CN117394604A - Plug connector, motor and compressor - Google Patents

Abstract

The invention discloses a plug connector, a motor and a compressor, wherein the plug connector comprises: the motor comprises a mounting part, a fixed wing and a plug-in part, wherein the mounting part is used for mounting a protection device of the motor; the two fixing wings are arranged on the mounting part and extend along the circumferential direction of the stator core towards a direction away from each other, and the fixing wings are suitable for being fixed on a coil positioned at the shaft end of the stator core; the inserting part is arranged on the mounting part and positioned between the two fixed wings, and is suitable for being inserted between the stator core and the coil; the mounting part is provided with a limiting part, and the limiting part is suitable for being movably matched with the protection device to fix the protection device at different height positions. The plug connector can conveniently install the protection device on the motor, reduces the damage rate of the protection device in the production and processing process, reduces the work load intensity of production personnel, saves manpower, and reduces the production cost.

Description

Plug connector, motor and compressor

Technical Field

The invention relates to the technical field of air conditioners, in particular to a plug connector, a motor and a compressor.

Background

In the prior art, the motor of the three-phase power rotary compressor is fixed on a coil of the motor through a binding wire so as to realize the purpose of installing the protection device on the motor, the process of installing the protection device in the mode is complex, more production line operators are needed in the production process, the production process is complex, the production line is inconvenient to automate, the loss of the protection device in the production process is large, the manufacturing cost of the motor is increased, and an improvement space exists.

Disclosure of Invention

The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the invention provides the plug connector which can conveniently install the protection device on the motor, reduces the damage rate of the protection device in the production and processing process, reduces the work load intensity of production personnel, saves manpower and reduces the production cost.

The invention also provides a motor with the plug connector.

The invention also provides a compressor with the motor.

According to an embodiment of the first aspect of the invention, the plug comprises: the installation part is used for installing a protection device of the motor; two fixing wings provided to the mounting portion and extending in a direction away from each other in a circumferential direction of the stator core, the fixing wings being adapted to be fixed on a coil located at an axial end of the stator core; the inserting part is arranged on the mounting part and positioned between the two fixing wings, and is suitable for being inserted between the stator core and the coil; the mounting part is provided with a limiting part, and the limiting part is suitable for being movably matched with the protection device to fix the protection device at different height positions.

According to the plug connector provided by the embodiment of the invention, the protection device can be conveniently and quickly arranged on the motor, so that the damage rate of the protection device in the production and processing process is reduced, the work load intensity of production personnel is reduced, the labor is saved, and the production cost is reduced.

In addition, the plug connector according to the embodiment of the invention can also have the following additional technical characteristics:

according to some embodiments of the invention, one side of the fixing wing has a mating surface adapted to fit the outer circumferential surface of the coil.

According to some embodiments of the invention, the mating surface and the outer circumferential surface of the coil form an arcuate surface, and a radial dimension of the mating surface is equal to a radial dimension of the outer circumferential surface of the coil.

According to some embodiments of the invention, the fixing wing is adapted to be fixed on the wire package by a binding wire, and a limiting structure is arranged on a side of the fixing wing facing away from the mating surface, for limiting the binding wire.

According to some embodiments of the present invention, a slot pitch of two adjacent stator slots of the stator core is L, and a span range of two of the fixed wings is 3L-7L; and/or one end of each of the two fixing wings, which is far away from each other, spans half of the stator slot.

According to some embodiments of the invention, one end of the plugging part is connected with the mounting part, and the other end is provided with a limiting step.

According to some embodiments of the invention, the dimension of the plug portion in the axial direction of the stator core is smaller than the dimension of the folded edge of the slot insulating paper beyond the axial end of the stator core.

According to some embodiments of the invention, the tooth tip of the stator tooth of the motor exceeds the other end of the insertion portion in a radial direction of the stator core.

According to some embodiments of the invention, the dimension of the plug portion in the circumferential direction of the stator core is smaller than the width of the stator teeth of the stator core.

According to some embodiments of the invention, the mounting portion defines a socket with a first jack and the first jack is disposed upward, the first jack is adapted to be in plug-in fit with a first plug board of the protection device, and the limiting portion is disposed on a wall of the first jack.

According to some embodiments of the invention, the mounting portion further has an oil leakage hole, and the oil leakage hole communicates with the first insertion hole.

According to some embodiments of the invention, the first receptacle forms a blind hole, and a bottom wall of the first receptacle has an oil guiding surface extending from top to bottom toward the oil leakage hole.

According to some embodiments of the invention, the first jack has a bottom opening such that the first jack forms a through hole, and the oil leakage hole is provided on a hole wall of the first jack and extends to the bottom opening.

