Inner sliding ring winding motor air-air cooler main body and sliding ring cooling separation structure

Abstract

This invention provides a separate cooling structure for the main body and slip ring of an internally mounted rotary motor cooler, belonging to the field of motor heat exchange technology. It includes a motor body cooling structure and a slip ring cooling structure. The former comprises several first heat exchange tubes; the latter comprises several second heat exchange tubes. A first sealing element is fixedly installed at one end of each of the first and second heat exchange tubes near the second heat exchange tubes; a second sealing element is fixedly installed at one end of each of the second heat exchange tubes near the first heat exchange tubes; a cavity is formed between the first and second sealing elements; the first and second heat exchange tubes are correspondingly arranged in parallel. This separate cooling structure provides good sealing performance, preventing carbon powder from the slip ring from transferring into the motor body, thereby reducing motor maintenance costs and extending its service life. Even in the rare cases where the sealing elements are not properly sealed, the carbon powder in the slip ring can flow through the cavity formed by the double-separated tube sheet to the bottom of the slip ring cooling structure, preventing it from entering the motor body.

Description

Technical Field

[0001] This invention belongs to the field of motor heat exchange technology, and in particular relates to a main body of an internal slip ring coil motor air cooler and a slip ring cooling separation structure. Background Technology

[0002] In existing technologies, the cooler body and slip ring cooling section are still manufactured as a single unit. If the sealing between the internal baffle (tube sheet) and the cooling pipes is not adequate, carbon powder from the main motor slip ring chamber can enter the main motor cavity through the cooler. Over time, this can lead to severe contamination inside the main motor cavity, and more seriously, damage to internal motor components, affecting usability and causing significant economic losses.

[0003] Therefore, it is essential to develop a new cooler structure that can solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the problems and shortcomings of existing technologies, this invention provides a separate cooling structure for the slip ring and the air cooler body of an inner slip ring coil motor. This structure can solve the problem of slip ring carbon powder being partially transferred to the motor body through the cooler, thereby reducing various motor repairs caused by related issues and improving product quality.

[0005] The specific technical solution provided by this invention is: a separate cooling structure for the main body and slip ring of an internal slip ring coil motor, comprising a motor body cooling structure and a slip ring cooling structure. The motor body cooling structure includes a plurality of first heat exchange tubes; the slip ring cooling structure includes a plurality of second heat exchange tubes. A first sealing element is fixedly disposed at one end of each of the first heat exchange tubes near the second heat exchange tubes; a second sealing element is fixedly disposed at one end of each of the second heat exchange tubes near the first heat exchange tubes. The first and second sealing elements prevent carbon powder inside the slip ring from entering the motor body through the internal airflow path and / or the external airflow path.

[0006] In one embodiment, a cavity is formed between the first seal and the second seal. The cavity provides a remedy in case the seal cannot achieve 100% sealing, allowing the carbon powder in the slip ring to flow through the cavity channel to the bottom of the slip ring cooling structure without entering the motor body.

[0007] In one embodiment, the end of the first heat exchange tube closest to the second heat exchange tube is expanded to connect to a first partition tube sheet; the end of the second heat exchange tube closest to the first heat exchange tube is expanded to connect to a second partition tube sheet. Regarding the blocking effect of the internal airflow circulation on toner, using a double partition tube sheet provides a better blocking effect than using a single partition tube sheet.

[0008] In one embodiment, a cavity is formed between the first partition tube sheet and the second partition tube sheet.

[0009] In one embodiment, the plurality of first heat exchange tubes are arranged in parallel; the plurality of second heat exchange tubes are also arranged in parallel. This parallel and closely spaced arrangement of the heat exchange tubes achieves an optimal quantity and effectively dissipates heat.

[0010] In one embodiment, the first heat exchange tube corresponds to the second heat exchange tube. The first heat exchange tube in the motor body cooling structure corresponds one-to-one with the second heat exchange tube in the slip ring cooling structure, which helps to remove a small amount of carbon powder in the slip ring through the external air duct.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The internal slip ring coil motor air cooler body and slip ring cooling separation structure provided by the present invention have good sealing performance, which can avoid the problem of carbon powder in the slip ring transferring into the motor body, thereby reducing the motor maintenance cost and extending its service life; even in the rare cases where the seal is not sealed well, the carbon powder in the slip ring can flow to the bottom of the slip ring cooling structure through the cavity formed by the double partition tube plate, so as not to let it enter the motor body. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a simplified structural diagram of an internal sliding wound coil motor;

[0015] Figure 2 This is a schematic diagram of the cooler structure provided by the present invention. Detailed Implementation

