CN207321019U - Thread guide devices and motor - Google Patents

Abstract

The utility model provides a lead wire device and a motor. The lead wire device connects the lead cable through the wire outlet of the motor. The lead wire device includes a wire outlet assembly and a wire winding assembly. The second end of the cable; the wire winding assembly is arranged inside the outlet assembly to allow the cable to be wound on the wire winding assembly to form a surrounding portion. The lead-out device can avoid excessive stretching or bending of the cable, realize multi-directional leads, and flexibly adjust the direction of the cable lead-out.

Description

Lead device and motor

technical field

The utility model relates to a lead wire device, in particular to a motor with the lead wire device.

Background technique

Electrical devices such as motors often require external wires to connect to power and other devices. In the prior art, it is common practice to provide a wire outlet on the casing of the motor, and wires and cables pass through the wire outlet directly. However, when the installation space is insufficient or the cable length is insufficient, it is difficult to meet the wiring requirements of the motor. For example, if the installation position of the motor equipment is not good, in order to connect the cable to the designated position, it is necessary to pull and bend the cable vigorously during the lead-in process, resulting in local excessive bending and deformation of the cable, and even causing the cable to loosen and fall off. Resulting in a decrease in motor tightness. At the same time, long-term extrusion and friction will cause damage to the insulating skin wrapped around the cable, resulting in a reduction in the service life of the cable, and may even cause safety accidents such as electric leakage.

Utility model content

The embodiment of the utility model provides a lead wire device, which connects the cable through the outlet of the motor. The purpose of the utility model is to avoid excessive stretching or bending of the cable, and flexibly adjust the direction of the cable lead to realize multi-directional lead wires, saving installation space.

In one embodiment, the lead wire device includes: a wire outlet component, which has a first end fitted to the wire outlet and a second end leading out the cable; and a wire winding component, arranged on the wire outlet inside the component to allow the cable to be wound on the winding component to form a loop. The lead-out device allows the cable to form a wrap-around structure. When the cable is stretched or bent to adjust the lead-out direction, the tensile stress on the cable will be greatly reduced, thereby protecting the cable. The lead-out device has a simple structure and is quick and easy to assemble.

In one embodiment, the outlet assembly further includes: a first rotating assembly capable of rotating around the central axis of the outlet; and a second rotating assembly rotatably connected to the first rotating assembly components. Through the rotation and mutual cooperation of the first rotating component and the second rotating component, the cable can be drawn out from any direction and any angle, which improves the freedom of the drawing direction and the convenience of use.

In one embodiment, it further includes: a positioning pin, through which the second rotating assembly is assembled on the first rotating assembly, wherein the second rotating assembly can rotate around the positioning pin. Tightening the positioning pin after adjusting the outlet angle of the second rotating assembly can keep the first rotating assembly and the second rotating assembly relatively fixed, avoiding repeated abrasion of the cables caused by loose connections.

In one embodiment, the second rotating component has a bending portion that guides bending of the cable. The bending part has a guiding function. Compared with the vertically upward outlet method, guiding the cable in a horizontal direction can enhance the protection level and dust-proof effect, and prevent dust from falling into the motor through the outlet end.

In one embodiment, the winding assembly includes: an elastic threaded member, the surface of which has threaded grooves for accommodating the cable, and the pitch of the threaded grooves of the elastic threaded member is variable. The cables are restricted in the grooves of the thread grooves to prevent the cables from moving, and the use of elastic materials can make the distance between the thread grooves stretchable in the length direction, which can provide buffer protection when the cables are pulled.

In one embodiment, the winding assembly further includes: a winding wheel, the outer peripheral surface of which is suitable for winding the cable; and a reset mechanism, which is suitable for driving the winding wheel to return to an initial state. Location. When the rotation angle of the reel is too large to cause excessive deviation from the initial position, the reset mechanism generates a restoring force to take up the wire, prevent the cable from loosening and falling off, and maintain the winding structure of the cable.

In one embodiment, the reset mechanism includes: a housing, including a through hole for allowing cables to pass through and a shaft, wherein the winding wheel is sleeved on the shaft; and, a coil spring, It is arranged between the winding wheel and the shaft, and the two ends of the coil spring are respectively fixed on the winding wheel and the shaft of the housing. The coil spring is used as the reset driving mechanism, the structure is simple, the cost is low, and the installation is easy.

