WO2021103754A1

WO2021103754A1 - Positioning mould and assembly body, assembly method, vehicle lamp optical assembly, and vehicle lamp module

Info

Publication number: WO2021103754A1
Application number: PCT/CN2020/115654
Authority: WO
Inventors: 张韬; 陈兆禹; 陈子维; 张果; 沈进
Original assignee: 华域视觉科技(上海)有限公司
Priority date: 2019-11-29
Filing date: 2020-09-16
Publication date: 2021-06-03
Also published as: JP2022518895A; CN112873115A; CN215358194U; JP7250936B2

Abstract

A positioning mould (100a), an assembly body, an assembly method, a vehicle lamp optical assembly and a vehicle lamp module. The positioning mould (100a) comprises a positioning base (110a) and a positioning component; the positioning component is provided on a surface of the positioning base (110a), and comprises a reference positioning pin group (120a) and an assembly positioning pin group (130a), the reference positioning pin group (120a) can be fitted and inserted into a reference positioning hole group (211) provided on a reference part (210) to position the reference part (210), the assembly positioning pin group (130a) can be fitted and inserted into an assembly positioning hole group (241) provided on assembly parts (220, 230, 240) to position the assembly parts (220, 230, 240). The freedom of parts can be limited by the positioning pin groups of the positioning mould (100a); a plurality of positioning pins are all provided on the positioning mould (100a), the positioning mould (100a) serves as a unified positioning reference in the process of assembling component parts, the component parts can be positioned separately, the fitting precision between different parts is improved, and assembly precision of multiple parts is stable, such that the consistency of product quality can be effectively improved, and the quality of the whole product is not affected by the fluctuation of the size of the reference part (210).

Description

Positioning mold and assembly, assembly method, car light optical assembly, car light module

Cross-references to related applications

This application claims the rights and interests of the Chinese patent application 201911199096.8 filed on November 29, 2019. The content of this application is incorporated into this application by reference.

Technical field

The invention relates to the field of optical component manufacturing, in particular to positioning moulds and assemblies, assembling methods, vehicle light optical assemblies, and vehicle light modules.

Background technique

With the rapid development of light source technology, the light sources used in automotive lamps have also rapidly developed from halogen light sources to LED light sources. Since the LED light source is small and the brightness value is high, there are high requirements for the accuracy of the installation of the mirror, lens and other parts and the LED.

Further, in a broad sense, automotive light optics include light sources (such as LED light sources, laser light sources, etc.), primary optical components (such as reflectors, condensers, etc.), secondary optical components (such as lenses, etc.), as well as positioning and installation The assembly of these parts (such as radiators, lens holders, etc.), the mutual position and assembly accuracy of the above parts have a great influence on the optical performance of the car light product.

In actual production, the traditional positioning and assembling method of the optical parts of a car light generally is to select one component as the reference part, and the other parts to be installed in cooperation with it as the assembly parts. Take the assembly of the reflective structure as an example. A pin 1-1 is designed in advance on the heat sink 1 (reference part), and a hole 2-1 is designed on the reflector 2 (assembly part) (see Figure 1), through the pin hole The mirror 2 is positioned and installed on the radiator 1 in cooperation, as shown in FIG. 2. Through this assembly process, the freedom of movement and the freedom of rotation of the assembled parts can be restricted, and positioning can be realized.

With the continuous development of technology, traditional assembly methods are becoming more and more difficult to meet the requirements of higher and higher automotive lamp performance for the assembly accuracy of optical parts. This is because, first of all, the matching accuracy between the parts is completely determined by the position and size of the pin and the hole and the shape and size of the part. In this technical field, the manufacturing tolerance of the pin is generally ± 0.05mm, and this size is difficult to guarantee in the mass production process; secondly, there are multiple pins on the radiator as shown in Figure 1, and there are relative positions between the pins, and the general tolerance is also ±0.05mm, so It is difficult to guarantee the assembly accuracy after the reflector is installed on the radiator. If the assembly accuracy needs to be improved, it is necessary to achieve a smaller dimensional tolerance of the pins or a smaller position tolerance between the pins, but the radiator is generally For die-casting parts, it is more difficult to process high-precision pins on them. Once processing errors, the parts will be scrapped. The manufacturing and assembly costs are very high, which does not meet the production efficiency and economy. In addition, if the shape and size of the reference parts are prepared Deviations will affect the cooperation with the assembled parts, resulting in quality fluctuations in the entire product, and poor quality consistency of the same batch of products.

Summary of the invention

Based on this, it is necessary to provide a positioning mold and an assembly, an assembly method, an optical assembly of a vehicle light, and a vehicle light module for the problems of low assembly accuracy between optical components and poor consistency of assembly products.

A positioning mold, including:

Positioning base

The positioning component is arranged on the surface of the positioning base and includes a reference positioning pin group and an assembly positioning pin group. The reference positioning pin group can be inserted into the reference positioning hole group opened in the reference part to locate the reference part, The assembly positioning pin set can be inserted into the assembly positioning hole set opened in the assembly part to position the assembly part.

The above positioning mould has at least the following beneficial technical effects:

(1) The positioning mold is a machined part independent of the product. It is relatively easy to realize the operation of the positioning pin group on its surface. The processing accuracy can be very high, the tolerance can be ±0.02mm, and the position between the positioning pins The degree tolerance can also be ±0.02mm;

Because the dimensional tolerance and position tolerance of the positioning pin are reduced, the current positioning accuracy of a single part can be effectively improved during the assembly process, and the accuracy of product assembly can be improved; since the reference parts and assembly parts can be positioned separately, the coordination between different parts The accuracy is improved, and the output light shape can easily meet the requirements of laws and regulations, which is beneficial to improve product quality.

