CN220553868U - Coil for motor and motor convenient to connect - Google Patents

Abstract

The utility model discloses a coil for a motor and a motor which are convenient to connect. The utility model provides a coil for motor convenient to connect, including main winding, auxiliary winding, electric capacity, the main winding includes first end and second end, and the auxiliary winding includes third end and fourth end, and electric capacity includes fifth end and sixth end, and first end has first discernment structure, and the second end has second discernment structure, and the third end has third discernment structure, and the fourth end has fourth discernment structure, and first discernment structure, second discernment structure and third discernment structure, fourth discernment structure are different. According to the utility model, the two ends of the main winding and the auxiliary winding are respectively provided with different identification structures, so that the terminal areas of the main winding and the auxiliary winding are separated, the probability of line misconnection is greatly reduced, the production efficiency is improved, and the production cost is effectively reduced.

Description

Coil for motor and motor convenient to connect

Technical Field

The utility model relates to a coil for a motor and a motor convenient to connect, and belongs to the technical field of motor equipment.

Background

The stator of the motor is an important component of motors such as a generator, a starter and the like. The stator is an important part of the motor. The stator consists of a stator core, a stator winding and a stand. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field to generate (output) current. Stator windings refer to windings mounted on the stator, i.e. copper wires wound on the stator. Windings are a generic term for a phase or whole electromagnetic circuit formed by a plurality of coils or groups of coils. The motors are classified into two types, namely, centralized type and distributed type, according to the winding shape of the coils and the different embedded wiring modes. The winding and embedding of the centralized winding are simpler, but the efficiency is lower and the running performance is also poor. Most of stators of alternating current motors are distributed windings, and the motors are respectively designed to be different in winding types and specifications according to different types, models and coil embedding and winding process conditions.

In the existing speed regulating motor on the market, a main winding and an auxiliary winding are respectively embedded into a stator after being wound by a winding die, and then wire ends are respectively led out from two ends of the main winding and the auxiliary winding and are correspondingly connected with other wire groups.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a coil for a motor and a motor which are convenient to connect.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model comprises the following steps:

the utility model provides a coil for a motor, which is convenient to connect and comprises a main winding, an auxiliary winding and a capacitor, wherein the main winding comprises a first end and a second end, the auxiliary winding comprises a third end and a fourth end, the capacitor comprises a fifth end and a sixth end, the first end is connected with a first outgoing line, the first end is connected with the fifth end through a second outgoing line, the second end is connected with the fourth end, a third outgoing line is connected between the second end and the fourth end, the third end is connected with the sixth end through a fourth outgoing line, the first end is provided with a first identification structure, the second end is provided with a second identification structure, the third end is provided with a third identification structure, the fourth end is provided with a fourth identification structure, and the first identification structure, the second identification structure, the third identification structure and the fourth identification structure are different.

Further, at least one of the color, shape, and pattern features of the first, second, third, and fourth recognition structures are different.

Further, the first recognition structure comprises a first wire sleeve, the second recognition structure comprises a second wire sleeve, the third recognition structure comprises a third wire sleeve, the fourth recognition structure comprises a fourth wire sleeve, and the colors of the first wire sleeve, the second wire sleeve, the third wire sleeve and the fourth wire sleeve are different.

Further, the first identification structure comprises a first thread sleeve, the second identification structure comprises a second thread sleeve, the third identification structure comprises a third thread sleeve, the fourth identification structure comprises a fourth thread sleeve, the first thread sleeve and the second thread sleeve are the same in color, the third thread sleeve and the fourth thread sleeve are the same in color, and the first thread sleeve and the third thread sleeve are different in color.

Further, the first outgoing line, the second outgoing line, the third outgoing line and the fourth outgoing line are different in appearance color.

