CN116470701A

CN116470701A - Connection structure, motor, compressor and refrigeration plant

Info

Publication number: CN116470701A
Application number: CN202210057939.6A
Authority: CN
Inventors: 袁维洁
Original assignee: Guangdong Meizhi Precision Manufacturing Co Ltd; Anhui Meizhi Precision Manufacturing Co Ltd
Current assignee: Guangdong Meizhi Precision Manufacturing Co Ltd; Anhui Meizhi Precision Manufacturing Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2023-07-21

Abstract

The invention provides a connecting structure, a motor, a compressor and refrigeration equipment. Wherein, connection structure for the motor, the motor includes stator and protection device, and the stator includes stator core, winding and insulating part, and protection device is connected with the lead-out wire of winding, and connection structure includes: a main body portion located on the peripheral side of the winding; the first connecting piece is arranged on the main body part and is used for connecting the stator; the second connecting piece is arranged on the main body part and is used for being connected with the protection device. The invention simplifies the assembly process of the protection device and the stator, reduces the input of manpower resources, can reduce the occurrence probability of breakage of the protection device when the protection device is assembled, is beneficial to reducing the production cost of the motor and is beneficial to improving the yield of products while ensuring the effectiveness and the reliability of connection of the outgoing line of the winding and the protection device through the reasonable connection structure.

Description

Connection structure, motor, compressor and refrigeration plant

Technical Field

The invention relates to the technical field of motors, in particular to a connecting structure, a motor, a compressor and refrigeration equipment.

Background

The motor comprises a protection device, and the protection device can ensure that the motor can stop and jump in time under abnormal conditions, thereby playing a role in protecting the motor. In the related art, the protection device is manually fixed by using the binding wire, and the protection device is easy to damage and is complex to operate in the binding process.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the invention proposes a connection structure.

A second aspect of the invention proposes an electric machine.

A third aspect of the present invention provides a compressor.

A fourth aspect of the invention proposes a refrigeration appliance.

In view of this, a first aspect of the present invention proposes a connection structure for an electric machine, the electric machine comprising a stator and a protection device, the stator comprising a stator core, windings and insulation, the protection device being connected to lead wires of the windings, the connection structure comprising: a main body portion located on the peripheral side of the winding; the first connecting piece is arranged on the main body part and is used for connecting the stator; the second connecting piece is arranged on the main body part and is used for being connected with the protection device.

The connecting structure comprises a main body part, a first connecting piece and a second connecting piece, wherein the first connecting piece and the second connecting piece are arranged on the main body part, namely, the main body part has the function of supporting and fixing the first connecting piece and the second connecting piece.

Specifically, the first connecting piece is used for connecting the stator, and the second connecting piece is used for connecting the protection device. That is, the stator and the protector are assembled together by the connection structure. Because the first connecting piece is connected with the stator, the matching size of the connecting structure and the stator can be ensured. The second connecting piece is connected with the protection device, so that the matching size of the protection device and the stator can be ensured.

Specifically, when the motor is assembled, the connecting structure and the stator are assembled together, and then the protecting device and the connecting structure are assembled together.

This setting has simplified the assembly process of protection device and stator when guaranteeing the validity and the reliability that the lead-out wire of winding is connected with protection device, has reduced the input of manpower resources, can reduce the probability of occurrence that protection device was broken when assembling protection device, is favorable to reducing the manufacturing cost of motor to be favorable to promoting the yields of product.

It will be appreciated that the body portion is located on the peripheral side of the windings, i.e. the windings are located between the centre of the stator core and the body portion. The matching structure of the winding and the main body part can play a role in limiting the main body part along the radial direction of the stator core so as to ensure the matching size of the connecting structure and the winding.

It can be understood that the protection device is electrically connected with the outgoing line of the winding, and the protection device can jump and stop in time under the condition of abnormal operation of the motor, thereby playing a role in protecting the motor and improving the use safety and reliability of the motor.

The above connection structure according to the present invention may further have the following additional technical features:

in the above technical solution, further, the first connecting piece includes a first connecting portion; an accommodating area is formed between the end part of the stator core and the winding, and the first connecting part can be inserted into the accommodating area.

In this solution, the first connection piece comprises a first connection portion, between the end of the stator core and the winding, forming a containment zone. Through the cooperation structure of reasonable setting first connecting piece and stator for the first connecting portion of first connecting piece peg graft in holding the region. The contact area and the contact angle of the first connecting piece and the stator are increased, and the stability and the reliability of the connecting structure and the stator assembly are improved.

It is understood that the first connection portion is inserted in the accommodating area, and the stator core and the winding can be in an axial limit connection structure of the stator core.

In any of the above-mentioned aspects, further, along the radial direction of the motor, the length L1 of the first connection portion, the maximum distance L2 from the center of the motor to the outer peripheral wall of the winding, and the minimum distance L3 from the center of the motor to the outer surface of the stator teeth of the stator core satisfy: l1 is more than 0 and less than L2-L3.

In this embodiment, the length of the first connection portion in the radial direction of the motor is denoted as L1, the maximum distance from the center of the motor to the outer peripheral wall of the winding is denoted as L2, and the minimum distance from the center of the motor to the outer surface of the stator teeth of the stator core is denoted as L3. L1, L2 and L3 satisfy: the arrangement ensures the effectiveness and reliability of the assembly of the connecting structure and the stator, wherein L1 is more than 0 and L2-L3.

If L1 is more than or equal to L2-L3, the condition that the end part of the first connecting part is interfered with the rotor of the motor easily occurs, so that safety accidents can be caused, and the use safety and reliability of the motor can not be ensured.

