Motor assembly and electric shearing equipment

Abstract

The utility model discloses a motor assembly and electric shearing equipment, the motor assembly comprises a base, a coil and a wiring module, the coil and the wiring module are mounted on the base, and the wiring module comprises a conductive plate, a cable and a cable pressing structure; the conductive plate is fixedly connected to one side, deviating from the coil, of the base and is electrically connected with the leading-out end of the coil; the cable comprises a connecting end and an extending section which are adjacent to each other, the connecting end is coated with welding metal, and the connecting end is welded with the conductive plate; the wire pressing structure comprises a first wire pressing part, and the first wire pressing part is in press fit with the extending section, so that the connecting position of the connecting end and the extending section is located on the side, close to a welding point of the connecting end, of the first wire pressing part. According to the motor assembly provided by the utility model, the joint of the extension section of the cable and the connecting end coated with the welding metal is located at one side, close to the welding point of the connecting end, of the first wire pressing part, so that the extension section and the connecting end are effectively prevented from being repeatedly stressed, and the possibility that the cable is broken is further reduced.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to a motor assembly and an electric shearing device. Background Technology

[0002] Small motors, with their small size, light weight, and high efficiency, are widely used in handheld devices such as electric shearing equipment and handheld power tools. The coil leads of these motors are typically connected to the power supply via cables to ensure continuous and stable operation. However, because motors generate long-term vibrations during operation, the stability of the cable connections is critical.

[0003] In related technologies, to improve the conductivity and solderability of cables, metal surface treatments are typically applied to the copper wire ends, such as tinning, silvering, or plating. However, the copper wires become harder after metal surface treatment. In practical applications, the connection between the metal-coated and uncoated parts is prone to breakage due to the difference in material and rigidity under repeated stress in the long-term vibration environment of the motor, causing the motor to malfunction.

[0004] The above content is only used to assist in understanding the technical solution of the utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] In view of the above problems, this utility model proposes a motor assembly, which aims to solve the technical problem that the connection between the cable of the motor assembly covered with welded metal and the uncovered welded metal is prone to breakage.

[0006] To achieve the above objectives, the motor assembly proposed in this utility model includes a base, a coil mounted on the base, and a wiring module, wherein the wiring module includes a conductive plate, a cable, and a wire clamping structure;

[0007] The conductive plate is fixedly connected to the base on the side opposite to the coil and is electrically connected to the lead-out end of the coil.

[0008] The cable includes adjacent connecting ends and extension sections, the connecting ends are covered with welding metal, and the connecting ends are welded to the conductive plate;

[0009] The pressure wire structure includes a first pressure wire portion, which presses the extension section together so that the connection point between the connecting end and the extension section is located on the side of the first pressure wire portion near the welding point of the connecting end.

[0010] In one embodiment, the pressure wire structure further includes a second pressure wire portion spaced apart from the first pressure wire portion, the connecting end passing through and pressing against the second pressure wire portion, the second pressure wire portion being located between the first pressure wire portion and the welding point, and the extension section passing through and pressing against the second pressure wire portion.

[0011] In one embodiment, the extension is curved between the first pressure line portion and the welding point.

[0012] In one embodiment, the motor assembly further includes a moving component located on the side of the coil away from the base, and the moving component can reciprocate in a preset direction under the electromagnetic action of the coil;

[0013] The second pressure line portion and the first pressure line portion are spaced apart along the first direction; the first direction, the preset direction and the thickness direction of the base are perpendicular to each other.

[0014] In one embodiment, the extension between the first pressure line portion and the second pressure line portion is bent toward one side of the preset direction, and the extension between the second pressure line portion and the connecting end is bent toward the other side of the preset direction.

[0015] In one embodiment, the cable has two wires, and the connection ends of the two cables are spaced apart in the preset direction.

[0016] In one embodiment, the base is provided with two second pressure points spaced apart in the preset direction, the connection ends of the two cables are respectively pressed onto the two second pressure points, and the extensions of the two cables are pressed onto the same first pressure point.

[0017] In one embodiment, the first wire pressing part is provided with a wire pressing hole, and the extension sections of both cables are provided through the wire pressing hole; and / or, the two second wire pressing parts are respectively provided with wire locking grooves, and the connecting ends of the two cables are respectively engaged in the two wire locking grooves.

[0018] In one embodiment, the first wire pressing part is provided with two wire pressing holes, and the extensions of the two cables are respectively inserted into the two wire pressing holes. The first wire pressing part is also provided with a partition plate located between the two wire pressing holes.

[0019] In one embodiment, the wire pressing structure further includes a mounting plate disposed between the conductive plate and the base, wherein the second wire pressing portion and the first wire pressing portion are connected to the surface of the mounting plate opposite to the coil; the conductive plate is fixed to the mounting plate, and the conductive plate has through holes for the second wire pressing portion and the first wire pressing portion to pass through.

[0020] In one embodiment, the motor assembly further includes a motor frame and a conductive adapter plate;

[0021] The base, coil, and wiring module are each provided in twos. The two bases are elastically suspended side by side and spaced apart inside the motor frame. The two bases include a first base and a second base.

[0022] The conductive adapter plate is fixedly connected to the motor frame and is located on the side of the wire pressing structure away from the coil;

[0023] The cable of one of the wiring modules is a first cable, and the cable of the other wiring module is a second cable;

[0024] The connecting end of the first cable is soldered to the conductive plate corresponding to the first base, and the extension of the first cable is electrically connected to the conductive adapter plate at the position corresponding to the second base.

