TWM613911U - Linear actuator - Google Patents

Abstract

The model provides a linear actuator, which includes a main body and a gear box structure. The main body includes a housing, a motor, a composite worm gear assembly and a screw. The housing contains the internal space. The motor is located in the inner space. The compound worm gear assembly is located in the inner space and is driven by the motor. One end of the screw is accommodated in the internal space and connected to the compound worm gear assembly. The gear box structure is detachably connected to the main body and includes a lower cover, an upper cover and a control unit. The lower cover is detachably embedded in the casing and includes a side notch and a lower notch. The upper cover slidably covers the lower cover correspondingly to form an accommodating space. The control unit is located in the accommodating space. The side notch corresponds to the compound worm gear assembly, and the lower notch corresponds to the motor. Thereby, the gear box structure of the linear actuator can be quickly and easily assembled with the main body of the linear actuator.

Description

Linear actuator

The present invention relates to a linear actuator, in particular to a linear actuator that is easy to disassemble and assemble.

The conventional linear actuator includes a motor, a worm gear assembly, an electronic control unit, and a housing. During the manufacturing and assembly process, the motor, the worm gear assembly, and the electronic control unit are all set in the housing. Therefore, the motor and the worm gear must be installed in the assembly process. The components and the electronic control unit are assembled before the shell can be encapsulated. If the circuit is abnormal and needs to be repaired, the shell must be disassembled to view the internal structure.

In view of this, the development of a linear actuator that can be quickly and easily disassembled and assembled has become the goal of the relevant industry.

Therefore, the object of the present invention is to provide a linear actuator that separates the gear box structure from the main body of the linear actuator and can be detachably connected to the main body, so that the gear box structure can be easily disassembled and assembled from the linear actuator.

According to an embodiment of the structural aspect of the present invention, a linear actuator including a main body and a gear box structure is provided. The main body includes a housing, a motor, a composite worm gear assembly and a screw. The housing contains the internal space. The motor is located in the inner space. The compound worm gear assembly is located in the inner space and is driven by the motor. One end of the screw is accommodated in the internal space and connected to the compound worm gear assembly. The gear box structure is detachably connected to the main body and includes a lower cover, an upper cover and a control unit. The lower cover is detachably embedded in the casing and includes a side notch and a lower notch. The upper cover slidably covers the lower cover correspondingly to form an accommodating space. The control unit is located in the accommodating space. The side notch corresponds to the compound worm gear assembly, and the lower notch corresponds to the motor.

Thereby, the linear actuator of the present invention can be quickly and easily assembled with the main body through the side notches and the lower notches of the gear box structure.

Other examples of the foregoing embodiment are as follows: the foregoing upper cover includes two cylindrical grooves and two screw holes. The two screw holes respectively correspond to the two cylindrical grooves, and each screw hole is respectively provided for screws to lock the gear box structure to the main body.

Other examples of the foregoing embodiment are as follows: the foregoing upper cover includes two grooves. The lower cover further includes two fasteners. The two fasteners are arranged at one end of the gap on the opposite side of the lower cover. The two fastening parts of the lower cover are respectively fastened to the two grooves of the upper cover.

Other examples of the aforementioned embodiment are as follows: the aforementioned housing further includes a composite worm gear assembly setting end, and the shape of the side notch corresponds to the shape of the composite worm gear assembly setting end.

Other examples of the aforementioned embodiment are as follows: the aforementioned housing further includes a motor setting end, and the shape of the lower notch corresponds to the shape of the motor setting end.

Other examples of the foregoing embodiment are as follows: the foregoing gear box structure is connected to the main body from the motor installation end in the horizontal direction.

Other examples of the foregoing embodiment are as follows: the foregoing control unit includes a control circuit unit and a gear set. The control circuit unit is used to drive the motor to rotate. The gear set is pivotally connected to the motor, and is linked by the motor to drive the compound worm gear assembly.

Other examples of the foregoing embodiment are as follows: the foregoing control circuit unit includes a signal output terminal and a slot. One end of the slot is electrically connected to the motor, and the other end of the slot is detachably plugged into the signal output end to electrically connect the control circuit unit to the motor.

Other examples of the foregoing embodiment are as follows: the foregoing upper cover and lower cover are connected in a vertical direction.

Other examples of the foregoing embodiment are as follows: the foregoing upper cover and lower cover are connected along a horizontal direction.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details should not be used to limit the invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be drawn in a simple schematic manner in the drawings; and repeated elements may be represented by the same number.

