CN103032798B

CN103032798B - A kind of LED desk lamp

Info

Publication number: CN103032798B
Application number: CN201110290722.1A
Authority: CN
Inventors: 张汉平; 梁怀清
Original assignee: SHANGHAI MEIDIXIN ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHANGHAI MEIDIXIN ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2016-09-28
Anticipated expiration: 2031-09-29
Also published as: CN103032798A

Abstract

The present invention relates to technical field of lamps, disclose a kind of LED desk lamp.In order to provide a kind of technology to conceive different technical schemes, the technical scheme of invention is as follows.A kind of LED desk lamp, including: LED lamp tube assembly (ZJ) etc.；It is characterized in that: described lamp stand includes: the body of rod, LED light (LED Z), battery case, connect connector assembly, select switch (K), three batteries；The mouth that picks and places of battery case is positioned at the back side of the body of rod；Three batteries are respectively positioned in battery case；LED light is emerging in the front surface of the body of rod；The surface selecting switch (K) is exposed to the front surface of the body of rod；Switch (K) is selected to include: input stake (K 0), four output stakes；Connect connector assembly to include: connect plug (CT), connect socket (CZ), positive wire (CT 1), cathode conductor (CT 2)；Described connection plug (CT) has positive contact point and cathode contact point.Provide the benefit that: economical and practical is comprehensive good, and price is low, strong adaptability.

Description

A kind of LED desk lamp

Technical field

The present invention relates to technical field of lamps, particularly relate to a kind of LED desk lamp.

Background technology

LED illumination is the lighting engineering of a new generation, and it has the many merits such as radiationless, pollution-free, energy saving, is the perfect light source of green illumination.

But, the LED desk lamp of prior art, suit the light fixture that user is actually needed the most, for the area often or once in a while having a power failure, the LED lamp of prior art, it is economical and practical comprehensive preferable not enough.

Above-mentioned economical and practical comprehensive not ideal enough, its particular content has: tending not to take into account normal illumination and the needs of power-off illumination, and can take into account the light fixture that both illuminations need, its manufacturing cost is high, and circuit is complicated；Further, for that often have a power failure or have a power failure once in a while, long-time that have a power failure or the short time has a power failure or does not have a power failure, it is often to have turned round and look at one, lose other end.Therefore, prior art is not provided that complete, economical and practical integrated technology scheme.

Summary of the invention

Prior art LED lamp has, and for overall technical architecture, it is economical and practical comprehensive not ideal enough, in order to solve this technical problem, and provides the design of a kind of technology different technical scheme, and technical scheme is as follows.

1. a LED desk lamp, including: LED lamp tube assembly, lampshade, lamp stand, lamp socket, circuit；Described lamp stand, its top is connected with lampshade, and its underpart is connected with lamp socket；

Described lamp stand includes: the body of rod, LED light, battery case, connects connector assembly, selects switch, the first battery, the second battery, the 3rd battery；

What described battery case was provided for fetching battery picks and places mouth, picks and places mouth and is positioned at the back side of the body of rod；

The first described battery, the second battery, the 3rd battery, this three is respectively positioned in battery case；

Described LED light, its fluorescent tube front end is emerging in the front surface of the body of rod；

Described selection switch, its surface is exposed to the front surface of the body of rod；Selection switch includes: input stake, the first output stake, the second output stake, the 3rd output stake, the 4th output stake；

Described connection connector assembly includes: connect plug, connects socket, positive wire, cathode conductor；Described connection plug has positive contact point and cathode contact point；

Positive wire, its one end and the positive contact point electrical connection being connected plug, the positive terminal that its other end exports with DC source electrically connects；Cathode conductor, its one end and the cathode contact point electrical connection being connected plug, the negative pole end that its other end exports with DC source electrically connects；

Connect socket and be positioned at the downside of battery case；Connect socket there are three terminals, three terminals respectively: the first terminals, the second terminals, the 3rd terminals；

When connecting plug and extracting connection socket, connect the second terminals in socket and the electrical connection of the 3rd terminals；

After connection plug once inserts connection socket, a, b, c situation is just had to occur in the lump: a. the second terminals and the 3rd terminals cut off electrical connection；B. the positive contact point connecting plug and the first terminals electrical connection being connected socket；C. the cathode contact point connecting plug and the second terminals electrical connection being connected socket；

Connecting the first terminals of socket, the first anode, negative pole, the second anode, negative pole, the 3rd anode, negative pole, connect the second terminals of socket, they sequential series connect；

Connect the first terminals of socket, 3rd current-limiting resistance, LED light positive pole, negative pole, select the first output stake of switch, and sequential series connects, or, connect the first terminals of socket, LED light positive pole, negative pole, the 3rd current-limiting resistance, selecting the first output stake of switch, sequential series connects；

3rd anode, the first diode cathode, positive pole, the first current-limiting resistance, select the first output stake of switch, sequential series connects, or, the 3rd anode, the first current-limiting resistance, first diode cathode, positive pole, select the first output stake of switch, and sequential series connects；3rd battery cathode, the second diode cathode, negative pole, the second current-limiting resistance, select the first output stake of switch, sequential series connects, or, the 3rd battery cathode, the second current-limiting resistance, second diode cathode, negative pole, select the first output stake of switch, and sequential series connects；

Described LED lamp tube assembly, its one end electrically connects with the first anode, and its other end electrically connects with the 3rd output stake selecting switch.

2. the first battery described in, the second battery, the 3rd battery, the facilities of this three battery is any one in following three:

A. this three battery is 1.2V rechargeable battery；

B. this three battery is the aneroid battery of 1.5V；

The most both it had been equipped with the rechargeable battery of above-mentioned a situation as conventional battery, and had been equipped with again the aneroid battery of above-mentioned b situation as reserve battery, in the case of power-off and rechargeable battery electric energy deficiency, replaces rechargeable battery with aneroid battery.

3. the DC source described in, includes inside it: rectification circuit, filter circuit, direct current regulation circuit；The input of DC source is connected with electric main, and DC source is by positive terminal and negative pole end output unidirectional current, and galvanic magnitude of voltage is 5V ± 5%.

4. the desk lamp described in includes: USB plug, and matching used with USB plug have USB socket；Described positive wire, its head end electrically connects with the positive terminal of USB plug, its tail end and the positive contact point electrical connection being connected plug；Described cathode conductor, its head end electrically connects with the negative pole end of USB plug, its tail end and the cathode contact point electrical connection being connected plug；

Described DC source and described USB socket, for any one in following four:

A. described DC source is direct-current-output type power supply adaptor, and the outfan of direct-current-output type power supply adaptor exports unidirectional current by USB socket；

B. described DC source is charger for mobile phone, and the outfan of charger for mobile phone exports unidirectional current by USB socket；

C. described DC source is the D.C. regulated power supply in personal desktop computer；D.C. regulated power supply, its input is connected with alternating current power supply, and its outfan exports unidirectional current by the USB socket that personal desktop computer is intrinsic；

D. the described DC power supply apparatus that DC source is notebook computer；DC power supply apparatus, its input is connected with alternating current power supply, and its outfan is connected with notebook computer；Notebook computer is by intrinsic USB socket output unidirectional current；

In above-mentioned a, b, c, d, the USB socket in its any technical scheme, all by the connection with USB plug, it is achieved output unidirectional current.

5. the LED lamp tube assembly described in includes more than one branch road；Two or more branch road, each branch road is for being connected in parallel；

Each branch road is respectively provided with following a and b character:

A. each branch road includes: a branch road current-limiting resistance and a LED light emitting diode；

B. the electrically connecting as of each branch road: the first anode, branch road current-limiting resistance, the positive pole of LED light emitting diode, negative pole, select the 3rd output stake of switch, sequential series connects；Or, the first battery B1 positive pole, the positive pole of LED light emitting diode, negative pole, branch road current-limiting resistance, select the 3rd output stake of switch, sequential series connects.

6. the LED lamp tube assembly described in includes: a total current-limiting resistance, plural LED light emitting diode；

All of LED light emitting diode, they in the same direction parallel connection become LED row；In other words, all of LED light emitting diode, their positive pole is connected, and their negative pole is connected；

First anode, total current-limiting resistance, LED row positive pole, negative pole, select the 3rd output stake of switch, sequential series connects；Or, the first anode, LED row positive pole, negative pole, total current-limiting resistance, select the 3rd output stake of switch, sequential series connects.

7. the battery case described in includes: battery case main body, is conductively connected part group, lid；By being conductively connected part group, both having realized the first anode, negative pole, the second anode, negative pole, the 3rd anode, negative pole sequential series electrically connect, and realize again the inside and outside electrical connection of box；Lid is positioned at the opening part of battery case main body；Battery case main body is integrally manufactured with the body of rod；Or, battery case main body manufactures with body of rod split, again by battery case main body and body of rod split assembly connection after split manufacture.

