Novel electric corrosion prevention structure

Abstract

The utility model discloses a novel electric corrosion prevention structure which comprises an end cover, an iron core, a conducting wire and a conducting terminal, the end cover is arranged at one end of the iron core, and the conducting terminal is arranged on the side wall of the iron core; the conducting wire is arranged on the iron core in a penetrating manner, and the conducting wire is not conducted with the iron core; the conduction terminal is conducted with the iron core; the conducting terminal and the conducting wire are respectively connected with a circuit board, and the circuit of the conducting terminal is disconnected from the circuit of the conducting wire; according to the application, the shaft voltage amplitude can be effectively reduced, so that the generation of shaft current is reduced, after the shaft voltage amplitude is reduced, the shaft voltage waveform is stable without disorder and peak after the motor operates for a long time, and the judgment requirement on the shaft voltage is met.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a novel anti-electro-erosion structure. Background Technology

[0002] The existing motors have a structure with two end covers and a conductive stator core. When performing shaft voltage tests, issues arise such as large shaft voltage amplitudes and, after prolonged motor operation, erratic shaft voltage waveforms with spikes. There is a possibility of discharge in the inner and outer rings and ball bearings, with shaft current flowing through them, causing electrical corrosion in the bearings and abnormal noise from the motor. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a novel anti-electro-erosion structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel anti-electro-erosion structure, comprising an end cap, an iron core, a conductive wire, and a conductive terminal. The end cap is disposed at one end of the iron core, and the conductive terminal is disposed on the side wall of the iron core. The conductive wire passes through the iron core and is not conductive to the iron core. The conductive terminal is conductive to the iron core. The conductive terminal and the conductive wire are respectively connected to a circuit board, and the lines of the conductive terminal and the lines of the conductive wire are connected through a capacitor.

[0006] Furthermore, the conductor includes a contact part, a connecting part, and a connecting part. The contact part is perpendicular to the connecting part and contacts the end cap. The connecting part passes through the side wall of the iron core, and the connecting part is connected to the circuit board through a wire.

[0007] Furthermore, the connecting part has a spiral structure.

[0008] Furthermore, the conductive terminal includes a first contact plate, a second contact plate, and a connecting plate. The connecting plate and the second contact plate are respectively disposed on the first contact plate. The second contact plate is in contact with the iron core and conducts electricity. The first contact plate is connected to the circuit board.

[0009] Furthermore, the iron core is provided with a connecting groove corresponding to the connecting plate.

[0010] The advantages of this invention are: it can effectively reduce the shaft voltage amplitude, thereby reducing the generation of shaft current, and after the shaft voltage amplitude is reduced, the shaft voltage waveform remains stable without disturbance or spikes during long-term motor operation, thus meeting the requirements for shaft voltage evaluation. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0012] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the novel anti-electro-erosion structure in one embodiment of the present invention.

[0015] Figure 2 for Figure 1 Enlarged view of point A in the image.

[0016] Figure 3 for Figure 1 A schematic diagram of the circuit board of the novel anti-electro-erosion structure in the illustrated embodiment.

[0017] The meanings of the reference numerals in the figure are as follows:

[0018] 101. Iron core; 102. Connecting part; 103. Contact part; 104. Connecting part; 105. First contact plate; 106. Connecting plate; 107. Second contact plate; 108. Circuit board; 109. Capacitor. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0024] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-3 As shown, a novel anti-electro-erosion structure includes an end cap, an iron core 101, a conductive wire, and a conductive terminal. The end cap is located at one end of the iron core 101, and the conductive terminal is located on the side wall of the iron core 101. The conductive wire passes through the iron core 101 and is not conductive to the iron core 101. The conductive terminal is conductive to the iron core 101. The conductive terminal and the conductive wire are respectively connected to a circuit board 108, and the circuit of the conductive terminal is disconnected from the circuit of the conductive wire.

[0026] Furthermore, the conductive wire includes a contact portion 103, a connecting portion 102, and a connecting portion 104. The contact portion 103 is perpendicular to the connecting portion 102 and contacts the end cap. The connecting portion 102 passes through the side wall of the iron core 101. The connecting portion 104 is connected to the circuit board 108 through a wire. The connecting portion 104 has a spiral structure to increase the connection effect between the conductive wire and the wire.

[0027] Furthermore, the conductive terminal includes a first contact plate 105, a second contact plate 107, and a connecting plate 106. The connecting plate 106 and the second contact plate 107 are respectively disposed on the first contact plate 105. The second contact plate 107 is in contact with the iron core 101 and conducts electricity. The first contact plate 105 is connected to the circuit board 108. The iron core 101 is provided with a connecting groove corresponding to the connecting plate 106. The connecting plate 106 is inserted into the connecting groove to connect and fix the conductive terminal.

[0028] Furthermore, a capacitor 109 is provided on the circuit board 108. The wires of the conducting terminal and the wires of the conducting line are connected through the capacitor 109, and the lines of the conducting terminal and the lines of the conducting line are disconnected through the capacitor 109.

[0029] By innovatively designing the conductive structure of the bearing end caps on both sides and adding capacitors between the stator core 101 and the end caps on both sides, the shaft voltage amplitude can be effectively reduced, thereby reducing the generation of shaft current. After the shaft voltage amplitude is reduced, the shaft voltage waveform remains stable without disturbance or spikes during long-term motor operation, meeting the requirements for shaft voltage evaluation.

[0030] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A novel anti-electrolytic corrosion structure, characterized in that: The device includes an end cap, an iron core, a conductive wire, and a conductive terminal. The end cap is located at one end of the iron core, and the conductive terminal is located on the side wall of the iron core. The conductive wire passes through the iron core and is not conductive to the iron core. The conductive terminal is conductive to the iron core. The conductive terminal and the conductive wire are respectively connected to a circuit board, and the circuit of the conductive terminal and the circuit of the conductive wire are connected through a capacitor.

2. The novel anti-electrolytic corrosion structure according to claim 1, characterized in that: The conductive wire includes a contact portion, a connecting portion, and a connecting portion. The contact portion is perpendicular to the connecting portion and contacts the end cap. The connecting portion passes through the side wall of the iron core, and the connecting portion is connected to the circuit board via a wire.

3. The novel anti-electrolytic corrosion structure according to claim 1, characterized in that: The connecting part has a spiral structure.

4. The novel anti-electrolytic corrosion structure according to claim 1, characterized in that: The conductive terminal includes a first contact plate, a second contact plate, and a connecting plate. The connecting plate and the second contact plate are respectively disposed on the first contact plate. The second contact plate is in contact with and conducts electricity to the iron core. The first contact plate is connected to the circuit board.

5. The novel anti-electrolytic corrosion structure according to claim 1, characterized in that: The iron core is provided with a connecting groove corresponding to the connecting plate.

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