CN215570643U - Microwave oven convenient to installation and effective ground connection - Google Patents
Microwave oven convenient to installation and effective ground connection Download PDFInfo
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- CN215570643U CN215570643U CN202120928642.3U CN202120928642U CN215570643U CN 215570643 U CN215570643 U CN 215570643U CN 202120928642 U CN202120928642 U CN 202120928642U CN 215570643 U CN215570643 U CN 215570643U
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- 238000009434 installation Methods 0.000 title abstract description 7
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 238000010411 cooking Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 150000002739 metals Chemical class 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a microwave oven which is convenient to install and is effectively grounded, comprising a shell and a circuit electronic device, wherein the shell forms a cavity for cooking food and an electric appliance chamber for installing the circuit electronic device of the microwave oven; the circuit electronic device comprises a power supply assembly, a high-voltage assembly and a hardware fan support, wherein the hardware fan support is communicated with the shell in a contact manner, and comprises a first grounding connection point and a second grounding connection point; a grounding wire in the power wire is connected to a first grounding connection point of the hardware fan bracket; the high-voltage component is connected to the second grounding connection point of the hardware fan bracket through a high-voltage capacitor. By using a novel grounding mode, the utility model increases the safe grounding effect of the whole electromechanical device of the microwave oven and reduces the occurrence of electric shock; the installation convenience is increased, the assembly time of the whole machine is shortened, and the risk of poor grounding caused by the improper fixation of the screw is reduced; the number of the installed parts is reduced, the after-sale maintenance probability of the product is reduced, and the maintenance cost and the cost of the whole machine are reduced.
Description
Technical Field
The utility model relates to the technical field of household appliance structures, in particular to a microwave oven which is convenient to install and is effectively grounded.
Background
The ground protection is a common protection structure of household appliances, and is often used in the high-power household appliances in particular. The existing traditional microwave oven needs two places for grounding, which are respectively: the power line grounding terminal is fixed on the rear plate, the high-voltage capacitor is connected with the high-voltage diode and then fixed on the bottom plate, the mounting structure is complex, the installation work time of workers is long, the labor cost is high, two grounding parts are fixed by the workers through screws, the grounding parts are multiple, the risk of poor grounding caused by the fact that the screws cannot be fixed in place is high, the reliability is low, and the personal health is damaged when poor products flow into the market seriously; the number of parts required to be installed is large, the material cost of the whole machine is high, the after-sale maintenance probability is high, and the maintenance cost is high. The traditional grounding mode of the microwave oven is shown in fig. 4, a grounding wire in a power line needs to be fixed on an outer rear plate through a grounding screw, but because a plastic fan support is used by the whole microwave oven, a plastic part cannot generate a grounding effect with the outer rear plate, a high-voltage capacitor on the whole microwave oven cannot be directly grounded, and the other end of a high-voltage diode connected with the high-voltage diode still needs to be fixed on a bottom plate through a grounding screw by a worker to achieve an effective grounding function. In conclusion, the traditional grounding mode of the microwave oven needs to ensure that the whole microwave oven achieves the grounding effect by an installation mode of fixing two grounding screws by workers, the number of the grounding positions is large, the risk of improper screw fixation is increased, the risk of poor grounding is high, the reliability is not strong, and the personal health is damaged when bad products flow into the market seriously.
Disclosure of Invention
Against this background and the problems with the prior art methods, the present invention provides a microwave oven that is easy to install and that is effectively grounded. The technical scheme of the utility model is as follows:
a microwave oven which is easy to install and is effectively grounded comprises a shell and circuit electronic devices, wherein the shell forms a cavity for cooking food and an electric appliance chamber for installing the circuit electronic devices of the microwave oven, and the circuit electronic devices are installed in the electric appliance chamber; the circuit electronic device comprises a power supply assembly, a high-voltage assembly and a fan assembly, wherein the fan assembly comprises a hardware fan support, the hardware fan support is communicated with the shell in a contact mode, and the hardware fan support comprises a first grounding connection point and a second grounding connection point; the power supply assembly comprises a power line and a filter plate, and a ground wire in the power line is connected to a first ground connection point of the hardware fan support and is communicated with the shell through the hardware fan support; the high-voltage component comprises a high-voltage capacitor, a high-voltage diode and a high-voltage transformer, and the high-voltage component is connected to the second grounding connection point of the hardware fan support through the hardware fan support and the shell.