According to some embodiments of the invention, the stop forms a first stop tab adapted to snap fit with any one of a plurality of first stop recesses of the protective device to secure the protective device in different height positions.

According to some embodiments of the invention, the first limiting protrusion has a first limiting surface and a first guiding surface, the first limiting surface and the first guiding surface are arranged opposite to each other in the plugging direction, and an included angle between the first limiting surface and the plugging direction is larger than an included angle between the first guiding surface and the plugging direction.

According to some embodiments of the invention, the mounting portion forms a second insert plate adapted for mating with a second insert hole of the protection device, and the limiting portion is provided on a side wall of the second insert plate.

According to some embodiments of the invention, the limit portion includes a plurality of limit portions, and at least a part of the plurality of limit portions is arranged along a height direction of the second board.

According to some embodiments of the invention, the limit part forms a second limit recess, any one of the plurality of second limit recesses being adapted to snap fit with a second limit protrusion of the protection device to fix the protection device in different height positions.

According to some embodiments of the invention, the stop forms a third stop tab, any one of the plurality of third stop tabs being adapted to be in a staggered engagement with a fourth stop tab of the protective device to secure the protective device in a different height position.

An electric motor according to an embodiment of the second aspect of the present invention includes a motor main body; the protection device is arranged at one axial end of the motor main body; according to the plug connector of the embodiment, the plug connector is respectively in plug fit with the motor main body and the protection device.

A compressor according to an embodiment of the third aspect of the present invention includes the motor according to the above-described embodiment.

Drawings

FIG. 1 is a schematic view of a plug connector according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a plug connector according to an embodiment of the present invention;

FIG. 3 is a schematic view of a plug connector according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of an electric machine according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an electric motor according to an embodiment of the present invention;

FIG. 6 is a partial cross-sectional view of an electric machine according to an embodiment of the present invention;

FIG. 7 is a schematic view of a plug connector according to an embodiment of the present invention;

FIG. 8 is a partial cross-sectional view of an electric machine according to an embodiment of the present invention;

fig. 9 is a partial cross-sectional view of an electric machine according to an embodiment of the present invention.

Reference numerals:

the motor comprises a motor 100, a motor body 1, a stator core 11, stator teeth 111, stator grooves 112, a coil 13, a protection device 2, a mounting mating piece 21, a plug connector 3, a mounting part 31, a connecting piece 32, a fixing wing 33, a limiting structure 331, a first jack 4a, a jack 41, an oil guiding surface 42, an oil leakage hole 43, a second jack 4b, a first plug board 5a, a second plug board 5b, a first limiting convex part 6a, a first limiting surface 61, a first guiding surface 62, a second limiting convex part 6b, a first limiting concave part 7a, a second limiting concave part 7b, a connecting plate 8, a fixing end 81, a movable end 82, a holding part 83, a stop piece 9, a plug connector 10, a limiting step 101 and a slot insulating paper 20.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The plug connector can be applied to a motor of a three-phase power supply rotary compressor, in the prior art, the motor of the three-phase power supply rotary compressor fixes the protection device on a coil of the motor through a binding wire, so that the purpose of installing the protection device on the motor is realized, the process of installing the protection device is complex, more production line operators are needed in the production process, the production process is complex, the automation of the production line is inconvenient, the loss of the protection device in the production process is large, and the manufacturing cost of the plug connector is increased.

Therefore, the embodiment of the invention designs the plug connector 3 which can indirectly fix the protection device 2 on the motor main body 1, so that the protection device 2 can be installed more conveniently, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, the labor is saved, and the production cost is reduced.

The plug connector 3 according to the embodiment of the present invention is described below with reference to fig. 1 to 9.

The plug connector 3 according to the embodiment of the present invention includes: the mounting portion 31, the fixing wing 33 and the insertion portion 10.

The mounting portion 31 on the plug-in unit 3 serves to mount the protection device 2 of the electric motor 100, in other words, the protection device 2 can be indirectly fixed to the electric motor 100 via the plug-in unit 3.

Therefore, when the protection device 2 is installed on the motor 100, the protection device 2 is installed on the plug connector 3 through the installation part 31 without complex wire binding process, the purpose of fixedly arranging the protection device 2 on the motor 100 can be achieved, the installation of the protection device 2 is more convenient, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, manpower is saved, and the production cost is reduced.

Wherein the two fixing wings 33 are provided at the mounting portion 31 and extend in a direction away from each other in the circumferential direction of the stator core 11, the fixing wings 33 are adapted to be fixed to the coil 13 at the axial end of the stator core 11, that is, the two fixing wings 33 can surround a portion of the coil 13 of the motor 100, the two fixing wings 33 can stably connect the mounting portion 31 and the motor 100 at both sides of the mounting portion 31, both sides of the mounting portion 31 are uniformly stressed, and the stability of the arrangement of the protection device 2 mounted on the mounting portion 31 is further ensured. In addition, the fixing wings 33 positioned at both sides of the mounting portion 31 can be uniformly stressed, thereby preventing the plug connector 3 from being skewed during the mounting process.

