Explosion-proof frequency conversion box capable of digitally displaying frequency

Abstract

The utility model relates to the technical field of explosion-proof frequency conversion boxes, and discloses an explosion-proof frequency conversion box capable of digitally displaying frequency, which comprises a main body mechanism and a heat dissipation mechanism, the heat dissipation mechanism is positioned at the inner end of the main body mechanism, and the main body mechanism comprises an explosion-proof frequency conversion box body, a heat dissipation box and a ventilation support plate, the heat dissipation box is fixedly installed at the rear end of the explosion-proof frequency conversion box body, and the ventilation supporting plate is fixedly installed at the lower end of the inner end of the explosion-proof frequency conversion box body. The main body mechanism further comprises a frequency converter, a frequency sensor, a display screen, a protective film and an anti-explosion coating, the frequency converter is fixedly installed at the upper end of the ventilation supporting plate, the frequency sensor is fixedly installed at the upper end of the frequency converter, and the display screen is fixedly installed at the upper end of the front end of the anti-explosion frequency conversion box body. According to the explosion-proof frequency conversion box capable of digitally displaying the frequency, through the main body mechanism, the working state of the output power supply of the frequency conversion box is conveniently, visually and accurately displayed, the use requirements of people are conveniently met, and the practicability and functionality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof frequency conversion boxes, in particular to an explosion-proof frequency conversion box capable of digitally displaying frequency. Background Art

[0002] Explosion-proof frequency converters are power control devices that control AC motors by changing the frequency of the motor's operating power supply. They provide the required power voltage according to the motor's actual needs, thereby achieving energy saving and speed regulation. They are widely used in metallurgy, chemical industry, petroleum, water supply, mining, building materials, and motor industries.

[0003] The prior art patent document CN214900636U discloses a mining explosion-proof frequency conversion control box, which includes a base plate, an exhaust structure to prevent the internal temperature from being too high, a closed structure to prevent external combustion materials from entering, and a support structure for easy placement. A cavity is provided, and the support structures are all located inside the cavity. A main body is installed at the top of the base plate, and an explosion-proof inverter is installed at the bottom end inside the main body. The tops of both sides of the main body are equipped with mounting grooves, and the closed structures are all located inside the mounting grooves. The exhaust structure is located at the top inside the main body. The knob at one end of the screw is rotated to drive the screw to rotate. The utility model provides a threaded block, and the screw rotates. The threaded block moves laterally inside the cavity, driving the rack to move laterally, causing the gear to drive the rotating rod to rotate, and causing the movable base to tilt, controlling its angle, and stably placing the device. This structure achieves stable placement of the device.

[0004] However, the prior art CN214900636U patent is not convenient for intuitively and accurately displaying the working status of the frequency converter output power supply, is not convenient for meeting people's use needs, and reduces practicality and functionality. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof frequency converter that can digitally display frequency, so as to solve the problem in the above background technology that it is not convenient to intuitively and accurately display the working status of the frequency converter output power supply.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an explosion-proof frequency conversion box capable of digitally displaying frequency, comprising a main body and a heat dissipation mechanism, wherein the heat dissipation mechanism is located at the inner end of the main body, the main body comprising an explosion-proof frequency conversion box body, a heat dissipation box, and a ventilation support plate, the heat dissipation box being fixedly mounted at the rear end of the explosion-proof frequency conversion box body, and the ventilation support plate being fixedly mounted at the lower end of the inner end of the explosion-proof frequency conversion box body;

[0007] The main body structure also includes a frequency converter, a frequency sensor, a display screen, a protective film and an explosion-proof coating. The frequency converter is fixedly mounted on the upper end of the ventilation support plate, the frequency sensor is fixedly mounted on the upper end of the frequency converter, the display screen is fixedly mounted on the upper end of the front end of the explosion-proof frequency converter box body, the protective film is fixedly mounted on the front end of the display screen, and the explosion-proof coating is fixedly arranged on the inner end of the explosion-proof frequency converter box body.