8. the lamp stand described in, its top is rotationally connected with lampshade, and its underpart is rotationally connected with lamp socket；

The body of rod includes: pre-structure body, rear structure, battery case cover plate, and printed substrate is conductively connected part group；Pre-structure body and the fixing connection of rear structure；

Offer in the position at the front surface place of pre-structure body: for installing the instruction installing hole of LED light, for installing the switch installing hole selecting switch；The mounting post that the back of pre-structure body is conformed with, this mounting post is used for installing printed substrate；The lower position at pre-structure body back is provided with the first retaining structure, and the first retaining structure under, instruction installing hole, switch installing hole and mounting post three are all upper；

Rear structure is provided with battery case agent structure；Described battery case agent structure is rectangular cavity structure, and rectangular cavity caves in forward and opens wide backwards；Rectangular cavity structure includes: upper wall, lower wall, left wall, right wall, diapire；

Battery case cover plate is installed at the place of opening wide backwards of rectangular cavity；Described installation refers to by installing screw realization installation, or, described installation refers to be provided with between rear structure and cover plate hole clipping bayonet arrangement, realizes snap-in installation by hole clipping bayonet arrangement；

Described connection socket, its structure includes: jack and installation draw-in groove；Described rear structure, position, its underpart is provided with the second retaining structure；The first described retaining structure and the second retaining structure are correspondingly arranged, and these two retaining structures constitute complete installation retaining structure；By installing draw-in groove and complete installation retaining structure, connect socket and the body of rod realizes connecting；Connection socket after connection, its jack is down.

9. the first diode described in, the nominal value of its forward conduction tube voltage drop is 0.7V；The second described diode, the nominal value of its forward conduction tube voltage drop is 0.3V.

The invention has the beneficial effects as follows:

Economical and practical is comprehensive good, price is low, strong adaptability, can take into account normal illumination and the needs of power-off illumination simultaneously, be no matter often have a power failure or have a power failure once in a while, for a long time or the short time have a power failure or do not have a power failure, the most take into account, and low cost of manufacture, circuit are simple.

Such as, the area not having a power failure, can not placing battery, this is the technical scheme of least cost；Have a power failure once in a while, aneroid battery can be inserted to apply emergent need, be a kind of technical scheme only increasing low expense；Often have a power failure, place rechargeable battery and solve illumination；Ultra-long time has a power failure, and illuminates to reach continuation after the electric energy of rechargeable battery is exhausted, again with aneroid battery displacement.

Further, the advantage that multiple alternative charging technique scheme has zero cost；Owing to having used the existing common electric of most family in these charging technique schemes, so not needing extra increase expense because of charge function to be added.

Additionally, it is provided that highlight illumination pattern and low-luminance mode illumination are selective.

Additionally, single LED light, not only circuit is simple, and be enough to reflect the various states of light fixture.

In sum, the present invention has the overall merit of globality.

Accompanying drawing explanation

Fig. 1 is one of circuit diagram of invention desk lamp, and in figure, reflection is to connect plug to be not inserted into connecting the situation in socket, so drawing does not draws connection plug yet, also has, and the LED lamp tube assembly in figure is single branch road；

Fig. 2 is the two of the circuit diagram of invention desk lamp, and in figure, reflection is to connect plug to insert situation about connecting in socket；

Fig. 3 is the three of the circuit diagram of invention desk lamp, and the LED lamp tube assembly in figure has two branch roads；

Fig. 4 is the four of the circuit diagram of invention desk lamp, and the LED lamp tube assembly in figure has N number of branch road；

Fig. 5 is the five of the circuit diagram of invention desk lamp, and the LED lamp tube assembly in figure has a total current-limiting resistance and two LED light emitting diodes；

Fig. 6 is the six of the circuit diagram of invention desk lamp, and the LED lamp tube assembly in figure has a total current-limiting resistance and N number of LED light emitting diode；

Fig. 7 is voltage mark figure, compared to Figure 1 relatively, at some places increases the picture mark of voltage swing (magnitude of voltage of mark is preferable theoretical voltage), and selects the input stake of switch to electrically connect with the 3rd output stake；In this figure, LED lamp tube assembly is provided electric energy by battery and is highlight illumination state；

Fig. 8 is voltage mark figure, compared to Figure 1 relatively, at some places increases the picture mark of voltage swing (magnitude of voltage of mark is preferable theoretical voltage), and selects the input stake of switch to electrically connect with the second output stake；In this figure, LED lamp tube assembly is provided electric energy by battery and is low-light level illumination condition；

Fig. 9 is charging schematic diagram, and in figure, the dotted line of band arrow is the glide path of charging current；

The 5V unidirectional current that Figure 10 is outside orders about the schematic diagram of LED lamp tube assembly maximum brightness illumination；

Figure 11 expresses: the input termination 220V electric main of charger for mobile phone, charger for mobile phone output 5V unidirectional current, unidirectional current delivers to USB plug and the situation etc. of follow-up transmission by USB socket；220V～representative in figure connect 220 volts of electric mains；

Figure 12 is the partial enlarged drawing in Figure 11 at I, and magnification ratio is 2.5: 1；

Figure 13 is the circuit diagram of the invention desk lamp that there is not battery；

Figure 14 is the drive circuit of the LED light under a certain situation, and the situation corresponding with this figure is: connects plug and pulls away out and select socket switch to be in input stake to export stake with first and electrically connect from connecting；

Figure 15 is the front view of invention desk lamp；

Figure 16 is the right view of Figure 15；

Figure 17 is the left view of Figure 15；

Figure 18 is the separation graph of Figure 15；

Figure 19 is the front view of rear structure；

Figure 20 is the left view of Figure 19；

Figure 21 is the right view of Figure 19；

Figure 22 is the sectional view of Figure 19；

Figure 23 is the front view of pre-structure body；

Figure 24 is the left view of Figure 23；

Figure 25 is the right view of Figure 23；

Figure 26 is the front view connecting socket；

Figure 27 is the left view of Figure 26；

Figure 28 is the right view of Figure 26；

Figure 29 is the top view of Figure 26；

Figure 30 is to connect one of socket and the schematic diagram installing retaining structure；

Figure 31 is the two of the schematic diagram connecting socket and installation retaining structure

Figure 32 is the three of the schematic diagram connecting socket and installation retaining structure；

Figure 33 is the four of the schematic diagram connecting socket and installation retaining structure；

Figure 34 is the five of the schematic diagram connecting socket and installation retaining structure；

Figure 35 is the six of the schematic diagram connecting socket and installation retaining structure.

Label declaration in figure

B1 is the first battery；B2 is the second battery；B3 is the 3rd battery；CT is to connect plug；CT-1 is positive wire；CT-2 is cathode conductor；CZ is to connect socket；CZ-1 is the first terminals；CZ-2 is the second terminals；CZ-3 is the 3rd terminals；CZ-C is to install draw-in groove；CZ-K is jack；D1 is the first diode；D2 is the second diode；LED-1 is LED light emitting diode；LED-2 is LED light emitting diode；LED-N is LED light emitting diode；LED-Z is LED light；K is to select switch；K-0 is input stake；K-1 is the first output stake；K-2 is the second output stake；K-3 is the 3rd output stake；K-4 is the 4th output stake；R1 is the first current-limiting resistance；R2 is the second current-limiting resistance；R3 is the 3rd current-limiting resistance；R4 is dropping resistor；RZ is total current-limiting resistance；RZX-1 is branch road current-limiting resistance；RZX-2 is branch road current-limiting resistance；RZX-N is branch road current-limiting resistance；SC is charger for mobile phone；USB-T is USB plug；USB-Z is USB socket；ZJ is LED lamp tube assembly；

1 is lampshade 1；2 is pre-structure body；3 is rear structure；4 is lamp socket；5 is light-passing board；6 is battery case main body；6-1 is upper wall；6-2 is lower wall；6-3 is left wall；6-4 is diapire；7 is to be conductively connected part group；8 is printed substrate；9 is screw；10 is mounting post.

The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.

Detailed description of the invention

First, present invention is described on the whole.

A kind of LED desk lamp of the present invention, including: LED lamp tube assembly ZJ, lampshade 1, lamp stand, lamp socket 4, circuit；Described lamp stand, its top is connected with lampshade 1, and its underpart is connected with lamp socket 4；

Particularly: described lamp stand includes: the body of rod, LED light LED-Z, battery case, connect connector assembly, select switch K, the first battery B1, the second battery B2, the 3rd battery B3；

The first described battery B1, the second battery B2, the 3rd battery B3, this three is respectively positioned in battery case；

Described LED light LED-Z, its fluorescent tube front end is emerging in the front surface of the body of rod；

Described selection switch K, its surface is exposed to the front surface of the body of rod；Switch K is selected to include: input stake K-0, the first output stake K-1, the second output stake K-2, the 3rd output stake K-3, the 4th output stake K-4；

Described connection connector assembly includes: connect plug CT, connects socket CZ, positive wire CT-1, cathode conductor CT-2；Described connection plug CT has positive contact point and cathode contact point；

Positive wire CT-1, its one end and the positive contact point electrical connection being connected plug CT, the positive terminal that its other end exports with DC source electrically connects；Cathode conductor CT-2, its one end and the cathode contact point electrical connection being connected plug CT, the negative pole end that its other end exports with DC source electrically connects；

Connect socket CZ and be positioned at the downside of battery case；Connect socket CZ there are three terminals, three terminals respectively: the first terminals CZ-1, the second terminals CZ-2, the 3rd terminals CZ-3；

When connecting plug CT and extracting connection socket CZ, connect the second terminals CZ-2 in socket CZ and the 3rd terminals CZ-3 electrical connection；

After connection plug CT once inserts connection socket CZ, a, b, c situation is just had to occur in the lump: a. the second terminals CZ-2 and the 3rd terminals CZ-3 cuts off electrical connection；B. the positive contact point connecting plug CT and the first terminals CZ-1 electrical connection being connected socket CZ；C. the cathode contact point connecting plug CT and the 3rd terminals CZ-2 electrical connection being connected socket CZ；