The plug-in part 10 is arranged on the mounting part 31 and is positioned between the two fixing wings 33, the plug-in part 10 is suitable for being plugged between the stator core 11 and the coil 13, the plug-in part 10 can be fixedly connected on the motor 100 through the plug-in part 11 and the coil 13, and the plug-in part 10 can pre-fix the plug-in part 3 on the side surface of the coil 13 before the motor 100 is assembled, so that the plug-in part 3 is ensured not to fall off and change in position in the mechanical transportation process before the motor 100 is not assembled, the processing time is further saved, and the reliability of the whole structure of the motor 100 is ensured.

The plug-in part 3 can thereby be arranged on the motor 100 by means of the fixing wings 33 and the stable fixing of the plug-in part 3, so that the protection device 2 mounted on the plug-in part 3 can also be arranged on the motor 100 in a stable fixing.

The mounting portion 31 is provided with a limiting portion, and the limiting portion is adapted to be movably matched with the protection device 2 to fix the protection device 2 at different height positions. That is, for different types of motors 100, the limiting part of the plug connector 3 can limit and fix the protection device 2 at different height positions, therefore, the plug connector 3 meets different height requirements of different types of motors 100 on the installation position of the protection device 2, for different types of motors 100, the protection device 2 can be fixedly arranged at a proper position on the motor 100 through the movable fit with the limiting part on the installation part 31 of the plug connector 3, the influence of the arrangement of the protection device 2 on the operation of the motor 100 is avoided, the universality of the plug connector 3 is better, and the design cost is saved.

According to the plug connector 3 provided by the embodiment of the invention, the plug connector 3 can conveniently install the protection device 2 on the motor 100, so that the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, the manpower is saved, and the production cost is reduced.

As shown in fig. 4, one side of the fixing wing 33 has an engagement surface adapted to be fitted to the outer peripheral surface of the wire pack 13. Thereby, the arrangement space of the coil 13 is prevented from being affected by the arrangement of the plug 3, and the function of the motor 100 is ensured to be able to operate stably.

Furthermore, the attachment of the fixing wing 33 to the outer circumferential surface of the coil 13 can also ensure the connection area between the fixing wing 33 and the coil 13, so that the connection area between the fixing wing 33 and the coil 13 is as large as possible, and further the connection between the plug-in unit 3 and the motor 100 is tighter, so that the setting of the plug-in unit 3 and the protection device 2 mounted on the plug-in unit 3 is more stable.

Referring to fig. 4, the mating surface and the outer circumferential surface of the coil 13 form an arc surface, and the radial dimension of the mating surface is equal to the radial dimension of the outer circumferential surface of the coil 13, thereby ensuring the close fitting of the mating surface of the fixing wing 33 and the outer circumferential surface of the coil 13, further ensuring the connection area between the fixing wing 33 and the coil 13, and ensuring the connection stability between the plug connector 3 and the motor 100.

As shown in fig. 1-4, the fixing wing 33 is suitable for being fixed on the coil 13 through a binding wire, and a limiting structure 331 is arranged on one side of the fixing wing 33, which is opposite to the matching surface, for limiting the binding wire, and the binding wire can be convenient for binding the plug-in unit 3 on the coil 13 through the limiting structure 331, so that the stability of connection between the plug-in unit 3 and the coil 13 due to play of the binding wire is avoided, and the plug-in unit 3 and the protection device 2 arranged on the plug-in unit 3 are more stably fixed on the motor 100.

Referring to fig. 4, the slot pitch of adjacent two stator slots 112 of the stator core 11 is L, the span range of the two fixing wings 33 is 3L to 7L, and preferably, the span range of the two fixing wings 33 is 5L, so that the two fixing wings 33 can have sufficient span for binding wires to fix while reducing structural redundancy, ensuring tight binding between the fixing wings 33 and the wire package 13, and ensuring the stability of the setting of the socket connector 3.

As shown in fig. 4, the ends of the two fixing wings 33, which are far away from each other, each span half of the stator slot 112.

Referring to fig. 6, one end of the plugging portion 10 is connected with the mounting portion 31, and the other end is provided with a limiting step 101, in some embodiments, the limiting step 101 can be in limiting fit with the edge of the insulation slot paper, so that the plugging portion 10 is prevented from being separated, the limiting step 101 can prevent the plugging portion 10 of the plug 3 from falling off after being inserted into the coil 13, the plug 3 is ensured not to fall off and change in position in the mechanical transportation process before the motor 100 is not assembled, and further the processing time is saved, and the reliability of the overall structure of the motor 100 is ensured.

