CN109898945B - Switch mechanism, box body structure and refrigerator - Google Patents
Switch mechanism, box body structure and refrigerator Download PDFInfo
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- CN109898945B CN109898945B CN201910234811.0A CN201910234811A CN109898945B CN 109898945 B CN109898945 B CN 109898945B CN 201910234811 A CN201910234811 A CN 201910234811A CN 109898945 B CN109898945 B CN 109898945B
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Abstract
The invention provides a switching mechanism, a box body structure and a refrigerator, wherein the switching mechanism is arranged on the box body structure, the box body structure comprises a box body and a door body connected with the box body, the switching mechanism comprises a driving assembly, a driving device and an executing device, the driving assembly comprises the driving device and the executing device which are mutually connected, and the executing device can move under the driving of the driving device; one of the energy storage assembly and the driving assembly is arranged on the box body, the other one of the energy storage assembly and the driving assembly is arranged on the door body, and the energy storage assembly comprises an elastic element; in the working process of the opening and closing mechanism, the driving device drives the executing device to move towards the elastic element and contact with the elastic element, so that the elastic element deforms until the door body is separated from the box body. The switching mechanism provided by the invention can realize full-stroke automatic door opening, increase the door opening angle, improve the door opening speed and meet the requirement on the door opening speed in the door opening process.
Description
Technical Field
The invention relates to the technical field of transmission mechanisms, in particular to a switching mechanism, a box body structure and a refrigerator.
Background
In the large-volume refrigerator on the market at present, a door body, the load weight of the door body, the adsorption force of a magnetic adsorption type sealing strip and negative pressure generated after hot air enters the refrigerator body after the door is opened last time and contracts when encountering cold comprehensively lead a user to feed back that the door body is not easy to open.
Generally, when a user opens the refrigerator door body, three stages of force need to be overcome. The first stage overcomes the adsorption force of the magnetic adsorption type sealing strip and the negative pressure generated after the hot air enters the box body and contracts when encountering cold after the door is opened last time, and the force required to be overcome is the largest at the stage; when the door body is opened at an angle, the air pressure inside and outside the box body is balanced, the pressure disappears, and the absorption force attenuation is close to zero after the magnetic absorption type sealing strip is separated from the box body for a certain distance. The second stage needs to overcome the self-locking force of the door closer of the refrigerator door and the friction force of the hinge. In the third stage, the door body only has the friction force of the hinge after rotating and self-locking the refrigerator door closer. In summary, the force applied when the user opens the door is a varying force.
The problem of solving the electronic helping hand of refrigerator and opening the door in the prior art mainly has following two directions: the first is that a gear is driven by a motor, the gear drives a rack to move, and a door body is pushed open by the horizontal forward movement of the rack, so that the door opening with assistance is realized. The scheme is limited by the length of the rack, when the door is opened to a certain angle, the rack push rod is not in contact with the door body, the refrigerator does not work, the opening angle of the refrigerator is small, and a user often needs to open the door for the second time. The second is to open the door body using an actuator such as an electromagnetic solenoid. However, the electromagnetic solenoid has high speed and large impact force, and although the door opening angle is large, the electromagnetic solenoid is dangerous to use and bad in body feeling, and meanwhile, after the refrigerator door body opens, the inertia is large, and the door body rebounds.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, a first aspect of the invention proposes a switching mechanism.
A second aspect of the invention proposes a tank structure.
A third aspect of the present invention provides a refrigerator.
The invention provides a first aspect of a switch mechanism, which is arranged on a box body structure, wherein the box body structure comprises a box body and a door body connected with the box body; one of the energy storage assembly and the driving assembly is arranged on the box body, the other one of the energy storage assembly and the driving assembly is arranged on the door body, and the energy storage assembly comprises an elastic element; in the working process of the opening and closing mechanism, the driving device drives the executing device to move towards the elastic element and contact with the elastic element, so that the elastic element deforms until the door body is separated from the box body.
The switch mechanism provided by the invention is applied to a box body structure with a door body, and particularly is arranged on a refrigerator, one of a driving assembly and an energy storage assembly is arranged on the box body of the refrigerator, and the other is arranged on the door body of the refrigerator. In the process of opening the door of the refrigerator, in the first door opening stage, the driving device applies thrust to the actuating mechanism to enable the actuating mechanism to be in contact with the elastic element, and the thrust applied by the driving device is converted into elastic potential energy by utilizing the elastic deformation of the elastic element; in the second door opening stage, the driving device continues to apply thrust, the elastic element does not deform after the compression deformation reaches the limit value, the elastic element can be equal to the rigid connecting mechanism, at the moment, the execution device applies all thrust to the elastic element, a part of the thrust is converted into elastic potential energy to be stored, and the rest of the thrust is applied to the door body through the elastic element to push the refrigerator door body to move and drive the door body to cross the door closer to limit; and in the third door opening stage, the door body crosses the door closer for limitation, the resistance of the door body to move can be suddenly reduced, the elastic potential energy before the elastic element is released, the elastic element deforms to give a reaction force to the execution device, the reaction force gives a door opening acceleration to the door body, the refrigerator door body is opened to the maximum angle, and the full-stroke automatic door opening of the refrigerator is realized.
