Linear actuator and electric razor

Abstract

The utility model discloses a linear actuator and an electric shaver, the linear actuator comprises an actuator body, and the actuator body comprises a base, a driving assembly, a moving assembly, a first conductive plate, a cable and a cable pressing structure; the driving assembly is installed on the base and drives the moving assembly to reciprocate in the preset direction through the electromagnetic action. The first conductive plate and the wire pressing structure are fixed to the side, away from the driving assembly, of the base, the wire pressing structure comprises a first wire pressing part and a second wire pressing part, and the first wire pressing part and the second wire pressing part are arranged at intervals along the plate face of the first conductive plate; the cable comprises a connecting end and a crimping section which are connected with each other, the connecting end is electrically connected with the first conductive plate, and the crimping section penetrates through the first wire pressing part and the second wire pressing part so as to be pressed on the first conductive plate. According to the linear actuator provided by the utility model, the crimping sections of the cable are respectively pressed through the two wire pressing parts, so that the length of the wire pressing parts of the cable is increased, and the connecting point of the connecting end and the first conductive plate is not easy to loosen.

Description

Technical Field

[0001] This application relates to the field of linear motor technology, and in particular to a linear actuator and an electric shaver. Background Technology

[0002] Linear actuators, also known as linear motors, are widely used in handheld devices such as electric shavers due to their advantages of simple structure, high positioning accuracy, fast response speed, and safe and reliable operation. The coil leads of a linear actuator are connected to the power supply via cables to ensure the motor can operate continuously and stably. Because linear motors perform high-speed reciprocating linear motion, the stability of the cable connection is critical. If the connection between the cable and the motor coil leads is not stable enough, it can easily loosen or detach under vibration or high-speed reciprocating motion, leading to equipment malfunction or damage.

[0003] 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

[0004] In view of the above problems, this utility model proposes a linear actuator, which aims to solve the technical problem that the connection between the coil lead and the cable of the linear actuator is prone to loosening.

[0005] To achieve the above objectives, the linear actuator proposed in this utility model includes an actuator body, which includes a base, a drive assembly, a motion assembly, a first conductive plate, a cable, and a wire pressing structure.

[0006] The drive component is mounted on the base, and the drive component drives the motion component to reciprocate along a preset direction through electromagnetic action;

[0007] The first conductive plate and the pressure wire structure are fixed to the side of the base away from the driving component, and the coil of the driving component is electrically connected to the first conductive plate; the pressure wire structure includes a first pressure wire portion and a second pressure wire portion, and the first pressure wire portion and the second pressure wire portion are arranged at intervals along the surface of the first conductive plate.

[0008] The cable includes a connecting end and a crimping section connected to each other. The connecting end is electrically connected to the first conductive plate, and the crimping section passes through the first crimping part and the second crimping part to be crimped onto the first conductive plate.

[0009] In one embodiment, the second crimping portion is located between the first crimping portion and the connecting end, and the crimping segment is bent between the first crimping portion and the connecting end.

[0010] In one embodiment, the crimping section includes a first bending section and a second bending section, with the two ends of the first bending section connected to the connecting end and the second bending section respectively; the bending directions of the first bending section and the second bending section are opposite, the first bending section passes through and is crimped onto the first crimping part, and the second bending section passes through and is crimped onto the second crimping part.

[0011] In one embodiment, the first bending segment bends toward one side of the preset direction, the second bending segment bends toward the other side of the preset direction, and the first pressure line portion and the second pressure line portion are arranged at intervals in the first direction; the first direction, the preset direction, and the thickness direction of the base are arranged perpendicularly to each other.

[0012] In one embodiment, the cable has two wires, the connection ends of the two cables are opposite to each other and spaced apart in a preset direction, the first bending segments of the two cables are bent relative to each other in the preset direction, and the second bending segments of the two cables are bent opposite to each other in the preset direction.

[0013] In one embodiment, the base is provided with two first pressure points spaced apart in the preset direction, the first bent sections of the two cables are respectively pressed onto the two first pressure points, and the second bent sections of the two cables are pressed onto the same second pressure point.

[0014] In one embodiment, the distance between the first bent sections of the two cables at the two first pressure points is greater than the distance between the second bent sections of the two cables at the second pressure points and the distance between the two connecting ends.

[0015] In one embodiment, the two first wire pressing portions have wire clamping grooves with their openings facing away from each other in a preset direction, and the first bent sections of the two cables are respectively clamped in the two wire clamping grooves; and / or, the second wire pressing portion has wire pressing holes for the two second bent sections to pass through.

