Frequency converter with cooling function for scraper conveyer

Abstract

The utility model discloses a frequency converter with a cooling function for a scraper conveyer, and relates to the technical field of frequency converters. The frequency converter with the cooling function for the scraper conveyer comprises scraper conveying equipment and a protection cabinet structure, the protection cabinet structure is arranged on the outer side of the scraper conveying equipment, and a heat dissipation type frequency converter is arranged in the protection cabinet structure; according to the frequency converter with the cooling function for the scraper conveyer, through the arrangement of the heat dissipation type frequency converter and the cooperative work of the compressor, the evaporator and the condenser, cooling liquid is promoted to circularly flow in the heat dissipation copper pipe, when the cooling liquid flows in the copper pipe, heat can be rapidly taken away from the surface of the frequency converter body, and the cooling effect is improved. The cooling mechanism can ensure that heat generated in the operation process of the equipment is dissipated in time, so that the normal working temperature of the equipment is maintained, the service life of the equipment is prolonged, and the operation efficiency and stability of the equipment are ensured.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, specifically to a frequency converter with cooling function for scraper conveyors. Background Technology

[0002] A scraper conveyor is a conveyor that uses a scraper chain to transport bulk materials within a trough. In coal mining faces, scraper conveyors not only transport coal and materials but also serve as the running track for the coal mining machine, making them an indispensable piece of equipment in modern coal mining technology.

[0003] In the unique working environment of underground coal mines, scraper conveyors need to meet various operating conditions, including soft start, speed regulation or constant speed operation under load, normal shutdown and emergency shutdown, and intelligent speed adjustment based on coal quantity. Therefore, frequency converters are required to adjust the operating status of scraper conveyors in a timely manner.

[0004] According to the patent publication number CN222321823U, "A grounding structure for a heat sink of a frequency converter and a frequency converter" proposes that "the circuit of a frequency converter will generate heat due to losses during operation, and it is necessary to place an aluminum heat sink on the outer casing to dissipate heat from the heat-generating components of the frequency converter".

[0005] However, the above solution still has some shortcomings in actual use. The technical solution uses aluminum heat sinks to dissipate heat from the frequency converter, but the heat dissipation effect of using only aluminum heat sinks is poor, which means that the heat generated by the frequency converter during operation cannot be dissipated quickly. Utility Model Content

[0006] This invention provides a frequency converter with cooling function for scraper conveyors to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a frequency converter with cooling function for a scraper conveyor, comprising a scraper conveyor and a protective cabinet structure, wherein the protective cabinet structure is provided on the outside of the scraper conveyor and a heat dissipation type frequency converter is provided inside the protective cabinet structure;

[0008] The heat-dissipating inverter includes an inverter body, on the back side of which a heat dissipation device and two mounting side plates are fixedly installed. The inverter body is connected to the interior of the protective cabinet structure through the mounting side plates.

[0009] The heat dissipation device includes a compressor, an evaporator, and a condenser, which are connected to each other. A heat dissipation copper pipe is fixedly connected between the compressor and the evaporator, and coolant is injected into the heat dissipation copper pipe.

[0010] Furthermore, the protective cabinet structure includes a cabinet body, a back panel is fixedly installed on the back side of the cabinet body, and the cabinet body is connected to the outside of the scraper conveying equipment through the back panel.

[0011] Furthermore, an exhaust fan is fixedly installed on the side of the cabinet, and a dustproof net is movably attached to the outer side of the exhaust fan.

[0012] Furthermore, an electric slide rail is fixedly installed on the front side of the back plate, and the movable end of the electric slide rail is slidably connected to a mounting plate via an electric slider. A cleaning brush is movably engaged on the front side of the mounting plate.

[0013] Furthermore, the compressor, evaporator, and condenser are all located between two mounting side plates, with the compressor and evaporator positioned above the condenser.

[0014] Compared with the prior art, this utility model provides a frequency converter with cooling function for scraper conveyors, which has the following beneficial effects:

[0015] This scraper conveyor uses a frequency converter with a cooling function. By setting up a heat-dissipating frequency converter, the compressor, evaporator, and condenser work together to promote the circulation of coolant in the heat-dissipating copper pipes. When the coolant flows in the copper pipes, it can quickly carry away heat from the surface of the frequency converter body, thereby achieving rapid cooling. This cooling mechanism can ensure that the heat generated by the equipment during operation is dissipated in a timely manner, thereby maintaining the normal operating temperature of the equipment, extending its service life, and ensuring its operating efficiency and stability. In this way, not only is the performance of the frequency converter improved, but its reliability is also enhanced. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the protective cabinet structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation type frequency converter of this utility model;

[0019] Figure 4 This is a rear view of the inverter body of this utility model;

[0020] Figure 5 This is a schematic diagram of the heat dissipation device of this utility model.

