CN209341197U - Vehicular illumination device - Google Patents

Abstract

The utility model provides the Vehicular illumination device of a kind of decline that can be realized manufacturing cost and the protection of light-emitting component.Vehicular illumination device involved in embodiment has: substrate；At least one light-emitting component is arranged on a surface of the substrate；Cover covers the light-emitting component；A pair of connection pad, is arranged on a surface of the substrate, and its outside for being located at the cover and be electrically connected with the light-emitting component.The cover includes injection part, covers the light emergence face of the light-emitting component；Interconnecting piece is directly or indirectly arranged in the injection part and protrudes towards the substrate.At least one of hole, notch and the recess portion being inserted into for the interconnecting piece are provided in the substrate.

Description

Vehicular illumination device

Technical field

The embodiments of the present invention is related to a kind of Vehicular illumination device.

Background technique

In the past, the wedge base light bulb without lamp cap was used as Vehicular illumination device.Wedge base light bulb is incandescent lamp Bubble.Therefore, from the viewpoint of energy conservation and long lifetime etc., the vehicle that wedge base light bulb is gradually had light emitting diode is used Lighting device is replaced.In general, continuing edge when the Vehicular illumination device of apparatus preparation optical diode replaces wedge base light bulb With the lamp holder for being originally used for installation wedge base light bulb.Also, it will be provided with the shape of the Vehicular illumination device of light emitting diode Size and shape is set as corresponding with the outer dimension of wedge base light bulb and shape.

But if it will be provided with the outer dimension of the Vehicular illumination device of light emitting diode and shape is set as and wedge base The outer dimension and shape of light bulb are corresponding, it is likely that will lead to structure becomes complicated and manufacturing cost rising.

Also, when the Vehicular illumination device that will be provided with light emitting diode is installed on lamp holder, operator will be used Hand catches Vehicular illumination device.When using wedge base light bulb, since the inside of vacuum tube is arranged in filament, operation Personnel will not touch filament.In contrast, when using the Vehicular illumination device for having light emitting diode, light emitting diode peace On substrate.Therefore, when Vehicular illumination device to be installed on lamp holder, operator, which is possible to touch, is mounted on base Light emitting diode on plate.

Therefore, expect to research and develop the vehicle lighting dress of a kind of decline that can be realized manufacturing cost and the protection of light-emitting component It sets.

Patent document 1: Japanese Unexamined Patent Publication 2014-157689 bulletin

Summary of the invention

Problem to be solved in the utility model is to provide a kind of decline that can be realized manufacturing cost and light-emitting component The Vehicular illumination device of protection.

Vehicular illumination device involved in embodiment has: substrate；At least one light-emitting component is arranged described On one surface of substrate；Cover covers the light-emitting component；A pair of connection pad, is arranged in a table of the substrate On face, and its outside for being located at the cover and it is electrically connected with the light-emitting component.Described cover includes injection part, described in covering The light emergence face of light-emitting component；Interconnecting piece is directly or indirectly arranged in the injection part and protrudes towards the substrate.? The substrate is provided at least one of hole, notch and the recess portion being inserted into for the interconnecting piece.

Embodiment according to the present utility model can provide a kind of decline that can be realized manufacturing cost and light-emitting component Protection Vehicular illumination device.

Detailed description of the invention

Fig. 1 is for illustrating the schematic isometric of Vehicular illumination device involved in present embodiment.

Fig. 2 is the diagrammatic top view of Vehicular illumination device.

Fig. 3 is the schematic sectional view along line A-A cutting of Vehicular illumination device shown in Fig. 1.

In Fig. 4 (a) and be (b) for illustrating the schematic isometric of interconnecting piece involved in other embodiment.

In Fig. 5 (a) and be (b) for illustrating the schematic sectional view of interconnecting piece involved in other embodiment.

In Fig. 6 (a) and be (b) for illustrating the schematic isometric of injection part involved in other embodiment.

Fig. 7 is the diagrammatic top view of Vehicular illumination device.

Fig. 8 is the schematic sectional view along line B-B cutting of Vehicular illumination device shown in Fig. 7.

Fig. 9 is the schematic isometric of cover.

In figure: 1- Vehicular illumination device, 2- substrate, 2a- first part, 2b- second part, 2c- Wiring pattern, 2c1- Install pad, 2c2- connection pad, 2c3- wiring, the hole 2d-, 2e- notch, 2f- radiating part, 2g- heat transfer part, 3- light-emitting component, 4- cover, 4a- injection part, 4aa- injection part, 4ab- injection part, the end 4b-, 4c- interconnecting piece, 4c1- claw, 4ca- interconnecting piece, 4ca1- slit, 4cb1- compressed part, 4d- window, 11- Vehicular illumination device, 12- substrate, the hole 12d-, 13- electrical component, 14- Cover, 14a- injection part, 14c- interconnecting piece, 14d- window.

