CN206943844U - Range hood and the AC LED lamp for range hood - Google Patents

Range hood and the AC LED lamp for range hood Download PDF

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Publication number
CN206943844U
CN206943844U CN201720576775.2U CN201720576775U CN206943844U CN 206943844 U CN206943844 U CN 206943844U CN 201720576775 U CN201720576775 U CN 201720576775U CN 206943844 U CN206943844 U CN 206943844U
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CN
China
Prior art keywords
light source
voltage
range hood
source board
led lamp
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Expired - Fee Related
Application number
CN201720576775.2U
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Chinese (zh)
Inventor
王勋章
邹义华
朱世平
杨捷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Publication date
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Priority to CN201720576775.2U priority Critical patent/CN206943844U/en
Application granted granted Critical
Publication of CN206943844U publication Critical patent/CN206943844U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of AC LED lamp the utility model discloses range hood and for range hood, wherein, AC LED lamp includes：Shell；Lamp holder, lamp holder is connecting electric main；Light source board, light source board are provided with multiple LED；Power panel, power panel are connected with light source board, and are arranged in shell, power panel is connected with lamp holder, is provided with voltage transformation module on power panel, and voltage transformation module is electric main to be converted to the direct current of predeterminated voltage, and light source board is supplied to, multiple LED light after light source board energization.The AC LED lamp converts the voltage into module and is integrally disposed on power panel, can be directly connected to electric main use, can both reduce cost, can save space again, and use range is wide, easy for installation.