(2) It is easier to process high-precision positioning pins on the positioning mold, and the cost is relatively low. Even if there is a processing error, the cost of scrapping is small. Therefore, processing positioning pins on the positioning mold and making the pins on the reference parts Compared to the same positioning accuracy, the processing cost is lower and the economy is better.

In one of the embodiments, there are multiple assembly positioning pin groups, and each assembly positioning pin group corresponds to the assembly part one-to-one, and passes through the assembly positioning hole group on each assembly part so as to Position the assembly part.

In one of the embodiments, the reference positioning pin group includes at least two reference positioning pins, and the assembly positioning pin group includes at least two assembly positioning pins.

In one of the embodiments, the length direction of the assembly positioning pin set is parallel to the assembly direction of the assembly part.

In one of the embodiments, the reference positioning hole set includes a matching hole and a unidirectional clearance hole, the reference positioning pin set includes two positioning pins, and the size of the matching hole matches one of the positioning pins. , The one-way clearance hole is in clearance fit with the other positioning pin.

An assembly includes a reference part and an assembling part arranged on the assembly side of the reference part; the reference part is provided with a reference positioning hole group, and the reference positioning hole group is used to insert a reference positioning pin group of a positioning mold The assembly positioning hole group is provided with an assembly positioning hole group for positioning the reference part, and the assembly positioning hole group is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the assembly part.

The reference parts of the above assembly do not need to be provided with high-precision positioning pins, instead a reference positioning hole group matched with the positioning pin group of the positioning mold is used, thereby reducing the processing cost of the reference part. Each component can be positioned separately by the positioning mold, and the position of the assembled part that is matched with it will not shift due to the deviation of the shape and size of the reference part, which can effectively ensure the stability of the assembly accuracy between multiple parts, and the quality of the entire product is stable. Good sex.

An assembly method including:

Operate the reference part to make the reference side of the reference part face the positioning mold, and make the reference positioning hole group of the reference part fit on the reference positioning pin group of the positioning mold;

Operate the assembly part close to the assembly side of the reference part in the assembly sequence and make the assembly positioning hole set of the assembly part fit on the assembly positioning pin set of the positioning mold, so that the assembly part is positioned and installed at all The reference parts;

Tightly connect the reference part and the assembly part to form an assembly;

Separate the assembly body and the positioning mold.

In this assembly method, the positioning pin group of the positioning mold can be used to limit the degree of freedom of the parts. At the same time, unlike in the prior art that the various parts are assembled through the positioning structure of the parts themselves, such as pins, holes, etc., the technical solution of the present application integrates multiple positioning pins on one positioning mold, and uses the positioning mold as a vehicle. In the assembly process of the lamp parts, a unified positioning datum is used. Each component can be positioned separately, and the position of the mating assembly part will not shift due to the deviation of the shape and size of the datum part, which can effectively ensure the assembly of multiple parts. The accuracy is stable, so the consistency of product quality can be effectively improved, and the quality of the entire product will not be affected by the fluctuation of the size of the reference part. Moreover, the separated positioning mold can also be used for the installation of the next assembly.

A vehicle lamp optical assembly, including a radiator, a circuit board, and a light distribution component; the radiator is provided with the reference positioning hole group, and the reference positioning hole group is used to communicate with the reference of the positioning mold The positioning pin group is inserted and matched to position the heat sink, the circuit board and the light distribution assembly are arranged on the assembly side of the heat sink, and the assembly positioning hole group is opened on the circuit board and the light distribution assembly, so The assembly positioning hole set is used for inserting and mating with the assembly positioning pin set of the positioning mold to position the circuit board and the light distribution component.

In one of the embodiments, the light distribution component is one or more combinations of reflective elements, light concentrating elements, and lenses.

In one of the embodiments, a channel for the assembly positioning pin group to pass through is formed in the heat sink.

In one of the embodiments, the light distribution assembly includes a first reflector and a second reflector. The first reflector and the second reflector are respectively provided with the assembly positioning hole group, and the two The assembly positioning hole sets are all inserted and matched with the assembly positioning pin sets of the positioning mold.

A vehicle lamp module is positioned by using a positioning mold. The vehicle lamp module includes a shading plate assembly, a lens bracket and a vehicle light optical assembly. The shading plate assembly is provided with the reference positioning hole group, It is used to insert and cooperate with the reference positioning pin group of the positioning mold to position the shading plate assembly; the lens holder is arranged on the assembly side of the shading plate assembly, and the lens holder is provided with the The assembly positioning hole set is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the lens holder; the vehicle light optical assembly is provided with positioning pins, so The positioning pin can pass through the light-shielding plate assembly and cooperate with the assembly positioning hole group of the lens holder.

A vehicle lamp module includes a lens holder, a shading plate assembly, and a vehicle light optical assembly. The lens holder is provided with a reference positioning hole group for inserting and matching with the reference positioning pin group of the positioning mold to position the The lens holder; the shading plate assembly and the vehicle light optical assembly are sequentially arranged on the assembly side of the lens holder, and the shading plate assembly and the vehicle light optical assembly are respectively provided with assembly positioning holes The assembly positioning hole set is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the light-shielding plate assembly and the vehicle light optical assembly.

