CN1240984C - Revolving switch and door switch for refrigerator - Google Patents
Revolving switch and door switch for refrigerator Download PDFInfo
- Publication number
- CN1240984C CN1240984C CN 03154382 CN03154382A CN1240984C CN 1240984 C CN1240984 C CN 1240984C CN 03154382 CN03154382 CN 03154382 CN 03154382 A CN03154382 A CN 03154382A CN 1240984 C CN1240984 C CN 1240984C
- Authority
- CN
- China
- Prior art keywords
- switch
- housing
- rotating
- mentioned
- lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
Abstract
The rotation switch making a switching operation based on a rotational operation force of a rotation lever held by a housing and rotated for operation incorporates a tight-sealed switch making a switching operation of a contact part inside a tightly sealed case blocked from the outside air based on the rotational operation force of the rotation lever.
Description
Technical field
The present invention relates to for example to be used for the rotating switch of the door switch of refrigerator, relate to guarantee to reduce the rotating switch and the use in refrigerator door switch of number of spare parts and miniaturization and security in more detail.
Background technology
Usually, be assembled in the vicinity that the interior door switch of home electric refrigerator is arranged on the door in the refrigerator, it has connection when opening and closing the door of refrigerator, closes the bulb in this refrigerator that throws light on, and connects, and cuts off the switching function of cooling motor.
Yet when making refrigerator, use refrigerant to replace the freon of a reason that causes greenhouse effects of the earth in recent years with identical extremely other kinds of cold function.For example, the refrigerator that adopts low-cost hydrocarbon to make refrigerant is sold.
; because this hydrocarbon refrigerant is flammable; so just in case hydrocarbon refrigerant this refrigerant when the refrigerator internal leakage can be full of in the refrigerator; when shutter door is operated; the switch of switching manipulation in the refrigerator, the electric arc that produce this moment between the contact of switch has the danger of igniting the hydrocarbon refrigerant and blasting.
For address this is that employing do not make when the switching manipulation electric arc spot take out door switching signal the microcomputer control mode or replace method such as door switch with contactless Hall integrated circuit.
But, when adopting this structure that electric arc do not take place, need control component parts such as the circuit substrate of usefulness and relay, this can improve the cost of refrigerator.In addition, the scheme (for example, with reference to patent documentation 1) of contact portion action that knee-action with plunger makes the switch of high sealingization has also been proposed, yet, because must strengthen the stroke up and down of plunger, thus the size of switch integral body can increase, produced can not miniaturization problem.
[patent documentation 1]
German patent application discloses DE 4309132 A1 specifications.
Summary of the invention
The present invention is conceived to this problem and makes, so that following rotating switch and use in refrigerator door switch to be provided is purpose, that is: by being installed in the housing, the box swich body of contact portion and external isolation undertaken high sealingization, become and prevent the good switch of security that explodes, and owing to make the rotating lever type, thereby can form the switch of miniaturization structure.
Rotating switch of the present invention is maintained in the housing, the rotating operation power of the rotating lever by being rotated operation is carried out switching manipulation, wherein, the box swich body is installed in above-mentioned housing, sealing type switch body by the rotating operation power of above-mentioned rotating lever to the seal box of external isolation in contact portion carry out switching manipulation.
At this, rotating switch is to rotate along with the opening and closing operations of door, is applicable to by this rotating operation power and connects the door switch of the refrigerator of cut-out etc.
Above-mentioned housing portion within it is assembled into the parts that constitute switch, is made of the synthetic resin material of suitable mould molding and insulation.
Above-mentioned rotating lever is to be used in the axle support lever of freely rotating in the housing to constitute, driven by the elastic force of back-moving spring, the pressed sheets of this lever outer end is given prominence to outside housing, be retained as the state that can be subjected to pressed by external force, when being subjected to pressed by external force, just rotate and enter enclosure interior, thereby rotate and two-way contact portion, similarly the synthetic resin material by suitable mould molding and insulation constitutes.
Above-mentioned box swich body is that the fixed contact sheet of electric conductivity and the contact component of travelling contact sheet are installed in the small-sized sealing casing that can be housed in the housing, and the switch of the closed type of the structure of formation energy two-way contact portion.
According to the present invention, because the box swich body is installed in housing, formation so the contact portion of sealing type switch body is positioned at seal box, is in the complete sealing state with external isolation with the such structure of driver of rotating lever operation sealing type switch body.Therefore, if when carrying out switching manipulation, also can not give outside with any influence even be in the contact portion generation electric arc of complete sealing state.
Its result, for the just not restriction of sealed of housing, therefore, it is easy that the making of rotating switch becomes, for example can be formed in the joint portion with the lid of closure casing peristome, the operating portion of switch etc. locates not use the rotating switch of rubber sleeve or pad class seal member.Thereby energy component parts number and the few simple switch of number, can realize cost degradation.
