Manual-automatic integrated drawer vehicle-mounted refrigerator

Abstract

The invention belongs to the technical field of vehicle-mounted refrigerators, and particularly relates to a manual-automatic integrated drawer vehicle-mounted refrigerator. 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 invention belongs to the technical field of vehicle-mounted refrigerators, and in particular relates to a manual-automatic integrated drawer vehicle-mounted refrigerator. Background Art

[0002] With the continuous development of new energy vehicles, automatic drawer-type car refrigerators have gradually become the choice of most new energy vehicles. They have the advantages of being smarter and more convenient, and have won rounds of applause from customers.

[0003] With the development and application of automatic drawer-type car refrigerators, more and more problems have been brought about. If the motor of the automatic drawer-type car refrigerator suddenly fails while the car is driving at high speed, the automatic drawer-type car refrigerator cannot open and close the refrigerator normally through the motor. If the refrigerator stops in the middle of the passenger passage at this time, it will cause inconvenience and safety hazards to the passengers in the car. At present, the design of automatic drawer-type car refrigerators uses the motor belt locking method to prevent the drawer from automatically opening and injuring passengers due to sudden braking or collision of the vehicle. Therefore, if the motor is damaged, the passengers in the car cannot manually push the drawer in. In order to solve the above problems, a manual-automatic integrated drawer car refrigerator is provided. Summary of the invention

[0004] In order to solve the defects and shortcomings of the prior art, the purpose of the present invention is to provide a manual-automatic integrated drawer car refrigerator with a simple structure, reasonable design and easy use. It uses an electromagnetic clutch as a conversion medium to connect the motor and the drawer, thereby avoiding the problem that the motor of the automatic drawer car refrigerator is damaged and the door cannot be opened and closed normally during the driving of the car.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it comprises a vehicle refrigerator shell, a storage drawer, a connecting buckle, a fixer, a transmission belt, a pulley, an electromagnetic clutch, and a servo motor; the storage drawer is movably connected to the interior of the vehicle refrigerator shell, a transmission belt is horizontally arranged at the lower end of the vehicle refrigerator shell, the right end of the transmission belt is sleeved on the pulley at the front end of the bottom of the vehicle refrigerator shell, the left end of the transmission belt is sleeved on the electromagnetic clutch, the electromagnetic clutch is connected to the servo motor at the rear of the vehicle refrigerator shell, a fixer is arranged in the middle of the transmission belt, and the fixing device is fixed to the vehicle refrigerator shell. The stator is connected to the connecting buckle at the bottom of the vehicle refrigerator shell; wherein the electromagnetic clutch is composed of a belt drive wheel, a conversion shaft, a bearing, a motor drive shaft, an electromagnet, a movable pin shaft, and a tension spring; a conversion shaft body is movably connected to the reserved groove inside the belt drive wheel through a bearing, and the upper end of the conversion shaft body is connected to the motor drive shaft; an electromagnet is embedded inside the conversion shaft body; a pair of movable pin shafts are connected to the bottom of the reserved groove inside the belt drive wheel through a tension spring, and the movable pin shaft is attracted by the electromagnet and plugged into the bottom of the conversion shaft body to realize the connection between the conversion shaft body and the belt drive wheel.

[0006] Preferably, the conversion shaft is a "convex" shaped structure, and the bearing is sleeved on the upper half of the conversion shaft, and is locked with the side wall of the reserved groove inside the belt drive wheel through the bearing, so that the lower half of the conversion shaft remains suspended.

[0007] Preferably, the bottom of the conversion shaft is provided with an annular plug-in groove corresponding to the movable pin shaft.

[0008] Preferably, the outer port of the annular plug-in slot is an arc-shaped chamfered structure, and a plurality of limiting edges are arranged in the slot.

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

[0010] Preferably, the movable pin is replaced by a limiting clip, and the limiting clip is clamped in a concave groove provided on the outer side of the lower half of the conversion shaft.

[0011] Preferably, the limiting clip is movably embedded in the side wall of the reserved groove inside the belt driving wheel, and a tension spring is connected to the outer side of the limiting clip.