Please refer to FIG. 1. FIG. 1 is a perspective view of a linear actuator 10 according to an embodiment of the present invention. The linear actuator 10 includes a main body 100 and a gear box structure 200. The main body 100 includes a housing 110, a motor 120, a composite worm gear assembly 130 (marked in FIG. 2) and a screw 140. The gear box structure 200 is detachably connected to the main body 100, and includes a lower cover 210, an upper cover 220, and a control unit 230 (marked in Figure 2).

Please refer to Figure 1, Figure 2, and Figure 3. Figure 2 shows a partial exploded view of the linear actuator 10 of the embodiment in Figure 1, and Figure 3 shows the linear actuator of the embodiment in Figure 1. A schematic diagram of the upper cover 220 and the lower cover 210 of the actuator 10. The housing 110 includes an internal space 113. The motor 120 is located in the inner space 113. The compound worm gear assembly 130 is located in the inner space 113 and is driven by the motor 120. One end of the screw 140 is accommodated in the internal space 113 and is connected to the compound worm gear assembly 130. Specifically, the internal space 113 of the housing 110 can be divided into different blocks to accommodate the motor 120 and the composite worm gear assembly 130. The motor 120, the composite worm gear assembly 130 and the screw 140 are conventional and not the focus of the present invention, and the details will not be repeated.

Please refer to FIG. 3 and FIG. 4. FIG. 4 is a schematic diagram of the main body 100 and the gear box structure 200 of the embodiment shown in FIG. 1. The upper cover 220 slidably covers the lower cover 210 to form an accommodating space. The control unit 230 is located in the accommodating space. The upper cover 220 includes two cylindrical grooves 221, two screw holes 222 and two grooves 223. The lower cover 210 is detachably embedded in the housing 110 and includes a side notch 211, a lower notch 212 and two fasteners 213. The two screw holes 222 respectively correspond to the two cylindrical grooves 221, and each screw hole 222 is respectively used for screwing the gear box structure 200 to the main body 100. The two fastening members 213 are disposed at one end of the opposite side notch 211 of the lower cover 210. The two fastening members 213 are respectively fastened to the second groove 223 of the upper cover 220. In detail, in the embodiments of FIGS. 3 and 4, the upper cover 220 and the lower cover 210 can be connected along the vertical direction D1. When the upper cover 220 and the lower cover 210 are connected, the upper ends of the two fasteners 213 are respectively located in the two concaves.槽223. In other embodiments, the upper cover and the lower cover can also be connected in a horizontal direction, and the user can configure the number and shape of the grooves and fasteners according to usage requirements, and the present invention is not limited to this disclosure.

Thereby, the linear actuator 10 can be quickly and easily assembled and disassembled through the gear box structure 200 detachably connected to the main body 100.

The housing 110 further includes a composite worm gear assembly setting end 111 and a motor setting end 112. The side notch 211 of the gear box structure 200 corresponds to the compound worm gear assembly 130, the shape of the side notch 211 corresponds to the shape of the compound worm gear assembly setting end 111, the lower notch 212 corresponds to the motor 120, and the shape of the lower notch 212 corresponds to the shape of the motor setting end 112 . In other words, the composite worm gear assembly 130 is provided in the composite worm gear assembly setting end 111 of the housing 110, so the shape of the composite worm gear assembly setting end 111 corresponds to the composite worm gear assembly 130; the motor setting end 112 of the housing 110 The motor 120 is provided, so the shape of the motor setting end 112 corresponds to the motor 120. When the gear box structure 200 is combined with the main body 100, the side notch 211 is embedded in the compound worm gear assembly setting end 111; the lower notch 212 is embedded in the motor setting end 112.

Thereby, the side notch 211 and the lower notch 212 of the gear box structure 200 are detachably connected to the main body 100, so that the gear box structure 200 and the main body 100 can be assembled quickly and simply.

Please refer to FIGS. 4 and 5 together. FIG. 5 is a schematic diagram of the combination of the gear box structure 200 and the motor 120 of the linear actuator 10 in the embodiment shown in FIG. 1. The control unit 230 includes a control circuit unit 231 and a gear set 232. The control circuit unit 231 is used to drive the motor 120 to rotate. The gear set 232 is pivotally connected to the motor 120 and is linked by the motor 120 to drive the composite worm gear assembly 130. The control circuit unit 231 includes a signal output terminal 2311 and a slot 121. One end of the socket 121 is electrically connected to the motor 120. The other end of the slot 121 is detachably plugged into the signal output terminal 2311 to electrically connect the control circuit unit 231 to the motor 120. Specifically, the control signal generated by the control circuit unit 231 is output from the signal output terminal 2311, and the slot 121 is electrically connected to the motor 120 and is disposed at the motor setting terminal 112. When the gear box structure 200 is combined with the main body 100, the control signal of the control circuit unit 231 is transmitted to the motor 120 through the signal output terminal 2311 inserted in the slot 121, thereby driving the motor 120. It can be seen that the gear box structure 200 is connected to the main body 100 from the motor installation end 112 along the horizontal direction D2.