And, the limit step 101 may be used to provide an insulation paper capable of wrapping copper wires inserted in the stator slots 112, ensuring electrical insulation strength between the stator winding 12 and the stator core 1111.

As shown in fig. 6, the dimension of the plug-in portion 10 in the axial direction of the stator core 11 is smaller than the dimension of the slot insulating paper 20 beyond the folded edge of the shaft end of the stator core 11, so as to ensure the insulating effect of the insulating slot paper, and avoid the arrangement of the plug-in portion 10 from affecting the normal operation of the motor 100.

Referring to fig. 4, in the radial direction of the stator core 11, the tooth tips of the stator teeth 111 of the motor 100 are beyond the other end of the socket 10, that is, the socket 10 is not beyond the range of the stator teeth 111, to avoid the arrangement of the socket 3 from affecting the normal operation of the motor 100.

As shown in fig. 4, the dimension of the plug portion 10 in the circumferential direction of the stator core 11 is smaller than the width of the stator teeth 111 of the stator core 11, that is, the plug portion 10 does not go beyond the range of the stator teeth 111 to avoid the arrangement of the plug 3 from affecting the normal operation of the motor 100.

[ scheme one ]

As shown in fig. 1-6, the mounting portion 31 defines a socket 41 with a first jack 4a, and the first jack 4a is upward, the first jack 4a is suitable for being in plug-in fit with the first plugboard 5a of the protection device 2, and through the plug-in fit of the first jack 4a and the first plugboard, the protection device 2 and the plug connector 3 can be fixedly connected together through the plug-in fit, so that the mounting process is convenient, damage to the protection device 2 caused by external force can be avoided, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, manpower is saved, and the production cost is reduced.

The limiting part is arranged on the hole wall of the first jack 4 a. Thus, when the first plugboard 5a is inserted into the first plughole 4a from top to bottom, the limiting part on the wall of the first plughole 4a can be movably matched with the first plugboard 5a so as to limit the protection device 2 at different heights.

Referring to fig. 1 to 6, the mounting portion 31 further has an oil leakage hole 43, and the oil leakage hole 43 is communicated with the first insertion hole 4a, so that when the plug connector 3 is subjected to paint dipping treatment, paint in the first insertion hole 4a can leak from the oil leakage hole 43, accumulation of paint in the first insertion hole 4a is avoided, blocking of the first insertion hole 4a caused by paint accumulation in the first insertion hole 4a is avoided, and reliability of plug connection between the first insertion plate 5a and the first insertion hole 4a is affected.

As shown in fig. 1 and 2, the first jack 4a forms a blind hole, the bottom wall of the first jack 4a has an oil guiding surface 42, and the oil guiding surface 42 extends from top to bottom towards the oil leakage hole 43, so that when the plug connector 3 is subjected to paint dipping treatment, paint at the bottom wall of the first jack 4a is not easy to stay on the bottom wall, and can completely leak from the oil leakage hole 43 through the guiding of the oil guiding surface 42, so that the accumulation of paint at the bottom wall of the first jack 4a is avoided, the first jack 4a blockage caused by the accumulation of paint in the first jack 4a is avoided, and the reliability of the plug connection between the first plug board 5a and the first jack 4a is affected.

Referring to fig. 3, the first insertion hole 4a has a bottom opening so that the first insertion hole 4a forms a through hole, whereby paint in the first insertion hole 4a can leak out from the bottom opening when the socket 3 is subjected to a paint dipping process, and the oil leakage hole 43 is provided in the wall of the first insertion hole 4a and extends to the bottom opening. Therefore, accumulation caused by retention of paint in the first jack 4a can be avoided, and blocking of the first jack 4a caused by accumulation of paint in the first jack 4a is avoided, so that reliability of plugging fit between the first plug board 5a and the first jack 4a is prevented.

As shown in fig. 1 to 6, the limiting portion forms a first limiting protrusion 6a, and the first limiting protrusion 6a is adapted to be engaged with any one of the plurality of first limiting recesses 7a of the protection device 2, so as to fix the protection device 2 at different height positions. Through the cooperation of first spacing convex part 6a and first spacing concave part 7a, can be together fixed protection device 2 and the spacing of plug connector 3 stability to make plug connector 3 and protection device 2's structure more succinct, further reduced manufacturing cost.

In some embodiments, a plurality of first limit recesses 7a are arranged in the height direction, the first limit protrusions 6a being adapted to cooperate with any one of the first limit recesses 7a to fix the protection device 2 in different height positions.