[0012] Preferably, anti-slip prisms are provided on the inner side of the concave slot and the surface of the limiting clip.

[0013] Preferably, the limiting clip is an arc-shaped structure and maintains an arc with the concave slot.

[0014] After adopting the above structure, the beneficial effects of the present invention are: it uses an electromagnetic clutch as a conversion medium to connect the motor and the drawer; realizes the switching of the drawer's automatic and manual modes through the internal electromagnetic structure; and avoids the problem that the motor of the automatic drawer car refrigerator is damaged during the driving of the car and the door cannot be opened and closed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail through the following specific implementations and drawings.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the electromagnetic clutch 7 of the present invention; Figure 3 It is a schematic diagram of the annular plug-in groove 78 of the present invention; Figure 4 A top view of the present invention; Figure 5 It is a structural schematic diagram of a second specific implementation mode of the present invention; Figure 6 The structure of the second specific embodiment of the present invention is shown in FIG. Figure 2 ; Explanation of the accompanying drawings: vehicle refrigerator housing 1, storage drawer 2, connecting buckle 3, fixer 4, transmission belt 5, pulley 6, electromagnetic clutch 7, servo motor 8, belt drive wheel 71, conversion shaft 72, bearing 73, motor transmission shaft 74, electromagnet 75, movable pin 76, tension spring 77, annular plug-in groove 78, limiting edge 79, concave slot 80, limiting clip 81, tension spring 82. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the 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 present invention. 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 present invention.

[0018] 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 solutions 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. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4 As shown, this specific embodiment adopts the following technical scheme: it includes a vehicle refrigerator shell 1, a storage drawer 2, a connecting buckle 3, a fixer 4, a transmission belt 5, a pulley 6, an electromagnetic clutch 7, and a servo motor 8; the storage drawer 2 is movably connected to the interior of the vehicle refrigerator shell 1, and a transmission belt 5 is horizontally arranged at the lower end of the vehicle refrigerator shell 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 refrigerator shell 1, and 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 rear of the vehicle refrigerator shell 1. A fixer 4 is arranged in the middle of the transmission belt 5, and the fixer 4 is connected to the bottom of the vehicle refrigerator shell 1. The electromagnetic clutch 7 is connected with the connecting buckle 3; wherein, the electromagnetic clutch 7 is composed of a belt drive wheel 71, a conversion shaft 72, a bearing 73, a motor drive shaft 74, an electromagnet 75, a movable pin 76, and a tension spring 77; the belt drive wheel 71 has a conversion shaft 72 movably connected to the reserved groove inside through the bearing 73, and the upper end of the conversion shaft 72 is connected to the motor drive shaft 74; the conversion shaft 72 is inlaid with an electromagnet 75; the bottom of the reserved groove inside the belt drive wheel 71 is connected with a pair of movable pins 76 through a tension spring 77, and the movable pin 76 is attracted by the electromagnet 75 and plugged into the bottom of the conversion shaft 72, so as to realize the connection between the conversion shaft 72 and the belt drive wheel 71.

[0020] The conversion shaft 72 is a "convex"-shaped structure, and the bearing 73 is sleeved on the upper half of the conversion shaft 72, and is engaged with the side wall of the reserved groove inside the belt drive wheel 71 through the bearing 73, so that the lower half of the conversion shaft 72 remains suspended; the bottom of the conversion shaft 72 is provided with an annular plug-in groove 78 corresponding to the movable pin 76; In addition, the outer end of the annular plug-in slot 78 is an arc-shaped chamfered structure, and a plurality of 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 driving.

[0021] The working principle of this specific embodiment is: when the system detects that there is no abnormality in the servo motor 8, the electromagnet 75 is energized, and the magnetic force attracts the movable pin shaft 76 to the annular plug-in groove 78 corresponding to the conversion shaft body 72. When the motor rotates, the belt drive wheel 71 is driven to rotate through the movable pin shaft 76, thereby realizing the extension and retraction of the drawer; when the system detects that the servo motor 8 fails, the electromagnet 75 is powered off, the movable pin shaft 76 is pulled back by the tension spring 77, and the belt drive wheel 71 is disconnected from the conversion shaft body 72, so that the drawer can be pulled out and pushed back manually.

