Wire outlet structure of motor

Abstract

The utility model discloses a wire outlet structure of a motor, which comprises a cylindrical motor casing, an end cover and a lead sheath, a wire passing hole is arranged in the lead sheath, and a motor lead passes through the wire passing hole from the inside of the motor and extends out of the motor, and is characterized in that the outer circumference of the end cover is inwards concavely provided with a wire sheath mounting groove; the lead sheath comprises an inner side section, a left side section, an outer side section and a right side section, the inner side section, the left side section and the right side section are respectively embedded in the wire sheath mounting groove, the outer side surface of the outer side section is an arc surface, and the arc surface abuts against the inner surface of the motor shell. The motor lead extends out of the end cover, the problem that the motor lead is easy to damage when outgoing from the bottom of the motor shell is avoided, the wire protecting sleeve mounting groove is formed in the outer circumference of the end cover, machining is convenient, the outer side face of the lead protecting sleeve abuts against the inner surface of the motor shell, and limiting between the wire protecting sleeve and the motor shell is achieved. And meanwhile, the sealing between the end cover and the motor shell is enhanced.

Description

Technical Field

[0001] The utility model relates to a lead-out structure of an electric motor. Background Art

[0002] For existing AC motors, their lead wires are mostly led out at the bottom of the motor housing, that is, a lead-out hole is opened at a position on the side of the motor housing close to the bottom, a lead wire sheath is installed in the lead-out hole, a wire passing hole is provided in the lead wire sheath, and the motor lead wire passes through the wire passing hole from inside the motor and extends out of the motor. However, this lead-out method often causes damage to the motor lead wire after the load is installed and operates for a certain period of time. Content of the Utility Model

[0003] The utility model provides a lead-out structure of an electric motor to solve the problem that the motor lead wire is easily damaged when led out at the bottom of the motor housing in the prior art.

[0004] The technical solution of the utility model is realized as follows:

[0005] The purpose of the utility model is to provide a lead-out structure of an electric motor, including a cylindrical motor housing, an end cover and a lead wire sheath. A wire passing hole is provided in the lead wire sheath, and the motor lead wire passes through the wire passing hole from inside the motor and extends out of the motor. The characteristics are that: a wire protection sleeve installation groove is concavely provided inward on the outer circumference of the end cover, and the lead wire sheath includes an inner section, a left section, an outer section and a right section. The inner section, the left section and the right section are respectively embedded in the wire protection sleeve installation groove, and the outer side surface of the outer section is an arc surface, and the arc surface abuts against the inner surface of the motor housing.

[0006] The above-mentioned end cover is provided with avoidance grooves on both sides of the notch of the wire protection sleeve installation groove.

[0007] The bottom of the above-mentioned wire protection sleeve installation groove is arc-shaped.

[0008] The outer sides of the inner section, the left section and the right section of the above-mentioned lead wire sheath are provided with grooves, and the edge part of the end cover in the installation groove is nested in the grooves.

[0009] The above-mentioned inner section is provided with an installation notch.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The lead-out structure of the motor includes a motor housing, an end cover, and a lead sheath. A wire passing hole is provided in the lead sheath, and the motor lead extends out of the motor through the wire passing hole from the inside of the motor. It is characterized in that: a wire protection sleeve installation groove is concavely provided inward on the outer circumference of the end cover. The lead sheath includes an inner section, a left section, an outer section, and a right section. The inner section, the left section, and the right section are respectively installed in the wire protection sleeve installation groove. The outer side surface of the outer section is an arc surface, and the arc surface abuts against the inner surface of the motor housing. The motor lead extends out from the end cover, avoiding the problem that the motor lead is easily damaged when leading out at the bottom of the motor housing. The wire protection sleeve installation groove is opened on the outer circumference of the end cover, which is convenient for processing. The outer side surface of the lead sheath abuts against the inner surface of the motor housing to realize the limit between the lead protection sleeve and the motor housing, and at the same time strengthen the seal between the end cover and the motor housing.

