Outgoing line sheath, motor, outgoing line assembling method of power line of motor, and air conditioner

Abstract

The invention provides an outgoing line sheath, a motor and a power line outgoing line assembling method thereof, and an air conditioner, the outgoing line sheath comprises an outer sleeve body, the outer sleeve body is provided with a line outlet penetrating through two opposite end faces of the outer sleeve body, and the outgoing line sheath also comprises a first line clamping assembly and a second line clamping assembly which are arranged along the line outgoing direction perpendicular to the line outlet and are opposite to each other about the line outgoing direction; the first wire clamping assembly and the second wire clamping assembly can be driven to move close to each other so as to clamp a cable which is located between the first wire clamping assembly and the second wire clamping assembly and passes through the wire outlet. The device can be compatible with reliable clamping and fixing of various cables of different specifications, the phenomenon that the cables are loosened or crushed due to the fact that the threading holes of the outlet sheath are not matched with the specifications of the cables in the prior art is effectively overcome, multiple sets of molds do not need to be repeatedly opened, the mold opening cost is saved, the general use degree of materials is improved, and the production efficiency is improved. And the management work of material coding is simplified.

Description

Technical Field

[0001] The invention belongs to the technical field of motor design, and in particular relates to an outlet wire sheath, a motor and an outlet wire assembly method of a power cord thereof, and an air conditioner. Background Art

[0002] At present, most plastic-encapsulated motors use a wire sheath to lead out the power cord, and all use a relatively simple upper and lower sheath extrusion structure. For motors of different powers and different protection levels, due to the inconsistency of the required starting current and temperature resistance level, power cords with different wire diameters will be used; when the power cord is replaced with a thinner wire, there will be a gap between the power cord and the wire sheath, and the power cord cannot be pressed tightly, which is easy to be loosened due to force; on the contrary, using a thicker power cord may cause the power cord to be crushed. Therefore, in order to be compatible with power cords of different specifications, the wire sheath needs to be re-injected, which will incur additional mold opening costs.

[0003] A small number of plastic-encapsulated motors use an integrated injection molding method for the wiring harness and the wire sheath. Although this method is compatible with power cords of different wire diameters, since the injection molding is in the form of high-temperature injection molding, high-temperature resistant power cords are required, which will increase the price cost. This method also has high requirements for the positioning of the power cord during injection molding. If the length of the power cord does not match after injection molding, the subsequent process cannot be reworked, resulting in product scrapping and waste of resources. Summary of the invention

[0004] Therefore, the present invention provides an outlet wire sheath, a motor and a method for assembling an outlet wire of the motor and an air conditioner, which can solve the technical problems in the prior art that the assembled outlet wire sheath is not compatible with power wires of different diameters, and the wire diameter is too thin and there is a gap that makes it easy to loosen, and the wire diameter is too large and it is easy to crush the cable; the injection-molded outlet wire sheath cannot be reworked once it is manufactured, resulting in product scrapping and waste of resources.

[0005] In order to solve the above problems, the present invention provides a wire outlet sheath, including an outer shell, the outer shell having a wire outlet passing through its two opposite end faces, and also including a first wire clamping assembly and a second wire clamping assembly along a wire outlet direction perpendicular to the wire outlet and opposite to the wire outlet direction, the first wire clamping assembly and the second wire clamping assembly can be driven to move closer to each other to clamp the cable between the two and passing through the wire outlet.

[0006] In some embodiments, the first wire clamping assembly includes a first wire clamping head, the second wire clamping assembly includes a second wire clamping head, and the sides of the first wire clamping head and the second wire clamping head facing each other are arc surfaces.

[0007] In some embodiments, the arc surface of at least one of the first wire clamping head and the second wire clamping head has a plurality of wire pressing protruding teeth spaced apart along the lead-out direction of the cable.

[0008] In some embodiments, the first wire clamping head has a plurality of first limiting teeth spaced apart along the lead-out direction of the cable on one side facing the second wire clamping head, and the second wire clamping head has a plurality of first limiting grooves spaced apart along the lead-out direction of the cable on one side facing the first wire clamping head. When the first wire clamping head and the second wire clamping head are in a clamping state of the cable at the same time, each of the first limiting teeth and each of the first limiting grooves form a one-to-one corresponding embedding.

