Drying oven device of motor winding

Abstract

According to the embodiment of the utility model, the drying oven device of the motor winding comprises a drying oven tank body, and the drying oven tank body comprises a winding assembly erected in the drying oven tank body; the first air inlet is formed in the side wall of the oven tank body; the air inlet channel is arranged between the side wall of the oven tank body and the winding assembly, the air inlet channel comprises an air inlet and an air outlet, and the first air inlet is communicated with the air inlet; and the air guide component is arranged below the winding assembly and comprises a base plate with a plurality of fine holes and a second air inlet, and the second air inlet is communicated with the air outlet. The temperature in the drying oven can be ensured to be uniform, so that the drying degree of the winding assembly is ensured to be consistent, and the surface color of the winding assembly is consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator varnish dipping ovens, in particular to a motor winding oven device. Background Art

[0002] The insulation varnish treatment of the AC motor stator is a very important step in the manufacturing process of the motor stator, which is directly related to the service life of the motor. In order to improve the moisture resistance and corrosion resistance of the winding and the insulation strength, and to improve the mechanical strength, thermal conductivity and heat dissipation effect and delay aging, the motor winding must be treated with varnish.

[0003] In actual situations, after the winding is dipped in paint, it needs to be placed in an oven for drying. However, the existing dip-painting oven simply introduces hot air into the interior to dry the winding. Since the temperature near the hot air inlet is higher than the temperature at other locations, the temperature inside the oven is inconsistent, resulting in inconsistent drying degrees of the winding (for example, the surrounding areas of the winding are scorched while the middle is not dried yet), making the surface color of the winding uneven, increasing the defective rate of the product. Utility Model Content

[0004] The main purpose of the utility model is to provide a drying oven device for motor windings, so as to solve the problem that the existing drying oven has inconsistent drying degree for windings, resulting in uneven color of windings.

[0005] In order to solve the above problems, according to an embodiment of the utility model, an oven device for a motor winding is provided, which includes: an oven tank body, the oven tank body including: a winding assembly mounted in the oven tank body; a first air inlet arranged on the side wall of the oven tank body; an air inlet channel arranged between the side wall of the oven tank body and the winding assembly, the air inlet channel including an air inlet and an air outlet, the first air inlet being connected to the air inlet; an air guide component arranged below the winding assembly, the air guide component including a chassis with a plurality of fine holes and a second air inlet, the second air inlet being connected to the air outlet.

[0006] Wherein, the air guiding component further includes an extension portion extending downward from the edge of the chassis, and the second air inlet is formed on the extension portion.

[0007] Wherein, the bottom plate is a circular bottom plate with a plurality of fine holes evenly distributed.

[0008] Wherein, the winding assembly includes a plurality of motor stator windings arranged in sequence.

[0009] Wherein, the oven tank body further includes a support frame arranged below the winding assembly, and the support frame is used to support and fix the winding assembly.

[0010] According to the technical solution of the utility model, an air guide component is arranged below the winding assembly, and when the hot air enters the bottom of the oven tank, it can be evenly diffused upward, so that the temperature inside the oven tank is uniform, ensuring the uniform drying degree of the winding assembly, thereby ensuring the uniform surface color of the winding assembly and achieving the predetermined drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 is a three-dimensional schematic diagram of a drying oven device according to an embodiment of the utility model;

[0013] Figure 2 is a schematic diagram of a cross section of a drying oven device according to an embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the air guide component of the oven device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Although the present utility model specification may include embodiments in many different forms, for some preferred embodiments described in detail in the specification and shown in the drawings, it should be understood that: these contents disclosed in the present utility model specification should be regarded as schematic illustrations of the principles of the present utility model, and these shown embodiments are not intended to limit the scope of protection of the present utility model.

[0017] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] According to an embodiment of the utility model, a drying oven device for motor windings is provided, and the drying oven device is used to dry or dry the motor stator windings after varnish dipping, so the drying oven device can also be called a drying device or a drying device.

[0019] refer to Figure 1The oven device comprises an oven tank 1, and a winding assembly 11 is arranged inside the oven tank 1. Figure 2 It can be known that the winding assembly 11 in the oven tank body 1 may include a plurality of windings arranged in sequence, and these windings may also be arranged in multiple layers. It should be noted that the present application does not limit the type of winding assembly, and can be implemented using the stator winding assembly in the prior art. It only requires that the winding in the oven tank body is a winding assembly that has been dipped in paint (such as insulating paint) and needs to be dried. It should also be understood that the oven tank body 1 has a lid arranged on the top of the tank body. After opening the lid, the winding assembly dipped in insulating paint can be hoisted from the top of the oven tank body into the tank body, and can be dried after closing the lid. After the winding assembly is hoisted into the tank body, there is a certain space below the winding assembly, that is, at the bottom of the tank body. In the accompanying drawings, Figure 1 The figures shown do not include the cover, but Figure 2 The figures shown include the cover.

