A driving structure of a refrigerator drawer for a vehicle and a refrigerator for a vehicle using the same

Abstract

A kind of drive structure of refrigerator drawer of vehicle and refrigerator of vehicle using it, specifically, a kind of drive structure of refrigerator drawer of vehicle, including support base, slide rail, transmission rod, bearing, bearing seat, drive part and transmission assembly;The front and rear ends of support base are respectively equipped with bearing seat, the left and right sides of support base are respectively equipped with slide rail, the front and rear ends of transmission rod are rotatably installed in bearing seat by bearing, transmission rod is used for driving refrigerator drawer of vehicle to move back and forth by transmission assembly, drive part is used to drive transmission rod rotation.The utility model discloses a kind of drive structure of refrigerator drawer of vehicle and refrigerator of vehicle using it according to above-mentioned content, solve the problem that the drive structure of refrigerator drawer of vehicle in prior art is not compact enough, occupy too much storage space, and transmission is unstable, meshing loosens, drawer deviation or jamming and other phenomena are prone to occur.

Description

Technical Field

[0001] This utility model relates to the field of vehicle refrigerator drawer opening and closing technology, and in particular to a driving structure for a vehicle refrigerator drawer and a vehicle refrigerator using the same. Background Technology

[0002] Car refrigerators, used for refrigerating or keeping items warm during vehicle travel, are widely used due to their drawer-type structure, which makes it convenient to access items. However, the in-vehicle environment places stringent requirements on the structural design of the device: on the one hand, the limited installation space inside the vehicle necessitates a compact drive structure to avoid occupying too much storage space; on the other hand, the continuous bumps, vibrations, and inertial forces generated during vehicle operation can easily lead to unstable transmission, loose engagement, drawer misalignment, or jamming in the drawer drive structure, affecting its reliability. Utility Model Content

[0003] The purpose of this utility model is to propose a drive structure for a car refrigerator drawer and a car refrigerator using the same, so as to solve the problems that the drive structure of the car refrigerator drawer in the prior art is not compact enough, occupies too much storage space, and is prone to unstable transmission, loose meshing, drawer offset or jamming.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A drive structure for a vehicle refrigerator drawer includes a support base, a slide rail, a transmission rod, a bearing, a bearing housing, a drive unit, and a transmission assembly.

[0006] The bearing seats are respectively installed at the front and rear ends of the support base, and the slide rails are respectively installed on the left and right sides of the support base. The front and rear ends of the transmission rod are rotatably installed on the bearing seats through the bearings. The transmission rod is used to drive the drawer of the car refrigerator to move back and forth through the transmission assembly, and the drive unit is used to drive the transmission rod to rotate.

[0007] Furthermore, the transmission assembly includes a helical rack, and the outer periphery of the transmission rod is provided with a first worm pattern, which is adapted to mesh with the helical rack. The helical rack is used to be installed in the drawer of a car refrigerator.

[0008] Specifically, the transmission rod is provided with a second worm gear pattern, and the transmission assembly includes a first double-layer transmission component and a first rack. The first double-layer transmission component is rotatably mounted on the support base, and the first rack is used to be installed in the drawer of the vehicle refrigerator.

[0009] The first double-layer transmission component includes a first gear and a turbine. The turbine is connected to the first gear and is coaxially arranged with the first gear. The turbine meshes with the second worm gear thread, and the first gear meshes with the first rack.

[0010] Preferably, the transmission assembly includes a second double-layer transmission component, a first bevel gear, a mounting base, and a second rack. The mounting base is mounted on the support base, the second double-layer transmission component is rotatably mounted on the mounting base, the first bevel gear is mounted on the transmission rod, and the second rack is used to be mounted on the drawer of the vehicle refrigerator.

[0011] The second double-layer transmission component includes a second bevel gear and a second gear. The second bevel gear is connected to the second gear and is coaxially arranged with the second gear. The second bevel gear meshes with the first bevel gear, and the second gear meshes with the second rack.