Connecting the first terminals CZ-1 of socket CZ, the first battery B1 positive pole, negative pole, the second battery B2 positive pole, negative pole, the 3rd battery B3 positive pole, negative pole, connect the second terminals CZ-2 of socket CZ, they sequential series connect；

Connect the first terminals CZ-1 of socket CZ, 3rd current-limiting resistance R3, LED light LED-Z positive pole, negative pole, select the first output stake K-1 of switch K, and sequential series connects, or, connect the first terminals CZ-1 of socket CZ, LED light LED-Z positive pole, negative pole, the 3rd current-limiting resistance R3, selecting the first output stake K-1 of switch K, sequential series connects；

3rd battery B3 positive pole, first diode D1 negative pole, positive pole, first current-limiting resistance R1, selects the first output stake K-1 of switch K, and sequential series connects, or, 3rd battery B3 positive pole, the first current-limiting resistance R1, the first diode D1 negative pole, positive pole, selecting the first output stake K-1 of switch K, sequential series connects；3rd battery B3 negative pole, second diode D2 positive pole, negative pole, second current-limiting resistance R2, selects the first output stake K-1 of switch K, and sequential series connects, or, 3rd battery B3 negative pole, the second current-limiting resistance R2, the second diode D2 positive pole, negative pole, selecting the first output stake K-1 of switch K, sequential series connects；

Described LED lamp tube assembly ZJ, its one end is connected with the first battery B1 positive electrical, and its other end electrically connects with the 3rd output stake K-3 selecting switch K.

For above overall description, make the description and interpretation being correlated with below.

One of description and interpretation.

Connection connector assembly involved in the present invention, it is proposed that buy ready-made product；This connection connector assembly, in the shop in some place, also referred to as bananajack or JK connector assembly.This connection connector assembly is the most often used in stereo set, and such as certain stereo set, music play by the loudspeaker that use equipment can be selected to carry, it is also possible to select to use external earphone or external loudspeaker etc. to play music.Insert external earphone or insert external loudspeaker, the most external earphone or insert external loudspeaker and play music, and the loudspeaker carried are noiseless；Otherwise, pull up external earphone or pull up external loudspeaker, the most external earphone or to insert external loudspeaker noiseless, and the loudspeaker carried are play.Plug receptacle in above-mentioned stereo set, often use is exactly connection connector assembly involved in the present invention.Certainly, if the legal implementer of the present invention produces on a large scale, it is also possible to consider designed, designed and produce and connect connector assembly, to reach not only to continue to use the principle of work and power of the connection connector assembly that invention relates to, but also the purposes such as cost can be reduced.

Further, the transistor radio that last century 60, the seventies, people used, its power supply can use the aneroid battery being contained in self-contained battery box, it is also possible to conversion uses external power supply, and what this translation interface used is exactly connection connector assembly involved in the present invention.Pull up the aneroid battery connected in plug CT, use machine；Plug connection plug CT, use external power supply.

Described above is only involved in the present invention some situation connecting connector assembly, but is not all, of situation；Namely saying, so-called " connection connector assembly ", its scope contained is as the criterion with claims.The selection switch of following description and introduction, its scope contained is to be as the criterion with claims too.

The two of description and interpretation.

Selection switch K involved in the present invention, it is proposed that buy ready-made product.Switch K is selected to include: an input stake and four output stakes, during use user can: select input stake K-0 with first output stake K-1 electrically connect, or select input stake K-0 and second output stake K-2 electrical connection, or select input stake K-0 and the 3rd output stake K-3 electrical connection, or select input stake K-0 and the 4th output stake K-4 electrical connection；Above four kinds of situations, in actual manually selecting, can only select one every time, as changed, need to the most again select.

In order to realize the purpose of invention, selecting switch K can be key switch (key switch is also referred to as press button), can be key switch, can be band switch, it is also possible to be other suitable switches.The present invention recommends key switch, and this switch is often pressed once, and input stake K-0 just changes different output stakes and is attached, and accumulative to press four times be a circulation, restart the most again.

It should be noted that: four output stakes, it is respectively designated as the first output stake K-1, the second output stake K-2, the 3rd output stake K-3 and the 4th output stake K-4, " one ", " two ", " three " and " four " in title is only convenient in order to be named, and being not intended to relevant action must be carried out by " one ", " two ", " three ", the order of " four ".The actual priority action selecting switch K can be carried out by " one ", " two ", " three ", the order of " four ", it is also possible to does not carries out by " one ", " two ", " three ", the order of " four ".

Explain as a example by key switch below.

The key switch selected has an input stake K-0 and four output stakes, and four export stakes respectively: the first output stake K-1, the second output stake K-2, the 3rd output stake K-3 and the 4th output stake K-4.Assume that original state is connected for input stake K-0 and the 4th output stake K-4, then the situation after pressing for the first time is: can be designed as inputting stake K-0 and first output stake K-1 electrical connection, it is also possible to be designed as inputting stake K-0 and second output stake K-2 electrical connection or being designed as inputting stake K-0 and the 3rd output stake K-3 electrical connection.For another example, if the result after pressing for the first time is input stake K-0 and first output stake K-1 electrical connection, the then situation after second time is pressed: can be designed as inputting stake K-0 and second output stake K-2 electrical connection, it is also possible to be designed as inputting stake K-0 and the 3rd output stake K-3 electrical connection；Other situations are by that analogy.Certainly, the numbering of key switch output stake once designs after determining and manufacturing completion, then sequence of movement determines that constant, unless redesigning separately, manufacturing.

Above-mentioned " numbering of key switch output stake once designs after determining and manufacturing completion, then sequence of movement determines that constant ", this conclusion is effective to key switch；For band switch, in addition to positive order, also opposite sequence is selective；For key switch, can arbitrarily press any one key, so the problem that there is not order.

Further, in key switch, adjacent, tactic output stake, can be by the first output stake K-1, the second output stake K-2, the 3rd output stake K-3 and the order name of the 4th output stake K-4, it is also possible to name the most in order.

The three of description and interpretation.

Connect the correlation circumstance after plug CT pulls away out from connection socket CZ, carry out as described below in conjunction with Fig. 1.

If connecting plug CT not to be inserted in connection socket CZ, then connect the second terminals CZ-2 in socket CZ and the 3rd terminals CZ-3 electrical connection.

Below in conjunction with Fig. 1, to the situation selecting switch K input stake K-0 output stake different from each to electrically connect and meaning, explain and explain.

1. select switch K to be in the state of input stake K-0 and first output stake K-1 electrical connection.Now, LED lamp tube assembly ZJ extinguishes, and LED light LED-Z makees luminescence instruction.

It needs to be noted: in Fig. 1, the second diode D2 being connected in series and the second current-limiting resistance, their two ends are shorted, shorting path is: the second terminals CZ-2,3rd terminals CZ-3, selects the input stake K-0 of switch K, selects the first output stake K-1 of switch K.

After above-mentioned short circuit, the drive circuit of LED light LED-Z can individually be depicted as Figure 14.Further, in fig. 14, the first diode D1 being connected in series and the first current-limiting resistance R1 is by the 3rd battery B3 reverse bias, and it is equivalent to open circuit and does not exists.So, the driving situation of LED light LED-Z is changed to: the first battery B1, the second battery B2 and the 3rd battery B3 are connected in series, LED light drive electric current by the first battery B1 positive pole → negative pole of the 3rd current-limiting resistance R3 → LED light LED-Z → arrival the 3rd battery B3.

The 3rd battery B3 is added, so LED light LED-Z now is the brightest owing to driving in power supply.

2. select switch K to be in the state of input stake K-0 and second output stake K-2 electrical connection.Now, LED lamp tube assembly ZJ is in the illuminating state of low-light level；Meanwhile, LED light LED-Z makees luminescence instruction.

Understand in conjunction with Fig. 8.Fig. 8 is voltage mark figure, compared to Figure 1 relatively, at some places increases the picture mark of voltage swing (magnitude of voltage of mark is preferable theoretical voltage).

Now, driving LED light LED-Z to make luminous power supply is the first battery B1 and the second battery B2 being connected in series, and drives the shinny electric current of LED light from the negative pole of the first battery B1 positive pole → the 3rd current-limiting resistance R3 → LED light LED-Z → the first current-limiting resistance R1 → the first diode D1 → arrive the second battery B2.Owing to only two batteries participate in driving, so LED light is not so good as the brightest of above three batteries drivings.

Also have, the illumination unidirectional current that first battery B1, the second battery B2 and the 3rd battery B3 provide, the path of its flowing is: the negative pole of the second terminals CZ-2 → the 3rd battery B3 of the 3rd terminals CZ-3 → connection socket CZ of the input stake K-0 → connection socket CZ of the second output stake K-2 of the positive pole of the first battery B1 → LED lamp tube assembly ZJ → dropping resistor R4 → selection switch K → selection switch K.LED lamp tube assembly ZJ in Fig. 1 is a branch road, and branch road includes mono-LED LED-1 of a branch road current-limiting resistance RZX-1.If LED lamp tube assembly ZJ changes over that have two light emitting diodes or more light emitting diode, related content refers to the introduction of many places below.