Further, the coil further comprises a first speed regulating winding and a second speed regulating winding, the first speed regulating winding comprises a seventh end and an eighth end, the second speed regulating winding comprises a ninth end and a tenth end, the seventh end is connected between the second end and the fourth end, the eighth end is connected with the ninth end, a fifth outgoing line is connected between the eighth end and the ninth end, the tenth end is connected with a sixth outgoing line, the seventh end is provided with a fifth identification structure, the eighth end is provided with a sixth identification structure, the ninth end is provided with a seventh identification structure, the tenth end is provided with an eighth identification structure, the fifth identification structure, the sixth identification structure, the seventh identification structure, the eighth identification structure are different from the first identification structure, the second identification structure, the third identification structure and the fourth identification structure, and the fifth identification structure, the sixth identification structure are different from the seventh identification structure and the eighth identification structure.

Further, at least one of the color feature, the shape feature, and the pattern feature of the first recognition structure, the second recognition structure, the third recognition structure, the fourth recognition structure, the fifth recognition structure, the sixth recognition structure, the seventh recognition structure, and the eighth recognition structure is different.

Further, the first recognition structure includes a first wire sleeve, the second recognition structure includes a second wire sleeve, the third recognition structure includes a third wire sleeve, the fourth recognition structure includes a fourth wire sleeve, the fifth recognition structure includes a fifth wire sleeve, the sixth recognition structure includes a sixth wire sleeve, the seventh recognition structure includes a seventh wire sleeve, the eighth recognition structure includes an eighth wire sleeve, and colors of the first wire sleeve, the second wire sleeve, the third wire sleeve, the fourth wire sleeve, the fifth wire sleeve, the sixth wire sleeve, the seventh wire sleeve, and the eighth wire sleeve are different.

Further, the colors of the first wire sleeve and the second wire sleeve are the same, the colors of the third wire sleeve and the fourth wire sleeve are the same, the colors of the fifth wire sleeve and the sixth wire sleeve are the same, the colors of the seventh wire sleeve and the eighth wire sleeve are the same, and the colors of the first wire sleeve, the third wire sleeve, the fifth wire sleeve and the seventh wire sleeve are different.

Further, the first lead-out wire, the second lead-out wire, the third lead-out wire, the fourth lead-out wire, the fifth lead-out wire and the sixth lead-out wire are different in appearance color.

The utility model also provides a motor which comprises any coil for the motor, wherein the coil is convenient to connect.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the first identification structure and the second identification structure are respectively arranged at the two ends of the main winding, and the third identification structure and the fourth identification structure are respectively arranged at the two ends of the auxiliary winding, so that the wiring ends of the main winding and the auxiliary winding are effectively distinguished, the connection with other wire sets is facilitated, the probability of misconnection is greatly reduced, the production efficiency is improved, and the production cost is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a circuit diagram in embodiment 1 of the present utility model;

FIG. 2 is a schematic diagram of a stator winding in embodiment 2 of the present utility model;

FIG. 3 is a circuit diagram of embodiment 2 of the present utility model;

fig. 4 is a winding development schematic diagram of the rule stator in embodiment 2 of the present utility model.

Reference numerals illustrate:

100. a main winding; 110. a first end; 120. a second end; 200. an auxiliary winding; 210. a third end; 220. a fourth end; 300. a capacitor; 310. a fifth end; 320. a sixth end; 400. a first speed regulation group; 410. a seventh end; 420. an eighth end; 500. a second speed regulation group; 510. a ninth end; 520. a tenth end; 610. a first lead-out wire; 620. a second lead-out wire; 630. a third lead-out wire; 640. a fourth lead-out wire; 650. a fifth lead-out wire; 660. a sixth lead wire; 700. a thermal protector.

Detailed Description

In view of the shortcomings in the prior art, the inventor of the present utility model has long studied and practiced in a large number of ways to propose the technical scheme of the present utility model. The technical scheme, the implementation process, the principle and the like are further explained as follows.