[0012] In some embodiments, the support base has an inclined surface, and the slide rail is mounted on the inclined surface.

[0013] Furthermore, the drive unit includes a motor and a coupling, one end of which is connected to the front end of the transmission rod, and the other end of which is connected to the output end of the motor.

[0014] A vehicle-mounted refrigerator includes a drive structure for the vehicle-mounted refrigerator drawer.

[0015] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0016] The support base integrates components such as slide rails, transmission rods, and bearing seats. The slide rails on both sides and the transmission rod in the middle are rationally arranged, without occupying too much lateral space. This adapts to the compact requirements of car refrigerator equipment, effectively saving installation space and increasing the storage capacity of the car refrigerator. Furthermore, the cooperation between the bearings and bearing seats provides stable support for the transmission rod, reducing radial runout during rotation and ensuring meshing stability. The constraint effect of the slide rails on the car refrigerator drawers can counteract lateral forces during transmission, preventing the car refrigerator drawers from shifting or jamming, which is especially suitable for the bumpy environment during vehicle travel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first worm gear pattern according to one embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the helical rack of one embodiment of the present invention;

[0019] Figure 3This is a schematic diagram of the structure of the first double-layer transmission component according to one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the first rack in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the second double-layer transmission component according to one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the second rack in one embodiment of the present invention;

[0023] The components include: a support base 1, an inclined surface 11, a slide rail 2, a transmission rod 3, a first worm gear pattern 31, a second worm gear pattern 32, a bearing seat 5, a drive unit 6, a motor 61, a coupling 62, a helical rack 71, a first rack 72, a first bevel gear 73, a mounting base 74, a second rack 75, a first double-layer transmission component 8, a first gear 81, a worm gear 82, a second double-layer transmission component 9, a second bevel gear 91, and a second gear 92. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0026] In one embodiment of this utility model, such as Figure 1-6As shown, a drive structure for a car refrigerator drawer includes a support base 1, a slide rail 2, a transmission rod 3, bearings, bearing seats 5, a drive unit 6, and a transmission assembly. The bearing seats 5 are respectively installed at the front and rear ends of the support base 1, and the slide rails 2 are respectively installed on the left and right sides of the support base 1. The front and rear ends of the transmission rod 3 are rotatably mounted on the bearing seats 5 through the bearings. The transmission rod 3 is used to drive the car refrigerator drawer to move back and forth through the transmission assembly, and the drive unit 6 is used to drive the transmission rod 3 to rotate. In this embodiment, there are two slide rails 2, two bearings, and two bearing seats 5. The two bearing seats 5 are respectively installed at the front and rear ends of the support base 1. The bearings are installed at the front and rear ends of the transmission rod 3, and are mounted on the bearing seats 5. The two slide rails 2 are respectively installed on the left and right sides of the support base 1, and are located on the left and right sides of the transmission rod 3. The car refrigerator drawer is slidably mounted on the two slide rails 2. During operation, the drive unit 6 drives the transmission rod 3 to rotate, causing the transmission rod 3 to drive the car refrigerator drawer to move back and forth along the length of the slide rails 2 via the transmission assembly. The new drive structure integrates components such as slide rails 2, transmission rods 3, and bearing seats 5 through the support base 1. The slide rails 2 on the left and right sides and the transmission rod 3 in the middle are reasonably arranged, without occupying too much lateral space. It is suitable for the compact requirements of vehicle refrigerator equipment, which can effectively save installation space and improve the storage capacity of vehicle refrigerators. Furthermore, the cooperation between the bearing and the bearing seat 5 provides stable support for the transmission rod 3, reduces its radial runout during rotation, and ensures meshing stability. In addition, the constraint effect of the slide rails 2 on the vehicle refrigerator drawer can offset the lateral force during the transmission process, preventing the vehicle refrigerator drawer from shifting or jamming. It is especially suitable for the bumpy environment during vehicle travel.