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0018] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In the embodiments of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; a connection can mean a mechanical connection or an electrical connection; a link can mean a direct connection or an indirect connection through an intermediate medium, and can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] It should also be noted that 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] See Figure 1 and Figure 2 The preferred embodiment of the present invention provides an internal slip ring coil motor air cooler body and slip ring cooling separation structure, comprising: a motor body cooling structure 1 and a slip ring cooling structure 2, wherein the motor body cooling structure 1 includes a plurality of first heat exchange tubes 4; the slip ring cooling structure 2 includes a plurality of second heat exchange tubes 5, a first sealing element 3 is fixedly disposed at one end of the first heat exchange tubes 4 near the second heat exchange tubes 5; a second sealing element 6 is fixedly disposed at one end of the second heat exchange tubes near the first heat exchange tubes. The first and second sealing elements are configured to prevent carbon powder in the slip ring from entering the motor body part 8 through the internal air circulation and / or external air circulation.

[0022] In this preferred embodiment, the first heat exchange tube 4 is expanded to a first partition tube sheet at one end near the second heat exchange tube 5; the second heat exchange tube 5 is expanded to a second partition tube sheet at one end near the first heat exchange tube 4. In other words, the first sealing element is the first partition tube sheet, and the second sealing element is the second partition tube sheet. Regarding the blocking effect of the internal airflow circulation on toner, the double partition tube sheet provides a better blocking effect than the single partition tube sheet.

[0023] In this preferred embodiment, see Figure 1 The dotted line indicates that several first heat exchange tubes and several second heat exchange tubes are arranged in parallel, achieving an optimal arrangement for effective heat dissipation. The number of tubes can be determined based on the size of the fan and is not specifically limited.

[0024] In this preferred embodiment, the first heat exchange tube 4 corresponds to the second heat exchange tube 5. The first heat exchange tube in the motor body cooling structure corresponds one-to-one with the second heat exchange tube in the slip ring cooling structure, which helps to remove a small amount of carbon powder in the slip ring through the external air duct.

[0025] The principle of the internal slip ring coil motor air cooler body and slip ring cooling separation structure provided in this preferred embodiment is as follows: The first heat exchange tube 4 of the motor body cooling structure 1 and the second heat exchange tube 5 of the slip ring cooling structure 2 are separated and independent of each other, and there are two partition tube plates in the middle, namely the first partition tube plate and the second partition tube plate. Even if the carbon powder in the motor slip ring part 7 can circulate in the internal air path due to the sealing problem between the heat exchange tube and the partition plate, it will not enter the motor body part 8, but will only enter the cavity 9 formed between the first partition tube plate and the second partition tube plate.

[0026] This will greatly improve the overall cleanliness of the motor's interior and enhance the reliability of its components.

[0027] In summary, by adopting this separate cooling structure for the main body and slip ring of the internal sliding wound coil motor air cooler, the internal structure of the cooler is more reasonable and simplified, and it also provides a feasible and effective cooling method for the internal sliding wound coil motor structure.

[0028] Manufacturing and installation of this invention: In terms of cooler manufacturing, the motor body cooling structure 1 and the slip ring cooling structure 2 must each be manufactured as a complete component, and then the two components are welded together to form a complete cooler component. The welding must be full weld, and it must be firm and reliable. The weld seam needs to be ground smooth. Other manufacturing methods are the same as conventional coolers; the installation method is the same as conventional coolers.

[0029] The above description only illustrates the technical solution of the present invention with reference to preferred embodiments. However, those skilled in the art should be able to make changes in specific implementation methods and application scope based on the ideas of the embodiments of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A separate cooling structure for the main body and slip ring of an internal slip ring wound coil motor air cooler, comprising a motor body cooling structure and a slip ring cooling structure, wherein, The motor body cooling structure includes a plurality of first heat exchange tubes; the slip ring cooling structure includes a plurality of second heat exchange tubes. The first heat exchange tube is fixedly fitted with a first sealing element at one end near the second heat exchange tube; the second heat exchange tube is fixedly fitted with a second sealing element at one end near the first heat exchange tube; a cavity is formed between the first sealing element and the second sealing element; a first partition tube plate is expanded to one end of the first heat exchange tube near the second heat exchange tube; a second partition tube plate is expanded to one end of the second heat exchange tube near the first heat exchange tube; a cavity is formed between the first partition tube plate and the second partition tube plate; the plurality of first heat exchange tubes are arranged in parallel; the plurality of second heat exchange tubes are arranged in parallel; and the first heat exchange tubes correspond to the second heat exchange tubes.

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