Pin, motor and appliance

Abstract

The utility model provides a kind of pin, motor and electrical appliance.The pin is used to connect magnet wire and cable, pin includes body, body includes support part, first clamping part, second clamping part and connecting part;First clamping part is connected with support part;Second clamping part is connected with first clamping part, and second clamping part and first clamping part are used to clamp magnet wire;Connecting part is connected with support part, for connecting cable;Wherein, the side of first clamping part and second clamping part opposite is provided with multiple protrusions, the side of first clamping part and second clamping part opposite is provided with recess, recess is recessed relative to the surface of first clamping part and / or second clamping part, multiple protrusions protrude from the surface of first clamping part and / or second clamping part, multiple protrusions are arranged at intervals along the extension direction of magnet wire, and multiple protrusions are respectively arranged on the two sides of recess.By protrusion, magnet wire is clamped and fixed, reduce the probability that magnet wire separates from first clamping part and second clamping part.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, to a pin, a motor, and an electrical appliance. Background Technology

[0002] Currently, in related technologies, electromagnetic wire is wound around the stator core of a motor or compressor, and a pin is provided at the axial end of the stator core. The pin includes a welding part, which is welded to the electromagnetic wire, thereby achieving the connection and fixation of the pin and the electromagnetic wire. When welding the electromagnetic wire and the pin, the welding process is relatively complex because the electromagnetic wire needs to be fixed to the welding part with solder first, and then the electromagnetic wire and the welding part are welded together. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this utility model proposes a pin.

[0005] The second aspect of this utility model proposes an electric motor.

[0006] The third aspect of this utility model proposes an electrical appliance.

[0007] In view of the above, the first aspect of the present invention provides a pin for connecting an electromagnetic wire and a cable. The pin includes a body, which includes a support portion, a first clamping portion, a second clamping portion, and a connecting portion. The first clamping portion is connected to the support portion. The second clamping portion is connected to the first clamping portion, and the second clamping portion and the first clamping portion are used to clamp the electromagnetic wire. The connecting portion is connected to the support portion and is used to connect the cable. A plurality of protrusions are provided on the opposite side of the first clamping portion and the second clamping portion, and a groove is provided on the opposite side of the first clamping portion and the second clamping portion. The groove is recessed relative to the surface of the first clamping portion and / or the second clamping portion. The plurality of protrusions protrude from the surface of the first clamping portion and / or the second clamping portion. The plurality of protrusions are arranged at intervals along the extension direction of the electromagnetic wire, and the plurality of protrusions are respectively provided on both sides of the groove.

[0008] The pin provided in this application includes a body, which includes a support portion for supporting the pin, thereby enabling the pin to be installed and fixed. The body also includes a first clamping portion and a second clamping portion. The first clamping portion is connected to the support portion, and the second clamping portion is connected to the first clamping portion. The second and first clamping portions are used to clamp the electromagnetic wire, thereby enabling the electromagnetic wire to connect to the pin and improving the reliability of the connection between the electromagnetic wire and the pin. The body also includes a connecting portion connected to the support portion for connecting a cable, thereby allowing the electromagnetic wire to be electrically connected to the cable through the pin. Multiple protrusions are provided on the opposite side of the first clamping part and the second clamping part, and a groove is provided on the opposite side of the first clamping part and the second clamping part. The multiple protrusions are arranged along the extension direction of the electromagnetic wire and are respectively provided on both sides of the groove. When welding the first clamping part, the second clamping part and the electromagnetic wire, the electromagnetic wire can be placed between the first clamping part and the second clamping part, and the first clamping part and the second clamping part can be pressed together. The protrusions provided on the first clamping part and / or the second clamping part can clamp and fix the electromagnetic wire, so that the electromagnetic wire does not need to be fixed with solder before welding to the pin, thereby simplifying the welding process of the electromagnetic wire and the pin, reducing the welding difficulty of the electromagnetic wire and the pin, and improving the convenience of welding the electromagnetic wire and the pin. The groove can break the electromagnetic wire, so that the first clamping part and / or the second clamping part can penetrate the insulation layer of the electromagnetic wire and make an electrical connection with the fiber core, thereby reducing the probability of open circuit or loose connection between the electromagnetic wire and the pin and improving the reliability of conductivity between the pin and the electromagnetic wire.

[0009] The electromagnetic wire is clamped and fixed by protrusions provided on the first clamping part and / or the second clamping part, which avoids the electromagnetic wire from loosening during welding due to the gap between the first clamping part and the second clamping part, reduces the probability of the electromagnetic wire detaching from the first clamping part and the second clamping part, improves the stability of the electromagnetic wire relative to the first clamping part and the second clamping part, and thus improves the reliability of the fixation between the pin and the electromagnetic wire.

[0010] The electromagnetic wire is clamped and fixed by the protrusions provided on the first clamping part and / or the second clamping part, which reduces the contact area between the pin and the electromagnetic wire, thereby increasing the pressure applied by the pin to the electromagnetic wire. This further reduces the probability of the electromagnetic wire detaching from the first clamping part and the second clamping part, improves the stability of the electromagnetic wire relative to the first clamping part and the second clamping part, and thus improves the reliability of the fixation between the pin and the electromagnetic wire.

[0011] When the stator assembly is injection molded, multiple protrusions are respectively disposed on both sides of the groove, and the multiple protrusions protrude from the surface of the first clamping part and / or the second clamping part. The multiple protrusions can prevent the injection molding material from entering between the first clamping part and the second clamping part, reduce the probability that the injection molding material blocks the electromagnetic wire from the first clamping part, and reduce the probability that the injection molding material blocks the electromagnetic wire from the second clamping part, thereby improving the reliability of the connection between the electromagnetic wire and the first clamping part, and the reliability of the connection between the electromagnetic wire and the second clamping part.

[0012] The pin provided by this utility model positions the electromagnetic wire by a protrusion before welding the electromagnetic wire, so that the welding of the electromagnetic wire can be done by resistance welding, eliminating the need for solder, improving welding quality and increasing production line efficiency.

[0013] Furthermore, the main body is a sheet metal structure, formed by stamping and bending to create a support part, a first clamping part, a second clamping part, and a connecting part. The support part is plate-shaped and has protrusions that limit the pin's position, reducing the probability of the pin falling off the stator assembly frame. The first clamping part is connected to the support part and is arranged at a 90-degree angle relative to it. The first side of the second clamping part is connected to the first side of the first clamping part, and there is an opening between the second side of the second clamping part and the second side of the first clamping part. Before welding the electromagnetic wire, the first clamping part and the second clamping part are set at a certain angle, such as 30 degrees or 45 degrees. When welding the electromagnetic wire, the electromagnetic wire is first inserted between the first clamping part and the second clamping part, extending from the third side of the first clamping part to the fourth side. Then, the first clamping part and the second clamping part are pressed together, making them nearly parallel. Finally, the first clamping part, the second clamping part, and the electromagnetic wire are welded together by resistance welding or laser welding.

[0014] The support section is plate-shaped and can be used as a connector and terminal block. The support section is inserted into the positioning groove of the frame, and the protrusion increases the bonding force between the pin and the frame, ensuring the fit between the pin and the frame.

