WO2018068503A1 - 一种车灯灯泡的通用型安装结构及其与灯泡的装配方法 - Google Patents

一种车灯灯泡的通用型安装结构及其与灯泡的装配方法 Download PDF

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Publication number
WO2018068503A1
WO2018068503A1 PCT/CN2017/083412 CN2017083412W WO2018068503A1 WO 2018068503 A1 WO2018068503 A1 WO 2018068503A1 CN 2017083412 W CN2017083412 W CN 2017083412W WO 2018068503 A1 WO2018068503 A1 WO 2018068503A1
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WO
WIPO (PCT)
Prior art keywords
bulb
boss
base
disposed
mounting structure
Prior art date
Application number
PCT/CN2017/083412
Other languages
English (en)
French (fr)
Inventor
周浩
李景泉
路先锋
张园
Original Assignee
武汉通畅汽车电子照明有限公司
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
Priority claimed from CN201621113271.9U external-priority patent/CN206514201U/zh
Priority claimed from CN201610886794.5A external-priority patent/CN106439686B/zh
Application filed by 武汉通畅汽车电子照明有限公司 filed Critical 武汉通畅汽车电子照明有限公司
Priority to US16/340,485 priority Critical patent/US10598326B2/en
Priority to DE112017005142.8T priority patent/DE112017005142T5/de
Publication of WO2018068503A1 publication Critical patent/WO2018068503A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/172—High-intensity discharge light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/194—Bayonet attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to an automobile lamp, in particular to a universal mounting structure of a lamp bulb and a method of assembling the same.
  • the existing discharge bulb installation structure has the following forms:
  • the discharge bulb is fixed to the reflector by means of an elastic element of the metal retaining spring, wherein the discharge bulb does not undergo a rotational movement. It is more difficult to replace the bulb with one hand.
  • the discharge bulb is fixed to the reflector by means of a rotatable ring member, wherein the discharge bulb does not undergo a rotational movement and the ring member undergoes a rotational movement. It is more difficult to replace the bulb with one hand.
  • the discharge bulb is fixed to the reflector by means of a rotatable ring member, wherein the discharge bulb undergoes a rotational movement and the ring member also undergoes a rotational movement. It is more difficult to replace the bulb with one hand.
  • the invention application No. "201110201342.6” discloses "a mounting structure and an assembly method of a D3S type lamp lamp bulb", including a lamp holder, and two semicircles are disposed at a lamp mounting position on one side thereof. And each supporting seat with a hook angle, the two supporting seats are assembled with each other through respective hook angles, and the supporting seat is further connected with the lamp holder through a lamp holder ring sleeve, and the outer ring sleeve of the lamp holder ring sleeve
  • the hoop is provided with an elastic connecting member, and the elastic connecting member is further connected with a supporting seat shell to form a supporting seat assembly.
  • the inner ring of the supporting seat of the supporting base assembly cooperates with the tail end of the D3S type bulb, and the bulb is screwed into the supporting seat. And the lamp holder.
  • the discharge bulb in this solution is fixed to the reflector by means of a ring fixed to the reflector and a movable auxiliary element entering from the outside, where the discharge bulb undergoes a rotational movement. It is more difficult to replace the bulb with one hand.
  • the invention application with the application number "201210244117.5" discloses a bulb mounting structure for an automobile lamp, comprising: a mirror base, a contact piece mounted on the mounting surface of the mirror base, and a lamp mounted in the mirror base
  • the support piece is mounted on the five rivet posts of the mirror base through five mounting holes, and the bottom surface of the contact piece is positioned on the mounting surface of the mirror base.
  • the three legs on the contact piece are non-uniformly arranged at different angles on the circumference to prevent misassembly during lamp installation and to correspond to the three open slots on the bulb.
  • the discharge bulb in this embodiment is fixed to the reflector by means of a ring fixed to the reflector and an internal movable auxiliary element, wherein the discharge bulb undergoes a rotational movement. It is easier to replace the bulb with one hand.
  • the first four installation methods have the problem of poor installation convenience.
  • the last installation method is easy to install and can replace the discharge bulb with one hand, but the versatility is not good. It is only suitable for the D5S.
  • a square-shaped discharge bulb mostly a discharge bulb has only one square notch).
  • the present invention provides a universal mounting structure of a lamp bulb and an assembly method thereof, which can improve the versatility of the mounting structure and make it suitable for various kinds of loading while ensuring the convenience of installation and disassembly of the discharge bulb.
  • the light bulb has a wide range of adjustable angles of screwing. In addition, higher radial positioning accuracy can be improved or guaranteed.
  • a general-purpose mounting structure for a lamp bulb for mounting a bulb with a bulb base comprising a contact piece (1), a mirror mounting portion (2), and a support seat (3) disposed in the mirror mounting portion, It is characterized by:
  • a semicircular pressing piece (5) is disposed on the contact piece (1),
  • a row of pressing pieces (6) are arranged on the contact piece (1) with a position opposite to the locking leg as a reference point;
  • the mirror mounting portion includes a first cylindrical hole (7), a first supporting plane (8), a second cylindrical hole (9), and a second supporting plane (10).
  • the first supporting plane is disposed between the first cylindrical hole and the second cylindrical hole, and extends from an outer diameter of the first cylindrical hole to an outer diameter of the second cylindrical hole;
  • the second support plane is extended from the outer diameter of the second cylindrical hole to the outer circumference
  • the inner wall of the second cylindrical hole is distributed with three fan-shaped bosses, which are a fan-shaped boss one (11-1), a fan-shaped boss two (11-2), and a fan-shaped boss three ( 11-3),
  • the area formed by the three sector-shaped bosses is in the shape of a waist groove
  • the contact piece (1) is disposed on the second support plane
  • the support base (3) is disposed in a waist groove formed by three sector-shaped bosses, and a support platform (12) is disposed on the support base, and the boss (12) is located at the card foot in the axial direction ( Immediately below 4), ensure that the support seat does not fall out of the mirror mounting portion;
  • a pair of axially disposed guiding surfaces (13) and two 90-degree V-shaped positioning surfaces (14) disposed in the axial direction are symmetrically disposed on the wall of the second cylindrical hole (9).
  • the left side surface of the limiting boss (15) cooperates with the side surface of the boss (12) of the support base (3) to limit the position after the light bulb is screwed in,
  • the right side surface of the sector boss 1 (11-1) cooperates with the side surface of the boss (12) of the support base (3) to limit the position after the bulb is unscrewed and to prevent reverse rotation.
  • the contact type pressing piece (16) is for providing a thrust force in a radial direction of the support seat, so that the support base performs a translational movement in the radial direction.
  • a contact piece (17) is disposed on the wall of the second cylindrical hole, between the two V-shaped positioning surfaces, and an elastic piece (18) is disposed at a direction in which the two ends of the contact piece extend toward the center of the circle.
  • the elastic piece (18) is used to push the bulb back to the initial installation position when the bulb is unscrewed.
  • a pentagon boss (19) is disposed on the support base, and the pentagon boss (19) is used to hook the mirror mounting portion when the support seat is placed in the initial mounting position to prevent the support seat. Move down to the end of the installation position;
  • elastic contact pieces (20) are uniformly disposed along the outer circumference of the contact piece (1), and the elastic contact piece (20) is used for contacting the metal casing of the back igniter after the bulb is mounted in position to improve electromagnetic compatibility.
