CN217789441U - Linear actuator - Google Patents

Abstract

The utility model discloses a linear actuator, comprising a main body, the upper end of main part is provided with the tail-hood, the preceding lateral wall center department of tail-hood is provided with the connection shell, the rear end fixed connection of connection shell is on the preceding lateral wall of tail-hood, the lower terminal surface center of tail-hood is provided with sensor PCB board by rear side department, the rear side of sensor PCB board is provided with a plurality of elastic clamp, and is a plurality of the rear end fixed connection respectively of elastic clamp is on the inside wall of tail-hood, and is a plurality of the front end fixed connection respectively of elastic clamp has the flake terminal, the inside of connection shell is provided with the motor terminal, motor terminal and sensor PCB board electric connection, the lower terminal surface center department of stating the main part is provided with the output shaft, the lower terminal surface of main part is run through to the upper end of output shaft. The utility model discloses can effectively prevent the oxidation of metal, make signal transmission steady to make the durability of this subassembly better.

Description

Linear actuator

Technical Field

The utility model relates to a drive arrangement field especially relates to a linear actuator.

Background

A linear actuator is an actuator that creates a linear motion, as opposed to a conventional circular motion motor. Linear actuators are used in machine tools and industrial machinery, computer peripherals (such as disk drives and printers), valves and dampers, and many other places where linear motion is required. Hydraulic or pneumatic cylinders inherently produce linear motion. Many other mechanisms are used to generate linear motion from a rotating motor.

The prior patent (publication number: CN 202531528U) discloses a linear actuator, which aims to provide a linear actuator with a position sensing device. This linear actuator, including the cylinder, but be equipped with the piston rod that both ends stretch out in this cylinder, the both ends of piston rod all are connected with the fixed plate that is used for installing the load additional, are connected with the horizontal pole between two fixed plates, are equipped with inductive switch on the horizontal pole, be equipped with the sensor that is used for sensing inductive switch on the cylinder. The utility model has the advantages that: when the piston rod moves to the position of the magnetic induction sensor in the motion process, the magnet can be sensed by the magnetic induction sensor and sends out a signal, so that the problem of detecting the position of the piston rod of the linear actuator is solved, and the linear actuator is suitable for popularization and use. However, the utility model discloses a still have some problems in-service use, sensor pcb board and metal terminal's assembly, main connected mode are the soldering, and assembly process is complicated, and equipment investment is big. A linear actuator is proposed for this purpose.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a linear actuator.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a linear actuator, includes the main part, the upper end of main part is provided with the tail-hood, the preceding lateral wall center department of tail-hood is provided with the connection shell, the rear end fixed connection of connection shell is on the preceding lateral wall of tail-hood, the lower terminal surface center of tail-hood leans on rear side department to be provided with sensor PCB board, the rear side of sensor PCB board is provided with a plurality of elasticity and presss from both sides, and is a plurality of the rear end of elasticity presss from both sides is fixed connection respectively on the inside wall of tail-hood, and is a plurality of the front end of elasticity presss from both sides is fixed connection fisheye terminal respectively, the inside of connection shell is provided with the motor terminal.

As a further description of the above technical solution:

the motor terminal is electrically connected with the sensor PCB.

As a further description of the above technical solution:

an output shaft is arranged in the center of the lower end face of the main body, and the upper end of the output shaft penetrates through the lower end face of the main body.

As a further description of the above technical solution:

the lower end of the tail cover is detachably connected with the upper end of the main body.

As a further description of the above technical solution:

the connecting shell and the tail cover are formed by injection molding.

As a further description of the above technical solution:

the sensor PCB is detachably connected with the fisheye terminal.

As a further description of the above technical solution:

the whole body of the main body is a stepped cylinder.

The utility model discloses following beneficial effect has:

the utility model discloses with current contrast that sets up, be connected sensor PCB board and motor terminal through the flake terminal, wherein sensor PCB board and flake terminal adopt disect insertion's mode, utilize the elasticity of flake terminal and sensor PCB board to realize reliable being connected, fixed connection is realized with the elastic clamp to the other end of flake terminal, for further reinforcing this partial reliability and signal transmission's stability, the mode that adopts the pouring glue is fixed with the three, glue after the while is fixed can completely cut off metal terminal and air, can effectively prevent the oxidation of metal, make signal transmission steady, thereby make the durability of this subassembly better.

