CN100455893C - Earthing structure for control panel of microwave oven - Google Patents
Earthing structure for control panel of microwave oven Download PDFInfo
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- CN100455893C CN100455893C CNB031304885A CN03130488A CN100455893C CN 100455893 C CN100455893 C CN 100455893C CN B031304885 A CNB031304885 A CN B031304885A CN 03130488 A CN03130488 A CN 03130488A CN 100455893 C CN100455893 C CN 100455893C
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- grounding bracket
- outer cover
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Abstract
The present invention relates to a grounding structure for a control panel of a microwave oven. A control panel of the microwave oven is arranged on a control flange of the upper end of a front panel of the microwave oven, a control outer cover is attached to the front side of a control dial of the front appearance of the control panel, and a ground supporting frame is arranged in the control panel. A head formed at one end of the grounding supporting frame is fixed to an installing groove formed between the inner side surface of the control outer cover and the front side of the control dial, so the outer end of the head of the grounding supporting frame is in contact with the inner side surface of the control outer cover. A flange part of the grounding supporting frame and a control flange are simultaneously connected with a connection sleeve of the control dial through connecting screws, so the present invention is formed by contacting the flange part of the grounding supporting frame with the front side of the control flange. Because the grounding structure of the control panel of the present invention is not exposed outside, the appearance of the microwave oven is not influenced, and in addition, materials of the grounding supporting frame do not adopt expensive stainless steel. Thus, the manufacturing cost of the microwave oven is reduced, and the cost is lowered.
Description
Technical field
The present invention relates to a kind of control panel of micro-wave oven, relate to a kind of or rather by grounding bracket being set in control panel inside, control panel is connected with the micro-wave oven body with grounding bracket with the conduction connected mode, makes its ground structure not be exposed to outside earthing structure of control panel in microwave oven.
Background technology
Micro-wave oven is to utilize microwave or the heater cooking household electrical appliances as thermal source.Front one side of micro-wave oven is provided with control panel.The control panel function is the various operation signals of input control micro-wave oven work, and the various working conditions of micro-wave oven are externally showed.
Fig. 1 is the structural upright schematic diagram of general common microwave stove.As shown in the figure, the cavity of microwave oven assembly 10 inner cooking rooms 11 that utilize microwave or thermal source heat food that form; One side of cavity assembling body 10 has electric control chamber 12, is provided with magnetron (MAGNETRON), high-tension transformer various electronic units such as (TRANSFORMER) in the electric control chamber.
Side at the front panel 17 of the front portion of cavity assembling body 10 is provided with cooking room door 13.Described cooking room door 13 can be to the above-mentioned cooking room 11 of micro-wave oven front side rotary opening closing.
The bottom surface of above-mentioned cavity assembling body 10 is fixed with the chassis (baseplate) 15 that forms micro-wave oven bottom surface outward appearance.The top of cavity assembling body 10 and both sides are coated with the external box of microvave (out case) 18 that forms micro-wave oven top and both sides outward appearance.
One side of above-mentioned cooking room door 13 is that above-mentioned front panel 17 prolongs formation control flange (control flange) 19 to the side.Described control flange 19 fronts are provided with control panel 20.The control panel function is the various operation signals of input control micro-wave oven work, and the various working conditions of micro-wave oven are externally showed.
Fig. 2 is the schematic perspective view of the ground structure of prior art control panel of microwave oven.As shown in the figure, the control panel 20 of micro-wave oven is arranged on front one side of micro-wave oven.Front portion at the control dial plate (control panel) 21 of described control panel 20 front outward appearances is equipped with control outer cover (control cover) 23, and control panel 20 inside are provided with printed circuit-board assembly (PCB assembly) (not shown) that various electric control elements are installed.
In order to gain in strength and to prevent corrosion, the material of control outer cover 23 generally adopts stainless steel (STS, stainless steel), and still, control outer cover 23 in use often produces static.
The material of control dial plate 21 is generally plastics insulating materials such as (plastic).So the static that control outer cover 23 produces can not conduct to control flange 19 by control dial plate 21, can only be transmitted on the control panel 20 inner printed circuit-board assemblies that are provided with.
Control outer cover 23 is transmitted to static on the printed circuit-board assembly can damage various electronic components on the printed circuit-board assembly.In order to prevent this damage, control outer cover 23 and the 15 1 side joint ground, chassis that form the micro-wave oven bottom surface.