Example 1

Referring to fig. 1, the present utility model provides a coil for a motor, which includes a main winding 100, an auxiliary winding 200, and a capacitor 300, wherein the main winding 100 includes a first end 110 and a second end 120, the auxiliary winding 200 includes a third end 210 and a fourth end 220, the capacitor 300 includes a fifth end 310 and a sixth end 320, wherein the first end 110 is connected with a first lead wire 610, the first end 110 and the fifth end 310 are connected through a second lead wire 620, the second end 120 is connected with the fourth end 220, a third lead wire 630 is connected between the second end 120 and the fourth end 220, the third end 210 and the sixth end 320 are connected through a fourth lead wire 640, the first end 110 has a first identification structure, the second end 120 has a second identification structure, the third end 210 has a third identification structure, the fourth end 220 has a fourth identification structure, and the first identification structure, the second identification structure and the third identification structure are different.

In this embodiment, the coil for a motor, which is convenient to connect, includes a main winding 100, an auxiliary winding 200 and a capacitor 300, in use, the main winding 100 is wound by a winding former, the wound main winding 100 is embedded in the bottom of a stator slot of the motor, wherein a first end 110 and a second end 120 of the main winding 100 are led out of the stator slot, the auxiliary winding 200 is wound by another winding former, the wound auxiliary winding 200 is embedded in the upper part of the stator slot of the motor, wherein a third end 210 and a fourth end 220 of the auxiliary winding 200 are led out of the stator slot, the first end 110 and the second end 120 of the main winding 100 are provided with a first identification structure and a second identification structure, respectively, and the third end 210 and the fourth end 220 of the auxiliary winding 200 are provided with a third identification structure and a fourth identification structure, respectively, which are different from each other, so that the main winding 100 and the auxiliary winding 200 are effectively distinguished from each other, and are convenient to connect with other wire sets.

When in connection, one end of the first lead wire 610 is connected with the first end 110 of the main winding 100, in addition, the other end of the first lead wire 610 can be respectively connected with the thermal protector 700 and the power supply in series, two ends of the second lead wire 620 are respectively connected with the first end 110 of the main winding 100 and the fifth end 310 of the capacitor 300, two ends of the fourth lead wire 640 are respectively connected with the sixth end 320 of the capacitor 300 and the third end 210 of the auxiliary winding 200, the second end 120 of the main winding 100 is connected with the fourth end 220 of the auxiliary winding 200, and the third lead wire 630 is connected at the connection position. In the above connection process, the first end 110, the second end 120, the third end 210, and the fourth end 220 of the main winding 100 and the auxiliary winding 200 are respectively provided with the first recognition structure, the second recognition structure, the third recognition structure, and the fourth recognition structure, so that the main winding 100 and the auxiliary winding 200 can be clearly and conveniently recognized when the outgoing lines are connected according to different recognition structures. In actual operation, one end of the first lead wire 610 is connected to one end of the first recognition structure, the second lead wire 620 is connected to one end of the first recognition structure and one end of the capacitor 300, one end of the third lead wire 630 is connected to one end of the second recognition structure and one end of the fourth recognition structure, and the fourth lead wire 640 is connected to one end of the third recognition structure and the other end of the capacitor 300, thereby completing the connection. By using the mode, the accuracy and the connection efficiency of the connection line between the main winding 100 and the auxiliary winding 200 are improved, the problems of misconnection or missed connection and the like caused by similar appearance and more wire ends of the main winding 100 and the auxiliary winding 200 are effectively avoided, the production efficiency is improved, and the time cost is also greatly saved.

Further, at least one of the color feature, the shape feature, and the pattern feature of the first recognition structure, the second recognition structure, the third recognition structure, and the fourth recognition structure is different.

In the above structure, the first, second, third and fourth identification structures may be provided at the first, second, third and fourth ends 110, 120, 210, 220 of the main winding 100, respectively, and may be color features, for example, a portion of the first end 110 is coated with a green insulating paint to form the first identification structure, a portion of the second end 120 is coated with a green or blue insulating paint to form the second identification structure, a portion of the third end 210 is coated with a yellow insulating paint to form the third identification structure, and a portion of the fourth end 220 is coated with a yellow or orange insulating paint to form the fourth identification structure. In addition, in other embodiments, the above-mentioned identification structure is a shape feature or a pattern feature, or is a combination of several of a color feature, a shape feature, and a pattern feature, so that the identification is more convenient to improve. For example, a first recognition structure is formed by sleeving a triangular wire sleeve at the first end 110, a second recognition structure is formed by sleeving a circular wire sleeve at the second end 120, a third recognition structure is formed by sleeving a elliptical wire sleeve at the third end 210, and a fourth recognition structure is formed by sleeving a rectangular wire sleeve at the fourth end 220.