Thereby, the arrangement of the signal output terminal 2311 and the slot 121 replaces the arrangement of wires between the gear box structure 200 and the main body 100, which helps to quickly and easily disassemble the gear box structure 200 from the main body 100 of the linear actuator 10 .

In summary, the linear actuator of the present invention has the following advantages: First, the linear actuator can be quickly and easily disassembled through the gear box structure that is detachably connected to the main body; The notch and the lower notch can be detachably connected to the main body to quickly and easily assemble the gearbox structure and the main body; thirdly, the arrangement of the signal output end and the slot instead of the wire between the gearbox structure and the main body is helpful Quickly and easily disassemble and assemble the gear box structure from the main body of the linear actuator.

The present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention When the scope of the attached patent application is defined, it shall prevail.

10: Linear actuator 100: main body 110: shell 111: Worm gear assembly setting end 112: Motor setting end 113: Internal space 120: Motor 121: Slot 130: compound worm gear assembly 140: Screw 200: Gearbox structure 210: lower cover 211: Side Notch 212: lower gap 213: Fastener 220: upper cover 221: Cylindrical groove 222: screw hole 223: Groove 230: control unit 231: control circuit unit 2311: signal output terminal 232: Gear Set D1: vertical direction D2: horizontal direction

Figure 1 is a perspective view of a linear actuator according to an embodiment of the present invention; Figure 2 shows a partial exploded schematic diagram of the linear actuator of the embodiment shown in Figure 1; Fig. 3 is a schematic diagram of the upper cover and the lower cover of the linear actuator in the embodiment shown in Fig. 1; Figure 4 is a schematic diagram of the main body and gearbox structure of the embodiment shown in Figure 1; and FIG. 5 is a schematic diagram showing the combination of the gear box structure and the motor of the linear actuator in the embodiment shown in FIG. 1. FIG.

10: Linear actuator

100: main body

110: shell

120: Motor

140: Screw

200: Gearbox structure

210: lower cover

220: upper cover

Claims (10)

A linear actuator including: One main body, including: A shell containing an internal space; A motor located in the internal space; A composite worm gear assembly located in the internal space and driven by the motor; and A screw, one end of the screw is accommodated in the internal space and connected to the compound worm gear assembly; and A gear box structure, detachably connected to the main body, and containing: A lower cover, which is detachably embedded in the shell, and includes a side notch and a lower notch; An upper cover slidably corresponding to the lower cover to form an accommodating space; and A control unit located in the accommodating space; Among them, the side notch corresponds to the composite worm gear assembly; the lower notch corresponds to the motor. The linear actuator according to claim 1, wherein the upper cover includes: Two cylindrical grooves; and Two screw holes, the two screw holes respectively correspond to the two cylindrical grooves, and each screw hole is provided with a screw to lock the gear box structure to the main body. The linear actuator according to claim 1, wherein: The upper cover includes two grooves; and The lower cover further includes two fasteners, and the two fasteners are disposed at one end of the lower cover opposite to the side notch; The two fastening members of the lower cover are respectively fastened to the two grooves of the upper cover. The linear actuator according to claim 1, wherein: The casing further includes a composite worm gear assembly setting end, and the shape of the side notch corresponds to the shape of the composite worm gear assembly setting end. The linear actuator according to claim 1, wherein: The housing further includes a motor setting end, and the shape of the lower notch corresponds to the shape of the motor setting end. The linear actuator according to claim 5, wherein the gear box structure is connected to the main body from the motor setting end along a horizontal direction. The linear actuator according to claim 1, wherein the control unit includes: A control circuit unit for driving the motor to rotate; and A gear set is pivotally connected to the motor, and is linked by the motor to drive the compound worm gear assembly. The linear actuator according to claim 7, wherein the control circuit unit includes: A signal output terminal; and A slot, one end of the slot is electrically connected to the motor, and the other end of the slot is detachably plugged into the signal output end to electrically connect the control circuit unit to the motor. The linear actuator according to claim 1, wherein the upper cover and the lower cover are connected along a vertical direction. The linear actuator according to claim 1, wherein the upper cover and the lower cover are connected in a parallel direction.

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