  • the arc length corresponding to the arc length between the side surface of the fan-shaped boss one (11-1) and the limiting boss (15) is 6°-50°.
  • a universal mounting structure of a lamp bulb and a method for assembling a bulb characterized in that:
  • the bulb includes a bulb base, a flange is disposed on the bulb base, a square notch and a semi-circular notch are formed on the flange, and the bulb passes through the bulb base and the universal mounting structure Assemble as follows:
  • the bulb is sequentially connected to the support through the second cylindrical hole and the first cylindrical hole.
  • a square notch on the base flange passes through the clamping leg (4), and is matched with the boss (12) on the supporting base (3);
  • the support base (3) is rotated and translated while being driven by the radial thrust and the axial rotational force;
  • the base is rotated and rotated while being driven by the support and the rotating force applied by itself;
  • the card foot (4), the semi-circular pressing piece (5) and the pressing piece (6) form a three-point fixing to the bulb base.
  • step S4 when the bulb is rotated into position, the three bumps move to the upper surfaces of the three sector bosses;
  • the bulb when the bulb is rotated, one side of the flange is gradually rotated to the bottom of the leg 4 and the semi-circular pressing piece 5, and the screwing of the leg 4 has a clamping force on the flange, and the clamping leg is a clamping support.
  • the seat boss is replaced by a clamping flange, and the translational movement of the flange causes the other side of the flange to gradually move under the pressure-receiving sheet 6, in order to facilitate the movement under the pressure-receiving sheet, at this time, the pressing piece and the semi-circular pressing piece No or significant clamping force on the flange.
  • the three bumps are moved from the three grooves of the mirror mounting portion to the upper surface of the three sector-shaped bosses, that is, the positioning surface.
  • the bulb has an upward movement of 0.3 mm in the axial direction, and the row is opposite.
  • the pressing piece and the semi-circular pressing piece have a downward pressing motion on the flange, and a clamping force is generated at this time.
  • the area formed by the three scalloped bosses is arranged in a waist-shaped groove shape to prepare for the horizontal positioning of the support seat, and a pair of symmetry is arranged on the hole wall of the second cylindrical hole.
  • the axially deep guiding surface and the two axially deep V-shaped positioning surfaces are prepared for the horizontal positioning of the bulb base;
  • the support base and the base are fixedly moved integrally by the boss provided on the support base and the leg 4 on the contact piece 1;
  • a contact type pressing piece 16 is disposed on the wall of the second cylindrical hole opposite to the V-shaped positioning surface
  • the contact type pressing piece 16 is configured to provide an initial thrust force in the radial direction of the support base, so that the support base performs a translational movement in the radial direction, and simultaneously drives the bulb base to perform a translational movement in the radial direction;
  • a contact piece 17 is disposed between the two V-shaped positioning faces on the hole wall of the second cylindrical hole, and extends to the center of the circle at both ends of the contact piece In the direction of the elastic sheet 18, the elastic piece 18 is used for the top of the bulb to the initial installation position when the bulb is unscrewed; a pentagon boss 19 is provided on the support base, and the pentagon boss 19 is provided.
  • the elastic contact piece 20 is used for contacting the metal shell of the back igniter after the bulb is installed in place. Improve electromagnetic compatibility;
  • the universal mounting structure of the lamp bulb of the present invention and the assembling method thereof ensure high installation and disassembly convenience (one-handed installation) and improved versatility (suitable for various discharge bulbs), and
  • the screwing angle is large (guaranteeing the obvious mounting feel), and it can be adjusted freely within a certain range, and the radial mounting accuracy is improved (the axial and radial directions are directly positioned on the mirror).
  • the structure is small and can improve electromagnetic compatibility.
  • FIG. 1 is a schematic view showing the application of the mounting structure assembly of the present invention
  • FIG. 2 is a schematic exploded view of the mounting structure assembly of the present invention
  • Figure 3 is a perspective view of the mounting structure assembly of the present invention.
  • FIG. 4 is a schematic structural view of a discharge bulb of the present invention.
  • Figure 5 is a front view of the mounting structure of the present invention (without contact piece 1);
  • Figure 6 is a rear elevational view of the mounting structure assembly of the present invention.
  • Figure 7 is a front elevational view of the mounting structure assembly of the present invention.
  • FIG. 8 is a diagram showing the installation steps of the present invention.
  • Figure 9 is a schematic diagram of conventional circumferential surface positioning error analysis
  • FIG. 10 is a schematic diagram of the V-shaped positioning surface positioning error analysis in the present invention.
  • a general-purpose mounting structure of a lamp bulb as shown in FIG. 1-7 is used for mounting a bulb with a bulb base, including a contact piece (1), a mirror mounting portion (2), and a mirror mounting portion. Support seat (3) inside the department,
  • a semicircular pressing piece (5) is disposed on the contact piece (1),
  • a row of pressing pieces is extended on the contact piece (1) with a position opposite to the leg of the card as a reference point (6);
  • the mirror mounting portion includes a first cylindrical hole (7), a first supporting plane (8), a second cylindrical hole (9), and a second supporting plane (10).
  • the first supporting plane is disposed between the first cylindrical hole and the second cylindrical hole, and extends from an outer diameter of the first cylindrical hole to an outer diameter of the second cylindrical hole;
  • the second support plane is extended from the outer diameter of the second cylindrical hole to the outer circumference
  • the inner wall of the second cylindrical hole is distributed with three fan-shaped bosses, which are a fan-shaped boss one (11-1), a fan-shaped boss two (11-2), and a fan-shaped boss three ( 11-3),
  • the area formed by the three sector-shaped bosses is in the shape of a waist groove
  • the contact piece (1) is disposed on the second support plane
  • the support base (3) is disposed in a waist groove formed by three sector-shaped bosses, and a support platform (12) is disposed on the support base, and the boss (12) is located at the card foot in the axial direction ( Immediately below 4), ensure that the support seat does not fall out of the mirror mounting portion;
  • a pair of axially disposed guiding surfaces (13) and two 90-degree V-shaped positioning surfaces (14) disposed in the axial direction are symmetrically disposed on the wall of the second cylindrical hole (9).
  • a limiting boss (15) is disposed between the fan-shaped boss 1 (11-1) and the fan-shaped boss 2 (11-2), and a side of the fan-shaped boss 1 (11-1) is disposed.
  • the left side surface of the limiting boss (15) cooperates with the side surface of the boss (12) of the support base (3) to limit the position after the light bulb is screwed in,
  • the right side surface of the sector boss 1 (11-1) cooperates with the side surface of the boss (12) of the support base (3) to limit the position after the bulb is unscrewed and to prevent reverse rotation.
  • the contact type pressing piece (16) is for providing a thrust force in a radial direction of the support seat, so that the support base performs a translational movement in the radial direction.
  • a contact piece (17) is disposed on the wall of the second cylindrical hole, between the two V-shaped positioning surfaces, and an elastic piece (18) is disposed at a direction in which the two ends of the contact piece extend toward the center of the circle.
