CN1249753C - Refrigerator door switch - Google Patents
Refrigerator door switch Download PDFInfo
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- CN1249753C CN1249753C CN 02120949 CN02120949A CN1249753C CN 1249753 C CN1249753 C CN 1249753C CN 02120949 CN02120949 CN 02120949 CN 02120949 A CN02120949 A CN 02120949A CN 1249753 C CN1249753 C CN 1249753C
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Abstract
The present invention relates to a door switch for a refrigerator. The door switch (30) for a refrigerator comprises a main body (31) for the refrigerator body, a cover shell (60) and flanges (50a and 50b), wherein the main body is provided with a conductive terminal capable of conducting electricity, the cover shell can lead a conductive terminal circuit to be broken exteriorly, and the flanges are arranged at a specified interval from the conductive terminals and can prolong the insulation distance between the conductive terminal and the exterior. Because the insulation distance between the position of the terminal and the refrigerator body is large enough, the present invention can faithfully guarantee the insulation distance between a movable terminal (35) of the door switch for the refrigerator and the refrigerator body (40). In addition, because the insulation distance between the position of the terminal and the refrigerator body is enough, electric current can be prevented from leaking from the position of the terminal, and no electric current leaks to the refrigerator body. Thus, the present invention is favorable for preventing problems from occurring, such as the damage of electrical components, users electric shock, etc., and the door switch for the refrigerator further conforms to the specification requirement for safety.
Description
Technical field
The present invention relates to the refrigerator door switch in a kind of mechanical engineering refrigeration or cooling field refrigerator, refrigerator, cooling or the refrigerating plant, particularly relate to a kind ofly in order to prevent the current direction electric refrigerator housing body in the door of refrigerator switch, and possess the refrigerator door switch of complete insulation system.
Background technology
General door switch is arranged on a side of electric refrigerator housing body, is that a kind of switch along with door of refrigerator operates, and can ON/OFF (on/off) ice lamp inside the box and beginning/stop the device of (on/off) freeze cycle work.
Seeing also shown in Figure 1ly, is the section of structure of existing traditional refrigerator door switch of constituting according to prior art, and Fig. 2 is the profile of A direction among Fig. 1.
As shown in the figure, existing traditional door switch 10 is possessing the upper board 11a that runs through above-mentioned casing 11 from the inboard of casing 11 and outstanding button 12.In fact, above-mentioned button 12 is and the contacted part of door of refrigerator, and be configured to can inside and outside come in and go out in above-mentioned casing 11.Above-mentioned upper board 11a go up to form be provided with above-mentioned button 12 usefulness are set button by hole 11b, the outside of above-mentioned button by hole 11b forms with the interval of regulation and is provided with the guider 11c that the above-mentioned button 12 of guiding is come in and gone out.
Examine the inside of above-mentioned casing 11, can see that the inside line that above-mentioned button 12 is included in the casing is being supported by spring 13.Above-mentioned spring 13 is pressed because of above-mentioned button 12 to shrink when door of refrigerator closes, and the elasticity with it when door is opened makes above-mentioned button 12 return to outstanding state.
And the above-mentioned button of ratio of the diameter design of the box house position 12a of above-mentioned button 12 is big slightly by hole 11b's.Thereby the box house position 12a of above-mentioned button 12 can't make button 12 can only be projected into the length of above-mentioned casing 11 outsides regulation by above-mentioned button by hole 11b.
Again, a side of the 12a outside, box house position of above-mentioned button 12 forms and is provided with contact site 12b.The side of above-mentioned contact site 12b has with above-mentioned contact site 12b combines closely, and drives mouth 14 by the terminal that it is supporting, and the side that above-mentioned terminal drives mouth 14 is provided with the terminal switch portion that is made of movable terminal 15 and fixed terminal 16.
One side drives mouth 14 by the fixing above-mentioned terminal of hinge (hinge) H, along with moving up and down and left-right rotation of above-mentioned contact site 12b.Above-mentioned movable terminal 15 is passed or recovery by the motion that above-mentioned terminal drives mouth 14, and contacts and rise on-off action with said fixing terminal 16.And, above-mentioned movable terminal 15, the connection between fixed terminal 16 and the outside terminal 17 can be conducted electricity.