[0016] In one embodiment, the second wire pressing part is provided with two wire pressing holes, and the second bent sections of the two cables are respectively passed through the two wire pressing holes. The second wire pressing part is also provided with a partition plate located between the two wire pressing holes.

[0017] In one embodiment, the actuator body is provided in two sets, the two actuator bodies are arranged side by side and spaced apart, wherein the cable of one actuator body is defined as a first cable and the base of the actuator body is defined as a first base, and the cable of the other actuator body is defined as a second cable and the base of the actuator body is defined as a second base.

[0018] In the parallel direction of the two actuator bodies, the connection end of the first cable is positioned opposite to the connection end of the second cable.

[0019] In one embodiment, the cable further includes a turning section and an extension section, the two ends of the turning section being smoothly connected to the extension section and the end of the second bending section away from the connecting end, respectively; the turning sections of the first cable and the second cable are bent relative to each other in the parallel direction, and the extension sections of the first cable and the second cable both extend in the parallel direction;

[0020] The linear actuator further includes a second conductive plate disposed on the side of the pressure wire structure opposite to the drive assembly. An extension of the first cable extends to the corresponding second base and is electrically connected to the second conductive plate. An extension of the second cable extends to the corresponding first base and is electrically connected to the second conductive plate.

[0021] In one embodiment, the second conductive plate has a first plate surface facing the driving assembly and a second plate surface facing away from the driving assembly, 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.

[0022] This utility model also proposes an electric shaver, including a housing, a shaver head assembly, and a linear actuator as described in any of the above embodiments. The linear actuator is installed inside the housing, and the shaver head assembly is connected to the motion component of the linear actuator.

[0023] This novel linear actuator electrically connects the cable and the coil of the drive assembly via a first conductive plate. By making the wire pressing structure include a first pressing portion and a second pressing portion spaced along the surface of the first conductive plate, and both the first pressing portion and the second pressing portion pressing the cable's crimped section, the length of the cable pressing portion near the connection end can be increased without affecting the electrical connection between the connection end and the first conductive plate. This effectively prevents the connection end from loosening due to long-term vibration or base swaying, thereby improving the connection stability between the cable and the first conductive plate and extending the service life of the entire linear actuator. Attached Figure Description

[0024] 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.

[0025] Figure 1 A schematic diagram of the structure of an embodiment of the motor assembly of this utility model is shown;

[0026] Figure 2 for Figure 1 Bottom view of the motor assembly;

[0027] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0028] Figure 4 A schematic diagram of another embodiment of the motor assembly of this utility model;

[0029] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0030] Figure 6 This is a schematic diagram of another embodiment of the motor assembly of this utility model;

[0031] Figure 7 for Figure 6 Exploded view of the motor assembly;

[0032] Figure 8 for Figure 7 Another structural diagram of the motor assembly, showing that the support bracket has been removed;

[0033] Figure 9 This is a schematic diagram showing the assembly of the first conductive plate, cable, wire clamping structure, wire fastener, and second conductive plate of this utility model.

[0034] Figure 10 for Figure 9 A schematic diagram of the structure from another angle;

[0035] Figure 11 for Figure 10 Exploded view of the middle structure;

[0036] Figure 12 This is a schematic diagram of the assembly of the cable and the first conductive plate of this utility model;

[0037] Figure 13 This is a schematic diagram of the assembly of the wire pressing structure and the first conductive plate of this utility model;

[0038] Figure 14 for Figure 13 Exploded view of the middle structure;

[0039] Figure 15 This is a schematic diagram of the structure of an embodiment of the electric shearing device of this utility model;

[0040] Figure 16 for Figure 15 Exploded view of the electric shearing equipment.

[0041] Explanation of icon numbers:

[0042] label name label name label name 100 linear actuator 110 Actuator body 111 base 112 First Foundation 113 Second base 114 Driver components 115 motion components 116 First conductive plate 120 Cable 121 Connection end 122 crimp section 123 First curved section 124 Second curved section 125 Turning section 126 extension 127 First Cable 128 Second cable 130 Wire pressing structure 131 First pressure line section 132 Cable slot 133 Second pressing section 134 partition 140 Second conductive plate 141 First panel 142 Second panel 150 conductive components 160 support 170 Fixed wire structure 171 Connecting plate 172 Cable tie 200 chassis 300 Cutter head assembly

[0043] 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

[0044] 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.

[0045] 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.

[0046] 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.

[0047] This invention proposes a linear actuator that can be applied to electric shavers to drive the moving blades of the electric shaver to reciprocate in order to cut hair.