Therefore; when rotating switch for example is used to adopt the door of refrigerator switch of flammable refrigerant; even flammable refrigerant is in the refrigerator internal leakage; because the contact portion of switch is sealed fully; so when shutter door; even produce the electric arc flammable refrigerant that also can not ignite in contact portion, therefore can be as having the safe protection switch of good flame resistance and using.
As the rotating switch of another aspect of the present invention, it has: the housing of the spill of a side opening, seal the lid of the opening surface of above-mentioned housing; The box swich body, it is installed in the above-mentioned housing, and the contact portion with external isolation is arranged in seal box, in an end of sealing case driver is arranged, and has in the other end to connect the terminal that distribution is used; Rotating lever, its outside at above-mentioned housing has freely to rotate to be supported by axle, bear pressed sheets, have the operation of cam that when above-mentioned pressed sheets is subjected to external force, rotates and push the driver of above-mentioned box swich body in inside from the external force of housing foreign side; Back-moving spring, the pressed sheets that it drives above-mentioned rotating lever makes it give prominence to depressed position in housing foreign side.
Here housing has and allows the concavity blank part that is assembled into the switch component parts, in the blank part of this concave shape, only be assembled into 3 parts of rotating lever and back-moving spring and box swich body just can, the blank part opening surface that covers housing with flat lid just can easily be assembled afterwards.
When such rotating switch for example is used as the door switch of refrigerator, because contact portion is sealed in the seal box of box swich body fully, so the contact portion and the outside that are installed in the sealing type switch body isolate fully, have high leakproofness, can use safely.
Have again, because when rotating switch is subjected to operating physical force from the outside, when rotating lever rotates, the operation of cam of this lever is pushed driver and is carried out switching manipulation in rotation process, so when this rotating lever rotates, the external force that acts on the straight line is switched on the long contact length that acts on the circular arc direction by operation of cam, and carry out the transmission of pressure, therefore can obtain long operational stroke.Therefore shortened the length of switching manipulation direction, and can make the switch miniaturization, had again, because obtained sufficient operational stroke, even make the switch miniaturization also can obtain stable switch performance.
Because prolonged operational stroke, Xie Chu the stroke deficiency, therefore can connect reliably, disconnect, also obtain the high operation performance of as switch of reliability simultaneously.
Description of drawings
Fig. 1 is the stereoscopic figure of rotating switch,
Fig. 2 is the open cube display of rotating switch,
Fig. 3 is the longitdinal cross-section diagram of rotating switch,
Fig. 4 is the amplification stereogram of expression rotating lever,
Fig. 5 is the stereoscopic figure of box swich body,
Fig. 6 is the longitdinal cross-section diagram of mode of operation of the rotating lever of expression rotating switch,
Fig. 7 is the stereogram of major part of mode of operation of the rotating lever of expression rotating switch.
The specific embodiment
According to the following drawings explanation one embodiment of the present of invention.
Accompanying drawing is represented the rotating switch as the door switch of refrigerator, Fig. 1, Fig. 2, assemble case 12 integratedly among Fig. 3, lid 13, rotating lever 14, back-moving spring 15 and box swich body 16 and constitute this rotating switch 11.
Above-mentioned housing 12 has the blank part 12a of concavity, and its inside is assembled into above-mentioned component parts 14,15,16, in this blank part 12a, be assembled into parts after, mounting cover 13 integratedly, its opening surface that seals this blank part 12a forms the plane.
Fig. 4 represents rotating lever 14, this rotating lever 14 is a fan shape, extend along this fan-shaped inclined upper with being inclined upwardly and lever to be set to depress sheet 14a, the prominent back shaft 14b that establishes in the two sides in the bight, fan-shaped center of bottom, (province's sketch map) supports back shaft 14b on one side on the shaft supporting part that forms on the medial surface of lid 13, on the medial surface of housing 12 opening is set and supports the back shaft 14b of another side, this rotating lever 14 is divided into these shaft supporting parts and rotates basic point and rotate and be mounted freely on the housing 12.
With rotating lever 14 from the top be inserted in housing 12 above the rectangular lever installing port 12c that leaves and installing, when it is subjected to the elastic force of back-moving spring 15 described later, press the state that sheet 14a is in outstanding external force depressed position up as the lever of the external force pressed sheets of rotating lever 14, when this when lever of elongation is pressed sheet 14a and is subjected to the external force of the horizontal direction above housing upward at a slant just the back shaft 14b with both sides be that fulcrum rotates, this lever 14 will enter in the lever installing port 12c.
Have, give prominence to that in the bottom of this rotating lever 14 semicircular operation of cam 14c being set, this operation of cam 14c pushes the driver 16a of box swich body 16 and carries out switching manipulation.
