CN111550968A - Cable routing mechanism and refrigerator with the same - Google Patents

Abstract

The invention provides a cable routing mechanism and a refrigerator. The cable routing mechanism is used to realize the electrical connection between a drawer-type door and a box body, and electrical components are arranged on the drawer-type door; the cable routing mechanism includes a fixed An installation box in the compartment, a cable for supplying power to the electrical components, and a towline for accommodating part of the cable, one end of the towline is plugged and fixed on the installation box, and the other end of the towline One end is used to connect to the drawer-type door and move forward and backward with the drawer-type door. The cable routing mechanism effectively avoids the deformation and damage of the cables through the towline, and ensures the stable electrical connection between the drawer-type door and the compartment, and one end of the towline is directly plugged and fixed on the installation box, which is convenient. On-site assembly, beautiful structure, reliable work.

Description

Cable routing mechanism and refrigerator with the same

technical field

The invention relates to the technical field of refrigeration equipment, in particular to a wire routing mechanism and a refrigerator having the wire routing mechanism.

Background technique

Nowadays, domestic and foreign markets have put forward higher and higher demands on the volume, appearance and operation convenience of refrigerator products. More and more refrigerators are equipped with touch screens or other electrical components on the door body. In order to enhance the appearance of the refrigerator and realize the corresponding function. Existing pivoting door bodies mostly realize the power transmission on the door body by arranging corresponding cables on the hinge shaft; as for the drawer-type door body, it is necessary to provide a movable door body that can move with the push-pull movement of the drawer-type door body. cables to achieve the power supply of the aforementioned electrical components. Due to the small gap between the corresponding drawer box and the inner wall of the box, the cable is more likely to be entangled with other components, wear, and even break and fail.

In view of the above problems, the industry has disclosed a solution in which a connecting rod assembly is arranged between the box body of the refrigerator and the drawer door body, and the cable is connected to the door body from the side of the box body along the corresponding connecting rod assembly. The bending deformation position of the rod assembly itself is subject to large stress, and the connecting rod assembly itself will wear out and fail when it is repeatedly operated, which affects the operating experience of the drawer door body. A cable routing mechanism is also disclosed in the industry. By arranging a fixing frame and a supporting frame on the inner wall of the box and the rear side of the drawer-type door body, respectively, a guide hole is formed on the fixing frame, and the cable runs from the fixing frame and the inner wall to the space through the guide hole. It extends indoors, and then extends toward the drawer door body through the wire box fixed on the support frame. The above-mentioned cable routing mechanism is still difficult to form an effective limit constraint on the movable part of the cable, and this part of the cable may still interfere with the slide rail or other components, and then be squeezed and worn, affecting the electrical components on the drawer door body. Work.

In view of this, it is necessary to provide a new wire routing mechanism and a refrigerator having the same.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a cable routing mechanism and a refrigerator having the cable routing mechanism, which can better avoid cable damage, and has a beautiful structure and reliable operation.

In order to achieve the above purpose of the invention, the present invention provides a wiring mechanism to realize the electrical connection between a drawer-type door and a box body, the box body is formed with a compartment that is open to the front, and the drawer-type door body is formed. The compartment can be moved in the front-rear direction to open or close the compartment, and the drawer-type door body is provided with electrical components; the wiring mechanism includes a mounting box for fixing in the compartment, and wires for supplying power to the electrical components. A cable and a drag chain for accommodating part of the cable, one end of the drag chain is plugged and fixed on the installation box, and the other end of the drag chain is used to connect to the drawer door body and follow the drawer door The body moves back and forth together.

As a further improvement of the present invention, one end of the drag chain is inserted and fixed on the rear side of the installation box along the front-rear direction.

As a further improvement of the present invention, the drag chain includes a plurality of chain links connected in sequence, the chain links have two clamp plates oppositely arranged left and right, and two ends of the clamp plates are respectively formed with connecting holes and connecting columns.

As a further improvement of the present invention, the installation box has a front wall, a rear wall and a cover plate connected between the front wall and the rear wall, and the rear wall also protrudes forward to form a matching The drag chain is inserted between the matching plate and the cover plate.

As a further improvement of the present invention, the matching plate and the cover plate protrude oppositely to form a pair of plug-in posts, and the plug-in posts cooperate with the connection holes to realize the connection between the drag chain and the installation box.