Specifically, the adsorption force of the magnetic adsorption type sealing strip and the negative pressure generated after hot air enters the box body and contracts when encountering cold after the door is opened last time need to be overcome in the first door opening stage, and the force needed to be overcome in the first door opening stage is the largest; the second door opening stage needs to overcome the self-locking force of a door closer of the refrigerator door body and the friction force of a hinge, and the force to be overcome is smaller than that in the first door opening stage; the third door opening phase requires overcoming the friction of the hinge, which is significantly less than the force to be overcome in the second door opening phase. Therefore, the switch mechanism provided by the invention converts part of the thrust applied by the driving device into elastic potential energy to be stored in the first door opening stage and the second door opening stage through the mutual matching of the driving assembly and the energy storage assembly, and at the moment that the door body crosses the door closer limit to enter the third door opening stage, the elastic element deforms to provide a reaction force for the execution device, so that the door body has a door opening acceleration, the door body is opened to the maximum angle, the full-stroke automatic door opening is realized, the door opening angle is increased, the door opening speed is improved, the uniform door opening in the first door opening stage and the second door opening stage is realized, the door is quickly opened in the third door opening stage, and the requirement on the door opening speed in the door opening process is.
According to the switch mechanism of the invention, the following additional technical features can be provided:
in the above technical solution, preferably, the energy storage assembly further includes: the elastic element is positioned in the slide rail; the sliding block is connected with the elastic element and can slide along the sliding rail under the action of the executing device so as to enable the elastic element to deform.
In this technical scheme, the energy storage subassembly still includes slide rail and the slider of mutually supporting, wherein, sets up elastic element in the slide rail to set up the slider at its tip. In the working process of the switch mechanism, the actuating device moves towards one side of the sliding block and is abutted against the sliding block, the sliding block is urged to move along the sliding rail, the elastic element is elastically deformed, and then part of thrust applied to the actuating device by the driving device is converted into elastic potential energy to be stored in the elastic element.
In any of the above technical solutions, preferably, the energy storage assembly further includes: the guide post is arranged in the slide rail, and the elastic element is sleeved on the guide post; and the cover plate is movably arranged at the position of the slide rail and is used for covering the slide rail.
In the technical scheme, a guide post is arranged in the slide rail, and an elastic element is sleeved on the guide post, so that the guide post plays a role in guiding when the elastic element generates elastic deformation; the cover plate is arranged near the sliding rail, specifically, one end of the cover plate is connected with the door body or the box body, the other end of the cover plate serves as a free end, the cover plate is adjusted to cover the sliding rail and the elastic element located inside the sliding rail, the elastic element in an elastic deformation state is prevented from being exposed, and the safety performance of the switch mechanism is improved.
In any of the above technical solutions, preferably, the driving assembly further includes: the driving device is positioned on the base; the transmission assembly is connected with the output end of the driving device; and the clutch gear set is connected with the transmission assembly and the executing device.
In the technical scheme, the driving assembly comprises a base, specifically, an upper base and a lower base are connected with each other to form an installation cavity, and the driving device, the transmission assembly and the clutch gear set are arranged in the installation cavity, so that the driving device, the transmission assembly and the clutch gear set are prevented from being exposed outside, and the service life of the driving assembly is ensured; the transmission assembly is connected with the output end of the driving device, the clutch gear set is connected with the transmission assembly and the executing device, transmission of output torque of the driving device is guaranteed, driving of the executing device is further guaranteed, and door opening or door closing is achieved.
In any of the above technical solutions, preferably, the transmission assembly includes: the worm is connected with the output end of the driving device; and the worm wheel is meshed with the worm and the clutch gear set.
In the technical scheme, in order to simplify the overall structure of the driving assembly and consider the limitation of the overall structure size and the space environment where the switching mechanism is located, a worm and a worm wheel which are mutually matched are selected as the transmission assembly so as to realize the transmission of the output torque of the driving device.
Specifically, the driving device is a driving motor, a worm is arranged on an output shaft of the driving motor, and the worm wheel is connected with the worm.
In any one of the above technical solutions, preferably, the clutch gear set includes: a drive shaft; the first clutch gear is sleeved on the transmission shaft and meshed with the turbine; the second clutch gear is sleeved on the transmission shaft and meshed with the rack structure of the executing device.