In any of the above technical solutions, further, the first connection portion includes a first connection section and a second connection section, and the first connection section is located between the center of the motor and the second connection section; the first connecting piece further comprises a matching piece, the matching piece is connected with the first connecting section, and the matching piece protrudes out of the outer surface of the second connecting section along the circumferential direction of the motor; wherein, the cooperation piece is used for spacing the slot insulation of insulating part.

In this technical solution, the first connection portion comprises a first connection section and a second connection section, wherein the first connection section is located between the center of the motor and the second connection section. That is, the first connection section is closer to the center of the motor than the second connection section.

Further, the mating piece of the first connecting piece is connected with the outer surface of the first connecting section, and along the circumferential direction of the motor, the mating piece protrudes out of the outer surface of the second connecting section. That is, a stepped structure is formed between the mating member and the second connecting section. Like this, during the assembly connection structure, the slot insulation of insulating part can block and locate step structure department to limit connection structure in the radial direction of motor, connection structure can not break away from in the stator. The stability and reliability of the connection structure and the stator assembly can be ensured.

In any of the above solutions, further, the mating member includes: a first mating portion; the second cooperation portion, along the circumference of motor, first linkage segment is located between first cooperation portion and the second cooperation portion.

In this technical scheme, the cooperation piece includes first cooperation portion and second cooperation portion, and first cooperation portion is connected in the first side of first linkage segment, and the second side of first linkage segment is connected to the second cooperation portion. The first side and the second side of the first connecting section are opposite sides of the connecting section in the circumferential direction of the motor.

It will be appreciated that the first mating portion projects beyond the outer surface of the second connecting section in the circumferential direction of the motor. That is, a stepped structure is formed between the first fitting portion, the second fitting portion, and the second connection section. The groove insulation device is capable of guaranteeing the effectiveness and feasibility of groove insulation of the limiting insulation piece, meanwhile, material investment of the matching piece can be reduced, and production cost of products can be reduced.

Specifically, a part of the slot insulation is clamped at one side of the matching piece facing the second connecting section.

In any of the above technical solutions, further, along the circumferential direction of the motor, the width D1 of the second connection section and the width D2 of the stator teeth of the stator core satisfy: 0 < D1 < D2.

In this embodiment, the width of the second connecting section is denoted as D1 and the width of the stator teeth of the stator core is denoted as D2 along the circumferential direction of the motor. D1 and D2 satisfy: 0 < D1 < D2. The matching piece protrudes out of the outer surface of the second connecting section along the circumferential direction of the motor, so that effective and reliable structural support is provided for the groove insulation of the matching piece, which can effectively limit the insulation piece, by limiting the size of the second connecting section.

If D1 is greater than or equal to D2, the second connection section has an oversized dimension in the circumferential direction of the motor, and the dimension of the mating member in the circumferential direction of the motor is affected, so that the mating member cannot limit the slot insulation of the insulating member.

In any of the above technical solutions, further, the first connecting piece includes a second connecting portion, one of the second connecting portion and the stator core is provided with a connecting slot, and the other is provided with a protruding portion, and the protruding portion can be inserted into the connecting slot.

In this technical scheme, first connecting piece includes the second connecting portion, and one of second connecting portion and stator core is equipped with the spread groove, and another one of second connecting portion and stator core is equipped with the convex part. When the connecting structure is assembled, the convex part is inserted into the connecting groove, so that the connecting structure and the stator are firmly and firmly assembled together.

The connecting groove is matched with the convex part, so that the contact area and the contact angle of the first connecting piece and the stator are increased, and the stability and the reliability of the connecting structure and the stator assembly are improved.

It is understood that the connecting groove is matched with the convex part, and the connecting structure can be limited in the radial direction and the circumferential direction of the motor.

In any of the above solutions, further, the first connecting member includes: the side wings extend from the main body part along the circumferential direction of the motor, the side wings are positioned on the circumferential side of the winding, and the side wings are used for fixing binding wires of the winding.

In this technical solution, the first connecting piece comprises a flank, which is connected with the main body, from which the flank extends in the circumferential direction of the motor.

Since the flanks are located on the circumferential side of the winding, i.e. the flanks are located between the centre of the stator core and the main body portion. The side wings and the main body part are matched with each other, so that the side wings can play a role in limiting the side wings along the radial direction of the stator core, and the matching size of the connecting structure and the winding is ensured.

In addition, the side wings are used for fixing binding wires of the windings, and the binding wires have the functions of fixing the windings and the stator core. Specifically, the side wings have a function of fixing the binding-wire when winding the binding-wire, and the binding-wire fixes the winding and the stator core through the side wings. That is, the side wings and the winding can be tightly assembled together by the binding wires after winding the binding wires, so that the matching size of the protection device and the stator can be ensured, and the use requirement of the connection of the protection device and the outgoing wires of the winding can be met.

Further, as the side wings extend along the circumferential direction of the motor, the contact area and the contact angle of the side wings and the winding are increased, and the stability and the reliability of the assembly of the connecting structure and the stator are improved.

Specifically, the side wings are insulation.

In any of the above technical solutions, further, the side wing is provided with at least one tooth for fixing the binding-wire.

In the technical scheme, the side wings are provided with at least one convex tooth, and the convex tooth has the function of fixing the binding wire. It will be appreciated that the binding-wire is clamped to the tooth as it passes around the flank. And the flank, the stator core and the winding can be bound together by the binding wire under the action of the convex teeth.

In any of the above technical solutions, further, when the number of the teeth is plural, the plural teeth are arranged at intervals along the circumferential direction of the winding.