[0022] After adopting the above structure, the beneficial effects of this specific implementation are: it uses an electromagnetic clutch as a conversion medium to connect the motor and the drawer; realizes the switching of the drawer's automatic and manual modes through the internal electromagnetic structure; and avoids the problem of the automatic drawer car refrigerator's motor being damaged during the car's driving, and being unable to open and close the door normally. DETAILED DESCRIPTION

[0023] See also Figure 5 , Figure 6 The difference between this specific embodiment and the specific embodiment one is that: the movable pin shaft 76 is replaced by a limiting clip 81; the outer side of the lower half of the conversion shaft body is provided with an inner concave slot 80, and the inner side of the inner concave slot 80 is engaged with the limiting clip 81; the limiting clip 81 is movably embedded in the side wall of the reserved slot inside the belt driving wheel 71, and the outer side of the limiting clip 81 is connected to a tension spring 82.

[0024] Furthermore, anti-slip prisms are provided on the inner side of the inner concave slot 80 and the surface of the limiting clip 81 ; the limiting clip 81 is an arc-shaped structure and maintains an arc with the inner concave slot 80 .

[0025] It will be apparent 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 essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, 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 be included in the present invention.

[0026] 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 manual and automatic integrated drawer car refrigerator, Features: The invention comprises a vehicle refrigerator housing, a storage drawer, a connecting buckle, a fixer, a transmission belt, a pulley, an electromagnetic clutch and a servo motor; the storage drawer is movably connected to the vehicle refrigerator housing, a transmission belt is transversely arranged at the lower end of the vehicle refrigerator housing, the right end of the transmission belt is sleeved on the pulley at the front end of the bottom of the vehicle 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 rear of the vehicle refrigerator housing, a fixer is arranged in the middle of the transmission belt, and the fixer is connected to the connecting buckle at the bottom of the vehicle 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; a conversion shaft body is movably connected to the belt driving wheel through a bearing in a reserved groove inside the belt driving wheel, and the upper end of the conversion shaft body is connected to the motor transmission shaft; an electromagnet is inlaid inside the conversion shaft body; a pair of movable pin shafts are connected to the bottom of the reserved groove inside the belt driving wheel through a tension spring, and the movable pin shaft is attracted by the electromagnet and plugged into the bottom of the conversion shaft body to realize the connection between the conversion shaft body and the belt driving wheel.

2. The manual and automatic integrated drawer vehicle refrigerator according to claim 1, Features: The conversion shaft body is a "convex" shaped structure, and the bearing is sleeved on the upper half of the conversion shaft body, and is clamped with the side wall of the reserved groove inside the belt drive wheel through the bearing, so that the lower half of the conversion shaft body remains suspended.

3. The manual and automatic integrated drawer vehicle refrigerator according to claim 2, Features: The bottom of the conversion shaft body is provided with an annular plug-in groove corresponding to the movable pin shaft.

4. The manual and automatic integrated drawer vehicle refrigerator according to claim 3, Features: The outer end of the annular plug-in slot is an arc-shaped chamfered structure, and a plurality of limiting edges are arranged in the slot.

5. The manual and automatic integrated drawer vehicle refrigerator according to claim 1, Features: The electromagnet is connected to the servo motor control circuit to achieve synchronous linkage.

6. The manual and automatic integrated drawer vehicle refrigerator according to claim 1, Features: The movable pin shaft is replaced by a limiting clip, and the limiting clip is clamped in a concave clamping groove provided on the outer side of the lower half of the conversion shaft body.

7. The manual and automatic integrated drawer vehicle refrigerator according to claim 6, Features: The limiting clip is movably embedded in the side wall of the reserved groove inside the belt driving wheel, and a tension spring is connected to the outer side of the limiting clip.

8. The manual and automatic integrated drawer vehicle refrigerator according to claim 6, Features: The inner side of the concave slot and the surface of the limiting clip are provided with anti-slip prisms.

9. The manual and automatic integrated drawer vehicle refrigerator according to claim 6, Features: The limiting clip is an arc-shaped structure and maintains an arc with the concave slot.

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