[0015] The connector is provided with a lead wire through hole for threading cables. The lead wire through hole is for inserting cables, then soldering and fixing them, as well as locking and positioning the plug terminals. The connector is designed to accommodate the insertion and mating of plug terminals.

[0016] The support part, the first clamping part, the second clamping part and the connecting part are an integral structure.

[0017] Furthermore, multiple protrusions can be provided on the side of the first clamping part near the second clamping part, that is, multiple protrusions are provided on the first clamping part, and the multiple protrusions protrude from the surface of the first clamping part near the second clamping part.

[0018] Multiple protrusions can also be provided on the side of the second clamping part near the first clamping part, that is, multiple protrusions are provided on the second clamping part, and the multiple protrusions protrude from the side of the second clamping part near the first clamping part.

[0019] Some of the protrusions can be located on the side of the first clamping part near the second clamping part, and another part of the protrusions can be located on the side of the second clamping part near the first clamping part. That is, both the first clamping part and the second clamping part are provided with protrusions, and the protrusions on the first clamping part and the protrusions on the second clamping part are arranged alternately.

[0020] Furthermore, one of the protrusions is located on the edge of the third side of the first clamping part, and another of the protrusions is located on the edge of the fourth side of the first clamping part. In the extension direction of the electromagnetic wire, the third side and the fourth side of the first clamping part are opposite sides of the first clamping part. When the stator assembly is injection molded, the protrusions located on the third side and the fourth side of the first clamping part prevent the injection molding material from entering between the first clamping part and the second clamping part.

[0021] One of the multiple protrusions is located on the edge of the third side of the second clamping part, and another of the multiple protrusions is located on the edge of the fourth side of the second clamping part. In the extension direction of the electromagnetic wire, the third side and the fourth side of the second clamping part are opposite sides of the second clamping part. When the stator assembly is injection molded, the protrusions located on the third side and the fourth side of the second clamping part prevent the injection material from entering between the first clamping part and the second clamping part.

[0022] Furthermore, the number of protrusions provided on the first clamping part and the second clamping part is an even number.

[0023] Specifically, the electromagnetic wire is enameled wire, which can be aluminum wire or copper wire.

[0024] Specifically, multiple protrusions are arranged at intervals along the extension direction of the electromagnetic wire, and each of the multiple protrusions is arranged perpendicular to the extension direction of the electromagnetic wire.

[0025] In some technical solutions of this utility model, optionally, the protrusions on the first clamping part and the protrusions on the second clamping part are arranged alternately.

[0026] In this technical solution, the protrusions on the first clamping part and the protrusions on the second clamping part are arranged alternately, so that the space occupied by the protrusions on the first clamping part and the protrusions on the second clamping part in the thickness direction of the first clamping part overlaps, thereby reducing the gap between the first clamping part and the second clamping part and reducing the probability of injection molding material entering between the first clamping part and the second clamping part.

[0027] In some technical solutions of this utility model, optionally, the plurality of protrusions include a first protrusion and a second protrusion; the first protrusion is disposed on the side of the first clamping portion near the second clamping portion; the second protrusion is disposed on the side of the second clamping portion near the first clamping portion.

[0028] In this technical solution, the multiple protrusions include a first protrusion and a second protrusion. The first protrusion is disposed on the first clamping part, and the second protrusion is disposed on the second clamping part, so that the first protrusion and the second protrusion can clamp the electromagnetic wire at the same time, further improving the reliability of the first protrusion and the second protrusion in fixing the electromagnetic wire, thereby improving the welding reliability between the electromagnetic wire and the pin.

[0029] Specifically, the first protrusion protrudes from the surface of the first clamping part, and the second protrusion protrudes from the surface of the second clamping part.

[0030] In some technical solutions of this utility model, optionally, the number of first protrusions is multiple, the number of second protrusions is multiple, and the multiple first protrusions and multiple second protrusions are arranged alternately.

[0031] In this technical solution, there are multiple first protrusions and multiple second protrusions, which are arranged alternately. After the first clamping part and the second clamping part clamp the electromagnetic wire, the electromagnetic wire extends in a wavy shape, thereby enabling the first clamping part and the second clamping part to clamp a longer electromagnetic wire. When welding the electromagnetic wire and the pin, the probability of the electromagnetic wire detaching from the first clamping part and the second clamping part is further reduced, thereby improving the reliability of the contact between the electromagnetic wire and the pin.

[0032] Furthermore, one of the plurality of first protrusions is disposed on the edge of the third side of the first clamping part, and another of the plurality of first protrusions is disposed on the edge of the fourth side of the first clamping part.

[0033] One of the plurality of second protrusions is disposed on the edge of the third side of the second clamping part, and another of the plurality of second protrusions is disposed on the edge of the fourth side of the second clamping part.

[0034] Furthermore, there may be one first protrusion and multiple second protrusions. Multiple second protrusions are arranged on both sides of the first protrusion. After the first clamping part and the second clamping part clamp the electromagnetic wire, the electromagnetic wire extends in a wavy shape.

[0035] There are multiple first protrusions and one second protrusion. Multiple first protrusions are arranged on both sides of the second protrusion. After the first clamping part and the second clamping part clamp the electromagnetic wire, the electromagnetic wire extends in a wave shape.

[0036] There can be one first protrusion and one second protrusion. The first protrusion and the second protrusion are arranged opposite to each other, and the electromagnetic wire is clamped between the first protrusion and the second protrusion.

[0037] Furthermore, the number of the first protrusion is the same as the number of the second protrusion.

[0038] In some technical solutions of this utility model, optionally, the groove includes a first groove and a second groove; the first groove is disposed on the side of the first clamping part near the second clamping part, and the first groove is recessed relative to the surface of the first clamping part; the second groove is disposed on the side of the second clamping part near the first clamping part, and the second groove is recessed relative to the surface of the second clamping part.

[0039] In this technical solution, the groove includes a first groove and a second groove. The first groove is disposed on the side of the first clamping part near the second clamping part, and the second groove is disposed on the side of the second clamping part near the first clamping part. When the first clamping part and the second clamping part clamp the electromagnetic wire between them, the area of ​​the electromagnetic wire opposite to the surface of the first clamping part and the second clamping part is squeezed and deformed, while the area of ​​the electromagnetic wire opposite to the groove is not squeezed and does not deform. A cross section appears between the deformed area and the undeformed area on the electromagnetic wire, thereby enabling the first clamping part and the second clamping part to break through the insulation layer on the surface of the electromagnetic wire. The first clamping part and the second clamping part can form an electrical connection with the electromagnetic wire, thereby reducing the probability that the first clamping part and the second clamping part fail to make sufficient contact with the electromagnetic wire and improving the reliability of electrical conductivity between the first clamping part, the second clamping part and the electromagnetic wire.

[0040] Furthermore, the groove extends from the first side of the first clamping portion to the second side of the first clamping portion, and then extends from the second side of the second clamping portion back to the first side of the second clamping portion. The first side of the first clamping portion is the side where the first clamping portion is not connected to the second clamping portion, and the second side of the first clamping portion is the side where the first clamping portion is connected to the second clamping portion. Similarly, the first side of the second clamping portion is the side where the second clamping portion is not connected to the first clamping portion, and the second side of the second clamping portion is the side where the second clamping portion is connected to the first clamping portion.

