TWI803280B - Micro-actuator - Google Patents

Abstract

A micro-actuator is used to solve the problem that the conventional micro-actuator is difficult to lighten. The micro-actuator includes a housing with a motor and a chamber, a control element located in the chamber, and a circuit board electrically connected to the motor and the control element. The housing has at least one first joint portion. The circuit board has at least one third joint portion, and the third joint portion is combined with the first joint portion of the housing.

Description

micro actuator

The invention relates to a micro-actuator, especially a lightweight micro-actuator.

Please refer to Fig. 1, it is a kind of known microactuator 9, and this known microactuator 9 has a body 91, and this body 91 has a first chamber S1 and a second chamber S2, A motor 92 is accommodated in the first chamber S1, a control member 93 is accommodated in the second chamber S2, and the control member 93 is combined with a coupling column 94 of the body 91, and a circuit board 95 is covered in the Above the control part 93, the circuit board 95 is electrically connected to the motor 92 and the control part 93, and a cover plate 96 is combined with the body 91 to limit the motor 92 and the control part 93 from being controlled by the body 91. come out.

The above known micro-actuator 9 is usually installed in the UAV to drive and control the displacement of the UAV, and the lightweight components can help improve the flight flexibility of the UAV and increase the flight distance, and even A slight weight difference can also significantly improve the performance of the drone. However, the known microactuator 9 fixes and restricts the motor 92 and the control member 93 with the cover plate 96 in order to fix the circuit board 95 to the body 91, so that the microactuator 9 The addition of the cover plate 96 makes it difficult to reduce the weight of the known micro-actuator 9, which not only reduces the flight flexibility of the drone, but also causes rapid power consumption, resulting in a significant reduction in the flight distance.

In view of this, the known microactuator still needs to be improved.

In order to solve the above problems, an object of the present invention is to provide a micro actuator which can have a light weight.

Another object of the present invention is to provide a micro actuator which can reduce the manufacturing cost.

Directionality or similar terms used throughout the present invention, such as "front", "rear", "left", "right", "upper (top)", "lower (bottom)", "inner", "outer" , "side", etc., mainly refer to the directions of the attached drawings, and each direction or its approximate terms are only used to assist in explaining and understanding the various embodiments of the present invention, and are not intended to limit the present invention.

The elements and components described throughout the present invention use the quantifier "a" or "an" only for convenience and to provide the usual meaning of the scope of the present invention; in the present invention, it should be interpreted as including one or at least one, and singular The notion of also includes the plural unless it is obvious that it means otherwise.

Approximate terms such as "combination", "combination" or "assembly" mentioned throughout the present invention mainly include forms that can be separated without destroying the components after connection, or that the components cannot be separated after connection, etc., which are common knowledge in the art. One can be selected according to the material of the components to be connected or assembly requirements.

The micro-actuator of the present invention comprises: a case seat having a motor and a chamber, the case seat has at least one first joint part, and the first joint part is recessed on a surface forming the chamber; a control part, located in the chamber; and a circuit board, electrically connected with the motor and the control part, the circuit board has at least one third joint part, the third joint part is formed on the protrusion around the circuit board , and combined with the first joint portion of the shell base.

Accordingly, the microactuator of the present invention is directly combined with the housing seat through the circuit board, so that the microactuator of the present invention does not need to be additionally installed to fix the structure of the circuit board, not only It has the effect of reducing the weight of the micro-actuator, and can also achieve the effect of reducing the manufacturing cost of the micro-actuator. Moreover, the third joint part can penetrate into the first joint part, which has the effect of conveniently fixing the circuit board.

Wherein, the chamber can be recessed in the shell seat, the shell seat around the chamber can form a ring wall, and the circuit board can be pasted on the upper edge of the ring wall. In this way, it is convenient for the control member to be accommodated in the chamber, and the chamber can be more tightly sealed.

Wherein, the shell base can also have at least one second joint portion, and the second joint portion can be formed as a slot on the upper edge of the shell base. In this way, it has the effect of combining the circuit board and the housing firmly.

Wherein, the second combining portion and the first combining portion may be oppositely arranged. In this way, the circuit board can be combined with the shell seat through two symmetrical parts, which has the function of stable combination.