[0048] In this embodiment of the utility model, please refer to Figures 1 to 5 , Figure 11 and Figure 12The linear actuator 100 includes an actuator body 110, which includes a base 111, a drive assembly 114, a motion assembly 115, a first conductive plate 116, a cable 120, and a wire pressing structure 130. The drive assembly 114 is mounted on the base 111 and drives the motion assembly 115 to reciprocate along a preset direction via electromagnetic action. The first conductive plate 116 and the wire pressing structure 130 are fixed on the side of the base 111 away from the drive assembly 114. The coil of the drive assembly 114 is electrically connected to the first conductive plate 116. The wire pressing structure 130 includes a first wire pressing part 131 and a second wire pressing part 133, which are arranged at intervals along the surface of the first conductive plate 116. The cable 120 includes a connecting end 121 and a crimping section 122. The connecting end 121 is electrically connected to the first conductive plate 116, and the crimping section 122 passes through the first wire pressing part 131 and the second wire pressing part 133 to be crimped onto the first conductive plate 116.

[0049] In this embodiment, the linear actuator 100 may include only one set of actuator bodies 110, or it may include two or more sets of actuator bodies 110. The number of actuator bodies 110 can be selected according to usage requirements, and no specific limitation is made here. The base 111 is used to provide mounting for the drive assembly 114. The shape and structure of the base 111 can be varied, such as being plate-shaped, frame-shaped, etc. In some embodiments, the base can constitute the housing 200 of the entire linear actuator 100. In other embodiments, the housing 200 of the linear actuator 100 includes the base 111 and a bracket. The two ends of the base 111 are hung in the bracket by elastic connectors. Thus, when the motion component 115 reciprocates in a preset direction, it will push the drive component 114 and the base 111 to move in the opposite direction relative to the support. Therefore, the drive component 114 and the motion component 115 can move relative to each other in the preset direction, which can buffer the vibration of the drive component 114 and the motion component 115, reduce the vibration transmitted to the support, and thus weaken the vibration of the linear actuator 100.

[0050] The drive assembly 114 typically includes an iron core, a winding frame, and a coil wound on the winding frame. The winding frame is fitted onto the iron core, and the iron core can be fixed to the base 111 by welding. The winding frame can be fixed to the base 111 by snap-fitting, interlocking, or other methods. The motion assembly 115 typically includes a magnet mounting frame and a permanent magnet mounted on the magnet mounting frame, with both ends of the magnet mounting frame connected to the base 111 by elastic supports. Thus, when alternating positive and negative currents are applied to the coil, the drive assembly 114 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 motion assembly 115 reciprocates along a preset direction.

[0051] The first conductive plate 116 can be directly fixed to the base 111, or it can be fixed to the base 111 through other structures, such as the wire clamping structure 130. It is understood that the first conductive plate 116 can specifically be a circuit board with conductive lines. The coil lead-out end of the drive assembly 114 can be directly soldered to the surface of the first conductive plate 116, or the coil lead-out end can be inserted into the slot of the first conductive plate 116 and then soldered. The first conductive plate 116 enables the electrical connection between the cable 120 and the coil of the drive assembly 114. The shape of the first conductive plate 116 can also be selected and designed according to actual needs; for example, the first conductive plate 116 can be designed as rectangular, circular, etc. The connection end 121 of the cable 120 is electrically connected to the first conductive plate 116, either by soldering or by using an electrical connector.

[0052] The wire clamping structure 130 can be fixedly connected to the base 111 by welding, snap-fitting, or other methods. The first wire clamping part 131 and the second wire clamping part 133 are used to clamp the cable 120 onto the first conductive plate 116. Specifically, the first wire clamping part 131 and the second wire clamping part 133 have wire through holes or wire through grooves, so that the cable 120 passes through the wire through holes to be clamped. By arranging the first wire clamping part 131 and the second wire clamping part 133 at intervals along the surface of the first conductive plate 116, the crimped sections 122 of the cable 120 can be clamped at intervals in the extension direction of the surface of the first conductive plate 116, so that the connection end 121 can be stably held in the connection position.

[0053] The linear actuator 100 of this invention electrically connects the cable 120 and the coil of the drive assembly 114 via a first conductive plate 116. By making the wire pressing structure 130 include a first wire pressing portion 131 and a second wire pressing portion 133 spaced along the surface of the first conductive plate 116, and both the first wire pressing portion 131 and the second wire pressing portion 133 press the crimped section 122 of the cable 120, the length of the wire pressing portion of the cable 120 near the connection end 121 can be increased without affecting the electrical connection between the connection end 121 and the first conductive plate 116. In this way, the connection end 121 can be effectively prevented from loosening due to long-term vibration or the swing of the base 111, thereby improving the connection stability between the cable 120 and the first conductive plate 116 and thus improving the service life of the entire linear actuator 100.