Specific embodiment

Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, in the drawings, being marked to identical constitutive requirements Identical symbol, and appropriate detailed description will be omitted.

Vehicular illumination device 1 is such as can be used for being arranged in automobile or rail vehicle involved in present embodiment Compartment lamp, panel lamp, reading lamp etc..But it's not limited to that for the purposes of Vehicular illumination device 1.

Fig. 1 is for illustrating the schematic isometric of Vehicular illumination device 1 involved in present embodiment.

Fig. 2 is the diagrammatic top view of Vehicular illumination device 1.

Fig. 3 is the schematic sectional view along line A-A cutting of Vehicular illumination device 1 shown in Fig. 1.

In addition, in the drawings, arrow X indicates side when Vehicular illumination device 1 to be inserted into the lamp holder of lamps apparatus for vehicle To.

As shown in Figure 1 to Figure 3, Vehicular illumination device 1 is provided with substrate 2, light-emitting component 3 and cover 4.

Substrate 2 is plate-like.When substrate 2 can be set to along the lamp holder that Vehicular illumination device 1 is inserted into lamps apparatus for vehicle Direction X (hreinafter referred to as X-direction) extends.For example, the longitudinal direction of substrate 2 can be consistent with X-direction.

Substrate 2 has first part 2a and second part 2b.The width dimensions Wb of second part 2b can be less than first Divide the width dimensions Wa (Wa > Wb) of 2a.In addition, width dimensions refer to the size on the direction orthogonal with X-direction.For example, width Size can be the size on the direction orthogonal with the longitudinal direction of substrate 2.

In order to be easy replacement wedge base light bulb, the width dimensions Wa of first part 2a can be set as 30mm hereinafter, example It such as can be set to 7.6mm.And it is possible to which the width dimensions Wb of second part 2b is set as 20mm hereinafter, for example can be set to 4.4mm.But the width dimensions Wb of the width dimensions Wa of first part 2a and second part 2b is not only limited in illustrating, it can Suitably to be changed.And it is possible to by taper is set as between first part 2a and second part 2b.

Alternatively, it is also possible to be set as " Wa≤Wb ".But if being set as " Wa > Wb ", mounting area can be increased.Therefore, It is easy to change quantity, size and the configuration etc. of light-emitting component 3.In addition, the substrate 2 that flat shape is T-shaped is instantiated herein, but It is that it is not only limited in this.For example, it is also possible to the use of flat shape be the substrate 2 etc. of L-shaped.

Also, hole 2d and notch 2e can be set in first part 2a.Hole 2d through-thickness runs through first part 2a.It cuts A side end opposite with the side second part 2b of first part 2a is arranged in mouth 2e.Cover 4 interconnecting piece 4c be inserted in hole 2d and Notch 2e.Therefore, configuration, size and the quantity etc. of hole 2d and notch 2e can suitably be changed according to interconnecting piece 4c.Also, it can also Notch 2e with only providing holes 2d or is only set.

Substrate 2 can be made of insulating material.Substrate 2 can be by nothings such as ceramic (for example, aluminium oxide or aluminium nitride etc.) Organic materials such as machine material, paper phenol or glass epoxide etc. are made.Also, substrate 2 is also possible to coat gold with insulating material Belong to substrate made of plate surface.In addition, insulating material can be with insulating material clad metal plate surface The insulating material being made of organic material is also possible to the insulating material being made of inorganic material.

In the higher situation of calorific value of light-emitting component 3, it is preferable to use thermal coefficient is higher from the viewpoint of heat dissipation Material substrate 2 is made.As the higher material of thermal coefficient, the ceramics such as aluminium oxide or aluminium nitride, high-termal conductivity can be included Resin, material made of insulating material clad metal plate surface etc..High-termal conductivity resin is, for example, in PET In the resins such as (Polyethylene terephthalate/ polyethylene terephthalate) or nylon (Nylon) mixing by Resin made of the filler of the compositions such as aluminium oxide or carbon.

The thickness of substrate 2 can be set to 1.6mm or more and 3.0mm hereinafter, for example can be set to 2.0mm.But substrate 2 Thickness be not only limited in illustrating.

Also, substrate 2 can be single layer structure and be also possible to multilayered structure.

A surface of substrate 2 is provided with Wiring pattern 2c.Wiring pattern 2c has installation pad 2c1, connection pad 2c2 and wiring 2c3.Installation pad 2c1 with connect pad 2c2 and be electrically connected by wiring 2c3.