The vehicle lamp module of this embodiment uses a lens holder as a reference part. The assembly positioning pin set of the positioning mold can limit the freedom of movement and rotation of the light shield assembly and the optical assembly of the car light, and realize precise positioning. The positioning mold is used as the only positioning reference. Since the lens holder, the visor assembly, and the light optical assembly can be independently positioned on the positioning mold, the selected reference parts will not cause the matching assembly parts due to the deviation of the selected reference parts. The position is shifted, which can effectively ensure the stability of the assembly accuracy between the parts, and the output light shape can meet the legal requirements.

A vehicle lamp module includes a vehicle light optical assembly, a shading plate assembly and a lens holder. The radiator is provided with a reference positioning hole group for inserting and matching with the reference positioning pin group of the positioning mold to position the The heat sink; the circuit board, the light distribution component, the light shielding plate assembly and the lens holder are sequentially arranged on the assembly side of the heat sink, and the circuit board, the light distribution component, the light shielding plate assembly and the The lens holder is respectively provided with an assembly positioning hole group, and the assembly positioning hole group is used to insert and cooperate with the assembly positioning pin group of the positioning mold to position the circuit board, the light distribution component, the light shield assembly and the Lens holder.

The vehicle lamp module of this embodiment uses a radiator as a reference part. The assembly positioning pin set of the positioning mold can limit the freedom of movement and rotation of the other components contained in the lamp module relative to the radiator to achieve precise positioning; the positioning mold is used as the only positioning reference, because each component can They are independently positioned on the positioning molds, which can effectively ensure the stability of the assembly accuracy of each part, and the output light shape can meet the requirements of regulations. Compared with the car light module of the previous embodiment, this embodiment uses one positioning tool to control multiple discrete components included in the car light module, such as the radiator, circuit board, auxiliary reflector, main reflector, and shading. The plate assembly and the lens holder are positioned separately to limit the freedom of each component and the assembly accuracy between each other, thereby saving the manufacturing cost of the positioning mold and also increasing the assembly speed.

Description of the drawings

Figure 1 is a schematic diagram of the assembly of the existing reflective structure;

Fig. 2 is a perspective view of the reflective structure assembled in Fig. 1;

FIG. 3 is a schematic diagram of a positioning mold provided by Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of positioning the optical assembly of a vehicle light by using the positioning mold of Fig. 3;

Figure 5 is an exploded schematic diagram of Figure 4;

Figure 6 is a top view of the radiator in the light optical assembly;

Fig. 7 is a schematic diagram of the radiator being positioned and installed on the positioning mold of Fig. 3;

Fig. 8 is a schematic diagram of a positioning mold provided by the second embodiment of the present invention;

Fig. 9 is a schematic diagram of using the positioning mold of Fig. 8 to locate the lens holder and the light-shielding plate assembly;

Fig. 10 is an exploded schematic diagram of Fig. 9;

FIG. 11 is a schematic diagram of positioning the light-shielding plate assembly using the positioning mold of FIG. 8;

Figure 12 is a schematic diagram of the positioning and connection of the components composed of the light-shielding plate assembly and the lens holder and the vehicle light optical assembly;

FIG. 13 is a schematic diagram of a positioning mold provided by Embodiment 3 of the present invention;

Figure 14 is a schematic diagram of using the positioning mold of Figure 13 to locate the lens holder, the shading plate assembly and the vehicle light optical assembly;

Fig. 15 is an exploded schematic diagram of Fig. 14;

Fig. 16 is a schematic diagram of the lens holder being positioned on the positioning mold of Fig. 13;

Figure 17 is a schematic diagram of the shading plate assembly positioned on the positioning mold of Figure 13;

18 is a schematic diagram of the vehicle lamp module assembled in the third embodiment;

Fig. 19 is a schematic diagram of a positioning mold provided by the fourth embodiment of the present invention;

20 is a schematic diagram of positioning the circuit board, the first reflector, and the shading plate assembly by using the positioning mold of FIG. 19;

FIG. 21 is a schematic diagram of the positioning and assembly of the vehicle lamp module in the positioning mold of FIG. 19.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Those of ordinary skill in the art will recognize that changes and improvements can be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. In addition, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.

It should be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be a central element; when an element is considered to be "connected" to another element, it can be It is directly connected to another element or there may be a centered element at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more related listed items. It should be noted that the reference side mentioned in the following description is the side where the reference part is fitted to the positioning mold, and the assembly side is the side where the reference part matches the assembly part.

The invention provides a positioning mold, which includes a positioning base and a positioning component. The positioning component is arranged on the surface of the positioning base and includes a reference positioning pin group and an assembly positioning pin group. The reference positioning pin group can be inserted into a reference set on a reference part. The positioning hole set is used to locate the reference part, and the assembly positioning pin set can be inserted into the assembly positioning hole set opened in the assembly part to locate the assembly part assembled with the reference part. Among them, preferably, in order to reduce the number of positioning pins of the positioning mold and facilitate processing, the assembly positioning pin set and the reference positioning pin set can share a positioning pin set, for example, the vehicle light optical assembly 200' in the third embodiment below The assembly positioning hole group 201' is matched with the reference positioning pin group 120c on the positioning mold 100c.

The above-mentioned positioning mold is a positioning tool used to uniformly position each component of the assembly, and it is the positioning reference of the entire assembly. Wherein, the assembly includes a reference part and an assembly part set on the assembly side of the reference part, the reference part is a part that is first positioned on the positioning mold, and the assembly part is a part that is assembled in cooperation with the reference part; the reference part Set up a set of reference positioning holes, the set of reference positioning holes are used to insert and cooperate with the set of reference positioning pins of the positioning mold to locate the reference parts, and the set of assembly positioning holes are set on the assembly parts, and the set of assembly positioning holes is used for the positioning of the mold. The assembly positioning pin group is inserted and matched to position the assembly part.