  • the elastic piece (18) is used to push the bulb back to the initial installation position when the bulb is unscrewed.
  • a pentagon boss (19) is disposed on the support base, and the pentagon boss (19) is used to hook the mirror mounting portion when the support seat is placed in the initial mounting position to prevent the support seat. Move down to the end of the installation location.
  • elastic contact pieces (20) are uniformly disposed along the outer circumference of the contact piece (1), and the elastic contact piece (20) is used for contacting the metal casing of the back igniter after the bulb is mounted in position to improve electromagnetic compatibility.
  • the arc length corresponding to the arc length between the side surface of the fan-shaped boss one (11-1) and the limiting boss (15) is 6°-50°.
  • a general-purpose mounting structure of a lamp bulb and a method of assembling a bulb as shown in FIG. 8, the bulb includes a bulb base, and a flange is disposed on the bulb base to form a flange There are square notches and semi-circular notches, and the bulb is assembled through the bulb base and the universal mounting structure as follows:
  • the bulb is sequentially connected to the support through the second cylindrical hole and the first cylindrical hole.
  • a square notch on the base flange passes through the clamping leg (4), and is matched with the boss (12) on the supporting base (3);
  • the support base (3) is rotated and translated while being driven by the radial thrust and the axial rotational force;
  • the base is rotated and rotated while being driven by the support and the rotating force applied by itself;
  • the card foot (4), the semi-circular pressing piece (5) and the pressing piece (6) form a three-point fixing to the bulb base.
  • step S4 when the bulb is rotated into position, the three bumps move to the upper surfaces of the three sector bosses;
  • the bulb when the bulb is rotated, one side of the flange is gradually rotated to the bottom of the leg 4 and the semi-circular pressing piece 5, and the screwing of the leg 4 has a clamping force on the flange, and the clamping leg is a clamping support.
  • the seat boss is replaced by a clamping flange, and the translational movement of the flange causes the other side of the flange to gradually move under the pressure-receiving sheet 6, in order to facilitate the movement under the pressure-reeling sheet, At this time, the pressure-receiving sheet and the semi-circular sheet have no or significant clamping force on the flange.
  • the three bumps are moved from the three grooves of the mirror mounting portion to the upper surface of the three sector-shaped bosses, that is, the positioning surface.
  • the bulb has an upward movement of 0.3 mm in the axial direction, and the row is opposite.
  • the pressing piece and the semi-circular pressing piece have a downward pressing motion on the flange, and a clamping force is generated at this time.
  • the installation of the discharge bulb and the mounting structure is as follows: the lamp positioning notch and the specification identification notch are aligned with the mounting pins on the contact piece 1 and the error-proof semi-circular pressing piece is directly inserted into the bottom, and then the bulb is rotated clockwise by 25°. . Since the boss on the support seat is hidden directly under the mounting pin of the contact piece 1 in the initial screw-in position, when the bulb is inserted, the boss on the support seat just snaps into the positioning notch of the bulb, and when the bulb is right-handed The support base will be rotated together until the positioning surface on the support seat contacts the positioning surface of the mounting portion to achieve the limit (limit X-axis rotation freedom).
  • the support head When the bulb is turned right, the support head gradually faces the contact type pressing piece 16, and since the contact type pressing piece 16 and the mounting portion are fixed, when the supporting seat is screwed into contact with the contact type pressing piece 16, the contact pressure is applied.
  • the piece 16 has a force on the support base to cause the light bulb to rotate from self-conversion to side translation.
  • the fitting portion of the mounting portion and the outer diameter of the bulb flange is a waist-shaped hole structure, and the two waists are guided, so that the supporting seat drives the bulb to rotate along the direction of the two waists, and then rotates until the end of the screwing position stops.
  • the screw-in position is because the contact type pressing piece 16 and the support base are designed to have an interference fit. Therefore, the contact type pressing piece 16 always has a force on the bulb to be placed on the V-shaped surface (limiting the Y/Z direction of freedom) .
  • the bottom surface of the bulb base flange is provided with three protrusions of 0.3 mm.
  • the positioning point is vacant in the groove, and a row of the tabs on the contact piece 1 and
  • the semi-circular compression piece for error prevention is 0.3 mm higher in the X negative direction with respect to the bulb flange.
  • the bulb When the bulb is screwed in, the bulb rotates and moves linearly, so that the three positioning points are drawn out of the groove and positioned on the positioning surface of the mounting portion (limit X direction, Y/Z axis rotation degree of freedom), that is, the entire bulb edge X is 0.3mm in the negative direction, and the bulb flange is moved to a row of clamping tabs, error-proof semi-circular tabs and under the mounting legs. At this time, the clamping tabs and the error-proof semi-circular tabs are pressed against the flanges.
  • the mounting feet On the upper side, the mounting feet are an interference fit, and the three functions as a fixed clamping.
  • the contact piece 17 when the bulb is in place, the contact piece 17 always has a thrust on the circumference of the bulb flange in a direction substantially opposite to the thrust direction provided by the contact tab 16, since the thrust provided by the contact tab 16 is designed to be much larger than the contact piece. 17 provides the thrust, so the direction of the resultant force is always toward the V-shaped surface to ensure reliable positioning.
  • Disassembly of the discharge bulb and the mounting structure is performed as follows. Rotate the discharge bulb counterclockwise 25 degrees to the initial screw-in position and pull the bulb out. When the bulb is reversely rotated, the contact pad 16 is gradually separated from the support, meaning that the thrust provided by the contact pad 16 is gradually reduced until it is less than the thrust provided by the contact piece 17, under the action of the thrust provided by the contact piece 17, the bulb The support seat is returned to the initial insertion position along the two waist directions. At this point, the bulb can be pulled out smoothly.
  • the bulb is inserted straight into the installation structure along the optical axis. At this time, the bulb is in the initial position of installation, the square notch of the bulb flange fits exactly with the boss 12 of the support seat, and the three positioning points on the bulb flange are installed. The inner groove of the three sector-shaped bosses. Then, the bulb is rotated clockwise at a certain angle. At this time, the bulb is still in the initial position of installation.
  • the bulb drives the support to rotate together, and the support boss 12 is gradually removed from the tab 4 of the contact piece 1, and the bulb flange is gradually moved to Under the tab 4 of the contact strip 1, the support pentagon boss 19 is just in contact with the contact tab 16, and the three locating points on the bulb flange are still in the mounting sector scallops.
  • the bulb is rotated clockwise, at this time, the support base 3 is in contact with the mounting portion limiting boss, the bulb is in the installation end position, and the bulb continues to drive the support seat to rotate together during the rotation, and the supporting seat is in the contact type pressing piece 16
  • the lower driving bulb performs a translational movement along the guiding surface of the mounting portion.
  • the elastic force of the contact piece 17 is set smaller than the elastic force of the contact type pressing piece 16, so the rotation is performed on the side.
  • the support boss 12 is completely removed from the lower leg 4, the bulb flange is completely moved to the lower leg 4, and the other side of the bulb flange is moved to a row of the pressing piece 6 opposite the leg 4
  • the three positioning points on the flange are moved from the mounting groove to the positioning surface formed by the sector bosses 11-1, 11-2, and 11-3, and the bulb is slightly raised (the height of the bump itself) and slightly at the same time
  • the leg 4 on the contact piece 1 and the pressing piece 6 are lifted up, so that the contact piece 1 fixes the downward clamping force of the bulb.