In this technical scheme, the quantity of dogtooth is a plurality of, and the distribution position of a plurality of dogteeth is set up rationally for a plurality of dogteeth are along the circumference interval arrangement of winding, and this setting can cooperate with stator core's stator tooth, in order to guarantee the validity and the feasibility of the fixed wiring of dogtooth, can also guarantee the steadiness of the fixed winding of wiring and stator core.

In any of the above embodiments, further, the number of wings is a plurality, and the plurality of wings includes at least a first wing and a second wing; the main body portion is located between the first side wing and the second side wing in the circumferential direction of the winding.

In this technical scheme, the quantity of flank is a plurality of, divides the kind of a plurality of flanks, and a plurality of flanks include first flank and second flank at least.

The main body portion is located between the first side wing and the second side wing in the circumferential direction of the winding. That is, the first side flap is attached to the first side of the main body portion and the second side flap is attached to the second side of the main body portion. The first side and the second side of the main body are correspondingly arranged.

The arrangement increases the contact area and contact angle of the side wings and the winding, and is favorable for improving the stability and reliability of the assembly of the connecting structure and the stator.

In any of the above embodiments, further, the side wings are attached to the outer peripheral wall of the winding.

In the technical scheme, the matching structure of the side wings and the windings is further limited, specifically, the side wings are attached to the peripheral wall of the windings, the matching gap between the side wings and the windings is reduced, the difficulty of binding the connecting structure and the windings by the follow-up binding rope is reduced, and structural support is provided for effective assembly of the connecting structure and the stator.

In any of the above embodiments, further, the second connecting member extends from an end of the main body portion in an axial direction of the motor.

In this technical solution, a mating structure of the second connecting member and the main body portion is defined, specifically, the second connecting member is connected with an end portion of the main body portion, and the second connecting member extends from the end portion of the main body portion in the axial direction of the motor. The second connecting piece is detachably connected with the protection device.

In any of the above technical solutions, further, a clamping protrusion is provided on a peripheral side wall of the second connecting piece, and the clamping protrusion is used for fixing the protection device.

In this technical scheme, through the structure that rationally sets up the second connecting piece for the week lateral wall of second connecting piece is equipped with the joint lug. Therefore, when the protection device is assembled, the protection device can be clamped at the clamping convex block to limit the protection device in the axial direction of the motor, and the protection device cannot be separated from the connecting structure. The stability and reliability of the assembly of the connecting structure and the protecting device can be ensured.

It is understood that the mounting groove is surrounded between the clamping projection, the end part of the main body part and the side wall of the second connecting piece, and a part of the protection device is positioned in the mounting groove.

Specifically, the clamping convex block is of an annular structure.

Specifically, the number of the clamping convex blocks is a plurality of, and the plurality of the clamping convex blocks are arranged at intervals along the circumferential direction of the motor.

In particular, at least one of the second connection member and the protection device is an elastic member.

A second aspect of the present invention proposes an electric machine comprising: a stator including windings; the protection device is connected with the outgoing line of the winding; the connecting structure according to any one of the first aspect, wherein the first connecting member is connected to the stator, and the second connecting member is connected to the protection device.

The motor provided by the invention comprises the connecting structure as in any one of the first aspect, so that the motor has all the beneficial effects of the connecting structure, and no statement is made here.

In the above technical scheme, further, the protection device is provided with a connecting hole, the second connecting piece is arranged in the connecting hole in a penetrating mode, and a part of the protection device is clamped between the main body part and the clamping convex block of the second connecting piece.

In this technical scheme, through the cooperation structure that rationally sets up protection device and second connecting piece, protection device is equipped with the connecting hole, and the second connecting piece is equipped with the joint lug.

When the connecting structure and the protecting device are assembled, the second connecting piece penetrates through the connecting hole, and a part of the protecting device is clamped between the main body part and the clamping convex block of the second connecting piece. So as to limit the protection device in the axial direction of the motor, and the protection device cannot be separated from the connecting structure. The stability and reliability of the assembly of the connecting structure and the protecting device can be ensured.

In the above technical solution, further, the protection device includes: a conductive body provided with a conductive portion and a tab; and the insulating part is connected with the outer surface of the conductive main body, the conductive part and the fins extend out of the insulating part, and the fins are connected with the conductive part and the outgoing line.

In this technical solution, the protection device comprises a conductive body and an insulating portion. The insulating part is connected with the outer surface of the conductive main body, and the insulating part has the function of electric isolation to protect the conductive main body.

Further, the conductive part and the fins extend out of the insulating part, the fins are connected with the conductive part, and the fins are connected with the outgoing line of the winding. That is, the tab is electrically connected to the lead wire through the conductive portion.

A third aspect of the present invention proposes a compressor comprising: the motor according to any one of the second aspects.

The compressor provided by the invention comprises the motor as in any one of the second aspects, so that the compressor has all the beneficial effects of the motor, and the description is omitted herein.

A fourth aspect of the present invention proposes a refrigeration apparatus comprising: the connection structure as in any one of the first aspects; or an electric machine as in any of the second aspects; or a compressor as in any of the third aspects.