[0027] like Figure 1-2As shown, the transmission assembly includes a helical rack 71, and the outer periphery of the transmission rod 3 is provided with a first worm groove 31. The first worm groove 31 is adapted to mesh with the helical rack 71, and the helical rack 71 is used to be installed in the drawer of a car refrigerator. In this embodiment, the helical rack 71 is specifically installed at the bottom of the vehicle refrigerator drawer. The outer periphery of the transmission rod 3 is provided with a spiral first worm groove 31, and the first worm groove 31 meshes and matches with the helical rack 71. During operation, the drive unit 6 drives the transmission rod 3 to rotate, and through the first worm groove 31 and the helical rack 71, drives the vehicle refrigerator drawer to move back and forth along the length direction of the slide rail 2. The meshing surface of the first worm groove 31 and the helical rack 71 is in spiral contact, and the contact trajectory is evenly distributed along the tooth surface. Compared with point contact transmission, it can disperse local stress and reduce tooth surface wear. Furthermore, the transmission component only achieves power transmission through the direct cooperation of the first worm groove 31 and the helical rack 71, without the need for additional intermediate gears or conversion mechanisms, reducing the number of parts and assembly steps. The helical rack 71 is directly installed at the bottom of the drawer, forming a compact transmission pair with the first worm groove 31 of the transmission rod 3. Combined with the integrated layout of the support base 1, the overall structural volume is further reduced, which is more in line with the stringent requirements of vehicle refrigerator equipment for space compactness.

[0028] like Figure 3-4 As shown, the transmission rod 3 is provided with a second worm gear pattern 32, and the transmission assembly includes a first double-layer transmission component 8 and a first rack 72. The first double-layer transmission component 8 is rotatably mounted on the support base 1, and the first rack 72 is used to be installed in the drawer of the car refrigerator. The first double-layer transmission component 8 includes a first gear 81 and a turbine 82. The turbine 82 is connected to the first gear 81, and the turbine 82 is coaxially arranged with the first gear 81. The turbine 82 meshes with the second worm gear pattern 32, and the first gear 81 meshes with the first rack 72. In this embodiment, the first double-layer transmission component 8 is an integrally formed structure. Specifically, the top surface of the turbine 82 is connected to the bottom surface of the first gear 81. The integrally formed first double-layer transmission component 8 reduces the risk of parts loosening. Furthermore, the transmission rod 3 only has a second worm groove 32 at its rear end, eliminating the need to process extra worm grooves and greatly improving processing efficiency. During operation, the drive unit 6 drives the transmission rod 3 to rotate. The second worm groove 32 of the transmission rod 3 synchronously drives the first gear 81 to rotate through the lower turbine 82. The first gear 81 causes the car refrigerator drawer to move back and forth along the length of the slide rail 2 through the first rack 72. The first double-layer transmission component 8 achieves two-stage transmission. After the rotational motion of the transmission rod 3 is reduced by the turbine 82, it is transmitted to the car refrigerator drawer through the meshing of the first gear 81 and the first rack 72. Compared with the worm directly driving the rack, the meshing of the gear and rack is more in line with the characteristics of conjugate transmission, resulting in more stable contact, reducing impact and noise during transmission, and improving the smoothness of the drawer opening and closing.