[0054] In one embodiment, the second crimping portion 133 is located between the first crimping portion 131 and the connecting end 121, and the crimping segment 122 is bent between the first crimping portion 131 and the connecting end 121. Thus, the bent crimping segment 122 is pressed against the second crimping portion 133. Compared to a straight crimping segment 122, the bent crimping segment 122 can engage with the second crimping portion 133 in its straight line direction, preventing the crimping segment 122 from detaching from the second crimping portion 133 in its extension direction. This effectively improves the electrical connection stability between the connecting end 121 and the first conductive plate 116.

[0055] Furthermore, please refer to again Figures 1 to 5 , Figure 11 and Figure 12 The crimping section 122 includes a first bending section 123 and a second bending section 124. The two ends of the first bending section 123 are connected to the connecting end 121 and the second bending section 124, respectively. The bending directions of the first bending section 123 and the second bending section 124 are opposite. The first bending section 123 passes through and is crimped onto the first crimping part 131, and the second bending section 124 passes through and is crimped onto the second crimping part 133.

[0056] In this embodiment, to simplify the structure, the connecting end 121 and the first bent segment 123 can be smoothly connected. By making the crimping segment 122 include a first bent segment 123 and a second bent segment 124 with opposite bending directions, and the first pressing part 131 and the second pressing part 133 respectively pressing the first bent segment 123 and the second bent segment 124, compared to the crimping segment 122 being a straight segment as a whole, the first pressing part 131 and the second pressing part 133 can respectively hold the crimping segment 122 on both sides in the bending direction, preventing the crimping segment 122 from detaching from the first pressing part 131 and the second pressing part 133 in its extension direction. In this way, the electrical connection stability between the connecting end 121 and the first conductive plate 116 can be further improved, and the connecting end 121 can be prevented from loosening due to long-term swinging or vibration of the crimping segment 122 relative to the connecting end 121. The first bent segment 123 and the second bent segment 124 can be bent in a preset direction or in a direction that forms an angle with the preset direction, and no specific limitation is made here.

[0057] Furthermore, the first bending segment 123 bends toward one side of the preset direction, the second bending segment 124 bends toward the other side of the preset direction, and the first pressing part 131 and the second pressing part 133 are arranged at intervals in the first direction; the first direction, the preset direction, and the thickness direction of the base 111 are arranged perpendicularly to each other.

[0058] In this embodiment, 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 111 is the up-down direction. Since the driving component 114 drives the motion component 115 to reciprocate along the preset direction through electromagnetic action, the actuator body 110 as a whole will generate reciprocating vibration along the preset direction. This causes the first bending segment 123 and the second bending segment 124 to bend in the preset direction, and the first pressing part 131 and the second pressing part 133 are arranged at intervals in the first direction. Thus, the first pressing part 131 and the second pressing part 133 can press the first bending segment 123 and the second bending segment 124 at the upper limit in the preset direction, which can effectively prevent the entire pressing segment 122 from translating in the preset direction, thereby further improving the stability of the connection point between the connection end 121 of the cable 120 and the first conductive plate 116.

[0059] Furthermore, such as Figures 1 to 12 As shown, there are two cables 120. The connecting ends 121 of the two cables 120 are positioned opposite each other and spaced apart in a preset direction. The first bending sections 123 of the two cables 120 are bent relative to each other in the preset direction, and the second bending sections 124 of the two cables 120 are bent away from each other in the preset direction. The two cables 120 are a positive conductor and a negative conductor, respectively. By positioning the first bending sections 123 of the two cables 120 opposite each other in the preset direction, the connecting ends 121 of the two cables 120 are brought close together, allowing them to connect to the same first conductive plate 116. By positioning the second bending sections 124 of the two cables 120 away from each other in the preset direction, the second bending sections 124 of the two cables 120 extend away from each other to both ends of the base 111 in the preset direction, increasing the extension length of the cables 120 and preventing stress fatigue of the cables 120 due to long-term vibration.

[0060] Further, please refer to Figures 2 to 5 , Figures 11 to 14 The base 111 is provided with two first pressing parts 131 spaced apart in a preset direction. The first bending sections 123 of the two cables 120 are respectively pressed onto the two first pressing parts 131; the second bending sections 124 of the two cables 120 are pressed onto the same second pressing part 133.

