Drawer type vehicle-mounted refrigerator

Abstract

The utility model relates to the technical field of vehicle-mounted refrigerators, in particular to a drawer type vehicle-mounted refrigerator which comprises a main body, a drawer is movably connected in the main body, an air cylinder is arranged in the main body, and one end of the air cylinder is communicated with an air pump. The drawer is provided with a connecting column matched with the air cylinder, the connecting column is inserted into the air cylinder from the other end of the air cylinder, and the connecting column and the air cylinder are dynamically sealed. The drawer slides back and forth in the main body through air suction and deflation of the air pump. The air cylinder is arranged in the body, the connecting column is arranged on the drawer, one end of the air cylinder is communicated with the air pump, the other end of the air cylinder is connected with the connecting column in a movable sealing mode, the drawer is opened and closed through air suction and deflation of the air pump, and the structure is simple and feasible.

Description

Technical Field

[0001] This utility model relates to the field of vehicle refrigerator technology, and in particular to a drawer-type vehicle refrigerator. Background Technology

[0002] A drawer-type car refrigerator includes a mounting base and a drawer, with the drawer slidingly connected to the mounting base. To enhance user convenience, existing drawer-type car refrigerators typically incorporate a mechanical transmission mechanism on the mounting base. This mechanism is electrically connected to a motor, enabling the drawer to open automatically and improving the user experience.

[0003] For example, the patent with publication number CN117516000A discloses a fully automatic drawer-type vehicle refrigerator and control unit. The automatic drawer drive module includes a housing and a movable platform that can slide laterally on the top of the housing. The movable platform is connected to the drawer component. A power element is installed at one end inside the housing. The output end of the power element is connected to a transmission rod arranged laterally inside the housing. A threaded transmission block is sleeved on the transmission rod. The transmission block is connected to the movable platform. A door lock assembly is installed on the bottom inner side of the housing near the power element. The door lock assembly cooperates with the transmission rod to keep the drawer component in the retracted position inside the refrigerator body.

[0004] For example, patent CN118602679A discloses a car refrigerator with a self-priming function, comprising: a fixed base; a drawer slidably mounted on the fixed base and having a closed position, a self-priming position, and a fully extended position; a self-priming unit mounted on the fixed base and having a track groove and a sliding block, the track groove having a straight section and a bent section, one end of the sliding block being movably inserted into the straight section and movably engaged with the bent section, and the other end being movably engaged with the drawer; the sliding block can disengage from the drawer by moving its end inserted in the track groove from the straight section to the bent section, and re-engage with the drawer by moving the drawer from the fully extended position to the self-priming position, thereby driving the drawer from the self-priming position to the closed position; a first drive unit mounted on one side of the fixed base, for driving the drawer to disengage from the sliding block; and a second drive unit mounted on the fixed base, for driving the drawer to the fully extended position.

[0005] The above technologies all achieve automatic opening and closing of drawers through mechanical transmission structures. However, such mechanical transmission structures are quite complex, and there is an urgent need for another way to simplify the design of the transmission structure. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a drawer-type vehicle refrigerator with a simple and feasible structure.

[0007] The technical solution adopted by this utility model to solve the problem is: a drawer-type vehicle refrigerator, including a main body, a drawer movably connected inside the main body, a cylinder disposed inside the main body, one end of the cylinder being connected to an air pump; the drawer is provided with a connecting post adapted to the cylinder, the connecting post being inserted into the cylinder from the other end of the cylinder, and the connecting post being dynamically sealed to the cylinder; the drawer slides back and forth inside the main body by the air pump's suction and release.

[0008] As a further improvement to the above technical solution, the main body includes a first fixed base, and the drawer is slidably connected to the first fixed base.

[0009] As a further improvement to the above technical solution, the drawer has a maximum extended position, a transition position, and a fully closed position during its travel on the first fixed base; the travel of the drawer between the fully closed position and the transition position is controlled by an air pump, and the travel of the drawer between the transition position and the maximum extended position is controlled manually.

[0010] As a further improvement to the above technical solution, a limit block is provided at the bottom of the drawer, and a stop buffer is installed on the first fixed seat. When the drawer slides to the maximum unfolded position, the limit block abuts against the stop buffer.

[0011] As a further improvement to the above technical solution, a pressure sensor is provided inside the air pump. The pressure sensor is communicatively connected to the air pump and is used to identify the air pressure inside the cylinder.

[0012] As a further improvement to the above technical solution, a damping roller is installed on the first fixed base, and the damping roller abuts against the bottom of the drawer.

[0013] As a further improvement to the above technical solution, both the cylinder and the air pump are mounted on the first fixed base, and the connecting column is mounted at the bottom of the drawer.

[0014] As a further improvement to the above technical solution, a second fixing seat is also included. The second fixing seat is located behind the drawer, the cylinder is mounted on the second fixing seat, and the connecting column is mounted on the rear side of the drawer.

