CN117739602A - Slowly lowering structure of vehicle-mounted refrigerator door - Google Patents

Abstract

The invention discloses a slow descending structure of a vehicle-mounted refrigerator door body, which comprises a box body and a door body arranged at an opening at the top of the box body, wherein a damping hinge shaft for rotationally connecting one side edge of the door body and the box body is arranged between the other side edge of the door body and the box body, and a buckling structure and a door closing auxiliary structure for sucking the door body when the door is closed so as to smoothly buckle the buckling structure. The invention has the advantages of slowly lowering the door body and smoothly buckling the door body.

Description

Slowly lowering structure of vehicle-mounted refrigerator door

Technical Field

The invention relates to the technical field of vehicle-mounted refrigerators, in particular to a slow descending structure of a vehicle-mounted refrigerator door body.

Background

In the existing vehicle-mounted refrigerator design, the direct hinging mode of the door body and the rotating shaft is simple, but a plurality of inconveniences and risks exist. Due to the lack of an effective descent control mechanism, a user may encounter a door body that suddenly falls when closing the refrigerator door, which not only generates unpleasant and large noise to affect user experience, but also accelerates the damage of the door body and the connecting piece thereof due to the excessive application of impact force, thereby reducing the overall service life of the product.

Furthermore, abrupt closure of the refrigerator door may also constitute a safety hazard. This risk is particularly acute when the rapidly falling door body may pinch the user's fingers during movement of the vehicle or on an unstable ground, especially when operating in a small space.

In addition, the door body of the vehicle-mounted refrigerator is generally provided with a buckling structure, and a certain force is required to be applied to buckle the door body. However, although the conventional door body slowly-descending structure can slowly-descend the door body, the door body is difficult to effectively cooperate with a buckling mechanism, so that the impact force of the door body slowly-descending structure when the door body of the vehicle-mounted refrigerator falls is too small, and the buckling structure is too small in stress, so that the door body of the vehicle-mounted refrigerator cannot be smoothly and automatically buckled, and the use requirement cannot be met.

Accordingly, there is a need for further improvements and refinements of the prior art to overcome these shortcomings, and the present invention is based on this circumstance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a vehicle-mounted refrigerator door slow-descending structure which can slowly descend a door body and smoothly buckle the door body.

The invention is realized by the following technical scheme:

in order to solve the technical problems, the invention provides a slow descending structure of a vehicle-mounted refrigerator door body, which comprises a door body and a door body arranged at an opening at the top of the door body, wherein a damping hinge shaft for rotationally connecting one side edge of the door body and the door body is arranged between the other side edge of the door body and the door body, and a buckling structure and a door closing auxiliary structure for sucking the door body when the door is closed so as to enable the buckling structure to be buckled smoothly.

In order to further solve the technical problem to be solved, the invention provides the vehicle-mounted refrigerator door slow-descending structure, wherein the damping hinge shaft is a unidirectional damping hinge shaft, and the door body is subjected to damping action when rotating towards the closing direction.

In order to further solve the technical problem to be solved, the invention provides a slow descending structure of a vehicle-mounted refrigerator door body, which comprises a buckling groove arranged on the refrigerator body and an elastic buckling assembly arranged on the door body and capable of being buckled with the buckling groove.

In order to further solve the technical problem to be solved, the invention provides the slow descending structure of the vehicle-mounted refrigerator door body, wherein the elastic buckle assembly comprises a buckle which is rotationally connected to the door body, and an elastic reset piece for resetting the buckle is arranged between the buckle and the door body.

In order to further solve the technical problem to be solved, the door closing auxiliary structure comprises a first magnetic attraction piece arranged on the door body and a second magnetic attraction piece arranged on the door body, and in the closing process of the door body, the first magnetic attraction piece can be close to the second magnetic attraction piece and attract each other, so that the door body is accelerated to be closed, and the buckling structure is buckled smoothly.

In order to further solve the technical problem to be solved, in the slow descending structure of the vehicle-mounted refrigerator door body, one of the first magnetic attraction piece and the second magnetic attraction piece is a magnet or an iron sheet, and the other is an electromagnet.

In order to further solve the technical problem to be solved, in the slow descending structure of the vehicle-mounted refrigerator door body, a sensor component for detecting the opening and closing state of the door body is arranged between the door body and the refrigerator body, and the electromagnet is connected with a control component which is in communication connection with the sensor component, so that the control component can control the on-off of the electromagnet according to the opening and closing state of the door body.