Description

Range hood and the AC LED lamp for range hood
Technical field
The utility model is related to household electrical appliance technical field, more particularly to a kind of AC LED lamp for range hood and Range hood.
Background technology
At present, the LED used on range hood is direct current lamp, rated voltage largely for DC (Direct Current, Direct current) 12V.This LED is needed individually to mix a voltage transformation module when in use, and electric main is converted into direct current Electricity uses.
However, the cost of general voltage changing module is higher, and space-consuming.When the collocation of range hood function is mechanical and is made During with LED, both without price advantage, and space-consuming.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.
Therefore, a purpose of the present utility model is to propose a kind of AC LED lamp for range hood, the exchange LED converts the voltage into module and is integrally disposed on power panel, can be directly connected to electric main use, can both reduce cost, Space can be saved again, and use range is wide, easy for installation.
Another purpose of the present utility model is to propose a kind of AC LED lamp.
To reach above-mentioned purpose, on the one hand the utility model proposes a kind of AC LED lamp for range hood, wrap Include：Shell；Lamp holder, the lamp holder is connecting electric main；Light source board, the light source board are provided with multiple LED；Power panel, The power panel is connected with the light source board, and is respectively provided with the housing, and the power panel is connected with the lamp holder, described It is provided with voltage transformation module on power panel, the voltage transformation module by the electric main being converted to predeterminated voltage Direct current, and the light source board is supplied to, the multiple LED lights after light source board energization.
According to the AC LED lamp of the present utility model for range hood, voltage transformation module is provided with power panel, with The electric main is converted to the direct current of predeterminated voltage, and is supplied to light source board, multiple LED are sent out after light source board energization Light.Thus, the AC LED lamp converts the voltage into module and is integrally disposed on power panel, can be directly connected to electric main use, both Cost can be reduced, space can be saved again, and use range is wide, easy for installation.
In addition, can also be had according to the utility model AC LED lamp for range hood set forth above following attached Add technical characteristic：
Specifically, the light source board is SMD light source.
Specifically, the above-mentioned AC LED lamp for range hood also includes cell-shell, and the cell-shell is adjusting the light The luminosity of source plate.
Specifically, the multiple LED is set in array fashion.
Specifically, the voltage transformation module includes：Rectification unit, the input of the rectification unit and the lamp holder phase Even, the rectification unit by the electric main being converted to Rectified alternating current；Lowering and stabilizing blood pressure unit, the lowering and stabilizing blood pressure list Member input be connected with the output end of the rectification unit, with the Rectified alternating current is depressured and voltage stabilizing handle with defeated Go out the direct current of the predeterminated voltage.
Further, the rectification unit includes rectifier bridge, and the lowering and stabilizing blood pressure unit includes voltage-dropping type constant current driving core Piece, wherein, the power pins of the voltage-dropping type constant-current driven chip are connected by charging circuit with the output end of the rectifier bridge； The open-circuit voltage of the voltage-dropping type constant-current driven chip sets pin to pass through first resistor and the direct current output of the rectification unit Negative end is connected；The peak point current of the voltage-dropping type constant-current driven chip sets pin to pass through the second resistance and the rectification The direct current output negative end of bridge is connected；The internal high pressure power MOS pipe drain lead of the voltage-dropping type constant-current driven chip passes through Power conditioning circuitry is connected with the input of the light source board to be powered to the light source board.
Further, the charging circuit includes：First electrochemical capacitor, the positive terminal of first electrochemical capacitor and institute The direct current output forward end for stating rectifier bridge is connected, and the direct current output of the negative pole end and the rectifier bridge of first electrochemical capacitor is born It is connected to end；3rd resistor, one end of the 3rd resistor are connected with the positive terminal of first electrochemical capacitor, the 4th resistance, One end of 4th resistance is connected with the other end of the 3rd resistor, the first electric capacity, one end of first electric capacity and institute The other end for stating the 4th resistance is connected, and the other end of first electric capacity is connected with the negative pole end of first electrochemical capacitor, and The other end of 4th resistance has the first tie point, first tie point and the electricity with one end of first electric capacity Source pin is connected.
Specifically, the power conditioning circuitry includes：Fly-wheel diode, the anode and internal high pressure of the fly-wheel diode Power MOS pipe drain lead is connected, and the negative electrode of the fly-wheel diode is connected with the positive input terminal of the light source board；First electricity Sense, one end of first inductance is connected with the anode of the fly-wheel diode；Second electrochemical capacitor, second electrochemical capacitor Negative pole end be connected with the other end of first inductance, and the other end of first inductance and second electrochemical capacitor There is the second tie point, second tie point is connected with the negative input end of the light source board between negative pole end.