[0041] Furthermore, the first and second slots are arranged in a coplanar manner.

[0042] Optionally, in some technical solutions of this utility model, the first groove and the second groove are arranged opposite to each other.

[0043] In this technical solution, the first slot and the second slot are arranged opposite to each other, so that the first slot and the second slot can break the electromagnetic wire at the same position, thereby improving the wire breaking effect of the first slot and the second slot, further reducing the probability that the first clamping part and the second clamping part fail to make sufficient contact with the electromagnetic wire, and improving the reliability of the electrical conductivity between the first clamping part, the second clamping part and the electromagnetic wire.

[0044] Furthermore, there can be multiple first slots, arranged along the extension direction of the electromagnetic wire. There can also be multiple second slots, arranged along the extension direction of the electromagnetic wire. The multiple second slots can be arranged opposite to the multiple first slots, or they can be arranged alternately with each other.

[0045] In some technical solutions of this utility model, optionally, the height of the protrusion is the first height, the thickness of the first clamping part or the thickness of the second clamping part is the first thickness, and the ratio of the first height to the first thickness is greater than or equal to 0.12 and less than or equal to 0.2.

[0046] In this technical solution, the ratio of the height of the protrusion to the thickness of the first clamping part is greater than or equal to 0.12, so as to avoid insufficient clamping force of the first clamping part and the second clamping part on the electromagnetic wire due to the height of the protrusion being too low, thereby improving the stability of the first clamping part and the second clamping part in clamping the electromagnetic wire. The ratio of the height of the protrusion to the thickness of the first clamping part is less than or equal to 0.2. This avoids excessive gaps between the first and second clamping parts due to excessive protrusion height, thereby reducing the probability of excessive injection molding material between the first and second clamping parts due to excessive gaps. This further reduces the probability of injection molding material blocking the electromagnetic wire from the first and second clamping parts, improving the reliability of the connection between the electromagnetic wire and the first and second clamping parts. Furthermore, the ratio of the height of the protrusion to the thickness of the first clamping part being less than or equal to 0.2 also prevents the first and second clamping parts from being unable to be arranged in parallel due to excessive protrusion height, thereby reducing the gap between the first and second sides of the first and second clamping parts and the second side of the second clamping part.

[0047] The ratio of the height of the protrusion to the thickness of the second clamping part is greater than or equal to 0.12, so as to avoid insufficient clamping force of the first clamping part and the second clamping part on the electromagnetic wire due to the height of the protrusion being too low, thereby improving the stability of the first clamping part and the second clamping part in clamping the electromagnetic wire. The ratio of the height of the protrusion to the thickness of the second clamping part is less than or equal to 0.2. This avoids excessive gaps between the first and second clamping parts due to excessive protrusion height, thereby reducing the probability of excessive injection molding material between the first and second clamping parts due to excessive gaps. This further reduces the probability of injection molding material blocking the electromagnetic wire from the first and second clamping parts, improving the reliability of the connection between the electromagnetic wire and the first and second clamping parts. Furthermore, the ratio of the height of the protrusion to the thickness of the second clamping part being less than or equal to 0.2 also prevents the first and second clamping parts from being unable to be arranged in parallel due to excessive protrusion height, thereby reducing the gap between the first and second sides of the first and second clamping parts and the second side of the second clamping part.

[0048] Specifically, the ratio of the height of the protrusion to the thickness of the first clamping part is greater than or equal to 0.12 and less than or equal to 0.2, so that the pin can be compatible with electromagnetic wires with a diameter of 0.21 mm to 0.39 mm.

[0049] Specifically, the ratio of the height of the protrusion to the thickness of the second clamping part is 0.12.

[0050] The ratio of the height of the protrusion to the thickness of the second clamping part is 0.15.

[0051] The ratio of the height of the protrusion to the thickness of the second clamping part is 0.18.

[0052] The ratio of the height of the protrusion to the thickness of the second clamping part is 0.2.

[0053] In some technical solutions of this utility model, optionally, the depth of the groove is a first depth, the thickness of the first clamping part or the thickness of the second clamping part is a first thickness, and the ratio of the first depth to the first thickness is greater than or equal to 0.12 and less than or equal to 0.2.

[0054] In this technical solution, the ratio of the groove depth to the thickness of the first clamping part is greater than or equal to 0.12. This avoids poor wire-breaking effect due to an excessively shallow groove depth, improving the contact yield between the electromagnetic wire and the first clamping part, and thus enhancing the conductivity stability of the pin during use. The ratio of the groove depth to the thickness of the first clamping part is less than or equal to 0.2. This avoids the probability of injection molding material entering between the first and second clamping parts through the groove opening due to an excessively deep groove, further improving the tightness and reliability of the contact between the electromagnetic wire and the first clamping part. Furthermore, the ratio of the groove depth to the thickness of the first clamping part is less than or equal to 0.2, preventing damage to the structural strength of the first clamping part due to an excessively deep groove, and improving the stability of the pin during operation.

[0055] The ratio of the groove depth to the thickness of the second clamping part is greater than or equal to 0.12. This avoids poor wire breaking effect due to an insufficiently shallow groove depth, improving the contact yield between the electromagnetic wire and the second clamping part, and thus enhancing the conductivity stability of the pin during use. The ratio of the groove depth to the thickness of the second clamping part is less than or equal to 0.2. This avoids the probability of injection molding material entering between the first and second clamping parts through the groove opening due to an excessively deep groove, further improving the tightness and reliability of the contact between the electromagnetic wire and the second clamping part. Furthermore, the ratio of the groove depth to the thickness of the second clamping part is less than or equal to 0.2 to prevent damage to the structural strength of the second clamping part due to an excessively deep groove, thus improving the stability of the pin during operation.

[0056] Specifically, the ratio of the depth of the groove to the thickness of the first clamping part is greater than or equal to 0.12 and less than or equal to 0.2, so that the pin can be compatible with electromagnetic wires with a diameter of 0.21 mm to 0.39 mm.

[0057] Specifically, the ratio of the depth of the groove to the thickness of the first clamping part is 0.12.

[0058] The ratio of the depth of the groove to the thickness of the first clamping part is 0.15.

[0059] The ratio of the depth of the groove to the thickness of the first clamping part is 0.18.

[0060] The ratio of the depth of the groove to the thickness of the first clamping part is 0.2.

[0061] In some technical solutions of this utility model, the pin may optionally include a nickel coating and a tin coating; the nickel coating is applied to at least a portion of the surface of the body; the tin coating is applied to the outside of the nickel coating.

[0062] In this technical solution, the nickel coating can reduce the potential difference between the aluminum enameled wire and the copper pin, and improve electro-corrosion; the tin coating can protect the nickel coating from oxidation, and the tin coating makes the pin compatible with laser welding, which helps tin wetting and facilitates soldering.

[0063] Specifically, the nickel coating is applied to a portion of the body surface, or the nickel coating is applied to the entire body surface.