[0025] The connecting end of the second cable is soldered to the conductive plate corresponding to the second base, and the extension of the second cable is electrically connected to the conductive adapter plate at the position corresponding to the first base.

[0026] In one embodiment, the conductive adapter plate has a first plate surface facing the coil and a second plate surface facing away from the coil, an extension of the first cable being electrically connected to the first plate surface and an extension of the second cable being electrically connected to the second plate surface.

[0027] In one embodiment, the motor assembly further includes a wire fastener, the wire fastener including a first wire fastening portion and a second wire fastening portion protruding from the first plate surface and the second plate surface, respectively; an extension of the first cable is pressed against the first plate surface through the first wire fastening portion, and an extension of the second cable is pressed against the second plate surface through the second wire fastening portion.

[0028] In one embodiment, the conductive adapter plate extends in a long strip shape along the preset direction, and both conductive plates are located at the middle of the conductive adapter plate in the preset direction. The extensions of the first cable and the second cable are electrically connected to the ends of the conductive adapter plate in the preset direction.

[0029] This utility model also proposes an electric shearing device, including a housing, a cutter head assembly, and a motor assembly as described in any of the above embodiments. The motor assembly is installed inside the housing, and the cutter head assembly is connected to the moving parts of the motor assembly.

[0030] This utility model's motor assembly electrically connects cables and coils via a conductive plate. Compared to direct welding of cables and coils, this conductive plate has a flat welding surface, reducing the welding difficulty of cables and coils and improving the stability of their electrical connection. Furthermore, the connection end of the cable to the conductive plate is covered with welding metal, which improves the conductivity and welding performance of the cable. In addition, by pressing the first pressure section onto the extension section, the connection point between the cable extension section and the connection end (i.e., the connection between the cable without welding metal and the cable with welding metal) is located on the side of the first pressure section closer to the welding point of the connection end. This allows the connection point between the cable extension section and the connection end to fit smoothly against the conductive plate, preventing long-term reciprocating stress due to cable swaying. This effectively avoids breakage due to reciprocating stress at the connection point between the connection end and the extension section, thus extending the service life of the motor assembly. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of an embodiment of the motor assembly of this utility model is shown;

[0033] Figure 2 for Figure 1 Bottom view of the motor assembly;

[0034] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0035] Figure 4 This is a schematic diagram of another embodiment of the motor assembly of this utility model;

[0036] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0037] Figure 6 This is a schematic diagram of another embodiment of the motor assembly of this utility model;

[0038] Figure 7 for Figure 6 Exploded view of the motor assembly;

[0039] Figure 8 for Figure 7 Another structural diagram of the motor assembly, showing the motor frame removed;

[0040] Figure 9This is an assembly diagram of the wiring module, wire fastener, and conductive adapter plate of this utility model.

[0041] Figure 10 for Figure 9 A schematic diagram of the structure from another angle;

[0042] Figure 11 for Figure 10 Exploded view of the middle structure;

[0043] Figure 12 This is a schematic diagram of the assembly of the cable and conductive plate of this utility model;

[0044] Figure 13 This is a schematic diagram of the assembly of the pressure wire structure and the conductive plate of this utility model;

[0045] Figure 14 for Figure 13 Exploded view of the middle structure;

[0046] Figure 15 This is a schematic diagram of the structure of an embodiment of the electric shearing device of this utility model;

[0047] Figure 16 for Figure 15 Exploded view of a medium-sized electric shearing device;

[0048] Figure 17 for Figure 16 Assembly diagram of the motor assembly and the mechanism support;

[0049] Figure 18 for Figure 17 Exploded view of the middle structure;

[0050] Figure 19 for Figure 17 A cross-sectional view of the structure from one angle;

[0051] Figure 20 This is a structural schematic diagram of one embodiment of the housing of this utility model.

[0052] Explanation of icon numbers:

[0053]

[0054]

[0055] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0057] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0058] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B.

[0059] This invention proposes a motor assembly that can be applied to an electric shearing device to drive the moving blade of the electric shearing device to reciprocate in order to cut hair.

[0060] In this embodiment of the utility model, please refer to Figures 1 to 5 , Figure 11 and Figure 12 The motor assembly 100 includes a base 110, a coil 120 mounted on the base 110, and a wiring module 130. The wiring module 130 includes a conductive plate 131, a cable 134, and a wire clamping structure 140. The conductive plate 131 is fixedly connected to the side of the base 110 away from the coil 120 and is electrically connected to the lead-out end 121 of the coil 120. The cable 134 includes an adjacent connecting end 135 and an extension section 136. The connecting end 135 is covered with welding metal, and its end is welded to the conductive plate 131. The wire clamping structure 140 includes a first wire clamping portion 141, which clamps the extension section 136 so that the connection point between the connecting end 135 and the extension section 136 is located on the side of the first wire clamping portion 141 near the welding point of the connecting end 135.

