CN212677410U - Indicator lamp control circuit of electric cooker - Google Patents
Indicator lamp control circuit of electric cooker Download PDFInfo
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- CN212677410U CN212677410U CN202021130408.8U CN202021130408U CN212677410U CN 212677410 U CN212677410 U CN 212677410U CN 202021130408 U CN202021130408 U CN 202021130408U CN 212677410 U CN212677410 U CN 212677410U
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- 238000010411 cooking Methods 0.000 claims abstract description 108
- 238000004321 preservation Methods 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 241000209094 Oryza Species 0.000 claims description 37
- 235000007164 Oryza sativa Nutrition 0.000 claims description 37
- 235000009566 rice Nutrition 0.000 claims description 37
- 235000021395 porridge Nutrition 0.000 claims description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses an indicator lamp control circuit of an electric cooker, which comprises a first control switch, a heat preservation temperature controller, a cooking indicator lamp and a heat preservation indicator lamp, wherein a power supply of the electric cooker, the first control switch and a heating device of the electric cooker are connected in series; the first control switch is a first single-pole double-throw switch and comprises a first fixed end, a first selectable end and a second selectable end; the heat preservation temperature controller is connected between the first fixed end and the first selectable end in parallel; the first fixed end is connected with a zero line, the first selectable end is connected with the first end of the heating device, and the second end of the heating device is connected with a live wire; the first selectable end is connected with the first end of the cooking indicator lamp, and the second end of the cooking indicator lamp is connected with the live wire; the second end of the heat preservation indicator lamp is connected with the live wire. According to the scheme of the embodiment, the problem of error indication of the display indicator lamp is solved, the hardware cost is reduced, and the problem that the machine is heated in a half-power mode due to the power diode is solved.
Description
Technical Field
The embodiment of the utility model provides a cooking equipment design field is related to, more specifically relates to an indicator lamp control circuit of electric rice cooker.
Background
The mechanical rice cooker is popular with users due to low sale price and simple operation, and occupies larger market share in the market of the rice cooker.
The mechanical rice cooker indicator lamp can be generally divided into a rice cooking/porridge cooking heating indicator lamp and a heat preservation indicator lamp, and the two indicator lamps can be used for distinguishing the working state of the machine, namely the rice cooking state or the heat preservation state
In the existing mechanical rice cooker, because the heat preservation loop and the cooking loop share one heating pipe for heating, and meanwhile, the machine is powered on to default a heat preservation working mode, when a user does not press a cooking/porridge cooking heating key to start the machine for cooking/porridge cooking, the machine can be powered on due to heat preservation heating, or two indicator lights are powered on simultaneously
In order to solve the above-mentioned problem, in the prior art, for example, patent CN203041818U discloses a mechanical electric cooker for preventing misindication. According to the technical scheme, the rice cooking/porridge cooking indicator lamp lighting loop and the heat preservation indicator lamp lighting loop are distinguished mainly by using a power diode mode, namely, the rice cooking indicator lamp lighting loop is disconnected by using the one-way conduction function of the power diode in the heat preservation state, and meanwhile, the conduction of the heat preservation indicator lamp lighting loop can be ensured, so that the heat preservation state is realized, the heat preservation indicator lamp is turned on, and the rice cooking/porridge cooking indicator lamp is turned off.
Although the technical scheme can solve the problem of wrong indication of the indication lamp of the mechanical rice cooker, the following two problems can exist due to the existence of the power diode in the circuit:
the first problem is that: due to the fact that the power diode is added to the circuit, redundant wiring harnesses are added, and therefore the problem of hardware cost increase is caused.
The second problem is that: due to the unidirectional conduction characteristic of the power diode in the circuit, the machine has the problem of half-power heating caused by the diode.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an indicator lamp control circuit of electricity rice cooker has solved the problem that the demonstration pilot lamp mistake that mechanical type rice cooker exists instructed, has reduced the hardware cost, also can solve the machine simultaneously and appear the problem of half power heating because of power diode's existence.
The embodiment of the utility model also provides an indicator lamp control circuit of an electric cooker, which can comprise a first control switch, a heat preservation temperature controller, a cooking indicator lamp and a heat preservation indicator lamp, wherein the electric cooker power supply, the first control switch and a heating device of the electric cooker are sequentially connected in series; the first control switch is a first single-pole double-throw switch which comprises a first fixed end, a first selectable end and a second selectable end; the heat-preservation temperature controller is connected between the first fixed end and the first optional end in parallel;
wherein the first fixed end is connected with the zero line input end of the power supply of the electric cooker,
the first selectable end is connected with the first end of the heating device, and the second end of the heating device is connected with the live wire input end of the power supply of the electric cooker;
the first selectable end is connected with the first end of the cooking indicator lamp, and the second end of the cooking indicator lamp is connected with the live wire input end of the power supply of the electric cooker;
the second selectable end is connected with the first end of the heat preservation indicator lamp, and the second end of the heat preservation indicator lamp is connected with the live wire input end of the electric cooker power supply;
the indicating lamp control circuit of the electric cooker can also comprise: a first diode; the anode of the first diode is connected with the first end of the heat preservation indicator lamp, and the cathode of the first diode is connected with the second end of the cooking indicator lamp.
