Motor wire outlet nozzle and motor

Abstract

The utility model belongs to the technical field of motor equipment, and particularly relates to a motor wire outlet nozzle and a motor. The motor wire outlet nozzle comprises a mounting part and a connecting part, a transition part is arranged between the mounting part and the connecting part, threading holes are formed in the mounting part, the connecting part and the transition part and penetrate through the mounting part, the connecting part and the transition part, the mounting part and the connecting part are arranged in a circular truncated cone shape, and the outer diameter of the large-diameter end of the mounting part is equal to the outer diameter of the small-diameter end of the connecting part; two ends of the transition part are a small-diameter end and a large-diameter end, the small-diameter end of the transition part is connected with the large-diameter end of the mounting part, the large-diameter end of the transition part is connected with the small-diameter end of the connecting part, the outer diameter of the small-diameter end of the transition part is smaller than that of the large-diameter end of the mounting part, and the outer diameter of the large-diameter end of the transition part is equal to that of the small-diameter end of the connecting part. According to the utility model, the friction force between the outer wall and the motor shell is increased, the connection reliability is improved, and the insertion into the motor shell is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor equipment, and specifically relates to a motor outlet nozzle and a motor. Background Art

[0002] The motor housing needs to lead out the wires from the wire outlet hole. In order to prevent the housing from damaging the wires, a wire outlet nozzle made of silicone rubber is usually provided at the wire outlet hole to protect the wires.

[0003] Existing wire outlet nozzles, such as Chinese patent CN217307418U, disclose a convenient installation sleeve assembly for a motor, which includes: a silicone insulating sleeve, the silicone insulating sleeve has a front mounting sleeve and a rear connecting sleeve, the front mounting sleeve has an embedded iron piece, and the outer diameter is larger than the rear connecting sleeve; a rubber wire outlet nozzle, the outer wall of the rubber wire outlet nozzle is bonded to the inner wall of the rear connecting sleeve, and the bonding length is at least 5mm; TPV edging, the TPV edging covers the outer walls of the rubber wire outlet nozzle and the rear connecting sleeve, and the length is set to 10mm.

[0004] In the above patent, the outer diameters of the front mounting sleeve, the rear connecting sleeve and the rubber wire outlet nozzle decrease successively, and their fixation depends on the two anti-slip grooves of the front mounting sleeve and the friction of the outer wall of the front mounting sleeve, resulting in loose installation. The entire motor wire outlet nozzle may be easily pulled off due to the axial tension of the wire, thus losing its sealing performance. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a motor wire outlet nozzle, which increases the friction between the outer wall and the motor housing, improves the connection reliability, and facilitates insertion into the motor housing; the utility model also provides a motor with better waterproof and dustproof effects at the motor wire outlet nozzle.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The motor outlet nozzle described in the utility model comprises a mounting part and a connecting part, a transition part is arranged between the mounting part and the connecting part, and threading holes are arranged in the mounting part, the connecting part and the transition part, and the threading holes penetrate the mounting part, the connecting part and the transition part. The mounting part and the connecting part are both arranged in a truncated cone shape, and the outer diameter of the large diameter end of the mounting part is equal to the outer diameter of the small diameter end of the connecting part; the two ends of the transition part are a small diameter end and a large diameter end, the small diameter end of the transition part is connected to the large diameter end of the mounting part, the large diameter end of the transition part is connected to the small diameter end of the connecting part, the outer diameter of the small diameter end of the transition part is smaller than the outer diameter of the large diameter end of the mounting part, and the outer diameter of the large diameter end of the transition part is equal to the outer diameter of the small diameter end of the connecting part.

[0008] The transition part includes a cylindrical section and a truncated cone section. The cylindrical section is connected to the mounting part. The small diameter end of the truncated cone section is connected to the cylindrical section, and the large diameter end of the truncated cone section is connected to the small diameter end of the connecting part, so as to ensure that the motor outlet nozzle can be smoothly inserted into the motor housing.

[0009] The outer diameter of the cylindrical section is larger than the outer diameter of the small diameter end of the mounting portion, and the outer diameter of the cylindrical section is smaller than the outer diameter of the large diameter end of the mounting portion, thereby ensuring the clamping of the transition portion on the motor housing.

[0010] The length of the connection portion is greater than or equal to 2.5 times the length of the mounting portion, thereby increasing the friction between the connection portion and the motor housing and ensuring the stability of the connection of the motor outlet nozzle to the motor housing.

[0011] The wire threading hole comprises a wire outlet hole, a through hole and a lead hole, the wire outlet hole, the through hole and the lead hole are connected in sequence, the wire outlet hole is arranged inside the mounting part, and the lead hole is arranged inside the connecting part.