As a further improvement of the present invention, the rear side of the plug-in column is formed with a guide surface that is inclined and extended backward, and the guide surfaces respectively formed on the group of plug-in columns are opposite to each other and the distance between them gradually increases from front to back .

As a further improvement of the present invention, a pair of insertion holes are formed on the matching plate and the cover plate opposite to each other, and the insertion holes cooperate with the connecting column to realize the connection between the drag chain and the installation box.

As a further improvement of the present invention, a position-limiting protrusion is also protruded along the vertical direction between the matching plate and the cover plate.

As a further improvement of the present invention, the installation box is made of elastic insulating material.

The present invention also provides a refrigerator, comprising a box body and a drawer-type door body, wherein the box body is formed with a compartment that is opened toward the front, and the drawer-type door body can move in the front-rear direction to open or close the compartment, The drawer-type door body is provided with electrical components; the refrigerator also includes a sliding rail wiring machine as described above.

The present invention also provides a cable routing mechanism, which includes a set of slide rail assemblies arranged opposite to left and right, the slider rail assemblies have a fixed rail and a moving rail that can move forward and backward relative to the fixed rail, and the cable routing mechanism includes an installation box , cable and a towline that accommodates part of the cable, the position of the installation box relative to the fixed rail is kept fixed, one end of the towline is plugged and fixed on the installation box, and the other end of the towline is fixed on the installation box. One end is connected to the moving rail and moves back and forth with the moving rail.

As a further improvement of the present invention, one end of the drag chain is inserted and fixed on the rear side of the installation box along the front-rear direction.

The present invention also provides a refrigerator, which includes a box body, a drawer-type door body and the above-mentioned wiring mechanism, wherein the box body is formed with a compartment which is opened toward the front, and the drawer-type door body can be arranged in the front-rear direction. Move to open or close the compartment, the compartment has two side walls that are opposite to each other, and the drawer door body is provided with electrical components; the fixed rail is fixed on the side wall, and the moving rail It is connected to the drawer-type door, so that the drag chain moves back and forth together with the drawer-type door.

Beneficial effects of the present invention: By adopting the cable routing mechanism and the refrigerator of the present invention, the cables are effectively protected by the drag chains whose ends are respectively connected in the compartment and on the drawer door, so as to prevent the cables from jumping to the drawer box and the side walls. The drag chain can also control the bending degree of the cable, avoid stress damage caused by excessive bending and deformation, improve the service life of the cable, and ensure the normal operation of the electrical components on the drawer door body. In addition, one end of the drag chain is directly plugged and fixed on the installation box, which is convenient for on-site assembly and has a beautiful and reliable structure.

Description of drawings

Fig. 1 is the overall schematic diagram of the refrigerator of the present invention;

Fig. 2 is the structural schematic diagram of the wiring mechanism of the present invention;

FIG. 3 is a schematic structural diagram of another angle of the wiring mechanism of FIG. 2;

4 is a schematic exploded view of a part of the structure of the wiring mechanism of the present invention;

Fig. 5 is the structural schematic diagram of the support frame of the wiring mechanism of the present invention;

6 is a schematic structural diagram of a link in the drag chain of the cable routing mechanism of the present invention;

7 is a schematic structural diagram of the fixing box of the wiring mechanism of the present invention;

FIG. 8 is a schematic structural diagram of another angle of the fixing box in FIG. 7;

FIG. 9 is a schematic structural diagram of the installation box of the wiring mechanism of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, this embodiment does not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to this embodiment are all included in the protection scope of the present invention.

As shown in FIG. 1 , the refrigerator 100 provided by the present invention includes a box body 10 and a drawer-type door body 20 disposed on the front side of the box body 10 , and the box body 10 is formed with a compartment 11 that is opened toward the front; the drawer The door body 20 can be moved in the front-rear direction to open or close the compartment 11 .

The compartment 11 has two side walls 111 opposite to the left and right; the drawer-type door body 20 is provided with electrical components, and the electrical components may be the touch display screen 21 . The rear side of the drawer door 20 is also provided with a drawer box 30 for storing articles, the drawer box 30 moves together with the drawer door 20, and the drawer box 30 is preferably detachable, that is, when After the drawer-type door 20 is opened, the drawer box 30 can be taken out individually.