Specifically, the refrigeration apparatus includes an air conditioner, a refrigerator, a freezer, and the like, which are not listed herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a partially exploded view of an electric machine according to one embodiment of the invention;

fig. 2 shows a schematic structural view of a stator core and a first view of a connection structure of an embodiment of the present invention;

fig. 3 shows a schematic structural view of a stator core and a second view of a connection structure of an embodiment of the present invention;

FIG. 4 shows a schematic structural view of a first view of a connection structure and a protection device of an embodiment of the present invention;

FIG. 5 shows a schematic structural view of a connection structure and a second view of a protection device according to an embodiment of the present invention;

FIG. 6 shows a schematic structural diagram of a connection structure of an embodiment of the present invention;

fig. 7 shows a schematic structural view of a protection device according to an embodiment of the present invention.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 7 is:

100 motors, 110 stators, 112 stator cores, 114 windings, 116 outgoing lines, 120 protection devices, 122 connecting holes, 124 conductive bodies, 126 conductive parts, 128 fins, 130 insulating parts, 140 connecting structures, 142 main body parts, 144 first connecting pieces, 146 second connecting pieces, 148 first connecting pieces, 150 first connecting sections, 152 second connecting sections, 154 matching pieces, 156 first matching parts, 158 second matching parts, 159 flanks, 160 first flanks, 162 second flanks, 164 convex teeth and 166 clamping convex blocks.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A connection structure 140, a motor 100, a compressor, and a refrigerating apparatus according to some embodiments of the present invention are described below with reference to fig. 1 to 7.

Example 1:

as shown in fig. 1, 2, 3, 4, 5, 6 and 7, an embodiment of the first aspect of the present invention proposes a connection structure 140 for an electric machine 100, the electric machine 100 comprising a stator 110 and a protection device 120, the stator 110 comprising a stator core 112, windings 114 and insulation members, the protection device 120 being connected with the outgoing lines 116 of the windings 114, the connection structure 140 comprising a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connecting member 144 is disposed on the main body 142, and the first connecting member 144 is used for connecting the stator 110.

The second connecting piece 146 is disposed on the main body 142, and the second connecting piece 146 is used for connecting the protection device 120.

In detail, the connection structure 140 includes a main body portion 142, a first connection member 144 and a second connection member 146, wherein the first connection member 144 and the second connection member 146 are provided to the main body portion 142, that is, the main body portion 142 has a function of supporting and fixing the first connection member 144 and the second connection member 146.

Specifically, the first connector 144 is used to connect to the stator 110, and the second connector 146 is used to connect to the protection device 120. That is, the stator 110 and the protector 120 are assembled together by the connection structure 140. Since the first connecting member 144 is connected to the stator 110, the matching size of the connecting structure 140 and the stator 110 can be ensured. Since the second connector 146 is connected to the protecting device 120, the matching size of the protecting device 120 and the stator 110 can be ensured.

Specifically, when assembling the motor 100, the connection structure 140 is assembled with the stator 110, and then the protection device 120 is assembled with the connection structure 140.

The arrangement simplifies the assembly process of the protecting device 120 and the stator 110 while ensuring the connection effectiveness and reliability of the outgoing line 116 of the winding 114 and the protecting device 120, reduces the input of manpower resources, can reduce the occurrence probability of breakage of the protecting device 120 when the protecting device 120 is assembled, is beneficial to reducing the production cost of the motor 100 and improving the yield of products.

It will be appreciated that the body portion 142 is located on the peripheral side of the windings 114, i.e., the windings 114 are located between the center of the stator core 112 and the body portion 142. The mating structure of the windings 114 and the body portion 142 can play a role in radially spacing the body portion 142 along the stator core 112 to ensure the mating dimension of the connection structure 140 and the windings 114.

It can be appreciated that the protection device 120 is electrically connected with the lead wires 116 of the windings 114, and the protection device 120 can jump and stop in time under the abnormal operation condition of the motor 100, so as to protect the motor 100, and improve the use safety and reliability of the motor 100.

Example 2:

as shown in fig. 1, 2, 3, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 2 provides a connection structure 140 for an electric machine 100, the electric machine 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and insulation members, the protection device 120 being connected with the outgoing lines 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

Further, as shown in fig. 2, 5 and 6, the first connector 144 includes a first connection portion 148.

A receiving area is formed between the end of the stator core 112 and the winding 114, and the first connection portion 148 can be inserted into the receiving area.

In detail, the first connection member 144 includes a first connection portion 148, and a receiving area is formed between an end of the stator core 112 and the winding 114. By properly arranging the mating structures of the first connector 144 and the stator 110, the first connecting portion 148 of the first connector 144 is inserted into the receiving area. This arrangement is advantageous for increasing the contact area and contact angle between the first connecting member 144 and the stator 110, and for improving the stability and reliability of the assembly of the connecting structure 140 and the stator 110.

It is understood that the first connection portion 148 is inserted in the receiving area, and the stator core 112 and the winding 114 can limit the connection structure 140 in the axial direction of the stator core 112.

Example 3:

as shown in fig. 1, 2, 3, 4, 5, 6 and 7, on the basis of embodiment 2, embodiment 3 provides a connection structure 140 for an electric machine 100, the electric machine 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and insulation members, the protection device 120 being connected with the outgoing lines 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connector 144 includes a first connection portion 148.

Further, as shown in fig. 3 and 5, in the radial direction of the motor 100, the length L1 of the first connection portion 148, the maximum distance L2 from the center of the motor 100 to the outer peripheral wall of the winding 114, and the minimum distance L3 from the center of the motor 100 to the outer surface of the teeth of the stator 110 of the stator core 112 satisfy: l1 is more than 0 and less than L2-L3.

In detail, in the radial direction of the motor 100, the length of the first connection portion 148 is denoted as L1, the maximum distance from the center of the motor 100 to the outer circumferential wall of the winding 114 is denoted as L2, and the minimum distance from the center of the motor 100 to the outer surface of the teeth of the stator 110 of the stator core 112 is denoted as L3. L1, L2 and L3 satisfy: 0 < L1 < L2-L3, which ensures the effectiveness and reliability of the assembly of the connection structure 140 with the stator 110.

If L1 is greater than or equal to L2-L3, interference between the end of the first connecting portion 148 and the rotor of the motor 100 is likely to occur, and thus, a safety accident may be caused, and the safety and reliability of the use of the motor 100 may not be ensured.