  • the bulb In the radial direction, under the combined force of the contact type pressing piece 16 and the contact piece 17, the bulb is always placed on the V-shaped positioning surface 14, thereby ensuring high radial positioning accuracy.
  • the radial positioning of the bulb was obtained by the inner diameter of the entire circumference or the inner diameter of a part of the circumference.
  • the inner diameter of the positioning circumferential surface and the flange of the bulb are gap-fitted, and the bulb may be offset in any direction, so the centering is performed.
  • the accuracy is poor.
  • the structure adopts a V-shaped surface to be positioned with the elastic contact piece, and the bulb can only be offset in one direction, and it is not necessary to enlarge the positioning circle (face) in order to facilitate the insertion of the bulb.
  • the aperture of the hole in the set circle is D (+ ⁇ D1/- ⁇ D2), and the outer diameter of the flange of the bulb is d (+ ⁇ d1/- ⁇ d2).
  • the minimum ratio of the inner diameter of the positioning circle is as shown in Fig.
  • the maximum value of the outer diameter of the bulb flange is large, and the minimum fit clearance between the two is set to X.
  • the center O of the positioning circle is used as the positioning reference (optical center of the reflecting surface), and the center O1 of the bulb flange is the center of the bulb.
  • the bulb center Due to the tolerance of the inner diameter of the positioning circle and the outer diameter of the bulb flange, and there is a minimum fit gap between the two, the bulb center
  • the relative positioning center may be offset in any direction. If the inner diameter of the positioning circle is the maximum D+ ⁇ D1, the outer diameter of the flange of the bulb is minimized by d- ⁇ d2. At this time, the distance between the positioning reference O and the center O1 of the bulb is the largest, and the maximum positioning error is
  • ⁇ error circle ⁇ D1 + ⁇ D2 + ⁇ d1 + ⁇ d2 + X
  • the aperture of the circle in which the V-shaped surface is set is D(+ ⁇ D1/- ⁇ D2), and the outer diameter of the bulb flange is d(+ ⁇ d1/- ⁇ d2), because the positioning surface of the structure is a V-shaped surface.
  • the center of the bulb is moving during installation, so there is no minimum fit clearance X between the two. Due to the tolerance of the positioning V-shaped surface and the outer diameter of the bulb flange, the center of the bulb relative to the positioning center may be offset in the downward direction of the V-shaped surface. If the V-shaped surface is minimized, the bulb flange is maximized, and the bulb center is at this time.
  • the O1 is positioned above the relative positioning center O. If the V-shaped surface is maximized, the bulb flange is minimized. At this time, the bulb center O2 is positioned below the relative positioning center O, and the connection distance O1O2 of the two extreme positions is the maximum positioning error.
  • the intersection point of the largest V-shaped surface is A, and the vertical line pointing to the center of the V-shaped surface and the bulb flange point are respectively made.
  • O1A [(d+ ⁇ d1)/2+[(D+ ⁇ D1)-(D- ⁇ D2)]/2]/sin( ⁇ /2)
  • O2A [(d- ⁇ d2)/2]/sin( ⁇ /2)
  • V-shaped surface angle ⁇ is designed to be 90 ⁇
  • the " ⁇ error circle” is larger than the " ⁇ error V” in the positioning error value, and the offset may be in any direction in the direction of the positioning offset, and the latter may only be offset in the V-shaped plane. shift.
  • the area formed by the three scalloped bosses is arranged in a waist-shaped groove shape to prepare for the horizontal positioning of the support seat, and a pair of symmetry is arranged on the hole wall of the second cylindrical hole.
  • the axially deep guiding surface and the two axially deep V-shaped positioning surfaces are prepared for the horizontal positioning of the bulb base;
  • the support base and the base are fixedly moved integrally by the boss provided on the support base and the leg 4 on the contact piece 1;
  • a contact type pressing piece 16 is disposed on the wall of the second cylindrical hole opposite to the V-shaped positioning surface
  • the contact type pressing piece 16 is configured to provide an initial thrust force in the radial direction of the support base, so that the support base performs a translational movement in the radial direction, and simultaneously drives the bulb base to perform a translational movement in the radial direction;
  • a contact piece 17 is disposed between the two V-shaped positioning faces on the hole wall of the second cylindrical hole, and extends to the center of the circle at both ends of the contact piece In the direction of the elastic sheet 18, the elastic piece 18 is used for the top of the bulb to the initial installation position when the bulb is unscrewed; a pentagon boss 19 is provided on the support base, and the pentagon boss 19 is provided.
  • 4 elastic contact pieces 20 are evenly disposed along the outer circumference of the contact piece 1, the elastic contact piece 20 is used for the bulb to be mounted in place, and the back igniter metal case Contact, improve electromagnetic compatibility;
  • the universal mounting structure of the lamp bulb of the present invention and the assembling method thereof ensure high installation and disassembly convenience (one-handed installation) and improved versatility (suitable for various discharge bulbs), and
  • the screwing angle is large (guaranteeing the obvious mounting feel), and it can be adjusted freely within a certain range, and the radial mounting accuracy is improved (the axial and radial directions are directly positioned on the mirror).
  • the structure is small and can improve electromagnetic compatibility.