[0009] In some embodiments, the first wire clamping assembly and the second wire clamping assembly also include a thrust rod respectively, and a through hole connected to the wire outlet is formed on two oppositely arranged outer walls of the outer casing, and the thrust rod can apply a thrust to the first wire clamping head or the second wire clamping head along the depth direction of the through hole and be locked into one with the outer casing after the first wire clamping head and the second wire clamping head clamp the cable in place.

[0010] In some embodiments, the first wire clamping head has a first limiting rod on the end face on the side away from its arc surface, and the second wire clamping head has a second limiting rod on the end face on the side away from its arc surface, and a groove is formed on the inner end face of the thrust rod, and the thrust rod is mounted on the first limiting rod or the second limiting rod through the groove; and / or, when the first wire clamping head and the second wire clamping head are in a clamping state for the cable, the thrust rod has a portion that protrudes outside the opening of the through hole.

[0011] In some embodiments, an elastic member is further provided in the groove, and the elastic member is clamped between the thrust rod and the first limiting rod or the second limiting rod.

[0012] In some embodiments, the outer wall surface of the thrust rod and the through hole can be limited by a snap mechanism; and / or the thrust rod includes an upper rod shell and a lower rod shell that are buckled together.

[0013] In some embodiments, the snap mechanism includes an elastic snap on the outer wall surface of the thrust rod and a boss on the inner wall of the through hole.

[0014] In some embodiments, a limiting assembly slide groove embedded in the sheath slot of the motor is formed on the outer peripheral wall of the outer shell; and / or the outer shell includes an upper shell and a lower shell that are buckled together.

[0015] The present invention also provides a motor, comprising the above-mentioned outlet wire sheath.

[0016] The present invention also provides a method for assembling the power line outlet of the motor as described above, comprising the following steps:

[0017] The outlet wire sheath is embedded in the sheath assembly groove of the motor through the limiting assembly sliding groove of the outlet wire sheath;

[0018] Twist the power cord into a twist shape and pass it through the outlet of the outlet sheath;

[0019] Driving the first wire clamping assembly and the second wire clamping assembly to simultaneously move close to the power line until the power line is clamped;

[0020] The positions of the first wire clamping assembly and the second wire clamping assembly are locked.

[0021] In some embodiments, when the first clamping assembly and the second clamping assembly of the outlet sheath each have an elastic member, before driving the first clamping assembly and the second clamping assembly to simultaneously move close to the power line until the power line is clamped, the method further includes:

[0022] An elastic member with a thickness matching the specification of the power line is selected and placed in the groove of the thrust rod.

[0023] The present invention also provides an air conditioner, comprising the above-mentioned motor.

[0024] The present invention provides an outlet wire sheath, a motor and a method for assembling an outlet wire of a power line thereof, and an air conditioner, which have the following beneficial effects:

[0025] The first wire clamping assembly and the second wire clamping assembly can be driven to move closer to each other, so that the cables of different specifications (wire diameters) can be clamped by changing the distance between the two, so that the outlet sheath of the present invention can be compatible with a variety of cables of different specifications for reliable clamping and fixing, effectively overcoming the phenomenon of loosening or crushing of cables caused by the mismatch between the threading holes of the outlet sheath and the specifications of the cables in the prior art, without the need to repeatedly open multiple sets of new molds, saving mold opening costs, improving the universal use of materials, and simplifying the management of material coding; at the same time, there is no need to use injection molding to form the sheath and the cable into one, and there is no waste of time and resources caused by rework and scrapping of materials due to changes in cable specifications;

[0026] By arranging a plurality of wire-pressing convex teeth at intervals along the lead-out direction of the cable on the arc surface, when the first wire clamping head and the second wire clamping head both clamp the cable, each wire-pressing convex tooth can be embedded in the concave part of the cable, thereby further improving the anti-detachment performance of the outlet sheath. It is worth mentioning that the outlet sheath at this time is particularly suitable for the case where the cable is a plurality of cables twisted into a twist shape, and the wire-pressing convex teeth protrude from the concave part of the outer side of the cable, and have excellent anti-pull performance. The cable at this time can specifically be a three-phase power cable;

