CN1073688C - Improvement in the lamp-holding fixture of a refrigeration apparatus - Google Patents

Abstract

The present invention relates to a refrigerating equipment, in particular to a lamp cap clamp for refrigerators in family. The present invention has a sealed inner space (25) which is arranged with at least a tail end 18 and 35. The inner space can be connected with or separated from an electric conducting wire of a power supply loop that is connected with a lamp. The lamp cap clamp is arranged with at least a placket (10) and a movable piece that is arranged in the inner side of the placket and that can close the placket under the function of a spring piece (14). Also, the movable piece can be driven by a tail end (5) to open the placket. Besides, the present invention is arranged with at least a contact piece (18) that is nearly in a straight line with the placket (10).

Description

The improvement of the lamp base fixture of refrigerating equipment

The present invention relates to a kind of at the indoor modified refrigerating equipment that is provided with improved interior lighting device of food storage.

The present invention can be used for various refrigerating equipments, particularly family type or house type, this equipment is provided with: at least one buttery, the intraoral illumination lamp that said buttery is used, relevant lamp base fixture (or lamp socket, down with) and a refrigeration loop, wherein particularly evaporator section to have at least a part to be hidden in said food storage indoor, said refrigeration loop is filled with inflammable gas for example methane or butane.

For the sake of simplicity, put up with the refrigerating equipment that is provided with a buttery below and describe, but the predicable the present invention of being also can extend and applies on the refrigerating equipment that is provided with several butteries and associated evaporators and intraoral illumination lamp.

The fact that is widely known by the people is; the environmentally friendly machine of seeking development; be that product must be protected environment when going out of use at its end of life; the pressure that this public opinion caused has been made direct and indirect impact to whole industry, makes industry can satisfy the product of this environmental requirement with the bigger degree development that never has.In this respect; directly impact tangible trend as can be seen in general client; they pursue ecological product or green product day by day; and the primary standard of protection environment as purchase; advocate as newspapers and advertising campaign, though this advocation much is autotelic needs for number one.On the other hand, indirect impact is from regulations of formulating and executing a whole set of relevant manufacturing and product design responsibility, and purpose is to eliminate gradually those and is considered to or regards ecological underproof product as.

Basically for above-mentioned second kind of reason, in the heat insulation foamed material, adopt chlorofluorocarbon (CFCS) for the refrigerating equipment of the various types of blowing agent from being excluded or being excluded out gradually the makers' production of most advanced country in the world.Public opinion clearly illustrates that general sensation and pursuit is will buy not contain chlorofluorocarbon when buying refrigerator simultaneously, promptly also it is not used as the refrigerator of working fluid in refrigeration loop.

As a result, just developed such refrigerating equipment, refrigerant wherein or working fluid are to be made of a kind of gas of the ability that does not have remarkable consumption ozone or the mixture of gas, but they are inflammable as a rule.

In order to prevent that this gas from leaking into the danger of blasting in the sealing chamber that stored food is housed, the structure that the recommended employing of intraoral illumination lamp is special can not cause the burning of the admixture of gas that those may be around even it is broken yet.

Should be proposed with reference to the same applicant of this case in this respect Italian utility model application PN93U000024 number, for the purpose of concise and to the point, to explanation of the present invention with reference with quote this application.

But it should be noted that, even this illuminating lamp is protected effectively, its unlikely lighting because break may so that be caused danger at the inflammable admixture of gas around it, this lamp under any circumstance also must be when malfunctioning or can be replaced when breaking.

If the end to the lamp power supply can have explosion-proof performance, so obviously, just can need not adopt explosion-proof lamp fully, but if power supply terminal always can be explosion caused, so this end can not be locked with taking away or be fixed on the end of illuminating lamp self or on its threaded fittings or the lamp holder, so that can get rid of the accidental possibility that produces spark for certain.In addition, the lead itself that said end is divided into two-way also must be connected with the supply terminals in the refrigerating equipment, wants in a word and can fully guarantee safety to this explosion danger.