In the technical scheme, the clutch gear set comprises a transmission shaft, and a first clutch gear and a second clutch gear which are sleeved on the transmission shaft. Specifically, the first clutch gear is meshed with the turbine through the transmission gear, and the second clutch gear is meshed with a rack structure of the executing device; when the turbine drives the first clutch gear to rotate, the second clutch gear which is coaxial with the first clutch gear also rotates, and then the execution device is driven to move so as to drive the door body to be opened or closed.
It should be noted that the second clutch gear is an incomplete gear, that is, the second clutch gear has a radial direction that is not completely distributed with a tooth structure, but is partially disposed. After the actuating device moves to the maximum displacement, the tooth structure of the second clutch gear is separated from the rack structure of the actuating device, and the transmission of the torque of the driving device is disconnected.
In any of the above technical solutions, preferably, the driving assembly further includes: the resetting element is arranged on the base and is connected with the execution device; and under the condition that the executing device moves to the preset position, the tooth structure of the second clutch gear is separated from the rack structure, and the executing device moves away from the energy storage assembly under the action of the resetting element.
In the technical scheme, a reset element connected with an execution device is arranged on a base, and the reset element is arranged by adopting an elastic piece. In the working process of the opening and closing mechanism, the driving device drives the executing device to move so as to push the door body to open or close; when the actuating device moves to the maximum displacement, the tooth structure of the second clutch gear is separated from the rack structure, the transmission of the torque of the driving device is cut off, and the actuating device can return along the original path under the action of the reset element, so that the smooth execution of the next door opening or closing action is ensured. Specifically, the preset position is a position where the actuator is operated to a maximum stroke.
In any of the above technical solutions, preferably, the driving assembly further includes: the detection device is arranged on the base and the execution device and used for detecting the position of the execution device; and the controller is connected with the detection device and used for controlling the driving device to work according to the detection result of the detection device.
In the technical scheme, the base and the execution device are provided with detection devices, and a controller connected with the detection devices is arranged. In the working process of the switching mechanism, the position of the actuating device is detected through the detection device so as to know whether the door opening or closing action is finished; when the detection device detects that the door opening or closing action is finished, the controller controls the driving device to stop working, otherwise, the driving device is controlled to continue working until the door opening or closing action is finished.
In any one of the above technical solutions, preferably, the detection device includes: the Hall sensor is arranged on the base and connected with the controller; the magnetic part is arranged on the execution device and can move along with the execution device; during the movement of the executing device, the position of the magnetic part is detected through the Hall sensor, so that the controller controls the driving device to work according to the position of the magnetic part.
In the technical scheme, the detection device comprises a Hall sensor and a magnetic part which are matched with each other. The Hall sensor is arranged on the positioning control board and is connected with the controller; the magnetic part is arranged on the execution device and can move along with the execution device. In the process that the actuating device is driven by the driving device to move so as to complete the door opening action, the magnetic piece moves along with the actuating device. When the magnetic part moves to the position near the Hall sensor, the Hall sensor detects the magnetic part to know the movement stroke of the execution device, and the controller controls the driving device to stop working according to the movement stroke of the execution device to complete the door opening action.
In any one of the above technical solutions, preferably, the detection device includes: the travel switch is arranged on the base and connected with the controller; wherein, in the process of executing the device motion, the controller controls the driving device to work through the travel switch.
In the technical scheme, the device comprises a travel switch. Specifically, the travel switch is arranged on the base and connected with the controller, in the process that the driving device drives the executing device to move so as to complete the door opening action, when the executing device moves to the position near the travel switch, the travel switch detects the executing device so as to obtain the movement travel of the executing device, and the controller controls the driving device to stop working according to the movement travel of the executing device so as to complete the door opening action.
A second aspect of the present invention provides a box structure, including: a box body; the door body is connected with the box body; the opening and closing mechanism is arranged on the box body and the door body; the energy storage assembly is arranged on the door body under the condition that the driving assembly is arranged on the box body; based on drive assembly sets up under the condition of the door body, energy storage assembly sets up on the box.
The box structure provided by the invention comprises the switch mechanism according to any one of the technical schemes of the first aspect of the invention, so that the box structure has all the beneficial effects of the switch mechanism, and further description is omitted.
In addition, when the driving assembly is arranged on the box body, the energy storage assembly is connected with the door body to drive the door body to move; when the driving assembly is arranged on the door body, the energy storage assembly is connected with the box body to reversely drive the door body to move.