The operative scenario of the refrigerator door switch that will constitute according to above-mentioned prior art structure is described as follows below:
Above-mentioned button 12 is gone into the inside of above-mentioned casing 11 by a thruster of door of refrigerator, and then above-mentioned contact site 12b moves down above-mentioned terminal driving mouth 14 is pushed away to the right.Above-mentioned terminal drives mouth 14 and is pushed to the right, and then above-mentioned movable terminal 15 also is pushed to the right, and above-mentioned movable terminal 15 and fixed terminal 16 are separated.Thereby be in the ice lamp inside the box and go out the state that freeze cycle is started working.
On the other hand, when door of refrigerator was opened, the compressed above-mentioned spring 13 in the below of above-mentioned box house position 12a was upspring, and then upspringing of this spring 13 risen above-mentioned contact site 12b.The rising of above-mentioned contact site 12b makes by above-mentioned contact site 12b and pushes right above-mentioned terminal driving mouthful 14 recoveries left to.Above-mentioned terminal drives mouthfuls 14 and is moved to the left, and then driven mouthful 14 above-mentioned movable terminals of pushing to move to right 15 by above-mentioned terminal and also restore left, and above-mentioned movable terminal 15 and fixed terminal 16 contacts with each other.When above-mentioned movable terminal 15 contacted with fixed terminal 16, the ice lamp inside the box was bright, and freeze cycle is started working.
Seeing also shown in Figure 2ly, is to form under the state in loop at above-mentioned electric current, makes the movable terminal 15 and the outside terminal 17 of ice lamp inside the box and freeze cycle work; And the insulation distance I that forms between they and the electric refrigerator housing body 11.Conductive conducting terminal is arranged on the box house that insulating material is made, and the switch that possesses this structure is set at the steel body portion.So-called insulation distance refers to is exactly the distance that forms between the conducting terminal of above-mentioned switch and the above-mentioned steel body portion, and is divided into space length and surface distance.Above-mentioned space length is meant the air line distance between conducting terminal and the steel body portion, when surface distance is meant that insulator is between above-mentioned conducting terminal and steel body portion, and the distance that forms along the surface of above-mentioned insulator.Be arranged on the steel body portion if will possess the switch of conducting terminal, the insulation distance between above-mentioned conducting terminal and the steel body portion will satisfy space length and surface distance at least, and one of them just is unlikely to electric leakage.And the mensuration of insulation distance is to be set under the state of steel body portion at the switch that possesses conducting terminal, measures the beeline between above-mentioned conducting terminal and the steel body portion.But, as shown in Figure 2, under the part of the steel box section state overlapping, be that benchmark is measured insulation distance then with above-mentioned conducting terminal and the nearest earth point of steel box section by plastics (plastic) insulator.
During the door of refrigerator switch closure, above-mentioned movable terminal 15 becomes conducting terminal, and the plastic box 11 of above-mentioned door of refrigerator switch then becomes the insulator between above-mentioned conducting terminal and steel body portion.Thereby the insulation distance between above-mentioned movable terminal 15 and the electric refrigerator housing body 20 is meant, extends to the left-hand portion of upper board 11a of above-mentioned casing 11 on above-mentioned electric refrigerator housing body 20 tops and the distance between the above-mentioned movable terminal 15.
But the aforesaid structure that has traditional refrigerator door switch now has following problem:
As shown in Figure 2, the insulation distance between above-mentioned movable terminal 15 and the electric refrigerator housing body 20 is 8mm just only, and this can not satisfy the electrical safety specification requirement that insulation distance between conducting terminal and the steel body portion is necessary for 10mm.Leak situation thereby flow to electric current on the above-mentioned movable terminal 15, and above-mentioned electric leakage damages the refrigerator electric component and makes problems such as the user gets an electric shock to electric refrigerator housing body 20.
This shows that above-mentioned existing refrigerator door switch still has many defectives, and the assistant officer treats further to be improved.
Because the defective that may leak electricity that above-mentioned existing refrigerator door switch exists, the inventor is based on abundant practical experience and professional knowledge, actively studied innovation, 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, overcomes the defective that existing refrigerator door switch exists, and a kind of refrigerator door switch of new structure is provided, and makes it prevent that with the insulation distance that satisfies the safety requirements requirement situation of leaking electricity from taking place.