Specifically, the voltage transformation module also includes filter unit, and the filter unit is connected to the rectification unit Between the lowering and stabilizing blood pressure unit, the filter unit includes：Second inductance, one end and the rectification of second inductance The direct current output forward end of bridge is connected, the other end of second inductance and the positive terminal of first electrochemical capacitor and institute respectively The one end for stating 3rd resistor is connected；5th resistance, the 5th resistance and second inductance in parallel；Second electric capacity, described One end of two electric capacity is connected with the direct current output forward end of the rectifier bridge and one end of second inductance respectively, and described second The other end of electric capacity is connected with the direct current output negative end of the rectifier bridge.
To reach above-mentioned purpose, on the other hand a kind of range hood that the utility model proposes, it includes above-mentioned be used for The AC LED lamp of cigarette machine.
Range hood of the present utility model, by the above-mentioned AC LED lamp for cigarette machine, can both reduce complete machine into This, can save space again.
Brief description of the drawings
The above-mentioned and/or additional aspect of the utility model and advantage from the following description of the accompanying drawings of embodiments will Become obvious and be readily appreciated that, wherein,
Fig. 1 is the structural representation according to the AC LED lamp for range hood of the utility model one embodiment；
Fig. 2 is the structural representation according to the AC LED lamp for range hood of the utility model another embodiment；
Fig. 3 is the schematic appearance according to the AC LED lamp for range hood of the utility model one embodiment；With And
Fig. 4 is the circuit diagram according to the voltage transformation module of the utility model one embodiment.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.
Below with reference to the accompanying drawings the AC LED lamp for range hood of the utility model embodiment proposition and oil suction described Cigarette machine.
Fig. 1 is the structural representation according to the AC LED lamp for range hood of the utility model one embodiment.Such as Shown in Fig. 1, the AC LED lamp includes：Shell 10, lamp holder 20, light source board 30 and power panel 40.
Wherein, lamp holder 10 is connecting electric main.Light source board 30 is provided with multiple LED.Power panel 40 and light source board 30 It is connected, and is arranged in shell 10, power panel 40 is connected with lamp holder 20, and voltage transformation module 50 is provided with power panel 40, Voltage transformation module 50 is supplied to light source board 30 electric main to be converted to the direct current of predeterminated voltage, and multiple LED exist Light source board 30 lights after being powered.Wherein, the direct current of predeterminated voltage can be preset according to actual conditions, generally DC12V.
It should be noted that in embodiment of the present utility model, light source board 30 is SMD light source, on light source board 30 Multiple LED are set in array fashion.
Specifically, after AC LED lamp is powered, it is the straight of 12V that electric main is converted to voltage by voltage transformation module 50 Stream electricity, to be powered to light source board 30, light source board 30 lights after powered up.Because voltage transformation module 50 is to be integrally disposed in power supply On plate 40, therefore, the AC LED lamp can be directly connected to electric main use, without being individually equipped with potential device, can both drop Low cost, space can be saved again, and use range is wide, easy for installation.When the AC LED lamp is applied to range hood, meeting Make price and the space of range hood more advantageous.
According to one embodiment of the present utility model, as shown in Fig. 2 the above-mentioned AC LED lamp for range hood is also Cell-shell 60 can be included, cell-shell 60 is adjusting the luminosity of light source board 30.After assembling, its structure is as shown in Figure 3.
The direct current how voltage transformation module 50 to be converted to electric main predeterminated voltage is specifically described below in conjunction with Fig. 4 Electricity.
As shown in figure 4, voltage transformation module 50 can include：Rectification unit 501 and lowering and stabilizing blood pressure unit 502.
Wherein, the input of rectification unit 501 is connected with lamp holder 20, and rectification unit 501 is electric main AC to be changed For Rectified alternating current.The input of lowering and stabilizing blood pressure unit 502 is connected with the output end of rectification unit 501, with to Rectified alternating current Decompression and voltage stabilizing processing are carried out to export the direct current of predeterminated voltage.
Further, according to one embodiment of the present utility model, as shown in figure 4, rectification unit 501 includes rectifier bridge, Lowering and stabilizing blood pressure unit 502 includes voltage-dropping type constant-current driven chip, wherein, the power pins VCC of voltage-dropping type constant-current driven chip leads to Overcharge circuit 101 is connected with the output end of rectifier bridge.The open-circuit voltage of voltage-dropping type constant-current driven chip sets pin OVP to pass through First resistor R1 is connected with the direct current output negative end V- of rectification unit 501.The peak point current of voltage-dropping type constant-current driven chip is set Pin CS is put by second resistance R2 with the direct current output negative end V- of rectifier bridge to be connected.The inside of voltage-dropping type constant-current driven chip High-voltage power metal-oxide-semiconductor drain lead DRAIN is connected with to light source board by power conditioning circuitry 102 with the input of light source board 30 30 power supplies.The NC pins of voltage-dropping type constant-current driven chip are hanging.