In an exemplary embodiment of the present invention, the indicating lamp control circuit of the electric rice cooker may further include: a second diode;
the first selectable end is connected with the first end of the cooking indicator lamp through the second diode;
wherein the anode of the second diode is connected with the first selectable end, and the cathode of the second diode is connected with the first end of the cooking indicator lamp.
In an exemplary embodiment of the present invention, the indicator light control circuit of the electric cooker may further include a second control switch;
the first selectable end is connected with the first end of the heating device through the second control switch;
the second control switch is set to switch the porridge cooking mode and the rice cooking mode.
In an exemplary embodiment of the present invention, the indicator light control circuit of the electric cooker may further include a porridge cooking control switch;
the second control switch is a second single-pole double-throw switch, and the second single-pole double-throw switch comprises a second fixed end, a porridge cooking selectable end and a rice cooking selectable end;
the second fixed end is connected with the first end of the heating device;
the porridge cooking selectable end is connected with the first end of the porridge cooking control switch, and the second end of the porridge cooking control switch is connected with the first selectable end;
the rice cooking selectable end is connected with the first selectable end.
In an exemplary embodiment of the present invention, the congee cooking control switch may include at least a first congee cooking control sub-switch and a second congee cooking control sub-switch connected in parallel to each other.
In an exemplary embodiment of the present invention, the electric rice cooker may include a rice cooking chamber;
the first porridge cooking control sub-switch is positioned at the top of the electric cooker, and the second porridge cooking control sub-switch is positioned at the bottom of the electric cooker.
In an exemplary embodiment of the present invention, the cooking indicator light is connected to the live wire input end of the power supply of the electric cooker through a first current limiting resistor;
the heat preservation indicator light is connected with the live wire input end of the electric cooker power supply through a second current limiting resistor.
In an exemplary embodiment of the present invention, the cooking indicator lamp may include: the first light-emitting diode and the third diode are connected in parallel in an opposite direction; the anode of the first light-emitting diode is connected with the second selectable end, and the cathode of the first light-emitting diode is connected with the live wire input end of the power supply of the electric cooker; the cathode of the third diode is connected with the anode of the first light-emitting diode, and the anode of the third diode is connected with the cathode of the first light-emitting diode;
the insulation indicating lamp may include: the second light-emitting diode and the fourth diode are connected in parallel in an opposite direction; the anode of the second light-emitting diode is connected with the first selectable end, and the cathode of the second light-emitting diode is connected with the live wire input end of the power supply of the electric cooker; and the cathode of the fourth diode is connected with the anode of the second light-emitting diode, and the anode of the fourth diode is connected with the cathode of the second light-emitting diode.
In an exemplary embodiment of the present invention, the first control switch may be a micro switch controlled by a magnetic steel.
The indicating lamp control circuit of the electric cooker provided by the embodiment of the utility model can comprise a first control switch, a heat preservation temperature controller, a cooking indicating lamp and a heat preservation indicating lamp, wherein a power supply of the electric cooker, the first control switch and a heating device of the electric cooker are connected in series in sequence; the first control switch is a first single-pole double-throw switch which comprises a first fixed end, a first selectable end and a second selectable end; the heat-preservation temperature controller is connected between the first fixed end and the first optional end in parallel; the first fixed end is connected with the zero line input end of the electric cooker power supply, the first selectable end is connected with the first end of the heating device, and the second end of the heating device is connected with the live line input end of the electric cooker power supply; the first selectable end is connected with the first end of the cooking indicator lamp, and the second end of the cooking indicator lamp is connected with the live wire input end of the power supply of the electric cooker; the second selectable end is connected with the first end of the heat preservation indicator lamp, and the second end of the heat preservation indicator lamp is connected with the live wire input end of the power supply of the electric cooker. According to the scheme of the embodiment, the cooking indicator lamp and the heat preservation indicator lamp are respectively connected with the first selectable end and the second selectable end of the first single-pole double-throw switch, so that the problem of error indication of the display indicator lamp in the mechanical rice cooker is solved, the hardware cost is reduced, and meanwhile, the problem of half-power heating of the machine due to the existence of the power diode is solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.