At this moment, as following ground setting operation cam 14c: it serves as to rotate outstandingly on the summary concentric circles of basic point to form semicirclely at the back shaft 14b with lever 14, this circular arc face length is set is the contact corresponding surface, and the limit is being rotated the limit and pushed driver 16a reposefully.For this reason, the wearing and tearing between the face that is in contact with one another reduce, and can obtain slick and sly action when carrying out switching manipulation.
Especially, when the door of corresponding refrigerator is installed rotating switch 11, will be as carry out switching manipulation followingly: the operating physical force (external force) of setting the switching that is accompanied by door be applied to the slightly parallel direction in the outside of housing on, give prominence to and press sheet 14a at the lever of the rotating lever 14 of housing outside and be subjected to rotating along the external force of the horizontal direction of housing outside, lever 14 is that rotating fulcrum rotates and enters in the housing with an end.
At this moment, because the operation of cam 14c of rotating lever 14 this lever 14 when rotating pushes driver 16a and console switch, so when lever rotates, by operation of cam 14c the external force that acts on the straight line is switched on the long contact length that acts on the circular arc direction, and carry out the transmission of pressure, therefore, can obtain long operational stroke.
Because prolonged operational stroke in this wise,, can make the switch miniaturization so shortened the length of switching manipulation direction.Have again, because can prolong operational stroke fully, so, also can obtain stable switch performance even be designed to switchette.For example, can in the scope of operational stroke, set the switching scope of contact, have again, remove the stroke deficiency and can connect reliably, cut off, and also can form the structure of allowing superfluous stroke etc., thereby obtain the operation performance of as switch of high reliability.
Have, below rotating lever 14, groove 14d is cut in forming respectively nearby of the back shaft 14b of both sides again, 14e, and it makes axial stretching become possibility, has improved the installation of back shaft 14b.Have, form the spring extension in the bottom of this lever 14 and close groove 14f, the end that it blocks back-moving spring 15 described later bears elastic force upwards.
Above-mentioned back-moving spring 15 forms spirality, this back-moving spring 15 is inserted the logical enclosure interior that is supported in by spring supporting axis 12d, spring supporting axis 12d is outstanding with the side with support axis hole 12b, fix an end of this back-moving spring 15 on housing 12, its other end is fixed on to be gone up the spring that forms below the fan shape of rotating lever 14 and hangs and close in the groove 14f and install.Usually, outside lever is pressed sheet 14a and is being given prominence to above housing 12 by the elastic force of back-moving spring 15, and rotating lever 14 is in the state that is subjected to pressed by external force of waiting for.
And, to press when applying external force on the sheet 14a when lever up, rotating lever 14 begins to rotate, and following operation of cam 14c pushes the driver 16a of inner box swich body 16, thereby switches the illustrated contact of not doing of installing in this switch 16 portion.
As shown in Figure 5, above-mentioned box swich body 16 has contact portion, it is in the seal box 16b of cuboid and external isolation, do not illustrate, the outstanding driver 16a that is provided with in the end of sealing case 16b, the outstanding setting connects the 1st～the 3rd terminal 16c～16e that distribution is used in the other end, in the chimeric blank part 12a that is fixedly mounted on housing 12.Then, the opening surface with lid 13 covers blank part 12a constitutes small-sized rotating switch 11.
Like this, when in housing 12, assembling, in housing, only be assembled into rotating lever 14,16 3 of back-moving spring 15 and box swich bodies just can, just constituted rotating switch 11 with lid 13 envelopes are close at last.Have again,,, be accompanied by assembling the minimizing realization cost degradation and the miniaturization in man-hour so can make the internal structure simplicity because components number is few.12e is the terminal connector among the figure.
As the rotating switch 11 of formation under the state that rotating lever is not depressed, shown in Fig. 6 (A) and Fig. 7 (A), externally, lever is pressed sheet 14a and is given prominence to depressed position above the outside of housing 12 by the application of force, in inside, the operation of cam 14c of rotating lever 14 is in the driver 16a that contacts box swich body 16 gently, and the wait pressed state that can press.Thereby box swich body 16 is with the off-state standby.
Then, the operation of opening or closing when the door that is accompanied by refrigerator, the lever of rotating lever 14 is pressed sheet 14a and be pressed following time by the external force of horizontal direction, shown in Fig. 6 (B) and Fig. 7 (B), the elastic force of this rotating lever 14 opposing back-moving springs 15 is that rotating fulcrum rotates with back shaft 14b, in the housing 12 that all is pressed into of this rotating lever 14.
At this moment, when rotating reposefully, the operation of cam 14c of rotating lever 14 contacts and pushes driver 16a with the arc surface curved surface, the rotating lever 14 that bears external force is pressed in the housing 12, rotates to stop when the lever of rotating lever 14 is pressed sheet 14a and become a plane above the housing substantially.The contact of the interior contacts portion of box swich body 16 becomes on-state in this process.
