CN210128373U - Sealing structure of circuit board and induction cooker - Google Patents
Sealing structure of circuit board and induction cooker Download PDFInfo
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- CN210128373U CN210128373U CN201920929300.6U CN201920929300U CN210128373U CN 210128373 U CN210128373 U CN 210128373U CN 201920929300 U CN201920929300 U CN 201920929300U CN 210128373 U CN210128373 U CN 210128373U
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- circuit board
- sealing
- lower cover
- upper cover
- heating element
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Abstract
The utility model provides a seal structure of circuit board, including the main part of circuit board, its characterized in that: the circuit board heating device is characterized by further comprising a sealing box, wherein the heating element of the circuit board is arranged at one side of the main body of the circuit board and led out, the sealing box comprises an upper cover and a lower cover, a containing cavity used for containing the circuit board is formed by the upper cover and the lower cover, a notch is formed in the side wall of the upper cover or the lower cover, the heating element of the circuit board extends out of the sealing box from the notch, and a sealing ring is arranged between the upper cover and the lower cover. The utility model discloses a seal box structure is sealed with the main part of circuit board and is placed in the box, makes the pest can not get into, and heating element (IGBT, bridge heap) then stretches out from the side opening department of seal box, does not influence its normal heat dissipation.
Description
Technical Field
The utility model relates to a mounting structure technical field of the circuit board of household electrical appliances, more specifically say, relate to a seal structure and electromagnetism stove of circuit board.
Background
As is well known, a circuit board (control circuit board) is an important core component of a household appliance, and if the circuit board fails, the product cannot work directly, so that the safety and reliability of the circuit board are very important. Taking a small kitchen appliance such as an induction cooker as an example, a circuit board of the small kitchen appliance is usually arranged in a product shell, a heat dissipation device is arranged beside the circuit board, and a vent is arranged on the outer wall of the shell, so that heat generated by the circuit board during working is taken away. Because the circuit board needs ventilation and heat dissipation, the circuit board of the existing small kitchen appliance such as an induction cooker is mainly designed in an open mode, namely the circuit board is designed in an open mode for the inner cavity of the shell, and a special circuit board mounting box is not provided for sealing and mounting the circuit board. However, this also brings some hidden troubles, and bugs such as cockroaches, ants and the like easily enter the inner cavity of the housing from the air inlet and outlet to damage the circuit structure of the circuit board, thereby causing the circuit board to be burnt out, on the other hand, the water condensation generated when the induction cooker is used in a high humidity environment for a long time may cause the parts to be aged and the circuit board to be burnt, and if the induction cooker is used carelessly, the water enters from the air inlet and outlet to cause the circuit board to be short-circuited. Therefore, the development of a scientific and reasonable kitchen appliance circuit board sealing structure with the functions of water resistance and insect prevention is an important way for improving the average failure-free working time of the kitchen appliance products.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an use seal structure of circuit board on kitchen appliances product, it can effectively prevent in pest, or moisture content entering circuit board, and can guarantee that circuit board work waste heat energy is taken away to overcome prior art's not enough.
Another object of the present invention is to provide an electromagnetic oven using the above circuit board sealing structure.
The technical proposal of the utility model for solving the technical problem is that: the utility model provides a seal structure of circuit board, includes the main part of circuit board, its characterized in that: the circuit board heating device is characterized by further comprising a sealing box, wherein the heating element of the circuit board is arranged at one side of the main body of the circuit board and led out, the sealing box comprises an upper cover and a lower cover, a containing cavity used for containing the circuit board is formed by the upper cover and the lower cover, a notch is formed in the side wall of the upper cover or the lower cover, the heating element of the circuit board extends out of the sealing box from the notch, and a sealing ring is arranged between the upper cover and the lower cover.
And a sealing groove for accommodating the sealing ring is formed in the opening part of the upper cover.
The inner side plate wall 31 of the sealing groove extends downwards, and when the upper cover and the lower cover are closed, the inner side plate wall of the sealing groove extends into the inner cavity of the lower cover.