In the plugging process, the height of the position where the first limit protrusion 6a is matched with the first limit recess 7a, and the height of the position where the first limit protrusion 6a is matched with the last first limit recess 7a are within the adjustable height range of the protection device 2.

Therefore, for motors 100 of different models, the protection device 2 can be fixedly arranged at a proper position on the motor 100 through any one of the first limit concave parts 7a and the first limit convex parts 6a in a clamping fit manner, so that the influence of the arrangement of the protection device 2 on the operation of the motor 100 is avoided, the universality of the plug connector 3 is better, and the design cost is saved.

When the first jack 4a is in plug-in fit with the first plug board 5a, after the first limit protrusion 6a is in limit fit with the first limit recess 7a in the plug-in process, the protection device 22 continues to move downwards, the first guide surface 62 of the first limit protrusion 6a is in limit fit with the side surface below the first limit recess 7a to guide the movement of the first limit protrusion 6a, so that the first limit protrusion 6a moves in a direction away from the first plug board 5a, thereby the first plug board 5a is separated from the limit of the first limit protrusion 6a, and the relative movement between the protection device 2 and the plug connector 3 can continue until the limit fit between the first limit protrusion 6a and the next first limit recess 7a is continued, and the guide surface of the first limit protrusion 6a and the side surface below the next first limit recess 7a continue to enable the relative movement between the protection device 2 and the plug connector 3 until the protection device 2 reaches a proper height.

Further, the first limiting surface 61 can be matched with a side surface above any first limiting concave 7a, so that the first plugboard 5a and the first plugboard 4a cannot be separated, and the protection device 2 and the plug connector 3 are limited and fixed together.

The first limiting surface 61 and the first guiding surface 62 are arranged relatively in the plugging direction, specifically, the plugging direction is the extending direction of the plug hole, the plug hole extends vertically, the first limiting surface 61 is located at the lower side of the first limiting protrusion 6a, and the first guiding surface 62 is located at the upper side of the first limiting protrusion 6 a.

In some embodiments, the included angle between the first limiting surface 61 and the plugging direction is larger than the included angle between the first guiding surface 62 and the plugging direction, so that the guiding effect of the first guiding surface 62 is better, and the limiting effect of the first limiting surface 61 is better.

[ scheme II ]

Referring to fig. 7-9, the mounting portion 31 forms a second plugboard 5b, the second plugboard 5b is suitable for being in plug-in fit with the second plughole 4b of the protection device 2, and through the plug-in fit of the second plughole 4b and the second plugboard, the protection device 2 and the plug connector 3 can be fixedly connected together through the plug-in fit, the mounting process is convenient, damage to the protection device 2 caused by external force can be avoided, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, manpower is saved, and the production cost is reduced.

The limiting part is arranged on the side wall of the second plugboard 5 b. Thus, when the second plugboard 5b is inserted into the second plughole 4b from bottom to top, the limiting part on the side wall of the second plugboard 5b can be movably matched with the second plughole 4b so as to limit the protection device 2 at different heights.

As shown in fig. 7 to 9, the limiting portion includes a plurality of limiting portions, at least a portion of the plurality of limiting portions are arranged along the height direction of the second inserting plate 5b, and therefore, the protecting device 2 can be limited at different heights through the matching of the limiting portions at different height positions and the second inserting holes 4b, and therefore, for motors 100 of different types, the protecting device 2 can be fixedly arranged at a proper position on the motor 100 through the clamping matching of any one of the plurality of first limiting concave portions 7a and the first limiting convex portions 6a, the influence of the arrangement of the protecting device 2 on the operation of the motor 100 is avoided, the universality of the plug connector 3 is better, and the design cost is saved.

Referring to fig. 7, the limiting portion forms a second limiting recess 7b, and any one of the plurality of second limiting recesses 7b is adapted to be snap-fitted with the second limiting protrusion 6b of the protection device 2 to fix the protection device 2 at different height positions. Through the cooperation of the second spacing convex part 6b and the second spacing concave part 7b, the stable spacing of protection device 2 and plug connector 3 is fixed together to make the structure of plug connector 3 and protection device 2 more succinct, further reduced manufacturing cost.

In some embodiments, a plurality of second limit recesses 7b are arranged in the height direction, the second limit protrusions 6b being adapted to cooperate with any one of the second limit recesses 7b to fix the protection device 2 in different height positions.

In the plugging process, the height of the position where the second limit protrusion 6b is matched with the first second limit recess 7b, and the height of the position where the second limit protrusion 6b is matched with the last second limit recess 7b are within the adjustable height range of the protection device 2.

Therefore, for motors 100 of different models, the protection device 2 can be fixedly arranged at a proper position on the motor 100 through any one of the second limit concave parts 7b and the second limit convex parts 6b in a clamping fit manner, so that the influence of the arrangement of the protection device 2 on the operation of the motor 100 is avoided, the universality of the plug connector 3 is better, and the design cost is saved.

