Drawer type vehicle-mounted refrigerator with double-mode opening and closing door

Abstract

The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a drawer type vehicle-mounted refrigerator with double-mode opening and closing doors. The electromagnetic clutch consists of a belt driving wheel, a conversion shaft body, a bearing, a motor transmission shaft, an electromagnet, a movable pin shaft and an extension spring; a conversion shaft body is movably connected into a reserved groove in the belt driving wheel through a bearing, and the upper end of the conversion shaft body is connected with a motor transmission shaft. An electromagnet is embedded in the conversion shaft body; the bottom of a preformed groove in the belt driving wheel is connected with a pair of movable pin shafts through extension springs, the movable pin shafts are attracted by the electromagnets to be inserted into the bottom of the conversion shaft body, and connection between the conversion shaft body and the belt driving wheel is achieved. An electromagnetic clutch is used as a conversion medium for connecting a motor and a drawer; the switching between an automatic mode and a manual mode of the drawer is realized through an internal electromagnetic structure; the problems that a motor of an automatic drawer vehicle-mounted refrigerator is damaged and a door cannot be normally opened and closed in the automobile running process are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a drawer-type vehicle-mounted refrigerator with a dual-mode door opening and closing structure. Background Art

[0002] With the continuous development of new energy vehicles, automatic drawer-type vehicle-mounted refrigerators have gradually become the choice direction for most new energy vehicles. They have the advantages of being more intelligent and convenient, and have received enthusiastic applause from customers.

[0003] However, with the development and application of automatic drawer-type vehicle-mounted refrigerators, more and more problems have emerged. If the motor of the automatic drawer-type vehicle-mounted refrigerator suddenly fails during high-speed driving of the vehicle, the automatic drawer-type vehicle-mounted refrigerator cannot be normally opened and closed through the motor at this time. If the refrigerator stops in the middle of the passenger passage at this time, it will bring inconvenience and potential safety hazards to the passengers in the vehicle. Currently, the designs of automatic drawer-type vehicle-mounted refrigerators all use the method of motor with locking to prevent the drawer from automatically opening and hurting passengers caused by sudden braking or impact of the vehicle. Therefore, if the motor is damaged, the passengers in the vehicle cannot manually push the drawer inwards with force. To solve the above problems, a drawer-type vehicle-mounted refrigerator with a dual-mode door opening and closing structure is provided. Content of the Utility Model

[0004] To solve the defects and deficiencies of the prior art; the purpose of the present utility model is to provide a drawer-type vehicle-mounted refrigerator with a dual-mode door opening and closing structure, which is simple in structure, reasonable in design and convenient to use. It uses an electromagnetic clutch as the conversion medium for connecting the motor and the drawer; it can realize the switching between the automatic and manual modes of the drawer; and it can avoid the problem that the automatic drawer vehicle-mounted refrigerator cannot be normally opened and closed due to motor damage during vehicle driving.

[0005] To achieve the above object, the technical solution adopted by the present utility model is as follows: It includes a vehicle-mounted refrigerator housing, a storage drawer, a connecting buckle, a fixator, a transmission belt, a pulley, an electromagnetic clutch, and a servo motor; the storage drawer is movably clamped inside the vehicle-mounted refrigerator housing, a transmission belt is horizontally arranged at the lower end of the vehicle-mounted refrigerator housing, the right end of the transmission belt is sleeved on the pulley at the front end of the bottom of the vehicle-mounted refrigerator housing, the left end of the transmission belt is sleeved on the electromagnetic clutch, the electromagnetic clutch is connected to the servo motor at the tail of the vehicle-mounted refrigerator housing, a fixator is arranged in the middle of the transmission belt, and the fixator is connected to the connecting buckle at the bottom of the vehicle-mounted refrigerator housing; wherein, the electromagnetic clutch is composed of a belt driving wheel, a conversion shaft body, a bearing, a motor transmission shaft, an electromagnet, a movable pin shaft, and a tension spring; the conversion shaft body is movably connected to the inner reserved groove of the belt driving wheel through a bearing, the upper end of the conversion shaft body is connected to the motor transmission shaft; an electromagnet is embedded inside the conversion shaft body; a pair of movable pin shafts are connected to the bottom of the inner reserved groove of the belt driving wheel through a tension spring, and the movable pin shafts are attracted by the electromagnet and inserted into the bottom of the conversion shaft body to realize the connection between the conversion shaft body and the belt driving wheel.

