed on its surface. The L-shaped rocker arm (10) is connected to a short rod (11) through a sliding hole and slides with a sliding ring (12). The sliding ring (12) is slidably connected to a limiting rod (13) with limiting plates (14) at both ends. The limiting plate (14) is rotatably connected to a T-shaped plate (17) on the edge of the fixing plate (2). The surface of the fixing rod (15) on one side of the limiting rod (13) is provided with a flexible brush (16) that contacts the inner wall of the heat dissipation groove (19) of the square cover (18).

2. The AC fixed-frequency single-unit controller according to claim 1, characterized in that: The four corners of the back of the fixing plate (2) are all fixed with connecting rods (3). One end of the connecting rod (3) is fixed with a heat-conducting plate (4) and the heat-conducting plate (4) is in close contact with the heat-conducting silicone pad (5).

3. The AC fixed-frequency single-unit controller according to claim 1, characterized in that: The copper tube (7) that runs through the heat-conducting fin (6) extends along the length of the fin, and the ventilation slots (8) are distributed in a rectangular array on the surface of the fixing plate (2).

4. The AC fixed-frequency single-unit controller according to claim 1, characterized in that: The L-shaped rocker arm (10) drives the sliding ring (12) to slide along the limiting rod (13) via the short rod (11), and the limiting piece (14) swings up and down via the T-plate (17).

5. An AC fixed-frequency single-unit controller according to claim 1, characterized in that: The fixed rod (15) is fixedly connected to the limiting piece (14), and the flexible brush (16) cleans the inner wall of the heat dissipation groove (19) when it swings with the limiting piece (14).

6. The AC fixed-frequency single-unit controller according to claim 1, characterized in that: The square cover (18) covers the fixing plate (2) and the fan (9), and the opening direction of the heat dissipation groove (19) is consistent with the air outlet direction of the fan (9).

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