[0064] Optionally, in some technical solutions of this utility model, rounded corners or chamfers are provided on both sides of the protrusion in the extension direction of the electromagnetic wire.

[0065] In this technical solution, rounded or chamfered corners are provided on both sides of the protrusion in the extension direction of the electromagnetic wire to reduce the probability of the protrusion breaking the electromagnetic wire and further improve the stability of the pin during operation.

[0066] Furthermore, the edges of the support part, the first clamping part, the second clamping part, and the connecting part are all provided with rounded corners. The rounded corners prevent the burrs on the end face of the pin from damaging the electromagnetic wire and reduce the probability of the electromagnetic wire breaking or other defects.

[0067] Optionally, in some technical solutions of this utility model, right angles or sharp angles are provided on both sides of the groove in the extension direction of the electromagnetic wire.

[0068] In this technical solution, right angles or sharp corners are provided on both sides of the groove in the extension direction of the electromagnetic wire, which can improve the wire breaking ability of the groove, thereby improving the contact effect between the electromagnetic wire and the first clamping part, and improving the contact effect between the electromagnetic wire and the second clamping part.

[0069] The second aspect of this utility model provides a motor that includes a pin as described in any of the above technical solutions, and thus the motor has all the beneficial effects of the pin as described in any of the above technical solutions.

[0070] Specifically, the motor includes a stator assembly, which includes a housing, a stator core, windings, multiple frames, and multiple pins. The stator core is disposed inside the housing, the windings are wound around the stator teeth of the stator core, the multiple frames are disposed on both sides of the stator core, and the pins are disposed on the frames.

[0071] The third aspect of this utility model provides an electrical appliance that includes a motor as described in any of the above technical solutions, and thus the electrical appliance possesses all the beneficial effects of a motor as described in any of the above technical solutions.

[0072] Specifically, the electrical appliance may be an air conditioner, and the motor of the air conditioner includes pins as described in any of the above technical solutions.

[0073] The appliance may be a refrigerator, and the refrigerator's motor includes pins as described in any of the above technical solutions.

[0074] The electrical appliance may be a vacuum cleaner, and the motor of the vacuum cleaner includes pins as described in any of the above technical solutions.

[0075] The electrical appliance can be a range hood, and the motor of the range hood includes pins as described in any of the above technical solutions.

[0076] Electrical appliances can include air purifiers, water purifiers, washing machines, and dishwashers.

[0077] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0078] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0079] Figure 1 This is one of the structural schematic diagrams of a pin according to an embodiment of the present invention;

[0080] Figure 2 This is a second schematic diagram of the structure of the insert according to an embodiment of the present invention;

[0081] Figure 3 This is a third schematic diagram of the structure of a pin according to an embodiment of the present invention;

[0082] Figure 4 This is one of the structural schematic diagrams of the first clamping part according to an embodiment of the present invention;

[0083] Figure 5 This is a partial structural diagram of a pin according to an embodiment of the present invention;

[0084] Figure 6 This is a second schematic diagram of the structure of the first clamping part according to an embodiment of the present invention;

[0085] Figure 7 This is a schematic diagram of the stator assembly according to an embodiment of the present invention.

[0086] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0087] 100 Pin, 110 Body, 120 Support, 122 Protrusion, 130 First Clamping Part, 140 Second Clamping Part, 150 Connecting Part, 152 Lead Wire Through Hole, 160 Protrusion, 162 First Protrusion, 164 Second Protrusion, 166 Rounded Corner, 168 Chamfer, 170 Groove, 172 First Groove, 174 Second Groove, 176 Right Angle, 178 Sharp Corner, 180 Nickel Coating, 190 Tin Coating, 200 Electromagnetic Wire, 300 Cable, 400 Housing, 500 Stator Core, 600 Winding, 700 Frame. Detailed Implementation

[0088] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0089] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0090] The following reference Figures 1 to 7 The present invention describes a pin 100, a motor, and electrical components according to some embodiments of the present invention.

[0091] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a pin 100 is provided for connecting an electromagnetic wire 200 and a cable 300. The pin 100 includes a body 110, which includes a support portion 120, a first clamping portion 130, a second clamping portion 140, and a connecting portion 150. The first clamping portion 130 is connected to the support portion 120; the second clamping portion 140 is connected to the first clamping portion 130, and the second clamping portion 140 and the first clamping portion 130 are used to clamp the electromagnetic wire 200; the connecting portion 150 is connected to the support portion 120. 0 connection, used to connect cable 300; wherein, a plurality of protrusions 160 are provided on the opposite side of the first clamping part 130 and the second clamping part 140, and a groove 170 is provided on the opposite side of the first clamping part 130 and the second clamping part 140, the groove 170 being recessed relative to the surface of the first clamping part 130 and / or the second clamping part 140, and the plurality of protrusions 160 protruding from the surface of the first clamping part 130 and / or the second clamping part 140, the plurality of protrusions 160 being along the extending direction of the electromagnetic wire 200 ( Figure 1 Arranged at intervals (in the direction indicated by the middle arrow A), with multiple protrusions 160 respectively disposed on both sides of the groove 170.

[0092] In this embodiment, the pin 100 includes a body 110, which includes a support portion 120 for supporting the pin 100, thereby enabling the installation and fixation of the pin 100. The body 110 also includes a first clamping portion 130 and a second clamping portion 140. The first clamping portion 130 is connected to the support portion 120, and the second clamping portion 140 is connected to the first clamping portion 130. The second clamping portion 140 and the first clamping portion 130 are used to clamp the electromagnetic wire 200, thereby enabling the connection between the electromagnetic wire 200 and the pin 100 and improving the reliability of the connection. The body 110 also includes a connecting portion 150, which is connected to the support portion 120 for connecting a cable 300, thereby allowing the electromagnetic wire 200 to be electrically connected to the cable 300 through the pin 100. A plurality of protrusions 160 are provided on the opposite side of the first clamping part 130 and the second clamping part 140, and a groove 170 is provided on the opposite side of the first clamping part 130 and the second clamping part 140. The plurality of protrusions 160 are arranged along the extending direction of the electromagnetic wire 200, and the plurality of protrusions 160 are respectively provided on both sides of the groove 170. When welding the first clamping part 130, the second clamping part 140 and the electromagnetic wire 200, the electromagnetic wire 200 can be placed between the first clamping part 130 and the second clamping part 140, and the first clamping part 130 and the second clamping part 140 can be pressed together. The protrusions 160 provided on the first clamping part 130 and / or the second clamping part 140 can be used to... The electromagnetic wire 200 is clamped and fixed, so that the electromagnetic wire 200 and the pin 100 do not need to be fixed with solder before welding, thereby simplifying the welding process between the electromagnetic wire 200 and the pin 100, reducing the welding difficulty between the electromagnetic wire 200 and the pin 100, and improving the convenience of welding between the electromagnetic wire 200 and the pin 100; the groove 170 can break the electromagnetic wire 200, so that the first clamping part 130 and / or the second clamping part 140 can penetrate the insulation layer of the electromagnetic wire 200 and make an electrical connection with the fiber core, thereby reducing the probability of open circuit or loose connection between the electromagnetic wire 200 and the pin 100, and improving the reliability of conductivity between the pin 100 and the electromagnetic wire 200.