In one embodiment, the wire outlet assembly further includes: a seal, disposed on the contact surface between the wire outlet assembly and the outlet opening and/or the contact surface between the first rotation assembly and the second rotation assembly . Setting seals at the joints of the components can improve the sealing performance of the motor and achieve a good waterproof and dustproof effect.

In one embodiment, the motor includes: a wire outlet opened on the motor body, a cable, and a lead wire device as discussed above, wherein the wire lead device is arranged at the wire outlet, and the cable is connected from the wire outlet The outlet is introduced into the first end and drawn out from the second end.

In one embodiment, two lead wire devices are included, which are respectively used to connect the signal wire and the power wire of the motor. The signal wires and power wires of the motor are connected differently, and multiple lead devices are used to lead the wires separately, which can improve the flexibility of installation, and at the same time facilitate the maintenance and disassembly of the motor.

Description of drawings

The above characteristics, technical features, advantages and implementation methods of the utility model will be further described in a clear and understandable manner by describing the preferred embodiments and in conjunction with the accompanying drawings, wherein:

Fig. 1 schematically shows a motor and lead wire device according to an embodiment of the present invention.

Fig. 2 schematically shows a lead device according to an embodiment of the present invention.

Fig. 3 schematically shows an exploded view of a lead device according to another embodiment of the present invention.

Fig. 4 schematically shows an exploded view of a lead device according to yet another embodiment of the present invention.

Fig. 5 schematically shows a partial cross-sectional view of a lead device according to an embodiment of the present invention.

Label description:

10: outlet

20: cable

22: Surrounding Department

100: lead device

200: Outlet components

300: Winding components

400: positioning pin

220: First Rotary Assembly

222: Ring base

224: stop pin

240: Second Rotary Assembly

242: bending part

260: Seals

302: elastic screw

320: reel

340: reset mechanism

342: shell

3422: Through hole

3424: shaft

344: coil spring

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, and the same symbols in each figure represent the same parts. For multiple identical components, sometimes one of them is marked with a symbol, while the other is omitted.

The figures discussed below and the various embodiments used to describe the principles of the disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged device. The various innovative teachings of the present application will be described with reference to exemplary, non-limiting embodiments.

The lead wire device 100 according to the present utility model mainly includes an outlet assembly 200 and a winding assembly 300 , one end of the outlet assembly 200 is assembled on the outlet 10 and cooperates with the outlet 10 , and the other end of the outlet assembly 200 is used to lead out the cable 20 . The wire winding assembly 300 is arranged inside the cavity of the wire outlet assembly 200, and the cable 20 is drawn out from the lead port 10 and enters the cavity of the wire outlet assembly 200 through the first end of the wire outlet assembly 200, and the cable 20 is formed on the wire winding assembly 300. The surrounding portion 22 is then led out through the second end of the outlet assembly 200 . In this way, when the cable 20 is stretched or bent to adjust the drawing direction, the structure of the surrounding portion 22 of the cable 20 greatly reduces the tensile stress on the cable 20 and avoids local excessive deformation of the cable 20 . The wire lead device 100 of the utility model has a simple structure, quick and convenient assembly, and can realize multi-directional lead wires and flexibly adjust the lead-out direction of the cable 20 . In addition, the lead wire device 100 can also save installation space.

Turning to FIG. 2 , this figure schematically illustrates an embodiment of a lead assembly 100 according to the present invention. In this embodiment, the wire outlet assembly 200 can be divided into two upper and lower rotating assemblies, that is, a first rotating assembly 220 and a second rotating assembly 240 . As shown in FIG. 2 , the bottom end of the first rotating component 220 located below is assembled at the outlet hole 10 of the motor, for example, directly plugged into the outlet hole 10 . As shown by the direction of the arrow at the bottom of FIG. 2 , the first rotating assembly 220 can rotate around the central axis of the outlet port 10 in the horizontal direction. In addition, the second rotating assembly 240 is rotatably connected to the first rotating assembly 220 . For example, the protruding portion at the lower end of the second rotating component 240 may fit into the groove portion at the upper end of the first rotating component 220 . As shown by the arrow on the right side of FIG. 2 , the groove portion at the upper end of the first rotating assembly 220 can allow the second rotating assembly 240 to rotate inside, so as to realize the rotation of the second rotating assembly 240 in a certain angle range in the vertical direction. Through the rotation and mutual cooperation of the first rotating assembly 220 and the second rotating assembly 240, the cable 20 can be drawn out from any direction and angle, which improves the freedom of the drawing direction and the convenience of use. Specifically, according to an embodiment of the present utility model, the lead wire device 100 further includes a positioning pin 400, and the second rotating assembly 240 is assembled on the first rotating assembly 220 through the positioning pin 400, so that the second rotating assembly 240 can be positioned around the Pin 400 rotates. After adjusting the outlet angle of the second rotating assembly 240 and tightening the positioning pin 400, the first rotating assembly 220 and the second rotating assembly 240 can be kept relatively fixed, preventing the connection of the two rotating assemblies from loosening, and avoiding repeated bending and wear of the cable 20 . In a preferred embodiment, the second rotating assembly 240 has a bending portion 242 that guides the bending of the cable 20. The bending portion 242 has a guiding function, and tends to guide the wire in a horizontal direction compared to the vertically upward wire outlet method. The cable 20 can enhance the protection level and dustproof effect, and prevent dust from falling into the inside of the motor through the outlet end.