[0027] The first clamping head and the second clamping head are embedded and buckled with each other through the limiting teeth and limiting grooves respectively provided thereon, so as to improve the overall structural strength of the two when they are in a state of clamping the cable, and further improve the ability of the two to resist the cable being pulled on the outside;

[0028] By using elastic parts of different thicknesses, it is possible to adapt to different cable diameters and ensure the reliability of cable clamping. It is worth emphasizing that, since elastic parts of different thicknesses can be adapted, the locking positions of the first clamping assembly and the second clamping assembly can be relatively fixed, thereby simplifying the structural design of the outlet sheath;

[0029] A boss is arranged on the inner wall of the through hole, and an elastic buckle is arranged on the outer wall of the thrust rod, so that the first clamping assembly and the second clamping assembly can be locked in position when the thrust rod is driven to slide close to the cable, without the need to connect the positioning piece to lock the positions of the two clamping assemblies after the two clamping assemblies are clamped in place, and the structure is simple and convenient;

[0030] The power cord is twisted into a twist shape before the cable is threaded, and then the cable is passed through the outlet of the outlet sheath. The concave portion on the surface of the twisted cable can be utilized so that the wire pressing convex teeth can correspond to the convex wire pressing portion, thereby improving the tensile strength of the outlet sheath to prevent the power cord from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0032] Figure 1 is a schematic diagram of the three-dimensional structure of the outlet sheath according to an embodiment of the present invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of the structural decomposition of the outlet sheath;

[0034] Figure 3 yes Figure 2 A bottom view of the upper casing body;

[0035] Figure 4 yes Figure 2 A schematic diagram of the three-dimensional structure of the first thread clamping head;

[0036] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of the second thread clamping head;

[0037] Figure 6 yes Figure 2 A bottom view of the upper rod housing in FIG.

[0038] Figure 7 yes Figure 2 A schematic diagram of a state of a clamping space with a smaller aperture formed by the first clamping head and the second clamping head;

[0039] Figure 8 yes Figure 2 A schematic diagram of the state of the clamping space when the aperture formed by the first clamping head and the second clamping head is larger;

[0040] Fig. 9 This is a state where the thrust rods on both sides of the outlet sheath in the embodiment of the present invention do not clamp the cable and the positions of the two are not locked;

[0041] Fig.10 The figure is a state in which the thrust rods on both sides of the outlet sheath of the embodiment of the present invention clamp the cable and are locked in position. The elastic member in the figure is larger so that it is suitable for clamping cables with small wire diameters. The arrow in the figure shows the direction of the thrust;

[0042] Fig.11 This is the state when the thrust rods on both sides of the outlet sheath of the embodiment of the present invention clamp the cable and the position is locked. The elastic member in this figure is smaller so that it is suitable for clamping cables with large wire diameters;

[0043] Fig.12 yes Figure 1 Schematic diagram of the state where the lead-out sheath is assembled on the plastic-encapsulated motor.

[0044] The accompanying drawings are marked as follows:

[0045] 1. Outer jacket;

[0046] 101, upper housing; 1011, first clamping hole; 102, lower housing; 1021, first clamping column; 11, outlet; 12, through hole; 121, boss; 13, limit assembly slide;

[0047] 21, first thread clamping head; 210, thread pressing convex tooth; 211, first limiting tooth; 212, first limiting rod; 213, second limiting groove;

[0048] 31. second thread clamp; 311. first limiting groove; 312. second limiting rod; 313. second limiting tooth;

[0049] 4. thrust rod; 41. upper rod housing; 411. second clamping hole; 42. lower rod housing; 421. second clamping column;

[0050] 43. Elastic buckle;

[0051] 5. Elastic parts;

[0052] 100. Cables; 200. Plastic-encapsulated motors. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90° or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0056] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0057] See also Figure 1 and Fig.12 As shown, according to an embodiment of the present invention, there is provided a wire outlet sheath, comprising an outer shell 1, the outer shell 1 having a wire outlet 11 penetrating through its two opposite end faces, the two end faces being the inner end face and the outer end face when the wire outlet sheath is in use, the wire outlet sheath also comprising a first wire clamping assembly (not labeled in the figure) and a second wire clamping assembly (not labeled in the figure) which are arranged opposite to each other (i.e. arranged opposite to each other) along a wire outlet direction perpendicular to the wire outlet 11 (i.e. the direction from the inner end face to the outer end face of the wire outlet sheath) and with respect to the wire outlet direction, the first wire clamping assembly and the second wire clamping assembly being capable of being driven to move closer to each other so as to clamp a cable 100 passing through the wire outlet 11 therebetween, it being understood that after the first wire clamping assembly and the second wire clamping assembly clamp the cable 100 passing therebetween, the positions of the first wire clamping assembly and the second wire clamping assembly should be locked to ensure that the two are in a clamping state of the cable 100.