The above-mentioned positioning mold may be a positioning mold for the assembly of vehicle lamp modules, which can be applied to a variety of assembly bodies in vehicle lamp modules, for example, the assembly of vehicle light optical assemblies, lenses, and shading plates. According to different assemblies, the positioning tires have different structures. The following specifically introduces several assemblies and their corresponding positioning tire structures and their assembly methods.

Example one

4-7, this embodiment provides a vehicle light optical assembly. The vehicle light optical assembly 200 includes a radiator 210, a circuit board 240 and a light distribution component. The circuit board 240 is provided with a light source, and the light emitted by the light source It needs to be emitted after the light distribution component is adjusted. The light distribution component can be selected from one or a combination of reflective elements, light concentrating elements, and lenses. Among them, the reflective element has various forms, which can be a bowl-shaped reflective bowl or a plate-shaped reflector; the condensing element can be a condenser, which is a kind of total internal reflection lens, which is common Condensing element, the light inside can be collected, collimated and emitted; the lens can be a plano-convex lens, a double-convex lens, a concave-convex lens, etc. In some light-emitting modules, such as car lamp modules, the light distribution component may include a first reflector 220 and a second reflector 230. As a way, the first reflector 220 can be used to form a central area of the low beam shape. The main low-beam light shape, the second reflector 230 can be used to form the auxiliary low-beam light shape located in the widening area of the low-beam light shape; as another way, the first reflector 220 can be used to form the high-beam light shape, and the second reflector 230 can be used to form the high beam light shape. The mirror 230 can be used to form a low-beam light shape. Of course, the light distribution component can also include only one reflector. Therefore, the composition and structure of the light distribution component can be selected according to the function of the lamp module, but no matter which structure form, In order to obtain a light shape that meets legal requirements, both the first reflector 220 and the second reflector 230 need to be accurately installed with respect to the light source.

In view of this, as shown in FIG. 3, in the first embodiment of the present invention, a positioning mold 100a is provided, which includes a positioning base 110a and a positioning component. The positioning component is provided on the surface of the positioning base 110a and includes a reference positioning pin set 120a and an assembly Locating pin group 130a, the reference locating pin group 120a includes two reference locating pins, the reference locating pin group 120a can be inserted into the reference locating hole group opened in the reference part to locate the reference part, the assembly locating pin group 130a is divided into the first assembly positioning The pin set 131a and the second assembly positioning pin set 132a. The first assembly positioning pin set 131a and the second assembly positioning pin set 132a respectively include two assembly positioning pins. The assembly positioning pin set 130a can be inserted into the assembly positioning of the assembly parts. The hole group is used to locate the assembly parts assembled with the reference parts.

As shown in Figures 5 and 6, the radiator 210, the circuit board 240, and the light distribution component of the above-mentioned vehicle light optical assembly 200 are uniformly positioned using the positioning mold 100a, and the radiator 210 is used as the reference part, and the circuit board 240 , The first mirror 220 and the second mirror 230 are used as assembly parts. The radiator 210 is provided with a set of reference positioning holes 211, which are used to insert and cooperate with the set of reference positioning pins 120a of the positioning mold 100a to locate the radiator 210, the circuit board 240, the first reflector 220 and the second reflector 230 Both are provided with a set of assembly positioning holes for inserting and mating with the assembly positioning pin set 130a of the positioning mold 100a to position the circuit board 240, the first reflector 220, and the second reflector 230. Since the assembly directions of the heat sink 210, the circuit board 240, the first reflector 220, and the second reflector 230 are up and down, the reference positioning pin set 120a and the assembly positioning pin set 130a can all extend in the up and down direction.

The specific assembling method of the above-mentioned positioning mold 100a assembling the lamp optical assembly 200 is as follows:

As shown in FIG. 7, the radiator 210 is operated so that its reference side faces the positioning mold 100a, and the reference positioning hole group 211 on the radiator 210 is fitted on the reference positioning pin set 120a of the positioning mold 100a;

As shown in Figure 5, according to the assembly sequence of the assembly parts, the circuit board 240 is positioned and installed on the assembly side of the radiator 210 through the assembly positioning hole set 241 opened on its surface and the first assembly positioning pin set 131a, and then the second operation is performed in sequence. A reflector 220 and a second reflector 230 are close to the assembly side of the radiator 210, and the assembly positioning hole set of the first reflector 220 and the second reflector 230 is fitted to the second assembly positioning pin set 132a of the positioning mold 100a , So that the first reflector 220 and the second reflector 230 are positioned and installed on the heat sink 210;

As shown in FIG. 4, the circuit board 240, the first reflector 220, the second reflector 230, and the radiator 210 are fastened by bolts to form an assembly. The assembly is the lamp optical assembly 200. After the lamp optical assembly 200 is separated from the positioning mold 100a, the positioning mold 100a can be used for the installation of the next vehicle lamp optical assembly 200.

In the above assembly process, using the radiator 210 as the reference part, the first assembly positioning pin set 131a of the positioning mold 100a can restrict the movement and rotation freedom of the circuit board 240, and the second assembly positioning pin set 132a can restrict the first assembly positioning pin set 132a. The degree of freedom of movement and the degree of freedom of rotation of a reflector 220 and a second reflector 230; since the circuit board 240, the first reflector 220 and the second reflector 230 can be respectively positioned on the positioning mold 100a, and the positioning mold 100a is For machined parts, it is relatively easy to realize the operation of the positioning pin group on the surface processing, and the processing accuracy can be very high. The lamp optical assembly 200 will not appear due to the deviation of the shape and size of the radiator 210. Offset, which can effectively ensure the stability of the assembly accuracy of multiple parts with each other, the quality of the entire product is stable, and the formed car light pattern can more easily meet the requirements of laws and regulations, and the user experience is improved.

