Drawer lead screw driving structure of vehicle-mounted refrigerator

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a vehicle-mounted refrigerator drawer lead screw driving structure. A pair of sliding rails is horizontally arranged on the left side and the right side of the upper surface of the supporting base, a transmission lead screw is arranged in the middle of the supporting base, the top end of the transmission lead screw is inserted into a first supporting bearing at the front end of the supporting base, and the rear end of the transmission lead screw is inserted into a second supporting bearing at the tail of the supporting base. The transmission lead screw is sleeved with a moving block, the moving block is connected with a connecting support, and the two ends of the connecting support are connected to the sliding rails. And the tail part of the transmission screw rod is connected with an external driving motor through a coupler. A traditional drawer driving structure is improved and converted into a multi-module structure, and the assembly process is simplified; operation space for screwing is reserved, and the connecting structure is simple and feasible; meanwhile, the induction limiting assembly is additionally arranged, and the problem that impact force is large when moving to the limiting position is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted refrigerators, and in particular relates to a lead screw driving structure for a drawer of a vehicle-mounted refrigerator. Background Art

[0002] The existing screw-driven car refrigerator has a connection structure in which the screw drives the moving block, the moving block drives the drawer, and the drawer drives the guide rail to move. In this structure, the assembly connection between the moving block and the drawer is difficult because there is a base below the moving block and a drawer assembly above it, that is, the upper and lower vertical directions of the moving block are blocked, and there is no operating space for assembly tools. Only a card-connection connection method can be used, and the structure is relatively complex and unstable.

[0003] In addition, when the drawer moves to the extreme position (such as the door closing position), the motor driving force and the blocking force of the box wall on the door will conflict with each other, which will cause a relatively large impact force on the entire transmission system and reduce the life of the screw transmission system.

[0004] In view of the above problems, a lead screw driving structure for a vehicle-mounted refrigerator drawer is provided. Utility Model Content

[0005] In order to solve the defects and shortcomings of the prior art, the purpose of the utility model is to provide a vehicle-mounted refrigerator drawer screw drive structure with a simple structure, reasonable design and easy use. It improves the traditional drawer drive structure, transforms it into a multi-module structure, simplifies the assembly process, reserves operating space for screwing, and has a simple and feasible connection structure. At the same time, an induction limit component is added to avoid the problem of large impact force when moving to the extreme position.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it comprises a refrigerator body and a refrigeration module box; the interior of the refrigerator body is connected with a drawer through a screw slide rail assembly; wherein the screw slide rail assembly comprises a support base, a slide rail, a transmission screw, a support bearing 1, a support bearing 2, a moving block, a connecting bracket, a coupling, and a driving motor; a pair of slide rails are horizontally arranged on the left and right sides of the upper surface of the support base, and a transmission screw is arranged in the middle of the support base, the top end of the transmission screw is inserted into the support bearing 1 at the front end of the support base, and the rear end of the transmission screw is inserted into the support bearing 2 at the tail end of the support base; and a moving block is sleeved on the transmission screw, and a connecting bracket is connected to the moving block, and both ends of the connecting bracket are connected to the slide rail; the tail end of the transmission screw is connected to an external driving motor through a coupling.

[0007] Preferably, the refrigerator body consists of an outer shell, an insulating liner, and a drawer; an insulating liner is arranged inside the outer shell, and a foam filling is arranged between the outer shell and the insulating liner, and the inside of the insulating liner is connected to a drawer via a screw slide rail assembly.

[0008] Preferably, the support base is further provided with a photoelectric switch 1 and a photoelectric switch 2; the photoelectric switch 1 and the photoelectric switch 2 are respectively fixed on one side of the front and rear ends of the transmission screw.

[0009] Preferably, the photoelectric switch 1 and the photoelectric switch 2 cooperate with the convex column at the bottom of the drawer to perform inductive limiting.

[0010] Preferably, the drive motor is fixed inside the refrigeration module box.

[0011] After adopting the above structure, the beneficial effects of the utility model are as follows: it improves the traditional drawer drive structure, transforms it into a multi-module structure, simplifies the assembly process; reserves operating space for screwing, and the connection structure is simple and feasible; at the same time, adds an induction limit component to avoid the problem of large impact force when moving to the extreme position. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the screw guide rail assembly 6 of the utility model;

[0016] Figure 4 It is a plan view of the screw guide rail assembly 6 of the utility model;

[0017] Explanation of the accompanying drawings: refrigerator body 1, refrigeration module box 2, outer shell 3, thermal insulation liner 4, drawer 5, screw slide rail assembly 6, support base 7, slide rail 8, transmission screw 9, support bearing 1 10, support bearing 2 11, moving block 12, connecting bracket 13, coupling 14, drive motor 15. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme 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.