Installation pad 2c1 is set to first part 2a.Light-emitting component 3 is electrically connected in installation pad 2c1.Pad is installed The quantity of 2c1 can be set to identical as the quantity of light-emitting component 3.

Connection pad 2c2 is arranged in second part 2b and is provided with a pair.Substrate 2 is arranged in a pair of connection pad 2c2 On one surface and positioned at the outside of cover 4.A pair of connection pad 2c2 is electrically connected with light-emitting component 3.Second part 2b, which is inserted in, to be set Set the lamp holder in lamps apparatus for vehicle.That is, the part for being provided with a pair of of connection pad 2c2 of substrate 2 is inserted into setting in vehicle With the lamp holders of lamps and lanterns.The terminal that lamp holder is arranged in is contacted with the connection pad 2c2 that second part 2b is arranged in.A pair of connection weldering Disk 2c2 can be set on a surface of substrate 2.Alternatively, it is also possible to be set respectively on substrate 2 a surface and another surface Set a pair of of connection pad 2c2.At this point, utilizing the perforative conductive through hole of thickness direction (Conductive vias) etc. along substrate 2 By the connection pad 2c2 electricity of the connection pad 2c2 that a surface of substrate 2 is arranged in and another surface that substrate 2 is arranged in Connection.

Wiring 2c3 is formed by conductive material.For example, wiring 2c3 can be formed by low resistive metals such as silver, copper, aluminium.And And wiring 2c3 is preferably formed by the higher material of thermal coefficient.

Also, substrate 2 is provided with radiating part 2f and heat transfer part 2g.

The surface with the side opposite side for being provided with installation pad 2c1 of substrate 2 is arranged in radiating part 2f.Heat transfer part 2g The inner wall of hole 2d or the inner wall of notch 2e are set.The one end of heat transfer part 2g is provided with the portion of installation pad 2c1 with being connected to The wiring 2c3 connection divided.The another side of heat transfer part 2g is connect with radiating part 2f.That is, radiating part 2f is via heat transfer part 2g and company It is connected to the wiring 2c3 connection of installation pad 2c1.

In addition, the feelings that the one end for instantiating heat transfer part 2g herein is connect with the wiring 2c3 for being connected to installation pad 2c1 Condition, but it is also possible to which the one end of heat transfer part 2g is directly connected in installation pad 2c1.

Radiating part 2f and heat transfer part 2g can be in membranaceous.For example, one group of heat dissipation can be set for an installation pad 2c1 Portion 2f and heat transfer part 2g.In Vehicular illumination device 1 shown in Fig. 1, due to being provided with two groups of installation pad 2c1, can Radiating part 2f and heat transfer part 2g is arranged for the two installation pad 2c1 of configuration on the outside in two groups of installation pad 2c1.? Installation pad 2c1 be provided with it is multiple in the case where, can will be connected to one installation pad 2c1 radiating part 2f and heat transfer part 2g It is set as insulated from each other with the radiating part 2f and heat transfer part 2g for being connected to another installation pad 2c1.

Radiating part 2f and heat transfer part 2g is formed by the higher material of thermal coefficient.For example, can be by metals such as silver, copper, aluminium Form radiating part 2f and heat transfer part 2g.At this point, it is preferable to use the material phases with wiring 2c3 for the material of radiating part 2f and heat transfer part 2g Same material.If the material of radiating part 2f, heat transfer part 2g and wiring 2c3 are identical, can the same process formed radiating part 2f, Heat transfer part 2g and wiring 2c3.Radiating part 2f, heat transfer part 2g and wiring 2c3 can for example be formed by galvanoplastic.

If being provided with via heat transfer part 2g and installation pad 2c1 and being connected in the wiring 2c3 of installation pad 2c1 at least One connection radiating part 2f, then the heat generated in light-emitting component 3 can via installation pad 2c1, be connected to installation pad 2c1 Wiring 2c3 and heat transfer part 2g be transmitted to radiating part 2f.The heat for being transmitted to radiating part 2f is released via radiating part 2f to outside It puts.Therefore, the temperature for being able to suppress light-emitting component 3 becomes excessively high.

At this point, the inner wall of hole 2d or the inner wall of notch 2e are set due to heat transfer part 2g, with setting in conductive through hole Deng situation compare, can enlarging section product.Therefore, can make to become to hold from installation pad 2c1 towards the heat transfer of radiating part 2f Easily.

In addition, heat transfer part 2g only will be configured to connection installation pad 2c1 and be connected in the wiring 2c3 of installation pad 2c1 At least one party and radiating part 2f.Heat transfer part 2g also can be set in the entire inner wall of hole 2d or the entire of notch 2e Wall can also be arranged in a part of the inner wall of hole 2d or a part of the inner wall of notch 2e.