All these safeguard procedures no doubt can be acted accordingly fully, but this unavoidably will have quite skilled personnel to participate in, so that finish associative operation, and also may change and be not only illuminating lamp and also have lamp base fixture and associated tracks, because as what illustrated, illuminating lamp is ined succession with lamp base fixture.

In fact, the people that the general user promptly has general qualification and technical ability can not change this illuminating lamp, and can to ask for the value of refrigerating equipment and the actual cost of illuminating lamp itself be irrational high price and field personnel attendant's pressure is participated in.

In addition, bad illuminating lamp must take away and can not or hopeless change immediately one new time, refrigerating equipment should be able to remain in operation certainly.In this case, outside the existence meeting of charged end is exposed to by taking away of illuminating lamp, can constitute the situation of a danger far and away.

Therefore preferably can, and in fact this is a main purpose of the present invention, a kind of refrigerating equipment is provided, special in household electric refrigerator or refrigerator, illuminating lamp that this equipment was equipped with and associated lamp fixture head all have explosion-proof structure, wherein illuminating lamp can be taken down from lamp base fixture immediately, even more unskilled people also can accomplish, even and precarious position can not appear in lamp base fixture itself yet after illuminating lamp is taken away, these structures are not too complicated again simultaneously, do not adopt the new technology that to use immediately, therefore can make producing cost remain on quite low level.

For achieving the above object, the invention provides the lamp base fixture that a kind of household electric refrigerator or refrigerator are used, this refrigerating equipment has one or more refrigeration loop that is filled with inflammable cooling gas, and at least one compressor arranged, a condenser, the evaporimeter that one or more and one or more butteries link, said buttery is by at least one incandescent lighting, and this lamp is being supported by a corresponding lamp base fixture, it is characterized in that, said lamp base fixture has and the inner space of sealing isolated with air tight manner and external environment condition, and in this space, be provided with at least one end, said end can contact with the electric lead foundation of the current supply circuit that is connected to lamp or be separated from each other, and, in said inner space, be provided with at least one perforate and one and be arranged in that said perforate is inboard can seal the moving member of said perforate by means of the effect of a spring part, said moving member can also move under the effect of the said moving member of a terminal promotion, and said perforate is opened, in lamp base fixture, also be provided with in addition at least one basically with said perforate end point-blank.

As another kind of solution, the lamp base fixture that provides a kind of household electric refrigerator or refrigerator to use, this refrigerating equipment has one or more refrigeration loop that is filled with inflammable cooling gas, and at least one compressor arranged, a condenser, the evaporimeter that one or more and one or more butteries link, said buttery is by at least one incandescent lighting, and this lamp is being supported by a corresponding lamp base fixture, it is characterized in that, said lamp base fixture has and the inner space of sealing isolated with air tight manner and external environment condition, and in this space, be provided with at least one end, said end can contact with the electric lead foundation of the current supply circuit that is connected to lamp or be separated from each other, and, comprise one first activity in the said inner space and connect the electricity end, this end passes the opening of a suitable gas-tight seal in the said inner space slidably, and can contact with the following contact point of lamp, this lamp is then with being screwed on the part with respective threaded; Connect in said activity on the position, forward position of the terminal inside of electricity and be provided with a conductive tips, said conductive tips can according to one by the position of the moving member that shift knob acted on of refrigerator doors effect, connect the terminal inside position contacting of electricity from one with said activity and move to the position that breaks away from it.

For the reader can be understood better, below the present invention will carry out more detailed explanation with the example that does not limit in conjunction with the accompanying drawings.In the accompanying drawings:

Fig. 1 is the cross-sectional view of the lamp base fixture structure of not adorning lamp that briefly shows according to the present invention;

Fig. 2 is the identical cross-sectional view of relevant explanation with Fig. 1, and different is illuminating lamp installation in position already;

Fig. 3 is the enlarged drawing of the part of cross section shown in Figure 2;

Fig. 4 is the view according to second embodiment of lamp base fixture of the present invention;

Fig. 5 is the view of lamp base fixture shown in Fig. 4, and different is that illuminating lamp does not also have installation in position;

Fig. 6 is second cross-sectional view of lamp base fixture shown in Figure 4.