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
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  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

一种车灯灯泡的通用型安装结构及其与灯泡的装配方法，所述车灯灯泡的通用型安装结构用于与灯泡基座配合安装灯泡，包括有接触片（1）、反射镜安装部（2）及设置于反射镜安装部（2）内的支撑座（3），通过将所设的零部件按装配步序与灯泡完成装配，在既保证了较高的安装拆卸便捷性，能单手安装，又改善了通用性，适用于多种放电灯泡，且旋入角度大，保证明显的安装手感，还能在一定范围内随意调整，同时提高了径向安装精度，轴向和径向都直接定位在反射镜上，结构小巧，能改善电磁兼容性。

Description

一种车灯灯泡的通用型安装结构及其与灯泡的装配方法 技术领域
本发明涉及汽车灯具，具体涉及一种车灯灯泡的通用型安装结构及其与灯泡的装配方法。
背景技术
现有的放电灯泡安装结构有如下几种形式：
放电灯泡借助于金属卡簧的弹性元件固定在反射器上，在此，放电灯泡不发生旋转运动。单手更换灯泡较困难。
放电灯泡借助于可旋转的环形件固定在反射器上，在此，放电灯泡不发生旋转运动，环形件发生旋转运动。单手更换灯泡较困难。
放电灯泡借助于可旋转的环形件固定在反射器上，在此，放电灯泡发生旋转运动，环形件也发生旋转运动。单手更换灯泡较困难。
申请号为“201110201342.6”的发明申请，公开了“一种D3S型车灯灯泡的安装结构及实施装配方法”，包括灯座，在其一侧的灯泡安装位置处设置有两个呈半圆形的且各自带有勾角的支撑座，这两个支撑座通过各自的勾角互相装配在一起，支撑座再通过一灯座环套与灯座相互连接配合，而灯座环套的外圈套箍设置有一弹性连接构件，该弹性连接构件再与一支撑座外壳连接，形成支撑座总成，支撑座总成的支撑座的内圈与D3S型灯泡的尾端相互配合，灯泡旋入支撑座及灯座。
该技术方案中的放电灯泡借助于固定在反射器上的环形件和从外部进入的可动的辅助元件固定在反射器上，在此，放电灯泡发生旋转运动。单手更换灯泡较困难。
申请号为“201210244117.5”的发明申请，公开了一种用于汽车灯具的灯泡安装结构，包括：一个反射镜底座，安装于反射镜底座安装面上的接触片，安装于反射镜底座内的灯具支撑座，所述接触片通过五个安装孔安装在反射镜底座的五个铆钉柱上，接触片底面贴于反射镜底座的安装面上定位。接触片上的三个卡脚在圆周上以不同的角度非均匀布置，以防止灯泡安装时的错装且与灯泡上三个开口槽对应。
该技术方案中的放电灯泡借助于固定在反射器上的环形件和内部的可动的辅助元件固定在反射器上，在此，放电灯泡发生旋转运动。单手更换灯泡较轻松。
前四种安装方式都存在安装便捷性欠佳的问题，最后一种安装方式虽然安装便捷，可以单手更换放电灯泡，但通用性欠佳，只适合于D5S这种安装凸缘上至少有3个方形缺口的放电灯泡(大多放电灯泡只有一个方形缺口)。
发明内容
为解决以上问题，本发明提供了一种车灯灯泡的通用型安装结构及其装配方法，其在保证放电灯泡安装拆卸便捷性的同时，改善安装结构的通用性，使其适用于多种放电灯泡，且实现旋入角度可调范围大。此外，可提高或保证有较高的径向定位精度。其技术方案具体如下：
一种车灯灯泡的通用型安装结构，用于与灯泡基座配合安装灯泡，包括有接触片(1)、反射镜安装部(2)及设置于反射镜安装部内的支撑座(3)，其特征在于：
在所述接触片(1)上设置卡脚(4)，
在所述接触片(1)上设置半圆压片(5)，
在所述接触片(1)上、以与卡脚相对的位置为基准点、向两侧延伸设置一排压片(6)；
所述反射镜安装部包括有第一圆柱孔(7)、第一支撑平面(8)、第二圆柱孔(9)及第二支撑平面(10)，
所述第一支撑平面设于第一圆柱孔与第二圆柱孔之间，由第一圆柱孔的孔外径向外周延伸至第二圆柱孔的孔内径；
所述第二支撑平面由第二圆柱孔的孔外径向外周延伸设置；
在所述的第一支撑平面上、第二圆柱孔的内壁分布三个扇形凸台，分别为扇形凸台一(11-1)、扇形凸台二(11-2)、扇形凸台三(11-3)，
所述的三个扇形凸台构成的区域呈腰型槽状；
所述接触片(1)设置于第二支撑平面上；
所述支撑座(3)设置于三个扇形凸台构成的腰型槽内，在所述支撑座上设有一凸台(12)，所述凸台(12)在轴向上位于卡脚(4)的正下方，保证支撑座不会从反射镜安装部内掉出来；
在所述第二圆柱孔(9)的孔壁上对称设置一对轴向设置的导向面(13)及沿轴向设置的两个呈90°的V型定位面(14)。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
在所述扇形凸台一(11-1)与扇形凸台二(11-2)之间、扇形凸台一(11-1)的侧 面设置一限位凸台(15)，
所述限位凸台(15)的左侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋入后的位置，
所述扇形凸台一(11-1)的右侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋出后的位置和防止反旋。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
在所述第二圆柱孔的孔壁上、V型定位面的对面设置一接触式压片(16)，
所述接触式压片(16)用于提供支撑座径向上的推力，使得支撑座在径向上作平移运动。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
在所述第二圆柱孔的孔壁上、两个V型定位面之间设置一接触片(17)，在所述接触片的两端向圆中心延伸的方向设置弹性片(18)，所述弹性片(18)用于灯泡旋出时，顶回灯泡至初始安装位置。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
在所述支撑座上设置一五边形凸台(19)，所述五边形凸台(19)用以在支撑座放入初始安装位置时、勾在反射镜安装部上，防止支撑座向下移动到终止安装位置；
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
沿所述接触片(1)的圆周外侧均匀设置4根弹性接触片(20)，所述弹性接触片(20)用于灯泡安装到位后，与背部点燃器金属外壳接触，改善电磁兼容性。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
所述扇形凸台一(11-1)的侧面与限位凸台(15)之间的弧长所对应的弧度数为6°—50°。
一种车灯灯泡的通用型安装结构与灯泡的装配方法，其特征在于：
所述灯泡包括有灯泡基座，在所述灯泡基座上设有凸缘，在所述凸缘上形成有方形缺口及半圆缺口，所述灯泡通过灯泡基座、与所述通用型安装结构按如下步骤装配：
S1：将基座凸缘上的方形缺口对准接触片(1)的卡脚(4)，