In order to further solve the technical problem to be solved, the sensor assembly comprises a door opening sensor and a door closing sensor which are arranged on the refrigerator body and face one side edge of the door body, and the door opening sensor is positioned above the door closing sensor, so that the door opening sensor is triggered firstly and then the door closing sensor is triggered in the closing process of the door body.

In order to further solve the technical problem to be solved, in the slow descending structure of the vehicle-mounted refrigerator door body, the door opening sensor and the door closing sensor are both Hall sensors, and magnet blocks capable of triggering the door opening sensor and the door closing sensor in sequence are arranged at corresponding positions of one side edge of the door body.

In order to further solve the technical problem to be solved, in the slow descending structure of the vehicle-mounted refrigerator door body, the lighting component is arranged in the refrigerator body and is connected with the control component, so that the control component can control the lighting component according to the opening and closing state of the door body.

Compared with the prior art, the invention has the following advantages:

1. the damping hinge shaft is adopted to connect the door body and the box body, so that the door body is subjected to damping action when falling downwards in the closing direction, and the slow descending function is realized, thus noise when the door body is closed can be reduced, the use experience is increased, the possibility of damage of the door body is reduced, the service life of the door body is prolonged, the possibility of clamping fingers is also reduced, and the safety is improved.

2. The damping hinge shaft is a unidirectional damping hinge shaft. The door body is only damped when rotated in the closing direction, but not in the opening direction. By the aid of the design, in the door opening process, the door body is free from damping, labor is saved, and the door is convenient to open. When the door is closed, the door body is damped so as to slowly descend.

3. In the invention, when the door body is about to be closed, the first magnetic attraction piece is close to the second magnetic attraction piece and attracts each other, so that the door body is accelerated to be closed, and a certain attractive force is applied to the door body when the door body is closed, and the attractive force can overcome the damping force and the elastic force of the elastic reset piece, so that the buckling structure is further buckled smoothly. The advantages of this design are the following: firstly, the accuracy and stability of the door body closing can be improved, and the problem of unstable door body caused by the fact that the door body is not closed in place is solved. Second, it can save energy. When the door body is to be closed, the electromagnet can be electrified only when the door needs to be closed, so that energy sources are effectively saved. Finally, this design also has a higher user experience. The door body can be automatically closed rapidly and accurately, so that a user can use the refrigerator more conveniently, and the use experience of the user is improved.

4. In the invention, the door opening sensor and the door closing sensor are used for detecting the opening and closing states of the door body in real time and transmitting signals to the control component. The control assembly is in communication connection with the sensor assembly, and can control the on-off of the electromagnet according to the on-off state of the door body. The design makes the on-off of the electromagnet more accurate and more intelligent, and simultaneously can save energy. The control component can also alarm or prompt forgetting to close the door and abnormal closing of the door by combining the states of the door opening sensor and the door closing sensor.

Drawings

The invention is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded schematic view of the present invention;

FIG. 3 is a schematic cross-sectional view of the fastening structure;

FIG. 4 is a schematic perspective view of the second embodiment of the present invention (part of the outer cover is not shown);

fig. 5 is an enlarged partial schematic view at a in fig. 4.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

The slow descending structure of the vehicle-mounted refrigerator door body as shown in fig. 1 to 5 comprises a refrigerator body 1 and a door body 2 arranged at the opening of the top of the refrigerator body 1, wherein a damping hinge shaft 3 for rotatably connecting one side edge of the door body 2 and the refrigerator body 1 is arranged between the side edge of the door body and the refrigerator body 1.

According to the invention, the damping hinge shaft 3 is adopted to connect the door body 2 and the box body 1, so that the door body 2 is subjected to damping action when falling down in the closing direction, thereby realizing the function of slow descent, reducing noise when the door body 2 is closed, increasing the use experience, reducing the possibility of damage of the door body 2, prolonging the service life of the door body, reducing the possibility of clamping fingers, and improving the safety.

Specifically, the door body 2 and the box body 1 of the vehicle-mounted refrigerator are connected by the hinge shaft with the damping function (namely the damping hinge shaft 3), and the damping hinge shaft 3 can generate resistance in the falling process of the door body 2, so that the speed of the door body 2 is reduced in the closing process, and the slow-falling effect is realized. The advantages of this design appear in many ways:

firstly, by the descent control function, when the door body 2 is closed, the impact force is correspondingly reduced due to the speed reduction, and thus the generated noise is also greatly reduced. The mute effect obviously improves the experience of a user when the refrigerator on the vehicle is used, and particularly, in the running process of the vehicle, the extra noise reduction is helpful for maintaining the silence environment inside the cab.

