Fan motor lead structure

Abstract

The utility model discloses a fan motor lead structure, which comprises a motor body, one side of the motor body is provided with a wire passing hole for a lead to pass through, and the fan motor lead structure is characterized in that a wire clamp is detachably inserted in the wire passing hole, and the outer side of the motor body is in threaded connection with a pressing sleeve capable of abutting against the wire clamp; wherein the wire clamp comprises a wire protecting lantern ring and a plurality of clamping pieces, the plurality of clamping pieces are distributed on one side of the wire protecting lantern ring at intervals along the circumference, the clamping pieces can perform elastic deformation movement relative to the wire protecting lantern ring, a clamping area is formed among the plurality of clamping pieces, and inclined grooves are formed in the sides, deviating from each other, of the plurality of clamping pieces in an inwards concave mode. The wire passing hole is provided with a plurality of protruding parts at intervals along the circumference, the protruding parts and the inclined grooves are in one-to-one correspondence, embedded and matched, and the protruding parts can abut against the inclined grooves so that the clamping pieces can deform to be clamped on the lead.

Description

Technical Field

[0001] This utility model specifically relates to a fan motor lead wire structure. Background Technology

[0002] The fan motor, as the power source that drives the fan blades, is a crucial component during use. Existing motors are generally protected and encapsulated by a casing. However, in existing motors, the wires pass directly through the outlet on the motor casing, and there is no fixing mechanism at the outlet to secure the wires. Under external force, the wires can easily be pulled out, causing them to detach from the motor and resulting in damage.

[0003] Therefore, a fan motor lead structure is needed to improve the above-mentioned problems. Utility Model Content

[0004] In view of the defects of the existing technology, the technical problem to be solved by this utility model is to provide a fan motor lead wire structure.

[0005] A fan motor lead wire structure includes a motor body with a through hole on one side for the lead wire to pass through. A wire clamp is detachably inserted into the through hole. A pressure sleeve that can press against the wire clamp is threaded to the outside of the motor body. The wire clamp includes a wire guard ring and several clamping pieces. The clamping pieces are distributed circumferentially on one side of the wire guard ring and can elastically deform relative to the wire guard ring. A clamping area is formed between the clamping pieces. Each clamping piece has a recessed inclined groove on the opposite side. The through hole has several protrusions distributed circumferentially. The protrusions and the inclined grooves are fitted together in a one-to-one correspondence, and the protrusions can press against the inclined grooves so that the clamping pieces deform and clamp the lead wire.

[0006] In one embodiment, a threaded hole is provided on one side of the pressure sleeve, and a groove is recessed in the threaded hole on one side of the wire guard ring. A grommet screw is inserted into the threaded hole, and one end of the grommet screw extends into the groove.

[0007] In one embodiment, the length of the groove is greater than the diameter of the screw hole.

[0008] In one embodiment, the contact surface of the clip that abuts against the lead wire is an arc surface.

[0009] In one embodiment, the inner diameter of the wire guard ferrule is equal to the diameter of the lead wire.

[0010] In one embodiment, the wire sheath is made of insulating plastic or rubber.

[0011] In one embodiment, the outer surface of the pressure sleeve is provided with anti-slip texture.

[0012] In summary, the advantages of this utility model over the prior art are:

[0013] The lead wire is inserted into the wire hole and positioned between several clamping plates of the wire clamp. Then, the wire clamp is inserted into the wire hole through several clamping plates. At this time, several protrusions located on the inner side of the wire hole respectively abut and fit with the inclined grooves of several clamping plates. As the wire clamp is continuously pressed into the wire hole, the clamping plates are subjected to pressure from the protrusions and undergo relative elastic deformation to clamp the lead wire. Then, the outer side of the motor body is connected to the pressure sleeve thread and pressed against the wire clamp, so that the clamping plates of the wire clamp are kept in a connected state of clamping the lead wire under pressure, thereby achieving the fixation of the lead wire and effectively avoiding the disadvantage of the lead wire being pulled out and damaged under the action of external force.

[0014] Furthermore, the pressure sleeve is in a connection state where it is pressed against the wire clamp as a cover, which effectively reduces gap leakage and improves the sealing between the lead wire and the wire hole. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of a fan motor lead wire structure in one embodiment of the present invention;

[0016] Figure 2 As one embodiment of this utility model Figure 1 Enlarged view of point A;

[0017] Figure 3 This is a perspective view of a fan motor lead wire structure in one embodiment of the present invention;

[0018] Figure 4 This is a top view of the wire clamp in one embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 4 The present invention preferably provides a fan motor lead wire structure, including a motor body 1. A wire through hole 2 is provided on one side of the motor body 1 for the lead wire to pass through. A wire clamp 3 is detachably inserted into the wire through hole 2. A pressure sleeve 4 that can press against the wire clamp 3 is threaded to the outside of the motor body 1. The wire clamp 3 includes a wire guard ring 31 and a plurality of clamping pieces 32. The plurality of clamping pieces 32 are distributed circumferentially on one side of the wire guard ring 31, and the clamping pieces 32 can elastically deform and move relative to the wire guard ring 31. A clamping area is formed between the plurality of clamping pieces 32. An inclined groove 33 is recessed on the opposite side of the plurality of clamping pieces 32. A plurality of protrusions 5 are provided circumferentially at intervals. The plurality of protrusions 5 and the plurality of inclined grooves 33 are fitted and engaged in a one-to-one correspondence. The protrusions 5 can press against the inclined grooves 33 so that the clamping pieces 32 deform and clamp the lead wire.