[0015] As a further improvement to the above technical solution, the connecting column includes a column body and a piston. One end of the column body is fixedly connected to the drawer, and the piston is fixedly connected to the other end of the column body. The connecting column is dynamically sealed to the cylinder through the piston.

[0016] As a further improvement to the above technical solution, a control button is also included, which is electrically connected to the air pump and controls the air pump.

[0017] The beneficial effects of this utility model are: by setting a cylinder in the main body and a connecting column on the drawer, with one end of the cylinder connected to an air pump and the other end of the cylinder dynamically sealed to the connecting column, the drawer can be opened and closed by the air pump's intake and exhaust. The structure is simple and feasible. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the first fixing base of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the drawer bottom of this utility model;

[0021] Figure 3 This is a cross-sectional view of the drawer of this utility model when it is in the fully closed position;

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a cross-sectional view of the drawer of this utility model when it is in the transition position;

[0024] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0025] Figure 7 This is a cross-sectional view of the drawer of this utility model when it is in its maximum unfolded position;

[0026] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point C;

[0027] Figure 9 A schematic diagram showing the structure in which the cylinder is mounted on the second fixed seat and the connecting column is located on the rear side of the drawer;

[0028] In the diagram: 1-First fixed seat, 11-Cylinder, 12-Air pump, 13-Stop buffer, 14-Damping roller, 2-Drawer, 21-Connecting column, 211-Column, 212-Piston, 22-Limiting block, 3-Second fixed seat. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 8 A drawer-type car refrigerator includes a main body and a drawer 2 movably connected within the main body. The main body includes a first fixed base 1, on which a cylinder 11 is mounted. The cylinder 11 is elongated and tubular, with its length parallel to its front-to-back direction. One end of the cylinder 11 is connected to an air pump 12. The bottom of the drawer 2 is provided with a connecting post 21 adapted to the cylinder 11. The connecting post 21 is positioned in the front-to-back direction and is inserted into the cylinder 11 from the other end. The connecting post 21 and the cylinder 11 are dynamically sealed. The drawer 2 slides back and forth on the first fixed base 1 by the air pump 12's suction and release, thereby opening and closing the drawer 2. The pneumatic structure simplifies the traditional mechanical transmission structure by achieving the opening and closing of the drawer 2.

[0034] like Figure 9 As shown, in other possible embodiments, the main body may also include a second fixing seat 3, which is located behind the drawer 2 (inside the main body). The position of the cylinder 11 is replaced on the second fixing seat 3, and the position of the connecting column 21 is replaced on the rear side of the drawer 2. It should be understood that when the cylinder 11 and the connecting column 21 are located on the rear side, the term "rear side" should be understood as any height position on the rear side, which may be, but is not limited to, the upper, middle and lower parts of the rear side.

[0035] In a preferred embodiment, the connecting column 21 includes a column body 211 and a piston 212. One end of the column body 211 is fixedly connected to the drawer 2, and the piston 212 is fixedly connected to the other end of the column body 211. The end of the connecting column 21 containing the piston 212 is inserted into the cylinder 11 and dynamically seals with the cylinder 11.

[0036] In other embodiments, the above mechanism can be applied to a semi-automatic (or semi-driven) drawer-type vehicle refrigerator, specifically as follows: the drawer 2 has a maximum unfolded position, a transition position, and a fully closed position during its travel on the first fixed base 1 (or within the main body). The section between the fully closed position and the transition position is a pump-driven section, and the sections between the maximum unfolded position and the transition position are manually driven sections. The travel of the drawer 2 between the fully closed position and the transition position is controlled by the pump 12, and the travel of the drawer 2 between the transition position and the maximum unfolded position is manually controlled.

[0037] In a preferred embodiment, a limit block 22 is provided at the bottom of the drawer 2, and a stop buffer 13 is installed on the first fixed base 1. When the drawer 2 slides to the maximum unfolded position, the limit block 22 abuts against the stop buffer 13. The stop buffer 13 is used to limit the maximum unfolded position of the drawer 2 and reduce the wear of internal parts.

[0038] In a preferred embodiment, there are two limiting blocks 22, which are symmetrically distributed on the bottom of the drawer 2 to prevent the drawer 2 from shifting left or right.

[0039] In a preferred embodiment, a damping roller 14 is also installed on the first fixed base 1. The damping roller 14 abuts against the bottom of the drawer 2, thereby providing a comfortable feel in the manual section and improving the user experience.