A third aspect of the invention provides a refrigerator comprising a switch mechanism as in any one of the first aspects of the invention; or the case structure of the second aspect of the present invention, has all the advantages of the above-mentioned switch mechanism, and therefore, the detailed description thereof is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an exploded view of a drive assembly in a switching mechanism in accordance with one embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the energy storage assembly in the switching mechanism of one embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the energy storage assembly shown in FIG. 2;
FIG. 4 is a schematic structural view of a case structure of one embodiment of the present invention;
FIG. 5 is a schematic view of the door opening process of the cabinet structure according to one embodiment of the present invention;
FIG. 6 is a schematic view of the door opening process of the cabinet structure according to one embodiment of the present invention;
fig. 7 is a schematic view of the door opening process of the cabinet structure according to one embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:
the device comprises a switching mechanism 1, a 12 driving assembly, a 122 driving device, a 124 executing device, an 126 upper base, a 128 lower base, a 130 transmission assembly, a 132 clutch gear set, a 134 worm, a 136 turbine, a 138 transmission gear, a 140 transmission shaft, a 142 first clutch gear, a 144 second clutch gear, a 146 reset element, a 148 Hall sensor, a 150 magnetic part, a 152 positioning control plate, a 162 elastic element, a 164 slide rail, a 166 slide block, a 168 guide column, a 170 cover plate, a 100 box body structure, a 102 box body and a 104 door body.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The following describes a switching mechanism 1, a cabinet structure 100, and a refrigerator according to some embodiments of the present invention with reference to fig. 1 to 7.
The invention provides a first aspect of a switch mechanism 1, which is arranged on a box body structure 100, wherein the box body structure 100 comprises a box body 102 and a door body 104 connected with the box body 102, as shown in fig. 1 to 4, the switch mechanism 1 comprises a driving assembly 12, the driving assembly 12 comprises a driving device 122 and an executing device 124 which are connected with each other, and the executing device 124 can move under the driving of the driving device 122; one of the energy storage assembly and the driving assembly 12 is arranged on the box body 102, and the other is arranged on the door body 104, and the energy storage assembly comprises an elastic element 162; during the operation of the opening and closing mechanism 1, the driving device 122 drives the actuating device 124 to move toward the elastic element 162 and contact with the elastic element 162, so that the elastic element 162 deforms until the door body 104 is separated from the box body 102.
The switch mechanism 1 provided by the invention is applied to a box body structure 100 with a door body 104, and is specifically arranged on a refrigerator, one of a driving assembly 12 and an energy storage assembly is arranged on a box body 102 of the refrigerator, and the other is arranged on the door body 104 of the refrigerator. In the process of opening the door of the refrigerator, in the first door opening stage, the driving device 122 applies a pushing force to the actuating mechanism, so that the actuating mechanism is in contact with the elastic element 162, and the pushing force applied by the driving device 122 is converted into elastic potential energy by using the elastic deformation of the elastic element 162; during the second door opening stage, the driving device 122 continues to apply a thrust, the elastic element 162 does not deform after the compression deformation reaches a limit value, the elastic element 162 can be equal to a rigid connection mechanism, at this time, the actuating device 124 applies all the thrust to the elastic element 162, a part of the thrust is converted into elastic potential energy to be stored, and the rest of the thrust is applied to the door body 104 through the elastic element 162 to push the refrigerator door body 104 to move and drive the door body 104 to cross the door closer to limit; at the third door opening stage, the door body 104 crosses the door closer limit, the resistance to the movement of the door body 104 is suddenly reduced, the elastic potential energy before the elastic element 162 is released, the elastic element 162 deforms to provide a reaction force for the actuating device 124, the reaction force provides a door opening acceleration for the door body 104, the refrigerator door body 104 is opened to the maximum angle, and the full-stroke automatic door opening of the refrigerator is realized.
Specifically, the first door opening stage needs to overcome the adsorption force of the magnetic adsorption type sealing strip and the negative pressure generated after the hot air enters the box body 102 and contracts when encountering cold after the door is opened last time, and the force needed to be overcome at this stage is the largest; the second door opening stage needs to overcome the self-locking force of the door closer of the refrigerator door body 104 and the friction force of the hinge, and is smaller than the force to be overcome in the first door opening stage; the third door opening phase requires overcoming the friction of the hinge, which is significantly less than the force to be overcome in the second door opening phase. Therefore, the switch mechanism 1 provided by the present invention converts a part of the thrust applied by the driving device 122 into elastic potential energy for storage in the first door opening stage and the second door opening stage through the mutual cooperation of the driving component 12 and the energy storage component, and at the moment that the door body 104 crosses the door closer limit and enters the third door opening stage, the elastic element 162 deforms to provide a reaction force to the actuating device 124, so that the door body 104 has a door opening acceleration, the door body 104 is opened to a maximum angle, the full-stroke automatic door opening is realized, the door opening angle is increased, the door opening speed is increased, the uniform door opening in the first door opening stage and the second door opening stage is realized, and the third door opening stage opens the door quickly, so as to meet the requirement for the door opening speed in the door.
In one embodiment of the present invention, preferably, as shown in fig. 2 and 3, the energy storage assembly further includes: the sliding rail 164, the elastic element 162 is located in the sliding rail 164; and a sliding block 166 connected with the elastic element 162, wherein the sliding block 166 can slide along the sliding rail 164 under the action of the actuator 124, so that the elastic element 162 is deformed.