[0058] In this technical solution, the first wire clamping assembly and the second wire clamping assembly can be driven to move closer to each other, so that the cables 100 of different specifications (wire diameters) can be clamped by relying on the change in the distance between the two, so that the wire outlet sheath of the present invention can be compatible with the reliable clamping and fixation of cables of various specifications, effectively overcoming the phenomenon of loosening or crushing of cables caused by the mismatch between the wire threading holes of the wire outlet sheath and the specifications of the cables in the prior art. There is no need to repeatedly open multiple sets of new molds, thus saving mold opening costs, improving the universal use of materials, and simplifying the management of material coding. At the same time, there is no need to use injection molding to integrate the sheath and the cable, and there is no waste of time and resources caused by rework or scrapping of materials due to changes in cable specifications.

[0059] In a specific embodiment, the first wire clamping assembly includes a first wire clamping head 21, and the second wire clamping assembly includes a second wire clamping head 31. The sides of the first wire clamping head 21 and the second wire clamping head 31 opposite to each other are arc surfaces. It can be understood that the side surfaces on the opposite sides of the two wire clamping heads are both designed to be arc surfaces, so that a roughly circular threading space can be formed when the two are close to each other, and the threading space is also the clamping space.

[0060] In this technical solution, the side surfaces of the first wire clamping head 21 and the second wire clamping head 31 facing each other are designed to be arc surfaces, so that the first wire clamping head 21 and the second wire clamping head 31 can have a larger contact area when clamping the cable 100. This can improve the clamping reliability and further prevent the cable 100 from being pulled out on the one hand, and ensure a more balanced clamping force on the other hand to prevent stress concentration from damaging the cable 100.

[0061] In a preferred embodiment, the arc surface of at least one of the first wire clamping head 21 and the second wire clamping head 31 has a plurality of wire pressing teeth 210 arranged at intervals along the lead-out direction of the cable 100, and the side of the wire pressing teeth 210 in contact with the cable 100 should be a smooth surface to avoid sharp parts.

[0062] In this technical solution, by arranging a plurality of wire-pressing protruding teeth 210 spaced apart along the lead-out direction of the cable 100 on the arc surface, when the first wire clamping head 21 and the second wire clamping head 31 both clamp the cable 100, each wire-pressing protruding tooth 210 can be embedded in the concave part of the cable, thereby further improving the anti-detachment performance of the outlet sheath. It is worth mentioning that the outlet sheath at this time is particularly suitable for the case where the cable is a plurality of cables twisted into a twisted shape, and the wire-pressing protruding teeth 210 protrude from the concave part of the outer side of the cable, and have excellent anti-pull performance. The cable at this time can specifically be a three-phase power cable.

[0063] See also Figure 4 and Figure 5As shown, in some embodiments, the first wire clamping head 21 has a plurality of first limiting teeth 211 spaced apart along the lead-out direction of the cable 100 on one side facing the second wire clamping head 31, and a second limiting groove 213 is formed between two adjacent first limiting teeth 211; the second wire clamping head 31 has a plurality of first limiting grooves 311 spaced apart along the lead-out direction of the cable 100 on one side facing the first wire clamping head 21, and a second limiting tooth 313 is formed between two adjacent first limiting grooves 311; when the first wire clamping head 21 and the second wire clamping head 31 are in a clamping state for the cable 100 at the same time, each of the first limiting teeth 211 and each of the first limiting grooves 311 are embedded in a one-to-one correspondence. Figure 4 and Figure 5 As shown, the first limiting tooth 211 and the second limiting groove 213, the second limiting tooth 313 and the first limiting groove 311 are arranged up and down on the corresponding clamping head, that is, they are located outside the opposite sides of the cable 100 after threading.