[0093] The electromagnetic wire 200 is clamped and fixed by the protrusions 160 provided on the first clamping part 130 and / or the second clamping part 140, so as to avoid the electromagnetic wire 200 from loosening during welding due to the gap between the first clamping part 130 and the second clamping part 140, reduce the probability of the electromagnetic wire 200 detaching from the first clamping part 130 and the second clamping part 140, improve the stability of the electromagnetic wire 200 relative to the first clamping part 130 and the second clamping part 140, and thus improve the reliability of the fixation between the pin 100 and the electromagnetic wire 200.

[0094] The electromagnetic wire 200 is clamped and fixed by the protrusions 160 provided on the first clamping part 130 and / or the second clamping part 140, which reduces the contact area between the pin 100 and the electromagnetic wire 200, thereby increasing the pressure applied by the pin 100 on the electromagnetic wire 200. This further reduces the probability of the electromagnetic wire 200 detaching from the first clamping part 130 and the second clamping part 140, improves the stability of the electromagnetic wire 200 relative to the first clamping part 130 and the second clamping part 140, and thus improves the reliability of the fixation between the pin 100 and the electromagnetic wire 200.

[0095] During the injection molding of the stator assembly, multiple protrusions 160 are respectively disposed on both sides of the groove 170, and the multiple protrusions 160 protrude from the surface of the first clamping part 130 and / or the second clamping part 140. The multiple protrusions 160 can prevent the injection molding material from entering between the first clamping part 130 and the second clamping part 140, thereby reducing the probability that the injection molding material will block the electromagnetic wire 200 from the first clamping part 130 and the second clamping part 140, and thus improving the reliability of the connection between the electromagnetic wire 200 and the first clamping part 130 and the second clamping part 140.

[0096] The pin 100 provided by this utility model positions the electromagnetic wire 200 by protrusion 160 before welding the electromagnetic wire 200, so that the welding of the electromagnetic wire by the pin 100 can be done by resistance welding, eliminating the need for solder, improving welding quality and increasing production line efficiency.

[0097] Furthermore, the body 110 is a sheet metal structure, formed by stamping and bending to include a support portion 120, a first clamping portion 130, a second clamping portion 140, and a connecting portion 150. The support portion 120 is plate-shaped and has a protrusion 122. The protrusion 122 can limit the insertion pin 100, reducing the probability of the insertion pin 100 falling off the frame 700 of the stator assembly. The first clamping portion 130 is connected to the support portion 120 and is arranged at a 90-degree angle relative to the support portion 120. The first side of the second clamping part 140 is connected to the first side of the first clamping part 130. There is an opening between the second side of the second clamping part 140 and the second side of the first clamping part 130. Before the electromagnetic wire 200 is welded, the first clamping part 130 and the second clamping part 140 are set at a certain angle, such as 30 degrees or 45 degrees. When welding the electromagnetic wire 200, the electromagnetic wire 200 is first inserted between the first clamping part 130 and the second clamping part 140. The electromagnetic wire 200 extends from the third side of the first clamping part 130 to the fourth side of the first clamping part 130. Then the first clamping part 130 and the second clamping part 140 are pressed together. The first clamping part 130 and the second clamping part 140 are arranged to be nearly parallel. Then the first clamping part 130, the second clamping part 140 and the electromagnetic wire 200 are welded by resistance welding or laser welding.

[0098] The support portion 120 is plate-shaped and can be used as a connector to connect to the wiring terminal. The support portion 120 is inserted into the positioning groove of the frame 700, and the protrusion 122 increases the bonding force between the pin 100 and the frame 700, ensuring the fit between the pin 100 and the frame 700.

[0099] The connecting part 150 is provided with a lead wire through hole 152, which is used to pass through the cable 300. The lead wire through hole 152 is for inserting the cable 300, then soldering and fixing it, as well as locking and positioning the plug-in terminal. The connecting part 150 is designed to be compatible with the insertion and mating of the plug-in terminal.

[0100] The support part 120, the first clamping part 130, the second clamping part 140 and the connecting part 150 are an integral structure.

[0101] Furthermore, multiple protrusions 160 can be disposed on the side of the first clamping part 130 near the second clamping part 140, that is, multiple protrusions 160 are disposed on the first clamping part 130, and the multiple protrusions 160 protrude from the surface of the first clamping part 130 near the second clamping part 140.

[0102] Multiple protrusions 160 can also be provided on the side of the second clamping part 140 near the first clamping part 130, that is, multiple protrusions 160 are provided on the second clamping part 140, and the multiple protrusions 160 protrude from the side of the second clamping part 140 near the first clamping part 130.

[0103] Some of the protrusions 160 may be located on the side of the first clamping part 130 near the second clamping part 140, and another part of the protrusions 160 may be located on the side of the second clamping part 140 near the first clamping part 130. That is, both the first clamping part 130 and the second clamping part 140 are provided with protrusions 160, and the protrusions 160 on the first clamping part 130 and the protrusions 160 on the second clamping part 140 are arranged alternately.

[0104] Furthermore, one of the plurality of protrusions 160 is disposed on the edge of the third side of the first clamping portion 130, and another of the plurality of protrusions 160 is disposed on the edge of the fourth side of the first clamping portion 130. In the extension direction of the electromagnetic wire 200, the third side and the fourth side of the first clamping portion 130 are opposite sides of the first clamping portion 130. During injection molding of the stator assembly, the protrusions 160 disposed on the third side and the fourth side of the first clamping portion 130 prevent injection molding material from entering between the first clamping portion 130 and the second clamping portion 140.

[0105] One of the plurality of protrusions 160 is disposed on the edge of the third side of the second clamping portion 140, and another of the plurality of protrusions 160 is disposed on the edge of the fourth side of the second clamping portion 140. In the extension direction of the electromagnetic wire 200, the third side and the fourth side of the second clamping portion 140 are opposite sides of the second clamping portion 140. When the stator assembly is injection molded, the protrusions 160 disposed on the third side and the fourth side of the second clamping portion 140 prevent the injection molding material from entering between the first clamping portion 130 and the second clamping portion 140.

[0106] Furthermore, the number of protrusions 160 provided on the first clamping part 130 and the second clamping part 140 is an even number.

[0107] Furthermore, the protrusions 160 and grooves 170 are arranged at intervals, that is, the side wall surface of the protrusion 160 and the inner wall surface of the groove 170 are not coplanar. This allows the protrusion 160 to stably press the electromagnetic wire 200, and also allows the groove 170 to break the wire.

[0108] Specifically, the electromagnetic wire 200 is an enameled wire, which can be an aluminum wire or a copper wire.

[0109] Specifically, a plurality of protrusions 160 are arranged at intervals along the extension direction of the electromagnetic line 200, and each of the plurality of protrusions 160 is arranged perpendicular to the extension direction of the electromagnetic line 200.

[0110] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0111] The protrusions 160 on the first clamping part 130 and the protrusions 160 on the second clamping part 140 are arranged alternately among the multiple protrusions 160.