Example 4:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 2, embodiment 4 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and an insulator, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connector 144 includes a first connection portion 148.

Further, as shown in fig. 4, the first connection portion 148 includes a first connection section 150 and a second connection section 152.

The first connection section 150 is located between the center of the motor 100 and the second connection section 152.

The first connector 144 further includes a mating member 154, the mating member 154 connecting the first connector segment 150.

Along the circumference of the motor 100, the mating member 154 protrudes beyond the outer surface of the second connecting section 152.

Wherein the mating member 154 is used for slot insulation of the spacing insulator.

In detail, the first connection portion 148 includes a first connection section 150 and a second connection section 152, wherein the first connection section 150 is located between the center of the motor 100 and the second connection section 152. That is, the first connection section 150 is closer to the center of the motor 100 than the second connection section 152.

In addition, the mating member 154 of the first connecting member 144 is connected with the outer surface of the first connecting section 150, and the mating member 154 protrudes from the outer surface of the second connecting section 152 in the circumferential direction of the motor 100. That is, a stepped structure is formed between the fitting 154 and the second connecting section 152. In this way, when assembling the connection structure 140, the slot insulation of the insulation member can be clamped at the step structure to limit the connection structure 140 in the radial direction of the motor 100, and the connection structure 140 is not separated from the stator 110. The stability and reliability of the assembly of the connection structure 140 and the stator 110 can be ensured.

Further, as shown in fig. 6, the fitting 154 includes a first fitting portion 156 and a second fitting portion 158.

The first connection section 150 is located between the first mating portion 156 and the second mating portion 158 in the circumferential direction of the motor 100.

The fitting 154 includes a first fitting portion 156 and a second fitting portion 158, wherein the first fitting portion 156 is connected to a first side of the first connecting section 150, and the second fitting portion 158 is connected to a second side of the first connecting section 150. The first and second sides of the first connection section 150 are opposite sides of the connection section in the circumferential direction of the motor 100.

It will be appreciated that the first mating portion 156 projects beyond the outer surface of the second connecting section 152 in the circumferential direction of the motor 100, and the second mating portion 158 projects beyond the outer surface of the second connecting section 152. That is, a stepped structure is formed between the first fitting portion 156, the second fitting portion 158, and the second connection section 152. This arrangement is in guaranteeing the effectiveness and the feasibility of the slot insulation of spacing insulating part, and reducible mating part 154's material input is favorable to reducing the manufacturing cost of product.

Specifically, a portion of the slot insulator is snapped onto a side of the mating member 154 facing the second connecting segment 152.

Further, as shown in fig. 3 and 5, the width D1 of the second connecting section 152, the width D2 of the teeth of the stator 110 of the stator core 112, in the circumferential direction of the motor 100 satisfy: 0 < D1 < D2.

Here, the width of the second connecting section 152 in the circumferential direction of the motor 100 is denoted as D1, and the width of the teeth of the stator 110 of the stator core 112 is denoted as D2. D1 and D2 satisfy: 0 < D1 < D2. Since the mating member 154 protrudes beyond the outer surface of the second connecting section 152 in the circumferential direction of the motor 100, by defining the dimensions of the second connecting section 152, effective and reliable structural support is provided for the slot insulation of the mating member 154 that effectively limits the insulation.

If D1 is greater than or equal to D2, the dimension of the second connecting section 152 in the circumferential direction of the motor 100 is too large, and the dimension of the mating member 154 in the circumferential direction of the motor 100 is affected, so that the mating member 154 cannot limit the slot insulation of the insulating member.

Example 5:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 5 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and an insulator, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

Further, the first connector 144 includes a second connector.

One of the second connection portion and the stator core 112 is provided with a connection groove, and the other is provided with a protrusion, which can be inserted into the connection groove.

In detail, the first connection member 144 includes a second connection portion, one of the second connection portion and the stator core 112 is provided with a connection groove, and the other of the second connection portion and the stator core 112 is provided with a protrusion. When the connection structure 140 is assembled, the protrusions are inserted into the connection grooves, so that the connection structure 140 and the stator 110 are stably and securely assembled together.

The connecting groove is matched with the convex part, so that the contact area and the contact angle of the first connecting piece 144 and the stator 110 are increased, and the stability and the reliability of the assembly of the connecting structure 140 and the stator 110 are improved.

It is appreciated that the coupling groove cooperates with the protrusion to limit the coupling structure 140 in the radial and circumferential directions of the motor 100.

Example 6:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 6 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and an insulator, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

Further, as shown in fig. 2, the first connector 144 includes a flap 159.

The side wings 159 extend from the main body 142 in the circumferential direction of the motor 100, the side wings 159 being located at the circumferential side of the winding 114, and the side wings 159 being used to fix the binding-wire of the winding 114.

In detail, the first connection member 144 includes a wing 159, the wing 159 being connected to the main body portion 142, the wing 159 extending from the main body portion 142 in a circumferential direction of the motor 100.

Since the side wings 159 are located on the circumferential side of the winding 114, that is, the side wings 159 are located between the center of the stator core 112 and the main body portion 142. The mating structure of the side wings 159 and the body portion 142 can function to radially constrain the side wings 159 along the stator core 112 to ensure the mating dimensions of the connection structure 140 and the windings 114.

In addition, the side wings 159 serve to fix binding wires of the winding 114, which have the function of fixing the winding 114 and the stator core 112. Specifically, the side wings 159 have a function of fixing the binding-wire when winding the binding-wire, which fixes the winding 114 and the stator core 112 via the side wings 159. That is, the side wings 159 and the winding 114 can be tightly assembled together after winding the binding wire, so that the matching size of the protecting device 120 and the stator 110 can be ensured, and the use requirement of connecting the protecting device 120 and the outgoing wire 116 of the winding 114 can be met.