[0029] like Figure 5-6 As shown, the transmission assembly includes a second double-layer transmission component 9, a first bevel gear 73, a mounting base 74, and a second rack 75. The mounting base 74 is mounted on the support base 1, and the second double-layer transmission component 9 is rotatably mounted on the mounting base 74. The first bevel gear 73 is mounted on the transmission rod 3, and the second rack 75 is used to mount on the drawer of the vehicle refrigerator. The second double-layer transmission component 9 includes a second bevel gear 91 and a second gear 92. The second bevel gear 91 is connected to the second gear 92, and the second bevel gear 91 and the second gear 92 are coaxially arranged. The second bevel gear 91 meshes with the first bevel gear 73, and the second gear 92 meshes with the second rack 75. In this embodiment, the second double-layer transmission component 9 is an integrally formed structure. The integrally formed second double-layer transmission component 9 reduces the risk of parts loosening. During operation, the drive unit 6 drives the transmission rod 3 to rotate. The rotation of the transmission rod 3 drives the first bevel gear 73 to rotate. The first bevel gear 73 meshes with the second bevel gear 91, and the second gear 92 meshes with the second rack 75, thereby causing the car refrigerator drawer to move back and forth along the length direction of the slide rail 2. Through the meshing of the first bevel gear 73 and the second bevel gear 91, the vertical conversion of the transmission direction is achieved, making the transmission path more closely fit the narrow space inside the car refrigerator. Moreover, the meshing efficiency of the bevel gear pair is higher than that of the worm gear transmission. Combined with the efficient transmission of the gear and rack, the energy loss in the power transmission process can be reduced. This is especially important for devices that rely on the vehicle power supply, as it can reduce the power demand of the motor, extend the battery life of the car refrigerator, and improve energy utilization efficiency.

[0030] like Figure 1 , Figure 3 and Figure 5 As shown, the support base 1 has an inclined surface 11, and the slide rail 2 is installed on the inclined surface 11. In this embodiment, the inclined surface 11 is provided on the left and right sides of the support base 1, so that the slide rail 2 is installed at an incline on the inclined surface 11, further reducing the space occupied by the support base 1 in the left and right directions, thereby increasing the storage space of the vehicle refrigerator.

[0031] like Figure 1 , Figure 3 and Figure 5 As shown, the drive unit 6 includes a motor 61 and a coupling 62. One end of the coupling 62 is connected to the front end of the transmission rod 3, and the other end of the coupling 62 is connected to the output end of the motor 61. In this embodiment, the motor 61 is mounted on the vehicle refrigerator via a mounting bracket. During operation, the motor 61 drives the transmission rod 3 to rotate through the coupling 61, thereby causing the vehicle refrigerator drawer to move back and forth along the length of the slide rail 2, which is convenient and quick.

[0032] like Figure 2 , Figure 4 and Figure 6 As shown, a vehicle-mounted refrigerator includes a drive structure for the refrigerator drawer. In this embodiment, by employing the drive structure for the refrigerator drawer, the space utilization of the vehicle-mounted refrigerator is maximized, it adapts to the limitations of vehicle scenarios, operates stably and reliably, copes with complex vehicle environments, has strong structural durability, and reduces maintenance costs.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A drive structure for a vehicle-mounted refrigerator drawer, characterized in that: Includes a support base, slide rail, transmission rod, bearing, bearing housing, drive unit, and transmission assembly; The bearing seats are respectively installed at the front and rear ends of the support base, and the slide rails are respectively installed on the left and right sides of the support base. The front and rear ends of the transmission rod are respectively rotatably installed on the bearing seats through the bearings. The transmission rod is used to drive the drawer of the car refrigerator to move back and forth through the transmission assembly, and the drive unit is used to drive the transmission rod to rotate. The transmission assembly includes a second double-layer transmission component, a first bevel gear, a mounting base, and a second rack. The mounting base is mounted on the support base, the second double-layer transmission component is rotatably mounted on the mounting base, the first bevel gear is mounted on the transmission rod, and the second rack is used to be mounted on the drawer of the vehicle refrigerator. The second double-layer transmission component includes a second bevel gear and a second gear. The second bevel gear is connected to the second gear and is coaxially arranged with the second gear. The second bevel gear meshes with the first bevel gear, and the second gear meshes with the second rack.

2. The driving structure for a vehicle refrigerator drawer according to claim 1, characterized in that: The support base has an inclined surface, and the slide rail is installed on the inclined surface.

3. The driving structure for a vehicle-mounted refrigerator drawer according to claim 1, characterized in that: The drive unit includes a motor and a coupling. One end of the coupling is connected to the front end of the transmission rod, and the other end of the coupling is connected to the output end of the motor.

4. A vehicle-mounted refrigerator, characterized in that, The driving structure for the vehicle refrigerator drawer as described in any one of claims 1-3.

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