Wherein, the circuit board can also have at least one fourth joint part, and the fourth joint part can form a protrusion protruding from the periphery of the circuit board, and the fourth joint part can be used to combine with the second joint part . In this way, the fourth joint portion can be tightly fitted to the second joint portion on the upper edge of the housing base, which has the effect of making the circuit board and the housing base form a stable combination.

Wherein, the shell base can also have at least one second joint portion, and the second joint portion can form a bump protruding from the upper edge of the shell base. In this way, it has the effect of combining the circuit board and the housing firmly.

Wherein, the circuit board can also have at least one fourth combining portion, and the fourth combining portion can form a notch, and the fourth combining portion can be used for combining with the second combining portion. In this way, the fourth joint portion can be tightly fitted to the second joint portion on the upper edge of the housing base, which has the effect of making the circuit board and the housing base form a stable combination.

Wherein, the fourth joint part can be combined with the second joint part in a tightly fitting manner. In this way, it has the effect of making the circuit board and the housing form a stable combination.

Wherein, the chamber may have a combination column, and a combination portion of the control member may be combined with the combination column. In this way, the control part can be firmly arranged in the chamber, which has the effect of facilitating assembly.

〔this invention〕

1,1': shell seat

11: ring wall

12: binding column

13: The first junction

14,14': the second junction

2: Control parts

21: Contact

22: Joint

3,3': circuit board

31: The third junction

32,32': the fourth junction

M: motor

S: storage room

〔usual〕

9: Micro actuator

91: Ontology

92: motor

93: Control parts

94: binding column

95: circuit board

96: cover plate

S1: The first chamber

S2: the second chamber

[Fig. 1] A schematic diagram of the main components of a conventional microactuator.

[Fig. 2] An exploded perspective view of the first embodiment of the present invention.

[FIG. 3] An assembled front view of the first embodiment of the present invention.

[Fig. 4] A sectional view taken along line A-A in Fig. 3.

[Fig. 5] A view along the line B-B in Fig. 4.

[FIG. 6] An exploded perspective view of a second embodiment of the present invention.

[FIG. 7] A sectional view of a second embodiment of the present invention.

In order to make the above-mentioned and other purposes, features and advantages of the present invention more obvious and understandable, the preferred embodiments of the present invention are specifically cited below and described in detail in conjunction with the accompanying drawings; in addition, the same symbols are marked in different drawings are considered the same, and their descriptions will be omitted.

Please refer to Figures 2 and 3, which are the first embodiment of the microactuator of the present invention, and include a housing 1, a control part 2 and a circuit board 3, and the control part 2 is housed in the housing A chamber S of the base 1 , the circuit board 3 is located in the chamber S and combined with the housing 1 , and the circuit board 3 is electrically connected to a motor M and the control part 2 .

Please refer to Figure 2, the casing 1 has a motor M and a chamber S, the chamber S is recessed in the casing 1, so that the casing 1 around the chamber S forms a ring wall 11, the The chamber S can accommodate the control member 2 , and the chamber S can have a coupling post 12 .

The shell base 1 has at least one first joint portion 13, and the first joint portion 13 can be recessed on a surface forming the chamber S. In addition, the shell base 1 can also have at least one second joint portion 14 , the at least one second joint portion 14 can be formed in a notch on the upper edge of the housing base 1 . Preferably, the second combining portion 14 is opposite to the first combining portion 13 .

The control part 2 can be a known contact potentiometer, the control part 2 has several contacts 21 to electrically connect the circuit board 3, the control part 2 can be combined with the shell by a joint part 22 The combination column 12 of the seat 1 enables the control member 2 to be stably arranged in the chamber S. As shown in FIG.

The circuit board 3 is electrically connected with the motor M and the control part 2, the circuit board 3 is a substrate with a hard material, and the circuit board 3 has at least one third joint portion 31, the third joint portion 31 It can be combined with the first joint part 13 of the housing base 1 , and the joint system can be clamped, fitted, bonded or screwed with screws, which is not limited by the present invention. In this embodiment, the third joint portion 31 forms two protrusions protruding from the periphery of the circuit board 3, and the two third joint portions 31 can be engaged with the two first joint portions 13; and, the The circuit board 3 can also have at least one fourth joint part 32, and the fourth joint part 32 can form a protrusion protruding from the periphery of the circuit board, and the fourth joint part 32 can be connected with the second joint part 32 of the housing base 1. The coupling part 14 is coupled. In this embodiment, the fourth combining portion 32 can be combined with the second combining portion 14 in a tightly fitting manner.