The present invention solves its technical problem underlying and realizes by the following technical solutions.A kind of refrigerator door switch according to the present invention's proposition, it comprises the casing body 31 that combines with case 60, be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal is along with the folding of door of refrigerator opens or closes corresponding fixed terminal; Also comprise and giving prominence between the lateral surface of above-mentioned movable terminal and casing body, and the lateral surface of casing body between form the body flange of flange groove, above-mentioned body flange and flange groove can prolong insulation distance.
The present invention solves its technical problem underlying and also realizes by the following technical solutions.A kind of refrigerator door switch according to the present invention's proposition, it comprises casing body 31, be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal is along with the folding of door of refrigerator opens or closes corresponding fixed terminal; Also comprise the case that is connected to above-mentioned casing body, and outstanding being positioned on the above-mentioned case, can be inserted into the lateral surface of casing body and the case flange between the movable terminal, above-mentioned case flange can prolong insulation distance.
The present invention solves its technical problem underlying and also realizes by the following technical solutions.A kind of refrigerator door switch according to the present invention's proposition, it comprises casing body 31, be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal is along with the folding of door of refrigerator opens or closes corresponding fixed terminal; Also comprise and giving prominence between the lateral surface of above-mentioned movable terminal and casing body, can and the lateral surface of casing body between form the body flange of flange groove, and combine with above-mentioned casing body, possess the case of the flange that can be inserted into above-mentioned flange groove.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the invention relates to a kind of refrigerator door switch, door switch comprises the casing body that possesses the conducting terminal that can conduct electricity; Combine the case that can conducting terminal be opened circuit from the outside with above-mentioned casing; And the interval of regulation is arranged, and can prolong the flange of the insulation distance between above-mentioned conducting terminal and the outside with above-mentioned conducting terminal.Because the present invention can ensure the movable terminal of door switch and the insulation distance between the electric refrigerator housing body conscientiously, so this not only meets the safety requirements requirement, the situation that also can prevent to leak electricity takes place.
As above the structure according to the present invention, we can expect by above-mentioned body flange and flange groove to also have the case flange, the effect that in fact can obtain prolonging insulation distance.
According to the present invention, refrigerator door switch as above can satisfy safety requirements.The favourable part of structure of the present invention is that the insulation distance between terminal position and the electric refrigerator housing body has enough big, and the insulation that can satisfy the safety requirements requirement is apart from length.Not only like this, because the insulation distance between above-mentioned terminal position and the electric refrigerator housing body is enough abundant, can prevent that electric current from spilling from above-mentioned terminal position.Leak to above-mentioned electric refrigerator housing body thereby do not have electric current, help preventing problem generations such as the damage of electric component and user's electrics shock.
In sum, the refrigerator door switch of special construction of the present invention, have above-mentioned many advantages and practical value, no matter it structurally or bigger improvement is all arranged on the function, is had large improvement technically, and has produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, and not seeing have similar structural design to publish or use in like product, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for 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.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the profile that has traditional refrigerator door switch now.
Fig. 2 be among Fig. 1 a A to section of structure.
Fig. 3 a is the structural representation of refrigerator door switch of the present invention under the case released state.
Fig. 3 b is the profile of refrigerator door switch first embodiment of the present invention.
Fig. 3 c be among Fig. 3 b B to section of structure.
Fig. 4 is the profile of refrigerator door switch second embodiment of the present invention.
Fig. 5 is the profile of refrigerator door switch the 3rd embodiment of the present invention.
10....... door switch 11...... casing
11a...... upper board 11b..... button passes through the hole
11c...... guider 12...... button
12a...... 12b..... contact site, box house position
13....... spring 14...... terminal drives mouth
15....... movable terminal 16...... fixed terminal
20....... electric refrigerator housing body 30...... door switch
31....... body 31a..... upper board
32....... button 32a..... shell inside portion
32b...... contact site 34...... terminal drives mouth
35...... movable terminal (operation terminal) 36...... fixed terminal
37...... outside terminal 40...... electric refrigerator housing body
50a..... body flange 50b..... case flange
52...... flange groove 60...... case
17...... outside terminal H....... hinge (hinge)
I....... insulation distance
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of refrigerator door switch, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also Fig. 3, Fig. 4, shown in Figure 5, is the schematic diagram of door switch of the present invention under the case released state shown in Fig. 3 a, is the profile that constitutes first embodiment of door switch of the present invention shown in Fig. 3 b, and Fig. 3 c then is the B directional profile figure of Fig. 3 a.Shown in Figure 4 is the profile that constitutes second embodiment of door switch of the present invention, and shown in Figure 5 be the profile that constitutes the 3rd embodiment of door switch of the present invention.