[0064] In this technical solution, the first clamping head 21 and the second clamping head 31 form an embedded fit with each other through the limiting teeth and limiting grooves they respectively have, which can improve the overall structural strength of the two when they are in a clamping state of the cable 100, and further improve the ability of the two to resist the cable being pulled on the outside.

[0065] See Figure 2 As shown, in some embodiments, the first clamping assembly and the second clamping assembly each further include a thrust rod 4, and the two oppositely disposed outer side walls (eg Figure 1 A through hole 12 communicating with the outlet 11 is formed on the side walls on the left and right sides of the position shown, and the thrust rod 4 can apply thrust to the first clamping head 21 or the second clamping head 31 along the depth direction of the through hole 12 and be locked as a whole with the outer casing 1 after the first clamping head 21 and the second clamping head 31 clamp the cable 100 in place. In a preferred embodiment, when the first clamping head 21 and the second clamping head 31 are in a clamping state on the cable 100, the thrust rod 4 has a portion protruding outside the orifice of the through hole 12, so that the operator can manually apply force to it.

[0066] In a specific embodiment, the first thread clamping head 21 has a first limiting rod 212 on the end face on the side away from its arc surface, and the second thread clamping head 31 has a second limiting rod 312 on the end face on the side away from its arc surface. A groove (not marked in the figure) is formed on the inner end face of the thrust rod 4, and the thrust rod 4 is mounted on the first limiting rod 212 or the second limiting rod 312 through the groove.

[0067] In this technical solution, the first limiting rod 212 and the second limiting rod 312 arranged behind the first thread clamping head 21 and the second thread clamping head 31 are plugged into the grooves on the corresponding thrust rod 4, so that when external force is applied to the outer end face of the thrust rod 4, the first thread clamping head 21 and the second thread clamping head 31 can move smoothly towards each other, ensuring that the limiting teeth and limiting grooves of the two thread clamping heads are accurately corresponding and embedded.

[0068] In some embodiments, an elastic member 5 is further provided in the groove, and the elastic member 5 is clamped between the thrust rod 4 and the first limiting rod 212 or the second limiting rod 312. The elastic member 5 may be a coil spring or an elastic rubber block, so that the elastic members 5 of different thicknesses can be used to adapt to the wire diameters of different cables 100 and ensure the clamping reliability of the cables 100. It is worth emphasizing that, since the elastic members 5 of different thicknesses can be adapted, the locking positions of the first clamping assembly and the second clamping assembly can be relatively fixed, thereby simplifying the structural design of the outlet sheath.

[0069] In a specific embodiment, the outer wall surface of the thrust rod 4 and the through hole 12 can be limited by a spring-lock mechanism (not marked in the figure). As a specific embodiment, the spring-lock mechanism includes an elastic buckle 43 on the outer wall surface of the thrust rod 4 and a boss 121 on the inner wall of the through hole 12.

[0070] In this technical solution, a boss 121 is provided on the inner wall of the through hole 12, and an elastic buckle 43 is provided on the outer wall surface of the thrust rod 4, so that the position of the first wire clamping assembly and the second wire clamping assembly can be locked when the thrust rod 4 is driven to slide close to the cable 100, without the need to connect the positioning parts to lock the positions of the two wire clamping assemblies after they are clamped in place. The structure is simple and convenient.

[0071] It can be understood that the outward side of the boss 121 should be a guiding slope, and the inward side of the boss 121 is a blocking step, so that when the corresponding elastic buckle 43 is driven to move to the inner side of the blocking step, the elastic buckle 43 will be blocked by the aforementioned blocking step to achieve the position locking of the thrust rod 4. The aforementioned elastic buckle 43 can be specifically injection-molded integrally with the thrust rod 4, and the material can be nylon.

[0072] In some embodiments, a limiting assembly slide groove 13 is formed on the outer peripheral wall of the outer casing 1 and is embedded in the sheath clamping groove (not marked in the figure) of the motor to form a reliable positioning connection between the outlet sheath and the motor.