The pin part 71 of the heating element is abutted against the gap of the side wall of the lower cover, and waterproof glue is coated on the surface of the pin part exposed outside the sealing box.
The utility model provides an electromagnetic oven, includes microcrystalline board, electromagnetic coil panel, circuit board, control button, fan, base, electromagnetic coil panel, circuit board, control button, fan all arrange in the inner chamber of base, microcrystalline board covers the opening of base and seals its characterized in that: the circuit board is provided with the sealing structure.
The utility model has the advantages that:
compared with the prior art, the utility model discloses a sealed box structure places the main part of circuit board in the box sealedly, makes the pest can not get into, and heating element (IGBT, bridge heap) then stretches out from the side opening department of sealed box, does not influence its normal heat dissipation. The device has good waterproof and insect-proof effects and simple structure, and effectively solves the problem that the control circuit board is burnt out due to water inflow or insect drilling. Use the utility model discloses circuit board seal structure's electromagnetism stove can avoid oil smoke, cockroach to enter into the middle needs waterproof part of electromagnetism stove, has optimized prior art's electromagnetism stove circuit board structure, its simple structure, and simple to operate has improved the sealing reliability.
Drawings
Fig. 1 is a schematic structural view of an induction cooker using the sealing structure of the circuit board of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
FIG. 3 is a sectional view taken along line B-B of FIG. 1.
Fig. 4 is a schematic disassembled view of the induction cooker shown in fig. 1.
Fig. 5 is a schematic view of the sealing structure of the circuit board of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of 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 therefore, should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected. Can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
Referring to fig. 1-5, a sealing structure of a circuit board comprises a sealing box, a main body 10 of the circuit board is placed in the sealing box, the sealing box is formed by splicing an upper cover 3 and a lower cover 5 to form a containing cavity for containing the circuit board, and a sealing ring 4 made of rubber or other sealing materials is arranged at the splicing position of the upper cover and the lower cover, so that insects and moisture cannot enter from the splicing position of a box cover. The side wall of the lower cover is provided with a notch, and the heating element 7 of the circuit board extends out of the sealing box from the notch so as to solve the problem of reasonable heat dissipation. The heat generating elements include, but are not limited to, the following electrical elements: IGBT and bridge rectifier. Therefore, the circuit layout of the circuit board is designed such that the heat generating elements are arranged to be led out on one side of the main body of the circuit board, and other elements which do not generate much heat are not limited. When the circuit board is installed, the main body of the circuit board is placed in the lower cover, the pin part 71 of the heating element is just lapped on the notch of the side wall of the lower cover, and the heating element is externally arranged outside the lower cover. The sealing groove has been seted up to the oral area lateral wall of upper cover 3, and the inboard siding wall 31 downwardly extending of sealing groove, when upper and lower lid closed the lid, the inboard siding wall of sealing groove stretched into the lower cover inner chamber, and sealing washer 4 then supports and leans on the lateral wall platform of lower cover, makes and forms sealed cooperation between the upper and lower lid. The openings of the upper cover and the lower cover are rectangular, the sealing ring is also in a matched rectangular shape, the circuit board is placed firstly during assembly, then the upper cover is aligned to the opening of the lower cover and pressed together, the diameter of the sealing ring in the sealing groove of the upper cover is larger than the assembly gap of the upper cover and the lower cover, thus forming interference fit, and the sealing ring is pressed on the pin part 71 of the heating element at the notch of the lower cover. The upper and lower covers are locked by screws or other fasteners. Waterproof glue is coated on the surface of the pin part exposed outside the sealing box, so that the exposed part of the circuit board needing to be waterproof is completely wrapped in the waterproof sealing layer.
The heat generating element is provided with heat radiating fins 6 made of aluminum.
Set up radiator fan near heating element and make the produced heat of heating element work can distribute away to guarantee that heating element can last normal work. Or, the heating element and the radiating fins on the heating element are arranged in the radiating air duct.
As a variant, the side openings can also be arranged on the side walls of the upper cover.