Secondly, the slow descent function reduces the impact on the door body 2 and the hinge parts, which means that the abrasion speed of the door body 2 and the hinge shaft is reduced, thereby reducing the possibility of damage to the door body and effectively prolonging the service life of the product. This not only reduces the cost of maintenance and replacement of the components, but also reduces waste production from an environmental point of view.

In addition, the slow descent mechanism greatly reduces the risk of the user pinching the finger during operation. Because the speed of closing the door body is reduced, even if the finger is carelessly placed between the door body and the box body, the user can have enough time to remove the finger, so that the occurrence of safety accidents is reduced.

More specifically, the damping hinge shaft 3 is a unidirectional damping hinge shaft. Only when the door body 2 rotates in the closing direction, the damping effect is received, but when the door body 2 rotates in the opening direction, the damping effect is not received. By the design, in the door opening process, the door body 2 is free from damping, so that the door is labor-saving and convenient to open. When the door is closed, the door body 2 is damped so as to slowly lower the door body 2.

It should be noted that the damping hinge shaft 3 has a limiting function, and the door body 2 can reach a designed maximum opening angle after being opened to a certain angle. The angle is larger than 90 degrees, a stable structure is formed, and unless the door body 2 is closed by external force, the door body 2 can be stably kept at the maximum opening angle, so that a user can conveniently take and put articles with two hands.

The damping hinge shaft 3 is in the prior art, and the specific structure thereof is more, one of which can be seen in CN115726642a, and will not be described herein.

More importantly, a buckling structure 4 and a door closing auxiliary structure 5 for sucking the door body 2 when the door is closed so as to smoothly buckle the buckling structure 4 are arranged between the other side edge of the door body 2 and the box body 1. Since the damping hinge shaft 3 may prevent the buckling structure 4 from buckling, the present invention designs the door closing auxiliary structure 5 for assisting the buckling structure 4 to buckle.

More specifically, as shown in fig. 1 to 4, the fastening structure 4 is a mechanical structure, and specifically includes a fastening slot 41 provided on the case 1, and an elastic fastening component 42 provided on the door 2 and capable of fastening with the fastening slot 41.

Further, as shown in fig. 3, the elastic buckle assembly 42 includes a buckle 421 rotatably connected to the door body 2, and an elastic restoring member 422 for restoring the buckle 421 is disposed between the buckle 421 and the door body 2. Wherein the elastic restoring member 422 is preferably a spring.

In addition, the lower end of the fastener 421 is provided with a hook 4211 capable of hooking the fastening groove 41, so that the fastener 421 is tightly fastened with the fastening groove 41.

Preferably, the end of the hook 4211 is further provided with a guiding slope 4212, which plays a guiding role during the buckling, so that the fastener 421 impacts the case 1 to rotate, thereby being more easily buckled with the buckling groove 41.

Of course, in the process of fastening the door body 2, a certain downward pressure needs to be applied to the door body 2 to overcome the elastic force of the elastic reset member 422, so that the hook 4211 at the lower end of the fastener 421 passes over the fastening slot 41. Finally, the fastener 421 automatically rebounds under the action of the elastic reset piece 422 to hook the buckling groove 41, thereby realizing the buckling of the door body 2 and forming self-locking.

More specifically, the door closing auxiliary structure 5 includes a first magnetic attraction member 51 provided on the door body 2, and a second magnetic attraction member 52 provided on the case body 1. In the closing process of the door body 2, when the door body 2 is about to be closed, the first magnetic attraction pieces 51 are close to the second magnetic attraction pieces 52 and attract each other, so that the door body 2 is accelerated to be closed, the door body 2 is subjected to a certain attractive force when being closed, and the attractive force can overcome the damping force and the elastic force of the elastic reset piece 422, so that the buckling structure 4 is further buckled smoothly.

The advantages of this design are the following:

firstly, it can improve the accuracy and the stability of door body 2 closure, reduces the unstable problem of door body 2 that causes because door body 2 is closed not in place.

Second, it can save energy. When the door body 2 is about to be closed, the electromagnet can be electrified only when the door needs to be closed, so that energy sources are effectively saved.

Finally, this design also has a higher user experience. The door body can be automatically closed rapidly and accurately, so that a user can use the refrigerator more conveniently, and the use experience of the user is improved.