[0061] In this embodiment, the motor assembly 100 may include only one set of coils 120 (electromagnets), or it may include two or more sets of coils 120 (electromagnets), without specific limitation. The base 110 provides mounting for the coils 120, wiring modules 130, etc. The shape and structure of the base 110 can vary greatly, for example, it can be plate-shaped, frame-shaped, etc. In practice, the motor assembly 100 also includes a motor frame and a moving component 150. The moving component 150 can reciprocate along a preset direction under the magnetic induction of the coils 120. This allows the two ends of the base 110 to be hung inside the motor frame via elastic connectors. Thus, when the moving component 150 reciprocates along the preset direction, it pushes the coils 120 and the base 110 as a whole to move relative to the motor frame in the opposite direction. Therefore, the coils 120 and the moving component 150 can move relative to each other in the preset direction, which can buffer the vibration of the coils 120 and the moving component 150, reduce the vibration transmitted to the motor frame, and thus weaken the vibration of the motor assembly 100.

[0062] The driving component of the motor assembly 100 includes an iron core, a winding frame, and a coil 120 wound on the winding frame. The winding frame is fitted onto the iron core, and the iron core can be fixed to the base 110 by welding. The winding frame can be fixed to the base 110 by snap-fitting, interlocking, or other methods. The moving component 150 typically includes a magnet mounting bracket and a permanent magnet mounted on the magnet mounting bracket, with both ends of the magnet mounting bracket connected to the base 110 via elastic supports. Thus, when alternating positive and negative currents are applied to the coil 120, the driving assembly forms an electromagnet. Through the magnetic induction between the electromagnet and the permanent magnet, and the elastic recovery of the two sets of elastic supports, the moving component 150 reciprocates in a preset direction.

[0063] The conductive plate 131 can be directly fixed to the base 110, or it can be fixed to the base 110 through other structures, such as the wire clamping structure 140. It is understood that the conductive plate 131 can specifically be a circuit board with conductive lines. The lead-out end 121 of the coil 120 can be directly soldered to the surface of the conductive plate 131, or the lead-out end 121 of the coil 120 can be inserted into the slot of the conductive plate 131 and then soldered. The conductive plate 131 enables the electrical connection between the cable 134 and the coil 120 of the drive assembly. The shape of the conductive plate 131 can also be selected and designed according to actual needs; for example, the conductive plate 131 can be designed as rectangular, circular, etc. The connection end 135 of the cable 134 is electrically connected to the conductive plate 131, either by soldering or by using an electrical connector.

[0064] Cable 134 comprises multiple strands of fine copper wire and an insulating layer. The connecting end 135 of cable 134 is covered with solder metal, meaning that the copper wires of cable 134 are covered with solder metal. Specifically, the copper wires of cable 134 can be coated with solder metals such as tin, silver, etc., through methods such as tinning, silver plating, etc. By covering the connecting end 135 of cable 134 with solder metal, the conductivity between the connecting end 135 and the conductive plate 131 can be increased, and the soldering performance of the connecting end 135 can be improved. Since the connecting end 135 of cable 134 becomes harder after being covered with solder metal, covering the connecting end 135 of cable 134 with solder metal only improves the conductivity and soldering performance of cable 134, while making the cable 134 as a whole flexible, able to absorb and buffer vibration, and prevent the cable 134 from breaking due to long-term vibration or swing.

[0065] The wire clamping structure 140 can be fixedly connected to the base 110 by welding, snap-fitting, or other methods. The first wire clamping part 141 is used to clamp the extension section 136 of the cable 134 onto the first conductive plate 131. Specifically, the first wire clamping part 141 has a wire through hole or a wire through groove, so that the extension section 136 passes through the wire through hole to be clamped.

[0066] The motor assembly 100 of this invention electrically connects the cable 134 and the coil 120 via a conductive plate 131. Compared to direct welding of the cable 134 and the coil 120, the conductive plate 131 has a flat welding surface, which reduces the welding difficulty of the cable 134 and the coil 120 and improves the stability of their electrical connection. Furthermore, the connection end 135 between the cable 134 and the conductive plate 131 is covered with welding metal, which improves the conductivity and welding performance of the cable 134. Furthermore, by pressing the first pressure part 141 against the extension section 136, the connection point between the extension section 136 of the cable 134 and the connecting end 135 (that is, the connection point between the cable 134 without weld metal and with weld metal) is located on the side of the first pressure part 141 near the welding point of the connecting end 135. In this way, the connection point between the extension section 136 of the cable 134 and the connecting end 135 can be stably attached to the conductive plate 131, and will not be subjected to repeated force due to the swinging of the cable 134. This can effectively prevent the connection point between the connecting end 135 and the extension section 136 from breaking due to repeated force, and improve the service life of the motor assembly 100.

[0067] In one embodiment, please refer again Figures 1 to 5 , Figures 11 to 14 The pressure wire structure 140 also includes a second pressure wire portion 142 spaced apart from the first pressure wire portion 141. The second pressure wire portion 142 is located between the first pressure wire portion 141 and the welding point. The extension section 136 passes through and is pressed onto the second pressure wire portion 142, so that the connection point between the connecting end 135 and the extension section 136 is located on the side of the second pressure wire portion 142 near the welding point of the connecting end.

[0068] In this embodiment, the first pressure part 141 and the second pressure part 142 are used together to press the extension section 136 onto the first conductive plate 131. Specifically, the second pressure part 142 has a wire hole or wire groove, through which the extension section 136 passes for pressing. By setting the second pressure part 142 between the first pressure part 141 and the welding point to press the extension section 136, the end of the connecting end 135 can be held more stably in the connection position, thereby effectively preventing the welding point between the connecting end 135 and the conductive plate 131 from loosening, and further improving the electrical connection stability between the cable 134 and the conductive plate 131. At the same time, it can also further prevent the connecting end 135 and the extension section 136 from swinging relative to each other and being repeatedly stressed, thereby greatly improving the connection stability between the connecting end 135 and the extension section 136 and reducing the possibility of cable 134 breakage.