In this embodiment, the energy storage assembly further comprises a sliding rail 164 and a sliding block 166 cooperating with each other, wherein the elastic element 162 is arranged inside the sliding rail 164 and the sliding block 166 is arranged at an end thereof. During the operation of the switch mechanism 1, the actuator 124 moves toward the side of the slider 166 and abuts against the slider 166, and the slider 166 is urged to move along the slide rail 164, so that the elastic element 162 is elastically deformed, and a part of the pushing force applied to the actuator 124 by the driving device 122 is converted into elastic potential energy which is stored in the elastic element 162.
In one embodiment of the present invention, preferably, as shown in fig. 2 and 3, the energy storage assembly further includes: the guide column 168 is arranged in the slide rail 164, and the elastic element 162 is sleeved on the guide column 168; the cover plate 170 is movably disposed at the position of the slide rail 164 for covering the slide rail 164.
In this embodiment, a guiding column 168 is disposed in the sliding rail 164, and the elastic element 162 is sleeved on the guiding column 168, so that the guiding column 168 plays a guiding role when the elastic element 162 is elastically deformed; the cover plate 170 is disposed near the slide rail 164, specifically, one end of the cover plate 170 is connected to the door body 104 or the box body 102, and the other end is used as a free end, and the cover plate 170 is adjusted to cover the slide rail 164 and the elastic element 162 located inside the slide rail 164, so as to prevent the elastic element 162 in an elastic deformation state from being exposed, and improve the safety performance of the switch mechanism 1.
In one embodiment of the present invention, preferably, as shown in fig. 1, the driving assembly 12 further includes: a base on which the driving device 122 is located; a transmission assembly 130 connected with the output end of the driving device 122; the clutch gear set 132 is connected with the transmission assembly 130 and the actuator 124.
In this embodiment, the driving assembly 12 includes a base, specifically, the upper base 126 and the lower base 128 are connected to form a mounting cavity, and the driving device 122, the transmission assembly 130 and the clutch gear set 132 are disposed in the mounting cavity, so as to prevent them from being exposed outside, and ensure the service life of the driving assembly 12; the transmission assembly 130 is connected with the output end of the driving device 122, and the clutch gear set 132 is connected with the transmission assembly 130 and the actuating device 124, so as to ensure the transmission of the output torque of the driving device 122, further ensure the driving of the actuating device 124, and realize the door opening or closing action.
In one embodiment of the present invention, preferably, as shown in fig. 1, the transmission assembly 130 includes: a worm 134 connected to the output of the drive 122; the worm gear 136 is meshed with the worm 134 and the clutch gear set 132.
In this embodiment, in order to simplify the overall structure of the driving assembly 12 and take into consideration the limitations of the overall structure size and the space environment where the switch mechanism 1 is located, the worm 134 and the worm wheel 136 which are adapted to each other are selected as the transmission assembly 130 to realize the transmission of the output torque of the driving device 122.
Specifically, the driving device 122 is a driving motor, a worm 134 is disposed on an output shaft of the driving motor, and a worm gear 136 is connected to the worm 134.
In one embodiment of the present invention, preferably, as shown in fig. 1, the clutch gear set 132 includes: a drive shaft 140; a first clutch gear 142 sleeved on the transmission shaft 140 and engaged with the turbine 136; the second clutch gear 144 is sleeved on the transmission shaft 140 and engaged with the rack structure of the actuator 124.
In this embodiment, the clutch gear set 132 includes a transmission shaft 140, and a first clutch gear 142 and a second clutch gear 144 sleeved on the transmission shaft 140. Specifically, the first clutch gear 142 is engaged with the turbine 136 through the transmission gear 138, and the second clutch gear 144 is engaged with the rack structure of the actuator 124; when the turbine 136 drives the first clutch gear 142 to rotate, the second clutch gear 144, which is coaxial with the first clutch gear 142, also rotates to drive the actuator 124 to move, so as to drive the door 104 to open or close.
It should be noted that the second clutch gear 144 is an incomplete gear, that is, the second clutch gear 144 has a radial direction that is not completely distributed with a tooth structure, but is partially disposed. After the actuator 124 moves to the maximum displacement, the tooth structure of the second clutch gear 144 is disengaged from the rack structure of the actuator 124, and the transmission of the torque of the driving device 122 is disconnected.
In one embodiment of the present invention, preferably, as shown in fig. 1, the driving assembly 12 further includes: a reset element 146 disposed on the base and connected to the actuator 124; wherein, based on the situation that the actuator 124 moves to the preset position, the tooth structure of the second clutch gear 144 is separated from the rack structure, and the actuator 124 moves away from the energy storage assembly under the action of the reset element 146.