[0112] In this embodiment, the protrusions 160 on the first clamping portion 130 and the protrusions 160 on the second clamping portion 140 are arranged alternately, such that the protrusions 160 on the first clamping portion 130 and the protrusions 160 on the second clamping portion 140 occupy space in the thickness direction of the first clamping portion 130, thereby reducing the gap between the first clamping portion 130 and the second clamping portion 140 and reducing the probability of injection molding material entering between the first clamping portion 130 and the second clamping portion 140.

[0113] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0114] like Figure 2 and Figure 3 As shown, the plurality of protrusions 160 include a first protrusion 162 and a second protrusion 164; the first protrusion 162 is disposed on the side of the first clamping portion 130 near the second clamping portion 140; the second protrusion 164 is disposed on the side of the second clamping portion 140 near the first clamping portion 130.

[0115] In this embodiment, the plurality of protrusions 160 include a first protrusion 162 and a second protrusion 164. The first protrusion 162 is disposed on the first clamping part 130, and the second protrusion 164 is disposed on the second clamping part 140, so that the first protrusion 162 and the second protrusion 164 can simultaneously clamp the electromagnetic wire 200, further improving the reliability of the first protrusion 162 and the second protrusion 164 in fixing the electromagnetic wire 200, thereby improving the welding reliability between the electromagnetic wire 200 and the pin 100.

[0116] Specifically, the first protrusion 162 protrudes from the surface of the first clamping part 130 near the second clamping part 140, and the second protrusion 164 protrudes from the surface of the second clamping part 140 near the first clamping part 130.

[0117] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0118] like Figure 1 , Figure 2 and Figure 3 As shown, there are multiple first protrusions 162 and multiple second protrusions 164, with multiple first protrusions 162 and multiple second protrusions 164 arranged alternately.

[0119] In this embodiment, there are multiple first protrusions 162 and multiple second protrusions 164. The multiple first protrusions 162 and multiple second protrusions 164 are arranged alternately. After the first clamping part 130 and the second clamping part 140 clamp the electromagnetic wire 200, the electromagnetic wire 200 extends in a wavy shape, thereby enabling the first clamping part 130 and the second clamping part 140 to clamp a longer electromagnetic wire 200. When welding the electromagnetic wire 200 and the pin 100, the probability of the electromagnetic wire 200 detaching from the first clamping part 130 and the second clamping part 140 is further reduced, thereby improving the reliability of the contact between the electromagnetic wire 200 and the pin 100.

[0120] Furthermore, one of the plurality of first protrusions 162 is disposed on the edge of the third side of the first clamping portion 130, and another of the plurality of first protrusions 162 is disposed on the edge of the fourth side of the first clamping portion 130.

[0121] One of the plurality of second protrusions 164 is disposed on the edge of the third side of the second clamping portion 140, and another of the plurality of second protrusions 164 is disposed on the edge of the fourth side of the second clamping portion 140.

[0122] Furthermore, there may be one first protrusion 162 and multiple second protrusions 164. Multiple second protrusions 164 are arranged on both sides of the first protrusion 162. After the first clamping part 130 and the second clamping part 140 clamp the electromagnetic wire 200, the electromagnetic wire 200 extends in a wave shape.

[0123] There are multiple first protrusions 162 and one second protrusion 164. Multiple first protrusions 162 are arranged on both sides of the second protrusion 164. After the first clamping part 130 and the second clamping part 140 clamp the electromagnetic wire 200, the electromagnetic wire 200 extends in a wave shape.

[0124] There can be one first protrusion 162 and one second protrusion 164. The first protrusion 162 and the second protrusion 164 are arranged opposite to each other, and the electromagnetic wire 200 is clamped between the first protrusion 162 and the second protrusion 164.

[0125] Furthermore, the number of the first protrusions 162 is the same as the number of the second protrusions 164.

[0126] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0127] like Figure 1 , Figure 2 and Figure 3 As shown, the groove 170 includes a first groove 172 and a second groove 174; the first groove 172 is disposed on the side of the first clamping portion 130 near the second clamping portion 140, and the first groove 172 is recessed relative to the surface of the first clamping portion 130; the second groove 174 is disposed on the side of the second clamping portion 140 near the first clamping portion 130, and the second groove 174 is recessed relative to the surface of the second clamping portion 140.

[0128] In this embodiment, the groove 170 includes a first groove 172 and a second groove 174. The first groove 172 is disposed on the side of the first clamping part 130 near the second clamping part 140, and the second groove 174 is disposed on the side of the second clamping part 140 near the first clamping part 130. When the first clamping part 130 and the second clamping part 140 clamp the electromagnetic wire 200 between them, the area of ​​the electromagnetic wire 200 opposite to the surfaces of the first clamping part 130 and the second clamping part 140 is compressed and deformed, while the area of ​​the electromagnetic wire 200 opposite to the groove 170 is not subjected to compression. Extrusion will not cause deformation. The deformed and undeformed areas on the electromagnetic wire 200 will have cross sections, which will allow the first clamping part 130 and the second clamping part 140 to break through the insulation layer on the surface of the electromagnetic wire 200. The first clamping part 130 and the second clamping part 140 can form an electrical connection with the electromagnetic wire 200, thereby reducing the probability that the first clamping part 130 and the second clamping part 140 fail to make sufficient contact with the electromagnetic wire 200 and improving the reliability of electrical conductivity between the first clamping part 130, the second clamping part 140 and the electromagnetic wire 200.

[0129] Furthermore, the groove 170 extends from the first side of the first clamping portion 130 to the second side of the first clamping portion 130, and then extends from the second side of the second clamping portion 140 back to the first side of the second clamping portion 140. The first side of the first clamping portion 130 is the side of the first clamping portion 130 that is not connected to the second clamping portion 140, and the second side of the first clamping portion 130 is the side of the first clamping portion 130 that is connected to the second clamping portion 140. Similarly, the first side of the second clamping portion 140 is the side of the second clamping portion 140 that is not connected to the first clamping portion 130, and the second side of the second clamping portion 140 is the side of the second clamping portion 140 that is connected to the first clamping portion 130.

[0130] Furthermore, the first slot 172 and the second slot 174 are arranged in the same plane.

[0131] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0132] like Figure 1 , Figure 2 and Figure 3 As shown, the first slot 172 and the second slot 174 are arranged opposite to each other.

[0133] In this embodiment, the first groove 172 and the second groove 174 are arranged opposite to each other, so that the first groove 172 and the second groove 174 can break the electromagnetic wire 200 at the same position, thereby improving the wire breaking effect of the first groove 172 and the second groove 174, further reducing the probability that the first clamping part 130 and the second clamping part 140 fail to make sufficient contact with the electromagnetic wire 200, and improving the reliability of the electrical conductivity between the first clamping part 130, the second clamping part 140 and the electromagnetic wire 200.

[0134] Furthermore, there can be multiple first slots 172, arranged along the extension direction of the electromagnetic wire 200. There can also be multiple second slots 174, arranged along the extension direction of the electromagnetic wire 200. The multiple second slots 174 are respectively arranged opposite to the multiple first slots 172, or the multiple second slots 174 are arranged alternately with the multiple first slots 172.