3. select switch K to be in the state of input stake K-0 and the 3rd output stake K-3 electrical connection.

Understand in conjunction with Fig. 7.Fig. 7 is voltage mark figure, compared to Figure 1 relatively, at some places increases the picture mark of voltage swing (magnitude of voltage of mark is preferable theoretical voltage).

Now, LED lamp tube assembly ZJ is in the illuminating state of higher brightness；Meanwhile, LED light LED-Z makees luminescence instruction (being driven by two batteries).The illumination unidirectional current that first battery B1, the second battery B2 and the 3rd battery B3 provide, the path of its flowing is: the negative pole of the second terminals CZ-2 → the 3rd battery B3 of the 3rd terminals CZ-3 → connection socket CZ of the input stake K-0 → connection socket CZ of the 3rd output stake K-3 of the positive pole of the first battery B1 → LED lamp tube assembly ZJ → selection switch K → selection switch K.Above-mentioned situation, owing to electric current is no longer pass through dropping resistor R4, so compared with the state of the second output stake K-2 electrical connection, the brightness of LED-1 is the highest.

4. select switch K to be in the state of input stake K-0 and the 4th output stake K-4 electrical connection.Now, the 4th output stake K-4 is empty stake, and LED lamp tube assembly ZJ extinguishes；Further, the LED light that the first battery B1 and the second battery B2 provides drives electric current, and it flows along the path of the 3rd current-limiting resistance R3 → LED light LED-Z → the first current-limiting resistance R1 → the first diode D1, and LED light LED-Z makees luminescence instruction.

The four of description and interpretation.

After connecting plug CT insertion connection socket CZ, correlation circumstance combines Fig. 2 and carries out as described below.

Connect plug CT and once insert connection socket CZ, just have a, b, c situation to occur in the lump: a. the second terminals CZ-2 and the 3rd terminals CZ-3 cuts off electrical connection；B. the positive contact point connecting plug CT and the first terminals CZ-1 electrical connection being connected socket CZ；C. the cathode contact point connecting plug CT and the second terminals CZ-2 electrical connection being connected socket CZ.

Further, positive wire CT-1, its one end and the positive contact point electrical connection being connected plug CT, the positive terminal that its other end exports with DC source electrically connects；Cathode conductor CT-2, its one end and the cathode contact point electrical connection being connected plug CT, the negative pole end that its other end exports with DC source electrically connects.

Below to the situation selecting switch K input stake K-0 output stake different from each to electrically connect and meaning, explain and explain.

1. select switch K to be in the state of input stake K-0 and first output stake K-1 electrical connection.

Understand in conjunction with Fig. 9.Fig. 9 is charging schematic diagram, and in figure, the dotted line of band arrow is the glide path of charging current.

Now, outside DC source is charged to the three joint rechargeable batteries being numbered B1, B2 and B3.The path of charging is: the first terminals CZ-1 → the first battery B1 of the positive contact point → connection socket CZ of the positive terminal → positive wire CT-1 → connection plug CT of DC source output, second battery B2, the negative pole end of the cathode contact point → cathode conductor CT-2 → DC source output of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the first output stake K-1 of the 3rd battery B3 → the second diode D2 → the second current-limiting resistance R2 → selection switch K → selection switch K.Illustrate 1: above-mentioned DC source omits in fig. 2 and do not draws；Illustrate 2: the input termination electric main of DC source, the outfan of DC source exports unidirectional current.

When the state selecting switch K to be in input stake K-0 and first output stake K-1 electrical connection, simultaneous situation also has 2 points: the 1st is that LED lamp tube assembly ZJ extinguishes；2nd point, outside DC source drives LED light LED-Z shinny, in other words, after the 3rd current-limiting resistance R3 and the series connection of LED light LED-Z, at the two ends being connected across DC source.Now, the 3rd current-limiting resistance R3 of series connection and LED light LED-Z are as a series connection part, and the voltage that its two ends apply is maximum, namely says, it is big that other situation any is all less than the voltage that this situation applied, and therefore, LED light is the brightest.

It addition, when being charged, it should be ensured that the first battery B1, the second battery B2 and the 3rd all rechargeable batteries of battery B3；Because aneroid battery is not suitable for charging.

2. select switch K to be in the state of input stake K-0 and second output stake K-2 electrical connection.Now, outside DC source provides DC lighting electric energy to LED lamp tube assembly ZJ, and LED lamp tube assembly ZJ is in the illuminating state of low-light level；Meanwhile, LED light LED-Z is driven by the first battery B1 and the second battery B2 and makees luminescence instruction.The walking path of DC lighting electricity is: the negative pole end of the cathode contact point → cathode conductor CT-2 → DC source output of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the second output stake K-2 of the first terminals CZ-1 → LED lamp tube assembly ZJ → dropping resistor R4 of the positive contact point → connection socket CZ of the positive terminal → positive wire CT-1 → connection plug CT of DC source output → selection switch K → selection switch K.

Understand in conjunction with Figure 10.

Now, outside DC source provides DC lighting electric energy to LED lamp tube assembly ZJ, and LED lamp tube assembly ZJ is in the illumination condition of high brightness；Meanwhile, LED light LED-Z is driven by battery B1 and B2 and makees luminescence instruction.The path of DC lighting electric current walking is: the negative pole end of the cathode contact point → cathode conductor CT-2 → DC source output of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the 3rd output stake K-3 of the first terminals CZ-1 → LED lamp tube assembly ZJ of the positive contact point → connection socket CZ of the positive terminal → positive wire CT-1 → connection plug CT of DC source output → selection switch K → selection switch K.

4. select switch K to be in the state of input stake K-0 and the 4th output stake K-4 electrical connection.Now, the 4th output stake K-4 is empty stake, and LED lamp tube assembly ZJ extinguishes.The unidirectional current that first battery B1 and the second battery B2 provides, it makees luminescence instruction along the 3rd current-limiting resistance R3 → LED light LED-Z → the first current-limiting resistance R1 → the first diode D1 path flowing, LED light LED-Z.

The five of description and interpretation.

Concentrate and again LED light LED-Z is described；According to display lamp from the brightest to dim, finally to extinguishing as sequentially, being described below respectively.

1.LED display lamp brightness is the highest.

When rechargeable battery is charged by the external device (ED)s such as DC source, LED light brightness is the highest；At this moment: the external device (ED)s such as a. DC source, its input termination 220V electric main, its outfan output 5V (or about 5V) unidirectional current；B. connect plug CT and insert connection socket CZ, by 5V DC supply input between the first terminals CZ-1 and the 3rd terminals CZ-3 of connection socket CZ；C. input stake K-0 and the first output stake K-1 electrical connection of switch K is selected.

Further, in the case of keeping with the above a, b, c, the most charging, or charging is basically completed, charging current is minimum, or taking rechargeable battery away, it is the highest that LED light is brightness.

2.LED display lamp brightness second is high.

It is not inserted in state and three batteries connecting in socket CZ and selecting switch K to be in input stake K-0 and the first output stake K-1 electrical connection connects in place when connecting plug CT；Meeting aforementioned condition, LED light brightness is the second height simultaneously, is caused by three batteries drive.

3.LED display lamp brightness three-hypers.

When three batteries connect in place and when selecting switch K to be in input stake K-0 and the second output stake K-2 electrical connection (or selecting switch K be in input stake K-0 and the 3rd output stake K-3 electrical connection or select switch K to be in input stake K-0 and the 4th to export stake K-4 and electrically connect), and LED light brightness is three-hypers.

When meeting above-mentioned situation, LED light brightness is three-hypers, and connects plug CT and insert or be not inserted into connecting in socket CZ, is brightness three-hypers.

4.LED display lamp is dim.

Three batteries connect in place, if the electric energy of battery will exhaust, then select switch K when some annexations, and LED light luminescence is dim.

As: when selecting switch K to be in input stake K-0 and the 4th output stake K-4 electrical connection, if there is the battery of sufficient electrical energy, then LED light LED-Z is shinny；If the electric energy of battery is not enough, it indicates that lamp is dim.

5.LED display lamp extinguishes.

After three batteries are removed, then selecting switch K when some annexations, LED light is extinguished.

As: when selecting switch K to be in input stake K-0 and the 4th output stake K-4 electrical connection, if there is battery, then LED light LED-Z is shinny；If taking battery away, it indicates that lamp extinguishes.

In addition to above-mentioned 5 kinds of situations, to be also further described.In further technical scheme, the nominal value of the first diode D1 forward conduction tube voltage drop is 0.7V rather than 0.3V, and the purpose of this measure is: make the shinny, dim of display lamp and extinguishing more easily discriminate between.

Comprehensive case above understands, and in the present invention, only relies on simple circuit and a common LED display lamp LED-Z, it is possible to indicate multiple situation, embody economical and practical comprehensive well.

The six of description and interpretation.

About the situation of the frame for movement of invention desk lamp, can understand in conjunction with Figure 15 to Figure 18；Further, in embodiment ten, also have more detailed description and interpretation.

Embodiment one

Illustrate in conjunction with Fig. 1.

Connect plug CT to be not inserted into connecting socket CZ；First battery B1, the second battery B2 and the 3rd battery B3 are entirely aneroid battery, and often joint aneroid battery is 1.5V DC voltage.

The situation that the input stake K-0 selecting switch K introduced below connects from different output stakes.