Light-emitting component 3 is arranged in first part 2a.Light-emitting component 3 may be mounted at installation pad 2c1.The one of substrate 2 At least one light-emitting component 3 can be set in a surface.In Fig. 1 into Vehicular illumination device 1 shown in Fig. 3, there are two settings Light-emitting component 3.In the case where a plurality of light-emitting elements 3 are arranged, a plurality of light-emitting elements 3 can be serially connected.Shine member Part 3 for example can be only fitted on the central axis in the width direction of first part 2a.But the configuration of light-emitting component 3 not only limits In this.

Light-emitting component 3 is such as can be light emitting diode, Organic Light Emitting Diode, laser diode.Flow through the member that shines The electric current of part 3 for example can be set to 5mA or more and 50mA or less.

The form of light-emitting component 3 is simultaneously not particularly limited.

Light-emitting component 3 for example can be PLCC (plastic chip of the Plastic Leaded Chip Carrier/ with lead Carrier) type etc. surface mount type light.In addition, the light-emitting component 3 that Fig. 1 is illustrated into Fig. 3 is the hair of surface installing type Optical element.

The light-emitting component such as being also possible to the bullet type with lead of light-emitting component 3.

Also, light-emitting component 3 can be to be shone using what COB (Chip On Board/ chip on board) technology was packaged Element.When light-emitting component 3 is the light-emitting component 3 being packaged using COB technology, chip can be set on first part 2a The light-emitting component 3 of shape, the wiring that light-emitting component 3 is electrically connected with Wiring pattern 2c, the frame-shaped portion for surrounding light-emitting component 3 and wiring Part, the inside that frame-shaped component is set and covering luminous element 3 and the sealing of wiring etc..Alternatively, it is also possible to omit frame-shaped portion Part and sealing.Also, sealing may include fluorophor.Fluorophor for example can be fluorophor (yttrium-aluminium-garnet system, YAG system Fluorophor) etc..In addition, the type of fluorophor is not only limited in illustrating.The type of fluorophor can also be changed, suitably so as to basis The purposes etc. of Vehicular illumination device 1 obtains desired illuminant colour.

The light emergence face of light-emitting component 3 and the surface of substrate 2 are substantially parallel.Light-emitting component 3 is mainly towards the table with substrate 2 Project light in the vertical direction in face.If light-emitting component 3, light distribution characteristic secundly is arranged on a surface of substrate 2.But It is that, if Vehicular illumination device 1 is used for body light (for example, compartment lamp, panel lamp, reading lamp etc.), need to only be used to vehicle The side irradiation light of lighting device 1.Therefore, in the case where Vehicular illumination device 1 is used for body light, preferably make its tool There is above-mentioned light distribution characteristic.

Quantity, size, configuration of light-emitting component 3 etc. are not limited solely to illustrate, can be according to the size of Vehicular illumination device 1 Or purposes etc. suitably changes quantity, size, the configuration etc. of light-emitting component 3.

Also, resistance or diode etc. are also provided in Vehicular illumination device 1.

Resistance can be set at least one surface in a surface of substrate 2 and another surface.In addition, if Light-emitting component 3 is set on one surface of substrate 2 and resistance is set on another surface of substrate 2, then is able to suppress from hair The light that optical element 3 projects stops by resistance absorption or by resistance.

Resistance is electrically connected with Wiring pattern 2c.Resistance can be connected in series via wiring 2c3 with light-emitting component 3.

Resistance may be used as current-limiting resistance.

Also, resistance can be also used for the brightness of adjustment light-emitting component 3.There are waves for the forward voltage characteristic of light-emitting component 3 Dynamic, therefore, if the application voltage between anode terminal and ground terminal is set as constant, (light is logical for the brightness of light-emitting component 3 Amount, brightness, luminous intensity, illumination) fluctuation can be generated.Therefore, the value adjustment of the electric current of light-emitting component 3 will be flowed through by resistance For in predetermined range, so that the brightness of light-emitting component 3 be made to fall into predetermined range.At this point, passing through the resistance for changing resistance Value, the value that can will flow through the electric current of light-emitting component 3 control in predetermined range.

Resistance for example can be the resistor of surface installing type, the resistor (metal-oxide film resistor) with lead, The membranaceous resistor etc. formed by silk screen print method etc..Quantity, size, configuration of resistance etc. are not limited to illustrate, Quantity, size, the configuration etc. of resistance can suitably be changed according to the quantity of light-emitting component 3 or specification etc..

