Self-ventilated exciter

Abstract

The utility model discloses a self-ventilation exciter, including body, chassis, first end cover, second end cover, stator and rotor, the rotor is installed with rectifier disc, the outer edge of rectifier disc is equipped with a plurality of fan blades, the body is installed on the chassis, first end cover and second end cover are installed in the left and right sides of body respectively, stator is connected with the body, the rotor is installed between first end cover, second end cover and body, be equipped with air inlet protection mechanism on first end cover, be equipped with the air inlet on first end cover, the air inlet is located the top of air inlet protection mechanism, through the embodiment of the utility model, realized without complicated external cooling equipment and ventilated cooling, simplified exciter structure, reduced the risk of cooling failure due to external equipment failure, improved the reliability and stability of exciter operation, reduced production cost and installation and debugging cost, have certain use value and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of exciter technology, and in particular to a self-ventilated exciter. Background Technology

[0002] Traditional exciters typically rely on external cooling equipment (such as fans or coolers) for heat dissipation. This design results in complex structures, high costs, and susceptibility to cooling failures due to external equipment malfunctions, affecting the exciter's reliability and stability. Furthermore, existing exciters lack effective protective designs for their air inlets and outlets. In harsh operating conditions, such as dusty or humid environments, foreign objects or dust can easily penetrate the interior, leading to component wear, decreased insulation performance, and even short circuits. While some improvement solutions attempt to optimize the ventilation structure, these often require significant modifications to the internal components of the exciter, increasing design complexity and modification costs.

[0003] In conclusion, a self-ventilated exciter is needed to address the shortcomings of existing technologies. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a self-ventilated exciter, which aims to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-ventilated exciter, comprising a body, a base frame, a first end cover, a second end cover, a stator, and a rotor. A rectifier disk is mounted on the rotor, and several fan blades are provided on the outer edge of the rectifier disk. The body is mounted on the base frame. The first end cover and the second end cover are respectively mounted on the left and right sides of the body. The stator is connected to the body. The rotor is mounted between the first end cover, the second end cover, and the body. The first end cover is provided with an air inlet protection mechanism, and an air inlet is opened on the first end cover. The air inlet is located directly above the air inlet protection mechanism. The air inlet protection mechanism is used to protect the air inlet and facilitate the removal of foreign objects. The second end cover is provided with an air outlet protection mechanism, and an air outlet is opened on the second end cover. The air outlet is located directly below the air outlet protection mechanism. The air outlet protection mechanism is used to prevent foreign objects from entering the air outlet under different operating conditions. The first end cover, the second end cover, and the main body form a cavity structure. These, along with the provided air inlet protection mechanism, air inlet, air outlet protection mechanism, and air outlet, create a flow cavity. The first end cover and the cavity inside the main body near the rectifier disk create negative pressure suction, while the second end cover and the cavity inside the main body near the rectifier disk create positive pressure exhaust. This eliminates the need for complex external cooling equipment, simplifying the exciter structure, reducing the risk of cooling failure due to external equipment malfunctions, improving the reliability and stability of the exciter's operation, and lowering production and installation costs. Furthermore, it reduces the need for alterations to the structure of various exciter components, thus lowering design and modification costs.

[0006] Furthermore, the air intake protection mechanism includes an air intake baffle, a connecting plate, and a handle. The air intake baffle is movably mounted on the first end cover via the connecting plate, and the handle is connected to the air intake baffle.

[0007] Furthermore, the air inlet is located at the bottom of the first end cover.

[0008] Furthermore, the first end cover is provided with angle irons for fitting the connecting plate, and the angle irons are symmetrically arranged on the left and right sides of the bottom of the air inlet.

[0009] Furthermore, the air outlet protection mechanism includes a bracket, an air outlet baffle, and a dust cover. The bracket is fixedly installed on the second end cover, the air outlet baffle is nested on the bracket, and the dust cover is hinged to the top side wall of the bracket.

[0010] Furthermore, the air outlet is fixedly located on the top of the second end cover, and the bracket is a hollow structure that is connected to the interior of the second end cover through the air outlet.

[0011] The beneficial effects of this utility model are:

[0012] 1. In this utility model, a cavity structure is formed by setting a first end cover, a second end cover, and a body. At the same time, the set air inlet protection mechanism, air inlet, air outlet protection mechanism, and air outlet form a flow cavity. The first end cover and the cavity inside the body near the rectifier disk form a negative pressure suction, and the second end cover and the cavity inside the body near the rectifier disk form a positive pressure exhaust. There is no need for complicated external cooling equipment, which simplifies the exciter structure, reduces the risk of cooling failure due to external equipment failure, improves the reliability and stability of exciter operation, reduces production costs and installation and commissioning costs, and at the same time reduces the need to change the structure of various components of the exciter, thus reducing the cost of design and modification.