Shown in Fig. 3 a, the door switch 30 of refrigerator door switch of the present invention is possessing the upper board 31a that runs through body 31 and outstanding button 32, and above-mentioned button 32 is configured to the above-mentioned casing 31 of can inside and outsidely coming in and going out.Above-mentioned button 32 is being supported by spring 33 in the part of above-mentioned body 31 inside.
The lower end part that the box house of above-mentioned button 32 divides is provided with shell inside portion 32a, and the side of above-mentioned shell inside portion 32a is provided with above-mentioned shell inside portion 32a and combines closely, and the terminal that is supporting drives mouth 34.The side that above-mentioned terminal drives mouth 34 is provided with movable terminal 35 and fixed terminal 36.
Above-mentioned terminal drives mouth 34 and movable terminal 35 and fixed terminal 36 and all is arranged on body 31 inside, and these parts all are in and outside isolated state when case 60 combines with casing body 31.
One side drives mouth 34 by the fixing above-mentioned terminal of hinge H, along with moving up and down and left-right rotation of above-mentioned shell inside portion 32a.Above-mentioned movable terminal 35 can contact and rise on-off action with said fixing terminal 36 by the motion of above-mentioned terminal driving 34.Above-mentioned movable terminal 35 links to each other with outside terminal 37 separately with fixed terminal 36, and by this outside terminal 37 with electric current supply movable terminal 35 and fixed terminal 36.Thereby there are above-mentioned movable terminal 35 that electric current flows through and fixed terminal 36 and outside terminal 37 all to become conducting terminal.
Laterally projecting between the upper board 31a of above-mentioned casing 31 and the above-mentioned movable terminal 35 have body flange 50a, and above-mentioned body flange 50a and above-mentioned casing 31 formation one.The upper board 31a of the top of above-mentioned movable terminal 35 and casing 31 is kept apart by above-mentioned body flange 50a, and forms flange groove 52 between the upper board 31a of flange and above-mentioned casing 31.Above-mentioned casing 31 combines with case 60, is formed front (on the drawing) part of the casing 31 of built-in above-mentioned movable terminal 35 and fixed terminal 36 etc. by above-mentioned case 60.According to the present invention, above-mentioned body flange 50a forms along the upper board of movable terminal 35, but with the upper board 31a of casing body 31 certain interval is arranged, and between flange and upper board 31a formation flange groove 52.
According to the first embodiment of the present invention, movable terminal 35 in the door switch 30 and the insulation distance I between the electric refrigerator housing body 40 are shown in Fig. 3 b, and it forms along the surface of body flange 50a and flange groove 52.This can fully guarantee insulation distance in fact.
See also shown in Figure 4, be with Fig. 3 corresponding states under second embodiment of the invention.According to present embodiment, the previous section of above-mentioned casing body 31 combines with case 60.And in above-mentioned case 60, case flange 50b is to upper process, and above-mentioned case flange 50b will be inserted between the upper board 31a of the top of above-mentioned movable terminal 35 and body 31.Thereby the insulation distance I between above-mentioned movable terminal 35 and the electric refrigerator housing body 40 forms along the surface of above-mentioned case flange 50b.
We can say that present embodiment has substantially embodied the body flange 50a among first embodiment with case 60.Present embodiment is mounted to case flange 50b and can be inserted between above-mentioned movable terminal 35 and the casing upper board 31a, makes its substantial effect be equal to first embodiment.
As shown in Figure 5, be the third embodiment of the present invention, form between the above-mentioned movable terminal 35 and the upper board 31a of casing 31 and be provided with body flange 50a, and between the upper board 31a of above-mentioned body flange 50a and above-mentioned casing 31, form flange groove 52.
The outstanding case flange 50b that is provided with is arranged on the above-mentioned case 60 again.When above-mentioned case 60 combines with above-mentioned casing 31,52 li of the flange grooves that forms between upper board 31a that above-mentioned case flange 50b will be inserted at above-mentioned casing 31 and the above-mentioned body flange 50a.Thereby movable terminal 35 in the above-mentioned door switch 30 and the insulation distance I between the electric refrigerator housing body 40 form zigzag shape (zigzag) along above-mentioned body flange 50a and case flange 50b.