According to other embodiments of the invention, the stop forms a third stop tab, any one of the plurality of third stop tabs being adapted to be in a staggered engagement with a fourth stop tab of the protection device 2 to secure the protection device 2 in a different height position. Through the dislocation cooperation of third spacing convex part and fourth spacing convex part, can be together fixed protection device 2 and the spacing of plug connector 3 stability to make plug connector 3 and protection device 2's structure succinct, further reduced manufacturing cost.

In some embodiments, a plurality of third limit protrusions are arranged in the height direction, and the fourth limit protrusion is adapted to be in offset engagement with any one of the third limit protrusions to fix the protection device 2 at different height positions.

In the plugging process, the height of the dislocation matching position of the fourth limit convex part and the first third limit convex part and the height of the matching position of the fourth limit convex part and the last third limit convex part are in an adjustable height range of the protection device 2.

Therefore, for motors 100 of different models, the protection device 2 can be fixedly arranged at the proper position on the motor 100 through the dislocation fit of any one of the third limit convex parts and the fourth limit convex parts, so that the influence of the arrangement of the protection device 2 on the operation of the motor 100 is avoided, the universality of the plug connector 3 is better, and the design cost is saved.

The motor 100 according to the embodiment of the invention comprises the plug connector 3, the motor main body 1 and the protection device 2 in the embodiment, wherein the protection device 2 is arranged at one axial end of the motor main body 1, and the plug connector 3 is respectively in plug fit with the motor main body 1 and the protection device 2. In other words, the protection device 2 can be indirectly fixed to the motor 100 via the plug-in connector 3.

Therefore, when the protection device 2 is installed on the motor 100, the protection device 2 is installed on the plug connector 3 through the installation part 31 without complex wire binding process, the purpose of fixedly arranging the protection device 2 on the motor 100 can be achieved, the installation of the protection device 2 is more convenient, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production personnel is reduced, manpower is saved, and the production cost is reduced.

One specific embodiment of the motor 100 is described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the motor 100 includes: a motor body 1, a protection device 2 and a plug connector 3.

The protection device 2 is arranged at one axial end of the motor main body 1, the plug connector 3 is arranged on the motor main body 1 and comprises a mounting part 31 and a connecting piece 32 which are connected, the protection device 2 is matched with the mounting part 31, the connecting piece 32 is matched with the motor main body 1, the protection device 2 comprises a mounting matching piece 21, and the mounting matching piece 21 is matched with the mounting part 31 in a plug connection mode. Therefore, other fasteners are not required to be used for installation in the process of installing the protection device 2, the working procedure is saved, production staff only need to plug and match the installation matching piece 21 of the protection device 2 to the installation part 31 of the plug connector 3, the fixed connection of the protection device 2 and the plug connector 3 can be realized, other parts in the protection device 2 are not stressed in the process, namely, the damage to the protection device 2 caused by the action of external force can be avoided, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production staff is reduced, manpower is saved, and the production cost is reduced.

Further, the first jack 4a is arranged on the mounting portion 31, the mounting matching piece 21 is the first plugboard 5a, the protection device 2 and the plug connector 3 can be fixedly connected together through plug matching through the plug matching of the first jack 4a and the first plugboard 5a, the mounting process is convenient, damage to the protection device 2 caused by external force action can be avoided, the damage rate of the protection device 2 in the production and processing process is reduced, the work load intensity of production staff is reduced, manpower is saved, and the production cost is reduced.

The insertion opening 41 of the first insertion opening 4a is provided upward, and the mounting portion 31 has an oil leakage hole 43, and the oil leakage hole 43 communicates with the first insertion opening 4 a. Therefore, when the plug connector 3 is subjected to paint dipping treatment, paint can leak from the oil leakage hole 43, so that accumulation of the paint in the first jack 4a is avoided, and blocking of the first jack 4a caused by paint accumulation in the first jack 4a is avoided, and the reliability of plug connection and matching between the first plug board 5a and the first jack 4a is influenced.

The bottom wall of the first jack 4a is provided with the oil guide surface 42, and the oil guide surface 42 extends from top to bottom towards the oil leakage hole 43, so that paint at the bottom wall of the first jack 4a is not easy to stay on the bottom wall when the plug connector 3 is subjected to paint dipping treatment, and can completely leak from the oil leakage hole 43 through the guiding of the oil guide surface 42, so that the paint is prevented from accumulating at the bottom wall of the first jack 4a, the first jack 4a is prevented from being blocked due to the accumulation of the paint in the first jack 4a, and the reliability of the plug connection between the first plug board 5a and the first jack 4a is influenced.