Please refer to Figures 4 and 5, when assembling the microactuator of this embodiment, several wires of the motor M can be welded to the circuit board 3, so that the circuit board 3 is electrically connected to the motor M; The control part 2 is placed in the chamber S, and the joint part 22 of the control part 2 is combined with the coupling post 12 of the shell seat 1; and the plurality of contacts 21 of the control part 2 are welded to Several electrical connection ports of the circuit board 3 enable the circuit board 3 to be electrically connected to the control part 2; in addition, the two third joints 31 of the circuit board 3 are engaged with the two first joints 13, and , the fourth joint portion 32 is tightly fitted to the second joint portion 14 on the upper edge of the ring wall 11, so that the motor can be avoided from being pulled Several wires of M caused the circuit board 3 to come out. Preferably, the circuit board 3 can be attached to the upper edge of the ring wall 11 forming the chamber S, so that the chamber S has a better sealing effect.

Please refer to Figures 6 and 7, which are the second embodiment of the microactuator of the present invention. This embodiment is roughly the same as the above-mentioned first embodiment. In this embodiment, the housing 1' The second joint part 14' forms a protrusion protruding from the upper edge of the housing base 1', and the fourth joint part 32' of the circuit board 3' forms a slot, so that the fourth joint part 32 'can be combined with the second joint portion 14' in a tightly fitting manner, so that the joint strength between the circuit board 3' and the case base 1' can also be improved.

In summary, the microactuator of the present invention is directly combined with the housing base through the circuit board, so that the microactuator of the present invention does not need to be additionally installed to fix the structure of the circuit board. The effect of the weight of the micro-actuator can also achieve the effect of reducing the manufacturing cost of the micro-actuator.

Although the present invention has been disclosed by using the above-mentioned preferred embodiments, it is not intended to limit the present invention. It is still within the scope of this invention for anyone skilled in the art to make various changes and modifications relative to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall include all changes within the meaning and equivalent scope described in the appended scope of application. In addition, when the above-mentioned several embodiments can be combined, the present invention includes any combination of implementation aspects.

1: shell seat

11: ring wall

12: binding column

13: The first junction

14: The second joint

2: Control parts

21: Contact

22: Joint

3: circuit board

31: The third junction

32: The fourth junction

M: motor

S: storage room

Claims (9)

A micro-actuator, comprising: a case seat with a motor and a chamber, the case seat has at least one first joint part, and the first joint part is recessed on a surface forming the chamber; a control a component, located in the chamber; and a circuit board, electrically connected with the motor and the control part, the circuit board has at least one third joint portion formed on a protrusion around the circuit board, and Combined with the first joint part of the shell base. The microactuator according to claim 1, wherein the housing is recessed in the housing, the housing around the housing forms a ring wall, and the circuit board is attached to the upper edge of the ring wall. The microactuator according to claim 1, wherein the housing base further has at least one second joint portion, and the second joint portion is formed in a slot on the upper edge of the housing base. The microactuator according to claim 3, wherein the second joint part is opposite to the first joint part. As the microactuator of claim 3, wherein, the circuit board has at least one fourth joint part, and the fourth joint part is formed as a protrusion protruding from the periphery of the circuit board, and the fourth joint part is used for connecting with The second combining portion is combined. The microactuator according to claim 1, wherein the housing base further has at least one second joint portion, and the second joint portion forms a protrusion protruding from the upper edge of the housing base. The microactuator according to claim 6, wherein the circuit board further has at least one fourth joint part, the fourth joint part forms a slot, and the fourth joint part is used to combine with the second joint part . The microactuator according to claim 5 or 7, wherein the fourth joint part and the second joint part are combined in a tight fit. The microactuator according to claim 1, wherein the chamber has a coupling column, and a coupling portion of the control member is coupled to the coupling column.

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