[0069] In one embodiment, the extension 136 is bent between the first pressure wire portion 141 and the welding point. Thus, the extension 136 is bent and pressed against the second pressure wire portion 142. Compared to a straight extension 136, the bent extension 136 can engage with the second pressure wire portion 142 in its straight direction of extension, preventing the extension 136 from detaching from the second pressure wire portion 142 in its extension direction. This effectively improves the electrical connection stability between the connection end 135 and the conductive plate 131.

[0070] In one embodiment, such as Figures 1 to 8 As shown, the motor assembly 100 also includes a moving part 150, which is located on the side of the coil 120 away from the base 110, and the moving part 150 can reciprocate in a preset direction under the electromagnetic action of the coil 120.

[0071] The second pressure line portion 142 and the first pressure line portion 141 are spaced apart along the first direction; the first direction, the preset direction and the thickness direction of the base 110 are perpendicular to each other.

[0072] In this embodiment, the moving component 150 typically includes a magnet mounting bracket and a permanent magnet mounted on the magnet mounting bracket, such that both ends of the magnet mounting bracket are connected to the base 110 via elastic supports. Thus, when alternating positive and negative currents are applied to the coil 120, the coil 120 forms an electromagnet. Through the magnetic induction between the electromagnet and the permanent magnet, and the elastic recovery action of the two sets of elastic supports, the moving component 150 reciprocates along a preset direction.

[0073] If the preset direction is defined as the left-right direction, then the first direction is the front-back direction, and the thickness direction of the base 110 is the up-down direction. Since the coil 120 drives the moving part 150 to reciprocate along the preset direction through electromagnetic action, the motor assembly 100 as a whole will generate reciprocating vibration along the preset direction. This allows the second pressing part 142 and the first pressing part 141 to be spaced apart along the first direction. The first pressing part 141 and the second pressing part 142 can then press the extension section 136 and the connecting end 135 at the upper limit in the preset direction, effectively preventing the connecting end 135 of the entire cable 134 from translating in the preset direction. This further improves the welding stability between the connecting end 135 of the cable 134 and the conductive plate 131, and reduces the possibility of breakage between the connecting end 135 and the extension section 136 of the cable 134.

[0074] In one embodiment, please refer to Figures 1 to 5 , Figure 11 and Figure 12 The extension 136 between the first pressing part 141 and the second pressing part 142 bends toward one side of a preset direction, and the extension 136 between the second pressing part 142 and the connecting end 135 bends toward the other side of the preset direction.

[0075] In this embodiment, the portion of the connecting end 135 adjacent to the extension section 136 is bent. By making the portions of the connecting end 135 and the extension section 136 adjacent to the connecting end 135 bend in opposite directions in a predetermined direction, and the first pressure part 141 and the second pressure part 142 respectively press against both sides of the bent portion of the extension section 136, compared to the extension section 136 and the connecting end 135 being a straight segment as a whole, the first pressure part 141 and the second pressure part 142 can respectively hold the extension section 136 and the connecting end 135 on both sides in the bending direction, preventing the cable 134 from detaching from the first pressure part 141 and the second pressure part 142 in its extension direction. In this way, the electrical connection stability between the connecting end 135 and the conductive plate 131 can be further improved, preventing the solder joints of the connecting end 135 from loosening or falling off, and at the same time, the possibility of breakage between the connecting end 135 and the extension section 136 of the cable 134 can be further reduced.

[0076] In one embodiment, such as Figures 1 to 12 As shown, there are two cables 134, and the connection ends 135 of the two cables 134 are spaced apart in a preset direction. The two cables 134 are a positive wire and a negative wire, respectively. By arranging the connection ends 135 of the two cables 134 opposite each other in the preset direction, the connection ends 135 of the two cables 134 can be placed close together, so that the connection ends 135 of the two cables 134 can be connected to the same conductive plate 131, reducing the number of components and simplifying the wiring process.

[0077] Furthermore, the extension segments 136 of the two cables 134 are bent in opposite directions in a predetermined direction. In this way, the extension segments 136 of the two cables 134 can be bent in opposite directions to both ends of the base 110, which can increase the extension length of the cables 134 and avoid stress fatigue of the cables 134 due to long-term vibration.

[0078] In one embodiment, please refer to Figures 1 to 5 , Figure 13 and Figure 14 The base 110 is provided with two second pressure parts 142 at intervals in a preset direction. The connection ends 135 of the two cables 134 are respectively pressed into the two second pressure parts 142, and the extension sections 136 of the two cables 134 are pressed into the same first pressure part 141.

[0079] In this embodiment, the first wire pressing part 141 may specifically include one or two wire pressing holes, so that the extensions 136 of the two cables 134 are both passed through the same wire pressing hole or are respectively passed through two wire pressing holes. The second wire pressing part 142 may have holes or grooves for the extensions 136 of the cables 134 to pass through. The first wire pressing part 141 is used to perform initial pressing and positioning of the cables 134, and then the second wire pressing part 142 performs secondary pressing and limiting of the cables 134 to ensure the stability of the connection end 135 on the conductive plate 131. In addition, by pressing the extensions 136 of the two cables 134 together with the same first wire pressing part 141, the number of first wire pressing parts 141 can be reduced, and the spacing between the extensions 136 of the two cables 134 can be smaller, so that the overall structure is more compact. By pressing the connection ends 135 of the two cables 134 onto the two second pressing parts 142 respectively, the distance between the two connection ends 135 can be increased, which makes it easier to weld the connection ends 135.