As shown in FIG. 2 and FIG. 3 , the refrigerator 100 further includes a wiring mechanism 40 for realizing the electrical connection between the drawer-type door 20 and the box 10 . The cable routing mechanism 40 includes a fixed frame 41 installed in the compartment 11 , a support frame 42 fixed on the rear side of the drawer door 20 , and a slide rail assembly 43 disposed between the support frame 42 and the fixed frame 41 . In other words, the wire routing mechanism 40 is also used to realize the front and rear movement of the drawer door 20 and the drawer box 30 relative to the compartment 11 . The fixing brackets 41 are arranged in a set opposite to left and right and are respectively fixedly installed on the aforementioned two side walls 111 of the compartment 11 ; the supporting brackets 42 are also arranged in a set and slide with the fixing bracket 41 through the corresponding slide rail assembly 43 connected, the support frame 42 is used to carry the drawer box 30; the slide rail assembly 43 includes a fixed rail fixed on the side wall 111 and a movable rail that can move back and forth relative to the fixed rail.

Referring to FIG. 4 , the slide rail assembly 43 is preferably configured as a three-stage slide rail, and the slide rail assembly 43 includes a first slide rail 431 , a first slide rail 431 , a first slide rail 431 , a side fixed to the fixing frame 41 facing the inner side of the compartment 11 , A second slide rail 432 slidably matched with the first slide rail 431 , and a third slide rail 433 slidably matched with the second slide rail 432 and fixed to the support frame 42 . Here, the first sliding rail 431 is the aforementioned fixed rail; the third sliding rail 433 is the aforementioned moving rail.

The cable routing mechanism 40 further includes a cable 44 for supplying power to the touch display screen 21 and a drag chain 45 for accommodating a part of the cable 44 . Two ends of the cable 44 are respectively connected with a first connector 441 and a second connector 442 , and the first connector 441 is used for connecting with a box-side electrical connector (not shown) in the compartment 11 . Oppositely, the second connector 442 is used to connect with a door-side electrical connector (not shown) connected to the electrical component. One end of the towline 45 is fixed inside the compartment 11 , and the other end of the towline 45 is connected to the drawer door 20 and moves back and forth together with the drawer door 20 . One end is connected to the aforementioned support frame 42 . In actual production, the towline 45 can be directly fixed on the predetermined position of the support frame 42 by screws or the like, or a fixing structure adapted to the end of the towline 45 can be formed on the support frame 42 to realize the fixation of the two. Install. Preferably, the drag chain 45 is connected to the side of the support frame 42 facing the interior of the compartment 11 .

Here, the cable routing mechanism 40 further includes a fixing box 46 mounted on the support frame 42 and a mounting box 47 mounted in the compartment 11 , and the rear end of the drag chain 45 is connected to the mounting box 47 , and the front end of the drag chain 45 is connected to the rear side of the fixing box 46 . It should be noted that the rear end and the front end of the drag chain 45 are not strictly limited to the positions of the two ends of the drag chain 45, but are only defined for the convenience of description. In other words, when the drawer-type door body 20 is moving, the front end of the drag chain 45 may be located behind the rear end of the drag chain 45 .

The fixing frame 41 includes a main body portion 411 abutting on the side wall 111 , a first extending portion 412 and a second extending portion 413 formed by folding and extending from the upper and lower side edges of the main body portion 411 toward the interior of the compartment. . The main body portion 411 is provided with at least two fixing holes 414 arranged at intervals to realize the fixed installation of the fixing frame 41 and the side wall 111 ; the first extension portion 412 and the second extension portion 413 protrude upward and downward respectively A first holding arm 415 and a second holding arm 416 are formed for holding the aforementioned first slide rail 431 , and a limit arm 417 extending obliquely from front to rear is formed on the main body portion 411 to limit the aforementioned first slide rail 431 Jump forward after assembly is complete.

In addition, a rack 418 extending front and rear is formed on the upward side surface of the second extending portion 413 , and the rack 418 is located on the side of the second holding arm 416 away from the main body portion 411 . The cable routing mechanism 40 further includes a balance assembly 48. The balance assembly 48 includes a pair of gears 481 rotatably connected to the rear ends of the two support frames 42 respectively. The 418 rolls back and forth. The balance assembly 48 further includes a balance rod 482 extending horizontally from left to right and connected between a pair of gears 481 . When the drawer-type door body 20 pushes and pulls the support frame 42 and moves forward and backward, the balance assembly 48 can ensure that the left and right opposite support frames 42 move synchronously, and the operation is smoother. In addition, a stop portion 419 is formed at the rear end of the fixing frame 41 to prevent the slide rail assembly 43 from exceeding the predetermined position when assembled from front to rear; and a guiding structure is also formed at the front end of the fixing frame 41. The guiding structure specifically includes an inclined surface or a curved surface formed on the front sides of the main body portion 411 , the first extending portion 412 and the second extending portion 413 and extending toward the side wall 111 corresponding to the fixing frame 41 to facilitate assembly.