Assume that original state is: select switch K to be in input stake K-0 and the 4th output stake K-4 electrical connection；Now, LED lamp tube assembly ZJ extinguishes, and LED light LED-Z makees luminescence instruction.

Manually change selection switch K, make input stake K-0 and first output stake k-1 electrical connection；Now, LED lamp tube assembly ZJ extinguishes, and LED light LED-Z makees luminescence instruction.

Manually change selection switch K, make input stake K-0 and second output stake K-2 electrical connection；Now, LED lamp tube assembly ZJ low-light level is luminous, and LED light LED-Z makees luminescence instruction.The benefit of low-light level luminescence is to save electric energy, and the time making light fixture light can be longer.In the event of a loss of power, in order to provide the illumination of indoor low-light level, the pattern that low-light level is luminous can be selected.

Manually change selection switch K, make input stake K-0 and the 3rd output stake K-3 electrical connection；Now, LED lamp tube assembly ZJ is that higher brightness is luminous, and LED light LED-Z makees luminescence instruction.The benefit of higher brightness luminescence is can to provide suitably to write illumination light.In the event of a loss of power, for the illumination providing reading, write etc., the pattern that higher brightness is luminous can be selected, but this pattern power consumption is more.

Manually change selection switch K, make input stake k-0 and the 4th output stake K-4 electrical connection, so, then returned to original state.

Above-mentioned several situation, under normal circumstances, all luminous instruction of display lamp, illustrate therefrom, with the presence of battery.

If it is indicated that lamp is the most luminous, then explanation: or do not have the electric energy in battery, or battery the most completely depleted.Although if it is indicated that lamp is luminous but dim, illustrating that the electric energy of battery is not enough.

Can essentially be reduced to, input stake k-0 and the 4th output stake K-4 electrical connection is observed: the most luminous explanation of display lamp does not has battery, and the electric energy of display lamp dimness explanation battery is not enough.

The economical and practical comprehensive analysis of the present embodiment is as follows.

The LED lamp manufactured according to the present embodiment mode, can be carried to field usage；Owing to using aneroid battery, so in the case of there is no 220V electric main, still can be according to not missing.Further, in the place of accidental power failure, the LED lamp manufactured according to the present embodiment mode is also used as emergency power supply and uses, as long as aneroid battery, the state of manual selection switch K can be loaded, can light illumination.

Embodiment two

All changing the first battery B1 in embodiment one, the second battery B2 and the 3rd battery B3 into rechargeable battery, often joint rechargeable battery is 1.2V DC voltage；Other conditions are constant.

When manually changing the annexation selecting switch K, then situation about occurring is similar with the situation of introduction in embodiment one.

It addition, the voltage of rechargeable battery can keep stable in longer power-on time, thus the brightness of LED lamp tube assembly ZJ is the most more stable；The voltage of aneroid battery does not has the voltage stabilization of rechargeable battery, and the aneroid battery newly changed is higher at firm used time voltage, but declines soon, subsequently into the stage of stable development of long period.

Embodiment three

Illustrate in conjunction with Figure 11 and Figure 12.

In the present embodiment, it is equipped with general mobile phone charger one.Before the present patent application submits day to, domestic product or the charger for mobile phone of sale, according to the international relevant standard with China national and regulation, its outfan must use the USB socket of standard, the unidirectional current exported by USB socket, its voltage must be in the range of error of 5V ± 5%；Further, the input of charger for mobile phone is connected with 220V electric main.

Installing the first battery B1, the second battery B2 and the 3rd battery B3, this three battery is entirely No. 5 rechargeable batteries, and often joint rechargeable battery is 1.2V DC voltage.

Positive wire CT-1 and cathode conductor CT-2, one end of these two wires is connected with USB plug USB-T of standard, and the other end is connected with the connection plug CT being connected in connector assembly.

USB plug USB-T is inserted in USB socket USB-Z.After connecting plug CT insertion connection socket CZ, a, b, c situation is the most just had to occur in the lump: a. the second terminals CZ-2 and the 3rd terminals CZ-3 cuts off electrical connection；B. the positive contact point connecting plug CT and the first terminals CZ-1 electrical connection being connected socket CZ；C. the cathode contact point connecting plug CT and the second terminals CZ-2 electrical connection being connected socket CZ.

1. assume: select switch K to be in input stake K-0 and the 4th output stake K-4 electrical connection；Now, LED lamp tube assembly ZJ extinguishes, and LED light LED-Z makees luminescence instruction.

2. manually change selection switch K, make input stake K-0 and first output stake K-1 electrical connection.The electric energy that thered is provided by 220V electric main, charged to the three joint rechargeable batteries of B1, B2 and B3 by general mobile phone charger.Specifically: 220V electric main sends into the input of charger for mobile phone, charger for mobile phone output 5V ± 5% unidirectional current is charged, the path of charging current is: the first terminals CZ-1 → the first battery B1 of the positive contact point of USB socket positive pole → USB plug positive pole → positive wire CT-1 → connection plug CT → connection socket CZ, second battery B2, cathode contact point → cathode conductor CT-2 → USB plug negative pole → USB socket the negative pole of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the first output stake K-1 of the 3rd battery B3 → the second diode D2 → the second current-limiting resistance R2 → selection switch K → selection switch K.

When the state selecting switch K to be in input stake K-0 and first output stake K-1 electrical connection, simultaneous situation also has: LED lamp tube assembly ZJ extinguishes, and LED light LED-Z makees the luminous instruction of maximum brightness.

3. manually change selection switch K, make input stake K-0 and second output stake K-2 electrical connection.Now, LED light LED-Z makees luminescence instruction.220V electric main provides illumination electric energy by charger for mobile phone, so that LED lamp tube assembly ZJ is in low-light level luminance.

Ordering about the unidirectional current that LED lamp tube assembly ZJ low-light level is luminous, its route flowed through is: the cathode contact point → cathode conductor CT-2 → USB plug negative pole → USB socket negative pole of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the second output stake K-2 of the first terminals CZ-1 → LED lamp tube assembly ZJ → dropping resistor R4 of the positive contact point → connection socket CZ of the USB socket positive pole → USB plug positive pole → positive wire CT-1 → connection plug CT of charger for mobile phone output → selection switch K → selection switch K.

4. manually change selection switch K, make input stake K-0 and the 3rd output stake electricity K-3 connect.Now, 220V electric main provides electric energy by charger for mobile phone, so that LED lamp tube assembly ZJ is in the illumination condition of maximum brightness.

Ordering about the unidirectional current that LED lamp tube assembly ZJ is the highest illumination light-emitting, its route flowed through is: the cathode contact point → cathode conductor CT-2 → USB plug negative pole → USB socket negative pole of the 3rd terminals CZ-3 → connection plug CT of the input stake K-0 → connection socket CZ of the 3rd output stake K-3 of the first terminals CZ-1 → LED lamp tube assembly ZJ of the positive contact point → connection socket CZ of the USB socket positive pole → USB plug positive pole → positive wire CT-1 → connection plug CT of charger for mobile phone output → selection switch K → selection switch K.

Owing to the use of mobile phone and charger for mobile phone thereof is the most universal, there is these electrical equipment in nearly all family, therefore, use the LED lamp that the circuit of desk lamp of the present invention manufactures, such as LED desk lamp, avoid the need for configuring charger or DC source the most separately, it is possible to manufacturing cost and selling price are greatly lowered.

Even so, even if there being minority family there is no charger for mobile phone, then charger for mobile phone either manufacturer with light fixture systems selling or consumer buys voluntarily, owing to charger for mobile phone is globalization large-scale production, so having many benefits such as price is low, quality is high, maintenance is convenient.

The LED lamp manufactured by the introduced method of the present embodiment, the most applicable to the area often having a power failure；The when of temporary interruption, selection switch K is adjusted to relevant position, by rechargeable battery powered illumination；The when of power failure, selection switch K is adjusted to correct position, in order to by 220V electric main powered lighting, or electric energy is provided by 220V electric main, rechargeable battery is charged.

Embodiment four

In above-described embodiment three, charger for mobile phone role is the effect of a DC source, the USB socket exported by charger for mobile phone, the unidirectional current of output 5V voltage.

In the present embodiment, the conveying galvanic USB socket of 5V is the USB socket that PC is intrinsic；Namely saying, DC source is served as by the direct-flow voltage stabilizer in PC.

It is known that PC is divided from profile, having two big types, a class is desktop computer, and another kind of is notebook computer (also known as laptop computer, portable computer), is introduced separately below.

Desktop computer, has display screen and main frame；Under normal circumstances, display screen is placed on table top, the arrangement that main frame has on the ground, on the shelf being placed in table top lower left side or lower right side having, etc..Main frame is provided with multiple USB socket, and these USB socket can export the unidirectional current of 5V voltage；The power line of host computer accesses 220V electric main, and the direct-flow voltage stabilizer input being then delivered in main frame, this device has the electric energy of multichannel to export, wherein has the unidirectional current of 5V voltage to export and be sent to each USB socket.

Display screen and the main frame of notebook computer unites two into one, is consequently formed the main body of notebook computer, and its required electric energy is provided by the power source special adapter of notebook computer；The power source special adapter of notebook computer, the electric main of its input termination 220V, its outfan is sent to the main body of notebook computer by electric wire；In the main body of notebook computer, being provided with multiple USB socket, power source special adapter provides the unidirectional current of 5V voltage to these USB socket.