In this embodiment, a restoring element 146 connected to the actuator 124 is disposed on the base, and the restoring element 146 is disposed by an elastic member. In the working process of the opening and closing mechanism 1, the driving device 122 drives the actuating device 124 to move so as to push the door body 104 to open or close; when the actuator 124 moves to the maximum displacement, the tooth structure of the second clutch gear 144 is separated from the rack structure, and the transmission of the torque of the driving device 122 is disconnected, and at this time, the actuator 124 can return along the original path under the action of the reset element 146, so as to ensure the smooth execution of the next door opening or closing action. Specifically, the preset position is a position where the actuator 124 is operated to a maximum stroke.
In one embodiment of the present invention, preferably, as shown in fig. 1, the driving assembly 12 further includes: a detecting device, disposed on the base and the executing device 124, for detecting a position of the executing device 124; and the controller is connected with the detection device and is used for controlling the driving device 122 to work according to the detection result of the detection device.
In this embodiment, a detection device is provided on the base and actuator 124, and a controller connected to the detection device is provided. In the working process of the switch mechanism 1, the position of the actuating device 124 is detected by the detection device so as to know whether the door opening or closing action is finished; when the detection device detects that the door opening or closing motion is completed, the controller controls the driving device 122 to stop working, otherwise, the driving device 122 is controlled to continue working until the door opening or closing motion is completed.
In one embodiment of the present invention, preferably, as shown in fig. 1, the detection device includes: the Hall sensor 148 is arranged on the base and connected with the controller; the magnetic part 150 is arranged on the execution device 124, and the magnetic part 150 can move along with the execution device 124; wherein, during the movement of the actuator 124, the position of the magnetic member 150 is detected by the hall sensor 148, so that the controller controls the driving device 122 to operate according to the position of the magnetic member 150.
In this embodiment, the detection means comprises a cooperating hall sensor 148 and a magnetic member 150. Wherein, the hall sensor 148 is arranged on the positioning control board 152 and connected with the controller; the magnetic member 150 is disposed on the actuator 124, and the magnetic member 150 can move with the actuator 124. During the process that the actuating device 124 is driven by the driving device 122 to complete the door opening action, the magnetic member 150 moves along with the actuating device 124. When the magnetic member 150 moves to the vicinity of the hall sensor 148, the hall sensor 148 detects the magnetic member 150 to know the movement stroke of the actuator 124, and the controller controls the driving device 122 to stop working according to the movement stroke of the actuator 124 to complete the door opening action.
In one embodiment of the present invention, preferably, the detection device includes: the travel switch is arranged on the base and connected with the controller; wherein, during the movement of the executing device 124, the controller controls the driving device 122 to work through the travel switch.
In this embodiment, a travel switch is included. Specifically, the travel switch is disposed on the base and connected to the controller, and in a process that the driving device 122 drives the actuating device 124 to move to complete the door opening operation, when the actuating device 124 moves to a position near the travel switch, the travel switch detects the actuating device 124 to know a movement travel of the actuating device 124, and the controller controls the driving device 122 to stop working according to the movement travel of the actuating device 124 to complete the door opening operation.
A second aspect of the present invention proposes a tank structure 100, as shown in fig. 4 to 7, comprising: a case 102; the door body 104 is connected with the box body 102; the opening and closing mechanism 1 according to any one of the first aspect of the present invention, wherein the opening and closing mechanism 1 is provided on the door body 104 and the cabinet 102; based on the condition that the driving assembly 12 is arranged on the box body 102, the energy storage assembly is arranged on the door body 104; under the condition that the driving assembly 12 is arranged on the door body 104, the energy storage assembly is arranged on the box body 102.
The box structure 100 according to the present invention includes the switch mechanism 1 according to any one of the first aspect of the present invention, so that all the advantages of the switch mechanism 1 are provided, and thus, the detailed description thereof is omitted.
In addition, when the driving assembly 12 is disposed on the box 102, the energy storage assembly is connected to the door 104 to drive the door 104 to move; when the driving assembly 12 is disposed on the door 104, the energy storage assembly is connected to the box 102 to reversely drive the door 104 to move. Specifically, the switch mechanism 1 may be provided in the middle, upper, or lower portion of the case 102.
A third aspect of the present invention provides a refrigerator comprising a switching mechanism 1 as in any one of the first aspect of the present invention; or the case structure 100 of the second aspect of the present invention, has all the advantageous effects of the above-described opening and closing mechanism 1, and thus, will not be described in detail.
Compared with the driving mode that the existing motor is matched with a gear and rack structure, the switching mechanism 1 provided by the invention increases the motion of the energy storage assembly matched with the driving assembly 12, increases the door opening angle and improves the door opening speed; compared with the existing door opening mode of the electromagnetic solenoid, the door can be opened at a uniform speed in the early stage, the refrigerator is accelerated after being subjected to self locking, and the door opening force is relatively small because the friction force of the hinge shaft is only required to be overcome in the stage, the acceleration impact force is small, and the door opening is gentle.