FIG. 1 is a block diagram of an indicator light control circuit of an electric rice cooker according to an embodiment of the present invention;
fig. 2 is a schematic view of the structure of the indicating lamp control circuit of the electric rice cooker of the embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The embodiment of the utility model also provides an indicator lamp control circuit of an electric cooker, as shown in figure 1, can include first control switch S1, heat preservation temperature controller S4, cook pilot lamp K1 and heat preservation pilot lamp K2, electric cooker power (such as live wire L and zero line N of 220V mains supply), first control switch S1 and electric cooker' S heating device H establish ties in proper order; the first control switch S1 is a first single pole double throw switch, the first single pole double throw switch S1 may include a first fixed terminal S1-1, a first selectable terminal S1-2 and a second selectable terminal S1-3; the heat preservation temperature controller S4 is connected in parallel between the first fixed end S1-1 and the first optional end S1-2;
wherein the first fixed end S1-1 is connected with the input end of a zero line N of the power supply of the electric cooker,
the first optional end S1-2 is connected with the first end of the heating device H, and the second end of the heating device H is connected with the live wire L input end of the power supply of the electric cooker;
the first optional end S1-2 is connected with the first end of the cooking indicator lamp K1, and the second end of the cooking indicator lamp K1 is connected with the live wire L input end of the electric cooker power supply;
the second optional end S1-3 is connected with the first end of the heat preservation indicator lamp K2, and the second end of the heat preservation indicator lamp K2 is connected with the live wire L input end of the electric cooker power supply.
In an exemplary embodiment of the present invention, the first control switch S1 may be a micro switch controlled by magnetic steel, so that when the temperature in the electric cooker reaches a preset temperature value, the first control switch S1 is closed to the second selectable terminal S1-3; when the temperature in the electric cooker does not reach the preset temperature value, the first control switch S1 is closed to the first selectable end S1-2.
In the exemplary embodiment of the present invention, when the temperature in the electric cooker reaches the preset temperature value, the temperature keeping controller S4 is closed.
In the exemplary embodiment of the present invention, when S1 is closed to the first selectable end S1-2, for a cooking operation (e.g., a rice cooking operation or a porridge cooking operation), the cooking indicator K1 is connected to the power source, and the cooking indicator K1 is turned on; when the second optional end S1-3 is closed by S1, the heat preservation indicator lamp K2 is connected with the power supply for heat preservation operation, and the heat preservation indicator lamp K2 is lightened.
In an exemplary embodiment of the present invention, the indicating lamp control circuit of the electric rice cooker may further include: a first diode D1;
the anode of the first diode D1 is connected with the first end of the heat preservation indicator lamp K2, and the cathode of the first diode D1 is connected with the second end of the cooking indicator lamp K1.
In the exemplary embodiment of the utility model, when S1 closed second optional end S1-3, for the heat preservation work, heat preservation pilot lamp K2 lights the return circuit and switches on this moment, boils to eat pilot lamp K1 lights the return circuit and is clamped by first diode D1, is in the off-state, therefore boils to eat pilot lamp K1 and goes out, and heat preservation pilot lamp K2 lights. The problem of false indication that the cooking indicator lamp K1 and the heat preservation indicator lamp K2 are simultaneously on or the heat preservation indicator lamp K2 is on when a heat preservation key is not pressed is avoided.
In an exemplary embodiment of the present invention, the indicating lamp control circuit of the electric rice cooker may further include: a second diode D2;
the first selectable terminal S1-2 is connected with the first terminal of the cooking indicator lamp K1 through the second diode D2;
wherein the anode of the second diode D2 is connected to the first selectable terminal S1-2, and the cathode of the second diode D2 is connected to the first terminal of the cooking indicator lamp K1.
In the exemplary embodiment of the present invention, the function of the ordinary diode of the second diode D2 is utilized to avoid the problem of half-power heating of the machine, so that the problems of the prior art that the hardware cost is relatively high and half-power heating exists due to the existence of the power diode can be solved.
In an exemplary embodiment of the present invention, the indicator light control circuit of the electric cooker may further include a second control switch S2;
the first selectable terminal S1-2 is connected with the first terminal of the heating device H through the second control switch S2;
the second control switch S2 is configured to switch between a porridge cooking mode and a rice cooking mode.