In the above embodiment, the heat sink 210 is not provided with any positioning pin for positioning the optical element, and only the reference positioning hole group 211 and the channel 212 for each assembly positioning pin group 130a to pass through are formed. The processing of the device 210 is easy because it does not need to process the positioning pins, and the processing cost is greatly reduced. The assembly positioning pin group 130a can pass through the radiator 210. This arrangement can make full use of the space inside the radiator 210, and the overall structure of the vehicle light optical assembly 200 formed is compact. Of course, in some other embodiments, the assembly positioning pin group may not pass through the radiator 210, which is not limited here.

In the above embodiment, the reference positioning hole group 211 includes a matching hole 2111 and a one-way clearance hole 2112, and the reference positioning pin group 120a includes two positioning pins. Among them, the matching hole 2111 matches the size of one of the positioning pins, so that the positioning pin inserted into the matching hole 2111 has no moving space in the matching hole 2111, limiting the freedom of movement of the assembly parts, and positioning is accurate and stable. The matching hole 2111 is preferably round. The unidirectional clearance hole 2112 is in clearance fit with another positioning pin, and together with the matching hole 2111, it limits the rotational freedom of the assembly parts and facilitates the positioning of the reference part on the positioning mold. The unidirectional clearance hole 2112 is preferably waist-shaped The hole and the matching positioning pin contact the two sides of the waist-shaped hole. Similarly, the reference positioning hole group and the assembly positioning hole group in the other embodiments can all adopt the above-mentioned forms.

In the above-mentioned assembly method, the first reflector 220 and the second reflector 230 are both plug-fitted with the second assembly positioning pin group 132a of the positioning mold 100a. In some other embodiments, the first reflecting mirror 220 and the second reflecting mirror 230 may respectively correspond to an assembly positioning pin group, which is not limited here.

More than 200 of the above-mentioned car light optical assemblies are used in car lamp modules. Of course, the above-mentioned light distribution components can also be replaced with other reflective elements, condensing elements, lenses, etc., as optical parts, which are used in car lamp modules. It also includes a lens holder. A lens is installed on the lens holder. When the car light module has a low beam lighting mode function, it also includes a shading plate assembly. The shading plate assembly includes a shading plate and a motor for driving the shading plate to rotate. , Shaft and other components, wherein the shading plate is used to block part of the light to form a low-beam light-shaped cutoff line. The light-emitting principle of the above-mentioned car lamp module is: when the car lamp module is in the high beam illumination mode, the light emitted by the light source in the car lamp optical assembly 200 is reflected by the first reflector 220 to the lens on the lens holder, After the lens is refracted, the high beam of the vehicle is formed; when the lamp module is in the low beam lighting mode, part of the light emitted by the light source is blocked by the shading plate, and the other light is reflected by the second reflector 230 to the lens, and after being refracted by the lens Can form vehicle low beam. Therefore, the installation positions of the vehicle light optical assembly, the shading plate assembly and the lens holder are very important for the formation of far and near beams. The vehicle lamp module can use positioning molds to improve the positioning and installation accuracy of various parts. Specifically, it has at least the following three embodiments.

Example two

Referring to Figures 9-12, the car light module of this embodiment includes a lens holder 400, a shading plate assembly 300, and the above-mentioned car light optical assembly 200, wherein a lens 410 is installed on the lens holder 400, and the car light optical assembly 200 can use the above positioning mold 100a for positioning and assembly. Because the positioning pins on the positioning mold 100a extend in the up and down direction, and the assembly direction of the light shield assembly 300 and the lens holder 400 is the front and rear direction, therefore, the lens holder 400 and the light shield The plate assembly 300 can be positioned and assembled by the positioning mold 100b as shown in FIG. 8, which uses the shading plate assembly 300 as the reference part and the lens holder 400 as the assembly part.

Specifically, as shown in FIG. 8, the positioning mold 100b includes a positioning base 110b and a positioning component. The positioning component is provided on the surface of the positioning base 110b and includes a reference positioning pin group 120b and an assembly positioning pin group 130b. The reference positioning pin group 120b It includes two reference positioning pins, and the assembly positioning pin group 130b includes two assembly positioning pins.

Correspondingly, as shown in FIG. 10, a reference positioning hole group 301 is opened on the light-shielding plate assembly 300, which is used to insert and cooperate with the reference positioning pin group 120b of the positioning mold 100b to position the light-shielding plate assembly 300; lens holder 400 An assembly positioning hole group 401 is opened on the upper part, which is used to insert and cooperate with the assembly positioning pin group 130b of the positioning mold 100b to position the lens holder 400. Since the assembling direction of the light-shielding plate assembly 300 and the lens holder 400 is the front-rear direction, the reference positioning pin group 120b and the assembling positioning pin group 130b may both extend in the front-rear direction.

The specific assembly method of the vehicle lamp module of this embodiment is as follows:

First, the positioning mold 100a in the first embodiment can be used to pre-assemble the vehicle light optical assembly 200, and the assembling method is the same as the assembling method in the first embodiment.