[0080] Furthermore, the first wire pressing part 141 is provided with a wire pressing hole 141a, through which the extension sections 136 of the two cables 1134 pass; and / or, the two second wire pressing parts 142 are respectively provided with wire clamping grooves 143, and the connecting ends 135 of the two cables 134 are respectively clamped in the two wire clamping grooves 143.

[0081] In this embodiment, the first wire pressing part 141 is provided with a wire pressing hole 141a. The wall of the wire pressing hole 141a can limit the extension sections 136 of the two cables 134 in a preset direction, preventing the cables 134 from excessively shifting in the preset direction. A wire clamping groove is provided on the second wire pressing part 142, allowing the cables 134 to be inserted into the groove 143 through its opening. Compared to a wire clamping hole, this makes fixing the cables 134 on the second wire pressing part 142 more convenient and further improves the clamping tightness of the cables 134. Optionally, the openings of the wire clamping grooves 143 of the two second wire pressing parts 142 are arranged opposite to each other. Since the connecting ends 135 of the two cables 134 are arranged opposite each other, and the extension sections 136 are arranged opposite to each other, making it easier for the connecting ends 135 to be clamped into the second wire pressing part 142. Furthermore, the wire slot 143 and the wire pressing hole 141a can reliably limit the cable 134 in a preset direction, effectively preventing the cable 134 from falling off the second wire pressing part 142.

[0082] Furthermore, the distance between the extensions 136 of the two cables 134 at the second pressure point 142 is greater than the distance between the extensions 136 of the two cables 134 at the first pressure point 141 and the distance between the welding points of the two cables 134.

[0083] Understandably, the cable 134 bends in an S-shape from the end of the connector 135 to the extension 136. By making the distance between the extensions 136 of the two cables 134 at the second pressure point 142 greater than the distance between the extensions 136 of the two cables 134 at the first pressure point 141 and the distance between the welding points of the two cables 134, both the first pressure point 141 and the second pressure point 142 can be pressed together at the bending point of the cable 134, thereby improving the pressing reliability of the cable 134 by the first pressure point 141 and the second pressure point 142.

[0084] In another embodiment, such as Figure 4 and Figure 5 As shown, the first wire pressing part 141 is provided with two wire pressing holes 141a, and the extension sections 136 of the two cables 134 are respectively inserted into the two wire pressing holes 141a. The first wire pressing part 141 is also provided with a partition 146 located between the two wire pressing holes 141a.

[0085] In this embodiment, the first wire pressing part 141 is provided with a wire pressing hole 141a. The wall of the wire pressing hole 141a can limit the extension segments 136 of the two cables 134 in a preset direction, preventing the cables 134 from shifting excessively in the preset direction. By pressing the extension segments 136 of both cables 134 onto the same first wire pressing part 141, the number of first wire pressing parts 141 can be reduced, and the spacing between the extension segments 136 of the two cables 134 can be smaller, resulting in a more compact overall structure.

[0086] The partition 146 can be provided on the side of the first wire clamping portion 141 facing and / or away from the second wire clamping portion 142. By providing the partition 146, the extension sections 136 of the two cables 134 can be isolated to avoid short circuits caused by long-term collision. Optionally, the partition 146 is provided on the side of the first wire clamping portion 141 away from the second wire clamping portion 142, located between the two wire clamping holes 141a and the two extension sections 136. It is understood that the cables 134 located between the first wire clamping portion 141 and the second wire clamping portion 142 are almost unlikely to collide with each other. However, because the cables are bent and pressed from the second wire clamping portion 142 to the first wire clamping portion 141, the extension sections 136 of the two cables 134 are relatively close to each other on the side of the first wire clamping portion 141 away from the second wire clamping portion 142, and they are prone to collision. Therefore, by placing the partition 146 on the side of the first wire pressing part 141 away from the second wire pressing part 142, it can more effectively prevent the extension sections 136 of the two cables 134 from colliding near the first wire pressing part 141.

[0087] In one embodiment, the wire pressing structure 140 further includes a mounting plate 144 disposed between the conductive plate 131 and the base 110, wherein the second wire pressing part 142 and the first wire pressing part 141 are connected to the surface of the mounting plate 144 away from the coil 120; the conductive plate 131 is fixed to the mounting plate 144, and the conductive plate 131 is provided with a through hole 132 for the second wire pressing part 142 and the first wire pressing part 141 to pass through.

[0088] In this embodiment, the mounting plate 144 and the base 110 can be fixedly connected by screws, welding, snap-fitting, or other methods. By setting the mounting plate 144 to connect the first pressure part 141 and the second pressure part 142, the entire pressure structure 140 is modularized, making it easier to assemble the pressure structure 140 with the base 110. The mounting plate 144 is located between the conductive plate 131 and the base 110, providing mounting for the conductive plate 131 while also separating the conductive plate 131 from the stator core and other structures on the base 110. Since the pressure structure 140 is generally made of insulating material, the mounting plate 144 can also insulate the conductive plate 131 and the stator core and other structures on the base 110, improving the safety and reliability of the product.