With reference to FIG. 5 , the support frame 42 has a fixing portion 421 fixed with the third sliding rail 433 , and a bearing portion 422 located above the fixing portion 421 . The fixing portion 421 is provided with at least two installation holes 423 arranged at intervals in the front and rear for installing the third slide rail 433 ; the aforementioned gear 481 is specifically installed at the rear end of the fixing portion 421 . The bearing portion 422 is first bent toward the interior of the compartment 11 from the fixing portion 421 , and then extends upward to a height beyond the aforementioned fixing frame 41 , and then bends and extends toward the side wall 111 corresponding to the supporting frame 42 to cover it. The fixing frame 41 below. The bearing portion 422 is further provided with a limiting hole 424 adapted to the aforementioned drawer box 30 , so that when the drawer box 30 is placed downward and pressed against the surface of the bearing portion 422 , the position is more stable. In addition, the bearing portion 422 and the aforementioned first extension portion 412 are arranged to maintain a gap, so as to avoid scraping and wear of the fixing frame 41 during the moving process of the support frame 42 .

In addition, what needs to be paid attention to is the structural design of the support frame 42 on the side corresponding to the aforementioned cables 44 and drag chains 45 . In the connection part 426 between the fixing part 421 and the installation part 425 , both the installation part 425 and the connection part 426 are also arranged to maintain a gap with the second extension part 413 . The mounting portion 425 is disposed adjacent to the front end of the support frame 42 , and the fixing box 46 is fixedly mounted on the mounting portion 425 . The front side of the connecting portion 426 is bent toward the fixing frame 41 to form a folded plate 4261 . The folded plate 4261 can prevent sundries from falling in to a certain extent and make the structure more beautiful.

The installation portion 425 forms an installation space open to the inner side of the compartment 11 in the lateral direction. The installation portion 425 has a top plate 4251 , a bottom plate 4252 and a side plate 4253 connecting the top plate 4251 and the bottom plate 4252 . The height between the top plate 4251 and the bottom plate 4252 matches the fixing box 46 and both are provided with a first bayonet 4254. Preferably, the top plate 4251 and the bottom plate 4252 are respectively provided with at least two front and rear spacers The aforementioned first bayonet 4254 is provided. The side plate 4253 is provided with a second bayonet 4255 . The edge of the bottom plate 4252 is also recessed toward the side wall 111 corresponding to the support frame 42 to form a positioning groove 4256 , which is more convenient for the installation of the fixing box 46 . The front and rear extension length of the bottom plate 4252 is not less than the length of the fixed box 46, and the lengths of the two are preferably approximately equal, which can not only meet the stable installation requirements of the fixed box 46, but also prevent the bottom plate 4252 from affecting the connection to the fixed box 46. The bending deformation of the drag chain 45 on the fixing box 46 .

Generally, the drag chain 45 includes several chain links 451 connected in sequence. Referring to FIG. 6 , each of the chain links 451 has two clamping plates 4511 disposed opposite to each other, and two baffle plates 4512 connecting the two clamping plates 4511 . The clamping plates 4511 and the baffle plates 4512 are jointly formed to accommodate the cables 44 . 's cavity. Preferably, at least one of the first connector 441 and the second connector 442 can pass through the cavity to facilitate actual production and assembly. Of course, the size of the drag chain 45 can also be reduced, so that the aforementioned cavity is adapted to the outer diameter of the cable 44, thereby improving the aesthetics of the drag chain 45 and saving installation space, but the cable The cable 44 passes through the drag chain 45, and then the corresponding first connector 441 and the second connector 442 are connected.

The two ends of the splint 4511 are respectively provided with a connecting hole 4513 and a connecting column 4514. The connecting hole 4513 and the connecting column 4514 are respectively connected with the connecting column 4514 and the connecting hole in the chain link 451 adjacent to the corresponding side. 4513 are butted together, so that the adjacent chain links 451 can rotate with each other along the axial direction of the connecting hole 4513 and the connecting column 4514 . Generally, the connection hole 4513 and the connection column 4514 are respectively set as a circular hole and a cylinder, and in order to keep the adjacent chain links 451 free to move, the distance between the two splints 4511 on one side of the connection hole 4513 is larger than that of the connection The distance between the two clamping plates 4511 on one side of the column 4514.