Different embodiments of the present invention are now discussed in more detail with reference to FIGS. 3 and 4 .

In the embodiment shown in FIG. 3 , the wire winding assembly 300 is in the form of an elastic screw 302 , the surface of which has a thread groove for accommodating the cable 20 , so that the cable 20 is wound, and the cable 20 is limited by the elastic thread. In the groove on the surface of the component 302, the cable 20 can be prevented from moving and loosening. The elastic screw 302 is made of elastic material, which has good stretching and shrinking properties. Therefore, the distance between the thread grooves of the elastic threaded member 302 is variable, and can be stretched in the length direction, which can provide buffer protection when the cable 20 is pulled. The cable 20 forms a surrounding portion 22 in the chamber of the first rotating assembly 220 and then is exported by the second rotating assembly 240 , the outlet port is sealed with the cable 20 , and the outer layer of the exported cable 20 is wrapped with an insulating skin. In addition, in the embodiment shown in FIG. 3 , an annular base 222 and a stop pin 224 may also be provided at the lead wire opening 10 , and the bottom end of the first rotating component 220 has a boss, and the diameter of the boss is the same as The inner diameters of the annular base 222 are matched to allow the first rotating assembly 220 to rotate within the annular base 222 . The stop pin 224 can be provided on the motor housing or on the ring-shaped base 222 to fix the first rotating assembly 220 so that the first rotating assembly 220 is relatively fixed to the motor.

On the other hand, in the embodiment shown in FIG. 4 , the winding assembly 300 is in the form of a winding wheel 320 and a reset mechanism 340 . Wherein, the outer peripheral surface of the reel 320 is suitable for the cable 20 to surround to form the encircling portion 22, and the reset mechanism 340 is suitable for driving the reel 320 to reset to an initial position, so as to prevent the reel 320 from rotating too much and the cable will 20 is loose and falls off, and the driving reel 320 is reset to an initial position to maintain the winding structure of the cable 20 . Specifically, the reset mechanism 340 mainly includes a housing 342 and a coil spring 344 . The housing 342 is relatively fixed to the first rotating assembly 220 . Wherein, the housing 342 includes a through hole 3422 allowing the cable 20 to pass through and a shaft 3424. The housing 342 also has a cavity for accommodating the reel 320. The reel 320 is sleeved on the shaft 3424. The cable 20 The casing 342 enters and exits through the through hole 3422 , and the surrounding portion 22 is formed on the reel 320 . Specifically, the reel 320 has two sides protruding from the outer circumference to clamp the cable 20 and prevent the cable 20 from getting loose. In a preferred embodiment, the reel 320 also has a hollow chamber to accommodate the coil spring 344 . The coil spring 344 is arranged between the reel 320 and the shaft 3424, the inner end of the coil spring 344 is fixed on the shaft 3424 of the casing, and the outer end of the coil spring 344 is fixed on the inner wall of the hollow chamber of the reel 320 . When the rotation angle of the reel 320 is too large to cause excessive deviation from the initial position, the coil spring 344 generates a restoring force to take up the wire, and the expected function and effect of the utility model can be realized. Using the coil spring 344 as the reset driving mechanism has a simple structure, low cost, and is easy to install.

