Flashlight with LED light sourceTechnical field
The present invention relates to flashlights, more particularly to use the flashlight of LED light source.
Background technology
As LED light is used for the increasingly increase of normal lighting, the flashlight (also referred to as electric portable lamp) with LED light sourceBecome more universal.Flashlight generally includes light source and one or more energy storage devices (battery or rechargeable battery), so thatIts is portable and independently of network supply.Can also include for rechargeable battery charging and/or for realizing the light modulation of light sourceElectronic device.
The insufficient problem of heat dissipation is frequently suffered from using the flashlight of LED light source or damage is easy in challenge operating environmentIt is bad.
Invention content
In view of the known prior art, the purpose of the present invention is to provide a kind of flashlights overcoming the above problem.
The purpose is realized by the flashlight according to independent claims.Preferred reality is provided by dependent claimsApply example.
Flashlight according to the present invention includes shell and the light source positioned at enclosure interior.Opening in shell allows by light sourceThe light of transmitting leaves shell.Light source includes LED, light shell outer cover and the double pin bases extended from light shell outer cover.Light source can beSingle element, i.e. LED, shell, double pin bases and light source other potential components (for example, lens or transparency cover) can be with notThe mode for opening or dismantling light source is allowed to be connected to each other.Light shell outer cover may include reflector or be configured to have reflectorShape.Particularly, light source can be MR8 types, MR11 types or MR16 types (MR：Multireflector, although using the MR types of LEDLight source usually lacks reflector, but still uses the title and shape) lamp.Double pin bases can be that GU5.3 pedestals are (usualFor MR16 light sources) or GU4 pedestals (being commonly used in MR8 and MR11 light sources).MR type light sources are configured to have sufficient heat dissipation,So as not to damage LED, because they are designed to work in the confined space.
In addition, MR type LED light sources are typically tunable optical.Therefore, flashlight can be equipped with dimming electronic device.
Flashlight includes the socket of double pin bases for removably receiving light source.This allows light source canIt is removed by the user and is replaced in the case where light source damages.If user needs flashlight with different operating parameter (examplesSuch as, brightness, beam angle, photochromic (for example, warm white, daylight, other colors) etc.) work, then user can also replace light source.ExampleSuch as, user can select to make flashlight to be capable of providing the light source of about 230lm (for example, LEDVANCE PARATHOM P MR1620 36 ° of 2.9 W/827 GU5.3) carry out the work long period or make flashlight be capable of providing about 620lm light source (for example,50 36 ° of 7.2 W/827 GU5.3 of LEDVANCE PARATHOM P MR16) carry out the work short period.
In a preferred embodiment, the shell of flashlight includes head cover and lamp housing, and head cover includes opening, launched by light sourceLight can pass through opening to leave shell.When light source is inserted into socket, light source is at least partially situated inside lamp housing, and byIt is arranged so that the light generated by light source is oriented at least partially in the opening in head cover.Head cover can be removably attached to lamp housingBody.Flashlight can design as follows：Socket can be inserted in light source or before socket removal, head cover must be from lamp housingBody removes.Therefore, light source can be fixed in lamp housing by head cover.
In a preferred embodiment, head cover and lamp housing are connected to each other via screw type attachment device, i.e. head cover and lamp housingIt can be provided with corresponding screw thread.Head cover and lamp housing can also be attached to each other by bayonet type attachment device, i.e., head cover andOne of lamp housing can be provided with one or more protrusions or pin, and the other of head cover and lamp housing can be provided withOne or more corresponding grooves or slit (usually having L shape), in groove or slit, protrusion or pin can be guided.
In a preferred embodiment, head cover includes the round flange around opening.The internal diameter of round flange can be less than light sourceOuter diameter so that light source can be fixed in lamp housing by flange.
Therefore, user is easy to replace the light source of flashlight by following steps：Head cover is removed (for example, logical from lamp housingCross and unscrew), by removed from socket old light source double pin bases and by double pin bases of new light sources be inserted into socket in comeLight source is replaced, and head cover is re-attached to lamp housing.
In a preferred embodiment, flashlight includes one or more rechargeable energy storage devices (for example, charging electricityPond) and charged electrical unit for being recharged to rechargeable energy storage device.Rechargeable energy storage deviceIt can be removed from flashlight or they can be fixedly mounted in flashlight.Particularly, flashlight may include one,The rechargeable energy storage device of two, three, four, or more.Preferably, flashlight may include lithium ion chargingBattery (for example, 18650 type Li-Ion rechargeable batteries).One 18650 type lithium ion battery has under 3.7V direct currents up toThe capacity of about 2500mAh.Including three lithium ion batteries and with being up to about the total of 7500mAh under 11.1V direct currents therefore,The flashlight of capacity can make flashlight with 20 36 ° of 2.9 W/827 GU5.3 light source of LEDVANCE PARATHOM P MR16It works about 9.6 hours or with 50 36 ° of 7.2 W/827 GU5.3 light source working about 3.9 of LEDVANCE PARATHOM P MR16Hour.
In a preferred embodiment, shell further includes battery case.Energy storage device (battery or rechargeable battery) can be down toIt is at least partially located in battery case.Battery case can be removably attached to lamp housing or it can be with lamp housing at oneBody.If battery case is removably attached to lamp housing, when energy storage device does not have energy or when rechargeableWhen energy storage device has lost some or most of capacity, can replace including energy storage device battery case (orIts element).