In order to make the operation of the first magnetic attraction piece 51 and the second magnetic attraction piece 52 more reliable and stable and easy to control, the invention adopts a design ingenious scheme, wherein one of the first magnetic attraction piece 51 and the second magnetic attraction piece 52 can be a magnet or an iron sheet, and the other one is an electromagnet (in the embodiment, the first magnetic attraction piece 51 is an iron sheet, and the second magnetic attraction piece 52 is an electromagnet). The electromagnet can be electrified only when the door needs to be closed, so that the energy consumption is saved. The electromagnet can be strongly attracted with the iron sheet after being electrified, so that enough force is provided for attracting the door body 2.

Of course, the electromagnet is started when the door body 2 is about to be completely closed, so that the electromagnet is started to attract the door body 2 to be closed, the elastic reset piece 422 can be overcome, the damping force can be overcome, and the noise is not generated.

Further, as shown in fig. 4 and 5, in order to facilitate accurate control of the electromagnet, a sensor assembly 53 for detecting the open/close state of the door 2 is disposed between the door 2 and the case 1, and the sensor assembly 53 includes a door opening sensor 531 and a door closing sensor 532. The door opening sensor 531 and the door closing sensor 532 are used to detect the opening and closing state of the door body in real time and transmit signals to the control unit. The control unit is connected with the sensor unit 53 in a communication manner, and can control the on/off of the electromagnet according to the on/off state of the door 2. The design ensures that the on-off of the electromagnet is more accurate, and simultaneously, the energy source can be saved.

Further, as shown in fig. 4 and 5, the door opening sensor 531 and the door closing sensor 532 are opposite to one side of the door body 2, and the door opening sensor 531 is located above the door closing sensor 532 and is offset by a certain angle. So that the door opening sensor 531 is triggered before the door closing sensor 532 is triggered during the closing of the door body 2.

Furthermore, the door opening sensor 531 and the door closing sensor 532 are hall sensors, and a strong magnet 533 capable of triggering the door opening sensor 531 and the door closing sensor 532 in sequence is arranged at a corresponding position of one side of the door body 2.

The state of the door body 2 can be judged by triggering the sequence of the sensors through the strong magnet blocks 533 on the door body 2. The method comprises the following steps:

1) When the door 2 is closed in place, the magnet block 533 always triggers the door closing sensor 532, and the door opening sensor 531 is not triggered.

2) In the door opening process, the magnet 533 on the door body 2 triggers the two hall sensors successively, that is, the door closing sensor 532 is changed from the triggered state to the non-triggered state, the door opening sensor 531 is changed from the non-triggered state to the triggered state, after exceeding a certain angle, the two sensors are both in the non-triggered state, and when the refrigerator control assembly judges that the door body 2 is opened.

3) In the closing process of the door body 2, the magnet 533 on the door body 2 triggers the two Hall sensors successively, namely, the two sensors are in a non-triggering state at the beginning, and when the door opening sensor 531 reaches the triggering position of the door opening sensor 531, the door opening sensor 531 is triggered; as the door 2 is closed, the door opening sensor 531 is turned to the non-trigger state, and the door closing sensor 532 is turned to the trigger state from the non-trigger state, at which time the refrigerator control assembly determines that the door 2 has been closed.

The door body 2 falls from the opened state, and the door opening sensor 531 is triggered first. At this time, the refrigerator control assembly judges that the door body 2 is in the falling process, and the electromagnet (the second magnetic attraction piece 52) is electrified to start to attract the door body 2.

When the door closing sensor 532 triggers, it is judged that the door closing is completed, the electromagnet is powered off, and the door body 2 completes the buckling.

Since the electromagnet is intermittently supplied according to the open/close state of the door body 2. That is, when the door body 2 is opened for a long time, the electromagnet is not electrified; when the door body 2 is closed for a long time, the door body is buckled by a mechanical structure, namely a buckling structure 4, and the electromagnet is not electrified; only in the closing process, the electromagnet is electrified. The design ensures that the electrifying time of the electromagnet is uninterrupted, thereby reducing the energy consumption and having the energy-saving effect.

The control component of the vehicle-mounted refrigerator can combine the states of the door opening sensor 531 and the door closing sensor 532 to give an alarm or prompt about forgetting to close the door (after the door is opened, the two sensors are in a non-trigger state for a long time) and abnormal closing (the door opening sensor 531 is triggered in the door closing process, but the door closing sensor 532 is not triggered for a long time).

In addition, preferably, the control assembly is provided with a wireless communication module, and when the vehicle-mounted refrigerator is in the two abnormal states, the control assembly can remotely prompt or alarm and control to stop the refrigerator through the wireless communication module, so that abnormal operation of the refrigerator is avoided, and energy consumption is increased.