As shown in FIG. 5 , the wire outlet assembly 200 further includes: a seal 260 disposed on the contact surface between the wire outlet assembly 200 and the wire outlet 10 , or on the contact surface between the first rotating assembly 220 and the second rotating assembly 240 . The sealing member 260 may be, for example, a rubber sealing ring, and providing the sealing member 260 at the joint of the components can improve the sealing performance of the motor and achieve a good waterproof and dustproof effect.

In addition, Fig. 1 schematically shows an embodiment of the motor according to the present invention. In this embodiment, the motor includes a wire outlet 10 opened on the motor body, a cable 20 and a lead wire device 100 as in any one of the above-mentioned embodiments. Wherein, the lead wire device 100 is arranged at the wire outlet 10 , and the cable 20 is introduced into the first end of the wire outlet assembly 200 from the wire outlet 10 and drawn out from the second end of the wire outlet assembly 200 . In particular, in the embodiment shown in FIG. 1 , the motor includes two lead wire devices 100 , which are respectively used to connect signal wires and power wires of the motor. The different connection of the signal line and the power line of the motor, using multiple lead wire devices 100 to lead the wires separately, can improve the flexibility of installation, and also facilitate the maintenance and disassembly of the motor.

In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims. Furthermore, any reference sign in a claim shall not be construed as limiting the claim concerned. The word "comprising" does not exclude other claims or devices or steps not listed in the description; "first" and "second" in the description herein are only for the convenience of description to distinguish different objects, have no practical meaning, and do not mean There are substantial differences between these two objects, and they do not imply any particular order.

A series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present utility model, and they are not intended to limit the scope of protection of the present utility model. Embodiments or changes should be included within the protection scope of the present utility model.

Claims (10)

1. thread guide devices (100), lead-in cables (20) are connect for the line outlet (10) by motor, it is characterised in that

Including：

One outlet component (200), it has the first end for being assemblied in the line outlet (10) and exports the cable (20) Second end；And

One wire-winding unit (300), is arranged at outlet component (200) inside, to allow the cable (20) to be wrapped in institute State and formed on wire-winding unit (300) around portion (22).

2. thread guide devices (100) as claimed in claim 1, it is characterised in that the outlet component (200) further comprises： One the first rotary components (220), it can be around the center axis rotation of the line outlet (10)；And

One the second rotary components (240), is rotatably connected at first rotary components (220).

3. thread guide devices (100) as claimed in claim 2, it is characterised in that further comprise：Positioning pin (400), described Two rotary components (240) are assemblied on first rotary components (220) by the positioning pin (400), wherein, described second Rotary components (240) can be rotated around the positioning pin (400).

4. thread guide devices (100) as claimed in claim 2, it is characterised in that second rotary components (240) have guiding The bending part (242) of cable (20) bending.

5. thread guide devices (100) as claimed in claim 1, it is characterised in that the wire-winding unit (300) includes：

One elastic thread part (302), its surface have to accommodate the thread groove of the cable (20), the elastic thread part (302) spacing of thread groove is variable.

6. thread guide devices (100) as claimed in claim 1, it is characterised in that the wire-winding unit (300) further comprises： One reel (320), its external peripheral surface surround suitable for the cable (20)；And

One resetting-mechanism (340), suitable for driving the reel (320) to be reset to an initial position.

7. thread guide devices (100) as claimed in claim 6, it is characterised in that the resetting-mechanism (340) includes：

One housing (342), including allow cable (20) through hole (3422) that passes through and an axostylus axostyle (3424), wherein it is described around Line wheel (320) is sheathed on the axostylus axostyle (3424)；And

One wind spring (344), it is arranged between the reel (320) and the axostylus axostyle (3424), the wind spring (344) Both ends are individually fixed in the axostylus axostyle (3424) of the reel (320) and the housing.

8. thread guide devices (100) as claimed in claim 2, it is characterised in that the outlet component (200) further comprises： Seal (260), is arranged at the contact surface of the outlet component (200) and the line outlet (10) and/or first rotation Component (220) and the contact surface of second rotary components (240).

9. motor, it is characterised in that the motor includes：Be opened in line outlet (10) on motor body, cable (20) and Thread guide devices (100) as described in any one of claim 1-8, wherein the thread guide devices (100) be arranged at it is described go out Line mouth (10), the cable (20) introduces the first end from the line outlet (10), and is drawn from the second end.

10. motor as claimed in claim 9, it is characterised in that including two thread guide devices (100), be respectively used to connect Draw the signal wire and power cord of the motor.