Background technology
Fig. 1 is the perspective view of general refrigerator.This refrigerator comprises the main body 1 with inner casing 2 and shell 3, the simple gate that is used as the ON/OFF parts or multi-door 4 that is connected with front surface with main body 1.
Door open-close checkout gear 5 is arranged in a side of inner casing 2, when refrigerator doors 4 is opened, and the lamp (not shown) that this door open-close checkout gear 5 is opened in refrigerators, and stop the fan motor (not shown) and outwards flow out from refrigerator to prevent cold air.On the contrary, when refrigerator doors 4 is closed, the lamp in door open-close checkout gear 5 closing refrigerators, and fan motor.
Referring now to Fig. 2,, 3,4A, 4B and 5 introduces the structure of existing door open-close checkout gear.
Fig. 2 is the vertical cross-section diagram of existing door open-close checkout gear under the state of installing.Fig. 3 is the vertical cross-section diagram that constitutes the door open-close sense switch of existing door open-close checkout gear.Fig. 4 A and 4B are respectively vertical cross-section diagram and the perspective views that constitutes the door open-close sense switch lid of existing door open-close checkout gear.Fig. 5 is the vertical cross-section diagram that constitutes the feedthrough connector of existing door open-close checkout gear.
Traditional door open-close checkout gear comprises: a feedthrough connector 10 that is electrically connected with the control circuit of refrigerator; A door open-close sense switch 20 (being referred to as " door switch " later on) that is reservation shape, this door switch 20 has the switching device of an open/close state that is used for detecting gate 4, the upper surface of this door switch 20 is provided with a retainer ring 21, its lower surface is provided with a fixed projection 22, its front surface is provided with a substrate 24, this substrate 24 is by below the circumferential surface of an installing hole 2a of the inner casing 2 discussed being supported securely, also be provided with a terminals unit 23, this terminals unit 23 links to each other with the feedthrough connector 10 of a side that is arranged on lower surface; And form lid shape cover of door switch 30 with predetermined space unit, and this cover of door switch 30 covers the rear surface of door switch 20, and a lead-in wire gathering sill 31 is housed, and this lead-in wire gathering sill 31 is at a side directed lead-in wire 11 of its front surface.
Here, door switch 20 insertion installing hole 2a wherein are positioned at a side of inner casing 2.When door switch 20 inserted and be installed in the installing hole 2a of inner casing 2, the substrate 24 of door switch 20 was fastened firmly to the front surface of inner casing 2, and retainer ring 21 and fixed projection 22 support and be fixed on the rear surface of inner casing 2 simultaneously.
When cover of door switch 30 covered door switch 20 on the rear surface that is positioned at inner casing 2, figure notation 40 expressions were adhered to adhesive-bonded fabric on the inner casing 2 with cover of door switch 30.
The installation process of existing door open-close checkout gear is described now.
At first, adhesive-bonded fabric 40 is bonded on the front surface of cover of door switch 30.Be arranged under the inboard state at feedthrough connector 10, cover of door switch 30 is bonded on the rear surface of the inner casing 2 with installing hole 2a.
Here, the lead-in wire 11 by the lead-in wire gathering sill 31 guiding feedthrough connectors 10 of cover of door switch 30 like this, is connected on the control loop of refrigerator.
Then, a seal member (not shown) is fastened on the approaching mutually part of cover of door switch 30 and inner casing 2.It is used for exchanging the cooling effect that improves in the refrigerator by the external heat that stops refrigerator, and prevents to reveal away from the foaming agent that gives off between inner casing 2 and the shell 3.
After foaming agent discharges between inner casing 2 and shell 3, the feedthrough connector 10 that is arranged in cover of door switch 30 can be taken out through the installing hole 2a of inner casing 2 by using a kind of device.
At the lower surface of door switch 20, feedthrough connector 10 is connected with terminals unit 23.The door switch 20 that forms as one with feedthrough connector 10 inserts among the installing hole 2a of inner casing 2, therefore securely the substrate 24 of door switch 20 is connected to the front surface of inner casing 2.As a result, the retainer ring 21 of door switch 20 and fixed projection 22 are fixed respectively and are supported on the rear surface of inner casing 2.Thereby finish the installation process of door open-close checkout gear.
Yet the structure of traditional door open-close checkout gear has several shortcomings, and promptly annex is separately to make, and therefore increased manufacturing cost, and assembling process is also very complicated, so just causes the working time quite long, thereby has reduced productivity ratio.