[0021] In the diagram: 1. Scraper conveyor equipment; 2. Protective cabinet structure; 201. Cabinet body; 202. Back panel; 203. Exhaust fan; 204. Dustproof net; 205. Electric slide rail; 206. Electric slider; 207. Mounting plate; 208. Cleaning brush; 3. Heat-dissipating inverter; 301. Inverter body; 302. Mounting side panel; 303. Heat dissipation equipment; 304. Copper heat dissipation pipe; 305. Compressor; 306. Evaporator; 307. Condenser. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model discloses a frequency converter with cooling function for scraper conveyors, including scraper conveyor equipment 1 and protective cabinet structure 2. The protective cabinet structure 2 is provided on the outside of the scraper conveyor equipment 1, and a heat dissipation type frequency converter 3 is provided inside the protective cabinet structure 2.

[0024] The protective cabinet structure 2 includes a cabinet body 201, and a back panel 202 is fixedly installed on the back side of the cabinet body 201. The cabinet body 201 is connected to the outside of the scraper conveying equipment 1 through the back panel 202.

[0025] The heat-dissipating inverter 3 includes an inverter body 301. A heat dissipation device 303 and two mounting side plates 302 are fixedly installed on the back side of the inverter body 301. The inverter body 301 is connected to the interior of the protective cabinet structure 2 through the mounting side plates 302.

[0026] The heat dissipation device 303 includes a compressor 305, an evaporator 306, and a condenser 307. The compressor 305, evaporator 306, and condenser 307 are all located between two mounting side plates 302. The compressor 305 and evaporator 306 are located above the condenser 307. The compressor 305, evaporator 306, and condenser 307 are connected to each other. A heat dissipation copper pipe 304 is fixedly connected between the compressor 305 and evaporator 306. Coolant is injected into the heat dissipation copper pipe 304.

[0027] By setting up a heat-dissipating inverter 3, and through the coordinated work of components such as compressor 305, evaporator 306, and condenser 307, the coolant is circulated in the heat-dissipating copper pipe 304. When the coolant flows in the copper pipe, it can quickly carry away heat from the surface of the inverter body 301, thereby achieving rapid cooling. This cooling mechanism can ensure that the heat generated by the equipment during operation is dissipated in a timely manner, thereby maintaining the normal operating temperature of the equipment, extending its service life, and ensuring its operating efficiency and stability. In this way, not only is the performance of the inverter improved, but its reliability is also enhanced.

[0028] Specifically, an exhaust fan 203 is fixedly installed on the side of the cabinet 201, and a dustproof net 204 is movably attached to the outside of the exhaust fan 203.

[0029] In this implementation scheme, the ventilation fan 203 not only effectively promotes air circulation inside the protective cabinet structure 2 and helps with heat dissipation, but also effectively prevents dust and other impurities from entering the protective cabinet structure 2 through the dustproof net 204, ensuring the cleanliness of the internal environment and further protecting the normal operation of the heat dissipation inverter 3.

[0030] Specifically, an electric slide rail 205 is fixedly installed on the front side of the back plate 202. The movable end of the electric slide rail 205 is slidably connected to the mounting plate 207 via an electric slider 206. The working principle of the electric slide rail 205 and the electric slider 206 has been described in detail in a positioning device for an SMT placement machine with patent publication number CN202322179404.9, and will not be elaborated here. A cleaning brush 208 is movably engaged on the front side of the mounting plate 207.

[0031] In this embodiment, the electric slide rail 205 and the electric slider 206 work together to allow the mounting plate 207 to slide up and down along the back plate 202, thereby driving the cleaning brush 208 to clean the surface of the heat dissipation copper pipe 304. This design not only facilitates the cleaning of the heat dissipation copper pipe 304 and prevents dust and impurities from accumulating on the surface of the heat dissipation copper pipe 304 and affecting the heat dissipation effect, but also improves the efficiency and convenience of the cleaning work through electric drive.

[0032] Furthermore, the cleaning brush 208 is made of a wear-resistant and soft material to ensure that the surface of the heat dissipation copper pipe 304 will not be damaged during the cleaning process. At the same time, the shape and size of the cleaning brush 208 are matched with the heat dissipation copper pipe 304 to ensure the thoroughness and effectiveness of the cleaning.