In addition, if being easily adjusted its resistance value using membranaceous resistor.Therefore, when being adjusted to resistance value, It is preferable to use membranaceous resistors.At this point, adjusting resistance value in the following way.Firstly, by silk screen print method etc. in substrate 2 Surface form membranaceous resistor (resistance).Then, laser is irradiated to resistance, removes a part of resistance.Moreover, resistance Resistance value changes according to size of removal part etc..At this point, if a part of removal resistance, resistance value will increase.

Diode can be set at least one surface in a surface of substrate 2 or another surface.In addition, if Light-emitting component 3 is set on a surface of substrate 2 and diode is set on another surface of substrate 2, then is able to suppress The light projected from light-emitting component 3 stops by diode absorption or by diode.

Diode is electrically connected with Wiring pattern 2c.Diode can via Wiring pattern 2c and with 3 company of series connection of light-emitting component It connects.

It, can be in addition, in the case where at least one party in resistance and diode is arranged on another surface of substrate 2 The configuration of shape or conductive through hole based on the Wiring pattern 2c on a surface and another surface that substrate 2 is arranged in, will At least one party and light-emitting component 3 in resistance and diode are connected in series.

Diode is in order not to allow backward voltage to be applied to light-emitting component 3 and reversed impulsive noise is not allowed to be applied to hair Optical element 3 and be arranged.

In addition, transistor can be set on a substrate 2 as needed, the electrical components such as capacitor and integrated circuit.

Also, in surface (another table of substrate 2 with the side opposite side for being provided with light-emitting component 3 of substrate 2 Face) on be arranged Wiring pattern 2c when, can also be using at least part of Wiring pattern 2c as radiating part 2f.

Also, it as needed can also be in the table with the side opposite side for being provided with light-emitting component 3 for being set to substrate 2 Diode, transistor, capacitor and integrated circuit etc. are installed electrical on the Wiring pattern 2c on face (basic 2 another surface) Element.

Also, a part of covering Wiring pattern 2c or the covering portion of membranaceous resistor etc. can also be set.Covering portion Such as it can be film, the film made of glass material etc. formed by white solder mask.

In addition, resistance, diode and transistor etc. are without having to setting on a substrate 2.For example, it is also possible to by resistance, Diode and transistor are arranged on the lamps apparatus for vehicle of installation Vehicular illumination device 1.

But if on a substrate 2 by settings such as resistance, diode and transistors, it is not necessary that previous vehicle lamp is transformed The protection and multifunction of Vehicular illumination device 1 can be realized in tool.

Cover 4 covering luminous elements 3.Therefore, if setting cover 4, can be realized the protection of light-emitting component 3.At this point, it is preferred that covering 4 covering luminous elements 3 and its surrounding.Thereby, it is possible to reduce the amount of the material of cover 4, it is thus possible to reduce the manufacturing cost of cover 4.

Cover 4 has injection part 4a, end 4b and interconnecting piece 4c.

Injection part 4a and end 4b has defined wall thickness, and its side for being provided with light-emitting component 3 for covering substrate 2. The region for being provided with light-emitting component 3 of injection part 4a and end 4b covering first part 2a.The setting of light-emitting component 3 is being emitted portion The space interior of 4a and end 4b zoning.

Also, the light emergence face of injection part 4a covering luminous element 3, and extend along the longitudinal direction of substrate 2.End 4b It is separately positioned on the both ends of injection part 4a.

In addition, the resin with translucency can also be filled in the space interior for being emitted portion 4a and end 4b zoning.It fills out The resin filled for example can be silicone resin etc..If potting resin, the protection of light-emitting component 3 becomes relatively reliable.

Also, the perforative window of thickness direction along wall thickness can be set in at least one party in injection part 4a and end 4b 4d.Window 4d for example can be set to hole or notch etc..The window 4d illustrated in Fig. 1 is notch.

If window 4d is arranged, the space for being emitted portion 4a and end 4b zoning can be connected to outside.Therefore, pass through window 4d can generate air stream, it is thus possible to the temperature of light-emitting component 3 be inhibited to become excessively high.

Also, if the window 4d of incision-like is set, can the inside of window 4d be arranged the electrical components such as capacitor (for example, With reference to Fig. 8).Therefore, the type and quantity of installable electrical component can be increased.

Window 4d is at least provided with one.At this point, being easy to produce air stream if being provided with multiple window 4d.

Here, if setting window 4d, it is likely that will lead to the change of light distribution characteristic.Therefore, as shown in figure 3, it is preferred that by window The distance between the end of 2 side opposite side of substrate and the substrate 2 of 4d is set as less than the light emergence face of light-emitting component 3 (upper table The distance between face) and substrate 2.Even if window 4d is arranged as a result, also it is able to suppress and light distribution characteristic is affected.