Further, the first identification structure comprises a first thread sleeve, the second identification structure comprises a second thread sleeve, the third identification structure comprises a third thread sleeve, the fourth identification structure comprises a fourth thread sleeve, and the colors of the first thread sleeve, the second thread sleeve, the third thread sleeve and the fourth thread sleeve are different.

In the above embodiment, the first end 110 and the second end 120 of the main winding 100 are respectively wrapped with the first wire sleeve and the second wire sleeve, and the third end 210 and the fourth end 220 of the auxiliary winding 200 are wrapped with the third wire sleeve and the fourth wire sleeve, where the outer appearances of the first wire sleeve, the second wire sleeve, the third wire sleeve and the fourth wire sleeve are different, so that the main winding 100 and the auxiliary winding 200 can be distinguished conveniently, where the first wire sleeve, the second wire sleeve, the third wire sleeve and the fourth wire sleeve are colored yellow cured tubes, the manufacturing materials are easy to obtain, and the manufacturing is easy.

Preferably, the first identification structure comprises a first thread sleeve, the second identification structure comprises a second thread sleeve, the third identification structure comprises a third thread sleeve, the fourth identification structure comprises a fourth thread sleeve, the first thread sleeve and the second thread sleeve are the same in color, the third thread sleeve and the fourth thread sleeve are the same in color, and the first thread sleeve and the third thread sleeve are different in color.

In the connection process of the main winding 100 and the auxiliary winding 200 with other wire sets, the main winding 100 and the auxiliary winding 200 are mainly distinguished, but the two ends of the main winding 100 and the auxiliary winding 200 do not need to be distinguished, so that the second identification structure of the second end 120 of the first identification structure 110 can be identical, and the third identification structure of the third end 210 and the fourth identification structure of the fourth end 220 can be identical, specifically, the first wire sleeve and the second wire sleeve sleeved at the first end 110 and the second end 120 are identical, and the third wire sleeve and the fourth wire sleeve sleeved at the third end 210 and the fourth end 220 are identical. On one hand, the number of the wire sleeves with different colors can be reduced, and the cost is further reduced; in addition, each end of the main winding 100 and the auxiliary winding 200 is provided with a different color, which is inconvenient for memorization, and thus a misconnection phenomenon is also easily caused.

Further, the first lead line 610, the second lead line 620, the third lead line 630, and the fourth lead line 640 have different outer colors.

In the above-described structure, in order to better realize the connection between the respective leads and the main winding 100 and the auxiliary winding 200, the first lead wire 610, the second lead wire 620, the third lead wire 630, and the fourth lead wire 640 are respectively configured as different external color lead wires, so that the respective lead wires are conveniently connected with the main winding 100 and the auxiliary winding 200, for example, the first lead wire 610 is a black wire, the second lead wire 620 is a white wire, the third lead wire 630 is a red wire, the fourth lead wire 640 is an orange wire, and when the lead wires are connected, the lead wires with the corresponding colors are connected with the end wires with different external colors in the main winding 100 and the auxiliary winding 200, thereby further improving the connection efficiency.

Example 2

Referring to fig. 2, 3, and 4, the coil for a motor that facilitates connection further includes a first governor winding 400 and a second governor winding 500, the first governor winding 400 includes a seventh end 410 and an eighth end 420, the second governor winding 500 includes a ninth end 510 and a tenth end 520, the seventh end 410 is connected between the second end 120 and the fourth end 220, the eighth end 420 and the ninth end 510 are connected, and a fifth outgoing line 650 is connected between the eighth end 420 and the ninth end 510, the tenth end 520 is connected with a sixth outgoing line 660, the seventh end 410 has a fifth recognition structure, the eighth end 420 has a sixth recognition structure, the ninth end 510 has a seventh recognition structure, the tenth end 520 has an eighth recognition structure, the fifth recognition structure, the sixth recognition structure, the seventh recognition structure, the eighth recognition structure are different from the first recognition structure, the second recognition structure, the third recognition structure, the fourth recognition structure, and the fifth recognition structure are different from the seventh recognition structure, the eighth recognition structure.