Can know by above-mentioned explanation and to find out that present embodiment comes down to the combining structure form of first embodiment and second embodiment.
Now as above the operative scenario of the refrigerator door switch of the present invention of structure is described as follows:
According to the present invention, door switch 30 is arranged in the refrigerator or the position, front of body, can contact with a side of door of refrigerator or door of refrigerator.When refrigerator doors was closed, above-mentioned button 32 was inserted into body 31 inside downwards by a side pressure of above-mentioned door of refrigerator, and then the shell inside portion 32a that forms in the lower end of the box house branch (former expression 32a is left out) of above-mentioned button 32 drives mouthfuls 34 with above-mentioned terminal and drives to the right.Above-mentioned terminal drives the driving meeting of mouth 34 and pushes above-mentioned movable terminal 35 to right bending, and above-mentioned movable terminal 35 opens circuit with said fixing terminal 36.Opening circuit of above-mentioned terminal 35,36 gone out the ice lamp inside the box.
When door of refrigerator is opened, outstanding along with above-mentioned button 32, the box house of above-mentioned button 32 divides the shell inside portion 32a of lower end to rise, and then above-mentioned terminal drives mouthfuls 34 and restores left.And, drive mouthfuls 34 by above-mentioned terminal and push that right movable terminals 35 restore to and contact with above-mentioned fixed terminal 36, then lamp is bright in the refrigerator.At this moment, above-mentioned movable terminal 35 and fixed terminal 36 have electric current to flow through, the flange 50a that forms between the upper board 31a by above-mentioned movable terminal 35 and casing 31, and 50b can prevent that the electric current on the above-mentioned movable terminal 35 from leaking to above-mentioned electric refrigerator housing body 40.
As mentioned above, basic fundamental of the present invention is contemplated that, casing 31 and with case 60 that above-mentioned casing 31 combines on form and be provided with flange 50a, 50b, by above-mentioned flange 50a, 50b can prolong the movable terminal 35 of casing 31 inside and the insulation distance between the electric refrigerator housing body 40.
Usually, in the technology of the present invention design category as above,, have the possibility of a lot of malformations for current industry technical staff author.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any personnel that are familiar with this technology may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (3)
1, a kind of refrigerator door switch, it is characterized in that it comprises the casing body (31) that combines with case (60), be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal disconnects or closure with corresponding fixed terminal along with the folding of door of refrigerator; Also comprise and giving prominence between the lateral surface of above-mentioned movable terminal and casing body, and the lateral surface of casing body between form the body flange of flange groove, above-mentioned body flange and flange groove can prolong insulation distance.
2, a kind of refrigerator door switch, it is characterized in that it comprises casing body (31), be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal disconnects or closure with corresponding fixed terminal along with the folding of door of refrigerator; Also comprise the case that is connected to above-mentioned casing body, and outstanding being positioned on the above-mentioned case, can be inserted into the lateral surface of casing body and the case flange between the movable terminal, above-mentioned case flange can prolong insulation distance.
3, a kind of refrigerator door switch, it is characterized in that: comprise casing body (31), be arranged on the movable terminal of above-mentioned casing body interior, and the fixed terminal that is arranged on above-mentioned casing body interior, above-mentioned movable terminal disconnects or closure with corresponding fixed terminal along with the folding of door of refrigerator; Also comprise and giving prominence between the lateral surface of above-mentioned movable terminal and casing body, can and the lateral surface of casing body between form the body flange of flange groove, and combine with above-mentioned casing body, possess the case of the flange that can be inserted into above-mentioned flange groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120949 CN1249753C (en) | 2002-06-06 | 2002-06-06 | Refrigerator door switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120949 CN1249753C (en) | 2002-06-06 | 2002-06-06 | Refrigerator door switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1464520A CN1464520A (en) | 2003-12-31 |
| CN1249753C true CN1249753C (en) | 2006-04-05 |
Family
ID=29742664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02120949 Expired - Fee Related CN1249753C (en) | 2002-06-06 | 2002-06-06 | Refrigerator door switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1249753C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784854B (en) * | 2007-08-24 | 2012-09-05 | 株式会社东芝 | Refrigerator |
| CN112629140B (en) * | 2019-10-09 | 2022-07-26 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
-
2002
- 2002-06-06 CN CN 02120949 patent/CN1249753C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1464520A (en) | 2003-12-31 |
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