[0012] 2. Other advantages of the present utility model are described in detail in the embodiment part. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the lead-out structure of the motor provided by the embodiment of the present utility model;

[0014] Figure 2 It is a schematic structural diagram of the end cover in the lead-out structure of the motor;

[0015] Figure 3 It is a schematic structural diagram of the lead sheath in the lead-out structure of the motor;

[0016] Figure 4 It is a front view of the lead sheath;

[0017] Figure 5 It is a side view of the lead sheath;

[0018] Figure 6 For Figure 5 The A-A cross-sectional view of. Detailed Description of the Embodiment

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Such as Figures 1 to 6As shown in the figure, the present embodiment provides an outgoing wire structure of a motor, which includes a cylindrical motor housing 3, an end cover 1, and a lead sheath 2. A wire passing hole 20 is provided in the lead sheath 2, and the motor lead extends out of the motor through the wire passing hole 20 from the inside of the motor. It is characterized in that: a wire protection sleeve installation groove 11 is concavely provided inward on the outer circumference of the end cover 1. The lead sheath 2 includes an inner section 21, a left section 22, an outer section 23, and a right section 24. The inner section 21, the left section 22, and the right section 24 are respectively installed in the wire protection sleeve installation groove 11. The outer surface of the outer section 23 is an arc surface, and the arc surface abuts against the inner surface of the motor housing 3.

[0021] For the outgoing wire structure of the motor, the motor lead extends out from the end cover 1, avoiding the problem that the motor lead is easily damaged when it exits at the bottom of the motor housing 3. The wire protection sleeve installation groove 11 is provided on the outer circumference of the end cover 1, which is convenient for processing. The outer surface 23 of the lead sheath 2 abuts against the inner surface of the motor housing 3 to realize the limit between the lead protection sleeve 2 and the motor housing 3, preventing the lead sheath 2 from sliding towards the motor housing 3, and at the same time strengthening the seal between the end cover 1 and the motor housing 3.

[0022] On both sides of the notch of the wire protection sleeve installation groove 11 of the above-mentioned end cover 1, there are avoidance grooves 12. The avoidance grooves 12 facilitate the lead sheath 2 to be stuck on the end cover 1.

[0023] The bottom of the above-mentioned wire protection sleeve installation groove 11 is arc-shaped. It is convenient for the stamping forming of the end cover 1 and also convenient for the outgoing wire of the motor lead.

[0024] On the outer sides of the inner section 21, the left section 22, and the right section 24 of the above-mentioned lead sheath 2, there are grooves 25. The edge part of the end cover 1 in the installation groove 11 is nested in the grooves 25. The grooves 25 facilitate the limit between the lead sheath 2 and the end cover 1, preventing the lead sheath 2 from shifting or falling off.

[0025] The above-mentioned inner section 21 is provided with an installation notch 26. The installation notch 26 reduces the installation error between the lead sheath 2 and the wire protection sleeve installation groove 11, making the installation of the lead sheath 2 more convenient.

[0026] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A motor lead structure, comprising a cylindrical motor housing (3), an end cover (1) and a lead sheath (2), wherein the lead sheath (2) is provided with a wire hole (20), and the motor lead passes through the wire hole (20) from the inside of the motor and extends to the outside of the motor, characterized in that: The outer circumference of the end cover (1) is concavely provided with a wire sheath installation groove (11), and the lead wire sheath (2) comprises an inner section (21), a left section (22), an outer section (23) and a right section (24). The inner section (21), the left section (22) and the right section (24) are respectively embedded in the wire sheath installation groove (11), and the outer side surface of the outer section (23) is an arc surface, which abuts against the inner surface of the motor housing (3).

2. The outlet wire structure of a motor according to claim 1, characterized in that: The end cover (1) is provided with avoidance grooves (12) on both sides of the groove opening of the wire protection sleeve installation groove (11).

3. The outlet wire structure of a motor according to claim 2, characterized in that: The bottom of the wire protection sleeve installation groove (11) is arc-shaped.

4. A motor lead-out structure according to claim 1, 2 or 3, characterized in that: The outer sides of the inner section (21), the left section (22) and the right section (24) of the lead wire sheath (2) are provided with grooves (25), and the edge portion of the end cover (1) in the mounting groove (11) is nested in the grooves (25).

5. The outlet wire structure of a motor according to claim 4, characterized in that: The inner section (21) is provided with a mounting notch (26).

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