Further, at least one of the color feature, the shape feature, and the pattern feature of the first recognition structure, the second recognition structure, the third recognition structure, the fourth recognition structure, the fifth recognition structure, the sixth recognition structure, the seventh recognition structure, and the eighth recognition structure is different.

Further, the first recognition structure includes a first thread sleeve, the second recognition structure includes a second thread sleeve, the third recognition structure includes a third thread sleeve, the fourth recognition structure includes a fourth thread sleeve, the fifth recognition structure includes a fifth thread sleeve, the sixth recognition structure includes a sixth thread sleeve, the seventh recognition structure includes a seventh thread sleeve, the eighth recognition structure includes an eighth thread sleeve, and the colors of the first thread sleeve, the second thread sleeve, the third thread sleeve, the fourth thread sleeve, the fifth thread sleeve, the sixth thread sleeve, the seventh thread sleeve, and the eighth thread sleeve are different.

The first end 110, the second end 120, the third end 210, the fourth end 220, the seventh end 410, the eighth end 420, the ninth end 510, and the tenth end 520 are respectively wrapped with a first wire sleeve, a second wire sleeve, a third wire sleeve, and a fourth wire sleeve, and the fourth wire sleeve, the fifth wire sleeve, the sixth wire sleeve, the seventh wire sleeve, and the eighth wire sleeve are different in color, so that the distinction is facilitated.

Preferably, the first wire sleeve and the second wire sleeve have the same color, the third wire sleeve and the fourth wire sleeve have the same color, the fifth wire sleeve and the sixth wire sleeve have the same color, the seventh wire sleeve and the eighth wire sleeve have the same color, and the first wire sleeve, the third wire sleeve, the fifth wire sleeve and the seventh wire sleeve have different colors.

Further, the first lead line 610, the second lead line 620, the third lead line 630, the fourth lead line 640, the fifth lead line 650, and the sixth lead line 660 have different outer colors.

In the above embodiment, the motor coil that is convenient to connect further includes a first speed regulating winding 400 and a second speed regulating winding 500, which are connected to the main winding 100, the auxiliary winding 200, and the capacitor 300 to form a T-tap speed regulating line. For example, in a range hood using an ac motor, 3-speed regulation is often required in the market at present, tap speed regulation is simple and low in price, the tap speed regulation has two types, namely a T type and an L type, because the range hood product has strict requirements on running abnormal sounds, the L type is natural to have abnormal sounds in middle and low grades, and the T type speed regulation has no abnormal sounds in middle and low grades, so more and more motors use T type speed regulation, because the T type speed regulation has 8 terminals in total of the main winding 100, the auxiliary winding 200, the first speed regulation winding 400 and the second speed regulation winding 500 after stator coil insertion, and the connection is quite complex. To solve the above problems, the first and second speed regulating windings 400 and 500 are currently purchased in the market either by purchasing two color enamel wires or by making their wire diameters the same. The enameled wire with thinner color is not universal, the price floats up much, and the purchase is limited. The two groups of speed regulating windings are designed into the same wire diameter, and the speed ratio of each gear is required to be smaller than 80% because the range hood product prescribes that the speed ratio of each gear is smaller than 800r/min if the high gear is 1000 r/min. If the speed regulating winding is made of a wire diameter, the copper consumption of low grade is increased, the slot filling rate of the stator is increased, the cost of the motor is increased, and the production difficulty is increased.

