Preheating defrosting structure of double-door vehicle-mounted refrigerator

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a preheating defrosting structure of a double-door vehicle-mounted refrigerator. The upper end of the inner container is connected with a door frame, a pair of sealing door plates are movably embedded in the door frame through torsional spring rotating shafts and damping rotating shafts at the upper end and the lower end, and sealing strips are fixed to the inner sides of the sealing door plates through limiting pressing plates. A heating wire is clamped and fixed in the sealing door plate through a limiting support, the top end of the heating wire penetrates out of a hollow rotating shaft in the middle of a torsion spring rotating shaft, a torsion spring fixing seat is connected to the outer side of the hollow rotating shaft, and a wiring support is fixed to the outer side of the torsion spring fixing seat in a limiting mode. And the heating wire penetrates through the hollow rotating shaft and then is clamped in an embedding groove in the surface of the wiring bracket. Based on the structure of a traditional vehicle-mounted refrigerator door, the heating structure is additionally arranged, defrosting treatment can be conducted on the frosted refrigerator door, the situation that the refrigerator door is frosted and cannot be normally opened is avoided, and use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle refrigerator, especially a double -open -door vehicle refrigerator preheating defrosting structure. BACKGROUND

[0002] One kind of vehicle refrigerator is a double -open -door vehicle refrigerator, which is usually installed in the central armrest position, that is, two box doors can swing towards or away from the top of the refrigerator body, thereby opening or closing the vehicle refrigerator. In a common double -open -door vehicle refrigerator, the box door is fixedly connected to the refrigerator body, and the swing axis does not change. In order to achieve the heat preservation effect, the box door needs to be provided with a heat preservation bubble layer, which results in a certain thickness of the box door. Therefore, a problem arises, that is, a wide enough gap needs to be designed between the two box doors to avoid interference and collision of the end portions of the two box doors when closed. The gap can only be sealed by a sealing element. With the increase of the gap, the cold storage capacity of the vehicle refrigerator decreases, and the cold air is lost through heat conduction at the gap. In addition, the large gap causes condensation and frosting problems. Condensation and frosting directly affect the normal opening of the refrigerator door. In view of the above problems, a double -open -door vehicle refrigerator preheating defrosting structure is provided. SUMMARY

[0003] To solve the defects and deficiencies of the prior art, the purpose of the utility model is to provide a double -open -door vehicle refrigerator preheating defrosting structure which is simple in structure, reasonable in design and convenient to use. Based on the structure of the traditional vehicle refrigerator door, the heating structure is added to defrost the frosted refrigerator door, so that the refrigerator door can be normally opened, and the convenience of use is improved.

[0004] To achieve the above purpose, the utility model adopts the technical scheme: it contains inner container, door frame, torsion spring shaft, damping shaft, sealing door plate, limiting pressing plate, sealing strip;The upper end of the inner container is connected with the door frame, and a pair of sealing door plates are movably embedded in the door frame through the torsion spring shaft and the damping shaft at the upper and lower ends, and the inner side of the sealing door plate is fixed with a sealing strip through the limiting pressing plate;Among them, the inside of the sealing door plate is fixed with a heating wire through the limiting support, and the top end of the heating wire passes out from the hollow shaft of the torsion spring shaft, the outer side of the hollow shaft is connected with the torsion spring fixing seat, the outer side of the torsion spring fixing seat is fixed with a wiring support, and the heating wire is clamped in the embedding groove on the surface of the wiring support after passing through the hollow shaft.

[0005] As a preferred, the top end of the door frame is provided with a locking button assembly, and the locking button assembly is connected with the locking hole at the top end of the sealing door plate through the built-in Z-shaped lock tongue to realize the closure and locking of the sealing door plate.

[0006] As preferred, the locking button assembly is composed of a fixed support, a button, and Z-shaped lock latches; two groups of Z-shaped lock latches are respectively clamped in the embedded slots at the front end of the fixed support through spring shafts, and the upper end of the fixed support is penetrated by a spring and has a limiting hole in which the upper end of the button is fixed, and the lower end of the button is connected with the tail of the Z-shaped lock latches.

[0007] As preferred, the sealing strip on the lower surface of the sealing door plate is kept in close contact with the upper end of the door frame to seal, and the left and right sealing door plate splicing surfaces are spliced and sealed through the extrusion of the sealing strip.