As shown in fig. 4-5, the electromagnetic oven includes a microchip board 1, an electromagnetic coil panel 2, a circuit board, a control key 8 (touch key), a fan 9, and a base, wherein the electromagnetic coil panel, the circuit board, the control key, and the fan are all disposed in an inner cavity of the base, and the opening of the base is covered by the microchip board. The front part of the inner cavity of the base is a control key area, the control key area is provided with an independent interval partition, a fan is placed adjacent to the key area, the bottom of the base is provided with an air inlet grille 11 corresponding to a fan installation area, and air outlet grilles 12 are arranged on the side walls of the middle part and the rear part of the base, so that a bottom air inlet and three-side air outlet circulation air path structure is formed in the base. The sealing box for placing the circuit board is arranged at the rear part of the base, the air outlet grids of the base are arranged at the left, right and back parts of the sealing box, and the electromagnetic coil panel is placed on the top of the upper cover of the sealing box. The IGBT and the rectifier bridge stack of the circuit board extend out of the sealing box, the radiating fins are arranged above the sealing box and are positioned below the electromagnetic coil panel, air subjected to forced convection passes through the gaps between the adjacent fins, and heat is taken away from the air outlet grille at the rear part. The sealing box is fixed on the base through a fastener or a clamping mode or an adhesive mode.
As an improvement, the lower cover of the sealing box can be integrated with the base.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that can be made without inventive step are intended to be embraced therein.
Claims (5)
1. The utility model provides a seal structure of circuit board, includes the main part of circuit board, its characterized in that: the circuit board heating device is characterized by further comprising a sealing box, wherein the heating element of the circuit board is arranged at one side of the main body of the circuit board and led out, the sealing box comprises an upper cover and a lower cover, a containing cavity used for containing the circuit board is formed by the upper cover and the lower cover, a notch is formed in the side wall of the upper cover or the lower cover, the heating element of the circuit board extends out of the sealing box from the notch, and a sealing ring is arranged between the upper cover and the lower cover.
2. A sealing structure of a wiring board according to claim 1, characterized in that: and a sealing groove for accommodating the sealing ring is formed in the opening part of the upper cover.
3. A sealing structure of a wiring board according to claim 2, wherein: the inner side plate wall 31 of the sealing groove extends downwards, and when the upper cover and the lower cover are closed, the inner side plate wall of the sealing groove extends into the inner cavity of the lower cover.
4. A sealing structure of a wiring board according to claim 3, wherein: the pin part 71 of the heating element is abutted against the gap of the side wall of the lower cover, and waterproof glue is coated on the surface of the pin part exposed outside the sealing box.
5. The utility model provides an electromagnetic oven, includes microcrystalline board, electromagnetic coil panel, circuit board, control button, fan, base, electromagnetic coil panel, circuit board, control button, fan all arrange in the inner chamber of base, microcrystalline board covers the opening of base and seals its characterized in that: the circuit board is provided with the sealing structure according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929300.6U CN210128373U (en) | 2019-06-19 | 2019-06-19 | Sealing structure of circuit board and induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929300.6U CN210128373U (en) | 2019-06-19 | 2019-06-19 | Sealing structure of circuit board and induction cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128373U true CN210128373U (en) | 2020-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920929300.6U Active CN210128373U (en) | 2019-06-19 | 2019-06-19 | Sealing structure of circuit board and induction cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498162A (en) * | 2022-02-25 | 2022-05-13 | 深圳市灏胜电子科技有限公司 | Sealed circuit board of waterproof connector and manufacturing method thereof |
-
2019
- 2019-06-19 CN CN201920929300.6U patent/CN210128373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498162A (en) * | 2022-02-25 | 2022-05-13 | 深圳市灏胜电子科技有限公司 | Sealed circuit board of waterproof connector and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211123 Address after: 537618 No. 005, qimutian team, Wangmao village, Wangmao Town, Bobai County, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Lan Wei Address before: 528300 one of the first floor of building B, No. 2, Changhua Road, Ronggui Haiwei neighborhood committee, Shunde District, Foshan City, Guangdong Province Patentee before: Lan Chengyong |
|
| TR01 | Transfer of patent right |