Specifically, the model of voltage-dropping type constant-current driven chip can be MT7811B, and it works in zero current passing, peak value The critical conduction mode of switch off current, built-in overcurrent protection, overheat protector, short-circuit protection and moisture-proof function, and user-programmable Open-circuit voltage is set, and operating efficiency is high and cost is low.By adjusting first resistor R1, voltage-dropping type constant-current driven chip can be set Open-circuit voltage threshold value, by adjusting second resistance R2, the peak point current of voltage-dropping type constant-current driven chip can be set.
After AC LED lamp is powered, electric main AC rectifications can be Rectified alternating current by rectifier bridge, and voltage-dropping type constant current drives Rectified alternating current is carried out chip 5021 into decompression and voltage stabilizing is handled, and generates the direct current of predeterminated voltage to be powered to light source board 30.
Further, as shown in figure 4, charging circuit 101 includes：First electrochemical capacitor Cr1,3rd resistor R3, the 4th electricity Hinder R4 and the first electric capacity C1.
Wherein, the first electrochemical capacitor Cr1 positive terminal is connected with the direct current output forward end V+ of rectifier bridge, the first electrolysis electricity The negative pole end for holding Cr1 is connected with the direct current output negative end V- of rectifier bridge.3rd resistor R3 one end and the first electrochemical capacitor Cr1 Positive terminal be connected.4th resistance R4 one end is connected with the 3rd resistor R3 other end.First electric capacity C1 one end and the 4th The resistance R4 other end is connected, and the first electric capacity C1 other end is connected with the first electrochemical capacitor Cr1 negative pole end, and the 4th resistance There is the first tie point Q1, the first tie point Q1 to be connected with power pins VCC for the R4 other end and the first electric capacity C1 one end.
Specifically, when upper electric, VCC is charged by starting resistance R3 and R4.When VCC reaches 12V, control logic is begun to Work, internal switch start switch motion.If VCC is increased to 15.5V, it is clamped.If VCC is less than 5.5V, MT7811B will be closed.
As shown in figure 4, power conditioning circuitry 102 includes：Sustained diode, the first inductance L1 and the second electrochemical capacitor Cr2。
Wherein, the anode of sustained diode is connected with internal high pressure power MOS pipe drain lead DRAIN, fly-wheel diode D negative electrode is connected with the positive input terminal LED+ of light source board 30.First inductance L1 one end is connected with the anode of sustained diode. Second electrochemical capacitor Cr2 negative pole end is connected with the first inductance L1 other end, and the first inductance L1 other end and the second electricity There is the second tie point Q2, the second tie point Q2 and light source board 30 negative input end LED- phases between solution electric capacity Cr2 negative pole end Even.
Specifically, sustained diode is to the electronic component in protection circuit.Second electrochemical capacitor Cr2 is filter capacitor. First inductance L1 is power inductance, by adjusting the L1 power for being sized so that voltage transformation module 50 and the work(of AC LED lamp Rate matches.
To reduce input to the ripple component of the direct current of light source board 30, in embodiment of the present utility model, such as Fig. 4 institutes Show, voltage transformation module 50 can also include filter unit 503, and filter unit 503 is connected to rectification unit 501 and lowering and stabilizing blood pressure Between unit 502, filter unit 503 includes：Second inductance L2, the 5th resistance R5 and the second electric capacity C2.
Wherein, the second inductance L2 one end is connected with the direct current output forward end V+ of rectifier bridge, and the second inductance C2's is another End is connected with the first electrochemical capacitor Cr1 positive terminal respectively and 3rd resistor R3 one end.5th resistance R5 and the second inductance L2 It is in parallel.The one end of second electric capacity C2 one end respectively with the direct current output forward end V+ and the second inductance L2 of rectifier bridge is connected, the The two electric capacity C2 other end is connected with the direct current output negative end V- of rectifier bridge.
Specifically, the filter unit 503 is reached using the energy storage effect of reactance component (the second inductance L2 and the second electric capacity C2) Retain the purpose of flip-flop to reduction alternating component, so that output is smoother to the direct current of light source board 30.
In summary, according to the AC LED lamp for range hood of the utility model embodiment, it is provided with power panel Voltage transformation module, the electric main is converted to the direct current of predeterminated voltage, and is supplied to light source board, multiple LED exist Light source board lights after being powered.Thus, the AC LED lamp converts the voltage into module and is integrally disposed on power panel, can be directly connected to Electric main uses, and can both reduce cost, can save space again, and use range is wide, easy for installation.
In addition, the utility model also proposes a kind of range hood, it includes the above-mentioned AC LED lamp for cigarette machine.
The range hood of the utility model embodiment, by the above-mentioned AC LED lamp for cigarette machine, it can both reduce whole Machine cost, space can be saved again.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two It is individual, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two The connection of element internal or the interaction relationship of two elements, limited unless otherwise clear and definite.For the common skill of this area For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (10)