[0061] In this embodiment, the second wire pressing part 133 may specifically include one or two wire pressing holes, such that the second bent sections 124 of the two cables 120 are both passed through the same wire pressing hole or are respectively passed through two wire pressing holes. The second wire pressing part 133 is used to perform initial pressing and positioning of the cables 120, and then the first wire pressing part 131 performs secondary pressing and limiting of the cables 120 to ensure the stability of the crimped section 122 on the first conductive plate 116. Optionally, the second wire pressing part 133 has wire pressing holes for the two second bent sections 124 to pass through. By providing wire pressing holes, the two second bent sections 124 can be limited simultaneously on the surface of the first conductive plate 116, thereby improving the pressing effect of the second wire pressing part 133 on the two cables 120.

[0062] Optionally, the two first wire pressing portions 131 have wire-locking grooves 132 with their openings facing away from each other in a preset direction; the first bent sections 123 of the two cables 120 are respectively locked into the two wire-locking grooves 132. Since the first bent sections 123 of the two cables 120 are arranged opposite each other and the second bent sections 124 are arranged facing away from each other, the openings of the wire-locking grooves 132 of the two first wire pressing portions 131 are facing away from each other, which makes it easier for the first bent sections 123 to be locked into the first wire pressing portions 131. Furthermore, by locking the first bent sections 123 of the two cables 120 into the wire-locking grooves 132, the clamping tightness of the cables 120 can be further improved while facilitating assembly.

[0063] Furthermore, the distance between the first bent sections 123 of the two cables 120 at the two first pressing portions 131 is greater than the distance between the second bent sections 124 of the two cables 120 at the second pressing portions 133 and the distance between the two connecting ends 121.

[0064] It is understood that the cable 120 is S-shaped from the end of the connecting end 121 to the second bending section 124. By making the distance between the first bending sections 123 of the two cables 120 at the two first pressing parts 131 greater than the distance between the second bending sections 124 of the two cables 120 at the second pressing part 133 and the distance between the two connecting ends 121, both the first pressing part 131 and the second pressing part 133 can be pressed together at the bending inflection point of the cable 120, thereby improving the pressing reliability of the first pressing part 131 and the second pressing part 133 on the cable 120.

[0065] Furthermore, such as Figure 4 and Figure 5 As shown, the second wire pressing part 133 is provided with two wire pressing holes, and the second bending sections 124 of the two cables 120 are respectively passed through the two wire pressing holes. The second wire pressing part 133 is also provided with a partition 134 located between the two wire pressing holes.

[0066] In this embodiment, the second wire pressing part 133 is provided with a wire pressing hole. The wall of the wire pressing hole can limit the second bending section 124 of the two cables 120 in a preset direction, preventing the cables 120 from shifting excessively in the preset direction. By pressing the second bending section 124 of both cables 120 onto the same second wire pressing part 133, the number of second wire pressing parts 133 can be reduced, and the distance between the second bending section 124 of the two cables 120 can be smaller, resulting in a more compact overall structure.

[0067] The partition 134 can be provided on the side of the second wire clamping portion 133 facing and / or away from the first wire clamping portion 131. By providing the partition 134, the second bent sections 124 of the two cables 120 can be isolated to avoid noise, vibration, or short circuits caused by long-term collision. Optionally, the partition 134 located between the two wire clamping holes and the two second bent sections 124 can be provided on the side of the second wire clamping portion 133 away from the first wire clamping portion 131. It is understood that the cables 120 located between the second wire clamping portion 133 and the first wire clamping portion 131 are almost unlikely to collide with each other. However, since the cables are bent and pressed from the first wire clamping portion 131 to the second wire clamping portion 133, the distance between the second bent sections 124 of the two cables 120 on the side of the second wire clamping portion 133 away from the first wire clamping portion 131 is relatively short, and they are prone to collision. Therefore, by placing the partition 134 on the side of the second pressure section 133 away from the first pressure section 131, it can more effectively prevent the second bending section 124 of the two cables 120 from colliding near the second pressure section 133.

[0068] In one embodiment, please refer to Figures 1 to 8 The actuator body 110 is provided in two sets, with the two actuator bodies 110 arranged side by side and spaced apart. The cable 120 of one actuator body 110 is defined as the first cable 127, and the base 111 of the actuator body 110 is defined as the first base 112. The cable 120 of the other actuator body 110 is defined as the second cable 128, and the base 111 of the actuator body 110 is defined as the second base 113. In the side-by-side direction of the two actuator bodies 110, the connection end 121 of the first cable 127 and the connection end 121 of the second cable 128 are adjacent to each other and arranged opposite to each other.