[0012] The two ends of the outlet hole are a small diameter end and a large diameter end, and the small diameter end of the outlet hole is connected to the through hole; the two ends of the lead hole are a small diameter end and a large diameter end, and the small diameter end of the lead hole is connected to the through hole.

[0013] The inner diameter of the small diameter end of the wire outlet hole is equal to the inner diameter of the through hole, the inner diameter of the small diameter end of the lead hole is equal to the inner diameter of the through hole, the inner diameter of the through hole is smaller than the inner diameter of the large diameter end of the wire outlet hole, and the inner diameter of the through hole is smaller than the inner diameter of the large diameter end of the lead hole, which facilitates the threading of the wire in the threading hole.

[0014] A chamfer is provided at the connection between the outlet hole and the through hole, and a chamfer is provided at the connection between the lead hole and the through hole, further ensuring smooth passage of the wire; a chamfer is provided at the end of the lead hole away from the through hole to facilitate the wire to pass through the lead hole.

[0015] The length of the through hole is greater than the length of the outlet hole, and the length of the through hole is greater than the length of the lead hole, so as to ensure the friction between the inner wall of the through hole and the wire, and ensure the stability of the motor outlet nozzle on the wire.

[0016] The motor described in the utility model comprises the above-mentioned motor outlet nozzle.

[0017] The utility model has the following beneficial effects: the connection part with a truncated cone shape increases the friction between the outer wall and the motor housing; the outer diameters of the mounting part, the connection part and the transition part are reasonably set, so that the transition part has enhanced the clamping strength with the motor housing and improved the connection reliability. The truncated cone shape of the mounting part facilitates the insertion of the motor outlet nozzle into the motor housing. The motor including the motor outlet nozzle has a good waterproof and dustproof effect at the motor outlet nozzle, and can meet the waterproof and dustproof grade requirements of IP65. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0020] In the figure: 1, mounting portion; 2, connecting portion; 3, transition portion; 4, wire outlet hole; 5, through hole; 6, lead hole; 301, cylindrical section; 302, truncated cone section. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0022] Example 1

[0023] like Figure 1-2 As shown, the motor outlet nozzle described in the utility model includes a mounting portion 1 and a connecting portion 2, a transition portion 3 is arranged between the mounting portion 1 and the connecting portion 2, and threading holes are arranged in the mounting portion 1, the connecting portion 2 and the transition portion 3, the threading holes penetrate the mounting portion 1, the connecting portion 2 and the transition portion 3, the mounting portion 1 and the connecting portion 2 are both arranged in a truncated cone shape, and the outer diameter of the large diameter end of the mounting portion 1 is equal to the outer diameter of the small diameter end of the connecting portion 2; the two ends of the transition portion 3 are a small diameter end and a large diameter end, the small diameter end of the transition portion 3 is connected to the large diameter end of the mounting portion 1, and the large diameter end of the transition portion 3 is connected to the small diameter end of the connecting portion 2, the outer diameter of the small diameter end of the transition portion 3 is smaller than the outer diameter of the large diameter end of the mounting portion 1, and the outer diameter of the large diameter end of the transition portion 3 is equal to the outer diameter of the small diameter end of the connecting portion 2.

[0024] The transition portion 3 includes a cylindrical section 301 and a truncated cone section 302. The cylindrical section 301 is connected to the mounting portion 1. The small diameter end of the truncated cone section 302 is connected to the cylindrical section 301, and the large diameter end of the truncated cone section 302 is connected to the small diameter end of the connecting portion 2, ensuring that the motor outlet nozzle is smoothly inserted into the motor housing.

[0025] The outer diameter of the cylindrical section 301 is larger than the outer diameter of the small diameter end of the mounting portion 1 , and smaller than the outer diameter of the large diameter end of the mounting portion 1 , so as to ensure the clamping of the transition portion 3 on the motor housing.

[0026] The length of the connecting portion 2 is greater than or equal to 2.5 times the length of the mounting portion 1, thereby increasing the friction between the connecting portion 2 and the motor housing and ensuring the stability of the connection of the motor outlet nozzle to the motor housing.

[0027] The wire threading holes include a wire outlet hole 4 , a through hole 5 and a lead-in hole 6 , which are connected in sequence. The wire outlet hole 4 is arranged inside the mounting portion 1 , and the lead-in hole 6 is arranged inside the connecting portion 2 .

[0028] The two ends of the wire outlet hole 4 are a small diameter end and a large diameter end, and the small diameter end of the wire outlet hole 4 is connected to the through hole 5; the two ends of the lead hole 6 are a small diameter end and a large diameter end, and the small diameter end of the lead hole 6 is connected to the through hole 5.

[0029] The inner diameter of the small diameter end of the wire outlet hole 4 is equal to the inner diameter of the through hole 5, the inner diameter of the small diameter end of the lead hole 6 is equal to the inner diameter of the through hole 5, the inner diameter of the through hole 5 is smaller than the inner diameter of the large diameter end of the wire outlet hole 4, and the inner diameter of the through hole 5 is smaller than the inner diameter of the large diameter end of the lead hole 6, which facilitates the threading of the wire in the threading hole.

