CN202128133U - Linear actuator for seat - Google Patents

Linear actuator for seat Download PDF

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Publication number
CN202128133U
CN202128133U CN201120223053U CN201120223053U CN202128133U CN 202128133 U CN202128133 U CN 202128133U CN 201120223053 U CN201120223053 U CN 201120223053U CN 201120223053 U CN201120223053 U CN 201120223053U CN 202128133 U CN202128133 U CN 202128133U
Authority
CN
China
Prior art keywords
transmission mechanism
linear actuator
straight line
leading screw
line leading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201120223053U
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Chinese (zh)
Inventor
朱坚
史宗龙
徐明晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YUANTONG SEATING SYSTEM CO Ltd
Original Assignee
SHANGHAI YUANTONG SEATING SYSTEM CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI YUANTONG SEATING SYSTEM CO Ltd filed Critical SHANGHAI YUANTONG SEATING SYSTEM CO Ltd
Priority to CN201120223053U priority Critical patent/CN202128133U/en
Application granted granted Critical
Publication of CN202128133U publication Critical patent/CN202128133U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a linear actuator for a seat, which comprises a brushless direct current motor, a planetary gearbox, a transmission mechanism and a positioning sensor. An output shaft of the brushless direct current motor is connected into the planetary gearbox. The planetary gearbox is in matched connection with the transmission mechanism. A linear screw rod is driven to rotate by the transmission mechanism. A joint is arranged at one end of the linear screw rod. A screw nut is arranged at the junction of the linear screw rod and the transmission mechanism. The transmission mechanism is provided with the positioning sensor. Due to the adoption of the linear actuator, a seat skeleton can be controlled to realize functions of smooth extension, retraction and position.

Description

A kind of linear actuator that is used for seat
Technical field
The utility model relates to a kind of linear actuator, particularly relates to a kind of linear actuator that is used for aviation and railway VIP seat.
Background technology
Actuator is the device that converts instrumental action with electrical control signal to.Linear actuator is used for along straight line between two end points or towards both allocation mobile objects.Actuator can utilize pressure to carry out air driven or hydraulic-driven, and perhaps they can pass through driven by power.Power-actuated linear actuator comprises rotation motor usually and rotation motor relatively at a high speed is converted into some transmission device of low speed linear movement.This transmission device can comprise gearbox and/or screw shaft.Up to now, have a kind of widely used actuator as means such as being used to transmit workpiece, feed nut, and is driven in rotation as rotary driving force through rotary driving sources such as motor in this actuator, makes slide block displacement and transmission workpiece thus.At present, China adopts the brushless motor design manufacturing also to belong to vacancy in the linear actuator that is used for aviation and railway VIP seat, is also existing when moving fast the problem that noisiness is too high in the design for external like product.
Summary of the invention
The utility model technical problem to be solved provides a kind of linear actuator that is used for seat, realizes that to reach the control skeleton level and smooth rotation promotes to extend and contractile function.
The utility model solves the technical scheme that its technical problem adopted: a kind of linear actuator that is used for seat is provided; Comprise brshless DC motor, planetary reduction gear, transmission mechanism and alignment sensor, the output shaft of described brshless DC motor is connected in the described planetary reduction gear; Described planetary reduction gear and described transmission mechanism connect each other; Described transmission mechanism drives the rotation of straight line leading screw; Described straight line leading screw one end is provided with joint; Described straight line leading screw and transmission mechanism junction are provided with feed screw nut; Described alignment sensor is installed on the described transmission mechanism.
Described straight line leading screw adopts the structure of circular arc inner teeth gear rail.
Described brshless DC motor also links to each other with electromagnetic brake.
Described transmission mechanism is provided with manual release lever.
Described alignment sensor is potentiometer or Hall element.
Described straight line leading screw and described joint match through interface.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art has following advantage and good effect: the utility model can be controlled chair framework and realize level and smooth extension, contraction and positioning function.The straight line leading screw of the utility model adopts the structure of circular arc inner teeth gear rail, realizes economize on electricity, reduces noisiness, dispersive stress, guarantees the function of security and reliability.But the special-purpose linear actuator of the utility model extensive use aviation and railway seat, automation function is realized to seat in the fields such as automobile, office, medical treatment, health care that also may be used on.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the utility model cathetus screw structure sketch map.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The embodiment of the utility model relates to a kind of linear actuator that is used for seat, and is as shown in Figure 1, comprises brshless DC motor 1, planetary reduction gear 2, transmission mechanism 3 and alignment sensor 4.The output shaft of described brshless DC motor 1 is connected in the described planetary reduction gear 2; Described planetary reduction gear 2 connects with described transmission mechanism 3 each other; Described transmission mechanism 3 drives 5 rotations of straight line leading screw; Described straight line leading screw 5 one ends cooperatively interact through interface and joint 7, make joint 7 can be installed in an end of straight line leading screw 5, and described joint 7 joins with chair framework; Described straight line leading screw 5 is provided with feed screw nut 6 with transmission mechanism 3 junctions; Described alignment sensor 4 is installed on the described transmission mechanism 3.Described brshless DC motor 1 also links to each other with electromagnetic brake 9, thereby realizes braking control.Described transmission mechanism 3 is provided with manual release lever 8, can manually control, thereby realize level and smooth extension and the contractile function of manually promoting.
Wherein, alignment sensor is used for detection position voltage, thereby can realize positioning function according to detected position voltage.Generally can adopt potentiometer or Hall element, the product of the model that is complementary that each respective electric company produces all can.For example, the DELTRAN PT BRP-15BX REV-24VDC of U.S. LANK company.Electromagnetic brake is used for the motor skidding, can adopt the Ml15-5K of Switzerland contelec.Electromagnetic brake is used for the motor skidding, can adopt the Ml15-5K of Switzerland contelec.Straight line leading screw such as Fig. 2, it adopts circular arc inner teeth gear rail structure, guaranteed the dispersion of side direction stress is born, thus make leading screw can be safely, low wearing and tearing, extend smoothly and shrink.Joint is promoted by the straight line leading screw, is connected to the chair framework parts, its interface around the property design, guaranteed that actuator can be in certain scope, the conversion of the lateral pressure that bears.
Be not difficult to find that the utility model utilizes brshless DC motor, drive the straight line leading screw and move that the joint that the straight line leading screw drives its upper end pumps, thereby promote the chair framework parts, realize extension and contractile functions such as seat lies low, partly lies, seat is straight.But the utility model is extensive use aviation and the special-purpose rotary actuator of railway seat not only, and automation function is realized to seat in the fields such as automobile, office, medical treatment, health care that also may be used on, and is very practical.