[0069] In this embodiment, by setting two sets of actuator bodies 110, the electric shaver using the linear actuator 100 is driven by dual motors, which can effectively improve cutting efficiency. By arranging the connection end 121 of the first cable 127 and the connection end 121 of the second cable 128 opposite to each other, the electrical connection points between the first cable 127, the second cable 128 and the first conductive plate 116 are concentrated, which makes it easier for the operator to perform soldering operations. In addition, arranging the connection end 121 of the first cable 127 and the connection end 121 of the second cable 128 opposite to each other, that is, the connection end 121 of the first cable 127 and the connection end 121 of the second cable 128 are located inside the two bases 111, so that the second bending section 124 and the turning section 125 of the cable 120 can extend outward, which is more conducive to the arrangement of the cable 120.

[0070] In one embodiment, such as Figures 6 to 11 As shown, cable 120 has a turning section 125 and an extension section 126. The two ends of the turning section 125 are smoothly connected to the extension section 126 and the end of the second bending section 124 away from the connection end 121, respectively. The turning sections 125 of the first cable 127 and the second cable 128 are bent relative to each other in the parallel direction. The extension sections 126 of the first cable 127 and the second cable 128 both extend in the parallel direction.

[0071] The linear actuator 100 also includes a second conductive plate 140, which is disposed on the side of the wire pressing structure 130 away from the drive assembly 114. The extension 126 of the first cable 127 extends to the corresponding second base 113 and is electrically connected to the second conductive plate 140. The extension 126 of the second cable 128 extends to the corresponding first base 112 and is electrically connected to the second conductive plate 140.

[0072] In this embodiment, by setting the turning section 125, the extension length of the cable 120 can be increased, buffering and absorbing vibration, and avoiding stress fatigue of the cable 120 caused by long-term vibration. The turning sections 125 of the first cable 127 and the second cable 128 are relatively bent in the parallel direction, increasing the length of the cable 120 while reducing the space occupied in the length direction, thus making the cable 120 more compact overall. The second conductive plate 140 and the wire clamping structure 130 can be fixedly connected by screws, welding, or other methods. The second conductive plate 140 is used for electrical connection with the power supply. By using the second conductive plate 140 to achieve electrical connection between multiple cables 120 and the power supply, the alignment difficulty of the cables 120 can be greatly reduced, improving the convenience of wiring operations. The second conductive plate 140 can specifically be a circuit board with conductive lines. The shape of the second conductive plate 140 can also be selected and designed according to actual needs; for example, the first conductive plate 116 can be designed as a long strip, rectangle, etc. The extension section 126 and the second conductive plate 140 can be electrically connected by welding, plugging in electrical connectors, or other methods.

[0073] By extending the extension 126 of the first cable 127 to the corresponding second base 113 and electrically connecting it to the second conductive plate 140, and extending the extension 126 of the second cable 128 to the corresponding first base 112 and electrically connecting it to the second conductive plate 140, the extension lengths of the first cable 127 and the second cable 128 can be increased, which can buffer and absorb vibration, avoid stress concentration and fatigue fracture of the cable 120, and increase the stability of the connection between the extension 126 and the second conductive plate 140.

[0074] Since the drive assembly 114 drives the motion assembly 115 to reciprocate along a preset direction via electromagnetic action, the actuator body 110 as a whole will generate reciprocating vibration along the preset direction. This causes the extension section 126 to extend at least at its end along a parallel direction and be electrically connected to the second conductive plate 140, effectively preventing the connection point between the extension section 126 and the second conductive plate 140 from loosening. Furthermore, by ensuring that at least the end of the extension section 126 extends along a parallel direction, and the crimping section 122 also extends approximately along a parallel direction, the entire cable 120 can be bent, resulting in a more compact structure and smaller footprint.

[0075] Furthermore, the second conductive plate 140 has a first plate surface 141 facing the drive assembly 114 and a second plate surface 142 facing away from the drive assembly 114. An extension 126 of the first cable 127 is electrically connected to the first plate surface 141, and an extension 126 of the second cable 128 is electrically connected to the second plate surface 142. A conductive element 150 may protrude from the second plate surface 142 of the second conductive plate 140.

[0076] In this embodiment, the conductive element 150 is used for electrical connection with the power supply. Specifically, the conductive element 150 can be a conductive post, a conductive shoe, etc. If the first cable 127 and the second cable 128 are both electrically connected to the first plate surface 141 of the second conductive plate 140, the central space of the first plate surface 141 needs to be occupied. Thus, in order to facilitate wiring, the distance between the first plate surface 141 and the base 111 needs to be large, which will increase the space occupied by multiple cables 120 in the height direction of the linear actuator 100, which is not conducive to the miniaturization of the linear actuator 100. If the first cable 127 and the second cable 128 are both electrically connected to the second plate surface 142 of the second conductive plate 140, the central space of the second plate surface 142 needs to be occupied. Thus, when the linear actuator 100 is assembled inside the electric shaver, other components (such as the charging component) cannot be close to the second plate surface 142, which is not conducive to reducing the height of the electric shaver.