The light projected from light-emitting component 3 is mainly from injection part 4a to external irradiation.Therefore, injection part 4a is by with translucency Material be made.Organic materials such as the inorganic material such as glass, transparent resin etc. can be used for example in material with translucency.Thoroughly Allyl resin, polycarbonate resin etc. can be used for example in ming tree rouge.

End 4b and interconnecting piece 4c can be formed by the material with translucency, can also be by not having the material of translucency It is formed.Material identical with the material of injection part 4a can be used in the material of end 4b and interconnecting piece 4c, and difference also can be used Material.Injection part 4a, end 4b and interconnecting piece 4c for example can be formed as one by injection molding method, insert-molding method etc. Body.

Also, injection part 4a and end 4b also can have the function of making light diffusion or scattering etc..For example, can project The inner surface of portion 4a and end 4b are coated with the diffusants such as titanium oxide, or can also form injection by the material for being mixed with diffusant Portion 4a and end 4b.

Also, injection part 4a and end 4b also can have the function of lens or reflecting mirror etc..

That is, injection part 4a and end 4b can have both the function of protection light-emitting component 3 and for projecting from light-emitting component 3 The function of the optical system of light.

The outer shape of injection part 4a can be considered the function of optical system and set.For example, as shown in Figure 1, can incite somebody to action Injection part 4a is set as with convex curved surface.For example, the outer shape of injection part 4a can be set to semi-circular cylindrical.According to convex The injection part 4a of shape curved surface can then expand the light distribution of the central axis around first part 2a.

The end 4b of side blocks the opening of the connection side pad 2c2 of injection part 4a.The end 4b of the other side blocks injection Portion 4a with the opening that connect the side pad 2c2 opposite side.Two end 4b stand facing each other each other.Two end 4b can be formed as flat Smooth plate.The shape of two end 4b can be set to identical as the shape of the opening of injection part 4a.Two end 4b are plate-like, and It is arranged to substantially vertical with a surface of substrate 2.

When Vehicular illumination device 1 to be inserted into the lamp holder of lamps apparatus for vehicle, operator can press and connect pad The end 4b of the side 2c2 opposite side.When extracting Vehicular illumination device 1 from the lamp holder of lamps apparatus for vehicle, operator can be with Hand grabs the end 4b of the connection side pad 2c2.Therefore, handling Vehicular illumination device 1 can be easy.

Here, first part 2a can also be adhered to by injection part 4a and end 4b.But it if is penetrated using bonding agent The bond strength between portion 4a and end 4b and first part 2a will appear deviation out.At this point, if increasing the amount of bonding agent, it can The side that bonding agent flows out to 3 side of light-emitting component or bonding agent flows out to first part 2a can be will lead to.That is, if using viscous Agent is connect, then the management of bonding process becomes complicated.

In this regard, cover 4 involved in present embodiment is provided with interconnecting piece 4c.Interconnecting piece 4c, which is inserted in, to be arranged in first part In hole 2d, the notch 2e of 2a (substrate 2).

As shown in figure 3, interconnecting piece 4c is prominent from end 4b towards the side first part 2a.That is, interconnecting piece 4c is via end 4b Injection part 4a is set indirectly.One end 4b is provided with an interconnecting piece 4c.Two interconnecting piece 4c can be set into each other Face-off.Two interconnecting piece 4c can be arranged in X direction.Interconnecting piece 4c is in rodlike, and one end is connect with end 4b.Even The other end of socket part 4c is provided with claw 4c1.The side another interconnecting piece 4c that claw 4c1 stands facing each other toward each other is prominent.Two cards Pawl 4c1 can be set into stand facing each other each other.The surface 4c1a of the end side 4b of claw 4c1 can be set to flat face.Surface 4c1a The distance between end 4b can be set to and the sum of the thickness of the thickness of first part 2a (substrate 2) and radiating part 2f substantially phase Together.In the case where that will cover 4 and be mounted on first part 2a, surface 4c1a be contacted with first part 2a via radiating part 2f with hair The surface of 3 side opposite side of optical element.Therefore, cover 4 is kept by first part 2a.

That is, being provided with the claw 4c1 that cover 4 is releasably installed on to substrate 2 in interconnecting piece 4c.

Since cover 4 is installed on first part 2a by interconnecting piece 4c, it can make between cover 4 and first part 2a Bond strength become stable.Also, when that will cover 4 and be installed on first part 2a, only interconnecting piece 4c need to be inserted in hole 2d, cut In mouth 2e, it is thus possible to realize the simplification of manufacturing process, and then can be realized the decline of manufacturing cost.

If also, two interconnecting piece 4c being arranged in X direction, grab end 4b in pressing end 4b or hand and are extracted When, the position for being able to suppress cover 4 occurs misplacing or covering 4 breakages.