[0135] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0136] like Figure 1 and Figure 4 As shown, the height of the protrusion 160 is the first height h1, the thickness of the first clamping part 130 or the thickness of the second clamping part 140 is the first thickness t, and the ratio of the first height h1 to the first thickness t is greater than or equal to 0.12 and less than or equal to 0.2.

[0137] In this embodiment, the ratio of the height of the protrusion 160 to the thickness of the first clamping portion 130 is greater than or equal to 0.12. This avoids insufficient clamping force between the first clamping portion 130 and the second clamping portion 140 on the electromagnetic wire 200 due to the height of the protrusion 160 being too low, thereby improving the stability of the clamping of the electromagnetic wire 200 by the first clamping portion 130 and the second clamping portion 140. The ratio of the height of the protrusion 160 to the thickness of the first clamping portion 130 is less than or equal to 0.2. This avoids excessive gap between the first clamping portion 130 and the second clamping portion 140 due to the height of the protrusion 160 being too high, thereby reducing the probability of excessive injection molding material between the first clamping portion 130 and the second clamping portion 140 due to excessive gap between them. This reduces the probability of injection molding material blocking the electromagnetic wire 200 from the first clamping portion 130, and also reduces the probability of injection molding material blocking the electromagnetic wire 200. The probability of the electromagnetic wire 200 connecting with the second clamping part 140 is increased, improving the reliability of the connection between the electromagnetic wire 200 and the first clamping part 130, as well as the reliability of the connection between the electromagnetic wire 200 and the second clamping part 140; and the ratio of the height of the protrusion 160 to the thickness of the first clamping part 130 is less than or equal to 0.2, which can also prevent the first clamping part 130 and the second clamping part 140 from not being able to be arranged in parallel due to the excessive height of the protrusion 160, thereby reducing the gap between the first clamping part 130 and the second side and the second side of the second clamping part 140.

[0138] The ratio of the height of the protrusion 160 to the thickness of the second clamping portion 140 is greater than or equal to 0.12. This prevents insufficient clamping force between the first clamping portion 130 and the second clamping portion 140 on the electromagnetic wire 200 due to the height of the protrusion 160 being too low, thereby improving the stability of the clamping of the electromagnetic wire 200 by the first clamping portion 130 and the second clamping portion 140. The ratio of the height of the protrusion 160 to the thickness of the second clamping portion 140 is less than or equal to 0.2. This prevents excessive gap between the first clamping portion 130 and the second clamping portion 140 due to the height of the protrusion 160 being too high. This reduces the probability of excessive injection molding material between the first clamping portion 130 and the second clamping portion 140 due to excessive gap between them, thereby reducing the probability of injection molding material blocking the electromagnetic wire 200 from the first clamping portion 130 and reducing the probability of injection molding material blocking the electromagnetic wire 200. The probability of the electromagnetic wire 200 connecting with the second clamping part 140 is increased, improving the reliability of the connection between the electromagnetic wire 200 and the first clamping part 130, as well as the reliability of the connection between the electromagnetic wire 200 and the second clamping part 140; and the ratio of the height of the protrusion 160 to the thickness of the second clamping part 140 is less than or equal to 0.2, which can also prevent the first clamping part 130 and the second clamping part 140 from being unable to be arranged in parallel due to the excessive height of the protrusion 160, thereby reducing the gap between the first clamping part 130 and the second side and the second side of the second clamping part 140.

[0139] Specifically, the ratio of the height of the protrusion 160 to the thickness of the first clamping portion 130 is greater than or equal to 0.12 and less than or equal to 0.2, so that the pin 100 can be compatible with electromagnetic wires 200 with a wire diameter of 0.21 mm to 0.39 mm.

[0140] Specifically, the height of the protrusion 160 is the first height h1, the thickness of the first clamping part 130 or the thickness of the second clamping part 140 is the first thickness t, and 0.12≤h1 / t≤0.2.

[0141] Specifically, the ratio of the height of the protrusion 160 to the thickness of the second clamping part 140 is 0.12.

[0142] The ratio of the height of the protrusion 160 to the thickness of the second clamping part 140 is 0.15.

[0143] The ratio of the height of the protrusion 160 to the thickness of the second clamping part 140 is 0.18.

[0144] The ratio of the height of the protrusion 160 to the thickness of the second clamping part 140 is 0.2.

[0145] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0146] like Figure 1 and Figure 4 As shown, the depth of the groove 170 is the first depth h2, the thickness of the first clamping part 130 or the thickness of the second clamping part 140 is the first thickness t, and the ratio of the first depth h2 to the first thickness t is greater than or equal to 0.12 and less than or equal to 0.2.

[0147] In this embodiment, the ratio of the depth of the groove 170 to the thickness of the first clamping portion 130 is greater than or equal to 0.12. This avoids a poor wire-breaking effect of the groove 170 on the electromagnetic wire 200 due to excessively shallow groove depth, thereby improving the contact yield between the electromagnetic wire 200 and the first clamping portion 130, and thus improving the conductivity stability of the pin 100 during use. The ratio of the depth of the groove 170 to the thickness of the first clamping portion 130 is less than or equal to 0.2. This avoids the probability of injection molding material entering between the first clamping portion 130 and the second clamping portion 140 through the opening of the groove 170 due to excessively deep groove depth, further improving the tightness and reliability of the contact between the electromagnetic wire 200 and the first clamping portion 130. The ratio of the depth of the groove 170 to the thickness of the first clamping portion 130 is less than or equal to 0.2. This avoids damage to the structural strength of the first clamping portion 130 due to excessively deep groove depth, thus improving the stability of the pin 100 during operation.

[0148] The ratio of the depth of the groove 170 to the thickness of the second clamping portion 140 is greater than or equal to 0.12. This avoids a poor wire-breaking effect of the groove 170 on the electromagnetic wire 200 due to its shallow depth, thus improving the contact yield between the electromagnetic wire 200 and the second clamping portion 140, and consequently improving the conductivity stability of the pin 100 during use. The ratio of the depth of the groove 170 to the thickness of the second clamping portion 140 is less than or equal to 0.2. This avoids the probability of injection molding material entering between the first clamping portion 130 and the second clamping portion 140 through the opening of the groove 170 due to its excessive depth, further improving the tightness and reliability of the contact between the electromagnetic wire 200 and the second clamping portion 140. The ratio of the depth of the groove 170 to the thickness of the second clamping portion 140 is less than or equal to 0.2. This avoids damage to the structural strength of the second clamping portion 140 due to its excessive depth, thus improving the stability of the pin 100 during operation.

[0149] Specifically, the depth of the groove 170 is a first depth h2, the thickness of the first clamping part 130 or the thickness of the second clamping part 140 is a first thickness t, and 0.12≤h2 / t≤0.2.

[0150] Specifically, the ratio of the depth of the groove 170 to the thickness of the first clamping portion 130 is greater than or equal to 0.12 and less than or equal to 0.2, so that the pin 100 can be compatible with electromagnetic wires 200 with a wire diameter of 0.21 mm to 0.39 mm.

[0151] Specifically, the ratio of the depth of the groove 170 to the thickness of the first clamping part 130 is 0.12.

[0152] The ratio of the depth of the groove 170 to the thickness of the first clamping part 130 is 0.15.