The mounting portion 31 further includes: spacing portion, connecting plate 8 and backstop 9 are provided with spacing cooperation portion on the installation cooperation piece 21, and connecting plate 8 can be by setting up "U" shape mouth constitution on the lateral wall of installation department 31 one side, and the one end of connecting plate 8 is stiff end 81 and the other end is expansion end 82, and spacing portion sets up on expansion end 82 of connecting plate 8 to locate connecting plate 8 towards spacing cooperation portion one side, so that spacing portion and spacing cooperation of spacing cooperation portion, ensure spacing connection's reliability between spacing portion and the spacing cooperation portion.

Further, the stopper 9 is stopped at a side of the connection plate 8 facing away from the limiting portion, for limiting the travel of the movable end 82 of the connection plate 8.

The spacing portion forms first spacing convex part 6a, and spacing mating part forms first spacing concave part 7a, through the cooperation of first spacing convex part 6a and first spacing concave part 7a, can be in the same place the spacing of installation mating part 21 and installation department 31 stability to make the structure of installation mating part 21 and installation department 31 more succinct, further reduced manufacturing cost.

The first limit protrusion 6a has a first limit surface 61 and a first guide surface 62, when the mounting portion 31 is in plug-in fit with the mounting mating member 21, after the first limit protrusion 6a is in limit fit with the first limit recess 7a in the plug-in process, the protection device 2 continues to move in the plug-in direction, the first guide surface 62 of the first limit protrusion 6a is matched with one side surface of the plug-in direction of the first limit recess 7a to guide the movement of the limit portion, so that the limit portion moves in a direction away from the limit mating portion, thereby enabling the limit mating portion to be separated from the limit of the limit portion, the mounting portion 31 and the mounting mating member 21 can continue to move relatively until the first limit protrusion 6a is in limit fit with the next first limit recess 7a, and the first guide surface 62 of the first limit protrusion 6a is matched with one side surface of the plug-in direction of the next first limit recess 7a continues to enable the relative movement between the mounting portion 31 and the mounting mating member 21, and continues to move until the protection device 2 reaches a proper height.

Further, the first limiting surface 61 can be matched with one side surface of the separation direction of any first limiting concave part 7a, so that the limiting part and the limiting matching piece are limited and fixed together, the mounting part 31 and the mounting matching piece 21 cannot be separated, and the stability of connection between the mounting part 31 and the mounting matching piece is improved.

A holding part 83 is arranged on one side of the connecting plate 8, which is back to the limiting part, and a producer can drive the movable end 82 of the connecting plate 8 to move through the holding part 83 so as to enable the limiting part to be separated from the limiting matching part.

The connector 32 includes a plug portion 10 extending in the radial direction of the stator core 11, and the plug portion 10 is inserted into the coil 13. The plug-in connection 10 can fixedly connect the plug-in connector 3 to the coil 13 by inserting the coil 13. In addition, the plug-in part 10 can pre-fix the plug-in part 3 on the side surface of the coil 13 before the motor 100 is not installed, so that the plug-in part 3 is ensured not to fall off and change in position during the mechanical transportation process before the motor 100 is not installed, the processing time is further saved, and the reliability of the whole structure of the motor 100 is ensured.

The limiting step 101 is arranged on the plug-in part 10, the limiting step 101 at the front end of the plug-in part 10 can be used for setting insulation slot paper, and the setting of the limiting step 101 can prevent the plug-in part 10 of the plug-in component 3 from falling off after being inserted into the coil 13, so that the connection stability of the plug-in component 3 and the motor main body 1 is ensured.

The plug-in unit 3 further comprises fixing wings 33, wherein the fixing wings 33 extend along the circumferential direction of the stator core 11, namely, the fixing wings 33 can encircle a part of the coil 13, and the fixing wings 33 are attached to the outer side of the coil 13, so that the arrangement space of the coil 13 is prevented from being influenced by the arrangement of the plug-in unit 3, and the stable operation of the motor 100 is ensured.

Furthermore, the attachment of the fixing wing 33 to the coil 13 can also ensure the connection area between the fixing wing 33 and the coil 13, so that the connection area between the fixing wing 33 and the coil 13 is as large as possible, and the connection between the plug connector 3 and the motor main body 1 is tighter, and the setting of the plug connector 3 is more stable.

The fixed wings 33 are at least two, so that the plug connector 3 and the motor main body 1 are stably connected at two sides of the plug connector 3, the fixed wings 33 at two sides are ensured to be uniformly stressed, and the plug connector 3 is prevented from being inclined in the installation process.

The plugging portion 10 has one plugging portion 10 fixedly disposed below the mounting portion 31, and the second fixing portions 321 have two second fixing portions 321 disposed at two sides of the mounting portion 31.