In an exemplary embodiment of the present invention, the indicator light control circuit of the electric cooker may further include a porridge cooking control switch S3;
the second control switch S2 is a second single-pole double-throw switch comprising a second fixed end S2-1, a porridge cooking selectable end S2-2 and a rice cooking selectable end S2-3;
the second fixed end S2-1 is connected with a first end of the heating device H;
the porridge cooking selectable terminal S2-2 is connected with a first terminal of the porridge cooking control switch S3, and a second terminal of the porridge cooking control switch S3 is connected with the first selectable terminal S1-2;
the cooking selectable terminal S2-2 is connected to the first selectable terminal S1-2.
In the exemplary embodiment of the utility model, when S1 closes to first optional end S1-2, if S2 closes to optional end S2-2 of cooking the congee, for the work of cooking the congee, the circuit disconnection of lighting of heat preservation pilot lamp K2 this moment, cook and eat pilot lamp K1 and light the circuit and switch on, cook and eat pilot lamp K1 and light, heat preservation pilot lamp K2 goes out.
In the exemplary embodiment of the present invention, when S1 is closed to the first selectable end S1-2, if S2 is closed to the selectable end S2-3 of cooking, for the cooking work, the lighting circuit of the heat preservation indicator K2 is disconnected, the lighting circuit of the cooking indicator K1 is turned on, the cooking indicator K1 is turned on, and the heat preservation indicator K2 is turned off.
In an exemplary embodiment of the present invention, the congee cooking control switch S3 may include at least a first congee cooking control sub-switch S3-1 and a second congee cooking control sub-switch S3-2 connected in parallel to each other.
In an exemplary embodiment of the present invention, the electric rice cooker may include a rice cooking chamber;
the first porridge cooking control sub-switch S3-1 is positioned at the top of the electric cooker, and the second porridge cooking control sub-switch S3-2 is positioned at the bottom of the electric cooker.
In the exemplary embodiment of the present invention, the cooking indicator K1 is connected to the input end of the power line L of the electric cooker power supply through a first current limiting resistor R1;
the heat preservation indicator lamp K2 is connected with the live wire L input end of the electric cooker power supply through a second current limiting resistor R2.
In an exemplary embodiment of the present invention, the cooking indicator K1 may include: a first light emitting diode LED1 and a third diode D3 connected in anti-parallel; the anode of the first light-emitting diode LED1 is connected with the second optional end S1-3, and the cathode of the first light-emitting diode LED1 is connected with the live wire L input end of the electric cooker power supply; a cathode of the third diode D3 is connected to an anode of the first light emitting diode LED1, and an anode of the third diode D3 is connected to a cathode of the first light emitting diode LED 1;
the heat preservation indicator lamp K2 may include: a second light emitting diode LED2 and a fourth diode D4 connected in anti-parallel; the anode of the second light-emitting diode LED2 is connected with the first selectable end, and the cathode of the second light-emitting diode LED2 is connected with the live wire L input end of the electric cooker power supply; a cathode of the fourth diode D4 is connected to an anode of the second light emitting diode LED2, and an anode of the fourth diode D4 is connected to a cathode of the second light emitting diode LED 2.
In the exemplary embodiment of the utility model, this mechanical type electricity rice cooker pilot lamp control scheme does not adopt the power diode, and utilized ordinary diode, first diode D1's clamping effect promptly, the clamp is cooked the pilot lamp K1 (or call cook/cook congee pilot lamp) voltage, avoided cooking pilot lamp K1 and heat preservation pilot lamp K2 and bright simultaneously, perhaps do not press the heat preservation key heat preservation pilot lamp problem of bright mistake promptly, the ordinary diode that also utilizes simultaneously, second diode D2's effect promptly, avoid the machine to have the problem of half power heating, consequently, can solve prior art and lead to the problem that hardware cost is higher relatively and there is half power heating because of the existence of power diode.
In the exemplary embodiment of the utility model, the lower hardware cost is utilized, and the rice cooking/porridge cooking heating indicator lamp is turned on and the heat preservation indicator lamp is turned off when the machine is in the rice cooking/porridge cooking working state; when the machine is in a heat preservation working state, the rice cooking/porridge cooking heating indicator lamp is turned off, and the heat preservation indicator lamp is turned on; meanwhile, the problem that the machine has half-power heating due to a power diode is also avoided.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An indicator lamp control circuit of an electric cooker is characterized by comprising a first control switch, a heat preservation temperature controller, a cooking indicator lamp and a heat preservation indicator lamp, wherein a power supply of the electric cooker, the first control switch and a heating device of the electric cooker are sequentially connected in series; the first control switch is a first single-pole double-throw switch which comprises a first fixed end, a first selectable end and a second selectable end; the heat-preservation temperature controller is connected between the first fixed end and the first optional end in parallel;
wherein the first fixed end is connected with the zero line input end of the power supply of the electric cooker,
the first selectable end is connected with the first end of the heating device, and the second end of the heating device is connected with the live wire input end of the power supply of the electric cooker;
the first selectable end is connected with the first end of the cooking indicator lamp, and the second end of the cooking indicator lamp is connected with the live wire input end of the power supply of the electric cooker;
the second selectable end is connected with the first end of the heat preservation indicator lamp, and the second end of the heat preservation indicator lamp is connected with the live wire input end of the power supply of the electric cooker.