[0033] When in use, the heat dissipation inverter 3 needs to be turned on during the operation of the scraper conveyor 1 to control the operation mode of the scraper conveyor 1 in real time.

[0034] During the process of heat dissipation inverter 3, a large amount of heat is generated. At this time, the ventilation fan 203 is started, which enables the ventilation fan 203 to improve the air flow efficiency inside the cabinet 201, so that the cabinet 201 forms an active air circulation channel, thereby improving the heat dissipation effect of the inverter body 301.

[0035] Furthermore, since the compressor 305, evaporator 306, and condenser 307 form a loop structure, the coolant is compressed into vapor in the compressor 305, and then condensed in the condenser 307. The condensed coolant then passes through the evaporator 306, where it evaporates. During the evaporation process, it absorbs heat from the surrounding environment, thereby lowering the temperature of the surrounding air. At the same time, the cold air comes into contact with the air and forms cold air, which then comes into contact with the coolant, thus cooling the coolant. This causes the coolant to flow continuously through the heat dissipation copper pipe 304, thereby continuously carrying away the heat generated by the inverter body 301, thus achieving a continuous cooling effect.

[0036] When the surface of the heat dissipation copper pipe 304 needs cleaning, simply activate the electric slide rail 205 to move the mounting plate 207 and cleaning brush 208 up and down along the heat dissipation copper pipe 304. After cleaning, turn off the electric slide rail 205 and remove the cleaning brush 208 from the heat dissipation copper pipe 304 for cleaning or replacement for the next use.

[0037] In summary, this scraper conveyor uses a frequency converter with a cooling function. By setting up a heat-dissipating frequency converter 3, and through the coordinated work of components such as compressor 305, evaporator 306, and condenser 307, the coolant circulates in the heat-dissipating copper pipe 304. When the coolant flows in the copper pipe, it can quickly remove heat from the surface of the frequency converter body 301, thereby achieving rapid cooling. This cooling mechanism can ensure that the heat generated during the operation of the equipment is dissipated in a timely manner, thereby maintaining the normal operating temperature of the equipment, extending its service life, and ensuring its operating efficiency and stability. In this way, not only is the performance of the frequency converter improved, but its reliability is also enhanced.

[0038] 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. A frequency converter with cooling function for an apron conveyor, comprising an apron conveyor device (1) and a protective cabinet structure (2), characterized in that: The outer side of the scraper conveying equipment (1) is provided with a protective cabinet structure (2), and the inside of the protective cabinet structure (2) is provided with a heat dissipation type frequency converter (3); The heat dissipation type frequency converter (3) comprises a frequency converter main body (301), and the back side of the frequency converter main body (301) is fixedly installed with a heat dissipation device (303) and two installation side plates (302); the frequency converter main body (301) is connected with the inside of the protective cabinet structure (2) through the installation side plates (302); The heat dissipation device (303) comprises a compressor (305), an evaporator (306) and a condenser (307), and the compressor (305), the evaporator (306) and the condenser (307) are communicated; the compressor (305) and the evaporator (306) are fixedly connected with a heat dissipation copper pipe (304), and the heat dissipation copper pipe (304) is filled with cooling liquid.

2. The frequency converter with cooling function for a scraper conveyor according to claim 1, characterized in that: The protective cabinet structure (2) comprises a cabinet body (201), and the back side of the cabinet body (201) is fixedly installed with a back plate (202); the cabinet body (201) is connected with the outer side of the scraper conveying equipment (1) through the back plate (202).

3. The frequency converter with cooling function for a scraper conveyor according to claim 2, characterized in that: The side end of the cabinet body (201) is fixedly installed with an air exchange fan (203), and the outer side of the air exchange fan (203) is movably clamped with a dust screen (204).

4. The frequency converter with cooling function for a scraper conveyor according to claim 2, characterized in that: The front side of the back plate (202) is fixedly installed with an electric sliding rail (205), the movable end of the electric sliding rail (205) is slidably connected with an installation plate (207) through an electric sliding block (206), and the front side of the installation plate (207) is movably clamped with a cleaning brush (208).

5. The frequency converter with cooling function for a scraper conveyor according to claim 1, characterized in that: The compressor (305), the evaporator (306) and the condenser (307) are located between the two installation side plates (302), and the compressor (305) and the evaporator (306) are located above the condenser (307).

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