Description of drawings
With reference to the accompanying drawings, will be easier to understand the present invention, these accompanying drawings only are used for explanation, and unrestricted the present invention, wherein:
Fig. 1 is the perspective view of general refrigerator;
Fig. 2 is illustrated in and is provided with a vertical cross-section diagram under the existing door open-close checkout gear state;
Fig. 3 represents to constitute the vertical cross-section diagram of the door open-close sense switch of existing door open-close checkout gear;
Fig. 4 A represents to constitute the vertical cross-section diagram of the cover of door switch of existing door open-close checkout gear;
Fig. 4 B represents to constitute the perspective view of the cover of door switch of existing door open-close checkout gear;
Fig. 5 represents to constitute the vertical cross-section diagram of a lead-in wire connector of existing door open-close checkout gear;
Fig. 6 represents the vertical cross-section diagram of door open-close checkout gear under installment state according to the first embodiment of the present invention;
Fig. 7 represents to constitute the vertical cross-section diagram of door open-close sense switch housing of the door open-close checkout gear of first embodiment of the invention;
Fig. 8 represents to constitute the vertical cross-section diagram of door open-close sense switch of the door open-close checkout gear of the first embodiment of the present invention;
Fig. 9 represents to revise embodiment, the vertical cross-section diagram of door open-close checkout gear under installment state according to one of the present invention;
Figure 10 represents to constitute the vertical cross-section diagram of a door switch housing of the door open-close checkout gear of modification embodiment of the present invention;
Figure 11 represents to constitute the vertical cross-section diagram of a door open-close sense switch of the door open-close checkout gear of modification embodiment of the present invention;
Figure 12 represents according to another embodiment of the invention, the vertical cross-section diagram of door open-close checkout gear under installment state;
Figure 13 represents to constitute the vertical cross-section diagram of a door open-close sense switch housing of the door open-close checkout gear of an alternative embodiment of the invention; With
Figure 14 represents to constitute the vertical cross-section diagram of a door open-close sense switch of the door open-close checkout gear of an alternative embodiment of the invention.
The specific embodiment
The structure of a kind of door open-close checkout gear of the present invention is described below with reference to the accompanying drawings.
Fig. 6 represents to be equipped with the vertical cross-section diagram according to the door open-close checkout gear of the first embodiment of the present invention; Fig. 7 represents to constitute the vertical cross-section diagram of door open-close sense switch housing of the door open-close checkout gear of first embodiment of the invention; Fig. 8 represents to constitute the vertical cross-section diagram of door open-close sense switch of the door open-close checkout gear of the first embodiment of the present invention; Adopt identical label with parts identical in the prior art.
As shown in FIG., the structure of the door open-close checkout gear of the first embodiment of the present invention comprises: be cover shape a door open-close sense switch housing 100 (after this, be called for short " door switch housing "), this door switch enclosure interior has a predetermined space cell, and be installed on the rear surface of inner casing 2 with installing hole 2a, the inner surface of this door switch housing has many fixed projections 110, and in a side of this door switch housing the terminals unit 130 of lead-in wire 120 is housed, this lead-in wire 120 is electrically connected with the control loop of refrigerator; And door open-close sense switch 200, this door open-close sense switch 200 has a switching device of the open/close state that is used for detecting refrigerator doors 4, and have from the outstanding many stay hooks 220 of substrate 210, substrate 210 is close on the front surface of inner casing 2, when switch 200 inserts and is fit into the installing hole 2a of inner casing 2, the fixed projection 110 of door switch housing 100 secures the above stay hook 220, also comprises a door switch terminals unit 230 that is connected with the terminals unit 130 of housing 100 in switch 200 1 sides.
Here, door switch housing 100 comprises and forms holistic lead-in wire terminals unit 130 with it.Like this, just do not need special feedthrough connector.Thereby door switch housing 100 just plays connector, and its function resembles a lid, so that cover the door open-close sense switch 200 on the rear surface of inner casing 2.
When figure notation 40 expression covers door open-close sense switch 200 on the rear surface of inner casing 2 when door switch housing 100, door switch housing 100 is adhered to adhesive-bonded fabric on the inner casing 2.
The installation process of the door open-close checkout gear of the first embodiment of the present invention is described below.
At first, adhesive-bonded fabric 40 is adhered to the front surface of door switch housing 100.After this, door switch housing 100 is bonded in around the installing hole 2a of rear surface of inner casing 2, and covers installing hole 2a.
After bonding door switch housing 100, between inner casing 2 and shell 3, discharge foaming agent, and door open-close sense switch 200 inserts in the installing hole 2a of inner casing 2.
When inserting door open-close sense switch 200, the projection 110 of door switch housing 100 is fixed the stay hook 220 of inner casing 2, and the terminals unit 230 of door open-close sense switch 200 is connected with the terminals unit 130 of door switch housing 100 simultaneously.
Here, for the position of door switch housing 100 is set accurately, door switch housing 100 has the diameter identical with the installing hole 2a of inner casing 2, thereby door switch housing 100 correspondingly is adhered on the installing hole 2a, so just can accurately locate.
On the other hand, with reference now to Fig. 9,10,11 illustrate the door open-close checkout gear of modification embodiment of the present invention.