[0077] By electrically connecting the extension 126 of the first cable 127 to the first surface 141 of the second conductive plate 140 and the extension 126 of the second cable 128 to the second surface 142 of the second conductive plate 140, compared to electrically connecting both the first cable 127 and the second cable 128 to the same surface of the second conductive plate 140, the space occupied by multiple cables 120 in the height direction of the linear actuator 100 can be reduced. This allows the linear actuator 100 to be arranged more compactly in the height direction, thereby reducing the height dimension of the linear actuator 100 and facilitating the miniaturization of the linear actuator 100.

[0078] In one embodiment, please refer again Figures 6 to 11 The linear actuator 100 also includes a bracket and a wire fixing structure 170. The first base 112 and the second base 113 are elastically suspended in the bracket. The wire fixing structure 170 includes a connecting plate 171 and wire fixing devices 172 disposed at both ends of the connecting plate 171 in a preset direction. The connecting plate 171 is fixedly connected to the bracket and disposed between the first conductive plate 116 and the second conductive plate 140. The second conductive plate 140 is fixed to the connecting plate 171. The two ends of the wire fixing device 172 protrude from the first plate surface 141 and the second plate surface 142 respectively. The extension sections 126 of the first cable 127 and the second cable 128 are pressed together with the wire fixing device 172.

[0079] In this embodiment, the two ends of the first base 112 and the second base 113 in a preset direction can be elastically suspended in the bracket by elastic connectors. By making the first base 112 and the second base 113 elastically suspended in the bracket, when the motion component 115 reciprocates in the preset direction, it will push the drive component 114 and the base 111 to move in the opposite direction relative to the bracket. Therefore, the drive component 114 and the motion component 115 can move relative to each other in the preset direction, which can buffer the vibration of the drive component 114 and the motion component 115, reduce the vibration transmitted to the bracket, and thus weaken the vibration of the linear actuator 100.

[0080] The connecting plate 171 and the bracket can be fixedly connected by screws, snap-fit, or other means. Two cable holders 172 are connected via the connecting plate 171, which is positioned between the first conductive plate 116 and the second conductive plate 140. While providing mounting for the second conductive plate 140, it also isolates the first conductive plate 116 and the second conductive plate 140. Since the cable holder structure 170 is generally made of insulating material, the connecting plate 171 also insulates the first conductive plate 116 and the second conductive plate 140, preventing the connection ends 121 of the first cable 127 and the second cable 128 from contacting the second conductive plate 140 and causing a short circuit. This reduces safety hazards and improves the safety and reliability of the product.

[0081] The cable holder 172 can have many structures. For example, it can be a wire clamping block with through holes for the cable 120 to pass through, thereby pressing the cable 120 onto the surface of the second conductive plate 140. The specific structure of the cable holder 172 can be selected and designed according to actual needs, and no specific limitation is made here. The two ends of the cable holder 172 protrude from the first plate surface 141 and the second plate surface 142 respectively, forming the first cable-fixing portion and the second cable-fixing portion. The first and second wire-fixing parts are used to pre-position and limit the extension sections 126 of the first cable 127 and the second cable 128, respectively, so that the extension sections 126 of the first cable 127 and the second cable 128 are kept in a position close to the electrical connection with the second conductive plate 140. This prevents the first cable 127 and the second cable 128 from shifting during welding and facilitates the electrical connection operation between the first cable 127, the second cable 128 and the second conductive plate 140. At the same time, since the electrical connection ends 121 of the first cable 127 and the second cable 128 and the second conductive plate 140 are clamped by the wire-fixing device 172, the electrical connection ends 121 of the first cable 127 and the second cable 128 and the second conductive plate 140 can be kept in the connection position, thereby preventing the connection point from falling off due to long-term vibration.

[0082] This utility model also proposes an electric shaver, such as Figure 15 and Figure 16 As shown, the electric shaver includes a housing 200, a shaver head assembly 300, and a linear actuator 100. The specific structure of the linear actuator 100 is as described in the above embodiments. The linear actuator 100 is installed inside the housing 200, and the shaver head assembly 300 is connected to the motion component 115 of the linear actuator 100. Since this electric shaver adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The shape of the housing 200 can be selected and designed according to actual needs, and is not specifically limited here. The shaver head assembly 300 specifically includes a moving blade and a stationary blade covering the outside of the moving blade. The shaver head can be a long-hair shaver head or a short-hair shaver head. The motion component 115 of the linear actuator 100 is connected to the moving blade of the shaver head to drive the moving blade to reciprocate relative to the stationary blade in a preset direction to cut hair.