As described above, Vehicular illumination device 1 involved according to the present embodiment, can be realized the decline of manufacturing cost And the protection of light-emitting component 3.

In Fig. 4 (a) and be (b) for illustrating the schematic isometric of interconnecting piece 4ca involved in other embodiment.

In Fig. 4 shown in (a), interconnecting piece 4ca can be in the form of a column.At this point it is possible to by interconnecting piece 4ca indentation in setting the In the hole of a part of 2a or recess portion.

In Fig. 4 shown in (b), slit 4ca1 can also be set in interconnecting piece 4ca.If slit 4ca1 is arranged, it is easy to produce Raw elastic force.Therefore, cover 4 can be held in first part 2a by elastic force.

In Fig. 5 (a) and be (b) for illustrating the schematic sectional view of interconnecting piece 4cb involved in other embodiment.

In Fig. 5 shown in (b), compressed part 4cb1 can also be set in interconnecting piece 4cb.Can replace above-mentioned claw 4c1 and Compressed part 4cb1 is set.

The generation type of compressed part 4cb1 is as follows.Firstly, columnar interconnecting piece 4cb insertion is set as shown in (a) in Fig. 5 It is placed in the inside of the hole 2d of first part 2a or the inside of notch 2e.

Then, as shown in (b) in Fig. 5, make to be plastically deformed from the end of hole 2d or notch 2e interconnecting piece 4cb outstanding, from And form compressed part 4cb1.Compressed part 4cb1 for example can be by will be from the end of hole 2d or notch 2e interconnecting piece 4cb outstanding Heating melting or ultrasonic wave are melted and are formed.

The sectional dimension of sectional dimension of the sectional dimension of compressed part 4cb1 greater than hole 2d and notch 2e.Cover 4 is fixed as a result, In first part 2a.

The surface 4cb1a of compressed part 4cb1 be for example contacted with first part 2a via radiating part 2f with 3 side of light-emitting component The surface of opposite side.

As described above, two interconnecting pieces 4ca, 4cb are separately positioned on two end 4b of cover 4, and prominent towards substrate 2. At least one of the hole 2d, notch 2e and recess portion for being inserted into interconnecting piece 4ca are provided on substrate 2.Energy is provided on substrate 2 Enough it is inserted at least one of the hole 2d and notch 2e of interconnecting piece 4cb.Also, claw can be set in interconnecting piece 4c, 4ca, 4cb 4c1, slit 4ca1 and compressed part 4cb1 etc..

In addition, though the case where interconnecting piece 4ca, 4cb are set to the end 4b of cover 4 is instantiated herein, but interconnecting piece 4ca, 4cb also can be set in the part other than the 4b of end of cover 4.

In Fig. 6 (a) and be (b) for illustrating the schematic isometric of injection part 4aa, 4ab involved in other embodiment.

In Fig. 6 shown in (a), the surface of injection part 4aa to stand facing each other with light-emitting component 3 can be set to flat face.

In Fig. 6 shown in (b), the surface of injection part 4ab to stand facing each other with light-emitting component 3 can be set to concavity curved surface.

Then, Vehicular illumination device 11 involved in other embodiment is illustrated.

Fig. 7 is the diagrammatic top view of Vehicular illumination device 11.

Fig. 8 is the schematic sectional view along line B-B cutting of Vehicular illumination device 11 shown in Fig. 7.

Fig. 9 is the schematic isometric of cover 14.

In addition, in the drawings, arrow X indicates side when Vehicular illumination device 11 to be inserted into the lamp holder of lamps apparatus for vehicle To.

As shown in Figures 7 and 8, Vehicular illumination device 11 is provided with substrate 12, light-emitting component 3, cover 14 and electrical component 13。

Substrate 12 can be set to identical as aforesaid substrate 2.But the flat shape of substrate 12 is rectangle.Therefore, substrate 12 width dimensions Wb can be set to constant.The width dimensions Wb of substrate 12 can be set to the broad-ruler with above-mentioned second part 2b Very little Wb is identical.The longitudinal direction of substrate 12 can be consistent with X-direction.

A surface of substrate 12 is provided with Wiring pattern 2c.Wiring pattern 2c has installation pad 2c1, connection pad 2c2 and wiring 2c3.Installation pad 2c1, connection pad 2c2 and wiring 2c3 can be set to the installation pad with aforesaid substrate 2 2c1, connection pad 2c2 and wiring 2c3 are identical.But Vehicular illumination device 11 is provided with a light-emitting component 3, and The both ends of light-emitting component 3 are configured with one group of installation pad 2c1.