[0008] As preferred, the damping rotating shaft is composed of a damping shaft and an external protective shell.

[0009] After the above structure is adopted, the utility model has the beneficial effects that:

[0010] 1. It is based on the structure of a traditional vehicle-mounted refrigerator door, and a heating structure is added to defrost the frosted refrigerator door, thereby avoiding that the refrigerator door cannot be normally opened due to frosting;

[0011] 2. The rotating shaft is arranged externally, which not only realizes the characteristics of an ultra-thin door body and easy disassembly and maintenance, but also enables the wire of the door body heating wire to be led out to the box body through the hollow high-manganese steel door body rotating shaft pin when the door body heating wire is used, and because the rotating shaft is fixed and does not rotate during movement, the risk of wire bending and breakage caused by rotation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the utility model is described in detail by the following specific implementation and drawings.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a heating wire distribution schematic diagram of the utility model;

[0015] Figure 3 It is a torsional spring rotating shaft 3 structural schematic diagram of the utility model;

[0016] Figure 4 It is a locking button assembly 9 structural schematic diagram of the utility model;

[0017] Figure 5 It is a locking button assembly 9 sectional view of the utility model;

[0018] Marked: inner container 1, door frame 2, torsional spring rotating shaft 3, damping rotating shaft 4, sealing door plate 5, limiting pressing plate 6, sealing strip 7, heating wire 8, locking button assembly 9, wiring support 31, torsional spring fixing seat 32, hollow rotating shaft 33, fixed support 91, button 92, Z-shaped lock latch 93. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0020] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0021] See Figures 1-5 As shown, this specific embodiment adopts the following technical solution: It includes an inner liner 1, a door frame 2, a torsion spring shaft 3, a damping shaft 4, a sealing door panel 5, a limiting pressure plate 6, and a sealing strip 7; the upper end of the inner liner 1 is connected to the door frame 2, and a pair of sealing door panels 5 are movably embedded inside the door frame 2 through the torsion spring shaft 3 and the damping shaft 4 at the upper and lower ends, and the inner side of the sealing door panel 5 is fixed with a sealing strip 7 by the limiting pressure plate 6; wherein, a heating wire 8 is fixed inside the sealing door panel 5 by a limiting bracket, and the top end of the heating wire 8 passes through the hollow shaft 33 in the middle of the torsion spring shaft 3, the outer side of the hollow shaft 33 is connected to a torsion spring fixing seat 32, and the outer side of the torsion spring fixing seat 32 is limited and fixed with a wiring bracket 31, and the heating wire 8 passes through the hollow shaft 33 and is locked in the groove on the surface of the wiring bracket 31. Heating wire 8 is designed and arranged inside the door. The heating wire 8 heats the door and keeps the area around the door and the lower surface of the box above the dew point temperature, which can effectively prevent and solve the problem of condensation. At the same time, the selected heating wire has the characteristics of low power (the experimental heating wire power is only 2W), low cost, and heating temperature close to the human body temperature, so it will not cause the risk of burning the user due to excessive temperature.

[0022] The door frame 2 has a locking button assembly 9 at its top center. The locking button assembly 9 engages with the lock hole at the top of the sealing door panel 5 via a built-in Z-shaped locking tongue 93, thereby locking the sealing door panel 5 in place. The sealing strip 7 on the lower surface of the sealing door panel 5 is fitted against the upper end of the door frame 2 for sealing, and the joint between the left and right sealing door panels 5 is sealed by the compression of the sealing strip 7.

[0023] Further, the sealing door plate 5 splicing joint sealing structure can adopt a single-side sealing strip structure or a double-side sealing structure; the single-side sealing strip structure is sealed by keeping the single-side sealing strip in close contact with the side surface of the sealing door plate 5, which can effectively increase the contact area of the sealing strip and the door body, and the sealing pressure cover can effectively prevent the side turning of the sealing strip during the opening and closing of the door, and prevent the cross-section deformation and sealing failure; the double-side sealing structure is sealed by the mutual extrusion of the two sealing strips; the dustproof strips are added above the sealing strips, which can effectively reduce the possibility of potential sealing failure caused by the dust or foreign matter falling on the sealing strip after long-term use of the user; and the dustproof strips can effectively shield the gap between the middle joint motion envelopes, and have a more beautiful effect.