For example just and for simplicity, will illustrate according to the refrigerating equipment that only has a refrigeration storeroom and throw light on below with a lamp.But significant is, described herein and claimed content also can be applied on the refrigerating equipment of any form similarly, and no matter what of the number of buttery that is adopted and intraoral illumination lamp.

The solution of above-mentioned problem is to make lamp base fixture basically, has a box-like seal construction, is provided with a single recess 2, so that insert the lamp holder 3 of illuminating lamp 4.Said lamp holder is provided with the power supply end that at least one this lamp is used, and endways and the contact between the corresponding power supply part be to take place in the impermeable closed chamber of gas around, therefore the sealing chamber is the part of lamp base fixture, what electrically contacting between the terminal and corresponding feeder ear was to take place in the inner space at closed chamber at illuminating lamp.

According to the first embodiment of the present invention, shown in Fig. 1,2 and 3, lamp holder is provided with two outstanding and parallel ends 5,6 that connect with the interior light-emitting component (not shown) of lamp.

Be arranged on the closure wall 7 of front of recess 2 one, lamp base fixture is provided with two preferably conical guiders such as pilot hole 8,9, and this two hole is arranged in respectively leaves terminal 5,6 place separately with equidistance.

Two pilot holes 8,9 all respectively have a little perforate 10,11 in its termination, the size of this perforate can allow that just each end of illuminating lamp passes through, and outside perforate, be respectively equipped with moving member 12,13, this moving member is because the effect of spring part 14,15 separately, can laterally move relative to each perforate 10,11, thereby seal each perforate.

Further be deep into the inside of lamp base fixture, can find, can seal each perforate except being provided with moving member, also have in addition two elongated slots 16,17 be located at respectively with each perforate position in alignment on, elongated slot can be accepted each end 5,6 just respectively.

Arrange two forms to be preferably the contact end 18,19 of flexure strip respectively along each elongated slot, when arriving whole degree of depth in each end 5,6 each perforate of insertion, each end 18,19 can contact with each end 5,6 just.

In order to make this contact be convenient to carry out, terminal 18,19 are respectively equipped with two guide edges 20,21 in its end towards illuminating lamp, and this guide edge preferably forms corresponding terminal 18,19 bendings, should then be connected with current supply line securely by end 18,19.

At last, moving member 12,13 also is provided with the inclined side 22,23 towards each perforate on the appropriate section of its sealing corresponding aperture.

Therefore box-like lamp base fixture 1 has a structure of sealing fully, and when it be contained in must the inwall of buttery of illumination on the time, it further seals its inner space in airtight mode, and particularly it keeps the inner space 25 of the contact-making surface of end 5,6 and associated end 18,19.

In order to guarantee to make inner space 25 that the most reliable gas-tight seal can be arranged, favourable way is to establish the inner seal ring 26 of a flexibility, arranges to such an extent that make it face the inclined side of moving member 12,13.

This sealing ring is flexible and is preferably made by tartan, make when illuminating lamp is taken away, two moving members 12 and 13 are because the effect of spring part separately moves forward is pressed on the sealing ring 26, thereby guarantee the complete airtight sealing of inner space 25.

The operation of said structure is as follows: illuminating lamp did not also insert therebetween if the supposition lamp base fixture had correctly installed already, promptly take away (Fig. 1) from its lamp socket, two moving members 12 and 13 are because the migrations of its spring part 14,15 separately in this case, move to the position of blocking each hole 10,11, the result, gas around lamp base fixture just is blocked reliably, can not leak in its inner space, so just can eliminate any explosion danger that causes owing to the spark that produces between 18,19 endways actually.