By above description, either desktop computer or notebook computer, they intrinsic USB socket can export the 5V unidirectional current of certain magnitude of current.

In embodiment three, USB plug insert be charger for mobile phone outfan USB socket in；And in the present embodiment four, in what USB plug was inserted is the intrinsic USB socket of computer；Aforementioned computer can be desktop computer, can also be notebook computer.

The present embodiment is compared with embodiment three, except for the difference that: the former is the USB socket of computer, the latter is the USB socket of charger for mobile phone, remaining circuit begins from USB plug, the circuit of follow-up invention desk lamp is identical, and not only circuit structure is identical, and technique effect is the most identical with using method, due to length relation, it is no longer repeated.

Owing to having used direct-flow voltage stabilizer and the UBS socket thereof of desktop computer, or owing to having used power source special adapter and the UBS socket thereof of notebook computer, avoid the need for configuring charger or DC source the most separately, it is possible to manufacturing cost and selling price are greatly lowered.

Embodiment five

Illustrate in conjunction with Figure 13.

This Figure 13 is compared with the Figure 11 in embodiment three, and one of different place is: be mounted with the first battery B1, the second battery B2 and the 3rd battery B3 in Figure 11, and this three battery is entirely No. 5 rechargeable batteries, and often joint rechargeable battery is 1.2V DC voltage；And in this Figure 13, there is not the first battery B1, the second battery B2 and the 3rd battery B3, and the electrical connection of relevant position is disconnected, as shown in the small circle in Figure 13.

In fig. 13, positive wire CT-1 and cathode conductor CT-2, one end of these two wires is connected with USB plug USB-T of standard, and the other end is connected with the connection plug CT being connected in connector assembly.USB plug is inserted in USB socket, and has following a, b, c situation: a. the second terminals CZ-2 and the 3rd terminals CZ-3 cuts off electrical connection；B. the positive contact point connecting plug CT and the first terminals CZ-1 electrical connection being connected socket CZ；C. the cathode contact point connecting plug CT and the second terminals CZ-2 electrical connection being connected socket CZ.Other electrical connection situation is as shown in figure 13.

Now, USB plug can be inserted the USB socket of general mobile phone charger output interface, or USB plug can be inserted the USB socket that desktop computer is intrinsic, or USB plug can be inserted the USB socket that notebook computer is intrinsic；Introduced individually below.

The first situation .USB plug USB-T inserts general mobile phone charger USB socket USB-Z, then the input termination 220V electric main of general mobile phone charger.Switch K is selected to be adjusted to input stake K-0 and the 3rd output stake K-3 electrical connection, LED lamp tube assembly ZJ high-brightness luminous；Switch K is selected to be adjusted to input stake K-0 and second output stake K-2 electrical connection, the low bright luminescence of LED lamp tube assembly ZJ；Selecting switch K to be adjusted to input stake K-0 and first output stake K-1 electrical connection, LED lamp tube assembly ZJ extinguishes；Selecting switch K to be adjusted to input stake K-0 and the 4th output stake K-4 electrical connection, LED lamp tube assembly ZJ extinguishes.

The second situation .USB plug USB-T inserts intrinsic USB socket USB-Z of desktop computer, by the unidirectional current of USB socket conveying 5V after desktop computer start.Switch K is selected to be adjusted to input stake K-0 and the 3rd output stake K-3 electrical connection, LED lamp tube assembly ZJ high-brightness luminous；Switch K is selected to be adjusted to input stake K-0 and second output stake K-2 electrical connection, the low bright luminescence of LED lamp tube assembly ZJ；Selecting switch K to be adjusted to input stake K-0 and first output stake K-1 electrical connection, LED lamp tube assembly ZJ extinguishes；Selecting switch K to be adjusted to input stake K-0 and the 4th output stake K-4 electrical connection, LED lamp tube assembly ZJ extinguishes.

The third situation .USB plug USB-T inserts intrinsic USB socket USB-Z of notebook computer, by the unidirectional current of USB socket conveying 5V after notebook computer start.The situation after selecting switch K regulation in the situation after switch K regulation and above the second situation is selected to duplicate, so being not repeated.

Owing to having used general mobile phone charger and USB socket thereof, or owing to having used direct-flow voltage stabilizer and the UBS socket thereof of desktop computer, or owing to having used power source special adapter and the UBS socket thereof of notebook computer, avoid the need for configuring charger or DC source the most separately, and it is not equipped with any aneroid battery or rechargeable battery, and by 220V electric main supply of electrical energy, so pole considerably reduces manufacturing cost and selling price.

The method of the above-mentioned introduction of the present embodiment, is suitable for the area employing not having a power failure very much.

Embodiment six

In the present embodiment, invention circuit is applied on desk lamp.Manufacturer is in finished product packing box, according to the difference of electric power thus supplied, and point two types configuration.

The first kind configures.

The first kind is configured to basic configuration；The desk lamp situation of basic configuration is as follows:

1. desk lamp main body: lampshade, lamp stand and lamp socket from top to bottom.LED light emitting diode in 2.LED fluorescent tube assembly ZJ and resistance welding on a printed-wiring board, and are attached with wire pair miscellaneous part；The printed substrate being welded with LED light emitting diode is arranged in lampshade.3. there is no the first battery B1, the second battery B2 and the 3rd battery B3, but have battery case and connect sheet (connecting battery).4. positive wire CT-1 and cathode conductor CT-2, one end of these two wires is connected with USB plug USB-T of standard, and the other end is connected with the connection plug CT being connected in connector assembly.5. the components and parts of other circuit are all shown in Figure 13, and properly install, are welded in desk lamp main body.

The word that situation described above can be written as: " described circuit includes battery case；Described battery case includes: battery case main body and the conductive connecting piece connected for battery；Conductive connecting piece, it is positioned at battery case main body, and it realizes the electrical connection with battery case body exterior by electric wire；The first described battery B1, the second battery B2, the 3rd battery B3, this three batteries does not exists.”

Knowable to situation described above: the desk lamp of basic configuration does not has battery (both do not had aneroid battery, do not had a rechargeable battery yet), does not has DC source or similar device, such as fairing, power supply adaptor etc.；Aforesaid DC source etc., all can be converted into galvanic by 220V electric main.

The desk lamp of first kind configuration can be for sale as complete desk lamp, and its area sold is particularly suitable in the consumer local, that particularly have charger for mobile phone by oneself not having a power failure.Buyer buy back home in after, plug CT will be connected and insert and connect in socket CZ, and USB plug USB-T be inserted in USB socket USB-Z of charger for mobile phone, the input of charger for mobile phone is connected with 220V electric main, the most just can use, put bright desk lamp.

The economical and practical comprehensive analysis of first kind configuration LED desk lamp is as follows:

Owing to there is no battery, particularly there is no DC source (or similar device), so manufacturing cost and selling price are significantly lower than the common LED desk lamp of prior art.Common LED desk lamp refers to: directly uses the LED desk lamp of 220V electric main, is internally provided with continuous-current plant (or similar device), so that alternating current becomes unidirectional current, to order about LED lamp tube shinny；Further, common LED desk lamp cannot use when having a power failure.

Additionally, the place not having a power failure is not equal to absolutely not have a power failure；Also have, the shelter not having a power failure sometimes pulling wire less than local need to provide illumination, in these cases, as long as user loads three joint aneroid battery and just can solve problem, so LED desk lamp or serve as emergency light use, or serve as large-scale pocket lamp use.

Equations of The Second Kind configures.

Equations of The Second Kind configuration is on the basis of the first kind configures, then is equipped with increase by three joint rechargeable batteries.The desk lamp of Equations of The Second Kind configuration, its area sold is particularly suitable in the place often having a power failure.

The economical and practical comprehensive analysis of Equations of The Second Kind configuration LED desk lamp is as follows:

Owing to the LED desk lamp of Equations of The Second Kind configuration does not has DC source (or similar device), it is compared with the prior art desk lamp with function of emergency illumination, and its manufacturing cost and selling price substantially reduce.

Application invention circuit, carry out the LED desk lamp of Equations of The Second Kind configuration, having electricity when, rely on 220V electric main to light illumination, or rechargeable battery is charged；Having a power failure when, rely on rechargeable battery luminous lighting；If had a power failure for a long time, the electric energy of rechargeable battery also uses up, then can use aneroid battery to replace rechargeable battery, provide further emergency lighting with this.

Embodiment seven

That the present embodiment is to be introduced is the LED lamp tube assembly ZJ constituted by branch road mode.So-called branch road, each of which branch road is respectively provided with the character of following a and b:

A. each branch road includes: a branch road current-limiting resistance RZX-1 and a LED LED-1；B. the electrically connecting as of each branch road: the first battery B1 positive pole, branch road current-limiting resistance RZX-1, the positive pole of LED LED-1, negative pole, select the 3rd output stake K-3 of switch K, sequential series connects；Or, the first battery B1 positive pole, the positive pole of LED LED-1, negative pole, branch road current-limiting resistance RZX-1, select the 3rd output stake K-3 of switch K, sequential series connects.

Constituting the branch road of LED lamp tube assembly ZJ, its quantity can be one, it is also possible to is two, or more a plurality of branch road.Situation shown in Fig. 1 is: the LED lamp tube assembly ZJ being made up of a branch road；Situation shown in Fig. 3 is: the LED lamp tube assembly ZJ being made up of two branch roads；Situation shown in Fig. 4 is: the LED lamp tube assembly ZJ, N herein being made up of N bar branch road is more than or equal to 3.