In an embodiment, the case structure 100 of the present invention is a refrigeration device, and more particularly, a refrigerator. In the process of opening the door of the refrigerator, the door opening process is mainly divided into three door opening stages. The first door opening stage needs to overcome the adsorption force of the magnetic adsorption type sealing strip and the negative pressure generated after hot air enters the box body 102 and contracts when encountering cold after the door is opened last time, and the force needed to be overcome at this stage is the largest; the second door opening stage needs to overcome the self-locking force of the door closer of the refrigerator door body 104 and the friction force of the hinge, and is smaller than the force to be overcome in the first door opening stage; the third door opening phase requires overcoming the friction of the hinge, which is significantly less than the force to be overcome in the second door opening phase. Therefore, the switch mechanism 1 provided by the present invention converts a part of the pushing force applied by the driving device 122 into elastic potential energy for storage in the first door opening stage and the second door opening stage through the mutual cooperation of the driving assembly 12 and the energy storage assembly, and at the moment that the door body 104 crosses the door closer limit and enters the third door opening stage, the elastic element 162 deforms to provide a reaction force to the actuating device 124, so that the door body 104 has a door opening acceleration, the door body 104 is opened to a maximum angle, the rapid door opening is realized, the door opening angle of the refrigerator is enlarged, and the problems of the door opening angle and the door opening speed in the door opening process of the refrigerator are solved.
In a specific embodiment, as shown in fig. 4, a base is arranged on the door body 104, a driving motor is arranged on the base, a worm 134 is arranged on an output shaft of the driving motor, a worm wheel 136 is engaged with the worm 134 and a transmission gear 138, the transmission gear 138 is engaged with a first clutch gear 142, a second clutch gear 144 is coaxially arranged with the first clutch gear 142 and is engaged with a rack push rod, so as to form a torque transmission system, and ensure transmission of torque of the driving motor; a slide rail 164 is arranged on the door body 104, a guide column 168 and an elastic element 162 sleeved on the guide column 168 are arranged in the slide rail 164, and a slide block 166 is arranged at one end of the elastic element 162 close to the box body 102; the elastic element 162 can be elastically deformed under the action of the sliding block 166 and the rack push rod; the shell is provided with a positioning control plate 152, the positioning control plate 152 is provided with a Hall sensor 148, the rack push rod is provided with a magnetic part 150, the Hall sensor 148 is connected with a controller, and the controller acquires the position of the door body 104 through the mutual matching of the Hall sensor 148 and the magnetic part 150 so as to control the work of the driving motor.
Before the refrigerator is opened, as shown in fig. 5, the energy storage mechanism is not in contact with the push rod, and a certain gap is left. In the process of opening the door of the refrigerator, the torque of the driving motor is transmitted through the worm 134, the worm wheel 136, the transmission gear 138 and the clutch gear set 132 to drive the rack push rod to move, the rack push rod is in contact with the sliding block 166 of the energy storage assembly to push the sliding block 166 to move along the sliding rail 164, the elastic element 162 is compressed to deform, and partial thrust of the rack push rod is converted into elastic potential energy to complete energy storage. Then the driving motor continues to rotate and pushes the rack push rod to continue to move along the door opening direction, as shown in fig. 6, at this time, the sliding block 166 is in contact with the door body 104, after the elastic element 162 is compressed and deformed to reach the limit value, the elastic element 162 is not deformed, the elastic element 162 can be equivalent to a rigid connecting mechanism, the driving mechanism gives all pushing force to the energy storage assembly, a part of the pushing force is converted into elastic potential energy to be stored, and the rest of the pushing force is applied to the refrigerator door body 104 through the energy storage assembly to push the refrigerator door body 104. As shown in fig. 7, when the door 104 is moved to the range where the door has fallen off, the door closer self-locking force disappears, and the door opening resistance only remains the friction force of the hinge shaft or the sliding rail 164. At this time, the pressure applied to the elastic element 162 disappears, the elastic element 162 is to be restored to the free state, the stored potential energy of the elastic element 162 is released instantly, and under the reaction force of the rack push rod, the door body 104 has a door opening acceleration to push the refrigerator door body 104 to move rapidly, so that the door body 104 is opened to the limit position. When the rack push rod runs to the maximum stroke, the Hall element detects a signal of the magnetic part 150, and the controller controls the driving motor to stop working. At the same time, the tooth structure of the second clutch gear 144 is disengaged from the rack push rod, which is reset by the reset element 146.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. The utility model provides an on-off mechanism, sets up in the box is structural, the box structure include the box and with the door body that the box is connected, its characterized in that, on-off mechanism includes:
the driving assembly comprises a driving device and an executing device which are connected with each other, and the executing device can move under the driving of the driving device;
one of the energy storage assembly and the driving assembly is arranged on the box body, the other one of the energy storage assembly and the driving assembly is arranged on the door body, and the energy storage assembly comprises an elastic element;
in the working process of the opening and closing mechanism, the driving device drives the actuating device to move towards the elastic element and contact with the elastic element so that the elastic element deforms until the door body is separated from the box body, and at the moment when the door body crosses the limit of the door closer, the elastic element deforms to provide a reaction force for the actuating device, so that the door body has an opening acceleration.