[0013] 2. In this utility model, by setting an air inlet protection mechanism and an air outlet protection mechanism, the exciter can be protected from air inlet and outlet during operation, preventing foreign objects from entering the body of the exciter.

[0014] 3. In this utility model, by setting a dust cover, the inclined opening and the air outlet screen installed in the middle can be completely covered when the machine is stopped, preventing fine dust from entering the second end cover, which has certain use value and promotion value. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic front view sectional view of the structure of this utility model.

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of the structure of section A in the middle.

[0018] Figure 3 for Figure 1 Enlarged schematic diagram of section B in the middle.

[0019] Figure 4 for Figure 1 Enlarged schematic diagram of the C-section structure.

[0020] In the diagram: 100-body; 10-base frame; 20-first end cover; 21-air inlet protection mechanism; 211-air inlet baffle; 212-connecting plate; 213-handle; 22-air inlet; 23-angle iron; 30-second end cover; 31-air outlet protection mechanism; 311-bracket; 312-air outlet baffle; 313-dust cover; 32-air outlet; 40-stator; 50-rotor; 60-rectifier plate; 61-fan blade. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0023] like Figure 1 ,2 As shown in Figures 3 and 4, a self-ventilated exciter includes a body 100, a base frame 10, a first end cover 20, a second end cover 30, a stator 40, and a rotor 50. A rectifier disk 60 is mounted on the rotor 50, and several fan blades 61 are provided on the outer edge of the rectifier disk 60. The body 100 is mounted on the base frame 10. The first end cover 20 and the second end cover 30 are respectively mounted on the left and right sides of the body 100. The stator 40 is connected to the body 100, and the rotor 50 is mounted on the first end cover 20, the second end cover 30, and the second end cover 30. Between the main body 100, the first end cover 20 is provided with an air inlet protection mechanism 21, and the first end cover 20 is provided with an air inlet 22. The air inlet 22 is located directly above the air inlet protection mechanism 21. The air inlet protection mechanism 21 is used to protect the air inlet and facilitate the cleaning of foreign objects. The second end cover 30 is provided with an air outlet protection mechanism 31, and the second end cover 30 is provided with an air outlet 32. The air outlet 32 ​​is located directly below the air outlet protection mechanism 31. The air outlet protection mechanism 31 is used to prevent foreign objects from entering the air outlet 32 ​​under different working conditions.

[0024] In one implementation, the cavity formed between the first end cover 20, the second end cover 30, and the main body 100 is divided into a negative pressure suction cavity and a positive pressure exhaust cavity. The first end cover 20, the second end cover 30, and the main body 100 form a cavity structure, which, together with the provided air inlet protection mechanism 21, air inlet 22, air outlet protection mechanism 31, and air outlet 32, forms a flow cavity. The first end cover 20 and the cavity inside the main body 100 near the rectifier disk 60 form a negative pressure suction, and the second end cover 30 and the cavity inside the main body 100 near the rectifier disk 60 form a positive pressure exhaust. This eliminates the need for complex external cooling equipment, simplifies the exciter structure, reduces the risk of cooling failure due to external equipment malfunction, improves the reliability and stability of the exciter operation, reduces production and installation / commissioning costs, and minimizes changes to the structure of various exciter components, thus reducing design and modification costs.

[0025] In one embodiment, the air intake protection mechanism 21 includes an air intake baffle 211, a connecting plate 212, and a handle 213. The air intake baffle 211 is movably mounted on the first end cover 20 via the connecting plate 212, and the handle 213 is connected to the air intake baffle 211.

[0026] In one implementation, the air inlet 22 is located at the bottom of the first end cover 20.

[0027] In one embodiment, the first end cover 20 is provided with angle iron 23 for fitting the connecting plate 212, and the angle iron 23 is symmetrically arranged on the left and right sides of the bottom of the air inlet 22.

[0028] In one embodiment, the air outlet protection mechanism 31 includes a bracket 311, an air outlet baffle 312, and a dust cover 313. The bracket 311 is fixedly installed on the second end cover 30, the air outlet baffle 312 is nested on the bracket 311, and the dust cover 313 is hinged to the top side wall of the bracket 311.

