Insulating reel of compressor motor

Abstract

The utility model relates to a compressor motor insulation reel which is especially suitable for a motor with a three-phase winding adopting angle connection. The winding frame comprises an annular body, and nine winding parts are arranged on the inner side of the annular body in the radial direction. Three wide winding openings and three narrow winding openings are formed in the upper portion of the annular body, the width T of the wide winding openings is larger than the width t of the narrow winding openings, and the wide winding openings are head end outlets and tail end outlets of three-phase winding leads of the motor respectively. And three lead limiting clamps with downward openings are arranged near the three winding wide openings and are used for fixing the head ends of the leads and preventing the leads from loosening or falling off. Seven lead limiting protruding parts are arranged on the radial outer side of the annular body and distributed at different horizontal heights to form high and low distribution at different horizontal heights, and the lead limiting protruding parts are used for separating leads of windings of different phases and preventing virtual connection or short circuit. According to the utility model, the electrical performance and the mechanical stability of the motor are improved by optimizing the lead management and the winding design, and the motor has the advantages of simple structure, convenience in operation and high reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an insulating winding frame for a compressor motor. Background Art

[0002] In compressor motor applications, the design of the winding frame is crucial to ensuring efficient and reliable operation of the motor. Traditional insulation winding frames for compressor motors have several shortcomings that affect the overall performance and reliability of the motor. The following are two existing related technologies and their main problems:

[0003] CN208675000U: This technology discloses an insulating winding frame for a compressor motor. By providing a lead limiter and a V-shaped groove in the terminal fixing portion, it effectively solves the problems of easy breakage of the motor lead wires and the difficulty of inserting the neutral wire. However, this design is mainly suitable for motors with a neutral wire. It is not suitable for motors with three-phase windings using angle connection. These motors do not have a neutral wire, so the limiter and V-shaped groove design cannot achieve the expected effect.

[0004] CN219420399U: This technology discloses an insulating winding frame for a compressor motor. By providing a neutral wire storage portion with a baffle within the storage portion, this design addresses issues such as short circuits between the neutral wire and other conductive objects located near the coil or insulator due to vibration during compressor operation. However, this design is primarily designed for motors with a neutral wire. These features are not effectively applicable to motors with angle-connected three-phase windings, as there is no neutral wire to store and secure.

[0005] Although the two existing technologies mentioned above perform well in their respective application scenarios, they both fail to address the special requirements of winding and lead management for motors with three-phase windings connected in a angular pattern. Specifically:

[0006] Lead management issues: In motors with three-phase angular winding connections, lead management and fixation are particularly important. Traditional winding frame designs often fail to effectively fix and manage the leads. This is especially true during motor operation, where the leads are susceptible to vibration, leading to loosening or even short circuits.

[0007] Winding efficiency problem: In the traditional winding frame design, the lead wire entry and exit paths are not reasonable during the winding process, which easily causes interference and damage during the winding process, affecting the winding efficiency and quality.

[0008] Electrical safety issues: Due to the lack of effective lead limiting and separation measures, the leads of different phase windings are prone to virtual connection or short circuit, affecting the electrical safety and reliability of the motor. Utility Model Content

[0009] In order to make up for the above-mentioned deficiencies, the utility model provides an insulating winding frame for a compressor motor, which aims to meet the special needs of motors with three-phase windings connected in an angular connection in terms of winding and lead management.

[0010] The utility model is realized through the following technical scheme: a compressor motor insulating winding frame, including an annular body, characterized in that: the annular body is provided with a plurality of winding parts along the radial inner side; the upper part of the annular body is provided with three winding wide openings as lead head end outlets and three winding narrow openings as lead tail end outlets, and the width of the winding wide opening is greater than the width of the winding narrow opening; a lead limiting card with an opening facing downward is provided near the winding wide opening; the radial outer side of the annular body is provided with a plurality of lead limiting protrusions arranged at intervals, and the lead limiting protrusions are arranged in staggered layers in sequence.

[0011] Furthermore, the wide winding opening and the lead limiting clip are arranged within a semicircular range on one side of the annular body; the narrow winding opening and the lead limiting protrusion are arranged within a semicircular range on the other side of the annular body.

[0012] Furthermore, the number of the main winding parts is nine.

[0013] Furthermore, the number of the lead limiting protrusions is seven.

[0014] Furthermore, the shapes of the wide winding opening and the narrow winding opening are rectangular or elliptical.

[0015] Furthermore, the lead limiter has an inverted L shape, an inverted U shape, or an inverted V shape.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] Improve the reliability of lead management: by setting up special lead limit cards and lead limit protrusions, the stability and safety of the leads during the winding process and motor operation are ensured.

[0018] Improve winding efficiency: Reasonable design of winding wide opening and winding narrow opening ensures smooth entry and exit of leads during the winding process, reducing interference and damage.

[0019] Enhanced electrical safety: The different height distributions of the lead limit protrusions effectively separate the leads of different phase windings to prevent adverse conditions such as virtual connection and short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the lead position of the utility model.