This gas-tight seal effect can obtain with elastic ring 26 or similarity piece especially effectively, because this elastic ring is arranged at the front of moving member 12,13, can props up its impetus and cause an effective airtight sealing in each perforate 10,11.

Then in the time illuminating lamp will being encased in its lamp socket, lamp holder can be inserted in the recess 2, terminal 5 and 6 owing to guided by pilot hole 8 and 9 separately like this, just collide and promote the inclined side of moving member, thereby they are slided along horizontal with the direction in contrast to the spring part migration, and the admission passage of each end 5,6 just is opened like this, and each end 5,6 can continue to slide along elongated hole 16,17, finish its insert action, so just contact with corresponding terminal 18,19.In order to accomplish this point easily, be provided with two guide edges 20,21, can actually each end be directed into slidably terminal 5,6 and be on the position of the relation of keeping to the side on a limit (Fig. 2) with corresponding end 18,19.

When needs are changed illuminating lamp, if as long as firmly it is extracted used power can overcome endways between 5,6 and terminal 18,19 and same terminal 5,6 and the frictional force that between the moving member on these ends 12,13, exists of transversal thrust just passable.When terminal 5,6 were pulled out, said moving member 12,13 was no longer blocked by end, and understood because the migration of spring part separately turns back on the origin-location of stopping up each hole again.

The second embodiment of the present invention is shown in Fig. 4 to 6.

Here need consult Fig. 4 especially, can see that in the figure containing one at the inside of lamp base fixture airtight space is essentially columniform first activity and connects electricity terminal 31, but this end passes the opening of a suitable gas-tight seal in the inner space slidably, and further contact with the following contact point 32 of illuminating lamp, this lamp is traditional plug screw formula (being screw type), and by traditional mode to be screwed on the accessory 33 with respective threaded.

Arrange to have a conductive tips 35 on the position, forward position of the inside 34 of flexible lamp contact, this conductive tips 35 can also be suitable pivot pin 36 rotations that are arranged in the airtight internal space around one under the thrust that is applied to its other end 37.

The other end 37 can be promoted by an elasticity release member 38, and this release member is the part of element that the airtight sealing that is used for guaranteeing the inner space is set, and itself can be promoted by the movable part 39 that refrigerator doors effect switch is acted on again.

Give prominence to from the threaded wall of lamp base fixture by second electric contact piece that provides at the terminal 31B of a side, and contact with the threaded accessory of bulb or the lamp holder 33 of conduction.

The second electric contact piece 31B enters in the inner space 25 by a flexible gas-tight seal packing ring 50, and departing the contact can be done with the conductor 45B on being connected to another polarity of power supply in electric contact piece 31B the other end in inner space 25.

The arrangement of flexible gas-tight seal packing ring 50 and electric contact piece 31B and 45B and shape can guarantee to accomplish, when illuminating lamp is screwed into fully, its threaded part 33 can be set up to contact and promote this part and move inward with electric contact piece 31B, and the other end of this part is contacted with conductor 45B foundation.

When this lamp is taken away, as shown in Figure 5, contact 31B is just no longer promoted by the threaded portion on the lamp, but owing to the effect of elastic packing packing ring 50 moves forward, thereby its other end is left from conductor 45B, and the result just can make the insulation of itself and power supply.

Consult Fig. 5, the situation when same lamp base fixture shown in this figure is not adorned lamp it should be noted, the outside of the recess used of dress illuminating lamp 40 is made by elastomeric material, and is shaped as an inside frustoconical.In addition, being used for the size of internal diameter of the outside 40 by illuminating lamp can flexibly block bulb just when illuminating lamp being screwed on its lamp socket, so that the inflammable gas that may exist in refrigerating chamber is blocked outside reliably, makes it can not arrive binding limit 41 between bulb and the lamp holder 42.

Like this, might rupture even link the limit, but, still can guarantee to have airtight sealed effect, therefore can adopt the lamp of any pattern, and needn't leave no choice but adopt special explosion-proof lamp because the outside 40 of recess acts on the bulb.