In addition, since the side wings 159 extend along the circumferential direction of the motor 100, the contact area and contact angle between the side wings 159 and the winding 114 are increased, which is beneficial to improving the stability and reliability of the assembly of the connection structure 140 and the stator 110.

Example 7:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 7 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and an insulator, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connector 144 includes a first connection portion 148; a receiving area is formed between the end of the stator core 112 and the winding 114, and the first connection portion 148 can be inserted into the receiving area.

Further, as shown in fig. 2, the first connector 144 includes a flap 159.

In detail, the first connector 144 includes a first connector 148 and a side flap 159. When the connection structure 140 is assembled, the first connection portion 148 is inserted into the receiving area between the end of the stator core 112 and the winding 114. The first connecting portion 148 serves to pre-fix the connecting structure 140 and the stator 110, and then, the binding-wire is wound such that the binding-wire passes through the side wings 159 to firmly fix the connecting structure 140 and the stator 110 together.

Example 8:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 8 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and insulation members, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

Further, the first connection member 144 includes a second connection portion, one of the second connection portion and the stator core 112 is provided with a connection groove, and the other is provided with a protrusion, which can be inserted into the connection groove.

Further, the first connector 144 includes a flap 159.

In detail, the first connector 144 includes a second connector provided with a protrusion and a side wing 159, and the stator core 112 is provided with a connection groove. When the connection structure 140 is assembled, the protruding portion of the second connection portion is inserted into the connection groove of the stator core 112. The second connection part has the function of pre-fixing the connection structure 140 and the stator 110, and then, winding the binding-wire such that the binding-wire passes through the side wings 159 to firmly fix the connection structure 140 and the stator 110 together.

Example 9:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of any one of embodiments 6 to 8, embodiment 9 provides a connection structure 140 for an electric machine 100, the electric machine 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, a winding 114 and an insulator, the protection device 120 being connected with an outgoing line 116 of the winding 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connector 144 includes a flap 159.

Further, as shown in fig. 4, 5 and 6, the side wing 159 is provided with at least one tooth 164, and the tooth 164 is used to fix the binding-wire.

In detail, the side wing 159 is provided with at least one tooth 164, and the tooth 164 has a function of fixing the binding-wire. It will be appreciated that the binding-wire is snapped onto the teeth 164 as it passes around the shoulder 159. And it is by the action of the teeth 164 that the binding wire is able to bind the flanks 159 together with the stator core 112 and the windings 114.

Specifically, a side of the side 159 facing away from the center of the motor 100 is provided with the teeth 164, and/or a side of the side 159 facing toward the first connecting portion 148 is provided with the teeth 164.

Further, when the number of the teeth 164 is plural, the plurality of teeth 164 are arranged at intervals in the circumferential direction of the winding 114.

The number of the teeth 164 is multiple, and the distribution positions of the teeth 164 are reasonably set, so that the teeth 164 are arranged at intervals along the circumferential direction of the winding 114, and the arrangement can be matched with the teeth of the stator 110 of the stator core 112, so that the effectiveness and feasibility of fixing the binding wire by the teeth 164 can be ensured, and the stability of fixing the winding 114 and the stator core 112 by the binding wire can be ensured.

Example 10:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of any one of embodiments 6 to 8, embodiment 10 provides a connection structure 140 for an electric machine 100, the electric machine 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, a winding 114 and an insulator, the protection device 120 being connected with an outgoing line 116 of the winding 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

The first connector 144 includes a flap 159.

Further, as shown in fig. 4, 5 and 6, the number of the side wings 159 is plural, and the plurality of side wings 159 includes at least a first side wing 160 and a second side wing 162.

Along the circumference of the winding 114, the body portion 142 is located between the first side wing 160 and the second side wing 162.

In detail, the number of the side wings 159 is plural, and the kinds of the plurality of side wings 159 are divided, and the plurality of side wings 159 includes at least the first side wings 160 and the second side wings 162.

Along the circumference of the winding 114, the body portion 142 is located between the first side wing 160 and the second side wing 162. That is, the first side flap 160 is attached to a first side of the main body portion 142 and the second side flap 162 is attached to a second side of the main body portion 142. The first side and the second side of the body portion 142 are disposed correspondingly.

This arrangement increases the contact area and contact angle of the wings 159 with the windings 114, which is advantageous for improving the robustness and reliability of the assembly of the connection structure 140 with the stator 110.

Further, the side wings 159 are fitted to the outer peripheral wall of the winding 114.

Wherein, the matching structure of the side wings 159 and the windings 114 is further defined, specifically, the side wings 159 are attached to the peripheral wall of the windings 114, so that the matching gap between the side wings 159 and the windings 114 is reduced, the difficulty of binding the connecting structure 140 and the windings 114 by the subsequent binding rope is reduced, and structural support is provided for effectively assembling the connecting structure 140 and the stator 110.

Example 11:

as shown in fig. 1, 2, 4, 5, 6 and 7, on the basis of embodiment 1, embodiment 11 provides a connection structure 140 for a motor 100, the motor 100 including a stator 110 and a protection device 120, the stator 110 including a stator core 112, windings 114 and insulation members, the protection device 120 being connected with the lead wires 116 of the windings 114, the connection structure 140 including a main body portion 142, a first connection member 144 and a second connection member 146.

The main body 142 is located on the peripheral side of the winding 114.

Further, as shown in fig. 6, the second connector 146 extends from an end of the main body portion 142 in the axial direction of the motor 100.