For the mode of control panel 20 with chassis 15 usefulness conduction is connected, control outer cover 23 bottoms form the mounting flange 25 of bending.Described mounting flange 25 is fixed on a side of bottom disk in microwave oven 15, and mounting flange 25 rear sides prolong backward and form grounding parts 27.
But there are the following problems to have the ground structure of control panel of prior art micro-wave oven of said structure.
In the ground structure of control panel in the prior art, the grounding parts 27 that control outer cover 23 lower ends prolong backward is connected on the chassis 15 by the mode of attachment screw 29 with conduction.So as shown in Figure 1, control panel 20 is when micro-wave oven front one side is vertically disposed, and the ground structure of control panel is not exposed to the outside.
But when control panel 20 was arranged on micro-wave oven top along horizontal direction, grounding parts 27 was located in micro-wave oven head or two sides.So the ground structure of control panel just is exposed to the outside, influence the outward appearance of micro-wave oven.
In addition, grounding parts 27 prolongs formation backward at mounting flange 25 rear sides of control outer cover 23, so its material is the stainless steel material identical with control outer cover 23.Stainless steel material is more expensive than common metal material price, so the ground structure of the control panel of prior art makes the also corresponding raising of manufacturing cost of micro-wave oven.
This shows that the ground structure of above-mentioned existing control panel of microwave oven still has many defectives, and demands urgently being improved.
Because the defective that the ground structure of existing control panel of microwave oven exists, the design people is based on being engaged in this type of product design manufacturing for many years, amassing has abundant practical experience and professional knowledge, actively studied innovation, ground structure in the hope of the control panel of the micro-wave oven of founding a kind of new improvement molding structure, can improve the general molding structure of the ground structure of existing conventional control panel of microwave oven on the market, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective of the ground structure existence of existing control panel of microwave oven, and provide a kind of ground structure of control panel of micro-wave oven of new improvement structure, in control panel inside grounding bracket is set, make its control panel of microwave oven ground structure not be exposed to the micro-wave oven outside, and reduce the manufacturing cost of micro-wave oven.
The present invention solves its technical problem underlying and realizes by the following technical solutions.
A kind of ground structure of control panel of micro-wave oven includes control flange, control dial plate, control outer cover, grounding bracket, wherein:
Control flange is that metal material is made, and is arranged on the upper end of micro-wave oven front panel;
The control dial plate is that insulating material is made, and is fixed on the front side of control flange;
The control outer cover is that metal material is made, attached to the front side of control dial plate; It is characterized in that:
Described grounding bracket is that metal material is made, the flange portion that it comprises body, is formed on several heads of this body one end and is formed on this body other end;
Described body forms straight quadrangle along fore-and-aft direction;
Described several heads are bent to form to the left and right sides from an end of described body;
Described flange portion from the other end of described body to the curved one-tenth of a lateral bending;
Described grounding bracket is arranged on control panel inside;
One end of the head of described grounding bracket contacts with the medial surface of control outer cover, and an end of the flange portion of described grounding bracket contacts with the leading flank of control flange, thereby makes the control outer cover be connected with control flange by the mode of grounding bracket with conduction.
The ground structure of the control panel of aforesaid micro-wave oven, the leading flank of wherein controlling dial plate is formed with mounting groove, form certain space between the medial surface of the bottom surface of mounting groove and control outer cover, a plurality of heads of described grounding bracket are fixed in this space, make a plurality of heads the outside closely contact at the medial surface of control outer cover; The medial surface of described control dial plate rearward prolongs the formation joint sleeve; The flange portion of described grounding bracket has a connecting hole at least, correspondingly on described control flange, also be formed with connecting hole, screw is by the connecting hole on the control flange, connect the connecting hole on the described flange portion again, described flange portion is fixedly connected on the described joint sleeve, thereby makes the flange portion of described grounding bracket contact with the leading flank of control flange.
The ground structure of the control panel of aforesaid micro-wave oven, wherein the outboard end of the head of grounding bracket is towards the prolongation of control outer cover medial surface inclination.
The ground structure of the control panel of aforesaid micro-wave oven, wherein mounting groove comprises installation otch, fixed projection, the body of described grounding bracket is inserted on this installation otch, described fixed projection is after the body of described grounding bracket inserts the installation otch, the head of fixing described grounding bracket, described fixed projection is provided with one at least.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention is provided with grounding bracket owing to adopt technique scheme in control panel inside, with the conduction connected mode, by grounding bracket control panel is connected with the micro-wave oven body, makes its ground structure not be exposed to the outside, make the outward appearance of micro-wave oven unaffected.The material of grounding bracket needn't adopt more expensive stainless steel in addition, thereby can reduce the manufacturing expense of micro-wave oven, reduces cost.