将基座凸缘上的半圆缺口对准接触片(1)上的半圆压片(5)，
所述灯泡依次通过第二圆柱孔及第一圆柱孔与支撑座对接，
所述基座凸缘上的方形缺口穿过卡脚(4)、与支撑座(3)上的凸台(12)间隙配合；
S2：旋转灯泡，所述支撑座被驱动、在径向上由扇形凸台一(11-1)向限位凸台(15) 的方向旋转；
S3：当支撑座(3)旋转到接触式压片(16)的位置时，接触式压片(16)对支撑座施加径向推力，
支撑座(3)在径向推力和轴向旋转力的驱动下边旋转边平移；
基座在支撑座的带动及本身被施加的旋转力作用下边旋转边平移；
S4：当支撑座在径向上被推入腰型槽的窄部时，支撑座同时旋转至限位凸台(15)，基座在径向上被推入V型定位面；
所述的卡脚(4)、半圆压片(5)及排压片(6)形成对灯泡基座的三点固定。
根据本发明的一种车灯灯泡的通用型安装结构与灯泡的装配方法，其特征在于：
在所述基座凸缘的底平面均匀设有3个凸点，
在步骤S4中，当灯泡旋转到位时，3个凸点运动到三个扇形凸台的上表面；
具体为：灯泡旋转时，凸缘的一侧会逐渐旋转到卡脚4和半圆压片5下面，一旋入卡脚4就已经对凸缘有夹紧力了，本来卡脚是夹紧支撑座凸台替换为夹紧凸缘了，凸缘的平移运动使得凸缘的另一侧逐渐移动到排压片6下面，为了便于移入到排压片下方，此时排压片和半圆压片对凸缘没有或明显的夹紧力。3个凸点是从反射镜安装部的3个凹槽内运动到3个扇形凸台的上表面也就是定位面，此时灯泡沿轴向有一个上移0.3mm的运动，相对的，排压片和半圆压片对凸缘有个下压的运动，此时产生夹紧力。
本发明的一种车灯灯泡的通用型安装结构及其装配方法，
首先，在造型本身上，将三个扇形凸台构成的区域设置成腰型槽状，为支撑座水平方向的运动定位作准备，在所述第二圆柱孔的孔壁上对称设置一对向轴向纵深的导向面及向轴向纵深的两个呈90°的V型定位面，为灯泡基座水平方向的运动定位作准备；
其次，通过支撑座上设置的凸台及接触片1上的卡脚4，将支撑座与基座固定为一体运动；
再次，在所述第二圆柱孔的孔壁上、V型定位面的对面设置一接触式压片16，
所述接触式压片16用于提供支撑座径向上的初始推力，使得支撑座在径向上作平移运动，同时带动灯泡基座在径向上作平移运动；
然后，为进一步完善该结构，增设辅助构件：在所述第二圆柱孔的孔壁上、两个V型定位面之间设置一接触片17，在所述接触片的两端向圆中心延伸的方向设置弹性片18，所述弹性片18用于灯泡旋出时，顶回灯泡至初始安装位置；在所述支撑座上设置一五边形凸台19，所述五边形凸台19，用以在支撑座放入初始安装位置时、勾在反射镜安装部上，防止支撑座向下移动到终止安装位置；在沿所述接触片1的圆周外侧均匀设置4根弹性接触片20，所述弹性接触片20用于灯泡安装到位后，与背部点燃器金属外壳接触， 改善电磁兼容性；
本发明的一种车灯灯泡的通用型安装结构及其装配方法，既保证了较高的安装拆卸便捷性(能单手安装)，又改善了通用性(适用于多种放电灯泡)，且旋入角度大(保证明显的安装手感)，还能在一定范围内随意调整，同时提高了径向安装精度(轴向和径向都直接定位在反射镜上)。此外，结构小巧，能改善电磁兼容性。
附图说明
图1为本发明的安装结构总成应用示意图；
图2为本发明的安装结构总成爆炸示意图；
图3为本发明的安装结构总成轴测图；
图4为本发明的放电灯泡结构示意图；
图5为本发明的安装结构主视图(无接触片1)；
图6为本发明的安装结构总成的背视图；
图7为本发明的安装结构总成主视图；
图8为本发明的安装步序图；
图9为以往圆周面定位误差分析示意图；
图10为本发明中的V型定位面定位误差分析示意图。
图中，1为接触片；2为反射镜安装部；3为支撑座；4为卡脚；5为半圆压片；6为排压片；7为第一圆柱孔；8为第一支撑平面；9为第二圆柱孔；10为第二支撑平面；11-1为扇形凸台一；11-2为扇形凸台二；11-3为扇形凸台三；12为凸台；13为导向面；14为V型定位面；15为限位凸台；16为接触式压片；17为接触片；18为弹性片；19为五边形凸台；20为弹性接触片。
具体实施方式
下面，根据说明书附图和具体实施方式对本发明的一种车灯灯泡的通用型安装结构及其与灯泡的装配方法作进一步具体说明。
如图1-7所示的一种车灯灯泡的通用型安装结构，用于与灯泡基座配合安装灯泡，包括有接触片(1)、反射镜安装部(2)及设置于反射镜安装部内的支撑座(3)，
在所述接触片(1)上设置卡脚(4)，
在所述接触片(1)上设置半圆压片(5)，
在所述接触片(1)上、以与卡脚相对的位置为基准点、向两侧延伸设置一排压片 (6)；
所述反射镜安装部包括有第一圆柱孔(7)、第一支撑平面(8)、第二圆柱孔(9)及第二支撑平面(10)，
所述第一支撑平面设于第一圆柱孔与第二圆柱孔之间，由第一圆柱孔的孔外径向外周延伸至第二圆柱孔的孔内径；
所述第二支撑平面由第二圆柱孔的孔外径向外周延伸设置；
在所述的第一支撑平面上、第二圆柱孔的内壁分布三个扇形凸台，分别为扇形凸台一(11-1)、扇形凸台二(11-2)、扇形凸台三(11-3)，
所述的三个扇形凸台构成的区域呈腰型槽状；
所述接触片(1)设置于第二支撑平面上；
所述支撑座(3)设置于三个扇形凸台构成的腰型槽内，在所述支撑座上设有一凸台(12)，所述凸台(12)在轴向上位于卡脚(4)的正下方，保证支撑座不会从反射镜安装部内掉出来；
在所述第二圆柱孔(9)的孔壁上对称设置一对轴向设置的导向面(13)及沿轴向设置的两个呈90°的V型定位面(14)。
其中，
在所述扇形凸台一(11-1)与扇形凸台二(11-2)之间、扇形凸台一(11-1)的侧面设置一限位凸台(15)，
所述限位凸台(15)的左侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋入后的位置，
所述扇形凸台一(11-1)的右侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋出后的位置和防止反旋。
其中，
在所述第二圆柱孔的孔壁上、V型定位面的对面设置一接触式压片(16)，
所述接触式压片(16)用于提供支撑座径向上的推力，使得支撑座在径向上作平移运动。
其中，
在所述第二圆柱孔的孔壁上、两个V型定位面之间设置一接触片(17)，在所述接触片的两端向圆中心延伸的方向设置弹性片(18)，所述弹性片(18)用于灯泡旋出时，顶回灯泡至初始安装位置。
其中，
在所述支撑座上设置一五边形凸台(19)，所述五边形凸台(19)用以在支撑座放入初始安装位置时、勾在反射镜安装部上，防止支撑座向下移动到终止安装位置。
其中，
沿所述接触片(1)的圆周外侧均匀设置4根弹性接触片(20)，所述弹性接触片(20)用于灯泡安装到位后，与背部点燃器金属外壳接触，改善电磁兼容性。
根据本发明的一种车灯灯泡的通用型安装结构，其特征在于：
所述扇形凸台一(11-1)的侧面与限位凸台(15)之间的弧长所对应的弧度数为6°—50°。