[0008] Preferably, the heat dissipation mechanism includes an air inlet, a filter, a motor, a fan, a semiconductor refrigerator, heat dissipation fins, an air outlet, a protective net, a sealing door panel and a mounting plate. The air inlet is fixedly arranged at the rear end of the heat dissipation box to facilitate air circulation.

[0009] Preferably, the filter is fixedly mounted on the inner end of the air inlet, and the motor is fixedly mounted on the rear end of the inner end of the heat sink, so as to filter the air and prevent dust in the air from entering the heat sink and the explosion-proof frequency converter box.

[0010] Preferably, the fan is fixedly mounted at the front end of the motor transmission end, the semiconductor cooler is fixedly mounted at the lower end of the heat sink, and the cooling end of the semiconductor cooler extends to the interior of the heat sink. The cooling end of the semiconductor cooler facilitates cooling the interior of the heat sink and cooperates with the fan to generate cold air to cool and dissipate heat inside the explosion-proof frequency converter box.

[0011] Preferably, the heat dissipation fins are fixedly mounted on the outer end of the heating end of the semiconductor refrigerator, the air outlet is fixedly arranged at the lower end of the explosion-proof frequency converter box body, and the protective net is fixedly mounted on the inner end of the air outlet, so as to facilitate heat dissipation of the heating end of the semiconductor refrigerator, and the protective net is convenient for preventing mice from entering the explosion-proof frequency converter box body through the air outlet.

[0012] Preferably, the sealing door panel is movably mounted on the middle part of the front end of the explosion-proof frequency converter box body, and the mounting plate is fixedly mounted on the left and right ends of the lower end of the explosion-proof frequency converter box body, thereby improving practicality.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This explosion-proof frequency converter with digital frequency display can intuitively and accurately display the working status of the frequency converter output power through the main body mechanism, which is convenient for meeting people's usage needs and improving practicality and functionality;

[0015] 2. The explosion-proof frequency converter with digital frequency display has a heat dissipation mechanism. The cooling end of the semiconductor refrigerator is convenient for cooling the inside of the heat dissipation box and cooperates with the fan to generate cold air to cool the inside of the explosion-proof frequency converter. The heat dissipation fins are convenient for dissipating heat from the heating end of the semiconductor refrigerator. The protective net is convenient for preventing mice from entering the explosion-proof frequency converter through the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of local details Figure 1 ;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of local details Figure 2 .

[0020] In the figure: 1. Main body; 101. Explosion-proof frequency converter body; 102. Heat sink; 103. Ventilation support plate; 104. Frequency converter; 105. Frequency sensor; 106. Display screen; 107. Protective film; 108. Explosion-proof coating; 2. Heat dissipation mechanism; 201. Air inlet; 202. Filter; 203. Motor; 204. Fan; 205. Semiconductor refrigerator; 206. Heat dissipation fins; 207. Air outlet; 208. Protective net; 209. Sealing door panel; 210. Mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4 The utility model provides a technical solution: an explosion-proof frequency conversion box capable of digitally displaying frequency, comprising a main body 1 and a heat dissipation mechanism 2, the heat dissipation mechanism 2 being located at the inner end of the main body 1, the main body 1 comprising an explosion-proof frequency conversion box body 101, a heat dissipation box 102 and a ventilation support plate 103, the heat dissipation box 102 being fixedly mounted at the rear end of the explosion-proof frequency conversion box body 101, and the ventilation support plate 103 being fixedly mounted at the lower end of the inner end of the explosion-proof frequency conversion box body 101;