[0020] See Figure 1-Figure 4 As shown, this specific embodiment adopts the following technical scheme: it comprises a refrigerator body 1 and a refrigeration module box 2; the interior of the refrigerator body 1 is connected to a drawer 5 through a screw slide rail assembly 6; wherein the screw slide rail assembly 6 comprises a support base 7, a slide rail 8, a transmission screw 9, a support bearing 10, a support bearing 2 11, a moving block 12, a connecting bracket 13, a coupling 14, and a driving motor 15; a pair of slide rails 8 are horizontally arranged on the left and right sides of the upper surface of the support base 7, and a transmission screw 9 is arranged in the middle of the support base 7, the top end of the transmission screw 9 is inserted in the support bearing 10 at the front end of the support base 7, and the rear end of the transmission screw 9 is inserted in the support bearing 2 11 at the tail of the support base 7; and a moving block 12 is sleeved on the transmission screw 9, and a connecting bracket 13 is connected to the moving block 12, and both ends of the connecting bracket 13 are connected to the slide rail 8; the tail of the transmission screw 9 is connected to an external driving motor 15 through a coupling 14.

[0021] Among them, the refrigerator body 1 is composed of an outer shell 3, an insulating inner shell 4, and a drawer 5; the outer shell 3 is provided with an insulating inner shell 4, and a foam filling is provided between the outer shell 3 and the insulating inner shell 4, and the insulating inner shell 4 is connected to the drawer 5 through a screw slide rail assembly 6.

[0022] Furthermore, the support base 7 is also provided with a photoelectric switch 16 and a photoelectric switch 2 17; the photoelectric switch 16 and the photoelectric switch 2 17 are respectively fixed on one side of the front and rear ends of the transmission screw 9; the photoelectric switch 16 and the photoelectric switch 2 17 cooperate with the convex column at the bottom of the drawer 5 to perform inductive limiting; the drive motor 15 is fixed inside the refrigeration module box 2.

[0023] The working principle of this specific implementation is:

[0024] A. Improvement of assembly and connection structure;

[0025] The lead screw slide rail assembly 6 is assembled from multiple modules, including two sets of slide rails 8 constituting a pull-out module; a pull-out drive assembly consisting of a transmission screw 9, a support bearing 10, a support bearing 2 11, and a moving block 12; and a sensing module consisting of a photoelectric switch 1 16 and a photoelectric switch 2 17; first, the two sets of slide rails 8 are fixed, then the pull-out drive assembly is installed, and finally, the photoelectric switch 1 16 and the photoelectric switch 2 17 are installed, forming a completely open installation structure.

[0026] B. When the drawer moves to the limit position (such as the door closing position), the photoelectric switch 1 16 and the photoelectric switch 2 17 can identify that the drawer has moved to the limit position, and the photoelectric switch 1 16 and the photoelectric switch 2 17 are powered off in time to cut off the transmission force.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A screw drive structure for a vehicle refrigerator drawer, characterized in that: It comprises a refrigerator body and a refrigeration module box; the interior of the refrigerator body is connected with a drawer through a lead screw slide rail assembly; wherein the lead screw slide rail assembly comprises a support base, a slide rail, a transmission screw, a support bearing 1, a support bearing 2, a moving block, a connecting bracket, a coupling, and a driving motor; a pair of slide rails are horizontally arranged on the left and right sides of the upper surface of the support base, and a transmission screw is arranged in the middle of the support base, the top end of the transmission screw is inserted into a support bearing 1 at the front end of the support base, and the rear end of the transmission screw is inserted into a support bearing 2 at the tail end of the support base; and a moving block is sleeved on the transmission screw, and a connecting bracket is connected to the moving block, and both ends of the connecting bracket are connected to the slide rail; the tail end of the transmission screw is connected to an external driving motor through a coupling.

2. The lead screw driving structure of a vehicle refrigerator drawer according to claim 1, characterized in that: The refrigerator box body is composed of an outer shell, an insulating liner, and a drawer; the outer shell is provided with an insulating liner, and a foam filling is provided between the outer shell and the insulating liner, and the insulating liner is connected to a drawer through a screw slide rail assembly.

3. The lead screw driving structure of a vehicle refrigerator drawer according to claim 1, characterized in that: The support base is also provided with a photoelectric switch 1 and a photoelectric switch 2; the photoelectric switch 1 and the photoelectric switch 2 are respectively fixed on one side of the front and rear ends of the transmission screw rod.

4. The lead screw driving structure of a vehicle refrigerator drawer according to claim 3, characterized in that: The photoelectric switch 1 and the photoelectric switch 2 cooperate with the convex column at the bottom of the drawer to perform inductive limiting.

5. The lead screw driving structure of a vehicle refrigerator drawer according to claim 1, characterized in that: The driving motor is fixed inside the refrigeration module box.

Images