Due to the limited space between the drawer box 30 and the side wall 111 , the drag chain 45 is preferably bent and folded in the height direction, that is, the connecting holes 4513 and the connecting posts 4514 of the links 451 in the drag chain 45 are Set horizontally to the left and right. In this embodiment, in order to reasonably reduce the installation lengths of the cables 44 and the drag chains 45 and the corresponding material costs, the installation box 47 is preferably arranged at a position adjacent to the opening of the compartment 11 . Further, the installation box 47 is located below the fixing frame 41 and is arranged with a gap from the supporting frame 42 .

The fixing box 46 is disposed adjacent to the front end of the support frame 42. In order to prevent the drag chain 45 from being exposed to the outside when the drawer door 20 is pulled open, the side plate 4253 of the mounting portion 425 will continue beyond the aforementioned mounting space. Extend to the rear end of the support frame 42 . At the same time, the support frame 42 also protrudes toward the interior of the compartment 11 to form a support protrusion 427 , and the support protrusion 427 is preferably arranged at the middle position of the support frame 42 in the front-rear direction, and the rear end of the fixed box 46 The supporting protrusions 427 are spaced apart from each other. The intermediate position described here is not strictly limited to the midpoint position of the support frame 42 , and may also be a position near the midpoint of the support frame 42 along the front-rear direction. When the drawer-type door 20 is pulled out, the support protrusions 427 can prevent part of the chain links 451 of the drag chain 45 from hanging down beyond the support frame 42, which affects the appearance; when the drawer-type door 20 is retracted Even in the closed state, the supporting protrusions 427 will not affect the deformation and folding of the drag chain 45 . In addition, the side plate 4253 extends backward beyond the support protrusion 427 , and the support protrusion 427 is formed by folding and extending the lower edge of the side plate 4253 toward the inside of the compartment. The support protrusions 427 are preferably provided here as plate-like structures that can support and limit the drag chain 45 . Further, the bottom plate 4252 can also be set to extend backward to the vicinity of the middle position of the corresponding support frame 42, that is, the back half of the bottom plate 4252 can realize the function of the aforementioned supporting protrusion 427, and in this case, it is unnecessary to The aforementioned supporting protrusions 427 are additionally provided to meet product assembly requirements.

7 and FIG. 8, the fixing box 46 and the support frame 42 are clamped and fixed to each other, and the fixing box 46 is provided with an opening laterally toward the side of the mounting portion 425, so as to facilitate the second Installation of the connector 442 and the electrical connector on the door body side. The rear end of the fixing box 46 is provided with a first plug-in port 461, and the fixing box 46 is preferably made of elastic insulating material, such as organic resin, plastic, etc., so that the front end of the drag chain 45 can be inserted through the plug-in card. It is fixed to the first socket 461 in a holding manner, and at the same time, it is convenient for the fixed installation of the fixing box 46 and the support frame 42 .

Specifically, the fixing box 46 includes a top wall 462 and a bottom wall 463 which are arranged opposite to each other, and a connecting wall 464 connecting the top wall 462 and the bottom wall 463 . The upper surface of the top wall 462 and the lower surface of the bottom wall 463 are respectively formed with fixing blocks 4621 and 4631 which are fixed with the first bayonet 4254 on the top plate 4251 and the bottom plate 4252. The fixing blocks 4621 , 4631 are set in a wedge shape. During the installation process of the fixing box 46, the fixing blocks 4621 and 4631 are first pressed and deformed by the aforementioned top plate 4251 and the bottom plate 4252, and continue to slide until the fixing blocks 4621, 4631 and the first A bayonet 4254 is clamped and fixed.

A receiving cavity 465 for receiving the second connector 442 and the electrical connector on the door body side is also formed in the middle position of the fixing box 46 in the front-rear direction. As a result, the fixing blocks 4621 and 4631 are offset from the receiving cavity 465 in the front-rear direction. Preferably, two of the fixing blocks 4621 and 4631 are provided and located on the front and rear sides of the receiving cavity 465 respectively. Here, in order to reduce the elastic requirement of the material of the fixing box 46 itself in a low temperature environment, the top wall 462 is further formed with a first strip-shaped groove 4622 on the side of the fixing block 4621. The first strip-shaped groove The 4622 are arranged in pairs, and a first elastic wall 4623 is formed between the first strip-shaped grooves 4622 in the same group. Similarly, the bottom wall 463 is also formed with a second strip-shaped groove 4632 on the side of the fixing block 4631 , and the fixing block 4631 is formed on the lower surface of the corresponding second elastic wall 4633 .

