KR100345575B1 - Position sensing device of door lock actuator - Google Patents

Abstract

The present invention relates to a position sensor of a door lock actuator for increasing the reliability of the operation on the door lock actuator by reducing the gap between the parts of the sensing structure to reduce the position detection distribution to determine the open and locked position of the door lock actuator, The rod guide 34 is formed with an accommodating portion 34b into which the movable terminal 36 selectively contacts one of the plurality of fixed terminals 42 via the hook 34a and the spring 35. And a rod 31 having a locking groove 31a engaged with the hook 34a and having a first and second inclined portions 50 and 52 formed at a portion engaged with the rod guide 34. )

Description

POSITION SENSING DEVICE OF DOOR LOCK ACTUATOR}

The present invention relates to a door lock actuator, and more particularly, to confirm the open and locked position of the door lock actuator door lock actuator for increasing the reliability of operation on the door lock actuator by reducing the gap between the parts of the sensing structure to reduce the position sensing dispersion Relates to the position detector.

The body constituting the exterior of the vehicle is mounted to open and close a plurality of doors so that the occupant can ride down, these windows are fitted with a window glass that allows the introduction of the outside air by raising and lowering as needed. In addition, the door needs to be locked so as not to open for safety even during parking or driving, and for this purpose, a door lock is provided. Each door is provided with a door lock switch actuator (hereinafter referred to as a door lock actuator) for the operation of the door lock, so that the remaining door locks are interlocked and automatically locked or released even if only the driver's door lock is operated.

1 is an exploded perspective view showing a configuration of a general door lock actuator, having a first opening 10a and a cover 10 having a plurality of fixing protrusions 12 formed on an edge thereof, and the first opening 10a; It consists of a main body 20 and a position sensor 30 having a plurality of fixing holes 22 to which the fixing projection 12 is inserted and fixed to the second opening 20a opposite. The main body 20 is equipped with a PCB (40) having a plurality of fixed terminals 42, the cover 10 and the main body 20 in the selective contact with one of the plurality of fixed terminals 42 is controlled The position sensor 30, which is provided with a movable terminal 36 for sending an electrical signal to the unit, is mounted to protrude. At the upper end of the position sensor 30, a hole 32 into which a link connected to the door lock is fitted is formed.

Here, a guide 24 having a guide hole 24a for guiding the longitudinal movement of the position sensor 30 is formed inside the main body 20. On the upper end of the rod 31 of the position sensor 30 is formed a position limiting portion (30a, 30b) disposed through the guide 24, the movable terminal 36 of the lower end is elastically pressurized by the spring 35 The surface of the PCB 40 is in sliding contact with the surface at all times. A terminal 44 that receives external power is attached to the substrate 40.

Next, FIG. 2 is a cross-sectional view showing a state of assembly of a conventional position sensor, wherein the position sensor 30 is largely connected to a rod 31 having a spiral portion, and that the spring 31 is hooked with the rod 31. 35 may be divided into a rod guide 34 into which the movable terminal 36 is inserted.

A locking groove 31a is formed at the tip of the rod 31, and a locking protrusion 34a is formed in the rod guide 34 to be engaged with the locking groove 31a so as not to be separated. The movable terminal 36 is inserted and fixed in the state of being elastically pressed by the spring 35 in the lower accommodating groove 34b.

The conventional position detector having such a configuration has a problem in that play is caused by a gap between the rod and the rod guide, so that the position detection of the door lock actuator is not accurate.

The present invention for solving this problem provides a position sensor of the door lock actuator to give a chamfered shape to a portion of the rod inserted into the rod guide to reduce the gap between these parts as much as possible to detect the position of the door lock actuator more accurately. There is a purpose.

1 is an exploded perspective view showing the configuration of a general door lock actuator,

2 is a cross-sectional view showing an assembled state of a conventional position sensor,

Figure 3 is a cross-sectional view showing an assembled state of the position sensor of the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: Cover 20: Body

30: position detector 31: loaded

34: Road guide 36: Operation terminal

40: PCB 50, 52: First and second slope portions

An object of the present invention as described above, in the door lock actuator is made of a cover and the main body coupled to each other and a plurality of fixed terminals are formed therein, the hook and one of the plurality of fixed terminals via a spring through a spring; A rod guide having a receiving portion for selectively inserting a movable terminal into contact with the rod guide, a locking groove engaged with the hook, and a rod having first and second inclined portions formed at a portion engaged with the rod guide; It is achieved by the position sensor of the door lock actuator, characterized in that made.