[0029] In one embodiment, the air outlet 32 ​​is fixedly opened on the top of the second end cover 30, and the bracket 311 is a hollow structure and is connected to the inside of the second end cover 30 through the air outlet 32.

[0030] In one embodiment, the top of the bracket 311 is provided with an inclined opening through which the air outlet baffle 312 is installed. The bracket 311 is provided with a hinge on one side near the bottom of the inclined opening for movably connecting the dust cover 313. The dust cover 313 can completely cover the inclined opening and the air outlet baffle 312 installed in the middle when the machine is stopped, preventing fine dust from entering the second end cover 30.

[0031] The working principle of this utility model is as follows: When in use, the rotor 50 rotates, causing the fan blades 61 on the outer edge of the rectifier disk 60 to rotate at high speed with the rotor, driving the air flow; a negative pressure cavity is formed on the side of the first end cover 20 and the body 100 near the rectifier disk, and external air is drawn into the cavity through the air inlet 22; a positive pressure cavity is formed in the area corresponding to the second end cover 30 and the body 100, and hot air is discharged through the air outlet 32; the air flow path is: air inlet 22 → negative pressure cavity → flows through the heat dissipation surface of the stator 40 and the rotor 50 → positive pressure cavity → air outlet 32. This process requires no external cooling equipment, relying on the rotor's own rotation to achieve continuous ventilation and heat dissipation. During this process, the air intake baffle 211 of the air intake protection mechanism 21 filters large particles of foreign matter, and can be quickly disassembled and cleaned through the handle 213 to prevent the air intake 22 from being blocked. The air outlet baffle 312 of the air outlet protection mechanism 31 prevents foreign matter from entering in reverse. The dust cover 313 flips up to cover the air outlet 32 ​​when the machine is stopped, blocking dust from entering. The first end cover 20, the second end cover 30 and the body 100 together form a large cavity structure. Combining the negative pressure and positive pressure effects, a directional airflow is formed. The fan blades 61 of the rectifier disk 60 further accelerate the airflow and improve the heat dissipation efficiency.

[0032] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A self-ventilated exciter, comprising a body (100), a base frame (10), a first end cover (20), a second end cover (30), a stator (40), and a rotor (50), wherein a rectifier disk (60) is mounted on the rotor (50), and the outer edge of the rectifier disk (60) is provided with a plurality of fan blades (61), characterized in that, The main body (100) is mounted on the base frame (10). The first end cover (20) and the second end cover (30) are respectively mounted on the left and right sides of the main body (100). The stator (40) is connected to the main body (100). The rotor (50) is mounted between the first end cover (20), the second end cover (30), and the main body (100). The first end cover (20) is provided with an air inlet protection mechanism (21), and the first end cover (20) is provided with an air inlet (2). 2) The air inlet (22) is located directly above the air inlet protection mechanism (21). The air inlet protection mechanism (21) is used to protect the air inlet and facilitate the cleaning of foreign objects. The second end cover (30) is provided with an air outlet protection mechanism (31). The second end cover (30) is provided with an air outlet (32). The air outlet (32) is located directly below the air outlet protection mechanism (31). The air outlet protection mechanism (31) is used to prevent foreign objects from entering the air outlet (32) under different working conditions.

2. The self-ventilated exciter according to claim 1, characterized in that, The air intake protection mechanism (21) includes an air intake baffle (211), a connecting plate (212), and a handle (213). The air intake baffle (211) is movably installed on the first end cover (20) through the connecting plate (212), and the handle (213) is connected to the air intake baffle (211).

3. The self-ventilated exciter according to claim 2, characterized in that, The air inlet (22) is located at the bottom of the first end cover (20).

4. The self-ventilated exciter according to claim 3, characterized in that, The first end cover (20) is provided with angle iron (23) for fitting the connecting plate (212), and the angle iron (23) is symmetrically arranged on the left and right sides of the bottom of the air inlet (22).

5. The self-ventilated exciter according to claim 4, characterized in that, The air outlet protection mechanism (31) includes a bracket (311), an air outlet baffle (312), and a dust cover (313). The bracket (311) is fixedly installed on the second end cover (30), the air outlet baffle (312) is nested on the bracket (311), and the dust cover (313) is hinged to the top side wall of the bracket (311).

6. The self-ventilated exciter according to claim 5, characterized in that, The air outlet (32) is fixedly opened on the top of the second end cover (30), and the bracket (311) is a hollow structure and is connected to the inside of the second end cover (30) through the air outlet (32).

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