[0020] Continue to refer Figure 1 An air inlet 12 (first air inlet) is provided on the side wall of the oven tank 1. The air inlet 12 may be a circular air inlet and is connected to a device (not shown) for providing a hot air source. Therefore, the air inlet 12 may also be referred to as a hot air inlet. An air inlet channel 13 (refer to FIG. 1 ) is provided between the inner wall of the oven tank 1 and the winding assembly 11. Figure 2 ), the air inlet channel 13 is opposite to the air inlet 12, that is, the hot air entering the tank through the air inlet 12 directly enters the air inlet channel 13. The air inlet channel 13 includes an air inlet arranged at the top and an air outlet arranged at the bottom, the air inlet 12 is connected to the air inlet of the air inlet channel 13, and the air outlet is connected to the second air inlet 16 (described in detail below). In the present utility model, the air inlet channel 13 is a closed channel (only with openings at both ends). It should be noted that, Figure 2 The direction of the straight arrow in the figure indicates the flow direction of the hot air.

[0021] Combined with reference Figure 3 , an air guide component 15 is provided below the winding assembly 11, specifically, the air guide component 15 includes a circular bottom plate 151 and an extension portion 152 extending downward from the edge of the circular bottom plate 151. In the embodiment of the present application, the circular bottom plate 151 is evenly distributed with a plurality of fine holes, and the hot air can be evenly diffused upward through these fine holes. There is an opening on the extension portion 152, which is the second air inlet 16 provided on the extension portion. After the hot air passes through the air inlet channel 13, it enters the bottom of the oven tank body 1 through the air inlet 16.

[0022] refer to Figure 2 A support frame 18 is also provided below the winding assembly 11 , and the support frame 18 is used to support and fix the winding assembly 11 .

[0023] When the winding assembly 11 is dried, the hot air provided by the hot air source providing device (not shown) enters the interior of the oven tank 1 through the air inlet 12, and then the hot air enters the air inlet channel 13 and flows downward, and enters the bottom of the winding assembly 11 through the air inlet 16, that is, enters the bottom of the oven tank 1. After entering the bottom of the oven tank 1, the hot air will diffuse upward. In this process, the hot air is gathered by the extension part 152 and passes through the circular bottom plate 151 of the air guide component 15. The fine holes of the circular bottom plate 151 will evenly disperse the hot air passing through, so that the hot air diffuses and flows evenly from the bottom of the winding assembly 11 to the top. Please refer to the hot air flow direction. Figure 2 In this way, the internal temperature of the tank body 1 is uniform, so that the temperature around and in the middle of the winding assembly 11 is basically consistent, which can ensure that the drying degree of the winding assembly 11 is consistent, and the surface color of the winding assembly 11 is consistent, achieving the predetermined drying effect.

[0024] Although the present disclosure has been described in detail with reference to the specific embodiments of the present application, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the embodiments. Therefore, the present application is intended to cover the modifications and variations of the present application, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of the claims of the present application and their equivalents.

[0025] In addition, the features disclosed in the above description or claims or drawings, in their specific form or according to the mode for performing the disclosed functions or the method or process for obtaining the disclosed results, can be used to implement the present application in their different forms alone or in any combination of these features, as appropriate. Specifically, one or more features of any embodiment described in the present application can be combined with one or more features of any other embodiment described in the present application.

[0026] Protection may also be sought for any features disclosed in any one or more of the publications cited in conjunction with the present application and / or incorporated by reference.

Claims

1. A drying oven device for motor windings, characterized in that: include: The oven tank body comprises: A winding assembly mounted in the oven tank; A first air inlet disposed on the side wall of the oven tank; An air inlet channel is provided between the side wall of the oven tank and the winding assembly, the air inlet channel comprises an air inlet and an air outlet, and the first air inlet is connected to the air inlet; An air guide component is arranged below the winding assembly, and the air guide component includes a chassis with a plurality of fine holes and a second air inlet, and the second air inlet is connected to the air outlet.

2. The device according to claim 1, characterized in that The air guide component further includes an extension portion extending downward from an edge of the chassis, and the second air inlet is arranged on the extension portion.

3. The device according to claim 1, characterized in that The bottom plate is a circular bottom plate with a plurality of fine holes evenly distributed.

4. The device according to claim 1, characterized in that The winding assembly includes a plurality of motor stator windings arranged in sequence.

5. The device according to claim 1, characterized in that The oven tank body further comprises a support frame arranged below the winding assembly, and the support frame is used for supporting and fixing the winding assembly.

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