As shown in Figure 11, operate the light shield assembly 300 so that its reference side faces the positioning mold 100b, and make the reference positioning hole group 301 on the light shield assembly 300 fit on the reference positioning pin set 120b of the positioning mold 100b ；

As shown in FIG. 9, the lens holder 400 with the lens 410 installed is close to the assembly side of the light-shielding plate assembly 300 and the assembly positioning hole set 401 of the lens holder 400 is fitted on the assembly positioning pin set 130b of the positioning mold 100b. Therefore, the lens holder 400 is positioned on the light shielding plate assembly 300; wherein, as shown in FIG. 11, the light shielding plate assembly 300 is provided with a through hole 302 for the assembly positioning pin group 130b to pass through, and the assembly positioning pin group 130b and the through hole 302 Clearance fit to avoid over-positioning of the light-shielding plate assembly 300, the assembly positioning pin set 130b passes through the through hole 302 of the light-shielding plate assembly 300, the assembly positioning hole set 401 of the lens holder 400 and the assembly positioning hole set of the lens holder 400 in turn 401 match;

As shown in Figure 12, the lens holder 400 and the shading plate assembly 300 are fastened by bolts 10a, and the positioning mold 100b is separated for the installation of the next lens holder 400 and shading plate assembly 300, and then the above-mentioned car The lamp optical assembly 200 is positioned and connected to the assembly composed of the light shielding plate assembly 300 and the lens holder 400. Specifically, as shown in FIG. 7, a positioning pin 213 is provided on the heat sink 210, and the positioning pin 213 can pass through the light shielding plate in turn The through hole 302 of the assembly 300, the assembly positioning hole group 401 of the lens holder 400 and the assembly positioning hole group 401 of the lens holder 400 are matched, and finally the lamp optical assembly 200, the light shield assembly 300 and The lens holder 400 with the lens 410 installed.

In this embodiment, the reference positioning pin set 120b of the positioning mold 100b can limit the freedom of movement and rotation of the light-shielding plate assembly 300; the assembly positioning pin group 130b can restrict the lens holder 400 relative to the light-shielding plate assembly 300 The degree of freedom of movement and the degree of freedom of rotation enable precise positioning. Taking the positioning mold 100b as the only positioning reference, since the light-shielding plate assembly 300 and the lens holder 400 can be independently positioned on the positioning mold, and the positioning mold 100b is a machined part, the operation of the positioning pin set on the surface is compared It is easy to realize, the machining accuracy can be very high, and the position of the matching parts will not be shifted due to the deviation of the selected reference part shape and size, so as to effectively ensure the stability of the assembly accuracy of each part, and the formed car The light shape can meet the legal requirements.

Example three

Referring to Figures 14-18, the difference between this embodiment and the second embodiment is that it uses the lens holder 400' as the reference part, and the shading plate assembly 300' and the lamp optical assembly 200' as the assembly parts.

Specifically, the reference positioning pin set 120c of the positioning mold 100c includes two reference positioning pins, and the assembly positioning pin set 130c includes two assembly positioning pins.

Correspondingly, as shown in FIG. 15, the lens holder 400' is provided with a reference positioning hole group 401', which is used to insert and cooperate with the reference positioning pin group 120c of the positioning mold 100c to position the lens holder 400'; An assembly positioning hole set 301' is opened on the 300', which is used to insert and cooperate with the assembly positioning pin set 130c of the positioning mold 100c to locate the shading plate assembly 300'; an assembly positioning hole is opened on the vehicle light optical assembly 200' The assembly 201', the assembly positioning hole assembly 201' can be directly inserted and matched with the reference positioning pin assembly 120c of the positioning mold 100c to position the vehicle light optical assembly 200'. Here, the assembly positioning pin set corresponding to the lamp optical assembly 200' and the reference positioning pin set 102c share a positioning pin set, which simplifies the structure of the positioning mold. Of course, as an alternative, it can also be used in the positioning mold 100c. An assembly positioning pin group matched with the assembly positioning hole group 201' of the lamp optical assembly 200' is provided on the upper part, and the assembly positioning pin group is not the same positioning pin group as the reference positioning pin group 120c. Since the assembling direction of the lamp optical assembly 200', the shading plate assembly 300' and the lens holder 400' is the front-rear direction, the reference positioning pin group 120c and the assembly positioning pin group 130c extend in the front-rear direction.

First of all, the positioning mold 100a in the first embodiment can be used to pre-assemble the vehicle light optical assembly, and the assembling method is the same as the assembling method in the first embodiment.

As shown in FIG. 16, the lens holder 400' is operated so that its reference side faces the positioning mold 100c, and the reference positioning hole group 401' on the lens holder 400' is sleeved on the reference positioning pin set 120c of the positioning mold 100c;

As shown in Figure 17 and Figure 18, in the order of assembly, operate the light-shielding plate assembly 300' and the lamp optical assembly 200' to be close to the assembly side of the lens holder 400' and make the assembly positioning hole group of the light-shielding plate assembly 300' 301' and the assembly positioning hole set 201' of the lamp optical assembly 200' are sequentially fitted on the positioning pin set of the corresponding positioning mold 100c, thereby positioning the light shield assembly 300' and the lamp optical assembly 200' In the lens holder 400'; wherein, as shown in FIG. 15, the shading plate assembly 300' is provided with a through hole 302' for the reference positioning pin set 120c to pass through, and the reference positioning pin set 120c and the through hole 302' are in clearance fit To avoid over-positioning of the light-shielding plate assembly 300', the reference positioning pin set 120c passes through the reference positioning hole group 401' of the lens holder 400', the through hole 302' of the light-shielding plate assembly 300', and the headlight optical assembly 200'. Assemble positioning hole group 201';

As shown in Figure 14, the light optical assembly 200', the shading plate assembly 300' and the lens holder 400' are fastened and connected by bolts 10a' to form an assembly, which is then separated from the positioning mold 100c to position the mold 100c can be used for the installation of the next car light module, and then the lens 410' is placed on the lens holder 400' to form the car light module.