[0083] 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 linear actuator, characterized in that, Includes an actuator body, which includes a base, a drive assembly, a motion assembly, a first conductive plate, a cable, and a wire pressing structure; The drive component is mounted on the base, and the drive component drives the motion component to reciprocate along a preset direction through electromagnetic action; The first conductive plate and the pressure wire structure are fixed to the side of the base away from the driving component, and the coil of the driving component is electrically connected to the first conductive plate; the pressure wire structure includes a first pressure wire portion and a second pressure wire portion, and the first pressure wire portion and the second pressure wire portion are arranged at intervals along the surface of the first conductive plate. The cable includes a connecting end and a crimping section connected to each other. The connecting end is electrically connected to the first conductive plate, and the crimping section passes through the first crimping part and the second crimping part to be crimped onto the first conductive plate.

2. The linear actuator as claimed in claim 1, characterized in that, The second crimping portion is located between the first crimping portion and the connecting end, and the crimping section is bent between the first crimping portion and the connecting end.

3. The linear actuator as claimed in claim 1, characterized in that, The crimping section includes a first bending section and a second bending section. The two ends of the first bending section are respectively connected to the connecting end and the second bending section. The bending directions of the first bending section and the second bending section are opposite. The first bending section passes through and is crimped onto the first crimping part, and the second bending section passes through and is crimped onto the second crimping part.

4. The linear actuator as described in claim 3, characterized in that, The first bending segment bends toward one side of the preset direction, and the second bending segment bends toward the other side of the preset direction. The first pressure line portion and the second pressure line portion are arranged at intervals in the first direction. The first direction, the preset direction, and the thickness direction of the base are arranged perpendicularly to each other.

5. The linear actuator as claimed in claim 4, characterized in that, The cable has two wires, and the connection ends of the two cables are opposite to each other and spaced apart in the preset direction. The first bending sections of the two cables are bent relative to each other in the preset direction, and the second bending sections of the two cables are bent opposite to each other in the preset direction.

6. The linear actuator as claimed in claim 5, characterized in that, The base is provided with two first pressure points spaced apart in the preset direction, and the first bent sections of the two cables are respectively pressed onto the two first pressure points; the second bent sections of the two cables are pressed onto the same second pressure point.

7. The linear actuator as claimed in claim 5, characterized in that, The distance between the first bent sections of the two cables at the two first pressure points is greater than the distance between the second bent sections of the two cables at the second pressure points and the distance between the two connecting ends.

8. The linear actuator as claimed in claim 6, characterized in that, The two first wire pressing portions have wire clamping grooves with openings facing away from each other in a preset direction, and the first bent sections of the two cables are respectively clamped in the two wire clamping grooves; and / or, the second wire pressing portion has wire pressing holes for the two second bent sections to pass through.

9. The linear actuator as claimed in claim 6, characterized in that, The second wire pressing part is provided with two wire pressing holes, and the second bent sections of the two cables are respectively passed through the two wire pressing holes. The second wire pressing part is also provided with a partition plate located between the two wire pressing holes.

10. The linear actuator as claimed in any one of claims 3 to 9, characterized in that, The actuator body is provided in two sets, and the two actuator bodies are arranged side by side and spaced apart. The cable of one actuator body is defined as the first cable and the base of the actuator body is defined as the first base. The cable of the other actuator body is defined as the second cable and the base of the actuator body is defined as the second base. In the parallel direction of the two actuator bodies, the connection end of the first cable is positioned opposite to the connection end of the second cable.

11. The linear actuator as claimed in claim 10, characterized in that, The cable further includes a turning section and an extension section, the two ends of the turning section being smoothly connected to the extension section and the end of the second bending section away from the connecting end, respectively; the turning sections of the first cable and the second cable are bent relative to each other in the parallel direction, and the extension sections of the first cable and the second cable both extend in the parallel direction; The linear actuator further includes a second conductive plate disposed on the side of the wire pressing structure away from the drive assembly. The second conductive plate has a first plate surface facing the drive assembly and a second plate surface away from the drive assembly. An extension of the first cable is electrically connected to the first plate surface, and an extension of the second cable is electrically connected to the second plate surface.

12. An electric shaver, characterized in that, It includes a housing, a cutter head assembly, and a linear actuator as described in any one of claims 1 to 11, wherein the linear actuator is mounted within the housing, and the cutter head assembly is connected to the motion component of the linear actuator.

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