[0073] In a specific embodiment, the outer sleeve 1 includes an upper sleeve 101 and a lower sleeve 102 that are buckled together. Figure 2 and Figure 3 As shown, a corresponding first clamping hole 1011 is provided on the bottom side end surface of the upper sleeve 101, and a corresponding first clamping column 1021 is provided on the top side end surface of the lower sleeve 102. The first clamping column 1021 and the first clamping hole 1011 are interferingly fitted to realize the buckling of the upper sleeve 101 and the lower sleeve 102. In this technical solution, by designing the outer sleeve 1 as a split structure that buckles with each other, it is convenient to assemble the first clamping assembly and the second clamping assembly in the outer sleeve 1.

[0074] In a preferred embodiment, the sizes of the first clamping head 21 and the second clamping head 31 are larger than the size of the through hole 12 so that the first clamping head 21 and the second clamping head 31 will not escape from the through hole 12 and go beyond the range of the wire outlet 11 of the outer casing 1 .

[0075] The thrust rod 4 includes an upper rod shell 41 and a lower rod shell 42 that are buckled together. Figure 2 and Figure 6 As shown, in a specific embodiment, a plurality of second clamping holes 411 are set on the bottom end surface of the upper rod shell 41, and a plurality of second clamping columns 421 are set on the top end surface of the lower rod shell 42. The second clamping columns 421 and the second clamping holes 411 are interferingly fitted to realize the buckling connection between the upper rod shell 41 and the lower rod shell 42.

[0076] According to an embodiment of the present invention, a motor is further provided. As a specific example, the motor is a plastic-encapsulated motor 200, which includes the above-mentioned wire outlet sheath.

[0077] According to an embodiment of the present invention, there is also provided a method for assembling the power line outlet of the motor as described above, comprising the following steps:

[0078] The outlet sheath is embedded in the sheath assembly groove of the motor through the limiting assembly sliding groove 13 of the outlet sheath;

[0079] The power cord is twisted into a twist shape and then passed through the outlet port 11 of the outlet sheath;

[0080] Driving the first wire clamping assembly and the second wire clamping assembly to simultaneously move close to the power line until the power line is clamped;

[0081] Lock the positions of the first wire clamping assembly and the second wire clamping assembly. It should be noted that the aforementioned locking may be an independent locking action, for example, the corresponding locking screws are used to form a fixed connection between the corresponding components of the corresponding first wire clamping assembly and the second wire clamping assembly and the outer sleeve body 1. Of course, the aforementioned locking may not be an independent locking action. For example, in the aforementioned embodiment of the present invention, the elastic buckle 43 on the outer wall surface of the thrust rod 4 and the boss 121 on the inner wall of the through hole 12 are used to realize synchronous automatic limit locking in the process of the thrust rod 4 driving the corresponding first wire clamping head 21 and the second wire clamping head 31 to move closer.

[0082] In this technical solution, the power cord is twisted into a twist shape before the cable 100 is threaded, and then the cable 100 is passed through the outlet port 11 of the outlet sheath, so that the concave portion on the surface of the twisted cable can be utilized, so that the wire pressing convex teeth 210 can correspond to the protruding wire pressing portion, thereby improving the tensile strength of the outlet sheath to prevent the power cord from falling out.

[0083] In some embodiments, when the first clamping assembly and the second clamping assembly of the outlet sheath each have an elastic member 5, before driving the first clamping assembly and the second clamping assembly to simultaneously move close to the power line until the power line is clamped, the method further includes:

[0084] An elastic member 5 of a thickness matching the specification of the power line is selected and placed in the groove of the thrust rod 4, that is, an elastic member 5 of a suitable thickness is selected according to the outer diameter of the power line passing through, so as to ensure reliable clamping of power lines with different wire diameters.

[0085] According to an embodiment of the present invention, there is also provided an air conditioner, comprising the above-mentioned motor.

[0086] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A cable outlet sheath, characterized in that: The invention comprises an outer casing (1), the outer casing (1) having a wire outlet (11) penetrating two opposite end surfaces thereof, and further comprising a first wire clamping assembly and a second wire clamping assembly arranged along a wire outlet direction perpendicular to the wire outlet (11) and opposite to the wire outlet direction, the first wire clamping assembly and the second wire clamping assembly being capable of being driven to move closer to each other so as to clamp a cable (100) passing through the wire outlet (11) and located between the first wire clamping assembly and the second wire clamping assembly.