In the above assembly operation process, the lens holder 400' is used as a reference part. The assembly positioning pin set 130c of the positioning mold 100c can limit the freedom of movement and rotation of the light shield assembly 300' to achieve precise positioning; the reference positioning pin set 120c can simultaneously restrict the lens holder 400' and the light optical assembly 200' degrees of freedom of movement and rotation. Taking the positioning mold 100c as the only positioning reference, since the lens holder 400', the shading plate assembly 300', and the lamp optical assembly 200' can be independently positioned on the positioning mold 100c, and the positioning mold 100c is a machined part , It is relatively easy to realize the positioning pin group operation on its surface processing, and the processing accuracy can be very high. The position of the matched part will not be offset due to the deviation of the selected reference part shape and size, so as to effectively ensure that the parts are mutually The assembly accuracy is stable, and the formed car light shape can meet the requirements of regulations.

In the third embodiment, the adopted vehicle light optical assembly 200' is pre-assembled and formed according to the method of the first embodiment, which can fully ensure the assembly accuracy of all the components included in the vehicle light module. Of course, in some other embodiments, the vehicle light optical assembly can be assembled in a conventional manner, and there is no limitation here.

Example four

In the above-mentioned second and third embodiments, two positioning molds are needed to complete the positioning of multiple parts of the lamp module. The assembly steps need to be further simplified. For example, the optical assembly of the lamp and the light-shielding plate assembly can be used. The assembly direction of the three lens holders is also designed to be up and down, so that one positioning mold can be used to complete the positioning of all parts.

Specifically, refer to Figs. 19-21, which use the heat sink 210" as the reference part, the circuit board 240", the first reflector 220", the second reflector 230", the shading plate assembly 300" and the lens holder 400" As an assembly part, the positioning mold 100d shown in FIG. 19 is used for positioning and installation.

Specifically, as shown in FIG. 19, the positioning mold 100d is provided with a reference positioning pin set 120d, a first assembly positioning pin set 131d, a second assembly positioning pin set 132d, and a third assembly positioning pin set 133d. The pin set 131d, the second assembly positioning pin set 132d, and the third assembly positioning pin set 133d respectively include two assembly positioning pins; similarly, the heat sink 210", the circuit board 240", the first reflector 220", and the second reflector The mirror 230", the light-shielding plate assembly 300" and the lens holder 400" are all provided with a corresponding reference positioning hole group or assembly positioning hole group. Since the same positioning mold is used, the reference positioning pin set and the assembly positioning pin set both extend in the up and down direction.

Operate the radiator 210" so that the reference side faces the positioning mold 100d, and make the reference positioning hole set on the radiator 210" fit on the reference positioning pin set 120d of the positioning mold 100d;

According to the assembling method of the light optical assembly described in the first embodiment, the circuit board 240" is matched with the first assembly positioning pin set 131d, and the first reflector 220" and the second reflector 230" are combined with the second assembly positioning pin set 132d is positioned and installed on the radiator 210" to form a car light optical assembly; then operate the light-shielding plate assembly 300" and the lens holder 400" with the lens 410" to be close to the assembly side of the radiator 210" and make the light-shielding plate assembly The assembly positioning hole set on the lens holder 410” is fitted on the third assembly positioning pin set 133d of the positioning mold 100d, so that the light shield assembly 300” and the lens holder 400” can be positioned and installed in the light optics. Assembly, refer to Figure 20 and Figure 21;

Use bolts 10a" to fasten the lens holder 400", the shading plate assembly 300" and the lamp optical assembly to form an assembly, which is the lamp module, which separates the lamp module from the positioning mold 100d After that, the positioning mold 100d can be used for the installation of the next car light module.

The above assembly operation process takes the radiator as the reference part. The assembly positioning pin set of the positioning mold 100d can limit the freedom of movement and rotation of the other components contained in the lamp module relative to the radiator 210" to achieve precise positioning; the positioning mold 100d is used as the only positioning reference, Since each component can be independently positioned on the positioning mold 100d, and the positioning mold 100d is a machined part, it is relatively easy to realize the surface processing of the positioning pin group operation, and the processing accuracy can be achieved high, which can effectively guarantee each part The assembly accuracy between each other is stable, and the formed car light shape can meet the requirements of regulations. Compared with the assembly method of the previous embodiment, this embodiment uses one positioning mold to adjust the multiple scattered parts contained in the car light module. For example, the radiator 210", the circuit board 240", the first reflector 220", the second reflector 230", the shading plate assembly 300" and the lens holder 400" are positioned separately to limit the degree of freedom of each component and each other The assembly accuracy of this machine saves the manufacturing cost of positioning molds and also improves the speed of assembly.

In each of the foregoing embodiments, the reference positioning pin group includes two reference positioning pins, and the assembly positioning pin group includes two assembly positioning pins. It is understandable that in some other embodiments, the reference positioning pin group may include more than two reference positioning pins, and the assembly positioning pin group includes more than two assembly positioning pins, which does not affect the normal implementation of the solution, and is not limited here.