The most as shown in Figure 3 and Figure 4, between each branch road it is annexation in parallel.

Embodiment eight

The present embodiment LED lamp tube to be introduced assembly ZJ, it includes a total current-limiting resistance RZ and plural LED LED-1.

LED lamp tube assembly ZJ in Fig. 5, it includes a total current-limiting resistance RZ and two LED LEDs-1；LED lamp tube assembly ZJ in Fig. 6, it includes a total current-limiting resistance RZ and N number of LED LED-1, and aforesaid N is more than or equal to 3.

As Fig. 5, Fig. 6 express as, all of LED LED-1, they in the same direction parallel connection become LED row, in other words, all of LED LED-1, their positive pole is connected, and their negative pole is connected.

First battery B1 positive pole, total current-limiting resistance RZ, LED row positive pole, negative pole, select the 3rd output stake K-3 of switch K, sequential series connects.

Embodiment nine

In case of shown in Fig. 6, the configuration of relevant components and parts in circuit is described.

The quantity of LED light emitting diode is 50, i.e. N=50.The model of LED light emitting diode, a diameter of 5mm, direct insertion, white light, straw hat type.The resistance of total current-limiting resistance RZ is 0.3 ohm～0.75 ohm, needs adjustment determines, because the LED light emitting diode parameter of each batch and each producer meet also exist in the range of index of dispatching from the factory inconsistent, even same producer, same batch there is also inconsistent, so the resistance of total current-limiting resistance RZ needs to adjust.

First battery B1, the second battery B2 and the 3rd battery B3, be nominal value be the rechargeable battery of 1.2V, No. 5.

First diode, its model is 1N4007, and the nominal value of its forward conduction tube voltage drop is 0.7V；Second diode D2, its model is 1N5819, and the nominal value of its forward conduction tube voltage drop is 0.3V.

The model selecting switch K is KAN16 or KAN17.

The resistance of the first current-limiting resistance R1 is 2.7K ohm；The resistance of the second current-limiting resistance R2 is 0.82 ohm；The resistance of the 3rd current-limiting resistance R3 is 1K ohm；The resistance of the 4th current-limiting resistance R4 is 8.2 ohm.

The model of LED light LED-Z, a diameter of 3mm, direct insertion, HONGGUANG, bullet-shaped.

Embodiment ten

Desk lamp in the present embodiment, as shown in Figure 15, Figure 16, Figure 17 and Figure 18.Figure 15 is the front view of invention desk lamp；Figure 16 is the right view of Figure 15；Figure 17 is the left view of Figure 15；Figure 18 is the separation graph of Figure 15.

As shown in above-mentioned four figures；LED desk lamp includes: LED lamp tube assembly ZJ, lampshade 1, lamp stand, lamp socket 4, circuit；The top of lamp stand is rotationally connected with lampshade 1, and the bottom of lamp stand is rotationally connected with lamp socket 4；The benefit being rotationally connected is convenient regulation orientation angle etc..Wherein, in fig .15, label 5 is light-passing board, and label LED-1 is LED light emitting diode, and light emitting diode is multiple, and after powered up, they luminescences are illuminated.

Lamp stand includes: the body of rod, LED light LED-Z, battery case, connects connector assembly, selects switch K, the first battery B1, the second battery B2, the 3rd battery B3.The front end of LED light LED-Z is emerging in the front surface of the body of rod；User so can be allowed to observe situation easily, by the brightness flop of LED light and light or extinguish change by display lamp, grasp the various correlation circumstances of desk lamp.The surface selecting switch K is exposed to the front surface of the body of rod, in order to the selection pass that user is pressed needing when and selected switch K, carries out being correlated with changes.

The body of rod includes: pre-structure body 2, rear structure 3, battery case cover plate, and printed substrate 8 is conductively connected part group 7.

Below, emphatically the frame for movement of the body of rod is introduced and illustrates.

In Figure 15 and Figure 18, all draw and have pre-structure body 2 and rear structure 3；It practice, fixing these two structures connected, constitute the main body of the body of rod, in other words, from frame for movement for, these two structures have upper be rotationally connected with lampshade 1, the lower function being rotationally connected with lamp socket 4.

For content well arranged, that the meaning clearly expresses narration, below related content is introduced respectively.

1. about pre-structure body 2.

For pre-structure body 2, can be found in Figure 23 to Figure 25 and understand.Figure 23 is the front view of pre-structure body；Figure 24 is the left view of Figure 23；Figure 25 is the right view of Figure 23.

As shown in Figure 23 to Figure 25, offer in the position at the front surface place of pre-structure body 2: for installing the instruction installing hole of LED light LED-Z, for installing the switch installing hole selecting switch K；The mounting post 10 that the back of pre-structure body 2 is conformed with, this mounting post 10 is used for installing printed substrate 8.

2. about rear structure 3.

For rear structure 3, can be found in Figure 19 to Figure 22 and understand.Figure 19 is the front view of rear structure；Figure 20 is the left view of Figure 19；Figure 21 is the right view of Figure 19；Figure 22 is the sectional view of Figure 19.

As shown in Figure 19 to Figure 22, rear structure 3 is provided with battery case agent structure；This battery case agent structure is rectangular cavity structure, and rectangular cavity caves in forward and opens wide backwards；Rectangular cavity structure includes: upper wall 6-1, lower wall 6-2, left wall 6-3, right wall, diapire 6-4.

What battery case was provided for fetching battery picks and places mouth, picks and places mouth and is positioned at the back side of the body of rod, as shown in Figure 17 and Figure 20 etc..

First battery B1, the second battery B2 and the 3rd battery B3 are No. 5 aneroid battery, often save 1.5V；This three joints aneroid battery is positioned at battery case (aneroid battery omits in 17 in the drawings and do not draws).It is provided with in battery case and is conductively connected part group 7；Three joint aneroid battery in battery case, need to set up electrical connection from each other, additionally need the electrical connection set up inside and outside battery case；For this, it is also adopted by the way of prior art, with several electric connecting sheets, positive pole, the negative pole at aneroid battery two ends are set up electrical communication, for this, also take the way of routine: the raised points on aneroid battery positive pole electric connecting sheet is carried out to connecting, dry battery cathode is also wanted another little spring carry out to connecting, in addition, also carry out the connection being correlated with electric wire, the electrical connection needed for final realization.

Battery case cover plate is installed at the place of opening wide backwards of rectangular cavity；It is provided with hole clipping bayonet arrangement between rear structure 3 and cover plate, realizes snap-in installation by hole clipping bayonet arrangement.Illustrate: battery case cover plate, hole clipping bayonet arrangement are all omitted and do not drawn by relevant figure.

3. about connecting socket CZ and installing retaining structure.

Connection socket CZ in the present embodiment sees Figure 26 to Figure 29.Figure 26 is the front view connecting socket；Figure 27 is the left view of Figure 26；Figure 28 is the right view of Figure 26；Figure 29 is the top view of Figure 26.The each terminals connecting socket CZ are all omitted and do not draw by aforementioned four figures.

Knowable to four figures of Figure 26 to Figure 29: the structure connecting socket CZ includes jack CZ-K and installs draw-in groove CZ-C.Utilize and draw-in groove CZ-C is installed, can be fixed on connecting socket CZ between pre-structure body 2 and rear structure 3, and make the jack CZ-K of connection socket CZ down.

Its concrete way is: in pre-structure body 2, or in rear structure 3, or simultaneously in these two structures, offer breach so that the wall body of indentation, there embeds the installation draw-in groove CZ-C connecting socket CZ.In Figure 30, offering breach in rear structure 3, the installation draw-in groove CZ-C connecting socket CZ embeds breach, and then pre-structure body 2 and rear structure 3 close up, then connect socket CZ and be just stuck, secure, as shown in figure 31.And for example in Figure 34, offering breach in pre-structure body 2, the installation draw-in groove CZ-C connecting socket CZ embeds breach, and then pre-structure body 2 and rear structure 3 close up, then connect socket CZ and be just stuck, secure, as shown in figure 35.Further, Tu32Zhong, pre-structure body 2 and rear structure 3 are all offered half breach, are connected the installation draw-in groove CZ-C embedding breach of socket CZ, after pre-structure body 2 and rear structure 3 close up, connect socket CZ and be just stuck, secure, as shown in figure 33.

In described above, no matter whether pre-structure body 2 is offered breach, and whether rear structure 3 offers breach, be regarded as being provided with retaining structure, and together constitute complete installation retaining structure with another structure；Because the not structure of gap, the most jointly serve the effect blocked, fix.

Desk lamp in the present embodiment, after completing assembling and debugging, can use aneroid battery, presses selection switch K, lights LED LED lighting.Now desk lamp is owing to using aneroid battery, it is possible to serves as large-scale pocket lamp and uses, or serves as emergency light use.