2. The switch mechanism of claim 1, wherein the energy storage assembly further comprises:
the elastic element is positioned in the sliding rail;
the sliding block is connected with the elastic element and can slide along the sliding rail under the action of the executing device, so that the elastic element deforms.
3. The switch mechanism of claim 2, wherein the energy storage assembly further comprises:
the guide post is arranged in the slide rail, and the elastic element is sleeved on the guide post;
and the cover plate is movably arranged at the position of the slide rail and is used for covering the slide rail.
4. The switch mechanism of any one of claims 1 to 3, wherein the drive assembly further comprises:
the driving device is positioned on the base;
the transmission assembly is connected with the output end of the driving device;
and the clutch gear set is connected with the transmission assembly and the executing device.
5. The switch mechanism of claim 4, wherein the transmission assembly comprises:
the worm is connected with the output end of the driving device;
and the worm wheel is meshed with the worm and the clutch gear set.
6. The switch mechanism of claim 5, wherein the clutch gear set comprises:
a drive shaft;
the first clutch gear is sleeved on the transmission shaft and meshed with the turbine;
the second clutch gear is sleeved on the transmission shaft and meshed with the rack structure of the executing device.
7. The switch mechanism of claim 6, wherein the drive assembly further comprises:
the resetting element is arranged on the base and is connected with the execution device;
and under the condition that the actuating device moves to a preset position, the tooth structure of the second clutch gear is separated from the rack structure, and the actuating device moves away from the energy storage assembly under the action of the resetting element.
8. The switch mechanism of claim 4, wherein the drive assembly further comprises:
the detection device is arranged on the base and the execution device and used for detecting the position of the execution device;
and the controller is connected with the detection device and used for controlling the driving device to work according to the detection result of the detection device.
9. The switch mechanism of claim 8, wherein said detection means comprises:
the Hall sensor is arranged on the base and connected with the controller;
the magnetic part is arranged on the execution device and can move along with the execution device;
in the process of movement of the executing device, the position of the magnetic part is detected through the Hall sensor, so that the controller controls the driving device to work according to the position of the magnetic part.
10. The switch mechanism of claim 8, wherein said detection means comprises:
the travel switch is arranged on the base and connected with the controller;
and the controller controls the driving device to work through the travel switch in the movement process of the executing device.
11. A tank structure, comprising:
a box body;
the door body is connected with the box body; and
the opening and closing mechanism according to any one of claims 1 to 10, which is provided on the cabinet and the door body;
the energy storage assembly is arranged on the door body under the condition that the driving assembly is arranged on the box body;
based on drive assembly set up in under the condition of the door body, energy storage assembly set up in on the box.
12. A refrigerator, characterized by comprising:
the switch mechanism of any one of claims 1 to 10; or
The cabinet structure as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234811.0A CN109898945B (en) | 2019-03-26 | 2019-03-26 | Switch mechanism, box body structure and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234811.0A CN109898945B (en) | 2019-03-26 | 2019-03-26 | Switch mechanism, box body structure and refrigerator |
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| CN109898945A CN109898945A (en) | 2019-06-18 |
| CN109898945B true CN109898945B (en) | 2021-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212592B (en) * | 2019-07-12 | 2022-02-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112252889B (en) * | 2019-07-22 | 2022-02-11 | 海信（山东）冰箱有限公司 | Control method for opening and closing door device of refrigerator and refrigerator |
| CN110887337A (en) * | 2019-10-18 | 2020-03-17 | 珠海格力电器股份有限公司 | Refrigerator door opening and closing control method based on angle and angular velocity, computer readable storage medium and refrigerator |
| CN111042694A (en) * | 2019-12-24 | 2020-04-21 | 长虹美菱股份有限公司 | Automatic door opening and closing device for refrigerator and refrigerator based on same |
| CN111561802B (en) * | 2020-04-13 | 2021-11-12 | 合肥美的电冰箱有限公司 | Door assembly and storage cabinet |
| CN113482476B (en) * | 2021-07-17 | 2023-02-03 | 广东东泰五金精密制造有限公司 | A press and open resetting means for furniture |
| CN115354934A (en) * | 2022-09-22 | 2022-11-18 | 厦门市美头山五金制造有限公司 | Automatic door closing device |
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| CN109898945A (en) | 2019-06-18 |
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