[0024] In addition, the locking button assembly 9 comprises a fixed support 91, a button 92 and Z-shaped lock latches 93; the two groups of Z-shaped lock latches 93 are respectively clamped in the embedded grooves at the front end of the fixed support 91, and the upper end of the fixed support 91 is provided with a limiting hole in which the upper end of the button 92 is fixed, and the lower end of the button 92 is connected with the tail of the Z-shaped lock latches 93.

[0025] After the above structure is adopted, the utility model has the beneficial effects that:

[0026] 1. The two double-door sealing structures can realize the design of an ultra-thin door body, 40% of the thickness space can be saved compared with the traditional design of solving the condensate water problem by accumulating the foaming thickness, the design, process and manufacturing error requirements are low, the user can use it simply, and the mature scale production can be realized.

[0027] 2. The torsional spring rotating shaft and the damping rotating shaft are arranged outside the frame outside the frame; compared with the traditional hinge layout structure, the door body has the beneficial effects of lower cost and lighter weight, and occupies smaller space in the refrigeration chamber; in addition, the button mechanism is arranged on the inner side of the door body, the door body has the characteristics of small volume and compact space, more sufficient design area is reserved for other functions such as a cup holder and wireless charging, and the door body has the characteristics of easy disassembly and maintenance.

[0028] 3. The power line is designed to pass through the face shell, the hollow metal rotating shaft and the wire support; when the door body actually moves, the rotating shaft is fixed and cannot rotate; the lead wire passes through the rotating shaft and cannot be twisted, so that the risk of wire breakage is effectively avoided; the metal rotating shaft is wrapped with a plastic part on both sides; the metal rotating shaft can be effectively positioned and fixed, the contact material of the port and the wire is plastic, the risk of metal fracture and power line contact is effectively reduced, and the risk of wire wear after long-term use is greatly reduced.

[0029] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the appended claims and not by the above description, which is therefore intended to be included within the present application insofar as it falls within the meaning and the scope of the equivalent elements of the claims.

[0030] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment exhibits only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the present specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A preheating and defrosting structure for a double-door car refrigerator, characterized in that: It contains inner container, door frame, torsion spring rotating shaft, damping rotating shaft, sealing door plate, limiting pressing plate, sealing strip; the upper end of the inner container is connected with the door frame, a pair of sealing door plates are movably embedded in the door frame through the torsion spring rotating shaft and the damping rotating shaft at the upper and lower ends, and the inner side of the sealing door plate is fixed with the sealing strip through the limiting pressing plate; wherein the inside of the sealing door plate is fixed with a heating wire through the limiting support, and the top end of the heating wire is out of the hollow rotating shaft of the torsion spring rotating shaft, the outside of the hollow rotating shaft is connected with the torsion spring fixing seat, the outside of the torsion spring fixing seat is fixed with the wire routing support, and the heating wire is clamped in the embedding groove on the surface of the wire routing support after passing through the hollow rotating shaft.

2. The pre-cooling defrosting structure of a dual-door vehicle refrigerator according to claim 1, characterized in that: The top end of the door frame is provided with a locking button assembly, the locking button assembly is clamped with the lock hole at the top end of the sealing door plate through the built-in Z-shaped lock tongue to realize the closure and locking of the sealing door plate.

3. The pre-cooling defrosting structure of a dual-door vehicle refrigerator according to claim 2, characterized in that: The locking button assembly is composed of a fixed support, a button and a Z-shaped lock tongue; two groups of Z-shaped lock tongues are clamped in the embedding groove inside the front end of the fixed support through the spring shaft, and the upper end of the fixed support is matched with the spring and inserted into the limiting hole fixed with the upper end of the button, and the lower end of the button is connected with the tail of the Z-shaped lock tongue.

4. The pre-cooling defrosting structure of a dual-door vehicle refrigerator according to claim 2, characterized in that: The sealing strip on the lower surface of the sealing door plate is kept in close contact with the upper end of the door frame to seal, and the left and right sealing door plate splicing surfaces are spliced and sealed through the extrusion of the sealing strip.

5. The pre-cooling defrosting structure of a dual-door vehicle refrigerator according to claim 1, characterized in that: The damping rotating shaft is composed of a damping shaft and an external protective shell.

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