[0006] Preferably, the conversion shaft body is of a "convex" shape structure, and the bearing is sleeved on the upper half section of the conversion shaft body and is kept clamped with the side wall of the inner reserved groove of the belt driving wheel through the bearing, so that the lower half section of the conversion shaft body is in a suspended state.

[0007] Preferably, an annular insertion groove corresponding to the movable pin shaft is arranged at the bottom of the conversion shaft body.

[0008] Preferably, the outer port of the annular insertion groove is of an arc chamfered edge structure, and several limiting edges are arranged in the groove.

[0009] Preferably, the electromagnet is connected to the control circuit of the servo motor to achieve synchronous linkage.

[0010] After adopting the above structure, the beneficial effects of the present utility model are as follows: It uses the electromagnetic clutch as the conversion medium for connecting the motor and the drawer; realizes the switching between the automatic and manual modes of the drawer through the internal electromagnetic structure; avoids the problem that the motor of the automatic drawer vehicle-mounted refrigerator is damaged during the driving of the vehicle and the door cannot be normally opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the present utility model will be described in detail by the following specific embodiments and the accompanying drawings.

[0012] Figure 1 It is a schematic structural diagram of the present utility model;

[0013] Figure 2 It is a schematic structural diagram of the electromagnetic clutch 7 of the present utility model;

[0014] Figure 3 Schematic diagram of the annular insertion slot 78 of the present utility model;

[0015] Figure 4 Top view of the present utility model;

[0016] Description of reference numerals: vehicle-mounted refrigerator housing 1, storage drawer 2, connecting buckle 3, holder 4, transmission belt 5, pulley 6, electromagnetic clutch 7, servo motor 8, belt drive pulley 71, conversion shaft body 72, bearing 73, motor transmission shaft 74, electromagnet 75, movable pin shaft 76, tension spring 77, annular insertion slot 78, limiting rib 79. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described below through specific embodiments shown in the drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model.

[0018] Here, it should also be noted that, in order to avoid obscuring the present utility model with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.

[0019] Refer to Figures 1 - 4As shown in the figure, the present specific embodiment adopts the following technical solutions: It includes a vehicle-mounted refrigerator housing 1, a storage drawer 2, a connecting buckle 3, a fixator 4, a transmission belt 5, a pulley 6, an electromagnetic clutch 7, and a servo motor 8; the storage drawer 2 is movably clamped inside the vehicle-mounted refrigerator housing 1, a transmission belt 5 is horizontally arranged at the lower end of the vehicle-mounted refrigerator housing 1, the right end of the transmission belt 5 is sleeved on the pulley 6 at the front end of the bottom of the vehicle-mounted refrigerator housing 1, the left end of the transmission belt 5 is sleeved on the electromagnetic clutch 7, the electromagnetic clutch 7 is connected to the servo motor 8 at the tail of the vehicle-mounted refrigerator housing 1, a fixator 4 is arranged in the middle of the transmission belt 5, and the fixator 4 is connected to the connecting buckle 3 at the bottom of the vehicle-mounted refrigerator housing 1; wherein, the electromagnetic clutch 7 is composed of a belt driving wheel 71, a conversion shaft body 72, a bearing 73, a motor transmission shaft 74, an electromagnet 75, a movable pin shaft 76, and a tension spring 77; the conversion shaft body 72 is movably connected to the inside of the reserved slot of the belt driving wheel 71 through the bearing 73, and the upper end of the conversion shaft body 72 is connected to the motor transmission shaft 74; an electromagnet 75 is embedded inside the conversion shaft body 72; a pair of movable pin shafts 76 are connected to the bottom of the reserved slot inside the belt driving wheel 71 through the tension spring 77, and the movable pin shafts 76 are attracted by the electromagnet 75 and inserted into the bottom of the conversion shaft body 72 to realize the connection between the conversion shaft body 72 and the belt driving wheel 71.