[0040] In a preferred embodiment, a pressure sensor is provided inside the air pump 12. The pressure sensor is communicatively connected to the air pump 12 and is used to identify the air pressure inside the cylinder 11. When the drawer 2 slides from the maximum unfolded position to the transition position, the front end of the connecting part (including one end of the piston 212) is inserted into the cylinder 11. At this time, the air pressure inside the cylinder 11 increases, the pressure sensor senses and feeds back to the air pump 12, the air pump 12 starts to pump air, and the drawer 2 slides towards the fully closed position under the action of negative pressure until the drawer 2 is completely closed.

[0041] In other possible embodiments, the pressure sensor described above can also be replaced with a position sensor. The position sensor is communicatively connected to the air pump 12 and is used to identify the position of the drawer 2. When the drawer 2 is in a transition position, the position sensor senses and feeds back to the air pump 12, which then starts to pump air. Under the action of negative pressure, the drawer 2 slides towards the fully closed position until the drawer 2 is completely closed.

[0042] Specifically, compared with the position sensor solution, the pressure sensor solution is preferred. The pressure sensor in the pressure sensor solution is integrated into the pump, which is simple to arrange and has a relatively low cost.

[0043] In a preferred embodiment, the distance between the fully closed position and the transition position is 55-65 mm, and more preferably 60 mm.

[0044] In some embodiments, a control button is also included. The control knob is disposed on the vehicle refrigerator. The control button is electrically connected to the air pump 12 and controls the air pump 12.

[0045] Furthermore, refer to Figure 3 , Figure 5 and Figure 7 The opening and closing principle of the above-mentioned semi-automatic (semi-drive) drawer-type car refrigerator is as follows:

[0046] Door opening principle: Pressing the control button releases air from the air pump 12. The air pressure in the cylinder 11 pushes the connecting column 21 away from the air pump 12, and the drawer 2 slides forward and opens until it reaches the transition position. When the drawer 2 is in the transition position, it can be manually pulled out to the maximum unfolded position.

[0047] Closing principle: When the drawer 2 is pushed to the transition position, one end of the connecting column 21 containing the piston 212 is inserted into the cylinder 11. The air pressure in the cylinder 11 rises, the pressure sensor identifies and controls the air pump 12 to draw air, and the drawer 2 slides backward and gradually closes until it is fully closed.

[0048] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A drawer-type car refrigerator, comprising a main body, wherein a drawer (2) is movably connected within the main body, characterized in that: A cylinder (11) is provided inside the main body, and one end of the cylinder (11) is connected to an air pump (12); The drawer (2) is provided with a connecting post (21) adapted to the cylinder (11). The connecting post (21) is inserted into the cylinder (11) from the other end of the cylinder (11), and the connecting post (21) and the cylinder (11) are dynamically sealed. The drawer (2) slides back and forth within the main body by the air pump (12) drawing in and releasing air.

2. A drawer-type car refrigerator as described in claim 1, characterized in that: The main body includes a first fixed base (1), and the drawer (2) is slidably connected to the first fixed base (1) from front to back.

3. A drawer-type car refrigerator as described in claim 2, characterized in that: The drawer (2) has a maximum extended position, a transition position and a fully closed position during its travel on the first fixed base (1); The travel of the drawer (2) from the fully closed position to the transition position is controlled by an air pump (12), and the travel of the drawer (2) from the transition position to the maximum extended position is controlled manually.

4. A drawer-type car refrigerator as described in claim 3, characterized in that: The drawer (2) is provided with a limit block (22) at the bottom, and a stop buffer (13) is installed on the first fixed seat (1). When the drawer (2) slides to the maximum unfolded position, the limit block (22) abuts against the stop buffer (13).

5. A drawer-type car refrigerator as described in claim 1, characterized in that: A pressure sensor is installed inside the air pump (12), and the pressure sensor is communicatively connected to the air pump (12). The pressure sensor is used to identify the air pressure inside the cylinder (11).

6. A drawer-type car refrigerator as described in claim 3, characterized in that: A damping roller (14) is installed on the first fixed base (1), and the damping roller (14) abuts against the bottom of the drawer (2).

7. A drawer-type car refrigerator as described in claim 2, characterized in that: The cylinder (11) and the air pump (12) are both mounted on the first fixed base (1), and the connecting column (21) is mounted at the bottom of the drawer (2).

8. A drawer-type car refrigerator as described in claim 2, characterized in that: It also includes a second fixing seat (3), which is located behind the drawer (2), the cylinder (11) is mounted on the second fixing seat (3), and the connecting column (21) is mounted on the rear side of the drawer (2).

9. A drawer-type car refrigerator as described in claim 1, characterized in that: The connecting column (21) includes a column body (211) and a piston (212). One end of the column body (211) is fixedly connected to the drawer (2), and the piston (212) is fixedly connected to the other end of the column body (211). The connecting column (21) is dynamically sealed to the cylinder (11) through the piston (212).

10. A drawer-type car refrigerator as described in claim 1, characterized in that: It also includes a control button, which is electrically connected to the air pump (12) and controls the air pump (12).

Images