[0153] The ratio of the depth of the groove 170 to the thickness of the first clamping part 130 is 0.18.

[0154] The ratio of the depth of the groove 170 to the thickness of the first clamping part 130 is 0.2.

[0155] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0156] like Figure 1 and Figure 5 As shown, the pin 100 also includes a nickel coating 180 and a tin coating 190; the nickel coating 180 is coated on at least a portion of the surface of the body 110; the tin coating 190 is coated on the outer side of the nickel coating 180.

[0157] In this embodiment, the nickel coating 180 can reduce the potential difference between the aluminum enameled wire and the copper pin 100, and improve electro-corrosion; the tin coating 190 can protect the nickel coating 180 from oxidation, and the tin coating 190 makes the pin 100 compatible with laser welding, which helps tin wetting and facilitates soldering.

[0158] Specifically, nickel coating 180 is a nickel metal coating. Tin coating 190 is a tin metal coating.

[0159] Specifically, the nickel coating 180 is applied to a portion of the surface of the body 110, or the nickel coating 180 is applied to the entire surface of the body 110.

[0160] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0161] like Figure 1 , Figure 4 and Figure 6 As shown, in the extension direction of the electromagnetic wire 200, the two sides of the protrusion 160 are provided with rounded corners 166 or chamfers 168.

[0162] In this embodiment, the protrusion 160 has rounded corners 166 or chamfers 168 on both sides in the extension direction of the electromagnetic wire 200, which reduces the probability that the protrusion 160 will break the electromagnetic wire 200 and further improves the stability of the pin 100 during operation.

[0163] Furthermore, the edges of the support portion 120, the first clamping portion 130, the second clamping portion 140, and the connecting portion 150 are all provided with rounded corners. The rounded corners prevent the burrs on the end face of the pin 100 from damaging the electromagnetic wire 200 and reduce the probability of the electromagnetic wire 200 breaking or other defects.

[0164] This embodiment provides a pin 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0165] like Figure 1 , Figure 4 and Figure 6 As shown, in the extension direction of the electromagnetic wire 200, the two sides of the groove 170 are provided with right angles 176 or sharp angles 178.

[0166] In this embodiment, right angles 176 or sharp angles 178 are provided on both sides of the groove 170 in the extension direction of the electromagnetic wire 200, which can improve the wire breaking ability of the groove 170, thereby improving the contact effect between the electromagnetic wire 200 and the first clamping part 130, and improving the contact effect between the electromagnetic wire 200 and the second clamping part 140.

[0167] In one embodiment of the present invention, a motor is provided, including a pin 100 as described in any of the above embodiments, and thus the motor has all the beneficial effects of the pin 100 as described in any of the above embodiments.

[0168] Specifically, such as Figure 7 As shown, the motor includes a stator assembly, which includes a housing 400, a stator core 500, a winding 600, multiple frames 700, and multiple pins 100. The stator core 500 is disposed inside the housing 400, the winding 600 is wound around the stator teeth of the stator core 500, the multiple frames 700 are disposed on both sides of the stator core 500, and the pins 100 are disposed on the frames 700.

[0169] In one embodiment of the present invention, an electrical appliance is provided, including a motor as described in any of the above embodiments, and thus the electrical appliance possesses all the beneficial effects of the motor as described in any of the above embodiments.

[0170] Specifically, the electrical appliance may be an air conditioner, and the motor of the air conditioner includes a pin 100 as described in any of the above embodiments.

[0171] The appliance may be a refrigerator, and the refrigerator's motor includes a pin 100 as described in any of the above embodiments.

[0172] The electrical appliance may be a vacuum cleaner, and the motor of the vacuum cleaner includes a pin 100 as described in any of the above embodiments.

[0173] The electrical appliance may be a range hood, and the motor of the range hood includes a pin 100 as described in any of the above embodiments.

[0174] Electrical appliances can include air purifiers, water purifiers, washing machines, and dishwashers.

[0175] In the claims, description, and accompanying drawings of this utility model, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this utility model. The terms "connect," "install," "fix," etc., should be interpreted broadly. For example, "connect" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood based on the specific circumstances described above.

[0176] In the claims, description, and drawings of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In the claims, description, and drawings of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0177] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pin, characterized in that, The pin is used to connect an electromagnetic wire and a cable, and the pin includes a body, the body comprising: Support section; A first clamping part is connected to the supporting part; A second clamping part is connected to the first clamping part, and the second clamping part and the first clamping part are used to clamp the electromagnetic wire; A connecting part, which is connected to the support part, is used to connect the cable; The first clamping part and the second clamping part are provided with a plurality of protrusions on the opposite side, and the first clamping part and the second clamping part are provided with a groove on the opposite side. The groove is recessed relative to the surface of the first clamping part and / or the second clamping part. The plurality of protrusions protrude from the surface of the first clamping part and / or the second clamping part. The plurality of protrusions are arranged at intervals along the extension direction of the electromagnetic wire. The plurality of protrusions are respectively provided on both sides of the groove.

2. The pin according to claim 1, characterized in that, The protrusions on the first clamping part and the protrusions on the second clamping part are arranged alternately among the plurality of protrusions.

3. The pin according to claim 1, characterized in that, The plurality of protrusions include: The first protrusion is disposed on the side of the first clamping portion near the second clamping portion; The second protrusion is disposed on the side of the second clamping portion near the first clamping portion.

4. The pin according to claim 3, characterized in that, The number of first protrusions is multiple, and the number of second protrusions is multiple, with the multiple first protrusions and the multiple second protrusions arranged alternately.

5. The pin according to claim 1, characterized in that, The groove includes: The first groove is disposed on the side of the first clamping part near the second clamping part, and the first groove is recessed relative to the surface of the first clamping part. The second groove is disposed on the side of the second clamping portion near the first clamping portion, and the second groove is recessed relative to the surface of the second clamping portion.

6. The pin according to claim 5, characterized in that, The first slot is positioned opposite to the second slot.

7. The pin according to claim 1, characterized in that, The height of the protrusion is a first height, the thickness of the first clamping part or the thickness of the second clamping part is a first thickness, and the ratio of the first height to the first thickness is greater than or equal to 0.12 and less than or equal to 0.

2.

8. The pin according to claim 1, characterized in that, The depth of the groove is a first depth, the thickness of the first clamping part or the thickness of the second clamping part is a first thickness, and the ratio of the first depth to the first thickness is greater than or equal to 0.12 and less than or equal to 0.

2.

9. The pin according to claim 1, characterized in that, The pin also includes: A nickel coating is applied to at least a portion of the surface of the body; A tin coating is applied to the outside of the nickel coating.

10. The insert according to any one of claims 1 to 9, characterized in that, In the direction of extension of the electromagnetic wire, the two sides of the protrusion are provided with rounded corners or chamfers.

11. The insert according to any one of claims 1 to 9, characterized in that, In the direction of extension of the electromagnetic wire, the two sides of the groove are provided with right angles or sharp angles.

12. An electric motor, characterized in that, Includes the insert as described in any one of claims 1 to 11.

13. An electrical appliance, characterized in that, Including the motor as described in claim 12.

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