[0020] Wherein, the conversion shaft body 72 is of a "convex" shape structure, and the bearing 73 is sleeved on the upper half section of the conversion shaft body 72 and is kept clamped with the side wall of the reserved slot inside the belt driving wheel 71 through the bearing 73, so that the lower half section of the conversion shaft body 72 is in a suspended state; a ring-shaped insertion slot 78 corresponding to the movable pin shaft 76 is arranged at the bottom of the conversion shaft body 72;

[0021] In addition, the outer port of the ring-shaped insertion slot 78 is of an arc chamfered edge structure, and several limiting edges 79 are arranged in the slot; the electromagnet 75 and the servo motor 8 are connected to the same control circuit for synchronous drive.

[0022] The working principle of the present specific embodiment is as follows: When the system detects that the servo motor 8 is normal, the electromagnet 75 is powered on, and the magnetic force adsorbs the movable pin shaft 76 into the corresponding ring-shaped insertion slot 78 of the conversion shaft body 72. When the motor rotates, the belt driving wheel 71 is driven to rotate through the movable pin shaft 76, so as to realize the telescoping of the drawer; when the system detects a fault of the servo motor 8, the electromagnet 75 is powered off, the movable pin shaft 76 is pulled back by the tension spring 77, the connection between the belt driving wheel 71 and the conversion shaft body 72 is disconnected, and the drawer can be pulled out and pushed back manually.

[0023] After adopting the above structure, the beneficial effects of this specific embodiment are as follows: It uses an electromagnetic clutch as the conversion medium for connecting the motor to the drawer; realizes the switching between the automatic and manual modes of the drawer through the internal electromagnetic structure; and avoids the problem that the motor of the automatic drawer vehicle refrigerator is damaged during the driving of the vehicle and the door cannot be opened or closed normally.

[0024] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the 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 those skilled in the art.

Claims

1. A drawer-type in-vehicle refrigerator with dual-mode door opening and closing, characterized in that: It includes a vehicle-mounted refrigerator housing, a storage drawer, a connecting buckle, a fixator, a transmission belt, a pulley, an electromagnetic clutch, and a servo motor; the storage drawer is movably clamped inside the vehicle-mounted refrigerator housing, a transmission belt is horizontally arranged at the lower end of the vehicle-mounted refrigerator housing, the right end of the transmission belt is sleeved on the pulley at the front end of the bottom of the vehicle-mounted refrigerator housing, the left end of the transmission belt is sleeved on the electromagnetic clutch, the electromagnetic clutch is connected to the servo motor at the tail of the vehicle-mounted refrigerator housing, a fixator is arranged in the middle of the transmission belt, and the fixator is connected to the connecting buckle at the bottom of the vehicle-mounted refrigerator housing; wherein, the electromagnetic clutch is composed of a belt driving wheel, a conversion shaft body, a bearing, a motor transmission shaft, an electromagnet, a movable pin shaft, and a tension spring; the conversion shaft body is movably connected to the inner reserved groove of the belt driving wheel through the bearing, the upper end of the conversion shaft body is connected to the motor transmission shaft; the electromagnet is embedded inside the conversion shaft body; a pair of movable pin shafts are connected to the bottom of the inner reserved groove of the belt driving wheel through the tension spring, and the movable pin shafts are attracted by the electromagnet and inserted into the bottom of the conversion shaft body to realize the connection between the conversion shaft body and the belt driving wheel.

2. The drawer-type vehicle-mounted refrigerator with dual-mode door opening and closing according to claim 1, wherein: The conversion shaft body is of a "convex" shape structure, and the bearing is sleeved on the upper half of the conversion shaft body and is clamped with the side wall of the inner reserved groove of the belt driving wheel through the bearing, so that the lower half of the conversion shaft body is in a suspended state.

3. A drawer-type vehicle-mounted refrigerator with a dual-mode door opening and closing, characterized in that: A circular insertion groove corresponding to the movable pin shaft is arranged at the bottom of the conversion shaft body.

4. A drawer-type vehicle-mounted refrigerator with dual-mode door opening and closing, as claimed in claim 3, wherein: The outer port of the circular insertion groove is of an arc chamfered edge structure, and several limiting edges are arranged in the groove.

5. A drawer-type vehicle-mounted refrigerator with dual-mode door opening and closing, characterized in that: The electromagnet is connected to the control circuit of the servo motor to realize synchronous linkage.

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