2. The outlet sheath according to claim 1, characterized in that: The first wire clamping assembly comprises a first wire clamping head (21), the second wire clamping assembly comprises a second wire clamping head (31), and the sides of the first wire clamping head (21) and the second wire clamping head (31) facing each other are arc surfaces.

3. The outlet sheath according to claim 2, characterized in that: The arc surface of at least one of the first wire clamping head (21) and the second wire clamping head (31) has a plurality of wire pressing protruding teeth (210) arranged at intervals along the lead-out direction of the cable (100).

4. The outlet sheath according to claim 2, characterized in that: The first wire clamping head (21) has a plurality of first limiting teeth (211) arranged at intervals along the lead-out direction of the cable (100) on one side facing the second wire clamping head (31), and the second wire clamping head (31) has a plurality of first limiting grooves (311) arranged at intervals along the lead-out direction of the cable (100) on one side facing the first wire clamping head (21). When the first wire clamping head (21) and the second wire clamping head (31) are in a clamping state for the cable (100) at the same time, each of the first limiting teeth (211) and each of the first limiting grooves (311) form a one-to-one corresponding embedding.

5. The outlet sheath according to claim 2, characterized in that: The first wire clamping assembly and the second wire clamping assembly also include a thrust rod (4) respectively. A through hole (12) connected to the wire outlet (11) is formed on two oppositely arranged outer side walls of the outer casing (1). The thrust rod (4) can apply a thrust to the first wire clamping head (21) or the second wire clamping head (31) along the depth direction of the through hole (12) and be locked together with the outer casing (1) after the first wire clamping head (21) and the second wire clamping head (31) clamp the cable (100) in place.

6. The outlet sheath according to claim 5, characterized in that: The first clamping head (21) has a first limiting rod (212) on the end face of the side away from the arc surface, and the second clamping head (31) has a second limiting rod (312) on the end face of the side away from the arc surface. A groove is formed on the inner end face of the thrust rod (4), and the thrust rod (4) is mounted on the first limiting rod (212) or the second limiting rod (312) through the groove; and / or, when the first clamping head (21) and the second clamping head (31) are in a clamping state for the cable (100), the thrust rod (4) has a portion protruding outside the opening of the through hole (12).

7. The outlet sheath according to claim 6, characterized in that: An elastic member (5) is also provided in the groove, and the elastic member (5) is clamped between the thrust rod (4) and the first limiting rod (212) or the second limiting rod (312).

8. The outlet sheath according to any one of claims 5 to 7, characterized in that: The outer wall surface of the thrust rod (4) and the through hole (12) can be limited by a snap mechanism; and / or the thrust rod (4) comprises an upper rod shell (41) and a lower rod shell (42) which are snapped together.

9. The outlet sheath according to claim 8, characterized in that: The snap-fastening mechanism comprises an elastic snap fastener (43) located on the outer wall surface of the thrust rod (4) and a boss (121) located on the inner wall of the through hole (12).

10. The outlet sheath according to claim 1, characterized in that: A limiting assembly sliding groove (13) which is embedded in the sleeve slot of the motor is formed on the outer peripheral wall of the outer sleeve (1); and / or the outer sleeve (1) comprises an upper sleeve (101) and a lower sleeve (102) which are buckled together.

11. A motor, characterized in that: The invention comprises the outlet sheath according to any one of claims 2 to 10.

12. A method for assembling the power line outlet of a motor as claimed in claim 11, characterized in that: The steps include: The outlet wire sheath is embedded in the sheath assembly groove of the motor through the limiting assembly sliding groove (13) of the outlet wire sheath; The power cord is twisted into a twisted shape and then passed through the outlet port (11) of the outlet sheath; Driving the first wire clamping assembly and the second wire clamping assembly to move close to the power line at the same time until the power line is clamped; The positions of the first wire clamping assembly and the second wire clamping assembly are locked.

13. The method for assembling a power line outlet according to claim 12, characterized in that: When the first clamping assembly and the second clamping assembly of the outlet sheath each have an elastic member (5), before driving the first clamping assembly and the second clamping assembly to simultaneously move close to the power line until the power line is clamped, the method further includes: An elastic member (5) having a thickness matching the specification of the power line is placed in the groove of the thrust rod (4).

14. An air conditioner, characterized in that: Includes the motor as claimed in claim 11.

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