Drawings

Fig. 1 is an isometric view of a linear actuator according to the present invention;

fig. 2 is an isometric view of a tail cover of a linear actuator according to the present invention;

fig. 3 is a side drawing and mapping view of a tail cover of a linear actuator according to the present invention;

fig. 4 is a top isometric view of a tail cap of a linear actuator according to the present invention;

fig. 5 is a top view of the tail cover of the linear actuator according to the present invention.

Illustration of the drawings:

1. a connecting shell; 2. a main body; 3. an output shaft; 4. a fisheye terminal; 5. a tail cover; 6. a sensor PCB board; 7. an elastic clip; 8. and a motor terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a linear actuator, including main part 2, the whole of main part 2 is the echelonment cylinder, the upper end of main part 2 is provided with tail-hood 5, the lower extreme of tail-hood 5 is detachable with the upper end of main part 2 and is connected, the preceding lateral wall center department of tail-hood 5 is provided with connecting shell 1, the rear end fixed connection of connecting shell 1 is on the preceding lateral wall of tail-hood 5, connecting shell 1 and tail-hood 5 adopt injection moulding, the lower terminal surface center of tail-hood 5 leans on rear side department to be provided with sensor PCB board 6, the rear side of sensor PCB board 6 is provided with a plurality of elasticity and presss from both sides 7, the rear end of a plurality of elasticity presss from both sides 7 is fixed connection respectively on the inside wall of tail-hood 5, the front end difference fixed connection of a plurality of elasticity presss from both sides 7 has flake terminal 4, the inside of connecting shell 1 is provided with motor terminal 8, be detachable connection between sensor PCB board 6 and the flake terminal 4, motor terminal 8 and the sensor PCB board 6 electric connection, the lower terminal of body 6 of flake terminal, the lower terminal center department of lower terminal of main part 2 is provided with output shaft 3, the upper end of output shaft 3 runs through the lower terminal surface of main part 2.

The working principle is as follows: the utility model relates to a linear actuator, be connected sensor PCB board 6 and motor terminal 8 through fisheye terminal 4, wherein sensor PCB board 6 and fisheye terminal 4 adopt direct inserted's mode, utilize fisheye terminal 4's elasticity and sensor PCB board 6 to realize reliable being connected, fisheye terminal 4's the other end and elasticity clamp 7 realize fixed connection, reliability and signal transmission's stability for further reinforcing this part, the mode that adopts the encapsulating glue is fixed with the three, glue after the while is fixed can completely cut off metal terminal and air, can effectively prevent the oxidation of metal, make signal transmission steady, thereby make the durability of this subassembly better.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (7)

1. A linear actuator comprising a body (2), characterized in that: the upper end of main part (2) is provided with tail-hood (5), the preceding lateral wall center department of tail-hood (5) is provided with connection shell (1), the rear end fixed connection of connection shell (1) is on the preceding lateral wall of tail-hood (5), the lower terminal surface center of tail-hood (5) leans on rear side department to be provided with sensor PCB board (6), the rear side of sensor PCB board (6) is provided with a plurality of elastic clamp (7), and is a plurality of the rear end difference fixed connection of elastic clamp (7) is on the inside wall of tail-hood (5), and is a plurality of the front end difference fixedly connected with flake terminal (4) of elastic clamp (7), the inside of connection shell (1) is provided with motor terminal (8).

2. A linear actuator as claimed in claim 1, wherein: and the motor terminal (8) is electrically connected with the sensor PCB (6).

3. A linear actuator as claimed in claim 1, wherein: an output shaft (3) is arranged in the center of the lower end face of the main body (2), and the upper end of the output shaft (3) penetrates through the lower end face of the main body (2).

4. A linear actuator as claimed in claim 1, wherein: the lower end of the tail cover (5) is detachably connected with the upper end of the main body (2).

5. A linear actuator as claimed in claim 1, wherein: the connecting shell (1) and the tail cover (5) are formed by injection molding.

6. A linear actuator as claimed in claim 1, wherein: the sensor PCB (6) is detachably connected with the fisheye terminal (4).

7. A linear actuator as claimed in claim 1, wherein: the whole body of the main body (2) is a stepped cylinder.

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