As a further illustration of the present invention, the ground wire in the power cord is secured to the hardware fan bracket by a ground screw.
Further, the high-voltage transformer of the high-voltage assembly is communicated with the high-voltage capacitor through a wire harness.
Furthermore, on high-voltage diode one end was connected high-voltage capacitor's the plug terminal, the welding of one end was on high-voltage capacitor's metal surface in addition, high-voltage capacitor is linked together with the second ground connection tie point of five metals fan support, with the casing forms safe ground return circuit, reaches effective grounded function.
Further, the casing includes outer back plate and the bottom plate of reciprocal anchorage intercommunication, the upper right side of back plate is installed outside to the power cord, the filtering board is installed in five metals fan bracket top, five metals fan bracket mounting is inboard at outer back plate, high-voltage component installs on the bottom plate, high-voltage capacitor fixes in five metals fan bracket below.
The utility model has the beneficial effects that:
by using a novel grounding mode, the utility model increases the safe grounding effect of the whole electromechanical device of the microwave oven and reduces the occurrence of electric shock; the installation convenience is increased, the assembly time of the whole machine is shortened, and the risk of poor grounding caused by the improper fixation of the screw is reduced; the number of the installed parts is reduced, the after-sale maintenance probability of the product is reduced, and the maintenance cost and the cost of the whole machine are reduced.
Drawings
FIG. 1 is an overall view of a microwave oven according to the present invention;
FIG. 2 is a partial enlarged view of a first connection point of the hardware fan bracket of the present invention;
FIG. 3 is an enlarged view of a second attachment point of the hardware fan bracket of the present invention;
fig. 4 is a structure view of a ground structure of a general microwave oven.
Reference numerals: cavity 1, power cord 2, filtering board 3, outer back plate 4, five metals fan support 5, high-voltage capacitor 6, high-voltage diode 7, bottom plate 8, high-voltage transformer 9, ground screw 10.
Detailed Description
Example (b):
the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely a part of the embodiments of the utility model, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a microwave oven, which is easy to install and effectively grounded, includes a case forming a cavity 1 for cooking food and an appliance room for installing microwave oven circuit electronics, and circuit electronics installed in the appliance room. Specifically include cavity 1, power cord 2, filtering board 3, outer back plate 4, five metals fan support 5, high-voltage capacitor 6, high-voltage diode 7, bottom plate 8 in this embodiment, high voltage transformer 9, ground screw 10. The power line 2 is installed at the upper right side of the outer rear plate 4, the filter plate 3 is installed above the hardware fan support 5, the hardware fan support 5 is installed on the inner side of the outer rear plate 4, the high-voltage capacitor 6 is fixed below the hardware fan support 5, the high-voltage diode 7 is connected to the high-voltage capacitor 6, the high-voltage transformer 9 is installed on the bottom plate 8, and the bottom plate 8 is installed below the cavity 1 and fixed with the outer rear plate 4.
The hardware fan bracket 5 of the present embodiment includes two connection points, namely a first grounding connection point a and a second grounding connection point B, wherein a grounding line in the power line 2 is fixed on the first grounding connection point of the hardware fan bracket 5 by a grounding screw 10, and the hardware fan bracket 5 is fixed on the outer back plate 4, so that the power line 2 is grounded and communicated with the whole machine, specifically, a grounding position shown in fig. 2 is one; and the high-voltage transformer 9 of the high-voltage area part is communicated with the high-voltage capacitor 6 through a wire harness, one end of a high-voltage diode 7 is connected to a plug terminal of the high-voltage capacitor 6, the other end of the high-voltage diode is welded on the outer metal surface of the high-voltage capacitor 6, the high-voltage capacitor 6 is communicated with a second grounding connection point of the hardware fan support 5, and the hardware fan support 5 is fixed on the outer rear plate 4 and is also communicated with the rear plate 4, so that each electric device and the whole machine form a safe grounding loop to achieve the function of effective grounding, and the function is shown in detail as a second grounding part in fig. 3.