[0030] A chamfer is provided at the connection between the outlet hole 4 and the through hole 5, and a chamfer is provided at the connection between the lead hole 6 and the through hole 5, to further ensure smooth passage of the wire; a chamfer is provided at the end of the lead hole 6 away from the through hole 5 to facilitate the wire to pass through the lead hole 6.

[0031] The length of the through hole 5 is greater than that of the wire outlet hole 4, and the length of the through hole 5 is greater than that of the lead-in hole 6, so as to ensure the friction between the inner wall of the through hole 5 and the wire, and ensure the stability of the motor wire outlet nozzle on the wire.

[0032] Example 2

[0033] The motor described in the utility model comprises the motor outlet nozzle of embodiment 1. The motor has good waterproof and dustproof effect at the motor outlet nozzle, and can meet the waterproof and dustproof grade requirement of IP65.

Claims

1. A motor outlet nozzle, comprising a mounting portion (1) and a connecting portion (2), characterized in that: A transition portion (3) is provided between the mounting portion (1) and the connecting portion (2), and threading holes are provided in the mounting portion (1), the connecting portion (2) and the transition portion (3), the threading holes passing through the mounting portion (1), the connecting portion (2) and the transition portion (3), the mounting portion (1) and the connecting portion (2) are both arranged in a truncated cone shape, the outer diameter of the large diameter end of the mounting portion (1) is equal to the outer diameter of the small diameter end of the connecting portion (2); the two ends of the transition portion (3) are a small diameter end and a large diameter end, the small diameter end of the transition portion (3) is connected to the large diameter end of the mounting portion (1), the large diameter end of the transition portion (3) is connected to the small diameter end of the connecting portion (2), the outer diameter of the small diameter end of the transition portion (3) is smaller than the outer diameter of the large diameter end of the mounting portion (1), and the outer diameter of the large diameter end of the transition portion (3) is equal to the outer diameter of the small diameter end of the connecting portion (2).

2. The motor outlet nozzle according to claim 1, characterized in that: The transition portion (3) comprises a cylindrical section (301) and a truncated cone section (302); the cylindrical section (301) is connected to the mounting portion (1); the small diameter end of the truncated cone section (302) is connected to the cylindrical section (301); and the large diameter end of the truncated cone section (302) is connected to the small diameter end of the connecting portion (2).

3. The motor outlet nozzle according to claim 2, characterized in that: The outer diameter of the cylindrical section (301) is greater than the outer diameter of the small diameter end of the mounting portion (1), and the outer diameter of the cylindrical section (301) is smaller than the outer diameter of the large diameter end of the mounting portion (1).

4. The motor outlet nozzle according to claim 1, characterized in that: The length of the connecting portion (2) is greater than or equal to 2.5 times the length of the mounting portion (1).

5. The motor outlet nozzle according to claim 1, characterized in that: The wire threading hole comprises a wire outlet hole (4), a through hole (5) and a wire lead hole (6); the wire outlet hole (4), the through hole (5) and the wire lead hole (6) are connected in sequence; the wire outlet hole (4) is arranged inside the mounting portion (1), and the wire lead hole (6) is arranged inside the connecting portion (2).

6. The motor outlet nozzle according to claim 5, characterized in that: The two ends of the wire outlet hole (4) are a small diameter end and a large diameter end, and the small diameter end of the wire outlet hole (4) is connected to the through hole (5); the two ends of the lead-in hole (6) are a small diameter end and a large diameter end, and the small diameter end of the lead-in hole (6) is connected to the through hole (5).

7. The motor outlet nozzle according to claim 6, characterized in that: The inner diameter of the small diameter end of the outlet hole (4) is equal to the inner diameter of the through hole (5), the inner diameter of the small diameter end of the lead hole (6) is equal to the inner diameter of the through hole (5), the inner diameter of the through hole (5) is smaller than the inner diameter of the large diameter end of the outlet hole (4), and the inner diameter of the through hole (5) is smaller than the inner diameter of the large diameter end of the lead hole (6).

8. The motor outlet nozzle according to claim 5, characterized in that: A chamfer is provided at the connection between the wire outlet hole (4) and the through hole (5), a chamfer is provided at the connection between the lead hole (6) and the through hole (5), and a chamfer is provided at an end of the lead hole (6) away from the through hole (5).

9. The motor outlet nozzle according to claim 5, characterized in that: The length of the through hole (5) is greater than the length of the wire outlet hole (4), and the length of the through hole (5) is greater than the length of the lead hole (6).

10. A motor, characterized in that: The invention comprises the motor outlet nozzle as described in any one of claims 1 to 9.

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