In detail, a mating structure of the second connector 146 and the body portion 142 is defined, specifically, the second connector 146 is connected with an end portion of the body portion 142, and the second connector 146 extends from the end portion of the body portion 142 in the axial direction of the motor 100. The second connector 146 is removably coupled to the protective device 120.

Further, as shown in fig. 6, a clamping protrusion 166 is disposed on a peripheral sidewall of the second connecting member 146, and the clamping protrusion 166 is used for fixing the protection device 120.

Wherein, through the structure of rationally setting up second connecting piece 146 for the week lateral wall of second connecting piece 146 is equipped with joint lug 166. In this way, when the protection device 120 is assembled, the protection device 120 can be clamped at the clamping projection 166 to limit the protection device 120 in the axial direction of the motor 100, so that the protection device 120 cannot be separated from the connection structure 140. The stability and reliability of the assembly of the connection structure 140 and the protection device 120 can be ensured.

It will be appreciated that the engagement projection 166, the end of the body portion 142 and the side wall of the second connector 146 define a mounting slot therebetween, and a portion of the protection device 120 is disposed in the mounting slot.

Specifically, the clamping projection 166 has an annular structure.

Specifically, the number of the clamping protrusions 166 is plural, and the plurality of clamping protrusions 166 are arranged at intervals along the circumferential direction of the motor 100.

Specifically, at least one of the second connector 146 and the protective device 120 is an elastic member.

Example 12:

as shown in fig. 1 and 2, an embodiment of the second aspect of the present invention proposes an electric machine 100, the electric machine 100 comprising a stator 110, a protection device 120 and a connection structure 140 of any of the embodiments of the first aspect.

The stator 110 includes windings 114, and the protection device 120 is connected to the lead wires 116 of the windings 114.

The first connector 144 is connected to the stator 110, and the second connector 146 is connected to the protector 120.

The connection structure 140 includes a main body portion 142, a first connecting member 144 and a second connecting member 146, wherein the first connecting member 144 and the second connecting member 146 are disposed on the main body portion 142, that is, the main body portion 142 has the function of supporting and fixing the first connecting member 144 and the second connecting member 146.

As shown in fig. 7, the protection device 120 is provided with a connection hole 122.

The second connecting piece 146 is disposed through the connecting hole 122, and a portion of the protection device 120 is disposed between the main body 142 and the engaging protrusion 166 of the second connecting piece 146.

Wherein, through reasonable cooperation structure that sets up protection device 120 and second connecting piece 146, protection device 120 is equipped with connecting hole 122, and second connecting piece 146 is equipped with joint lug 166.

When the connecting structure 140 and the protection device 120 are assembled, the second connecting member 146 is inserted through the connecting hole 122, and a portion of the protection device 120 is clamped between the main body 142 and the clamping projection 166 of the second connecting member 146. To limit the protection device 120 in the axial direction of the motor 100, the protection device 120 is not separated from the connection structure 140. The stability and reliability of the assembly of the connection structure 140 and the protection device 120 can be ensured.

Further, as shown in fig. 4, 5 and 7, the protection device 120 includes a conductive body 124 and an insulating portion 130.

The conductive body 124 is provided with a conductive portion 126 and a tab 128.

The insulating portion 130 is connected to an outer surface of the conductive body 124.

The conductive portion 126 and the tab 128 each extend beyond the insulating portion 130, and the tab 128 connects the conductive portion 126 and the outlet 116.

In detail, the protection device 120 includes a conductive body 124 and an insulating part 130. An insulating portion 130 is connected to the outer surface of the conductive body 124, the insulating portion 130 having the function of being electrically isolated to protect the conductive body 124.

In addition, the conductive portion 126 and the tab 128 each extend out of the insulating portion 130, the tab 128 connects to the conductive portion 126, and the tab 128 connects to the outlet 116 of the winding 114. That is, tab 128 is electrically connected to lead-out wire 116 through conductive portion 126.

Example 13:

an embodiment of a third aspect of the present invention proposes a compressor comprising: the motor 100 as in any of the embodiments of the second aspect.

In detail, the compressor includes a motor 100. The motor 100 includes a connection structure 140.

Example 14:

an embodiment of a fourth aspect of the present invention proposes a refrigeration apparatus comprising: the connection structure 140 as in any of the embodiments of the first aspect; or an electric machine 100 as in any of the embodiments of the second aspect; or a compressor as in the third aspect.

The refrigeration device includes one of the connection structure 140, the motor 100, and the compressor.

Example 15:

the connection structure 140 includes a first connector 144 and a second connector 146, the first connector 144 including a first connector 148 and a side flap 159. Is secured to the windings 114 of the motor 100 by the side wings 159 and the first connection 148 interposed between the ends of the stator core 112 and the windings 114.

The distance from the side of the side 159 facing the center of the motor 100 to the center of the motor 100 is equal to the distance from the center of the motor 100 to the outer peripheral wall of the winding 114.

The side wings 159 are provided with teeth 164, and the number of the teeth 164 is 1 or more and 3 or less.

In the radial direction of the motor 100, the length L1 of the first connection portion 148, the maximum distance L2 from the center of the motor 100 to the outer peripheral wall of the winding 114, and the minimum distance L3 from the center of the motor 100 to the outer surface of the stator 110 teeth of the stator core 112 satisfy: l1 is more than 0 and less than L2-L3.

The first connection 148 includes a first connection section 150 and a second connection section 152, the first connection section 150 being located between the center of the motor 100 and the second connection section 152.

Along the circumferential direction of the motor 100, the width D1 of the second connecting section 152, the width D2 of the teeth of the stator 110 of the stator core 112 satisfy: 0 < D1 < D2.