The fixing box 46 further includes a holding wall 466 formed at the rear end of the top wall 462 or the bottom wall 463 . The aforementioned first socket 461 is formed. A holding block 4661 is formed on the holding wall 466 facing back and in a direction away from the connecting wall 464 . The holding block 4661 and the aforementioned second bayonet 4255 are mutually clamped and fixed to further enhance the stability of the holding box 46 . sex. In addition, the bottom wall 463 of the fixing box 46 also protrudes downward to form a positioning block 4634 . Of course, the aforementioned positioning grooves 4256 can also be disposed at the junction of the aforementioned top plate 4251 and the connecting portion 426 . In this case, a corresponding positioning mechanism needs to be protruded on the top wall 462 of the fixing box 46 , which will not be repeated here.

The connecting wall 464 and the holding wall 466 are also oppositely formed with a plug-in structure which is matched with the connecting hole 4513 or the connecting column 4514 of a chain link 451 at the front end of the drag chain 45 . Here, the holding wall 466 is fixedly connected to the bottom wall 463 , and the upper end of the holding wall 466 is separated from the top wall 462 , so that the first plug port 461 is inserted into the drag chain 45 during the plugging process. The center is laterally expanded and deformed, which is convenient for assembly. The connecting wall 464 and the holding wall 466 are formed with a set of oppositely disposed plug bosses 467 on one side of the connecting wall 464 and the holding wall 466 facing the first plug port 461 . The distance between the two splints 4511 is matched, the plugging boss 467 is provided with a plugging hole 4671 which is matched with the connecting column 4514, and the plugging boss 467 is also formed with a guide extending obliquely backward. Reference 4672. The guide surfaces 4672 respectively formed on the set of socket bosses 467 are disposed opposite to each other, and the distance between them gradually increases from front to back. , in the process of sliding and plugging forward, the connecting post 4514 and the plugging boss 467 are pressed against each other, the holding wall 466 is deformed to the side away from the connecting wall 464, and at the same time, the two splints of the chain link 451 are The distance between 4511 is also reduced, until the connecting post 4514 slides into the insertion hole 4671 , the retaining wall 466 and the chain link 451 return to their original state respectively, completing the insertion of the front end of the drag chain 45 . In order to avoid the misalignment of insertion, the first insertion port 461 is also formed with a position-limiting protrusion. Bit bump 4635. The first limiting protrusion 4635 can abut with a baffle plate 4512 on the lower side of the aforementioned chain link 451, so as to prevent the drag chain 45 from being inserted too deep, causing the connecting post 4514 to be separated from the insertion hole 4671, and even causing the drag chain 45 to be detached. Or deformation of the retaining wall 466 is damaged.

In addition, blocking ribs 468 are formed on the front and rear sides of the accommodating cavity 465. The blocking ribs 468 can not only ensure the structural strength of the accommodating cavity 465, but also protect the second connector 442 and the door body contained therein. The side electrical connector realizes an effective front and rear limit to avoid the front and rear displacement or phase separation of the two. The inside of the receiving cavity 465 is also formed with a convex rib 469 extending along the inner surface of the top wall 462 , and/or the connecting wall 464 , and/or the bottom wall 463 . The structure is strengthened, and the second connector 442 and the door-side electrical connector that are butted to each other can also be held and positioned.

Referring to FIG. 9 , the installation box 47 is directly fixed with the aforementioned side wall 111 , and the installation box 47 is formed with a second socket 471 which is opened backwards, and the second socket 471 is used for connecting with the aforementioned drag chain. The rear ends of 45 are plug-fitted with each other. Here, the installation box 47 has a first part located between the support frame 42 and the side wall 111 and a second part located below the support frame 42 , that is, the cross section of the installation box 47 along the front-rear direction as a whole is In an inverted L shape, the second socket 471 is formed at the rear end of the second part. The cable 44 drawn out from the second plug port 471 extends backward with the drag chain 45 and then forwards to achieve 180° bending, and then continues to extend into the fixing box 46 . The drag chain 45 itself has a minimum bending radius due to the restriction of the adjacent chain links 451, that is to say, the drag chain 45 can well limit the bending deformation angle of the cable 44, so as to avoid the cable 44 is damaged by excessive bending and deformation; and the extension of the cable 44 between the fixing box 46 and the installation box 47 is completely accommodated in the drag chain 45, which can well prevent the cable 44 from being squeezed by jumping. pressure wear.