  1. A kind of 1. AC LED lamp for range hood, it is characterised in that including：
    Shell；
    Lamp holder, the lamp holder is connecting electric main；
    Light source board, the light source board are provided with multiple LED；
    Power panel, the power panel are connected with the light source board, and are respectively provided with the housing, the power panel and the lamp Head is connected, and is provided with voltage transformation module on the power panel, and the voltage transformation module is the electric main to be changed For the direct current of predeterminated voltage, and the light source board is supplied to, the multiple LED lights after light source board energization.
  2. 2. it is used for the AC LED lamp of range hood as claimed in claim 1, it is characterised in that the light source board is SMD Light source.
  3. 3. it is used for the AC LED lamp of range hood as claimed in claim 1 or 2, it is characterised in that described also including cell-shell Cell-shell is adjusting the luminosity of the light source board.
  4. 4. it is used for the AC LED lamp of range hood as claimed in claim 1, it is characterised in that the multiple LED is with array Mode is set.
  5. 5. it is used for the AC LED lamp of range hood as claimed in claim 1, it is characterised in that the voltage transformation module bag Include：
    Rectification unit, the input of the rectification unit are connected with the lamp holder, and the rectification unit is to by the exchange city Electricity is converted to Rectified alternating current；
    Lowering and stabilizing blood pressure unit, the input of the lowering and stabilizing blood pressure unit is connected with the output end of the rectification unit, with to described Rectified alternating current carries out decompression and voltage stabilizing processing to export the direct current of the predeterminated voltage.
  6. 6. it is used for the AC LED lamp of range hood as claimed in claim 5, it is characterised in that the rectification unit includes whole Bridge is flowed, the lowering and stabilizing blood pressure unit includes voltage-dropping type constant-current driven chip, wherein,
    The power pins of the voltage-dropping type constant-current driven chip are connected by charging circuit with the output end of the rectifier bridge；
    The open-circuit voltage of the voltage-dropping type constant-current driven chip sets pin to pass through first resistor and the direct current of the rectification unit Output negative end is connected；
    The peak point current of the voltage-dropping type constant-current driven chip sets pin defeated by second resistance and the direct current of the rectifier bridge Go out negative end to be connected；
    The internal high pressure power MOS pipe drain lead of the voltage-dropping type constant-current driven chip passes through power conditioning circuitry and the light The input of source plate is connected to be powered to the light source board.
  7. 7. it is used for the AC LED lamp of range hood as claimed in claim 6, it is characterised in that the charging circuit includes：
    First electrochemical capacitor, the positive terminal of first electrochemical capacitor are connected with the direct current output forward end of the rectifier bridge, institute The negative pole end of the first electrochemical capacitor is stated with the direct current output negative end of the rectifier bridge to be connected；
    3rd resistor, one end of the 3rd resistor are connected with the positive terminal of first electrochemical capacitor,
    4th resistance, one end of the 4th resistance are connected with the other end of the 3rd resistor,
    First electric capacity, one end of first electric capacity are connected with the other end of the 4th resistance, first electric capacity it is another End is connected with the negative pole end of first electrochemical capacitor, and one end of the other end of the 4th resistance and first electric capacity has There is the first tie point, first tie point is connected with the power pins.
  8. 8. it is used for the AC LED lamp of range hood as claimed in claim 6, it is characterised in that the power conditioning circuitry bag Include：
    Fly-wheel diode, the anode of the fly-wheel diode are connected with internal high pressure power MOS pipe drain lead, the afterflow two The negative electrode of pole pipe is connected with the positive input terminal of the light source board；
    First inductance, one end of first inductance are connected with the anode of the fly-wheel diode；
    Second electrochemical capacitor, the negative pole end of second electrochemical capacitor are connected with the other end of first inductance, and described There is the second tie point, second tie point and institute between the negative pole end of the other end of one inductance and second electrochemical capacitor The negative input end for stating light source board is connected.
  9. 9. it is used for the AC LED lamp of range hood as claimed in claim 8, it is characterised in that the voltage transformation module is also Including filter unit, the filter unit is connected between the rectification unit and the lowering and stabilizing blood pressure unit, and the filtering is single Member includes：
    Second inductance, one end of second inductance are connected with the direct current output forward end of the rectifier bridge, second inductance The other end be connected respectively with the positive terminal of the first electrochemical capacitor and one end of 3rd resistor；
    5th resistance, the 5th resistance and second inductance in parallel；
    Second electric capacity, one end of second electric capacity direct current output forward end with the rectifier bridge and second inductance respectively One end be connected, the other end of second electric capacity is connected with the direct current output negative end of the rectifier bridge.
  10. 10. a kind of range hood, it is characterised in that including as claimed in any one of claims 1-9 wherein for range hood AC LED lamp.
CN201720576775.2U 2017-05-22 2017-05-22 Range hood and the AC LED lamp for range hood Expired - Fee Related CN206943844U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720576775.2U CN206943844U (en) 2017-05-22 2017-05-22 Range hood and the AC LED lamp for range hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720576775.2U CN206943844U (en) 2017-05-22 2017-05-22 Range hood and the AC LED lamp for range hood

Publications (1)

Publication Number Publication Date
CN206943844U true CN206943844U (en) 2018-01-30

Family

ID=61360984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720576775.2U Expired - Fee Related CN206943844U (en) 2017-05-22 2017-05-22 Range hood and the AC LED lamp for range hood

Country Status (1)

Country Link
CN (1) CN206943844U (en)

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Granted publication date: 20180130

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