Normally, when the external power supply is cut off, the electromagnet is not started, but the door body 2 can be opened and buckled manually because the mechanical buckling structure 4 can still work normally.

In the case 1, a lighting assembly 6 is preferably provided, and the lighting assembly 6 is connected to a control assembly so that the control assembly can control the operation of the lighting assembly 6 according to the opened and closed state of the door 2. The lighting assembly 6 generally comprises at least one illumination lamp, and can provide illumination in the case 1 when the refrigerator needs to be used at night, so that the use of the refrigerator is more convenient for users.

The control unit receives and processes the open/close state information of the door body 2 through the door opening sensor 531 and the door closing sensor 532, thereby controlling the lighting and extinguishing of the lighting lamp. Specifically, when the door body 2 is opened, the control component turns on the power supply of the illuminating lamp to enable the illuminating lamp to be lightened; when the door body 2 is closed, the control component cuts off the power supply of the illuminating lamp to extinguish the illuminating lamp. This design uses intermittent power to power the lighting assembly 6, which increases the lifetime of the lighting assembly 6 and reduces power consumption.

In addition, when the refrigerator is in an abnormal door body 2 state (for example, the door is not closed or closed for a long time), the lighting component 6 can also send out a light prompt in a flashing mode so as to remind a user of timely processing the abnormal state of the door body. The design not only can improve the use experience of users, but also can improve the safety of the refrigerator to a certain extent.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a vehicle-mounted refrigerator door slowly falls structure which characterized in that: the door comprises a box body (1) and a door body (2) arranged at the opening of the top of the box body (1), wherein a damping hinge shaft (3) for rotating and connecting the two is arranged between one side edge of the door body (2) and the box body (1), a buckling structure (4) is arranged between the other side edge of the door body (2) and the box body (1), and a door closing auxiliary structure (5) for enabling the buckling structure (4) to be buckled smoothly is used for sucking the door body (2) when the door is closed.

2. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 1, wherein: the damping hinge shaft (3) is a unidirectional damping hinge shaft, and the door body (2) is subjected to damping action when rotating towards the closing direction.

3. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 1, wherein: the buckling structure (4) comprises a buckling groove (41) arranged on the box body (1) and an elastic buckling assembly (42) which is arranged on the door body (2) and can be buckled with the buckling groove (41) mutually.

4. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 3, wherein: the elastic buckle component (42) comprises a buckle (421) rotatably connected to the door body (2), and an elastic reset piece (422) for resetting the buckle (421) is arranged between the buckle (421) and the door body (2).

5. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 1, wherein: the door closing auxiliary structure (5) comprises a first magnetic attraction piece (51) arranged on the door body (2) and a second magnetic attraction piece (52) arranged on the box body (1), and in the closing process of the door body (2), the first magnetic attraction piece (51) can be close to the second magnetic attraction piece (52) and attract each other, so that the door body (2) is accelerated to be closed, and the buckling structure (4) is buckled smoothly.

6. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 5, wherein: one of the first magnetic attraction piece (51) and the second magnetic attraction piece (52) is a magnet or an iron sheet, and the other is an electromagnet.

7. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 6, wherein: a sensor component (53) for detecting the switching state of the door body (2) is arranged between the door body (2) and the box body (1), the electromagnet is connected with a control component, and the control component is in communication connection with the sensor component (53), so that the control component can control the on-off of the electromagnet according to the switching state of the door body (2).

8. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 7, wherein: the sensor assembly (53) comprises a door opening sensor (531) and a door closing sensor (532) which are arranged on the box body (1) and face one side edge of the door body (2), and the door opening sensor (531) is located above the door closing sensor (532) so that the door opening sensor (531) is triggered firstly and then the door closing sensor (532) is triggered in the closing process of the door body (2).

9. The slow descending structure of a door of a vehicle-mounted refrigerator according to claim 8, wherein: the door opening sensor (531) and the door closing sensor (532) are hall sensors, and a magnet block (533) capable of triggering the door opening sensor (531) and the door closing sensor (532) in sequence is arranged at a corresponding position of one side edge of the door body (2).

10. The slow descending structure of a door body of a vehicle-mounted refrigerator according to claim 7, wherein: the box (1) is internally provided with a lighting component (6), and the lighting component (6) is connected with a control component, so that the control component can control the lighting component (6) according to the opening and closing state of the door body (2).