The first connecting member 144 further includes a mating member 154, the mating member 154 is connected to the first connecting section 150, the mating member 154 protrudes from an outer surface of the second connecting section 152 along a circumferential direction of the motor 100, and the mating member 154 is used for slot insulation of the limiting insulating member.

The peripheral side wall of the second connecting member 146 is provided with a clamping projection 166. The clamping projection 166 is used for fixing the protection device 120.

The protection device 120 is provided with a connecting hole 122, the second connecting piece 146 is arranged through the connecting hole 122, and a part of the protection device 120 is clamped between the main body 142 and the clamping convex block 166 of the second connecting piece 146.

The size of the connection hole 122 is adapted to the size of the portion of the second connector 146 located between the ends of the body portion 142, such as the snap tab 166.

The protection device 120 includes tabs 128, the tabs 128 being cooperatively coupled with the lead wires 116 of the windings 114.

The protection device 120 includes an insulating portion 130 and a conductive body 124, the insulating portion 130 including a glue shell, and the conductive body 124 including a metal shell. The insulating portion 130 has electrical isolation to protect the conductive body 124 of the device 120.

The protective device 120 further includes a conductive portion 126, the conductive portion 126 including a cylindrical metal rod welded to the tab 128 through a circular hole in the housing such that the electrical portion of the protective device 120 is secured to the housing.

Specifically, the rubber shell is a PBT (polybutylece terephthalate, polybutylene terephthalate) rubber shell.

In the present invention, the term "plurality" means two or more, unless explicitly defined 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 connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. 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 description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 do not necessarily refer 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.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure for a motor, characterized in that, the motor includes stator and protection device, the stator includes stator core, winding and insulating part, protection device with the lead-out wire of winding is connected, connection structure includes:

A main body portion located on a peripheral side of the winding;

the first connecting piece is arranged on the main body part and is used for connecting the stator;

the second connecting piece is arranged on the main body part and is used for connecting the protection device.

2. The connection according to claim 1, wherein,

the first connecting piece comprises a first connecting part;

an accommodating area is formed between the end part of the stator core and the winding, and the first connecting part can be inserted into the accommodating area.

3. The connection structure according to claim 2, wherein,

along the radial direction of the motor, the length L1 of the first connection portion, the maximum distance L2 from the center of the motor to the outer peripheral wall of the winding, and the minimum distance L3 from the center of the motor to the outer surface of the stator teeth of the stator core satisfy: l1 is more than 0 and less than L2-L3.

4. The connection structure according to claim 2, wherein,

the first connecting part comprises a first connecting section and a second connecting section, and the first connecting section is positioned between the center of the motor and the second connecting section;

the first connecting piece further comprises a matching piece, the matching piece is connected with the first connecting section, and the matching piece protrudes out of the outer surface of the second connecting section along the circumferential direction of the motor;

Wherein the matching piece is used for limiting the slot insulation of the insulating piece.

5. The connection structure of claim 4, wherein the mating element comprises:

a first mating portion;

and the second matching part is positioned between the first matching part and the second matching part along the circumferential direction of the motor.

6. The connecting structure according to claim 4, wherein,

along the circumference of the motor, the width D1 of the second connecting section and the width D2 of the stator teeth of the stator core satisfy: 0 < D1 < D2.

7. The connection according to claim 1, wherein,

the first connecting piece comprises a second connecting part, one of the second connecting part and the stator core is provided with a connecting groove, the other one is provided with a convex part, and the convex part can be inserted into the connecting groove.

8. The connection structure according to claim 1, wherein the first connection member includes:

and the side wings extend from the main body part along the circumferential direction of the motor, the side wings are positioned on the circumferential side of the winding, and the side wings are used for fixing binding wires of the winding.

9. The connection structure according to claim 8, wherein,

The side wings are provided with at least one convex tooth which is used for fixing the binding wire.

10. The connection according to claim 9, wherein,

when the number of the teeth is plural, the plural teeth are arranged at intervals in the circumferential direction of the winding.

11. The connection structure according to claim 8, wherein,

the number of the side wings is a plurality, and the plurality of the side wings at least comprises a first side wing and a second side wing;

along the circumference of the winding, a body portion is located between the first flank and the second flank.

12. The connection structure according to claim 8, wherein,

the side wings are attached to the outer peripheral wall of the winding.

13. The connection according to claim 1, wherein,

the second connecting member extends from an end of the main body portion in an axial direction of the motor.

14. The connection according to claim 13, wherein,

the periphery side wall of the second connecting piece is provided with a clamping lug, and the clamping lug is used for fixing the protection device.

15. An electric machine, comprising:

a stator including windings;

the protection device is connected with the outgoing line of the winding;

The connection structure according to any one of claims 1 to 14, wherein the first connection member is connected to the stator, and the second connection member is connected to the protection device.

16. The motor of claim 15, wherein the motor is configured to control the motor,

the protection device is provided with a connecting hole, the second connecting piece is arranged in the connecting hole in a penetrating mode, and a part of the protection device is clamped between the main body part and the clamping convex block of the second connecting piece.

17. The electric machine of claim 15, wherein the protection device comprises:

a conductive body provided with a conductive portion and a tab;

and the insulating part is connected with the outer surface of the conductive main body, the conductive part and the fins extend out of the insulating part, and the fins are connected with the conductive part and the outgoing line.

18. A compressor, comprising:

an electrical machine as claimed in any one of claims 15 to 17.

19. A refrigeration appliance, comprising:

the connecting structure of any one of claims 1 to 14; or (b)

An electrical machine as claimed in any one of claims 15 to 17; or (b)

The compressor of claim 18.