[0089] Furthermore, such as Figure 13and Figure 14 As shown, a heat-fusion post 145 protrudes from the surface of the mounting plate 144 away from the coil 120. A through hole 133 is provided on the conductive plate 131. The heat-fusion post 145 is inserted into the through hole 133 and heat-fused to the conductive plate 131 at the through hole 133. The number and position of the heat-fusion post 145 can be designed according to actual needs and are not specifically limited here. The mounting plate 144 can be made of plastic. By making the mounting plate 144 and the conductive plate 131 heat-fused together, the connection between the conductive plate 131 and the mounting plate 144 is guaranteed to be firm and reliable, and no other connection structure is required, thus ensuring the surface flatness of the conductive plate 131.

[0090] In one embodiment, please refer to Figures 6 to 12 The motor assembly 100 also includes a motor frame and a conductive adapter plate 170;

[0091] Two bases 110, two coils 120 and two wiring modules 130 are provided. The two bases 110 are elastically suspended in the motor frame side by side and spaced apart. The two bases 110 include a first base 111 and a second base 112.

[0092] The conductive adapter plate 170 is fixedly connected to the motor frame and is located on the side of the wire pressing structure 140 away from the coil 120. The conductive adapter plate 170 is provided with a conductive element 180 on the side away from the coil 120.

[0093] One of the wiring modules 130 has a cable 134 that is the first cable 137, and the other wiring module 130 has a cable 134 that is the second cable 138.

[0094] The connecting end 135 of the first cable 137 is soldered to the conductive plate 131 corresponding to the first base 111, and the extension 136 of the first cable 137 is electrically connected to the conductive adapter plate 170 at the position corresponding to the second base 112.

[0095] The connecting end 135 of the second cable 138 is soldered to the conductive plate 131 corresponding to the second base 112, and the extension 136 of the second cable 138 is electrically connected to the conductive adapter plate 170 at the position corresponding to the first base 111.

[0096] In this embodiment, by setting two sets of bases 110, coils 120, and wiring modules 130, the electric shearing device using the motor assembly 100 is driven by dual motors, which can effectively improve shearing efficiency. The two ends of the first base 111 and the second base 112 in a preset direction can be elastically suspended in the motor frame through elastic connectors. By making the first base 111 and the second base 112 elastically suspended in the motor frame, when the moving part 150 reciprocates in the preset direction, it will push the coil 120 and the base 110 as a whole to move in the opposite direction relative to the motor frame. Therefore, the coil 120 and the moving part 150 can move relative to each other in the preset direction, which can buffer the vibration of the coil 120 and the moving part 150, reduce the vibration transmitted to the motor frame, and thus weaken the vibration of the motor assembly 100.

[0097] The conductive adapter plate 170 is connected to the motor frame via an insulating structure (such as the connecting plate of the cable tie 190). The conductive element 180 of the conductive adapter plate 170 is used for electrical connection with the power supply. Specifically, the conductive element 180 can be a conductive post, conductive shoe, etc. This conductive adapter plate 170 enables electrical connection of multiple cables 134 to the power supply, greatly reducing the difficulty of aligning the cables 134 and improving the ease of wiring operations. The conductive adapter plate 170 can specifically be a circuit board with conductive lines. The shape of the conductive adapter plate 170 can also be selected and designed according to actual needs; for example, it can be designed as a long strip, rectangle, etc. The extension section 136 can be electrically connected to the conductive adapter plate 170 through welding, plugging in electrical connectors, etc.

[0098] By extending the first cable 137's extension segment 136 to the corresponding second base 112 and electrically connecting it to the conductive adapter plate 170, and extending the second cable 138's extension segment 136 to the corresponding first base 111 and electrically connecting it to the conductive adapter plate 170, the extension lengths of the first cable 137 and the second cable 138 can be increased. This can buffer and absorb vibration, prevent stress concentration and fatigue fracture of the cable 134, and increase the stability of the electrical connection between the extension segment 136 and the conductive adapter plate 170.

[0099] Furthermore, the conductive adapter plate 170 has a first plate surface 171 facing the coil 120 and a second plate surface 172 facing away from the coil 120, an extension 136 of the first cable 137 is electrically connected to the first plate surface 171, and an extension 136 of the second cable 138 is electrically connected to the second plate surface 172.

[0100] In this embodiment, if the first cable 137 and the second cable 138 are both electrically connected to the first plate surface 171 of the conductive adapter plate 170, the central space of the first plate surface 171 will be occupied. Therefore, to facilitate wiring, the distance between the first plate surface 171 and the base 110 needs to be larger, which will increase the space occupied by multiple cables 134 in the height direction of the motor assembly 100, hindering the miniaturization of the motor assembly 100. Conversely, if the first cable 137 and the second cable 138 are both electrically connected to the second plate surface 172 of the conductive adapter plate 170, the central space of the second plate surface 172 will be occupied. Thus, when the motor assembly 100 is assembled inside the electric shearing device, other components (such as the charging component 210) cannot be close to the second plate surface 172, which is detrimental to reducing the height of the electric shearing device.