The present invention is on the practicality and cost benefit of structural design, use, really it is required to meet industry development fully, and disclosed structure is unprecedented innovative design, it does not see any publication, do not see more that before application that identical architectural feature is arranged is known, formerly public, and also not seeing on the market has similar products like, and has novelty really.
Structure of the present invention really has more technological progress than the ground structure of existing control panel of microwave oven, and its particular structure feature reaches the ground structure that more can also be far from existing control panel of microwave oven and can compare, the ground structure of more existing control panel of microwave oven has more technical progress, and have the multinomial effect of enhancement, and creative really.
Designer of the present invention studies this series products experience of existing ten several years, quite understand for existing problem of the ground structure of existing control panel of microwave oven and defective, and the present invention founds according to above-mentioned Study of Defects exploitation, it can reach its intended purposes and effect really, not only on the kenel of space, really belong to innovation, and the true accessory of the ground structure of more existing control panel of microwave oven has suitable enhancement effect, and existing known product has more technological progress and practicality, and produced handy and practical good effect, and have practicality really.
In sum, the present invention really belongs to innovation on the kenel of space, and has the multinomial effect of enhancement than existing product, and simple in structure, is suitable for practicality, has the extensive value of industry.It is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solution of the present invention feature, for making the professional and technical personnel can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the structural upright schematic diagram of general common microwave stove.
Fig. 2 is the schematic perspective view of the ground structure of prior art control panel of microwave oven.
Fig. 3 is the schematic perspective view of ground structure embodiment of the control panel of the bright micro-wave oven of this law.
Fig. 4 is the cutaway view of embodiment shown in Figure 3.
Fig. 5 is the schematic perspective view of the grounding bracket of embodiment shown in Figure 3.
The symbol description * * * of critical piece among the * * figure
37. front panel 39. control flanges (control flange)
39a. connecting hole 40. control panels (control panel)
41. control dial plate (control panel) 41a. joint sleeve (boss)
42. mounting groove 42a. otch (slit)
42b. fixed projection 43. control outer covers (control cover)
45. grounding bracket (bracket) 46. bodies
47. head (head) 48. flanges (flange)
48a. connecting hole 49. attachment screws
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also Fig. 3, Fig. 4, shown in Figure 5, the ground structure of the control panel of micro-wave oven of the present invention has control flange 39 at front panel 37 upsides of micro-wave oven.Described control flange 39 is made for metal material, its installed in front control dial plate 41.The function of control dial plate 41 is various operation signals of input control micro-wave oven work, and the various situations of micro-wave oven work are externally showed.The front side of control flange 39 forms a connecting hole 39a at least.
The insulator that control dial plate 41 is made for plastic or other material, its inboard phase rear side prolong and form at least one joint sleeve 41a.Control dial plate 41 front sides are attached with control outer cover 43, and front one side of control dial plate 41 forms mounting groove 42.
Form certain space between the bottom surface of mounting groove 42 and control outer cover 43 medial surfaces.Above-mentioned mounting groove 42 comprises, otch 42a, fixed projection 42b are installed.The grounding bracket 45 that hereinafter will illustrate is inserted in to be installed on the otch 42a; Dead earth carriage 45 needs a fixed projection 42b at least.
In order to gain in strength and to prevent corrosion, the material of control outer cover 43 generally adopts stainless steel, and still, control outer cover 23 in use often produces static.
Material attached to the control dial plate 41 on the control outer cover 43 is generally insulating materials such as plastics.So the static that control outer cover 43 produces can not conduct to control flange 39 by control dial plate 41, can only be transmitted on the control panel 40 inner printed circuit-board assemblies that are provided with.
Control outer cover 43 is transmitted to static on the printed circuit-board assembly can damage various electronic components on the printed circuit-board assembly.In order to prevent this damage, an end of the fixed in space grounding bracket 45 that control outer cover 43 medial surfaces and above-mentioned mounting groove 42 form.
Grounding bracket 45 comprises: along the straight dimetric body 46 of fore-and-aft direction formation; At an end of described body 46 several heads 47 to the both sides bending; To a lateral bending song, and has the flange portion 48 of a connecting hole at least at the other end of body 46.
The body 46 of grounding bracket is long and narrow straight quadrangle, the length of the joint sleeve 41a that its length correspondence hereinafter will illustrate.And at an end of body 46, head 47 is to the both sides bending.As shown in the figure, form 3 heads 47 in the both sides of body 46.Body 46 inserts on the installation otch 42a of mounting groove 42.