Preferably, in order to reduce the stress generated by the drag chain 45 in the transverse direction, the first socket 461 and the second socket 471 are arranged flush with each other in the left and right directions. The first socket 461 is higher than the second socket 471, and considering the minimum bending radius of the drag chain 45, the height difference between the first socket 461 and the second socket 471 in the height direction is preferably not less than Twice the minimum bending radius of the drag chain 45.

The installation box 47 has a front wall 472, a rear wall 473 and a cover plate 474 connected between the front wall 472 and the rear wall 473. The installation box 47 is also made of elastic insulating material. The rear wall 472 is formed with a mating plate 475 extending forward adjacent to the second insertion port 471 , and a pair of mating plates 475 and the cover plate 474 facing the second insertion port 471 are protruded opposite to each other to form a pair of mating plates 475 . The insertion post 476 is matched with the connection hole 4513 of the rearmost link 451 of the drag chain 45 . Wherein, for the aforementioned pair of the inserting posts 476 , the rear side of the inserting posts 476 is formed with a guide surface 4761 which is inclined and extends backward. The guide surfaces 4761 respectively formed on the set of inserting posts 476 are arranged opposite to each other and the distance between them gradually increases from front to back. During the connection process, the clamping plate 4511 and the plug-in post 476 are pressed against each other, the matching plate 475 is deformed to the side away from the cover plate 474, and at the same time, the distance between the two clamping plates 4511 of the chain link 451 is also squeezed When the insertion column 476 slides into the connection hole 4513 , the matching plate 475 and the chain link 451 return to their original state respectively, and the rear end of the drag chain 45 is plugged in. In order to avoid the misalignment of insertion, the second insertion port 471 is also formed with a limiting protrusion. The limiting protrusion 4711 can abut with a baffle plate 4512 on the upper side of the aforementioned chain link 451 to prevent the drag chain 45 from being inserted too deep, causing the connection hole 4513 to be detached from the insertion post 476 , and even causing the drag chain 45 or the matching plate 475 deformation damage.

With reference to the structure description of the first plug port 461, it is conceivable that the matching structures of the first plug port 461, the second plug port 471 and the drag chain 45 can be replaced with each other, that is, the first plug port 471 can be replaced with each other. 461 is provided with an inserting post (not shown) that matches with the connecting hole 4513 of the chain link 451, and an inserting protrusion matched with the connecting post 4514 of the chain link 451 is arranged in the second inserting port 471 table and socket (not shown).

The installation box 47 is also provided with a limiting member 477 for limiting the position of the cable 44. The limiting member 477 can generally be configured as a plate-shaped, column-shaped or hook-shaped protruding mechanism, which can effectively limit the cable. 44 jumps in the installation box 47 to prevent the first connector 441 from being detached from the box-side electrical connector.

The installation box 47 is also formed with a closed installation area 478 , the cover plate 474 is provided with an opening 4741 at a position corresponding to the installation area 478 , and the installation box 47 and the compartment 11 are realized through the opening 4741 . The fixed installation of the side wall 111 can effectively prevent the moisture in the compartment 11 from invading the thermal insulation layer of the box 10 . Here, a fixing protrusion 4742 is also formed below the cover plate 474 for connecting with the inner wall of the compartment 11 or a shelf (not shown) provided in the compartment 11 . fixed, further enhancing the structural stability of the installation box 47 . Furthermore, the installation box 47 is also formed with an installation cavity 479 for arranging the electric control components at the position adjacent to the front wall 472, for example, a sensor for sensing whether the drawer-type door 20 is closed can be fixed in the installation cavity 479. Placed in cavity 479.

In addition, a corresponding door body supporting iron (not shown) is also fixed on the rear side of the drawer-type door body 20 , and the door body supporting iron is fixed to the supporting frame 42 by screws. In other embodiments of the present invention, the aforementioned door support iron and the support frame 42 can also be designed to be integrated, and then fixed to the drawer-type door 20 .