Consult Fig. 6, cross section shown in this figure just and the cross sections shown in Fig. 4 be orthogonal.It should be noted have an elastic component 43 to be located at lamp socket and connecing between the electricity terminal 31 of passing.When in dormant state, when promptly not adorning lamp, the latter is occupied on the position that is positioned at outside the inner space 25 because elastic component 43 acts on the elastic reaction that connects on the electricity terminal 31 that passes.

The operation of this lamp base fixture is as follows: when lamp is taken away (Fig. 5), elastic component 43 moves the inside 34 of the active distal end 31 that passes and leaves conductive tips 35, the end 31 that passes at that time slides in a conduit, therefore the air tight construction of this conduit can guarantee not allow gas penetrate in the inner space 25, does not have possibility to cause can be in space 25 explosion caused environment.

As mentioned above, the situation of another contact 31B similarly, therefore the active distal end 31 and the contact 31B that pass separate with its power supply, explosion caused danger just can not take place in the result when illuminating lamp is taken away.

Otherwise when lamp was loaded onto, the contact point of this lamp 32 can promote the head of the end 31 that passes, it is moved inward until its inner end with always be connected to conductive tips 35 on the power supply and contact by another resilient contact 45 till.And the situation between the screw head of contact 31B and this lamp and last similar, as mentioned above, so this lamp can correctly be kept supplying electric current now.

In addition, because being in contact with one another a little between contact 31B and conductor 45B between the energized conductor, and between the end 31 that passes and terminal 35, and they all are positioned at inner space 25, therefore can guarantee to isolate fully with extraneous atmosphere, even thereby between these electrical pickofves, produce spark, also can get rid of all relevant danger.

When the door of refrigerating equipment is closed, relevant lever 39 is acted on the elastic sealing element 38, the sealing part is under the effect of this power, just move forward until with till dock the end of conductive tips 35, this conductive tips is as a lever around pivot pin 36 rotations, make and self leave, thereby cut off the electric current supply of this lamp from the inner end 34 that connects electricity terminal 31 that passes.At this moment, though may produce spark when separating endways between them, because spark is to be created within the inner space 25, and this space is hedged off from the outer world with the air tight manner sealing, and therefore any explosion caused danger can not take place.

The result is to adopt the present invention can obtain following effect:

A) demand does not help the attendant, but just cargo lamp of user oneself;

B) can connect soon between illuminating lamp and the relevant current supply circuit;

C) lamp of selling on the market of available usual use;

D) even when not adorning lamp on the lamp base fixture of buttery, refrigerating equipment also can use;

E) total cost performance of described structure is low, and can adopt technology simple, reliable, that obtain easily.

What should affirm is, is different from above-mentioned form and shape realizes according to lamp base fixture of the present invention is also available, and does not still leave scope of the present invention on principle.

Claims (12)

1. the lamp base fixture used of household electric refrigerator or refrigerator, this refrigerating equipment has one or more refrigeration loop that is filled with inflammable cooling gas, and at least one compressor arranged, a condenser, the evaporimeter that one or more and one or more butteries link, said buttery is by at least one incandescent lighting, and this lamp is being supported by a corresponding lamp base fixture (1), it is characterized in that, said lamp base fixture (1) has and the inner space (25) of sealing isolated with air tight manner and external environment condition, and in this space, be provided with at least one end (18,35), said end can contact with the electric lead foundation of the current supply circuit that is connected to lamp or be separated from each other, and, in said inner space (25), be provided with at least one perforate (10) and one and be arranged in that said perforate (10) is inboard can seal the moving member (12) of said perforate by means of the effect of a spring part (14), said moving member can also move under the effect of the said moving member of an end (5) promotion, and said perforate is opened, in lamp base fixture, also be provided with in addition at least one basically with said perforate (10) end (18) point-blank.