Claims (6)

1. a linear actuator that is used for seat comprises brshless DC motor (1), planetary reduction gear (2), transmission mechanism (3) and alignment sensor (4), it is characterized in that, the output shaft of described brshless DC motor (1) is connected in the described planetary reduction gear (2); Described planetary reduction gear (2) connects with described transmission mechanism (3) each other; Described transmission mechanism (3) drives straight line leading screw (5) rotation; Described straight line leading screw (5) one ends are provided with joint (7); Described straight line leading screw (5) is provided with feed screw nut (6) with transmission mechanism (3) junction; Described alignment sensor (4) is installed on the described transmission mechanism (3).
2. the linear actuator that is used for seat according to claim 1 is characterized in that, described straight line leading screw (5) adopts the structure of circular arc inner teeth gear rail.
3. the linear actuator that is used for seat according to claim 1 is characterized in that, described brshless DC motor (1) also links to each other with electromagnetic brake (9).
4. the linear actuator that is used for seat according to claim 1 is characterized in that, described transmission mechanism (3) is provided with manual release lever (8).
5. the linear actuator that is used for seat according to claim 1 is characterized in that, described alignment sensor (4) is potentiometer or Hall element.
6. the linear actuator that is used for seat according to claim 1 is characterized in that, described straight line leading screw (5) matches through interface with described joint (7).
CN201120223053U 2011-06-28 2011-06-28 Linear actuator for seat Expired - Lifetime CN202128133U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120223053U CN202128133U (en) 2011-06-28 2011-06-28 Linear actuator for seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120223053U CN202128133U (en) 2011-06-28 2011-06-28 Linear actuator for seat

Publications (1)

Publication Number Publication Date
CN202128133U true CN202128133U (en) 2012-02-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120223053U Expired - Lifetime CN202128133U (en) 2011-06-28 2011-06-28 Linear actuator for seat

Country Status (1)

Country Link
CN (1) CN202128133U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745096A (en) * 2012-07-18 2012-10-24 无锡同捷汽车设计有限公司 Novel electric seat adjusting device
CN102951042A (en) * 2011-08-23 2013-03-06 现代自动车株式会社 Method of controlling position of seat using single hall sensor
CN109899475A (en) * 2017-12-11 2019-06-18 裕克施乐股份有限公司 Turn to reversible actuator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951042A (en) * 2011-08-23 2013-03-06 现代自动车株式会社 Method of controlling position of seat using single hall sensor
CN102951042B (en) * 2011-08-23 2016-08-03 现代自动车株式会社 Use the method that single Hall element controls vehicle seat position
CN102745096A (en) * 2012-07-18 2012-10-24 无锡同捷汽车设计有限公司 Novel electric seat adjusting device
CN109899475A (en) * 2017-12-11 2019-06-18 裕克施乐股份有限公司 Turn to reversible actuator
CN109899475B (en) * 2017-12-11 2022-07-19 裕克施乐股份有限公司 Reversible actuator

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CX01 Expiry of patent term

Granted publication date: 20120201

CX01 Expiry of patent term