Substrate 12 is provided with the perforative hole 12d of through-thickness.Hole 12d can be set to the hole 2d phase with aforesaid substrate 2 Together.

Also, the surface for being provided with the side opposite side for installing pad 2c1 is provided with radiating part 2f in substrate 12. The inner wall of the perforative hole 12d of the through-thickness of substrate 12 is provided with heat transfer part 2g.Vehicular illumination device shown in Fig. 7 11 are provided with one group of installation pad 2c1, therefore, one group of radiating part 2f and heat transfer part 2g can be set.Radiating part 2f and heat transfer part 2g can be set to structure same as described above, therefore description is omitted.

Cover 14 covering luminous elements 3.Material, function and the manufacturing method of cover 14 etc. are identical as above-mentioned cover 4.

As shown in Figure 7 to 9, cover 14 has injection part 14a and interconnecting piece 14c.

Injection part 14a has defined wall thickness, and its side for being provided with light-emitting component 3 for covering substrate 12.Injection part The region for being provided with light-emitting component 3 of 14a covering substrate 12.The inside of injection part 14a is arranged in light-emitting component 3.Injection part 14a Outer surface can be set to convex curved surface.The appearance of injection part 14a can be set to a part of ball.For example, injection part 14a's is outer Sight can be hemisphere.

In addition, the resin with translucency can also be filled in the inside of injection part 14a.The resin of filling for example can be Silicone resin etc..If potting resin, the protection of light-emitting component 3 becomes relatively reliable.

Also, the perforative window 14d of thickness direction along wall thickness can be set in injection part 14a.Window 14d can be set to it is upper The window 4d for stating cover 4 is identical.

Interconnecting piece 14c can be set to identical as the interconnecting piece 4c of above-mentioned cover 4.But be set to the end of interconnecting piece 14c Claw 14c1 is prominent towards the side opposite with the side another interconnecting piece 14c to stand facing each other each other.The surface 14c1a of claw 14c1 can To be set as identical as the surface 4c1a of above-mentioned claw 4c1.Also, interconnecting piece 14c is directly arranged at injection part 14a.

Also, above-mentioned slit 4ca1 or compressed part 4cb1 also can be set in interconnecting piece 14c.

Electrical component 13 is electrically connected with Wiring pattern 2c.Electrical component 13 for example can be resistance, diode, capacitor and Integrated circuit etc..At least one surface in a surface of substrate 12 and another surface can be set in electrical component 13 On.In the Vehicular illumination device 11 illustrated in Fig. 7 and Fig. 9, it is luminous first that being provided with for substrate 12 is arranged in electrical component 13 The surface of the side of part 3.At this point it is possible to which electrical component 13 is arranged in the inside of the window 14d of incision-like.It can thereby, it is possible to increase The type and quantity of the electrical component 13 of installation.

More than, several embodiments of the utility model are illustrated, but these embodiments are merely illustrative, There is no the intentions for limiting utility model range.These new embodiments can be implemented in a manner of various other, not depart from In the range of the utility model aims, various omissions, displacement, change etc. can be carried out.These embodiments or its variation belong to In in the scope of the utility model or objective, and it is also contained in the utility model recorded in technical solution and its equivalent range It is interior.In addition, above-mentioned each embodiment also can be combined with each other implementation.

Claims (5)

1. a kind of Vehicular illumination device, which is characterized in that have:

Substrate；

At least one light-emitting component is arranged on a surface of the substrate；

Cover covers the light-emitting component；

A pair of connection pad, be arranged on a surface of the substrate, and its outside for being located at the cover and with the hair Optical element electrical connection,

The cover includes

Injection part covers the light emergence face of the light-emitting component；

Interconnecting piece is directly or indirectly arranged in the injection part and protrudes towards the substrate,

At least one of hole, notch and the recess portion being inserted into for the interconnecting piece are provided in the substrate.

2. Vehicular illumination device according to claim 1, which is characterized in that

It is also equipped with:

Pad is installed, is arranged on a surface of the substrate, and the light-emitting component is installed on the installation pad；

Another surface of the substrate is arranged in radiating part；

Heat transfer part, is arranged in the inner wall in the hole or the inner wall of notch, and one end side and the installation pad and is connected to At least one party's connection in the wiring of the installation pad, another side are then connect with the radiating part.

3. Vehicular illumination device according to claim 1 or 2, which is characterized in that

The interconnecting piece is provided with claw, the claw is used to the cover being releasably installed on the substrate.

4. Vehicular illumination device according to claim 1 or 2, which is characterized in that

The interconnecting piece is provided with compressed part, the compressed part is used to the cover being fixed on the substrate.

5. Vehicular illumination device according to claim 1 or 2, which is characterized in that

The appearance of the injection part is set as a part of ball.