[0101] By electrically connecting the extension 136 of the first cable 137 to the first plate surface 171 of the conductive adapter plate 170, and the extension 136 of the second cable 138 to the second plate surface 172 of the conductive adapter plate 170, compared to electrically connecting both the first cable 137 and the second cable 138 to the same plate surface of the conductive adapter plate 170, the space occupied by multiple cables 134 in the height direction of the motor assembly 100 can be reduced. This allows the layout of the motor assembly 100 in the height direction to be more compact, thereby reducing the height dimension of the motor assembly 100 and facilitating the miniaturization of the motor assembly 100.

[0102] In one embodiment, please refer again Figures 6 to 12 The motor assembly 100 also includes a cable holder 190, which includes a first cable holder portion 191 and a second cable holder portion 192 protruding from the first plate surface 171 and the second plate surface 172, respectively; the extension 136 of the first cable 137 is pressed onto the first plate surface 171 through the first cable holder portion 191, and the extension 136 of the second cable 138 is pressed onto the second plate surface 172 through the second cable holder portion 192.

[0103] In this embodiment, it is understood that the wire fastener 190 is made of insulating material. The first wire fastening part 191 and the second wire fastening part 192 can be connected to each other and pass through the conductive adapter plate 170, or the first wire fastening part 191 and the second wire fastening part 192 can be unconnected and separately disposed on both sides of the conductive adapter plate 170. The first wire fastening part 191 and the second wire fastening part 192 are used to pre-position and limit the extension segments 136 of the first cable 137 and the second cable 138, respectively, so that the extension segments 136 of the first cable 137 and the second cable 138 are kept in a position close to the conductive adapter plate 170 for electrical connection. This can prevent the first cable 137 and the second cable 138 from shifting during welding and make the electrical connection operation between the first cable 137, the second cable 138 and the conductive adapter plate 170 more convenient. Meanwhile, since the first cable 137 and the second cable 138 are clamped to the electrically fixed ends of the conductive adapter plate 170 by the first fixing part 191 and the second fixing part 192, the first cable 137 and the second cable 138 can be kept in the connection position with the electrically fixed ends of the conductive adapter plate 170, thereby avoiding the connection point from falling off due to long-term vibration.

[0104] The structure of the first wire-fixing part 191 and the second wire-fixing part 192 can be varied. For example, the first wire-fixing part 191 and the second wire-fixing part 192 can specifically be wire-pressing blocks with through holes for the cable 134 to pass through, thereby pressing the cable 134 onto the surface of the conductive adapter plate 170. The specific structure of the wire-fixing device 190 can be selected and designed according to actual needs, and no specific limitation is made here.

[0105] Furthermore, the conductive adapter plate 170 extends in a long strip along a preset direction, with both conductive plates 131 corresponding to the middle of the conductive adapter plate 170 in the preset direction. The extensions 136 of the first cable 137 and the second cable 138 are electrically connected to the ends of the conductive adapter plate 170 in the preset direction. This concentrates the electrical connection points between the first cable 137, the second cable 138, and the conductive plate 131, making welding operations easier for operators. It also helps increase the extension length of the first cable 137 and the second cable 138, which can buffer and absorb vibration, preventing stress concentration and fatigue fracture of the cable 134. In addition, it allows for a more uniform overall weight distribution, and the lengths of the two first cables 137 and the two second cables 138 can be kept essentially the same, resulting in a more regular lead layout for the entire wiring module 130 and reducing wiring difficulty.

[0106] This utility model also proposes an electric shearing device, such as... Figure 15 and Figure 16As shown, the electric hair shearing device includes a housing 200, a blade assembly 300, and a motor assembly 100. The specific structure of the motor assembly 100 is as described in the above embodiments. The motor assembly 100 is installed inside the housing 200, and the blade assembly 300 is connected to the moving part 150 of the motor assembly 100. Since this electric hair shearing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here. The shape of the housing 200 can be selected and designed according to actual needs, and is not specifically limited here. The blade assembly 300 specifically includes a moving blade and a stationary blade covering the outside of the moving blade. The blade can be a long-hair blade or a short-hair blade. The moving part 150 of the motor assembly 100 is connected to the moving blade of the blade to drive the moving blade to reciprocate relative to the stationary blade in a preset direction to cut hair.

[0107] Please refer to Figures 16 to 20 In the above embodiment, which includes a motor frame and a conductive adapter plate 170, and two of each of the base 110, coil 120 and wiring module 130, the inner bottom wall of the housing 200 is provided with a charging component 210.

[0108] The electric shearing device also includes a core support 400 installed in the housing 200. The core support 400 has a receiving cavity 410 for accommodating the motor assembly 100, which is installed in the receiving cavity 410. A battery is provided on the core support 400. The core support 400 has a first conductive part 420 facing the motor assembly 100 and a second conductive part 430 facing the charging assembly 210. The first conductive part 420 and the second conductive part 430 are electrically connected to the battery.

[0109] The conductive element 180 of the motor assembly 100 is electrically connected to the first conductive part 420, and the second conductive part 430 is electrically connected to the charging assembly 210.