Therefore, wire sleeves having identification structures are respectively sleeved at both ends of the main winding 100, the auxiliary winding 200, the first speed regulating winding 400 and the second speed regulating winding 500. For example, a first wire sleeve and a second wire sleeve with green outer appearance are respectively sleeved at the first end 110 and the second end 120 of the main winding group, a third wire sleeve and a fourth wire sleeve with yellow outer appearance are respectively sleeved at the third end 210 and the fourth end 220 of the auxiliary winding 200, a fifth wire sleeve and a sixth wire sleeve with white outer appearance are respectively sleeved at the seventh end 410 and the eighth end 420 of the first speed regulating winding 400, and a seventh wire sleeve and an eighth wire sleeve with red outer appearance are respectively sleeved at the ninth end 510 and the tenth end 520 of the second speed regulating winding 500. The outer colors of the lead wires connected to the main winding 100, the auxiliary winding 200, the first governor winding 400, and the second governor winding 500 are also different, for example, the first lead wire 610 is a black wire, the second lead wire 620 is a white wire, the third lead wire 630 is a red wire, the fourth lead wire 640 is an orange wire, the fifth lead wire 650 is a blue wire, and the sixth lead wire 660 is a brown wire.

When connected, since the main winding 100 and the first and second speed regulating windings 400 and 500 are embedded in the same slot and first embedded in the stator slot bottom during the wire winding process, they are formed by using the same wire winding die, using longer main wire winding die, the first layer is wound around the main winding 100, the second layer is wound around the first speed regulating winding 400, and the uppermost layer of the third layer is wound around the second speed regulating winding 500, which is relatively shorter than the main winding 100, and the speed regulating windings are longer than the upper layer coils of the wire winding die, which is required for motor performance. The auxiliary winding 200 is wound by a short auxiliary die, and the auxiliary winding 200 is embedded in the stator slot after the main winding 100 is embedded, so that the auxiliary winding 200 is embedded in the upper part of the slot of the stator. The main and two groups of speed regulating windings are wound, the two ends of the head and the tail of the main winding 100 are sleeved with two green small wax pipes, the two ends of the head and the tail of the first speed regulating winding 400 are sequentially sleeved with two white small wax pipes, the two ends of the head and the tail of the second speed regulating winding 500 are respectively sleeved with two red small wax pipes, the die is disassembled, and the main bag with six small pipes is carefully placed into a turnover box. Similarly, the auxiliary winding 200 is wound by using a short auxiliary winding mould, two yellow small wax pipes are sleeved at the head end and the tail end, the mould is removed, and the auxiliary bag with the two small pipes is also placed into a turnover box. According to fig. 3, six outlets are required to receive the corresponding outlets according to the color of the small wax tube in fig. 3. The first lead line 610 of the white line and the fourth lead line 640 of the orange line are connected to the capacitor 300, the first lead line 610 of the black line is a power common line, and the third lead line 630 of the red line, the fifth lead line 650 of the blue line and the sixth lead line 660 of the brown line are connected to high, medium and low levels, respectively. The wire outlet end of the coil inserting stator positions the head and the tail of each winding according to the figure 3, and is mainly distinguished by the color of a small wax tube of the head and the tail sleeve during winding. The six lead wires are easily connected by just distinguishing the windings according to the color of the small wax tube and positioning the head and tail of the thermal protector 700 and the head and tail of the four groups of windings. As shown in fig. 2, the outgoing lines of black, brown, blue and red are bound from the outgoing line end of the coil inserting stator in a counterclockwise direction and come out from the direction specified by the stator (the direction of a dotted line in fig. 2). The outgoing lines of white and orange are bound well from the outgoing line end of the coil inserting stator in the clockwise direction and also come out from the direction regulated by the stator.

It should be understood that the above embodiments are merely for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement the same according to the present utility model without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a coil for motor convenient to connect, including main winding, auxiliary winding, electric capacity, main winding includes first end and second end, auxiliary winding includes third end and fourth end, electric capacity includes fifth end and sixth end, its characterized in that: the first end is connected with a first outgoing line, the first end with the fifth end is connected through the second outgoing line, the second end with the fourth end is connected, just be connected with the third outgoing line between second end and the fourth end, the third end with the sixth end is connected through the fourth outgoing line, the first end has first recognition structure, the second end has the second recognition structure, the third end has the third recognition structure, the fourth end has the fourth recognition structure, first recognition structure, second recognition structure with third recognition structure, fourth recognition structure are different.