Fig. 9 represents according to modification embodiment of the present invention, the vertical cross-section diagram of door open-close checkout gear under installment state; Figure 10 represents to constitute the vertical cross-section diagram of door switch housing of the door open-close checkout gear of modification embodiment of the present invention; Figure 11 represents to constitute the vertical cross-section diagram of a door open-close sense switch of the door open-close checkout gear of modification embodiment of the present invention;
As shown in FIG., the structure with the door open-close checkout gear of the first embodiment of the present invention is identical basically for the structure of the door open-close checkout gear of modification embodiment of the present invention.Therefore, be not described in detail same section, revise part and only describe.
According to the first embodiment of the present invention, on the inner surface of the fixed cell of door switch housing 100, many fixed projections 110 have been formed.According to modification embodiment of the present invention, form a fixed projection 310 in a side of an inner surface of door switch housing 300.
Therefore, in the fixed cell of door open-close sense switch 400,, on substrate 410, form stay hook 420 highlightedly for fixing by the fixed projection 310 of door switch 300.In addition, form projection 430 in a side of door open-close sense switch 400, this projection 430 is inserted among the installing hole 2a of inner casing 2 and supports and be fixed in the inner casing 2.
As mentioned above, according to modification embodiment of the present invention, door open-close sense switch 400 inserts the installing hole 2a of inner casing 2, and is fixed together with door switch housing 300.In addition, identical at modification embodiment of the present invention with its first embodiment.Fitting operation is also identical in addition.So just no longer be described.
On the other hand, with reference to Figure 12,13,14 illustrate the door open-close checkout gear of an alternative embodiment of the invention.
Figure 12 represents according to another embodiment of the invention, the vertical cross-section diagram of door open-close checkout gear under installment state.Figure 13 represents to constitute the vertical cross-section diagram of a door open-close sense switch housing of the door open-close checkout gear of an alternative embodiment of the invention.Figure 14 represents to constitute the vertical cross-section diagram of a door open-close sense switch of the door open-close checkout gear of an alternative embodiment of the invention.
As shown in FIG., the structure of the door open-close checkout gear of an alternative embodiment of the invention comprises: be a door open-close sense switch housing 500 (after this being called for short " door switch housing ") that covers shape, these door switch housing 500 inside have a predetermined space cell, this door switch housing 500 is contained on the rear surface of the inner casing 2 with installing hole 2a, and the lower surface in the inboard of this door switch housing be provided with one with the lead-in wire 510 terminals unit 520 that are connected; And door open-close sense switch 600, this door open-close sense switch 600 has a switching device that is used for detecting the open/close state of refrigerator doors 4, this door open-close sense switch is provided with when the installing hole 2a that passes inner casing 2 inserts and install, tightly be bonded in a double-basis plate 610 on the front surface of inner casing 2, also comprise the switch terminal unit 620 that is connected with the terminals unit 520 of door switch housing 500 in a side of the lower surface of switch 600.
Here, the terminals unit 520 of door switch housing 500 connected to one another and the switch terminal unit of door open-close sense switch 600 620 form and protrude shape and concave shape, thereby prevent 600 disengagements of door open-close sense switch.In addition, the interference when connecting for reducing terminals unit 520,620, the coupling part forms curve shape.
The installation process of door open-close checkout gear is described now according to another embodiment of the invention.
Adhesive-bonded fabric 40 is bonded on the front surface of door switch housing 500.After this, door switch housing 500 closely be bonded in inner casing 2 the rear surface installing hole 2a around, and cover installing hole 2a.
When bonding door switch housing 500, between inner casing 2 and shell 3, give off foaming agent.Door open-close sense switch 600 inserts the installing hole 2a of inner casing 2, and at this moment, the upper surface of door open-close sense switch 600 links to each other with the upper part of the installing hole 2a of inner casing 2.
When inserting door open-close sense switch 600, and when the substrate 610 of door open-close sense switch 600 closely was bonded in the front surface of inner casing 2 like this, door open-close sense switch 600 was pushed downwards.
When door open-close sense switch 600 was shifted lower position onto, the terminals unit 620 of door open-close sense switch 600 connected and is fixed on the terminals 520 of door switch housing 500, has finished the installation of door open-close checkout gear like this.
Here, the terminals 520 of door switch housing 500 and the terminals 620 of door open-close sense switch 600 correspondingly form and protrude shape and concave shape, therefore stop door open-close sense switch 600 to move, and keep the connection status of terminals 520 and 620.
On the other hand, do not need special device, the user just can change and repair door open-close sense switch 600 easily, and method is by double-basis plate 610 upwards being promoted and carrying out replacing or the repair operation opposite with the fitting operation program.
As discussed, according to the structure of door open-close checkout gear of the present invention, installation process is simplified, thereby causes manufacturing cost to descend, and it is convenient to install, and the working time reduces, thereby causes productivity ratio to improve.
Under the prerequisite that does not exceed essence of the present invention or fundamental characteristics; the present invention has the multiple form of expression; will also be understood that; except as otherwise noted; the foregoing description is not limited to aforementioned any details; and in the essence and scope that should be included in claims widely and limited, therefore satisfy any change in claims requirement and the gauge and the equivalency range of modification or these changes and modification and be included in the protection domain of claims.