2. The indicator lamp control circuit of the electric cooker according to claim 1, further comprising: a first diode;
the anode of the first diode is connected with the first end of the heat preservation indicator lamp, and the cathode of the first diode is connected with the second end of the cooking indicator lamp.
3. The indicator lamp control circuit of the electric cooker according to claim 1, further comprising: a second diode;
the first selectable end is connected with the first end of the cooking indicator lamp through the second diode;
wherein the anode of the second diode is connected with the first selectable end, and the cathode of the second diode is connected with the first end of the cooking indicator lamp.
4. The indicator light control circuit of the electric cooker as claimed in claim 1 or 2, further comprising a second control switch;
the first selectable end is connected with the first end of the heating device through the second control switch;
the second control switch is set to switch the porridge cooking mode and the rice cooking mode.
5. The indicator light control circuit of the electric cooker according to claim 4, further comprising a porridge cooking control switch;
the second control switch is a second single-pole double-throw switch, and the second single-pole double-throw switch comprises a second fixed end, a porridge cooking selectable end and a rice cooking selectable end;
the second fixed end is connected with the first end of the heating device;
the porridge cooking selectable end is connected with the first end of the porridge cooking control switch, and the second end of the porridge cooking control switch is connected with the first selectable end;
the rice cooking selectable end is connected with the first selectable end.
6. The indicator lamp control circuit of the electric cooker according to claim 5, wherein the porridge cooking control switch comprises at least a first porridge cooking control sub-switch and a second porridge cooking control sub-switch connected in parallel with each other.
7. The indicator light control circuit of the electric cooker according to claim 6, wherein the electric cooker comprises a rice cooking cavity;
the first porridge cooking control sub-switch is positioned at the top of the electric cooker, and the second porridge cooking control sub-switch is positioned at the bottom of the electric cooker.
8. The indicating lamp control circuit of the electric cooker as claimed in any one of claims 1 to 3, wherein the cooking indicating lamp is connected with the live wire input end of the electric cooker power supply through a first current limiting resistor;
the heat preservation indicator light is connected with the live wire input end of the electric cooker power supply through a second current limiting resistor.
9. The indicator lamp control circuit of the electric cooker as claimed in any one of claims 1 to 3, wherein the cooking indicator lamp comprises: the first light-emitting diode and the third diode are connected in parallel in an opposite direction; the anode of the first light-emitting diode is connected with the second selectable end, and the cathode of the first light-emitting diode is connected with the live wire input end of the power supply of the electric cooker; the cathode of the third diode is connected with the anode of the first light-emitting diode, and the anode of the third diode is connected with the cathode of the first light-emitting diode;
the heat preservation pilot lamp includes: the second light-emitting diode and the fourth diode are connected in parallel in an opposite direction; the anode of the second light-emitting diode is connected with the first selectable end, and the cathode of the second light-emitting diode is connected with the live wire input end of the power supply of the electric cooker; and the cathode of the fourth diode is connected with the anode of the second light-emitting diode, and the anode of the fourth diode is connected with the cathode of the second light-emitting diode.
10. The indicating lamp control circuit of the electric cooker as claimed in any one of claims 1-3, wherein the first control switch is a microswitch controlled by the temperature of the magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130408.8U CN212677410U (en) | 2020-06-17 | 2020-06-17 | Indicator lamp control circuit of electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130408.8U CN212677410U (en) | 2020-06-17 | 2020-06-17 | Indicator lamp control circuit of electric cooker |
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| Publication Number | Publication Date |
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| CN212677410U true CN212677410U (en) | 2021-03-09 |
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| CN202021130408.8U Active CN212677410U (en) | 2020-06-17 | 2020-06-17 | Indicator lamp control circuit of electric cooker |
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| CN (1) | CN212677410U (en) |
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2020
- 2020-06-17 CN CN202021130408.8U patent/CN212677410U/en active Active
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Effective date of registration: 20240513 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Country or region after: China Address before: 310018 No. 760 Yinhai Street, Xiasha Street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Patentee before: HANGZHOU JIUYANG HOUSEHOLD ELECTRICAL APPLIANCES CO.,LTD. Country or region before: China |
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