2. A coil for a motor for facilitating connection according to claim 1, wherein: at least one of the color features, shape features, pattern features of the first, second, third, and fourth recognition structures are different.

3. A coil for a motor for facilitating connection according to claim 2, wherein: the first recognition structure comprises a first wire sleeve, the second recognition structure comprises a second wire sleeve, the third recognition structure comprises a third wire sleeve, the fourth recognition structure comprises a fourth wire sleeve, and the colors of the first wire sleeve, the second wire sleeve, the third wire sleeve and the fourth wire sleeve are different.

4. A coil for a motor for facilitating connection according to claim 2, wherein: the first recognition structure comprises a first wire sleeve, the second recognition structure comprises a second wire sleeve, the third recognition structure comprises a third wire sleeve, the fourth recognition structure comprises a fourth wire sleeve, the colors of the first wire sleeve and the second wire sleeve are the same, the colors of the third wire sleeve and the fourth wire sleeve are the same, and the colors of the first wire sleeve and the third wire sleeve are different.

5. A coil for a motor for facilitating connection according to claim 2, wherein: the appearance colors of the first outgoing line, the second outgoing line, the third outgoing line and the fourth outgoing line are different.

6. A coil for a motor for facilitating connection according to claim 1, wherein: the speed regulating winding comprises a first speed regulating winding and a second speed regulating winding, wherein the first speed regulating winding comprises a seventh end and an eighth end, the second speed regulating winding comprises a ninth end and a tenth end, the seventh end is connected between the second end and the fourth end, the eighth end is connected with the ninth end, a fifth outgoing line is connected between the eighth end and the ninth end, the tenth end is connected with a sixth outgoing line, the seventh end is provided with a fifth identification structure, the eighth end is provided with a sixth identification structure, the ninth end is provided with a seventh identification structure, the tenth end is provided with an eighth identification structure, the fifth identification structure, the sixth identification structure, the seventh identification structure, the eighth identification structure are different from the first identification structure, the second identification structure, the third identification structure and the fourth identification structure, and the fifth identification structure, the sixth identification structure are different from the seventh identification structure and the eighth identification structure.

7. A coil for a motor for facilitating connection as defined in claim 6, wherein: the first, second, third, fourth, fifth, sixth, seventh, eighth identification features differ in at least one of color, shape, pattern features.

8. A coil for a motor for facilitating connection as defined in claim 7, wherein: the first recognition structure comprises a first wire sleeve, the second recognition structure comprises a second wire sleeve, the third recognition structure comprises a third wire sleeve, the fourth recognition structure comprises a fourth wire sleeve, the fifth recognition structure comprises a fifth wire sleeve, the sixth recognition structure comprises a sixth wire sleeve, the seventh recognition structure comprises a seventh wire sleeve, the eighth recognition structure comprises an eighth wire sleeve, and the colors of the first wire sleeve, the second wire sleeve, the third wire sleeve, the fourth wire sleeve, the fifth wire sleeve, the sixth wire sleeve, the seventh wire sleeve and the eighth wire sleeve are different;

and/or the colors of the first wire sleeve and the second wire sleeve are the same, the colors of the third wire sleeve and the fourth wire sleeve are the same, the colors of the fifth wire sleeve and the sixth wire sleeve are the same, the colors of the seventh wire sleeve and the eighth wire sleeve are the same, and the colors of the first wire sleeve, the third wire sleeve, the fifth wire sleeve and the seventh wire sleeve are different.

9. A coil for a motor for facilitating connection according to claim 8, wherein: the first outgoing line, the second outgoing line, the third outgoing line, the fourth outgoing line, the fifth outgoing line and the sixth outgoing line are different in appearance color.

10. An electric machine, comprising: a coil for a motor which is convenient for connection as claimed in any one of claims 1 to 9.