Claims

1. a LED desk lamp, including: LED lamp tube assembly (ZJ), lampshade (1), lamp stand, lamp socket (4), circuit；Described lamp stand, its top is connected with lampshade (1), and its underpart is connected with lamp socket (4)；

It is characterized in that: described lamp stand includes: the body of rod, LED light (LED-Z), battery case, connect connector assembly, select switch (K), the first battery (B1), the second battery (B2), the 3rd battery (B3)；

Described the first battery (B1), the second battery (B2), the 3rd battery (B3), this three is respectively positioned in battery case；

Described LED light (LED-Z), its fluorescent tube front end is emerging in the front surface of the body of rod；

Described selection switch (K), its surface is exposed to the front surface of the body of rod；Switch (K) is selected to include: input stake (K-0), the first output stake (K-1), the second output stake (K-2), the 3rd output stake (K-3), the 4th output stake (K-4)；

Described connection connector assembly includes: connect plug (CT), connects socket (CZ), positive wire (CT-1), cathode conductor (CT-2)；Described connection plug (CT) has positive contact point and cathode contact point；

Positive wire (CT-1), its one end and the positive contact point electrical connection being connected plug (CT), the positive terminal that its other end exports with DC source electrically connects；Cathode conductor (CT-2), its one end and the cathode contact point electrical connection being connected plug (CT), the negative pole end that its other end exports with DC source electrically connects；

Connect socket (CZ) and be positioned at the downside of battery case；Connect socket (CZ) there are three terminals, three terminals respectively: the first terminals (CZ-1), the second terminals (CZ-2), the 3rd terminals (CZ-3)；

When connecting plug (CT) and extracting connection socket (CZ), connect the second terminals (CZ-2) in socket (CZ) and the electrical connection of the 3rd terminals (CZ-3)；

After connection socket (CZ) is once inserted in connection plug (CT), a, b, c situation is just had to occur in the lump: a. the second terminals (CZ-2) and the 3rd terminals (CZ-3) cut off electrical connection；B. the positive contact point connecting plug (CT) and the first terminals (CZ-1) electrical connection being connected socket (CZ)；C. the cathode contact point connecting plug (CT) and the second terminals (CZ-2) electrical connection being connected socket (CZ)；

Connect first terminals (CZ-1) of socket (CZ), first battery (B1) positive pole, negative pole, second battery (B2) positive pole, negative pole, 3rd battery (B3) positive pole, negative pole, connecting second terminals (CZ-2) of socket (CZ), they sequential series connect；

Connect first terminals (CZ-1) of socket (CZ), 3rd current-limiting resistance (R3), LED light (LED-Z) positive pole, negative pole, select the first output stake (K-1) of switch (K), sequential series connects, or, connect first terminals (CZ-1) of socket (CZ), LED light (LED-Z) positive pole, negative pole, 3rd current-limiting resistance (R3), selecting the first output stake (K-1) of switch (K), sequential series connects；

3rd battery (B3) positive pole, first diode (D1) negative pole, positive pole, first current-limiting resistance (R1), selects the first output stake (K-1) of switch (K), and sequential series connects, or, 3rd battery (B3) positive pole, the first current-limiting resistance (R1), the first diode (D1) negative pole, positive pole, selecting the first output stake (K-1) of switch (K), sequential series connects；3rd battery (B3) negative pole, second diode (D2) positive pole, negative pole, second current-limiting resistance (R2), selects the first output stake (K-1) of switch (K), and sequential series connects, or, 3rd battery (B3) negative pole, the second current-limiting resistance (R2), the second diode (D2) positive pole, negative pole, selecting the first output stake (K-1) of switch (K), sequential series connects；

Described LED lamp tube assembly (ZJ), its one end is connected with the first battery (B1) positive electrical, and its other end electrically connects with the 3rd output stake (K-3) selecting switch (K).

A kind of LED desk lamp the most according to claim 1, is characterized in that: described the first battery (B1), the second battery (B2), the 3rd battery (B3), and the facilities of this three battery is any one in following three:

A. this three battery is 1.2V rechargeable battery；

B. this three battery is the aneroid battery of 1.5V；

A kind of LED desk lamp the most according to claim 1, is characterized in that: described DC source, includes: rectification circuit, filter circuit, direct current regulation circuit inside it；The input of DC source is connected with electric main, and DC source is by positive terminal and negative pole end output unidirectional current, and galvanic magnitude of voltage is 5V ± 5%.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described desk lamp includes: USB plug (USB-T), matching used with USB plug (USB-T) have USB socket (USB-Z)；Described positive wire (CT-1), its head end electrically connects with the positive terminal of USB plug (USB-T), its tail end and the positive contact point electrical connection being connected plug (CT)；Described cathode conductor (CT-2), its head end electrically connects with the negative pole end of USB plug (USB-T), its tail end and the cathode contact point electrical connection being connected plug (CT)；

Described DC source and described USB socket (USB-Z), for any one in following four:

A. described DC source is direct-current-output type power supply adaptor, and the outfan of direct-current-output type power supply adaptor exports unidirectional current by USB socket (USB-Z)；

B. described DC source is charger for mobile phone (SC), and the outfan of charger for mobile phone (SC) exports unidirectional current by USB socket (USB-Z)；

C. described DC source is the D.C. regulated power supply in personal desktop computer；D.C. regulated power supply, its input is connected with alternating current power supply, and its outfan exports unidirectional current by the USB socket (USB-Z) that personal desktop computer is intrinsic；

D. the described DC power supply apparatus that DC source is notebook computer；DC power supply apparatus, its input is connected with alternating current power supply, and its outfan is connected with notebook computer；Notebook computer is by intrinsic USB socket (USB-Z) output unidirectional current；

In above-mentioned a, b, c, d, the USB socket (USB-Z) in its any technical scheme, all by the connection with USB plug (USB-T), it is achieved output unidirectional current.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described LED lamp tube assembly (ZJ) includes more than one branch road；Two or more branch road, each branch road is for being connected in parallel；

Each branch road is respectively provided with following a and b character:

A. each branch road includes: a branch road current-limiting resistance (RZX-1) and a LED light emitting diode (LED-1)；

B. the electrically connecting as of each branch road: the first battery (B1) positive pole, branch road current-limiting resistance (RZX-1), the positive pole of LED light emitting diode (LED-1), negative pole, selecting the 3rd output stake (K-3) of switch (K), sequential series connects；Or, first battery (B1) positive pole, the positive pole of LED light emitting diode (LED-1), negative pole, branch road current-limiting resistance (RZX-1), selecting the 3rd output stake (K-3) of switch (K), sequential series connects.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described LED lamp tube assembly (ZJ) including: a total current-limiting resistance (RZ), plural LED light emitting diode (LED-1)；

All of LED light emitting diode (LED-1), they in the same direction parallel connection become LED row；In other words, all of LED light emitting diode (LED-1), their positive pole is connected, and their negative pole is connected；

First battery (B1) positive pole, total current-limiting resistance (RZ), LED row positive pole, negative pole, select the 3rd output stake (K-3) of switch (K), sequential series connects；Or, the first battery (B1) positive pole, LED row positive pole, negative pole, total current-limiting resistance (RZ), select the 3rd output stake (K-3) of switch (K), sequential series connects.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described battery case includes: battery case main body (6), is conductively connected part group (7), lid；By being conductively connected part group (7), realize the first battery (B1) positive pole, negative pole, second battery (B2) positive pole, negative pole, the 3rd battery (B3) positive pole, negative pole sequential series electrically connect, and realize again the inside and outside electrical connection of box；Lid is positioned at the opening part of battery case main body (6)；Battery case main body (6) is integrally manufactured with the body of rod；Or, battery case main body (6) manufactures with body of rod split, again by battery case main body (6) and body of rod split assembly connection after split manufacture.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described lamp stand, its top is rotationally connected with lampshade (1), and its underpart is rotationally connected with lamp socket (4)；

The body of rod includes: pre-structure body (2), rear structure (3), battery case cover plate, and printed substrate (8) is conductively connected part group (7)；Pre-structure body (2) and the fixing connection of rear structure (3)；

Offer in the position at the front surface place of pre-structure body (2): be used for installing the instruction installing hole of LED light (LED-Z), be used for the switch installing hole selecting switch (K) is installed；The mounting post (10) that the back of pre-structure body (2) is conformed with, this mounting post (10) is used for installing printed substrate (8)；The lower position at pre-structure body (2) back is provided with the first retaining structure, and the first retaining structure under, instruction installing hole, switch installing hole and mounting post (10) three are all upper；

Rear structure is provided with battery case agent structure in (3)；Described battery case agent structure is rectangular cavity structure, and rectangular cavity caves in forward and opens wide backwards；Rectangular cavity structure includes: upper wall (6-1), lower wall (6-2), left wall (6-3), right wall, diapire (6-4)；

Battery case cover plate is installed at the place of opening wide backwards of rectangular cavity；Described installation refers to by installing screw realization installation, or, described installation refers to be provided with hole clipping bayonet arrangement between rear structure (3) and cover plate, realizes snap-in installation by hole clipping bayonet arrangement；

Described connection socket (CZ), its structure includes: jack (CZ-K) and installation draw-in groove (CZ-C)；Described rear structure (3), position, its underpart is provided with the second retaining structure；The first described retaining structure and the second retaining structure are correspondingly arranged, and these two retaining structures constitute complete installation retaining structure；By installing draw-in groove (CZ-C) and complete installation retaining structure, connect socket (CZ) and the body of rod realizes connecting；Connection socket (CZ) after connection, its jack (CZ-K) is down.

A kind of LED desk lamp the most according to claim 1, is characterized in that: described the first diode (D1), the nominal value of its forward conduction tube voltage drop is 0.7V；Described the second diode (D2), the nominal value of its forward conduction tube voltage drop is 0.3V.