In a preferred embodiment, charged electrical unit includes the USB socket of the USB plug for receiving charging unit.USBSocket can be A types, Type B, mini-A types, mini-B types, micro-A types, micro-B types or c-type.ToolThere is the charging units of USB micro-B type plugs very universal since it is used together with smart mobile phone.Therefore, it is possible to useThe charging unit flashlight that many users have possessed recharges.
Description of the drawings
Each preferred embodiment of the present invention will hereinafter be explained with reference to the drawings.In the accompanying drawings：
Fig. 1 is the decomposition diagram of the embodiment of flashlight according to the present invention；
Fig. 2 is the decomposition diagram of the battery case of the embodiment of flashlight according to the present invention；
Fig. 3 is the perspective view of the embodiment of flashlight according to the present invention；And
Fig. 4 is another perspective view of the embodiment of flashlight according to the present invention.
Specific implementation mode
Hereinafter, the preferred embodiment of the present invention is described in refer to the attached drawing.Identical, similar element hasThe element of same effect is presented with like reference characters in multiple attached drawings.It may omit and the repetition of these elements is retouchedIt states, to prevent the description of redundancy.
Fig. 1 shows the decomposition diagram of the embodiment of flashlight according to the present invention.Flashlight have include head cover 1,The shell of lamp housing 2, battery case 3 and base unit 4.Head cover 1 removedly connects via the screw thread on head cover 1 and lamp housing 2It is connected to one end of lamp housing 2.The other end of lamp housing 2 is removably attached to via the screw thread on lamp housing 2 and battery case 3One end of battery case 3.The other end of battery case 3 is removedly connected via the screw thread on battery case 3 and base unit 4To base unit 4.
O-ring 5 between lamp housing 2 and battery case 3 and between battery case 3 and base unit 4 is (such as by rubberIt is made) it can ensure that assembled shell is waterproof.The sealing of another O-ring (not shown) or any other type can alsoBetween head cover 1 and lamp housing 2, and particularly it is desirably integrated into head cover 1.
MR16 LED light 6 with double pin bases 7 is inserted into the respective socket (not shown) inside lamp housing 2.Head cover 1With the flange 8 extended radially inwardly.For flange 8 around opening, the light generated by lamp can leave lamp housing 2 by the opening.Opening can be closed by translucent (especially transparent) lid or lens, or opening can be unlimited.
The internal diameter of flange 8 is less than the outer diameter of MR16 LED light 6 (it is about 50mm).Therefore, as long as head cover 1 is attached to lampShell 2, lamp 6 cannot be removed from lamp housing 2 or be inserted into lamp housing 2.
Lamp housing 2 further includes one or more buttons 9, and button 9 is used to operate flashlight, that is, be used to open/close light sourceAnd/or light source is dimmed.Control unit 10 includes for driving the LED of light source (to be especially used to be provided by battery 12Voltage be converted to the operating voltage of LED, such as the 12V DC electricity for MR16 LED light) and/or tune for controlling light sourceThe electronic device of light, and it is located at enclosure interior, for example, in the region of lamp housing 2 and/or battery case 3.Control unit 10It is electrically connected to one or more operation buttons 9.
Battery unit 11 is located inside battery case 3.Battery unit is illustrated in greater detail in the decomposition diagram of Fig. 211 embodiment.Battery unit may include one or more rechargeable batteries 12, such as 18650 type lithium ion batteries.Battery 12It can be maintained in the base unit 13 of battery unit 11, base unit 13 has the inside for firmly holding battery 12Shape.Battery 12 for being electrically connected inside battery unit 11 and for battery unit 11 to be electrically connected to base unit 4 and controlTwo printed circuit boards (PCB) 14 of unit 10 processed can be located at the opposite end of base unit 13, and can pass throughWire rod 15 is connected to each other.
As shown in figure 3, base unit 4 include the corresponding USB plug for receiving charging unit USB micro-B types orC-type socket 16.For control battery 12 charging charging electronics can be located at base unit inside and with USB socket 16It is electrically connected with corresponding PCB 14.
Fig. 3 and Fig. 4 all illustrates the perspective view of the embodiment of flashlight according to the present invention.These attached drawings are specifically illustrated inEach component of the shell fitted together.The component (especially lamp housing 2 and/or battery case 3) of shell may include oneA or multiple structured surfaces, the structured surface hold flashlight for user and/or are used for purpose of design securely.Shown in embodiment, the decline of lamp housing 2 is being provided with annular groove and spine in the region of operation button 9,To realize this structured surface.
In Fig. 4, still further it can be seen that how MR16 LED light 6 is fixed in lamp housing 2 by the flange 8 of head cover 1.
Although explaining and describing the present invention in detail by above-described embodiment, it is real that the present invention is not restricted to theseApply example.Without departing from the scope of the appended claims, those skilled in the art can obtain other variations.
In general, unless such as by clearly being excluded term " there are one only ", otherwise " one (a) " or " one (an) " canTo be understood to singular or plural, the especially meaning with "at least one", " one or more " etc..
In addition, unless expressly excluded, otherwise numerical value may include exact value and common tolerance interval.
Without departing from the scope of the invention, it (especially in various embodiments) shows in embodimentFeature can be combined or be replaced.
Reference numerals list
1 head cover
2 lamp housings
3 battery cases
4 base units
5 O-rings
6 light sources
7 pairs of pin bases
8 flanges
9 operation buttons
10 control units
11 battery units
12 batteries
13 base units
14 printed circuit boards
15 wire rods
16 USB sockets