[0110] In this embodiment, the motor assembly 100 is housed within the receiving cavity 410 of the core support 400, resulting in a more compact overall structure and facilitating the miniaturization of the electric shearing equipment. The charging assembly 210 is used to connect to an external power source to charge the battery. By providing a first conductive portion 420 facing the motor assembly 100 and a second conductive portion 430 facing the charging assembly 210 on the core support 400, when the motor assembly 100 is housed within the receiving cavity 410 of the core support 400, the conductive element 180 of the motor assembly 100 can be electrically connected to the first conductive portion 420 of the core support 400. When the core support 400 is installed within the housing 200, the second conductive portion 430 on the core support 400 can be electrically connected to the charging assembly 210 within the housing 200. This enables rapid electrical connection between the charging assembly 210, the power source on the core support 400, and the motor assembly 100, greatly simplifying the electrical connection process and improving the overall assembly efficiency of the machine. The first conductive part 420, the second conductive part 430, and the conductive member 180 can be conductive posts or conductive shoes. The charging assembly 210 is provided with conductive posts or conductive shoes that cooperate with the second conductive part 430 to achieve electrical connection.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A motor assembly, comprising a base, a coil mounted on the base, and a wiring module, characterized in that, The wiring module includes a conductive plate, cables, and a wire clamping structure; The conductive plate is fixedly connected to the base on the side opposite to the coil and is electrically connected to the lead-out end of the coil. The cable includes adjacent connecting ends and extension sections, the connecting ends are covered with welding metal, and the connecting ends are welded to the conductive plate; The pressure wire structure includes a first pressure wire portion, which presses the extension section together so that the connection point between the connecting end and the extension section is located on the side of the first pressure wire portion near the welding point of the connecting end.

2. The motor assembly as described in claim 1, characterized in that, The pressure wire structure further includes a second pressure wire portion spaced apart from the first pressure wire portion. The second pressure wire portion is located between the first pressure wire portion and the welding point, and the extension section passes through and is pressed onto the second pressure wire portion.

3. The motor assembly as described in claim 2, characterized in that, The extension section is curved between the first pressure line and the welding point.

4. The motor assembly as described in claim 3, characterized in that, The motor assembly also includes a moving part, which is located on the side of the coil away from the base, and the moving part can reciprocate in a preset direction under the electromagnetic action of the coil; The second pressure line portion and the first pressure line portion are spaced apart along the first direction; the first direction, the preset direction and the thickness direction of the base are perpendicular to each other.

5. The motor assembly as described in claim 4, characterized in that, The extension between the first pressure part and the second pressure part bends toward one side of the preset direction, and the extension between the second pressure part and the connecting end bends toward the other side of the preset direction.

6. The motor assembly as claimed in claim 4, characterized in that, The cable has two wires, and the connection ends of the two cables are spaced apart in the preset direction.

7. The motor assembly as claimed in claim 6, characterized in that, The base is provided with two second pressure points spaced apart in the preset direction. The connection ends of the two cables are respectively pressed onto the two second pressure points, and the extensions of the two cables are pressed onto the same first pressure point.

8. The motor assembly as claimed in claim 7, characterized in that, The first wire pressing part is provided with a wire pressing hole, and the extension sections of both cables are provided through the wire pressing hole; and / or, the two second wire pressing parts are respectively provided with wire clamping grooves, and the connecting ends of the two cables are respectively clamped in the two wire clamping grooves.

9. The motor assembly as claimed in claim 7, characterized in that, The first wire pressing part is provided with two wire pressing holes, and the extensions of the two cables are respectively inserted into the two wire pressing holes. The first wire pressing part is also provided with a partition plate located between the two wire pressing holes.

10. The motor assembly as claimed in claim 2, characterized in that, The wire pressing structure further includes a mounting plate disposed between the conductive plate and the base, wherein the second wire pressing part and the first wire pressing part are connected to the surface of the mounting plate opposite to the coil; the conductive plate is fixed to the mounting plate, and the conductive plate is provided with a through hole for the second wire pressing part and the first wire pressing part to pass through.

11. The motor assembly as claimed in any one of claims 1 to 10, characterized in that, The motor assembly also includes a motor frame and a conductive adapter plate; The base, coil, and wiring module are each provided in twos. The two bases are elastically suspended side by side and spaced apart inside the motor frame. The two bases include a first base and a second base. The conductive adapter plate is fixedly connected to the motor frame and is located on the side of the wire pressing structure away from the coil; The cable of one of the wiring modules is a first cable, and the cable of the other wiring module is a second cable; The connecting end of the first cable is soldered to the conductive plate corresponding to the first base, and the extension of the first cable is electrically connected to the conductive adapter plate at the position corresponding to the second base. The connecting end of the second cable is soldered to the conductive plate corresponding to the second base, and the extension of the second cable is electrically connected to the conductive adapter plate at the position corresponding to the first base.

12. The motor assembly as claimed in claim 11, characterized in that, The conductive adapter plate has a first plate surface facing the coil and a second plate surface facing away from the coil. The extension of the first cable is electrically connected to the first plate surface, and the extension of the second cable is electrically connected to the second plate surface. The motor assembly further includes a cable holder, which includes a first cable holding portion and a second cable holding portion protruding from the first plate surface and the second plate surface, respectively. The extension of the first cable is pressed against the first plate surface through the first cable holding portion, and the extension of the second cable is pressed against the second plate surface through the second cable holding portion.

13. The motor assembly as claimed in claim 12, characterized in that, The conductive adapter plate extends in a long strip along a preset direction, and both conductive plates are located at the middle of the conductive adapter plate in the preset direction. The extensions of the first cable and the second cable are electrically connected to the ends of the conductive adapter plate in the preset direction.

14. An electric shearing device, characterized in that, It includes a housing, a cutter head assembly, and a motor assembly as described in any one of claims 1 to 13, wherein the motor assembly is installed within the housing, and the cutter head assembly is connected to the moving parts of the motor assembly.

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