[0023] Explanation of the main component numbers in the figure: 1. Ring-shaped body; 2. Winding part; 3. Wide winding opening; 4. Narrow winding opening; 5. Lead limit card; 6. Lead limit protrusion; 7. Schematic diagram of the path of one phase winding lead; 8. Schematic diagram of the path of the other phase winding lead.

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The other drawings obtained are all within the scope of protection required by the present invention. DETAILED DESCRIPTION

[0025] The following combination Figure 1-3 , the contents of the utility model are described in detail through specific embodiments. Example

[0026] The specific structure of the compressor motor insulation winding frame is as follows:

[0027] Annular body 1: The annular body 1 is the main structure of the winding frame, and is provided with a plurality of winding parts 2 along the radial inner side. There are nine winding parts 2, evenly distributed inside the annular body 1, which are used to fix and support the motor winding coils.

[0028] Winding opening design: Three wide winding openings 3 and three narrow winding openings 4 are provided on the upper part of the annular body 1. The width of the wide winding opening 3 is T, the width of the narrow winding opening 4 is t, and T>t. The wide winding opening 3 is used for the head end outlet of the three-phase winding lead of the motor, and the narrow winding opening 4 is used for the tail end outlet of the three-phase winding lead of the motor. The design of the wide winding opening 3 and the narrow winding opening 4 allows sufficient freedom for the lead during the winding process, which can avoid damage to the lead caused by interference with equipment tooling and other parts. At the same time, through different opening widths, the head and tail ends of the lead can be intuitively distinguished to prevent confusion, thereby improving winding efficiency and quality.

[0029] Lead stoppers 5: Three downward-facing lead stoppers 5 are located near the three winding openings 3. These stoppers secure the lead ends to the top of the winding frame, preventing them from loosening or falling off due to vibration during motor operation. This not only improves lead stability but also reduces the risk of lead damage.

[0030] Lead limiting protrusions 6: seven lead limiting protrusions 6 are arranged on the radial outer side of the annular body 1, which are arranged at different horizontal heights to form a high-low two different horizontal height distribution. Specifically, three lead limiting protrusions are arranged on the upper part of the outer side circumference in the axial direction, and four lead limiting protrusions are arranged on the lower part of the outer side circumference in the axial direction. The design of the lead limiting protrusions 6 can effectively separate the lead wires of different phase windings and prevent virtual connection or short circuit between the lead wires of different phase windings, thereby improving electrical safety.

[0031] The use method of the utility model:

[0032] Winding preparation: the lead wires of the three-phase winding of the motor are introduced from three winding wide openings 3 on the upper part of the annular body 1, and the lead wire first end is fixed on the upper part of the winding frame by the lead wire limiting clamp 5.

[0033] Winding process: according to the predetermined winding path, the winding coil is wound on the winding part 2 on the inner side of the annular body 1 in sequence. After winding, the lead wire tail end is introduced from three winding narrow openings 4 on the upper part of the annular body 1.

[0034] Lead arrangement: after the lead wire tail end is introduced from the winding narrow opening 4, it is arranged along the lead limiting protrusion 6 on the radial outer side of the annular body 1, according to Figure 3 the path diagram 7 of one phase winding lead and the path diagram 8 of another phase winding lead, to ensure that the lead wires of different phase windings are effectively isolated in space to prevent virtual connection or short circuit.

[0035] Final fixation: after winding and lead arrangement are completed, check whether all lead wires are fixed firmly to ensure that the lead wires will not be loose or fall off during the operation of the motor.

Claims

1. A compressor motor insulating winding frame, comprising an annular body, characterized in that: The annular body is provided with several winding parts along the radial inner side; the upper part of the annular body is provided with three wide winding openings serving as lead head end outlets and three narrow winding openings serving as lead tail end outlets, and the width of the wide winding opening is greater than the width of the narrow winding opening; a lead limiting card with an opening facing downward is provided near the wide winding opening; the radial outer side of the annular body is provided with several lead limiting protrusions arranged at intervals, and the lead limiting protrusions are staggered in sequence.

2. The compressor motor insulation winding frame according to claim 1, characterized in that: The wide winding opening and the lead limiting clamp are arranged within a semicircular range on one side of the annular body; the narrow winding opening and the lead limiting protrusion are arranged within a semicircular range on the other side of the annular body.

3. The compressor motor insulation winding frame according to claim 1, characterized in that: The number of the winding parts is nine.

4. The compressor motor insulation winding frame according to claim 1, characterized in that: The number of the lead limiting protrusions is seven.

5. The compressor motor insulation winding frame according to claim 1, characterized in that: The shapes of the wide winding opening and the narrow winding opening are rectangular or elliptical.

6. The compressor motor insulation winding frame according to claim 1, characterized in that: The lead limit card has an inverted L shape, an inverted U shape, or an inverted V shape.

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