As a preferred solution, the length direction of the assembly positioning pin group in each of the foregoing embodiments is parallel to the assembly direction of the assembly part. The assembly direction is the direction in which the assembly part approaches the reference part during assembly. After adopting this preferred solution, the assembly positioning pin group can be inserted when the assembly part is close to the reference part, which facilitates the assembly of the assembly part and the reference part.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and their description is relatively specific and detailed, but they should not be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A positioning mould, characterized in that it comprises:

Positioning base

The positioning component is arranged on the surface of the positioning base and includes a reference positioning pin group and an assembly positioning pin group. The reference positioning pin group can be inserted into the reference positioning hole group opened in the reference part to locate the reference part. The assembly positioning pin set can be inserted into the assembly positioning hole set opened in the assembly part to position the assembly part.
The positioning mold according to claim 1, wherein there are a plurality of assembly positioning pin sets, and each assembly positioning pin set corresponds to the assembly part one by one, and passes through each assembly part. The assembly positioning hole group is so as to position the assembly part.
The positioning mold according to claim 1, wherein the reference positioning pin set includes at least two reference positioning pins, and the assembly positioning pin set includes at least two assembly positioning pins.
The positioning mold according to claim 1, wherein the length direction of the assembly positioning pin set is parallel to the assembly direction of the assembly part.
The positioning mold according to claim 1, wherein the reference positioning hole group includes a matching hole and a one-way clearance hole, the reference positioning pin group includes two positioning pins, and the matching hole is One of the positioning pins is matched in size, and the one-way clearance hole is in clearance fit with the other positioning pin.
An assembly, characterized in that the positioning mold according to any one of claims 1 to 5 is used for positioning, and the assembly includes the reference part and an assembly part provided on the assembly side of the reference part; The reference part is provided with the reference positioning hole group, the reference positioning hole group is used to insert and cooperate with the reference positioning pin group of the positioning mold to position the reference part, and the assembly part is provided with The assembly positioning hole set is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the assembly part.
A method for assembling an assembly according to claim 6, characterized in that it comprises:

Operate the reference part to make the reference side of the reference part face the positioning mold, and make the reference positioning hole group of the reference part fit on the reference positioning pin group of the positioning mold;

Operate the assembly part close to the assembly side of the reference part in the assembly sequence and make the assembly positioning hole set of the assembly part fit on the assembly positioning pin set of the positioning mold, so that the assembly part is positioned and installed at all The reference parts;

Tightly connect the reference part and the assembly part to form an assembly;

Separate the assembly body and the positioning mold.
A vehicle light optical assembly, characterized in that the positioning mold according to any one of claims 1 to 5 is used for positioning, and the vehicle light optical assembly includes a radiator, a circuit board and a light distribution component; The heat sink is provided with the reference positioning hole group, and the reference positioning hole group is used for inserting and fitting with the reference positioning pin group of the positioning mold to position the heat sink, the circuit board and the light distribution The assembly is arranged on the assembly side of the radiator, and the circuit board and the light distribution assembly are provided with the assembly positioning hole set, and the assembly positioning hole set is used to interact with the assembly positioning pin set of the positioning mold Plug and fit to locate the circuit board and the light distribution component.
The vehicle lamp optical assembly according to claim 8, wherein the light distribution component is one or a combination of a reflecting element, a light concentrating element, and a lens.
8. The vehicle lamp optical assembly according to claim 8, wherein a passage for the assembly positioning pin group to pass is formed in the radiator.
The vehicle lamp optical assembly according to claim 8, wherein the light distribution component includes a first reflector and a second reflector, and the first reflector and the second reflector are respectively provided with Said assembly positioning hole group, the two assembly positioning hole groups are both inserted and matched with the assembly positioning pin group of the positioning mold.
A vehicle lamp module, characterized in that it is positioned by using the positioning mold according to any one of claims 1-5, and the vehicle lamp module includes a shading plate assembly, a lens bracket, and a lens holder as claimed in claim 8- 11. In the optical assembly of any of the vehicle lights, the reference positioning hole group is provided on the shading plate assembly, which is used to insert and cooperate with the reference positioning pin group of the positioning mold to position the shading plate assembly The lens holder is provided on the assembly side of the shading plate assembly, and the lens holder is provided with the assembly positioning hole set, the assembly positioning hole set is used for the assembly of the positioning mold The positioning pin group is inserted and matched to position the lens holder; the vehicle light optical assembly is provided with a positioning pin, which can pass through the light shield assembly and be positioned with the lens holder Hole group match.
A vehicle lamp module, characterized in that the positioning mold according to any one of claims 1-5 is used for positioning, and the vehicle lamp module includes a lens holder, a light-shielding plate assembly, and a light-shielding plate assembly as claimed in claim 8- 11. In the optical assembly of any one of the vehicle lights, the lens holder is provided with the reference positioning hole group, which is used to insert and cooperate with the reference positioning pin group of the positioning mold to position the lens holder; The light-shielding plate assembly and the vehicle light optical assembly are sequentially arranged on the assembly side of the lens holder, and the assembly positioning hole group is respectively provided on the light-shielding plate assembly and the vehicle light optical assembly. The assembly positioning hole set is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the light-shielding plate assembly and the vehicle light optical assembly.
A vehicle lamp module, characterized in that it is positioned by using the positioning mold according to any one of claims 1-5, and the vehicle lamp module includes a shading plate assembly and a lens bracket, and according to claim 8- 11. In the optical assembly of any one of the vehicle lights, the reference positioning hole group is provided on the radiator for inserting and mating with the reference positioning pin group of the positioning mold to locate the radiator; The circuit board, the light distribution component, the light-shielding plate assembly, and the lens holder are sequentially arranged on the assembly side of the heat sink, and the circuit board, the light-distributing component, the light-shielding plate assembly, and the lens holder are respectively The assembly positioning hole set is opened, and the assembly positioning hole set is used to insert and cooperate with the assembly positioning pin set of the positioning mold to position the circuit board, the light distribution component, the light-shielding plate assembly, and the Lens holder.