[0021] Specifically, the lead wire passes through the wire hole and is positioned between several clamping plates of the wire clamp. Then, the clamping plates of the wire clamp are inserted into the wire passage hole. At this time, several protrusions located inside the wire passage hole abut and engage with the inclined grooves of several clamping plates one by one. Due to the guide slope of the inclined groove, as the wire clamp is continuously pressed towards the wire passage hole, the clamping plates are subjected to relative elastic deformation under the pressure of the protrusions to clamp the lead wire. Then, the pressure sleeve is threaded to the outside of the motor body and presses against the wire clamp, so that the clamping plates of the wire clamp are kept in a connected state of clamping the lead wire, thereby fixing the lead wire and effectively avoiding the disadvantage of the lead wire being pulled out and damaged under external force. In addition, the pressure sleeve is in a covered state of pressing against the wire clamp, effectively reducing gap leakage and improving the sealing between the lead wire and the wire passage hole.

[0022] Furthermore, a threaded hole 41 is provided on one side of the pressure sleeve 4, and a groove 42 is recessed in the threaded hole 41 on one side of the wire guard ring 31. A grommet screw 43 is threaded into the threaded hole 41, and one end of the grommet screw 43 extends into the groove 42. Specifically, because the inclined groove of the clamp plate in the wire clamp and the protrusion in the wire passage hole are fitted and abutted one-to-one, the wire clamp cannot rotate or move relative to the wire passage hole. Then, the grommet screw extends into the groove of the wire guard ring in the wire clamp through the threaded hole of the threaded sleeve to achieve anti-rotation limit of the pressure sleeve relative to the motor body, effectively preventing the pressure sleeve from loosening, so that the pressure sleeve keeps the connection state of the wire clamp tightly pressed.

[0023] Furthermore, the length of the groove 42 is greater than the diameter of the screw hole 41. This effectively avoids the drawback of misalignment between the screw hole and the groove due to machining errors, preventing the screw from being inserted into the groove.

[0024] Furthermore, the contact surface of the clamp 32 that abuts against the lead wire is an arc surface. This effectively increases the contact area between the clamp and the lead wire, enhancing the clamping strength.

[0025] Furthermore, the inner diameter of the wire sheath 31 is equal to the diameter of the lead wire. This effectively reduces the gap between the wire sheath and the lead wire.

[0026] Furthermore, the protective collar 31 is made of insulating plastic or rubber.

[0027] Furthermore, the outer surface of the pressure sleeve 4 is provided with anti-slip texture, which facilitates the user's disassembly and unscrewing of the pressure sleeve.

[0028] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fan motor lead structure comprising a motor body (1) having a through hole (2) for a lead wire to pass through on one side, characterized in that: The wire clamp (3) is detachably inserted into the wire passing hole (2), the motor body (1) is externally threadedly connected with a pressing sleeve (4) capable of pressing the wire clamp (3); wherein the wire clamp (3) comprises a wire protection sleeve ring (31) and a plurality of clamping pieces (32), the clamping pieces (32) are circumferentially and interval distributed on one side of the wire protection sleeve ring (31), the clamping pieces (32) are capable of elastically deforming and moving relative to the wire protection sleeve ring (31), the clamping pieces (32) form a clamping area therebetween, the clamping pieces (32) are respectively and inwardly recessed with inclined grooves (33) on their opposite sides, the wire passing hole (2) is circumferentially and interval provided with a plurality of convex portions (5), the convex portions (5) and the inclined grooves (33) are one-to-one correspondingly embedded and matched, and the convex portions (5) are capable of pressing the inclined grooves (33) so as to make the clamping pieces (32) deformed and clamped on the lead wire.

2. A fan motor lead structure as claimed in claim 1, wherein: The pressing sleeve (4) is penetrated with a screw hole (41) on one side, the wire protection sleeve ring (31) is inwardly recessed with a recess (42) on one side corresponding to the screw hole (41), the screw hole (41) is threadedly and complementarily inserted with a machine screw (43), and one end of the machine screw (43) extends into the recess (42).

3. A fan motor lead structure as set forth in claim 2, characterized in that: The length of the recess (42) is greater than the diameter of the screw hole (41).

4. A fan motor lead structure as set forth in claim 1, characterized in that: The abutting surface of the clamping piece (32) for abutting with the lead wire is an arc surface.

5. A fan motor lead structure as set forth in claim 1, characterized in that: The inner diameter of the wire protection sleeve ring (31) is equal to the diameter of the lead wire.

6. A fan motor lead structure as set forth in claim 1, characterized by: The wire protection sleeve ring (31) is made of insulating plastic or rubber.

7. A fan motor lead structure as set forth in claim 1, characterized by: The pressing sleeve (4) is externally provided with anti-skid lines.

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