[0023] The main body 1 also includes a frequency converter 104, a frequency sensor 105, a display screen 106, a protective film 107 and an explosion-proof coating 108. The frequency converter 104 is fixedly mounted on the upper end of the ventilation support plate 103, the frequency sensor 105 is fixedly mounted on the upper end of the frequency converter 104, the display screen 106 is fixedly mounted on the upper end of the front end of the explosion-proof frequency converter box body 101, the protective film 107 is fixedly mounted on the front end of the display screen 106, and the explosion-proof coating 108 is fixedly arranged on the inner end of the explosion-proof frequency converter box body 101. The frequency converter 104 provides the required power supply voltage according to actual needs, thereby achieving the purpose of energy saving and speed regulation. The frequency converter 104 also has protection functions such as overcurrent, overvoltage, and over-current. Load protection, etc. The frequency sensor 105 is an instrument that converts the input frequency into a linearly output DC current, voltage and isolated analog signal. The frequency sensor 105 transmits detailed information to the display screen 106, which is displayed in the digital form of the frequency value. The staff can intuitively and accurately view the working status of the output power of the inverter 104 through the display screen 106. The protective film 107 protects the display screen 106 to prevent the display screen 106 from being scratched. The explosion-proof coating 108 is a coating with special functions. It is composed of various raw materials such as flame retardants, fillers, diluents, etc. It can prevent the spread of fire or reduce the power of explosion in dangerous environments such as explosions or fires.

[0024] The heat dissipation mechanism 2 includes an air inlet 201, a filter 202, a motor 203, a fan 204, a semiconductor refrigerator 205, a heat dissipation fin 206, an air outlet 207, a protective net 208, a sealing door panel 209 and a mounting plate 210. The air inlet 201 is fixedly arranged at the rear end of the heat dissipation box 102, the filter 202 is fixedly installed at the inner end of the air inlet 201, the motor 203 is fixedly installed at the rear end of the inner end of the heat dissipation box 102, the fan 204 is fixedly installed at the front end of the transmission end of the motor 203, the semiconductor refrigerator 205 is fixedly installed at the lower end of the heat dissipation box 102, the cooling end of the semiconductor refrigerator 205 extends to the interior of the heat dissipation box 102, the heat dissipation fin 206 is fixedly installed at the outer end of the heating end of the semiconductor refrigerator 205, the air outlet 207 is fixedly arranged at the lower end of the explosion-proof frequency conversion box body 101, and the protective net 208 is fixedly installed at the air outlet. At the inner end of the opening 207, the sealing door panel 209 is movably mounted in the middle of the front end of the explosion-proof frequency conversion box body 101, and the mounting plate 210 is fixedly mounted on the left and right ends of the lower end of the explosion-proof frequency conversion box body 101. The cooling end of the semiconductor refrigerator 205 cools and cools the heat dissipation box 102. The motor 203 drives the fan 204 to rotate and cooperates with the semiconductor refrigerator 205 to blow cold air into the explosion-proof frequency conversion box body 101 to cool and dissipate heat to prevent the explosion of the explosion-proof frequency conversion box body 101 caused by excessive temperature. The heating end of the semiconductor refrigerator 205 is located on the outside of the heat dissipation box 102. The heat dissipation fins 206 dissipate heat from the heating end of the semiconductor refrigerator 205 to improve the heat dissipation efficiency. The filter 202 filters the air to prevent dust in the air from entering through the air inlet 201. The protective net 208 protects the air outlet 207 to prevent mice from getting in.