Hereinafter, with reference to the accompanying Figure 3 will be described in detail with respect to the position sensor of the door lock actuator according to a preferred embodiment of the present invention.

3 is a cross-sectional view showing an assembled state of the position sensor of the present invention. As described in FIG. 1, when the door lock switch is configured, a cover 10 having a plurality of fixing protrusions 12 formed on an edge thereof, and the fixing The protrusion 12 is composed of a main body 20 coupled to the cover 10 by a plurality of fixing holes 22 into which the protrusion 12 is inserted and fixed. The main body 20 is equipped with a PCB 40, which is provided with a plurality of fixed terminals 42. In addition, the position sensor 30 in the cover 10 and the main body 20 is provided with a movable terminal 36 which selectively contacts one of the plurality of fixed terminals 42 and transmits an electrical signal to the control unit. It is mounted to protrude. The upper end of the position sensor 30 is formed with a hole 32 through which a link connected to the door lock is fitted. In the position sensor 30 having such a configuration, the gap between the rod 31 and the rod guide 34 is maximized. In a preferred embodiment of the present invention as a method for suppressing is illustrated a method of giving a chamfered shape to the rod 31 in contact with the rod guide 34 at the time of coupling.

That is, in the configuration of the position sensor according to the present invention, a hook 34a and a receiving portion into which the movable terminal 36 selectively contacts one of the plurality of fixed terminals 42 via the spring 35 is inserted. And a rod guide 34 having a 34b formed therein, and a locking groove 31a engaged with the hook 34a, wherein the first and second inclined portions are coupled to the rod guide 34. It consists of the rod 31 in which 50 and 52 are formed.

Here, the first inclined portion 50 and the second inclined portion 52 are formed to have different angles. That is, the first inclined portion 50 is formed at an angle of approximately 45 degrees, while the second inclined portion 52 is formed at an angle of approximately 30 degrees, and these two inclined portions 50 and 52 are formed. The gap between the rod 31 and the rod guide 34 is configured to be suppressed as much as possible. Reference numeral l1 denotes the longitudinal length of the second inclined portion 52, numeral l2 denotes the distance between the rod 31 and the rod guide 34 in the assembled state, and numeral l3 denotes the second inclined portion 52. The transverse length of

When the rod 31 having such a chamfered shape is inserted into the rod guide 34, the rod 31 is slightly opened by the first and second inclined portions 50 and 52. Since the assembly is completed, the gap generated between the rod guide 34 and the rod 31 can be suppressed to the maximum.

In the preferred embodiment of the present invention described above has been exemplified a structure that minimizes the play between the rod and the rod guide by giving a chamfered shape to the rod, but those skilled in the art that various modifications are possible. I can understand. For example, instead of the rod, a chamfered shape may be provided on the rod guide side, and the angles of the first inclined portion and the second inclined portion may be the same. In addition, even if one inclined portion of each of the rod and the rod guide is provided, the effect of suppressing the gap between them can be obtained as much as possible.

According to the present invention described above, in order to minimize the gap generated between the rod guide and the rod after assembly in consideration of the gap in the hook assembly characteristics and the gap caused by the distribution of parts, the first and second inclined portions are provided on the rod. As a result, rods bearing the first and second inclined portions are assembled with the rod guides slightly opened, so that the gap generated between the rod guide and the rod is restrained to the maximum after the assembly is completed. It is possible to detect more precisely.

Claims (2)

In the door lock actuator is composed of a cover 10 and the main body 20 coupled to each other and the PCB 40 is formed with a plurality of fixed terminals 42 therein, The rod guide 34 in which the accommodating part 34b into which the hook 34a and the movable terminal 36 which selectively contact one of the said fixed terminal 42 via the spring 35 is inserted is formed. Wow, A rod 31 having a locking groove 31a engaged with the hook 34a and having a first and second inclined portions 50 and 52 formed at a portion that is engaged with the rod guide 34. Position detector of the door lock actuator, characterized in that made. The method of claim 1, The first inclined portion (50) and the second inclined portion (52), the position sensor of the door lock actuator, characterized in that inclined at different angles.