To sum up, the present invention realizes the front and rear movement of the drawer-type door 20 of the refrigerator 100 in the compartment 11 and the stable electrical connection between the drawer-type door 20 and the box 10 through the aforementioned wiring mechanism 40 . The part of the cable 44 located between the fixing box 46 and the installation box 47 is completely accommodated in the drag chain 45, which effectively protects the cable 44 and prevents the cable 44 from being squeezed, Deformation and damage can effectively ensure that the electrical components on the drawer-type door body 20 work normally. In addition, the structure design of the aforementioned wiring mechanism 40 is more reasonable, easy to install, beautiful and reliable.

It should be understood that although this specification is described in terms of embodiments, not every embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole, and each The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Changes should all be included within the protection scope of the present invention.

Claims (13)

1. The utility model provides a walk line mechanism for realize the electric connection of drawer type door body and box, the box is formed with the compartment that sets up towards the opening, the drawer type door body can move in order to open or close this compartment along the fore-and-aft direction, be equipped with electric component on the drawer type door body, its characterized in that: the wiring mechanism comprises a mounting box used for being fixed in a compartment, a cable used for supplying power to the electrical component and a drag chain used for accommodating part of the cable, one end of the drag chain is inserted and fixed on the mounting box, and the other end of the drag chain is used for being connected to the drawer type door body and moving back and forth along with the drawer type door body.

2. The routing mechanism of claim 1, wherein: one end of the drag chain is inserted and fixed at the rear side of the mounting box along the front-rear direction.

3. The routing mechanism of claim 1, wherein: the tow chain includes a plurality of chain links that meet in proper order, the chain link has two splint of controlling relative setting, the both ends of splint are formed with connecting hole and spliced pole respectively.

4. The routing mechanism of claim 3, wherein: the mounting box is provided with a front wall, a rear wall and a cover plate, wherein the front wall and the rear wall are arranged in a front-back opposite mode, the cover plate is connected and arranged between the front wall and the rear wall, the rear wall is further formed into a matching plate in a protruding mode forwards, and the drag chain is inserted between the matching plate and the cover plate.

5. The routing mechanism of claim 4, wherein: the matching plate and the cover plate oppositely protrude to form a pair of inserting columns, and the inserting columns are matched with the connecting holes to realize the connection of the drag chain and the mounting box.

6. The routing mechanism of claim 5, wherein: the rear side of the insertion columns is provided with guide surfaces which are obliquely and extendedly arranged backwards, and the guide surfaces respectively formed on the group of insertion columns are oppositely arranged and the distance between the guide surfaces is gradually increased from front to back.

7. The routing mechanism of claim 4, wherein: the matching plate and the cover plate are oppositely formed with a pair of insertion holes, and the insertion holes are matched with the connecting columns to realize the connection of the drag chain and the mounting box.

8. The routing mechanism of claim 4, wherein: and a limiting bulge is formed between the matching plate and the cover plate in a protruding mode along the vertical direction.

9. The routing mechanism of claim 1, wherein: the mounting box is made of elastic insulating materials.

10. The refrigerator comprises a refrigerator body and a drawer type door body, wherein a chamber which is opened forwards is formed in the refrigerator body, the drawer type door body can move along the front-back direction to open or close the chamber, and an electric component is arranged on the drawer type door body, and the refrigerator is characterized in that: the refrigerator further comprises the routing mechanism according to any one of claims 1 to 9.

11. The utility model provides a walk line mechanism, includes the relative a set of slide rail set spare that sets up about, slide rail set spare has the fixed rail, relatively but the movable rail of fixed rail back-and-forth movement, its characterized in that: the wiring mechanism comprises a mounting box, a cable and a drag chain for accommodating part of the cable, the mounting box is kept fixed relative to the fixed rail, one end of the drag chain is fixedly inserted on the mounting box, and the other end of the drag chain is connected to the movable rail and moves back and forth along with the movable rail.

12. The routing mechanism of claim 11, wherein: one end of the drag chain is inserted and fixed at the rear side of the mounting box along the front-rear direction.

13. The refrigerator comprises a refrigerator body and a drawer type door body, wherein a chamber which is opened forwards is formed in the refrigerator body, the drawer type door body can move along the front-back direction to open or close the chamber, and an electric component is arranged on the drawer type door body, and the refrigerator is characterized in that: the refrigerator further comprises a routing mechanism according to claim 11 or 12; the compartment is provided with two side walls which are oppositely arranged at the left and the right, the fixed rail is fixed on the side walls, and the movable rail is connected to the drawer type door body, so that the drag chain moves back and forth along with the drawer type door body.

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