如图8所示的一种车灯灯泡的通用型安装结构与灯泡的装配方法，所述灯泡包括有灯泡基座，在所述灯泡基座上设有凸缘，在所述凸缘上形成有方形缺口及半圆缺口，所述灯泡通过灯泡基座、与所述通用型安装结构按如下步骤装配：
S1：将基座凸缘上的方形缺口对准接触片(1)的卡脚(4)，
将基座凸缘上的半圆缺口对准接触片(1)上的半圆压片(5)，
所述灯泡依次通过第二圆柱孔及第一圆柱孔与支撑座对接，
所述基座凸缘上的方形缺口穿过卡脚(4)、与支撑座(3)上的凸台(12)间隙配合；
S2：旋转灯泡，所述支撑座被驱动、在径向上由扇形凸台一(11-1)向限位凸台(15)的方向旋转；
S3：当支撑座(3)旋转到接触式压片(16)的位置时，接触式压片(16)对支撑座施加径向推力，
支撑座(3)在径向推力和轴向旋转力的驱动下边旋转边平移；
基座在支撑座的带动及本身被施加的旋转力作用下边旋转边平移；
S4：当支撑座在径向上被推入腰型槽的窄部时，支撑座同时旋转至限位凸台(15)，基座在径向上被推入V型定位面；
所述的卡脚(4)、半圆压片(5)及排压片(6)形成对灯泡基座的三点固定。
其中，
在所述基座凸缘的底平面均匀设有3个凸点，
在步骤S4中，当灯泡旋转到位时，3个凸点运动到三个扇形凸台的上表面；
具体为：灯泡旋转时，凸缘的一侧会逐渐旋转到卡脚4和半圆压片5下面，一旋入卡脚4就已经对凸缘有夹紧力了，本来卡脚是夹紧支撑座凸台替换为夹紧凸缘了，凸缘的平移运动使得凸缘的另一侧逐渐移动到排压片6下面，为了便于移入到排压片下方， 此时排压片和半圆压片对凸缘没有或明显的夹紧力。3个凸点是从反射镜安装部的3个凹槽内运动到3个扇形凸台的上表面也就是定位面，此时灯泡沿轴向有一个上移0.3mm的运动，相对的，排压片和半圆压片对凸缘有个下压的运动，此时产生夹紧力。
工作原理
放电灯泡与本安装结构的安装按照如下进行：将灯泡定位缺口和规格识别缺口对准接触片1上的安装卡脚和防错半圆压片直接插入到底，然后将灯泡顺时针旋转25°安装到位。由于在初始旋入位置，支撑座上的凸台藏在接触片1的安装卡脚的正下方，当灯泡插入后，支撑座上的凸台正好卡入灯泡的定位缺口内，右旋灯泡时将带动支撑座一起旋转，直到支撑座上定位面与安装部定位面接触实现限位(限制X轴旋转自由度)。
右旋灯泡时，支撑座头部逐渐顶向接触式压片16，由于接触式压片16与安装部是固定不动的，当支撑座旋到与接触式压片16接触时，接触式压片16对支撑座有一个作用力，使其带动灯泡由自转变为边平移边自转。此外，安装部与灯泡凸缘外径的配合处为腰型孔结构，两腰起导向作用，所以支撑座带动灯泡沿着两腰的方向边移动边自转，直到终止旋入位置停止，在终止旋入位置由于接触式压片16与支撑座是设计成过盈配合，因此，接触式压片16对灯泡始终有一个作用力使其顶在V型面上(限制Y/Z方向自由度)。
灯泡基座凸缘的底平面上设有3个凸起0.3mm的定位点，灯泡插入安装部初始位置时，定位点正好在凹槽内是腾空的，接触片1上的一排压片和防错用半圆压片相对灯泡凸缘在X负方向高出0.3mm。当灯泡旋入时，灯泡做着旋转和直线运动，使得3个定位点划出凹槽并定位在安装部的定位面上(限制X方向、Y/Z轴旋转自由度)，即整个灯泡沿X负方向顶起0.3mm，同时灯泡凸缘移动到一排夹紧压片、防错半圆压片和安装卡脚下方，此时，夹紧压片和防错半圆压片正好压在凸缘上，其中安装卡脚是过盈配合，三者起到固定夹紧的作用。
此外，灯泡安装到位时，接触片17对灯泡凸缘的圆周始终有个推力，方向与接触式压片16提供的推力方向基本相反，由于接触式压片16提供的推力设计成远大于接触片17提供的推力，所以合力方向还是始终向着V型面，保证定位可靠。
放电灯泡与本安装结构的拆卸如下进行。将放电灯泡逆时针旋转25度到初始旋入位置，然后拔出灯泡。当反旋灯泡时，接触式压片16与支撑座逐渐分离，意味着接触式压片16提供的推力逐渐减小直到小于接触片17提供的推力，在接触片17提供的推力作用下，灯泡带动支撑座沿两腰方向回到初始插入位置。此时可以顺利拔出灯泡。
工作过程：灯泡沿光轴方向笔直插入到安装结构内，此时灯泡处于安装初始位置，灯泡凸缘方形缺口与支撑座的凸台12正好配合，灯泡凸缘上的3个定位点处在安装部3个扇形凸台的内侧槽内。接着顺时针旋转灯泡一定角度，此时灯泡仍处于安装初始位置，旋转过程中灯泡带动支撑座一起自转，支撑座凸台12逐渐从接触片1的卡脚4下移出，灯泡凸缘逐渐移到接触片1的卡脚4下，支撑座五边形凸台19刚好与接触式压片16接触，灯泡凸缘上的3个定位点仍处在安装部扇形凹槽内。然后再顺时针旋转灯泡，此时支撑座3与安装部限位凸台接触，灯泡处于安装终止位置，旋转过程中灯泡继续带动支撑座一起旋转，同时支撑座在接触式压片16的作用力下带动灯泡沿着安装部导向面做平移运动，此时虽然灯泡同样收到接触片17的反向作用力，但接触片17的弹力设置比接触式压片16的弹力小，所以在边自转边平移的叠加运动下，支撑座凸台12完全从卡脚4下移出，灯泡凸缘完全移到卡脚4下，灯泡凸缘另一侧移到卡脚4对面的一排压片6下，凸缘上的3个定位点从安装部凹槽移到了扇形凸台11-1、11-2、11-3构成的定位面上，灯泡被略微抬起(凸点自身高度)并同时略微顶起接触片1上的卡脚4和排压片6，使接触片1对灯泡产生向下的夹紧力实现固定。径向方向，在接触式压片16和接触片17的合力下，灯泡始终被顶在V型定位面14上，从而保证较高的径向定位精度。
径向定位分析
以往灯泡径向定位是通过整个圆周面内径或部分圆周面内径定位，为了便于插入灯泡，定位圆周面内径和灯泡凸缘为间隙配合，且灯泡在任意方向都可能发生偏移，因此，定心精度较差。本结构采用V型面配合弹性接触片定位，灯泡只能在一个方向发生偏移，且不用考虑为了便于插入灯泡而特地将定位圆(面)放大。
圆周面定位误差
圆周面定位误差分析。如图9所示，设定位圆内孔孔径为D(+ΔD1/-ΔD2)，灯泡凸缘外径为d(+Δd1/-Δd2),为了便于插入灯泡，定位圆内径的最小值比灯泡凸缘外径的最大值大，两者的最小配合间隙设为X。以定位圆内孔中心O为定位基准(反射面光学中心)，灯泡凸缘中心O1为灯泡中心，由于定位圆内径和灯泡凸缘外径尺寸存在公差，且两者存在最小配合间隙，灯泡中心相对定位中心在任意方向都可能发生偏移。若定位圆内径做到最大D+ΔD1，灯泡凸缘外径做到最小d-Δd2，此时定位基准O到灯泡中心O1的距离最大，最大定位误差为
Δ误圆＝2*OO1＝2*【(D+ΔD1)-(d-Δd2)】/2＝D-d+ΔD1+Δd2，
由
X＝(D-ΔD2)-(d+Δd1)即D-d＝ΔD2+Δd1+X
得
Δ误圆＝ΔD1+ΔD2+Δd1+Δd2+X
V型面定位误差
V型面配合弹性接触片定位误差分析。如图10所示，设定位V型面所在圆的孔径为D(+ΔD1/-ΔD2)，灯泡凸缘外径为d(+Δd1/-Δd2)，由于本结构定位面为V型面，且安装过程中灯泡中心是移动的，故两者不存在最小配合间隙X。由于定位V型面和灯泡凸缘外径尺寸存在公差，灯泡中心相对定位中心在V型面上下方向可能发生偏移，若V型面做到最小，灯泡凸缘做到最大，此时灯泡中心O1相对定位中心O在上方，若V型面做到最大，灯泡凸缘做到最小，此时灯泡中心O2相对定位中心O在下方，两个极端位置连线距离O1O2为最大定位误差。