When by door of refrigerator open or the plane when the down state of above-mentioned rotating lever 14 begins to remove the external force of rotating lever 14, rotating lever 14 bears the back stretch of back-moving spring 15 and rotates and resets to the original position of readiness of pressing, simultaneously, driver 16a resets to the origin-location similarly, and the contact portion of box swich body 16 also carries out homing action and returns original state.
As mentioned above,, constitute structure in housing,, be in complete sealing state with external isolation so the contact of sealing type switch body is deployed in seal box with the driver of rotating lever operation sealing type switch body because the box swich body is installed.Therefore, when being applied to adopt the door of refrigerator switch of flammable refrigerant, even flammable refrigerant is when the refrigerator internal leakage, because the contact portion of rotating switch is sealed fully, therefore the flammable refrigerant even generation electric arc can not ignite yet can be used as safe switch.
Have again, when rotating switch is subjected to outside operating physical force, when rotating lever rotates, because thereby the operation of cam of this lever is when pushing driver and carrying out switching manipulation in rotation process, by operation of cam the external force that acts on the straight line is switched on the long contact length that acts on the circular arc direction, and carry out the transmission of pressure, therefore can obtain long operational stroke.Therefore shortened the length of switching manipulation direction, can make the miniaturization of switch, had again, because obtained sufficient operational stroke, even make the switch miniaturization also can obtain stable switch performance.
In the correspondence of the formation of formation of the present invention and the above embodiments, pressed sheets of the present invention is pressed sheet 14a corresponding to the lever of embodiment, the present invention can use according to the technological thought shown in the claim, is not confined to the formation of the above embodiments.
According to the present invention, because the box swich body is installed, sealed fully in the seal box inner contact portion of box swich body in enclosure interior, so the contact portion of installing in sealing type switch body has the high leakproofness with external isolation, can use safely.
Claims (3)
1. rotating switch, its rotating operation power by the rotating lever that is rotated operation that kept by housing is carried out switching manipulation, wherein, have inner be provided with outer air bound from the seal box of contact portion, the box swich body is installed in above-mentioned housing, sealing type switch body is carried out switching manipulation by the rotating operation power of above-mentioned rotating lever to described contact portion, and described housing is further covered by lid.
2. rotating switch as claimed in claim 1, it has: the dished housing of a side opening, seal the described lid of the opening surface of above-mentioned housing; The box swich body, there is driver its end at the sealing case, has in the other end to connect the terminal that distribution is used; Rotating lever, its outside at above-mentioned housing has the pressed sheets of bearing from the external force of this housing foreign side, has the operation of cam that rotates when above-mentioned pressed sheets is subjected to external force and push the driver of above-mentioned box swich body in the inside of above-mentioned housing; Back-moving spring, the pressed sheets that it drives above-mentioned rotating lever makes it give prominence to depressed position in housing foreign side.
3. use in refrigerator door switch, its with rotating switch as claimed in claim 1 or 2 be applied to refrigerator in the door switch that links of the opening and closing operations of door.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP257332/2002 | 2002-09-03 | ||
| JP257332/02 | 2002-09-03 | ||
| JP2002257332A JP2004095453A (en) | 2002-09-03 | 2002-09-03 | Rotation switch and door switch for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1490580A CN1490580A (en) | 2004-04-21 |
| CN1240984C true CN1240984C (en) | 2006-02-08 |
Family
ID=32062252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03154382 Expired - Fee Related CN1240984C (en) | 2002-09-03 | 2003-08-21 | Revolving switch and door switch for refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004095453A (en) |
| CN (1) | CN1240984C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090050453A1 (en) * | 2007-08-23 | 2009-02-26 | Honeywell International Inc. | Explosion proof safety switch apparatus |
| CN101814386B (en) * | 2010-03-19 | 2013-02-27 | 张家港华峰电接插元件有限公司 | Refrigerator door switch |
| JP6180289B2 (en) * | 2013-11-11 | 2017-08-16 | ホシデン株式会社 | switch |
| CN105185639B (en) * | 2015-09-28 | 2018-08-10 | 青岛海尔股份有限公司 | Refrigerator and manual switch component for refrigerator compartment |
| CN112629140B (en) * | 2019-10-09 | 2022-07-26 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112629141B (en) * | 2019-10-09 | 2022-07-26 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN112825291A (en) * | 2019-11-21 | 2021-05-21 | 惠州冠泰电子有限公司 | Sealed refrigerator door switch |
| CN114484960A (en) * | 2020-10-26 | 2022-05-13 | 廖宇玲 | Ice shaving machine |
-
2002
- 2002-09-03 JP JP2002257332A patent/JP2004095453A/en active Pending
-
2003
- 2003-08-21 CN CN 03154382 patent/CN1240984C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1490580A (en) | 2004-04-21 |
| JP2004095453A (en) | 2004-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060208 |