After body 46 inserted otch 42a is installed, its head 47 was promptly controlled between the front side and control outer cover 43 medial surfaces of dial plate 41 in the front side of above-mentioned mounting groove 42.And several head 47 fixed projection 42b fixing heads 47 in mounting groove 42 formation.
The outboard end of head 47 is towards control outer cover 43 medial surface inclination certain angles.After making that body 46 inserts installation otch 42a, the outboard end of head 47 can touch the medial surface of control outer cover 43.
The head 47 that connects carriage 45 contacts with the medial surface of control outer cover 43, and the flange portion 48 that connects carriage 45 contacts with control flange 39, thereby makes control panel 40 be connected with control flange 39 in the mode of conduction.
Below, explanation is provided with the preferred embodiment according to the control panel ground structure of micro-wave oven of the present invention with reference to Fig. 3 to Fig. 5.
At first, grounding bracket 45 is installed on the mounting groove 42 of control dial plate 41.At this moment, grounding bracket 45 bodies 46 are inserted in to be installed on the otch 42a, is positioned at the front side of mounting groove 42 from the head 47 of an end bending of body 46.In addition, fix the head 47 of grounding bracket 45 with the fixed projection 42b that forms on the mounting groove 42.
Then, the front side of control outer cover 43 attached to control dial plate 41.Be formed slopely towards control outer cover 43 because be positioned at the outboard end of head 47 of the grounding bracket 45 of mounting groove 42 front sides, so the medial surface of control outer cover 43 contacts with the outboard end of the head 47 of grounding bracket 45.
The control dial plate 41 that is attached with control outer cover 43 is installed on the control flange 39.The attachment screw 49 that connects control flange 39 connecting hole 39a is connected on the joint sleeve 41a of control dial plate 41, and then, make control dial plate 41 be installed in control flange 39 front sides.
At this moment, connect the connecting hole 48a that control flange 39 connecting hole 39a attachment screws 49 are applied in flange portion 48 formation of grounding bracket 45.Thereby make the flange portion 48 of grounding bracket 45 contact with control flange 39 front sides.
The head 47 of grounding bracket 45 contacts with control outer cover 43 and control flange 39 respectively with flange portion 48 and makes that control outer cover 43 can ground connection.In addition, grounding bracket 45 so be not exposed to the outside, makes the outward appearance of micro-wave oven unaffected because be arranged on the inside of control dial plate 41.The material of grounding bracket 45 does not adopt expensive stainless steel yet, has reduced manufacturing expense.
Basic technological thought of the present invention is: control panel of microwave oven is connected the grounding bracket of micro-wave oven body in the mode of conduction, and the one end contacts with the control outer cover, and the other end contacts with control flange, and is arranged on control panel inside.
Among the embodiment as shown in the figure, 3 head part are arranged not towards the both sides bending of the body of grounding bracket.But the head construction of grounding bracket is not limited thereto.For example, head is to the body one lateral bending song of grounding bracket, and its flange portion also can to the rightabout bending of head.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1, a kind of ground structure of control panel of micro-wave oven includes control flange, control dial plate, control outer cover, grounding bracket, wherein:
Control flange is that metal material is made, and is arranged on the upper end of micro-wave oven front panel;
The control dial plate is that insulating material is made, and is fixed on the front side of control flange;
The control outer cover is that metal material is made, attached to the front side of control dial plate; It is characterized in that:
Described grounding bracket (45) is made for metal material, the flange portion (48) that it comprises body (46), is formed on several heads (47) of this body one end and is formed on this body other end;
Described body (46) forms straight quadrangle along fore-and-aft direction;
Described several heads (47) are bent to form to the left and right sides from an end of described body (46);
Described flange portion (48) from the other end of described body (46) to the curved one-tenth of a lateral bending;
Described grounding bracket (45) is arranged on control panel inside;
One end of the head of described grounding bracket (47) contacts with the medial surface of control outer cover (43), one end of the flange portion (48) of described grounding bracket (45) contacts with the leading flank of control flange (39), thereby makes the control outer cover be connected with control flange by the mode of grounding bracket with conduction.