如图9所示，设最大V型面交点为A，在V型面与灯泡凸缘切点分别作指向圆心的垂线。得
O1A＝【(d+Δd1)/2+【(D+ΔD1)-(D-ΔD2)】/2】/sin(α/2)
O2A＝【(d-Δd2)/2】/sin(α/2)
Δ误V＝O1O2＝O1A-O2A＝(ΔD1+ΔD2+Δd1+Δd2)/2sin(α/2)
由于V型面角度α设计为90゜，得
Δ误
Figure PCTCN2017083412-appb-000001
两者比较可见，在定位误差数值方面“Δ误圆”大于“Δ误V”，在定位偏移方向方面，且前者在任意方向都可能发生偏移，后者只在V型面上下方向偏移。
本发明的一种车灯灯泡的通用型安装结构及其装配方法，
首先，在造型本身上，将三个扇形凸台构成的区域设置成腰型槽状，为支撑座水平方向的运动定位作准备，在所述第二圆柱孔的孔壁上对称设置一对向轴向纵深的导向面及向轴向纵深的两个呈90°的V型定位面，为灯泡基座水平方向的运动定位作准备；
其次，通过支撑座上设置的凸台及接触片1上的卡脚4，将支撑座与基座固定为一体运动；
再次，在所述第二圆柱孔的孔壁上、V型定位面的对面设置一接触式压片16，
所述接触式压片16用于提供支撑座径向上的初始推力，使得支撑座在径向上作平移运动，同时带动灯泡基座在径向上作平移运动；
然后，为进一步完善该结构，增设辅助构件：在所述第二圆柱孔的孔壁上、两个V型定位面之间设置一接触片17，在所述接触片的两端向圆中心延伸的方向设置弹性片18，所述弹性片18用于灯泡旋出时，顶回灯泡至初始安装位置；在所述支撑座上设置一五边形凸台19，所述五边形凸台19，用以提供旋入旋出的手感力；在沿所述接触片1的圆周外侧均匀设置4根弹性接触片20，所述弹性接触片20用于灯泡安装到位后，与背部点燃器金属外壳接触，改善电磁兼容性；
本发明的一种车灯灯泡的通用型安装结构及其装配方法，既保证了较高的安装拆卸便捷性(能单手安装)，又改善了通用性(适用于多种放电灯泡)，且旋入角度大(保证明显的安装手感)，还能在一定范围内随意调整，同时提高了径向安装精度(轴向和径向都直接定位在反射镜上)。此外，结构小巧，能改善电磁兼容性。

Claims (9)

  1. 一种车灯灯泡的通用型安装结构，用于与灯泡基座配合安装灯泡，包括有接触片(1)、反射镜安装部(2)及设置于反射镜安装部内的支撑座(3)，其特征在于：
    在所述接触片(1)上设置卡脚(4)，
    在所述接触片(1)上设置半圆压片(5)，
    在所述接触片(1)上、以与卡脚相对的位置为基准点、向两侧延伸设置一排压片(6)；
    所述反射镜安装部包括有第一圆柱孔(7)、第一支撑平面(8)、第二圆柱孔(9)及第二支撑平面(10)，
    所述第一支撑平面设于第一圆柱孔与第二圆柱孔之间，由第一圆柱孔的孔外径向外周延伸至第二圆柱孔的孔内径；
    所述第二支撑平面由第二圆柱孔的孔外径向外周延伸设置；
    在所述的第一支撑平面上、第二圆柱孔的内壁分布三个扇形凸台，分别为扇形凸台一(11-1)、扇形凸台二(11-2)、扇形凸台三(11-3)，
    所述的三个扇形凸台构成的区域呈腰型槽状；
    所述接触片(1)设置于第二支撑平面上；
    所述支撑座(3)设置于三个扇形凸台构成的腰型槽内，在所述支撑座上设有一凸台(12)，所述凸台(12)在轴向上位于卡脚(4)的正下方；
    在所述第二圆柱孔(9)的孔壁上对称设置一对轴向设置的导向面(13)及沿轴向设置的两个呈90°的V型定位面(14)。
  2. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    在所述扇形凸台一(11-1)与扇形凸台二(11-2)之间、扇形凸台一(11-1)的侧面设置一限位凸台(15)，
    所述限位凸台(15)的左侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋入后的位置，
    所述扇形凸台一(11-1)的右侧面与支撑座(3)的凸台(12)侧面配合用以限制灯泡旋出后的位置和防止反旋。
  3. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    在所述第二圆柱孔的孔壁上、V型定位面的对面、设置一接触式压片(16)，
    所述接触式压片(16)用于提供支撑座径向上的推力，使得支撑座在径向上作平移运动。
  4. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    在所述第二圆柱孔的孔壁上、两个V型定位面之间设置一接触片(17)，在所述接触片的两端向圆中心延伸的方向设置弹性片(18)。
  5. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    在所述支撑座上设置一五边形凸台(19)。
  6. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    沿所述接触片(1)的圆周外侧均匀设置4根弹性接触片(20)。
  7. 根据权利要求1所述的一种车灯灯泡的通用型安装结构，其特征在于：
    所述扇形凸台一(11-1)的侧面与限位凸台(15)之间的弧长所对应的弧度数为6°—50°。
  8. 基于权利要求2与3的一种车灯灯泡的通用型安装结构与灯泡的装配方法，其特征在于：
    所述灯泡包括有灯泡基座，在所述灯泡基座上设有凸缘，在所述凸缘上形成有方形缺口及半圆缺口，所述灯泡通过灯泡基座、与所述通用型安装结构按如下步骤装配：
    S1：将基座凸缘上的方形缺口对准接触片(1)的卡脚(4)，
    将基座凸缘上的半圆缺口对准接触片(1)上的半圆压片(5)，
    所述灯泡依次通过第二圆柱孔及第一圆柱孔与支撑座对接，
    所述基座凸缘上的方形缺口穿过卡脚(4)、与支撑座(3)上的凸台(12)间隙配合；
    S2：旋转灯泡，所述支撑座被驱动、在径向上由扇形凸台一(11-1)向限位凸台(15)的方向旋转；
    S3：当支撑座(3)旋转到接触式压片(16)的位置时，接触式压片(16)对支撑座施加径向推力，
    支撑座(3)在径向推力和轴向旋转力的驱动下边旋转边平移；
    基座在支撑座的带动及本身被施加的旋转力作用下边旋转边平移；
    S4：当支撑座在径向上被推入腰型槽的窄部时，支撑座同时旋转至限位凸台(15)，基座在径向上被推入V型定位面；
    所述的卡脚(4)、半圆压片(5)及排压片(6)形成对灯泡基座的三点固定。
  9. 根据权利要求8所述的一种车灯灯泡的通用型安装结构与灯泡的装配方法，其特 征在于：
    在所述基座凸缘的底平面均匀设有3个凸点，
    在步骤S4中，当灯泡旋转到位时，3个凸点运动到三个扇形凸台的上表面。
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