[0025] Working principle: First, when using an explosion-proof frequency converter that can digitally display frequency, the frequency converter 104 provides the required power supply voltage according to actual needs, thereby achieving the purpose of energy saving and speed regulation. The frequency converter 104 also has protection functions, such as overcurrent, overvoltage, and overload protection. The frequency sensor 105 converts the input frequency into an analog signal with linear output of DC current and voltage and isolation. The frequency sensor 105 transmits detailed information to the display screen 106 and displays it in the digital form of frequency value. The staff can view the working status of the output power of the frequency converter 104 intuitively and accurately through the display screen 106. The protective film 107 protects the display screen 106 to prevent the display screen 106 from being worn. The explosion-proof coating 108 is a coating with special functions, which is composed of various raw materials such as flame retardants, fillers, and diluents. It can prevent the spread of fire or reduce the power of explosion in dangerous environments such as explosions or fires. A large amount of heat will be generated inside the explosion-proof frequency conversion box body 101 during operation. The cooling end of the semiconductor refrigerator 205 cools and cools the heat dissipation box 102. The motor 203 drives the fan 204 to rotate and cooperates with the semiconductor refrigerator 205 to blow cold air into the explosion-proof frequency conversion box body 101 to cool and dissipate heat, thereby avoiding the explosion caused by excessive temperature in the explosion-proof frequency conversion box body 101. The heating end of the semiconductor refrigerator 205 is located on the outside of the heat dissipation box 102. The heat dissipation fins 206 dissipate heat from the heating end of the semiconductor refrigerator 205 to improve the heat dissipation efficiency. The filter 202 filters the air to prevent dust in the air from entering through the air inlet 201. The protective net 208 protects the air outlet 207 to prevent mice from getting in.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An explosion-proof frequency converter capable of digitally displaying frequency, comprising a main body (1) and a heat dissipation mechanism (2), characterized in that: The heat dissipation mechanism (2) is located at the inner end of the main body mechanism (1), and the main body mechanism (1) includes an explosion-proof frequency conversion box body (101), a heat dissipation box (102) and a ventilation support plate (103), wherein the heat dissipation box (102) is fixedly mounted at the rear end of the explosion-proof frequency conversion box body (101), and the ventilation support plate (103) is fixedly mounted at the lower end of the inner end of the explosion-proof frequency conversion box body (101); The main body (1) further comprises a frequency converter (104), a frequency sensor (105), a display screen (106), a protective film (107) and an explosion-proof coating (108), wherein the frequency converter (104) is fixedly mounted on the upper end of the ventilation support plate (103), the frequency sensor (105) is fixedly mounted on the upper end of the frequency converter (104), the display screen (106) is fixedly mounted on the upper end of the front end of the explosion-proof frequency converter box body (101), the protective film (107) is fixedly mounted on the front end of the display screen (106), and the explosion-proof coating (108) is fixedly arranged on the inner end of the explosion-proof frequency converter box body (101).

2. The explosion-proof frequency converter capable of digitally displaying frequency according to claim 1, characterized in that: The heat dissipation mechanism (2) comprises an air inlet (201), a filter (202), a motor (203), a fan (204), a semiconductor refrigerator (205), heat dissipation fins (206), an air outlet (207), a protective net (208), a sealing door panel (209) and a mounting plate (210). The air inlet (201) is fixedly arranged at the rear end of the heat dissipation box (102).

3. The explosion-proof frequency converter capable of digitally displaying frequency according to claim 2, characterized in that: The filter (202) is fixedly mounted on the inner end of the air inlet (201), and the motor (203) is fixedly mounted on the rear end of the inner end of the heat dissipation box (102).

4. The explosion-proof frequency converter capable of digitally displaying frequency according to claim 3, characterized in that: The fan (204) is fixedly mounted on the front end of the transmission end of the motor (203), the semiconductor cooler (205) is fixedly mounted on the lower end of the heat dissipation box (102), and the cooling end of the semiconductor cooler (205) extends into the interior of the heat dissipation box (102).

5. The explosion-proof frequency converter capable of digitally displaying frequency according to claim 4, characterized in that: The heat dissipation fin (206) is fixedly mounted on the outer end of the heating end of the semiconductor refrigerator (205), the air outlet (207) is fixedly arranged at the lower end of the explosion-proof frequency converter body (101), and the protective net (208) is fixedly mounted on the inner end of the air outlet (207).

6. The explosion-proof frequency converter capable of digitally displaying frequency according to claim 5, characterized in that: The sealing door panel (209) is movably mounted on the middle portion of the front end of the explosion-proof frequency converter box body (101), and the mounting plate (210) is fixedly mounted on the left and right ends of the lower end of the explosion-proof frequency converter box body (101).

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