2. according to the lamp base fixture of claim 1, it is characterized in that said at least one moving member (12) is provided with an inclined side towards said perforate (22) on it stops up the appropriate section of said perforate (10).

3. according to the lamp base fixture of claim 1 or 2, it is characterized in that said perforate (10) is provided with a conical guider (8), be suitable for making the end (5) of lamp to be inserted into easily in the said perforate (10).

4. according to the lamp base fixture of claim 1 or 2, it is characterized in that, also be provided with one in inside and arrange in line elongated slot (16) with said perforate (10), be provided with a contact (18) along said elongated slot, the shape of this contact is preferably a flexure strip and is provided with best by the guide edge that is bent to form (20) in its end towards said elongated slot.

5. according to the lamp base fixture of claim 1 or 2, it is characterized in that said moving member (12) can slide on the direction that an axis with said perforate is orthogonal.

6. according to the lamp base fixture of claim 1 or 2, it is characterized in that, be provided with elastic device (26), it can bear the power that said inclined side (22) applies when said lamp is taken away, thereby can be flexibly and prevent the motion of said moving member (12) hermetically.

7. according to the lamp base fixture of claim 1 or 2, it is characterized in that, be provided with a recess (2), can be used to take up the lamp holder (3) of lamp (4), said end (5) can be inserted in the said perforate (10) in the respective side that comprises said perforate (10).

8. the lamp base fixture used of household electric refrigerator or refrigerator, this refrigerating equipment has one or more refrigeration loop that is filled with inflammable cooling gas, and at least one compressor arranged, a condenser, the evaporimeter that one or more and one or more butteries link, said buttery is by at least one incandescent lighting, and this lamp is being supported by a corresponding lamp base fixture (1), it is characterized in that, said lamp base fixture (1) has and the inner space (25) of sealing isolated with air tight manner and external environment condition, and in this space, be provided with at least one end (18,35), said end can contact with the electric lead foundation of the current supply circuit that is connected to lamp or be separated from each other, and, comprise one first activity in the said inner space (25) and connect electricity terminal (31), this end passes the opening of a suitable gas-tight seal in the said inner space slidably, and can contact with the following contact point (32) of lamp, this lamp is then with being screwed on the part (33) with respective threaded; Connect in said activity on the position, forward position of the terminal inside (34) of electricity and be provided with a conductive tips (35), said conductive tips can according to one by the position of the moving member that shift knob acted on (39) of refrigerator doors effect, connect the terminal inside position contacting of electricity from one with said activity and move to the position that breaks away from it.

9. according to the lamp base fixture of claim 8, it is characterized in that said moving member (39) is arranged to act on the elasticity release member (38), this release member is applied to corresponding impetus on another end (37) of said conductive tips (35).

10. according to the lamp base fixture of claim 9, it is characterized in that said conductive tips (35) can be around pivot pin (a 36) rotation that is located in the said inner space.

11. according to each lamp base fixture in the claim 8 to 10, it is characterized in that, (31B) provides one second electric contact piece by an end in a side, this end (31B) is outstanding and contact with the threaded section of the conduction of lamp from the threaded wall of lamp base fixture, said second electric contact piece (31B) enters in the said inner space (25) by a flexible gas-tight seal packing ring (50), and departing the contact can be done with the conductor (45B) on being connected to another polarity of power supply in the other end of said electric contact piece (31B), said flexible gas-tight seal packing ring (50) and said electric contact piece (31B, 45B) be configured to, when lamp is screwed into screw thread, its threaded part (33) promotes said electric contact piece (31B) and moves inward, thereby its other end is contacted with conductor (45B), and when lamp is taken away, said contact (31B) is moving to travelling backwards, thereby its other end is left from said conductor (45B).

12. according to each lamp base fixture in the claim 8 to 10, it is characterized in that, the outside (40) that takes up the recess that lamp uses is made by elastomeric material, and be shaped as an inside frustoconical, the size of the internal diameter of said outside (40) can flexibly be blocked bulb just with the lamp installation in position time.

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