The utility model discloses a microwave oven which is convenient to install and strong and effective in grounding, and adopts a novel grounding mode: high voltage transformer 9 on the main circuit links to each other with high-voltage capacitor 6, and the one end welding of high-voltage diode 7 wherein links to each other with five metals fan 5 support on high-voltage capacitor 6 the other end, because the fan support changes the hardware structure into by traditional plastic part, five metals fan support 5 can link to each other with outer back plate 4 to make each electrical part and complete machine form safe ground return circuit, reach the function of effective ground connection. The grounding mode enhances the safe grounding effect of the whole electric device and reduces the occurrence of electric shock. The installation convenience is increased, the assembly time of the whole machine is shortened, and the risk of poor grounding caused by the improper fixation of the screws is reduced. Meanwhile, the use of the reduced number of parts can effectively reduce the after-sale maintenance probability of the product and reduce the maintenance cost and the cost of the whole machine.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The utility model is not limited to the above embodiments, the specific construction of which allows variations, and in any case variations, which are within the scope of the utility model as defined in the independent claims.
Claims (5)
1. A microwave oven which is easy to install and is effectively grounded comprises a shell and circuit electronics, wherein the shell forms a cavity (1) for cooking food and an electric appliance chamber for installing the circuit electronics of the microwave oven, and the circuit electronics are installed in the electric appliance chamber; the circuit electronic device comprises a power supply assembly, a high-voltage assembly and a fan assembly, and is characterized in that: the fan assembly comprises a hardware fan support (5), the hardware fan support (5) is communicated with the shell in a contact mode, and the hardware fan support (5) comprises a first grounding connection point and a second grounding connection point; the power supply assembly comprises a power line (2) and a filter plate (3), wherein a grounding wire in the power line (2) is connected to a first grounding connection point of the hardware fan support (5) and communicated with the shell through the hardware fan support (5); the high-voltage component comprises a high-voltage capacitor (6), a high-voltage diode (7) and a high-voltage transformer (9), and the high-voltage component is connected to the second grounding connection point of the hardware fan support (5) through the hardware fan support (5) and the shell.
2. The microwave oven of claim 1, wherein: the ground wire in the power wire (2) is fixed on a first grounding connection point of the hardware fan support (5) through a grounding screw (10).
3. The microwave oven of claim 2, wherein: and a high-voltage transformer (9) of the high-voltage assembly is communicated with the high-voltage capacitor (6) through a wire harness.
4. The microwave oven of claim 2, wherein: on high-voltage diode (7) one end was connected high-voltage capacitor's (6) plug terminal, one end welding was on high-voltage capacitor's (6) metal surface in addition, high-voltage capacitor (6) are linked together with the second ground connection tie point of five metals fan support (5).
5. The microwave oven of claim 2, wherein: the casing includes outer back plate (4) and bottom plate (8) of mutual fixed intercommunication, the upper right side of outer back plate (4) is installed in power cord (2), filtering board (3) are installed in five metals fan bracket (5) top, five metals fan bracket (5) are installed at outer back plate (4) inboardly, high voltage unit mount is in on bottom plate (8), high-voltage capacitor (6) are fixed in five metals fan bracket (5) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928642.3U CN215570643U (en) | 2021-04-30 | 2021-04-30 | Microwave oven convenient to installation and effective ground connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928642.3U CN215570643U (en) | 2021-04-30 | 2021-04-30 | Microwave oven convenient to installation and effective ground connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570643U true CN215570643U (en) | 2022-01-18 |
Family
ID=79858325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120928642.3U Active CN215570643U (en) | 2021-04-30 | 2021-04-30 | Microwave oven convenient to installation and effective ground connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215570643U (en) |
-
2021
- 2021-04-30 CN CN202120928642.3U patent/CN215570643U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528434 Fusha Industrial Park, Fusha Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Weili Electric Appliance Co.,Ltd. Address before: 528434 Fusha Industrial Park, Fusha Town, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN DONGLIM WEILI ELECTRICAL APPLIANCES Co.,Ltd. |
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| CP03 | Change of name, title or address |