2, the ground structure of the control panel of micro-wave oven according to claim 1, it is characterized in that: the leading flank of described control dial plate (41) is formed with mounting groove (42), form certain space between the medial surface of the bottom surface of mounting groove and control outer cover, a plurality of heads (47) of described grounding bracket (45) are fixed in this space, make a plurality of heads (47) the outside closely contact at the medial surface of control outer cover (43); The medial surface of described control dial plate rearward prolongs and forms joint sleeve (41a); The flange portion (48) of described grounding bracket (45) has a connecting hole (48a) at least, correspondingly on described control flange (39), also be formed with connecting hole (39a), screw is by the connecting hole (39a) on the control flange (39), connect the connecting hole (48a) on the described flange portion (48) again, described flange portion (48) is fixedly connected on the described joint sleeve (41a), thereby makes the flange portion of described grounding bracket contact with the leading flank of control flange.
3, the ground structure of the control panel of micro-wave oven according to claim 1 and 2 is characterized in that: the prolongation that the outboard end of the head (47) of described grounding bracket (45) tilts towards control outer cover (43) medial surface.
4, the ground structure of the control panel of micro-wave oven according to claim 2, it is characterized in that: described mounting groove (42) comprises installs otch (42a), fixed projection (42b), the body (46) of described grounding bracket (45) is inserted on this installation otch (42a), described fixed projection is after the body (46) of described grounding bracket (45) inserts installation otch (42a), the head (47) of fixing described grounding bracket (45), described fixed projection (42b) is provided with one at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031304885A CN100455893C (en) | 2003-07-29 | 2003-07-29 | Earthing structure for control panel of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031304885A CN100455893C (en) | 2003-07-29 | 2003-07-29 | Earthing structure for control panel of microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576710A CN1576710A (en) | 2005-02-09 |
| CN100455893C true CN100455893C (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031304885A Expired - Fee Related CN100455893C (en) | 2003-07-29 | 2003-07-29 | Earthing structure for control panel of microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455893C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403456B (en) * | 2010-12-31 | 2016-08-10 | 阿塞里克股份有限公司 | Carry the baking box of Supply Security |
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| DE8213627U1 (en) * | 1982-05-11 | 1982-08-19 | Siemens AG, 1000 Berlin und 8000 München | Pluggable circuit board for electrical communications engineering |
| JPS58124122A (en) * | 1982-01-19 | 1983-07-23 | Matsushita Electric Ind Co Ltd | Heating cooker |
| JPS6035423A (en) * | 1984-06-07 | 1985-02-23 | 松下電器産業株式会社 | High frequency heater |
| CN1172230A (en) * | 1996-07-29 | 1998-02-04 | 三星电子株式会社 | Microwave oven |
| KR100200798B1 (en) * | 1997-03-06 | 1999-06-15 | 윤종용 | Microwave oven |
| KR20010018762A (en) * | 1999-08-21 | 2001-03-15 | 구자홍 | Grounding structure for microwave oven |
| KR20010055714A (en) * | 1999-12-11 | 2001-07-04 | 구자홍 | earth-structure of controller for microwave oven |
| JP2001230066A (en) * | 2000-02-16 | 2001-08-24 | Sanyo Electric Co Ltd | Safety device of electric apparatus |
| JP2002250520A (en) * | 2001-02-26 | 2002-09-06 | Matsushita Electric Ind Co Ltd | High frequency heater |
-
2003
- 2003-07-29 CN CNB031304885A patent/CN100455893C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124122A (en) * | 1982-01-19 | 1983-07-23 | Matsushita Electric Ind Co Ltd | Heating cooker |
| DE8213627U1 (en) * | 1982-05-11 | 1982-08-19 | Siemens AG, 1000 Berlin und 8000 München | Pluggable circuit board for electrical communications engineering |
| JPS6035423A (en) * | 1984-06-07 | 1985-02-23 | 松下電器産業株式会社 | High frequency heater |
| CN1172230A (en) * | 1996-07-29 | 1998-02-04 | 三星电子株式会社 | Microwave oven |
| KR100200798B1 (en) * | 1997-03-06 | 1999-06-15 | 윤종용 | Microwave oven |
| KR20010018762A (en) * | 1999-08-21 | 2001-03-15 | 구자홍 | Grounding structure for microwave oven |
| KR20010055714A (en) * | 1999-12-11 | 2001-07-04 | 구자홍 | earth-structure of controller for microwave oven |
| JP2001230066A (en) * | 2000-02-16 | 2001-08-24 | Sanyo Electric Co Ltd | Safety device of electric apparatus |
| JP2002250520A (en) * | 2001-02-26 | 2002-09-06 | Matsushita Electric Ind Co Ltd | High frequency heater |
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| Publication number | Publication date |
|---|---|
| CN1576710A (en) | 2005-02-09 |
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Granted publication date: 20090128 Termination date: 20110729 |