Since the plug connector 3 according to the embodiment of the present invention has the above technical effects, the motor 100 according to the embodiment of the present invention also has the above technical effects, i.e., by adopting the plug connector 3, it is advantageous to improve the processing efficiency and reduce the production cost.

The compressor according to the embodiment of the present invention includes the motor 100 according to the above-described embodiment. In the compressor, by adopting the above-described motor 100, the production cost is reduced. Other constructions for compressors are well known to those skilled in the art and therefore will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (21)

1. A plug connector, comprising:

the installation part is used for installing a protection device of the motor;

two fixing wings provided to the mounting portion and extending in a direction away from each other in a circumferential direction of the stator core, the fixing wings being adapted to be fixed on a coil located at an axial end of the stator core;

the inserting part is arranged on the mounting part and positioned between the two fixing wings, and is suitable for being inserted between the stator core and the coil;

the mounting part is provided with a limiting part, and the limiting part is suitable for being movably matched with the protection device to fix the protection device at different height positions.

2. The connector of claim 1, wherein one side of the securing wing has a mating surface adapted to engage an outer peripheral surface of the coil.

3. The plug of claim 2, wherein the mating surface and the outer peripheral surface of the coil form an arcuate surface, the mating surface having a radial dimension equal to a radial dimension of the outer peripheral surface of the coil.

4. The connector according to claim 2, wherein the fixing wing is adapted to be fixed to the wire package by a binding wire, and a limiting structure is provided on a side of the fixing wing facing away from the mating surface for limiting the binding wire.

5. The plug-in connector according to claim 2, wherein a slot pitch of two adjacent stator slots of the stator core is L, and a span range of two of the fixing wings is 3L to 7L; and/or one end of each of the two fixing wings, which is far away from each other, spans half of the stator slot.

6. The plug connector according to claim 1, wherein one end of the plug connector portion is connected to the mounting portion and the other end is provided with a limiting step.

7. The connector according to claim 6, wherein a dimension of the connector portion in an axial direction of the stator core is smaller than a dimension of a folded edge of the slot insulating paper beyond an axial end of the stator core.

8. The plug connector according to claim 6, wherein a tooth tip of a stator tooth of the motor exceeds the other end of the plug connector portion in a radial direction of the stator core.

9. The plug connector according to claim 6, wherein a dimension of the plug connector in a circumferential direction of the stator core is smaller than a width of stator teeth of the stator core.

10. The connector of any one of claims 1-9, wherein the mounting portion defines a socket having a first receptacle and the first receptacle is disposed upwardly, the first receptacle being adapted for mating engagement with a first insert plate of the protective device, the spacing portion being disposed on a wall of the first receptacle.

11. The plug connector of claim 10, wherein the mounting portion further has an oil leakage hole, the oil leakage hole being in communication with the first receptacle.

12. The plug connector of claim 11, wherein the first receptacle defines a blind bore, a bottom wall of the first receptacle having an oil guiding surface extending from top to bottom toward the oil leakage bore.

13. The plug connector of claim 11, wherein the first receptacle has a bottom opening such that the first receptacle forms a through hole, and the oil leakage hole is provided in a wall of the first receptacle and extends to the bottom opening.

14. The connector of claim 10, wherein the stop portion forms a first stop tab adapted to snap fit with any one of a plurality of first stop recesses of the protective device to secure the protective device in different height positions.

15. The plug connector of claim 14, wherein the first limit protrusion has a first limit surface and a first guide surface, the first limit surface and the first guide surface being disposed opposite one another in the plug direction, an included angle between the first limit surface and the plug direction being greater than an included angle between the first guide surface and the plug direction.

16. Plug connector according to any one of claims 1-9, wherein the mounting portion forms a second plug board adapted for plug-in engagement with a second plug hole of the protection device, the limit portion being provided in a side wall of the second plug board.

17. The connector of claim 16, wherein the stopper portion includes a plurality of stopper portions, at least a portion of the plurality of stopper portions being arranged in a height direction of the second card.

18. The connector of claim 17, wherein the retainer defines a second retainer recess, any one of the plurality of second retainer recesses being adapted to snap-fit with the second retainer projection of the protective device to secure the protective device in different height positions.

19. The connector of claim 17, wherein the stop forms a third stop tab, any one of the plurality of third stop tabs being adapted to be offset mated with a fourth stop tab of the protective device to secure the protective device in a different height position.

20. An electric machine, comprising:

a motor main body;

the protection device is arranged at one axial end of the motor main body;

the plug connector according to any one of claims 1-19, being in plug-fit with the motor body, the protection device, respectively.

21. A compressor comprising the motor of claim 20.